[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

US20050004585A1 - Magnetically navigable and/or controllable device for removing material from body lumens and cavities - Google Patents

Magnetically navigable and/or controllable device for removing material from body lumens and cavities Download PDF

Info

Publication number
US20050004585A1
US20050004585A1 US10/852,304 US85230404A US2005004585A1 US 20050004585 A1 US20050004585 A1 US 20050004585A1 US 85230404 A US85230404 A US 85230404A US 2005004585 A1 US2005004585 A1 US 2005004585A1
Authority
US
United States
Prior art keywords
cutting head
magnetic
cavity
lumen
magnetic field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/852,304
Inventor
Andrew Hall
Jeffrey Garibaldi
Peter Werp
John Lasala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/281,241 external-priority patent/US6428551B1/en
Application filed by Individual filed Critical Individual
Priority to US10/852,304 priority Critical patent/US20050004585A1/en
Publication of US20050004585A1 publication Critical patent/US20050004585A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
    • A61B2017/22042—Details of the tip of the guide wire
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B2017/320004—Surgical cutting instruments abrasive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
    • A61B2034/2046—Tracking techniques
    • A61B2034/2051—Electromagnetic tracking systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
    • A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0127—Magnetic means; Magnetic markers

Definitions

  • This invention relates to devices for removing material from body lumens and cavities, and in particular to such devices that can be magnetically navigated and/or controlled.
  • Atherectomy devices typically comprise a blade or cutting bit or burr on the distal end of a flexible drive shaft.
  • the drive shaft is preferably contained within a flexible sheath to protect the walls of the blood vessels from the rotation of the drive shaft. Examples of such devices include Shiber, U.S. Pat. No. 4,842,579, Simpson et al., U.S. Pat. No. 5,047,040; and Auth et al., U.S. Pat. No. 5,314,407, incorporated herein by reference.
  • An atherectomy device is typically navigated to the site of the disease by mechanically manipulating a guide wire to the site of the disease, and then advancing the atherectomy device over the guide wire to the site.
  • the navigation of the guide wire through the blood vessel can be a slow and tedious process, requiring great skill.
  • Once at the site of the disease it can be difficult to precisely control the atherectomy device to satisfactorily remove the atheromatous material. Part of this difficulty arises from guide wire bias, for example as the atherectomy device traverses bends in the blood vessels the guide wire and device tend to move toward the outside of the bend, making it difficult to remove atheromatous material from the insides of the bends.
  • the present invention relates to an atherectomy device that can be magnetically controlled, and to the magnetic control of atherectomy devices.
  • the atherectomy device of the present invention comprises a flexible drive shaft, with a cutting head on the distal end of the drive shaft.
  • a magnet is associated with the cutting head.
  • the cutting head itself is made of a magnetic material, either a permanent magnet or a permeable magnet.
  • a magnet is disposed between the cutting head and the drive shaft.
  • the distal end portion of the drive shaft adjacent the cutting head is magnetic.
  • a magnet is positioned on the distal end of the sheath, in proximity to the cutting head.
  • the magnet can be any material with magnetic properties (i.e., responsive to a magnetic field or magnetic gradient), and may either be a separate part or constitute a magnetic portion of an existing part.
  • the magnet associated with the cutting head facilitates navigation of the atherectomy device to the procedure site, and control of the cutting head at the procedure site through the application of a magnetic field and/or magnetic field gradient.
  • a magnetic field can be applied to orient the atherectomy device in the blood vessel for navigating to the procedure site.
  • the applied magnetic field aligns the magnet associated with cutting head in the direction of the field, so that the atherectomy device can be more easily steered through the blood vessels.
  • the device can then be advanced in the desired direction simply by pushing on the proximal end.
  • a magnetic field gradient can be applied to the magnet associated with the cutting head to apply force to the atherectomy device to actually move the device through the blood vessel, or assist the mechanical pushing of the device through the blood vessel.
  • magnetic fields and/or magnetic field gradients can be applied to the magnet associated with the cutting head to control the orientation of the device and its position within the cross-section of the blood vessel.
  • the cutting portion of the cutting head can be oriented toward the accumulated atheromatous material, and the cutting tool itself can be moved within the cross-section of the blood vessel to act on the accumulated atheromatous material, for example on the insides of bends. Because the tool can be both oriented and moved, the tool can open a passage in the blood vessel that is larger than the cross section of the device itself.
  • the procedure can be automated, so that once the tool is navigated to the site of the disease, the tool is automatically precessed to clear the cross-section of the vessel in adjacent the atherectomy device of the atheromatous material.
  • precessing the cutting head by continuously changing the magnetic field it is also possible to continuously move the cutting head around the cross-section of the vessel by continuously varying the magnetic gradient.
  • both the magnetic field and magnetic gradient can be simultaneously changed to cause the orientation and the position of the cutting head to change to remove material from around the cross section of the vessel.
  • the atherectomy device can be used in conjunction with a magnetic guide wire.
  • a magnet can be provided on the end of a conventional guide wire, or a portion of the guide wire can be made magnetic.
  • the guide wire is then navigated to the diseased site.
  • the magnet on or in the guide wire facilitates orienting and/or moving the guide wire through the blood vessels.
  • the atherectomy device can be brought into close association with the magnet on the guide wire, and the magnet on the guide wire can be used to orient and to move the cutting head within the blood vessel.
  • the atherectomy device of the present invention can be quickly and easily navigated to the site of the disease. This makes the procedure easier on the physician and the on patient. Once at the site, the tool can be operated more effectively, removing atheramotous material from around the entire circumference of the blood vessel, and clearing a passageway larger than the cross section of the atherectomy device itself.
  • FIG. 1 is a partial longitudinal cross sectional view of an atherectomy device constructed according the principles of this invention
  • FIG. 2 is a partial longitudinal cross sectional view of an alternate construction of the atherectomy device, incorporating a discrete magnet;
  • FIG. 3 is a partial longitudinal cross-sectional view of an alternate construction of the atherectomy device, in which a portion of the drive shaft is magnetic;
  • FIG. 4 is a partial longitudinal cross-sectional view of an alternate construction of the atherectomy device, incorporating a magnet on the sheath;
  • FIG. 5A is a longitudinal cross-sectional view of a blood vessel showing an atherectomy device of the present invention therein before the application of a magnetic gradient;
  • FIG. 5B is a longitudinal cross-sectional view of a blood vessel showing an atherectomy device of the present invention therein during the application of a magnetic gradient;
  • FIG. 6A is a longitudinal cross-sectional view of a curved segment of a blood vessel showing an atherectomy device of the present invention therein, before the application of a magnetic gradient;
  • FIG. 6B is a longitudinal cross-sectional view of a curved segment of a blood vessel showing an atherectomy device of the present invention therein, during the application of a magnetic gradient;
  • FIG. 7 is a transverse cross section of a blood vessel showing the possible positions of an atherectomy device of the present invention with the application of a magnetic gradient
  • FIG. 8 is a longitudinal cross-sectional view of the blood vessel showing a atherectomy tool oriented by a magnetic field to remove accumulated atheromatous material
  • FIG. 9A is a partial longitudinal cross sectional view of an atherectomy device constructed according to the principles of this invention, employing a magnetic guide wire with a discrete magnet;
  • FIG. 9B is a partial longitudinal cross sectional view of an atherectomy device constructed according to the principles of this invention, employing a magnetic guide wire with a magnetic portion;
  • FIG. 10 is a partial longitudinal cross sectional view of an athrectomy device constructed according to the principles of this invention without a guide wire.
  • FIG. 1 An atherectomy device constructed according to the principles of this invention is indicated generally as 20 in FIG. 1 . While the drawings and description of this preferred embodiment show and describe an atherectomy device for removing atheromatous material from the walls of blood vessels, the invention is not so limited, and applies to any magnetically navigable and/or controllable device for removing material from the surface of a body lumen or cavity.
  • the atherectomy device 20 comprises a flexible drive shaft 22 and a cutting head 24 .
  • the drive shaft 22 is preferably made from a tight helically coiled wire.
  • the cutting head 24 is preferably an oblate spheroid, with an abrasive, such as diamond particles on the distal end.
  • the drive shaft 22 rotates the cutting head 24 , and the abrasive on the distal end of the cutting head abrades the atheromatous material in the vessel.
  • the guide wire 28 can be advanced in the blood vessel and then the atherectomy device 20 is advanced over the guide wire to the procedure site.
  • the end 30 of the guide wire 28 may have a stop 32 , to prevent the guide wire from being withdrawn entirely into the passage 26 , and to blunt the end of the guide wire so that it does not puncture the blood vessel.
  • the athrectomy device can be used without a guide wire and guided magnetically.
  • the cutting head 24 is made from or contains a magnetic material, for example a permanent magnetic materials such as Hiperco® (available from Carpenter Steel, Reading, Pa.) or a permeable magnetic material such as neodymium-iron-boron (Nd—Fe—B) (available from Magstar Technologies, Minneapolis, Minn.
  • the cutting head 24 may be coated with an abrasive material, such as diamond dust embedded in the distal surface of the head.
  • the drive shaft 22 is preferably enclosed in a sheath 34 , that protects the blood vessel from the rotating drive shaft.
  • the sheath 34 may be made of a conventional medical catheter material such as polyvinylchloride.
  • FIG. 2 A first alternative construction of the atherectomy device 20 , indicated as 20 ′, is shown in FIG. 2 .
  • the atherectomy device 20 ′ is similar in construction to atherectomy device 20 , except that instead of the cutting head 24 being made from a magnetic material, a magnet 36 is disposed between the drive shaft 22 and the cutting head 24 .
  • This magnet may be a permanent magnetic material such as Hiperco®, or a permeable magnetic material such as Nd—Fe—B.
  • FIG. 3 A second alternative construction of the atherectomy device 20 , indicated generally as 20 ′′, is shown in FIG. 3 .
  • the atherectomy device 20 ′′ is similar in construction to atherectomy device 20 , except that instead of the cutting head 24 being made from a magnetic material, the distal portion 38 of drive shaft 22 is magnetic. This distal portion may be made from a permanent magnetic material such as Hiperco® or a permeable magnetic material such as Nd—Fe—B.
  • FIG. 4 A third alternative construction of the atherectomy device 20 , indicated generally as 20 ′′′ is shown in FIG. 4 .
  • the atherectomy device is similar in construction to atherectomy device 20 , except that instead of the cutting head 24 being made from a magnetic material, the distal portion of the sheath has a magnet 40 thereon.
  • the magnet may be embedded in the distal end portion of the catheter, or secured on the end, for example with a suitable medical grade adhesive.
  • the cutting head can be retracted against the magnet 40 , so that the magnet is closely associated with the cutting head 24 .
  • a magnetic field can be applied to orient the atherectomy device in the blood vessel for navigating to the procedure site.
  • the externally applied magnetic field may be applied, for example with a magnetic surgery system like that disclosed in co-pending U.S. patent application Ser. No. 08-920,446, filed Aug. 29, 1997, entitled Method and Apparatus for Magnetically Controlling Motion Direction of a Mechanically Pushed Catheter, incorporated herein by reference.
  • the applied magnetic field aligns the magnet associated with cutting head, e.g., the magnetic cutting head 24 in device 20 , the magnet 36 associated with the cutting head in device 20 ′, or the magnetic distal end portion 38 of the drive shaft 22 in device 20 ′′, in the direction of the field, so that the atherectomy device can be more easily steered through the blood vessels.
  • the device can then be advanced in the desired direction simply by pushing on the proximal end.
  • a magnetic field gradient can be applied to the to the magnet associated with the cutting head to apply force to the atherectomy device to actually advance the device through the blood vessel. This force can be the only force used to move the atherectomy device, or this force can merely be used to assist the mechanical pushing of the device through the blood vessel.
  • FIG. 5A shows an atherectomy device 20 in a blood vessel.
  • the device is positioned generally along the guide wire 28 .
  • the cutting head 24 can be drawn toward the accumulated atheromatous material, to more completely and effectively abrade the material from the vessel wall.
  • This technique is particularly advantageous in the bends of blood vessels, as shown in FIG. 6A , wherein the natural stiffness of the guide wire and the device causes the atherectomy device to a position away from the inside of the curve and toward the outside of the curve.
  • the cutting head 24 upon the application of a magnetic field gradient, the cutting head 24 can be drawn against the accumulated atheromatous a material on the inside of the bend, to remove this material and more completely open the blood vessel.
  • FIG. 7 by controlling the direction of the applied magnetic gradient, it is possible to move the cutting head to any position in the cross section of the blood vessel.
  • the field direction can be along the axis of the vessel, to keep the cutting head oriented along the vessel.
  • the field direction can be at an angle with respect to the vessel, to tilt the cutting head into the atheromatous material.
  • the cutting head 24 by continuously moving the applied magnetic field, it is possible to precess the cutting head 24 around the circumference of the vessel, moving the cutting head to clear substantially the entire cross section of the vessel.
  • the cutting tool can be automatically precessed within the vessel.
  • the atherectomy tool can be used to create a flow pathway through the vessel that is actually larger than the cross section of the atherectomy device.
  • the cutting head As the cutting head is precessing, it can be slowly advanced across the accumulated atheromatous material.
  • both the magnetic field and magnetic gradient can be simultaneously changed to cause the orientation and the position of the cutting head to change to remove material from around the cross section of the vessel.
  • the atherectomy device can be used in conjunction with a magnetic guide wire 100 , having a magnetic distal end portion.
  • the guide wire 100 has a discrete magnet 102 on its distal end.
  • the distal end portion 104 of the guide wire 100 is made from a magnetic wire material.
  • the guide wire is then navigated to the diseased site.
  • the magnet on or in the guide wire facilitate orienting and/or moving the guide wire through the blood vessels.
  • the atherectomy device can be brought into close association with the magnet on the guide wire, and the magnet on the guide wire can be used to orient and to move the cutting head within the blood vessel.
  • the atherectomy device can be used without any guide wire.
  • the device is navigated solely by the application of magnetic fields and/or gradients, which apply a force through the magnet associated with the cutting head.
  • One method of navigating such an atherectomy device is that disclosed in co-assigned U.S. patent application Ser. No. 60/095,710 filed Aug. 7, 1998, and incorporated herein by reference.
  • the operating region in the patient is viewed on two planar fluoroscopic images of the operating region.
  • the physician identifies the current position of the atherectomy device on each display, for example by using a mouse or similar device to point and click on the desired location.
  • a computer can control an electromagnetic system for generating an electromagnetic field and/or gradient for orienting and/or moving the distal end of the atherectomy device as input by the physician.
  • the distal end of the atherectomy device is advanced manually or automatically, or in some cases it can be moved by a magnetic field or gradient.
  • the atherectomy device can be magnetically directed to the site of the occlusion without a guide wire, and once at the site of the occlusion can be magnetically manipulated to remove the material blocking the vessel or lumen.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

A magnetically navigable atherectomy device includes a cutting head, a flexible drive shaft having a proximal and a distal end, with the cutting device on the distal end, and a magnet associated with the cutting head, the magnet of sufficient size to allow the cutting head to be oriented by an externally applied magnetic field. The magnet may be a portion of the cutting head made from a magnetically permeable or permanent magnetic material, a portion of the drive shaft made from a magnetically permeable or permanent magnetic material; a separate magnet between the cutting head and the drive shaft, a portion a magnet on a sheath covering the drive shaft. Alternatively a guide wire can provided with a magnetic material on its distal end. Through the application of a magnetic field and/or a magnetic gradient, the artherectomy device can be guided to the location of the atheromatous material in the body. Once at the site of atheromatous material, through the application of a magnetic field or magnetic gradient, the device can be manipulated into proximity to the atheromatous material to remove the material.

Description

    FIELD OF THE INVENTION
  • This invention relates to devices for removing material from body lumens and cavities, and in particular to such devices that can be magnetically navigated and/or controlled.
    • BACKGROUND OF THE INVENTION
  • There are many medical conditions where it is desirable to remove material from the surface of a body lumen or cavity. For example in the case of occluded blood vessels, one method of treating this condition to use a cutting tool in the blood vessel to remove accumulated atheromatous material. These tools, frequently called atherectomy devices, typically comprise a blade or cutting bit or burr on the distal end of a flexible drive shaft. The drive shaft is preferably contained within a flexible sheath to protect the walls of the blood vessels from the rotation of the drive shaft. Examples of such devices include Shiber, U.S. Pat. No. 4,842,579, Simpson et al., U.S. Pat. No. 5,047,040; and Auth et al., U.S. Pat. No. 5,314,407, incorporated herein by reference.
  • An atherectomy device is typically navigated to the site of the disease by mechanically manipulating a guide wire to the site of the disease, and then advancing the atherectomy device over the guide wire to the site. The navigation of the guide wire through the blood vessel can be a slow and tedious process, requiring great skill. Once at the site of the disease, it can be difficult to precisely control the atherectomy device to satisfactorily remove the atheromatous material. Part of this difficulty arises from guide wire bias, for example as the atherectomy device traverses bends in the blood vessels the guide wire and device tend to move toward the outside of the bend, making it difficult to remove atheromatous material from the insides of the bends. Even in straighter segments of blood vessels, it is difficult to control the position of the atherectomy device within the cross section of the blood vessel, or the orientation of the cutting head of the atherectomy device within the blood vessel, and thus it is difficult to form a passage through the vessel larger than that cross section of the tool.
    • SUMMARY OF THE INVENTION
  • The present invention relates to an atherectomy device that can be magnetically controlled, and to the magnetic control of atherectomy devices. Generally, the atherectomy device of the present invention comprises a flexible drive shaft, with a cutting head on the distal end of the drive shaft. A magnet is associated with the cutting head. In one construction, the cutting head itself is made of a magnetic material, either a permanent magnet or a permeable magnet. In another construction a magnet is disposed between the cutting head and the drive shaft. In still another construction, the distal end portion of the drive shaft adjacent the cutting head is magnetic. In still another construction, a magnet is positioned on the distal end of the sheath, in proximity to the cutting head. The magnet can be any material with magnetic properties (i.e., responsive to a magnetic field or magnetic gradient), and may either be a separate part or constitute a magnetic portion of an existing part.
  • The magnet associated with the cutting head facilitates navigation of the atherectomy device to the procedure site, and control of the cutting head at the procedure site through the application of a magnetic field and/or magnetic field gradient. A magnetic field can be applied to orient the atherectomy device in the blood vessel for navigating to the procedure site. The applied magnetic field aligns the magnet associated with cutting head in the direction of the field, so that the atherectomy device can be more easily steered through the blood vessels. The device can then be advanced in the desired direction simply by pushing on the proximal end. Alternatively, or in addition, a magnetic field gradient can be applied to the magnet associated with the cutting head to apply force to the atherectomy device to actually move the device through the blood vessel, or assist the mechanical pushing of the device through the blood vessel. Once at the procedure site, magnetic fields and/or magnetic field gradients can be applied to the magnet associated with the cutting head to control the orientation of the device and its position within the cross-section of the blood vessel. Thus, with the application of a magnetic field, the cutting portion of the cutting head can be oriented toward the accumulated atheromatous material, and the cutting tool itself can be moved within the cross-section of the blood vessel to act on the accumulated atheromatous material, for example on the insides of bends. Because the tool can be both oriented and moved, the tool can open a passage in the blood vessel that is larger than the cross section of the device itself. By automating the control of the direction and/or gradient of the applied magnetic field, the procedure can be automated, so that once the tool is navigated to the site of the disease, the tool is automatically precessed to clear the cross-section of the vessel in adjacent the atherectomy device of the atheromatous material. In addition to precessing the cutting head by continuously changing the magnetic field, it is also possible to continuously move the cutting head around the cross-section of the vessel by continuously varying the magnetic gradient. Of course both the magnetic field and magnetic gradient can be simultaneously changed to cause the orientation and the position of the cutting head to change to remove material from around the cross section of the vessel.
  • In accordance with another embodiment of this invention, it is also possible that instead of, or in addition to, associating a magnet with the cutting head, the atherectomy device can be used in conjunction with a magnetic guide wire. A magnet can be provided on the end of a conventional guide wire, or a portion of the guide wire can be made magnetic. The guide wire is then navigated to the diseased site. The magnet on or in the guide wire facilitates orienting and/or moving the guide wire through the blood vessels. Once at the site, the atherectomy device can be brought into close association with the magnet on the guide wire, and the magnet on the guide wire can be used to orient and to move the cutting head within the blood vessel.
  • The atherectomy device of the present invention can be quickly and easily navigated to the site of the disease. This makes the procedure easier on the physician and the on patient. Once at the site, the tool can be operated more effectively, removing atheramotous material from around the entire circumference of the blood vessel, and clearing a passageway larger than the cross section of the atherectomy device itself. These and other features and advantages will be in part apparent and in part pointed out hereinafter.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a partial longitudinal cross sectional view of an atherectomy device constructed according the principles of this invention;
  • FIG. 2 is a partial longitudinal cross sectional view of an alternate construction of the atherectomy device, incorporating a discrete magnet;
  • FIG. 3 is a partial longitudinal cross-sectional view of an alternate construction of the atherectomy device, in which a portion of the drive shaft is magnetic;
  • FIG. 4 is a partial longitudinal cross-sectional view of an alternate construction of the atherectomy device, incorporating a magnet on the sheath;
  • FIG. 5A is a longitudinal cross-sectional view of a blood vessel showing an atherectomy device of the present invention therein before the application of a magnetic gradient;
  • FIG. 5B is a longitudinal cross-sectional view of a blood vessel showing an atherectomy device of the present invention therein during the application of a magnetic gradient;
  • FIG. 6A is a longitudinal cross-sectional view of a curved segment of a blood vessel showing an atherectomy device of the present invention therein, before the application of a magnetic gradient;
  • FIG. 6B is a longitudinal cross-sectional view of a curved segment of a blood vessel showing an atherectomy device of the present invention therein, during the application of a magnetic gradient;
  • FIG. 7 is a transverse cross section of a blood vessel showing the possible positions of an atherectomy device of the present invention with the application of a magnetic gradient; FIG. 8 is a longitudinal cross-sectional view of the blood vessel showing a atherectomy tool oriented by a magnetic field to remove accumulated atheromatous material;
  • FIG. 9A is a partial longitudinal cross sectional view of an atherectomy device constructed according to the principles of this invention, employing a magnetic guide wire with a discrete magnet;
  • FIG. 9B is a partial longitudinal cross sectional view of an atherectomy device constructed according to the principles of this invention, employing a magnetic guide wire with a magnetic portion; and
  • FIG. 10 is a partial longitudinal cross sectional view of an athrectomy device constructed according to the principles of this invention without a guide wire.
  • Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings.
    • DETAILED DESCRIPTION OF THE INVENTION
  • An atherectomy device constructed according to the principles of this invention is indicated generally as 20 in FIG. 1. While the drawings and description of this preferred embodiment show and describe an atherectomy device for removing atheromatous material from the walls of blood vessels, the invention is not so limited, and applies to any magnetically navigable and/or controllable device for removing material from the surface of a body lumen or cavity. As shown in FIG. 1, the atherectomy device 20 comprises a flexible drive shaft 22 and a cutting head 24. The drive shaft 22 is preferably made from a tight helically coiled wire. The cutting head 24 is preferably an oblate spheroid, with an abrasive, such as diamond particles on the distal end. The drive shaft 22 rotates the cutting head 24, and the abrasive on the distal end of the cutting head abrades the atheromatous material in the vessel. There is a passage 26 through cutting head 24, and through the drive shaft 22 for receiving a guide wire 28. The guide wire 28 can be advanced in the blood vessel and then the atherectomy device 20 is advanced over the guide wire to the procedure site. The end 30 of the guide wire 28 may have a stop 32, to prevent the guide wire from being withdrawn entirely into the passage 26, and to blunt the end of the guide wire so that it does not puncture the blood vessel. Of course, as described below, the athrectomy device can be used without a guide wire and guided magnetically. This is particularly advantageous in totally occluded vessels where the guide wire cannot extend in front of the atherectomy device because of the occlusion. According to the principles of this invention, the cutting head 24 is made from or contains a magnetic material, for example a permanent magnetic materials such as Hiperco® (available from Carpenter Steel, Reading, Pa.) or a permeable magnetic material such as neodymium-iron-boron (Nd—Fe—B) (available from Magstar Technologies, Minneapolis, Minn. The cutting head 24 may be coated with an abrasive material, such as diamond dust embedded in the distal surface of the head.
  • The drive shaft 22 is preferably enclosed in a sheath 34, that protects the blood vessel from the rotating drive shaft. The sheath 34 may be made of a conventional medical catheter material such as polyvinylchloride.
  • A first alternative construction of the atherectomy device 20, indicated as 20′, is shown in FIG. 2. The atherectomy device 20′ is similar in construction to atherectomy device 20, except that instead of the cutting head 24 being made from a magnetic material, a magnet 36 is disposed between the drive shaft 22 and the cutting head 24. This magnet may be a permanent magnetic material such as Hiperco®, or a permeable magnetic material such as Nd—Fe—B.
  • A second alternative construction of the atherectomy device 20, indicated generally as 20″, is shown in FIG. 3. The atherectomy device 20″ is similar in construction to atherectomy device 20, except that instead of the cutting head 24 being made from a magnetic material, the distal portion 38 of drive shaft 22 is magnetic. This distal portion may be made from a permanent magnetic material such as Hiperco® or a permeable magnetic material such as Nd—Fe—B.
  • A third alternative construction of the atherectomy device 20, indicated generally as 20′″ is shown in FIG. 4. The atherectomy device is similar in construction to atherectomy device 20, except that instead of the cutting head 24 being made from a magnetic material, the distal portion of the sheath has a magnet 40 thereon. The magnet may be embedded in the distal end portion of the catheter, or secured on the end, for example with a suitable medical grade adhesive. The cutting head can be retracted against the magnet 40, so that the magnet is closely associated with the cutting head 24.
  • Regardlesss of the means by which the magnet is associated with the atherectomy device, a magnetic field can be applied to orient the atherectomy device in the blood vessel for navigating to the procedure site. The externally applied magnetic field may be applied, for example with a magnetic surgery system like that disclosed in co-pending U.S. patent application Ser. No. 08-920,446, filed Aug. 29, 1997, entitled Method and Apparatus for Magnetically Controlling Motion Direction of a Mechanically Pushed Catheter, incorporated herein by reference. The applied magnetic field aligns the magnet associated with cutting head, e.g., the magnetic cutting head 24 in device 20, the magnet 36 associated with the cutting head in device 20′, or the magnetic distal end portion 38 of the drive shaft 22 in device 20″, in the direction of the field, so that the atherectomy device can be more easily steered through the blood vessels. Once the distal end of the device is oriented in the desired direction of travel by the magnetic field, the device can then be advanced in the desired direction simply by pushing on the proximal end. Alternatively, or in addition, a magnetic field gradient can be applied to the to the magnet associated with the cutting head to apply force to the atherectomy device to actually advance the device through the blood vessel. This force can be the only force used to move the atherectomy device, or this force can merely be used to assist the mechanical pushing of the device through the blood vessel.
  • Once at the site, magnetic fields can be applied to the magnet associated with the cutting head to control the orientation of the device and its position within the cross-section of the blood vessel. Thus, with the application of a magnetic field, the cutting portion of the cutting head can be oriented toward the accumulated atheromatous material, and the cutting tool itself can be moved within the cross-section of the blood vessel to act on the accumulated atheromatous material, for example on the insides of bends. FIG. 5A shows an atherectomy device 20 in a blood vessel. The device is positioned generally along the guide wire 28. However, as shown in FIG. 5B upon the application of a magnetic field gradient, the cutting head 24 can be drawn toward the accumulated atheromatous material, to more completely and effectively abrade the material from the vessel wall. This technique is particularly advantageous in the bends of blood vessels, as shown in FIG. 6A, wherein the natural stiffness of the guide wire and the device causes the atherectomy device to a position away from the inside of the curve and toward the outside of the curve. However, as shown in FIG. 6B, upon the application of a magnetic field gradient, the cutting head 24 can be drawn against the accumulated atheromatous a material on the inside of the bend, to remove this material and more completely open the blood vessel. As shown in FIG. 7, by controlling the direction of the applied magnetic gradient, it is possible to move the cutting head to any position in the cross section of the blood vessel.
  • As shown in FIG. 8, it is also possible to apply a magnetic field to simply orient the cutting head 24, positioning the distal abrasive cutting surface of the cutting head against the atheromatous material on the vessel wall. The effects of orientation with a magnetic field and positioning with a magnetic gradient can be combined. While the gradient pulls the cutting head into the atheromatous material, the field direction can be along the axis of the vessel, to keep the cutting head oriented along the vessel. Alternatively, the field direction can be at an angle with respect to the vessel, to tilt the cutting head into the atheromatous material.
  • Further, by continuously moving the applied magnetic field, it is possible to precess the cutting head 24 around the circumference of the vessel, moving the cutting head to clear substantially the entire cross section of the vessel. By employing a microprocessor control, or other automated control to change the magnetic field as a function of time, the cutting tool can be automatically precessed within the vessel. Thus the atherectomy tool can be used to create a flow pathway through the vessel that is actually larger than the cross section of the atherectomy device. As the cutting head is precessing, it can be slowly advanced across the accumulated atheromatous material. In addition to precessing the cutting head by continuously changing the magnetic field, it is also possible to continuously move the cutting head around the cross-section of the vessel by continuously varying the magnetic gradient. Of course both the magnetic field and magnetic gradient can be simultaneously changed to cause the orientation and the position of the cutting head to change to remove material from around the cross section of the vessel.
  • In accordance with a second embodiment of this invention, shown in FIG. 9A and 9B, it is also possible that instead of, or in addition to, associating a magnetic with the cutting head, the atherectomy device can be used in conjunction with a magnetic guide wire 100, having a magnetic distal end portion. As shown in FIG. 9A, the guide wire 100 has a discrete magnet 102 on its distal end. As shown in FIG. 9B, the distal end portion 104 of the guide wire 100 is made from a magnetic wire material. The guide wire is then navigated to the diseased site. The magnet on or in the guide wire facilitate orienting and/or moving the guide wire through the blood vessels. Once at the site, the atherectomy device can be brought into close association with the magnet on the guide wire, and the magnet on the guide wire can be used to orient and to move the cutting head within the blood vessel.
  • In accordance with a third embodiment of this invention, shown in FIG. 10, the atherectomy device can be used without any guide wire. The device is navigated solely by the application of magnetic fields and/or gradients, which apply a force through the magnet associated with the cutting head. One method of navigating such an atherectomy device is that disclosed in co-assigned U.S. patent application Ser. No. 60/095,710 filed Aug. 7, 1998, and incorporated herein by reference. In this method of navigation, the operating region in the patient is viewed on two planar fluoroscopic images of the operating region. The physician identifies the current position of the atherectomy device on each display, for example by using a mouse or similar device to point and click on the desired location. Similarly the physician can identify the desired new position of the atherectomy device on each display. A computer can control an electromagnetic system for generating an electromagnetic field and/or gradient for orienting and/or moving the distal end of the atherectomy device as input by the physician. The distal end of the atherectomy device is advanced manually or automatically, or in some cases it can be moved by a magnetic field or gradient. In this manner, the atherectomy device can be magnetically directed to the site of the occlusion without a guide wire, and once at the site of the occlusion can be magnetically manipulated to remove the material blocking the vessel or lumen.

Claims (27)

1. A device for removing material from the surface of body lumens and cavities, the device comprising:
a cutting head; and
a magnet associated with the cutting head, the magnet of sufficient size to allow the cutting head to be oriented by an externally applied magnetic field.
2. The device according to claim 1 wherein the magnet comprises a portion of the cutting head made from a magnetically permeable or permanent magnetic material.
3. The device according to claim 1 further comprising a flexible drive shaft having a proximal and a distal end, with the cutting device on the distal end, and wherein the magnet comprises a portion of the flexible drive shaft being made of a magnetically permeable or permanent magnetic material.
4. The device according to claim 1 wherein the magnet is a magnetically permeable or permanent magnetic material disposed between the cutting head and the flexible drive shaft.
5. The device according to claim 1 further comprising a sheath, over the drive shaft, and wherein the magnet is on the distal end of the sheath.
6. The device according to claim 1 further comprising a generally axially extending passage through the cutting head and the drive shaft for accommodating a guide wire.
7. A method of removing material from the surface of a body lumen or cavity, the method comprising:
introducing a guide wire having magnetic material at its distal end into the body lumen or cavity, and navigating the guide wire to the site of the material to be removed by successively applying a magnetic field to orient the distal end of the guide wire and advancing the guide wire in the lumen or cavity to the site of the material to be removed;
advancing a tool having a cutting head for removing the material, along the guide wire to the site of the material, and
operating the cutting head to remove the material from the walls of the blood vessel.
8. The method according to claim 7 wherein the step of advancing the guide wire comprises applying a magnetic field gradient to the distal end of the guide wire to apply a motive force to move the distal end of the guide wire.
9. The method according to claim 7 wherein the step of operating the cutting head to remove the material comprises advancing the tool over the guide wire into close proximity with the magnetic material, and applying a magnetic field to the magnetic material to orient the cutting head of the tool.
10. The method according to claim 7 wherein the step of operating the cutting head to remove the material comprises advancing the tool over the guide wire into close proximity with the magnetic material, and applying a magnetic gradient to the magnetic material to move the cutting head toward the material in the lumen or cavity.
11. The method according to claim 7 wherein the step of operating the cutting head to remove the material comprises advancing the tool over the guide wire into close proximity with the magnetic material, and applying a magnetic field to orient the cutting head and a magnetic gradient to move the cutting head toward the material in the lumen or cavity.
12. A method of removing material from the surface of a body lumen or cavity, the method comprising:
introducing a guide wire having magnetic material at its distal end into the body lumen or cavity, and navigating the guide wire to the site of the material to be removed;
advancing a tool having a cutting head for removing the material, along the guide wire to the site of the material and into close proximity with the magnetic material; and
operating the cutting head to remove the material from the walls of the lumen or cavity by applying at least a magnetic field to orient the cutting head or a magnetic gradient to move the cutting head within the lumen or cavity.
13. The method according to claim 12 wherein the step of operating the cutting head to remove the material comprises applying a magnetic field to the magnetic material to orient the cutting head of the tool toward the material in the lumen or cavity.
14. The method according to claim 12 wherein the step of operating the cutting head to remove the material comprises applying a magnetic gradient to the magnetic material to move the cutting head toward the material in the lumen or cavity.
15. The method according to claim 12 wherein the step of operating the cutting head to remove the material comprises applying both a magnetic field to orient the cutting head and a magnetic gradient to move the cutting head toward the material in the lumen or cavity.
16. A method of removing material from the walls of a body lumen or cavity, comprising:
introducing a tool having a cutting head on its distal end and a magnet associated with the cutting head into the lumen or cavity, and navigating the tool to the site of the material to be removed by successively applying a magnetic field to orient the distal end of tool and advancing the tool in the lumen or cavity to the site of the material to be removed; and
operating the cutting head to remove the material from the surface of the lumen or cavity.
17. The method according to claim 16 wherein the step of advancing the tool comprises applying a magnetic field gradient to the distal end of the tool to apply a motive force to move the distal end of the tool.
18. The method according to claim 16 wherein the step of operating the cutting head to remove the material comprises applying a magnetic field to the magnet associated with the cutting head to orient the cutting head of the tool.
19. The method according to claim 16 wherein the step of operating the cutting head to remove the material comprises applying a magnetic field gradient to the magnetic material associated with the cutting head to move the cutting head within the lumen or cavity.
20. The method according to claim 16 wherein the magnet associated with the cutting head is at least a part of the cutting head made of a magnetic material.
21. A method of removing material from the walls of a body lumen or cavity, comprising:
introducing a tool having a cutting head on its distal end and a magnet associated with the cutting head into the lumen or cavity, and navigating the tool to the site of the material to be removed;
operating the cutting head to remove the material from the surface of the lumen or cavity by applying at least a magnetic field to orient the cutting head or a magnetic gradient to move the cutting head within the lumen or cavity.
22. The method according to claim 23 wherein the step of operating the cutting head to remove the material comprises applying a magnetic field to the magnet associated with the cutting head to orient the cutting head of the tool.
23. The method according to claim 23 wherein the step of operating the cutting head to remove the material comprises applying a magnetic gradient to the magnetic material associated with the cutting head to move the cutting head within the lumen or cavity.
24. The method according to claim 23 wherein the step of operating the cutting head to remove the material comprises applying both a magnetic field to orient the cutting head and a magnetic gradient to move the cutting head toward the material in the lumen or cavity.
25. The method according to claim 21 further comprising the step of applying a continuously changing magnetic field to precess the cutting head within the lumen or cavity.
26. The method according to claim 25 wherein the step of applying a continuously changing magnetic field is done with a computer controlled magnet.
27. The method according to claim 21 further comprising the step of applying a continuously changing magnetic gradient to move the cutting head within the lumen or cavity.
US10/852,304 1998-10-02 2004-05-24 Magnetically navigable and/or controllable device for removing material from body lumens and cavities Abandoned US20050004585A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/852,304 US20050004585A1 (en) 1998-10-02 2004-05-24 Magnetically navigable and/or controllable device for removing material from body lumens and cavities

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16569498A 1998-10-02 1998-10-02
US09/281,241 US6428551B1 (en) 1999-03-30 1999-03-30 Magnetically navigable and/or controllable device for removing material from body lumens and cavities
US10/212,458 US6740103B2 (en) 1998-10-02 2002-08-05 Magnetically navigable and/or controllable device for removing material from body lumens and cavities
US10/852,304 US20050004585A1 (en) 1998-10-02 2004-05-24 Magnetically navigable and/or controllable device for removing material from body lumens and cavities

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/212,458 Continuation US6740103B2 (en) 1998-10-02 2002-08-05 Magnetically navigable and/or controllable device for removing material from body lumens and cavities

Publications (1)

Publication Number Publication Date
US20050004585A1 true US20050004585A1 (en) 2005-01-06

Family

ID=26861625

Family Applications (3)

Application Number Title Priority Date Filing Date
US09/951,129 Expired - Fee Related US6733511B2 (en) 1998-10-02 2001-09-12 Magnetically navigable and/or controllable device for removing material from body lumens and cavities
US10/212,458 Expired - Fee Related US6740103B2 (en) 1998-10-02 2002-08-05 Magnetically navigable and/or controllable device for removing material from body lumens and cavities
US10/852,304 Abandoned US20050004585A1 (en) 1998-10-02 2004-05-24 Magnetically navigable and/or controllable device for removing material from body lumens and cavities

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US09/951,129 Expired - Fee Related US6733511B2 (en) 1998-10-02 2001-09-12 Magnetically navigable and/or controllable device for removing material from body lumens and cavities
US10/212,458 Expired - Fee Related US6740103B2 (en) 1998-10-02 2002-08-05 Magnetically navigable and/or controllable device for removing material from body lumens and cavities

Country Status (5)

Country Link
US (3) US6733511B2 (en)
EP (1) EP1119299A1 (en)
JP (1) JP2002526148A (en)
AU (1) AU6279299A (en)
WO (1) WO2000019917A1 (en)

Cited By (125)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040169316A1 (en) * 2002-03-28 2004-09-02 Siliconix Taiwan Ltd. Encapsulation method and leadframe for leadless semiconductor packages
US20050113812A1 (en) * 2003-09-16 2005-05-26 Viswanathan Raju R. User interface for remote control of medical devices
US20060270915A1 (en) * 2005-01-11 2006-11-30 Ritter Rogers C Navigation using sensed physiological data as feedback
US20070016131A1 (en) * 2005-07-12 2007-01-18 Munger Gareth T Flexible magnets for navigable medical devices
US20070060966A1 (en) * 2005-07-11 2007-03-15 Carlo Pappone Method of treating cardiac arrhythmias
US20070060829A1 (en) * 2005-07-21 2007-03-15 Carlo Pappone Method of finding the source of and treating cardiac arrhythmias
US20070060962A1 (en) * 2005-07-26 2007-03-15 Carlo Pappone Apparatus and methods for cardiac resynchronization therapy and cardiac contractility modulation
US20070060992A1 (en) * 2005-06-02 2007-03-15 Carlo Pappone Methods and devices for mapping the ventricle for pacing lead placement and therapy delivery
US20070062547A1 (en) * 2005-07-21 2007-03-22 Carlo Pappone Systems for and methods of tissue ablation
US20070123964A1 (en) * 2003-01-21 2007-05-31 Baylis Medical Company Magnetically guidable energy delivery apparatus and method of using same
US20070149946A1 (en) * 2005-12-07 2007-06-28 Viswanathan Raju R Advancer system for coaxial medical devices
US20070146106A1 (en) * 1999-10-04 2007-06-28 Creighton Francis M Iv Rotating and pivoting magnet for magnetic navigation
US20070161882A1 (en) * 2006-01-06 2007-07-12 Carlo Pappone Electrophysiology catheter and system for gentle and firm wall contact
US20070167720A1 (en) * 2005-12-06 2007-07-19 Viswanathan Raju R Smart card control of medical devices
US20070197906A1 (en) * 2006-01-24 2007-08-23 Ritter Rogers C Magnetic field shape-adjustable medical device and method of using the same
US20070197899A1 (en) * 2006-01-17 2007-08-23 Ritter Rogers C Apparatus and method for magnetic navigation using boost magnets
US20070250041A1 (en) * 2006-04-19 2007-10-25 Werp Peter R Extendable Interventional Medical Devices
US20070287909A1 (en) * 1998-08-07 2007-12-13 Stereotaxis, Inc. Method and apparatus for magnetically controlling catheters in body lumens and cavities
US20080004644A1 (en) * 2006-06-30 2008-01-03 Atheromed, Inc. Atherectomy devices and methods
US20080015670A1 (en) * 2006-01-17 2008-01-17 Carlo Pappone Methods and devices for cardiac ablation
US20080016677A1 (en) * 2002-01-23 2008-01-24 Stereotaxis, Inc. Rotating and pivoting magnet for magnetic navigation
US20080039830A1 (en) * 2006-08-14 2008-02-14 Munger Gareth T Method and Apparatus for Ablative Recanalization of Blocked Vasculature
US20080045986A1 (en) * 2006-06-30 2008-02-21 Atheromed, Inc. Atherectomy devices and methods
US20080047568A1 (en) * 1999-10-04 2008-02-28 Ritter Rogers C Method for Safely and Efficiently Navigating Magnetic Devices in the Body
US20080059598A1 (en) * 2006-09-06 2008-03-06 Garibaldi Jeffrey M Coordinated Control for Multiple Computer-Controlled Medical Systems
US20080055239A1 (en) * 2006-09-06 2008-03-06 Garibaldi Jeffrey M Global Input Device for Multiple Computer-Controlled Medical Systems
US20080058609A1 (en) * 2006-09-06 2008-03-06 Stereotaxis, Inc. Workflow driven method of performing multi-step medical procedures
US20080065124A1 (en) * 1999-08-19 2008-03-13 Foxhollow Technologies, Inc. High capacity debulking catheter with razor edge cutting window
US20080064969A1 (en) * 2006-09-11 2008-03-13 Nathan Kastelein Automated Mapping of Anatomical Features of Heart Chambers
US20080065061A1 (en) * 2006-09-08 2008-03-13 Viswanathan Raju R Impedance-Based Cardiac Therapy Planning Method with a Remote Surgical Navigation System
US20080077007A1 (en) * 2002-06-28 2008-03-27 Hastings Roger N Method of Navigating Medical Devices in the Presence of Radiopaque Material
US20080097200A1 (en) * 2006-10-20 2008-04-24 Blume Walter M Location and Display of Occluded Portions of Vessels on 3-D Angiographic Images
US20080132910A1 (en) * 2006-11-07 2008-06-05 Carlo Pappone Control for a Remote Navigation System
US20080200913A1 (en) * 2007-02-07 2008-08-21 Viswanathan Raju R Single Catheter Navigation for Diagnosis and Treatment of Arrhythmias
US20080208912A1 (en) * 2007-02-26 2008-08-28 Garibaldi Jeffrey M System and method for providing contextually relevant medical information
US20080228065A1 (en) * 2007-03-13 2008-09-18 Viswanathan Raju R System and Method for Registration of Localization and Imaging Systems for Navigational Control of Medical Devices
US20080228068A1 (en) * 2007-03-13 2008-09-18 Viswanathan Raju R Automated Surgical Navigation with Electro-Anatomical and Pre-Operative Image Data
US20080287909A1 (en) * 2007-05-17 2008-11-20 Viswanathan Raju R Method and apparatus for intra-chamber needle injection treatment
US20080294232A1 (en) * 2007-05-22 2008-11-27 Viswanathan Raju R Magnetic cell delivery
US20080292901A1 (en) * 2007-05-24 2008-11-27 Hon Hai Precision Industry Co., Ltd. Magnesium alloy and thin workpiece made of the same
US20080312673A1 (en) * 2007-06-05 2008-12-18 Viswanathan Raju R Method and apparatus for CTO crossing
US20090012821A1 (en) * 2007-07-06 2009-01-08 Guy Besson Management of live remote medical display
US20090018565A1 (en) * 2006-06-30 2009-01-15 Artheromed, Inc. Atherectomy devices, systems, and methods
US20090018566A1 (en) * 2006-06-30 2009-01-15 Artheromed, Inc. Atherectomy devices, systems, and methods
US20090018567A1 (en) * 2006-06-30 2009-01-15 Artheromed, Inc. Atherectomy devices, systems, and methods
US20090024085A1 (en) * 2006-06-30 2009-01-22 Artheromed, Inc Atherectomy devices, systems, and methods
WO2009029523A1 (en) * 2007-08-24 2009-03-05 Boston Scientific Scimed, Inc. Magnetically steerable catheter assembly
US20090062646A1 (en) * 2005-07-07 2009-03-05 Creighton Iv Francis M Operation of a remote medical navigation system using ultrasound image
US20090082722A1 (en) * 2007-08-21 2009-03-26 Munger Gareth T Remote navigation advancer devices and methods of use
US20090131927A1 (en) * 2007-11-20 2009-05-21 Nathan Kastelein Method and apparatus for remote detection of rf ablation
US20090177032A1 (en) * 1999-04-14 2009-07-09 Garibaldi Jeffrey M Method and apparatus for magnetically controlling endoscopes in body lumens and cavities
US20090177037A1 (en) * 2007-06-27 2009-07-09 Viswanathan Raju R Remote control of medical devices using real time location data
US20090216180A1 (en) * 2008-02-25 2009-08-27 Fox Hollow Technologies, Inc. Methods and devices for cutting tissue
US20090234378A1 (en) * 2007-10-22 2009-09-17 Atheromed, Inc. Atherectomy devices and methods
US20090306643A1 (en) * 2008-02-25 2009-12-10 Carlo Pappone Method and apparatus for delivery and detection of transmural cardiac ablation lesions
US20100049225A1 (en) * 2007-10-22 2010-02-25 Atheromed, Inc. Atherectomy devices and methods
US20100069733A1 (en) * 2008-09-05 2010-03-18 Nathan Kastelein Electrophysiology catheter with electrode loop
US20100163061A1 (en) * 2000-04-11 2010-07-01 Creighton Francis M Magnets with varying magnetization direction and method of making such magnets
US7772950B2 (en) 2005-08-10 2010-08-10 Stereotaxis, Inc. Method and apparatus for dynamic magnetic field control using multiple magnets
US20100222669A1 (en) * 2006-08-23 2010-09-02 William Flickinger Medical device guide
US7818076B2 (en) 2005-07-26 2010-10-19 Stereotaxis, Inc. Method and apparatus for multi-system remote surgical navigation from a single control center
US20100298845A1 (en) * 2009-05-25 2010-11-25 Kidd Brian L Remote manipulator device
US20100312263A1 (en) * 2009-04-29 2010-12-09 Fox Hollow Technologies, Inc. Methods and devices for cutting and abrading tissue
US20110022029A1 (en) * 2004-12-20 2011-01-27 Viswanathan Raju R Contact over-torque with three-dimensional anatomical data
US20110033100A1 (en) * 2005-02-07 2011-02-10 Viswanathan Raju R Registration of three-dimensional image data to 2d-image-derived data
US20110046618A1 (en) * 2009-08-04 2011-02-24 Minar Christopher D Methods and systems for treating occluded blood vessels and other body cannula
US20110112563A1 (en) * 2006-06-30 2011-05-12 Atheromed, Inc. Atherectomy devices and methods
US20110130718A1 (en) * 2009-05-25 2011-06-02 Kidd Brian L Remote Manipulator Device
US7961924B2 (en) 2006-08-21 2011-06-14 Stereotaxis, Inc. Method of three-dimensional device localization using single-plane imaging
US8007506B2 (en) 2006-06-30 2011-08-30 Atheromed, Inc. Atherectomy devices and methods
US8192452B2 (en) 2009-05-14 2012-06-05 Tyco Healthcare Group Lp Easily cleaned atherectomy catheters and methods of use
US8196590B2 (en) 2003-05-02 2012-06-12 Stereotaxis, Inc. Variable magnetic moment MR navigation
US8226674B2 (en) 2000-12-20 2012-07-24 Tyco Healthcare Group Lp Debulking catheters and methods
US8231618B2 (en) 2007-11-05 2012-07-31 Stereotaxis, Inc. Magnetically guided energy delivery apparatus
US20120197276A1 (en) * 2004-03-26 2012-08-02 Henry William Lupton Guide wire for use in re-canalising a vascular occlusion in a human or animal subject
US8242972B2 (en) 2006-09-06 2012-08-14 Stereotaxis, Inc. System state driven display for medical procedures
US8246640B2 (en) 2003-04-22 2012-08-21 Tyco Healthcare Group Lp Methods and devices for cutting tissue at a vascular location
US8308628B2 (en) 2009-11-02 2012-11-13 Pulse Therapeutics, Inc. Magnetic-based systems for treating occluded vessels
US8361094B2 (en) 2006-06-30 2013-01-29 Atheromed, Inc. Atherectomy devices and methods
US8414604B2 (en) 2008-10-13 2013-04-09 Covidien Lp Devices and methods for manipulating a catheter shaft
US8469979B2 (en) 2000-12-20 2013-06-25 Covidien Lp High capacity debulking catheter with distal driven cutting wheel
US8496677B2 (en) 2009-12-02 2013-07-30 Covidien Lp Methods and devices for cutting tissue
US8597315B2 (en) 1999-08-19 2013-12-03 Covidien Lp Atherectomy catheter with first and second imaging devices
US8795306B2 (en) 2011-10-13 2014-08-05 Atheromed, Inc. Atherectomy apparatus, systems and methods
US8808186B2 (en) 2010-11-11 2014-08-19 Covidien Lp Flexible debulking catheters with imaging and methods of use and manufacture
US8920450B2 (en) 2010-10-28 2014-12-30 Covidien Lp Material removal device and method of use
US8992717B2 (en) 2011-09-01 2015-03-31 Covidien Lp Catheter with helical drive shaft and methods of manufacture
US8998937B2 (en) 1999-08-19 2015-04-07 Covidien Lp Methods and devices for cutting tissue
US9028512B2 (en) 2009-12-11 2015-05-12 Covidien Lp Material removal device having improved material capture efficiency and methods of use
US9119662B2 (en) 2010-06-14 2015-09-01 Covidien Lp Material removal device and method of use
US9532844B2 (en) 2012-09-13 2017-01-03 Covidien Lp Cleaning device for medical instrument and method of use
US9883878B2 (en) 2012-05-15 2018-02-06 Pulse Therapeutics, Inc. Magnetic-based systems and methods for manipulation of magnetic particles
US9974930B2 (en) 2005-03-24 2018-05-22 Brivant Research & Development Limited Guide wire for use in re-canalising a vascular occlusion in a human or animal subject
US20180242999A1 (en) * 2017-02-28 2018-08-30 Angiosafe, Inc. Device and method for centering and crossing a vascular occlusion
US10213224B2 (en) 2014-06-27 2019-02-26 Covidien Lp Cleaning device for catheter and catheter including the same
US10292721B2 (en) 2015-07-20 2019-05-21 Covidien Lp Tissue-removing catheter including movable distal tip
US10314664B2 (en) 2015-10-07 2019-06-11 Covidien Lp Tissue-removing catheter and tissue-removing element with depth stop
US10314667B2 (en) 2015-03-25 2019-06-11 Covidien Lp Cleaning device for cleaning medical instrument
US11207096B2 (en) 2006-06-30 2021-12-28 Atheromed, Inc. Devices systems and methods for cutting and removing occlusive material from a body lumen
US11304723B1 (en) 2020-12-17 2022-04-19 Avantec Vascular Corporation Atherectomy devices that are self-driving with controlled deflection
US11660137B2 (en) 2006-09-29 2023-05-30 Boston Scientific Medical Device Limited Connector system for electrosurgical device
US11684447B2 (en) 2012-05-31 2023-06-27 Boston Scientific Medical Device Limited Radiofrequency perforation apparatus
US11724070B2 (en) 2019-12-19 2023-08-15 Boston Scientific Medical Device Limited Methods for determining a position of a first medical device with respect to a second medical device, and related systems and medical devices
US11744638B2 (en) 2006-09-29 2023-09-05 Boston Scientific Medical Device Limited Electrosurgical device
US11759190B2 (en) 2019-10-18 2023-09-19 Boston Scientific Medical Device Limited Lock for medical devices, and related systems and methods
US11766290B2 (en) 2015-09-09 2023-09-26 Boston Scientific Medical Device Limited Epicardial access system and methods
US11793446B2 (en) 2020-06-17 2023-10-24 Boston Scientific Medical Device Limited Electroanatomical mapping system with visualization of energy-delivery and elongated needle assemblies
US11801087B2 (en) 2019-11-13 2023-10-31 Boston Scientific Medical Device Limited Apparatus and methods for puncturing tissue
US11819243B2 (en) 2020-03-19 2023-11-21 Boston Scientific Medical Device Limited Medical sheath and related systems and methods
US11826075B2 (en) 2020-04-07 2023-11-28 Boston Scientific Medical Device Limited Elongated medical assembly
US11878131B2 (en) 2017-12-05 2024-01-23 Boston Scientific Medical Device Limited Transseptal guide wire puncture system
US11918315B2 (en) 2018-05-03 2024-03-05 Pulse Therapeutics, Inc. Determination of structure and traversal of occlusions using magnetic particles
US11931098B2 (en) 2020-02-19 2024-03-19 Boston Scientific Medical Device Limited System and method for carrying out a medical procedure
US11937873B2 (en) 2013-03-12 2024-03-26 Boston Scientific Medical Device Limited Electrosurgical device having a lumen
US11938285B2 (en) 2020-06-17 2024-03-26 Boston Scientific Medical Device Limited Stop-movement device for elongated medical assembly
US11937796B2 (en) 2020-06-18 2024-03-26 Boston Scientific Medical Device Limited Tissue-spreader assembly
US11980412B2 (en) 2020-09-15 2024-05-14 Boston Scientific Medical Device Limited Elongated medical sheath
US11986209B2 (en) 2020-02-25 2024-05-21 Boston Scientific Medical Device Limited Methods and devices for creation of communication between aorta and left atrium
US11998238B2 (en) 2013-08-07 2024-06-04 Boston Scientific Medical Device Limited Methods and devices for puncturing tissue
US12005202B2 (en) 2020-08-07 2024-06-11 Boston Scientific Medical Device Limited Catheter having tissue-engaging device
US12011210B2 (en) 2013-03-15 2024-06-18 Boston Scientific Medical Device Limited Electrosurgical device having a distal aperture
US12011279B2 (en) 2020-04-07 2024-06-18 Boston Scientific Medical Device Limited Electro-anatomic mapping system
US12042178B2 (en) 2020-07-21 2024-07-23 Boston Scientific Medical Device Limited System of medical devices and method for pericardial puncture
US12082792B2 (en) 2020-02-25 2024-09-10 Boston Scientific Medical Device Limited Systems and methods for creating a puncture between aorta and the left atrium
US12128199B2 (en) 2016-01-07 2024-10-29 Boston Scientific Medical Device Limited Hybrid transseptal dilator and methods of using the same

Families Citing this family (115)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6703418B2 (en) * 1991-02-26 2004-03-09 Unimed Pharmaceuticals, Inc. Appetite stimulation and induction of weight gain in patients suffering from symptomatic HIV infection
US7066924B1 (en) * 1997-11-12 2006-06-27 Stereotaxis, Inc. Method of and apparatus for navigating medical devices in body lumens by a guide wire with a magnetic tip
US6505062B1 (en) * 1998-02-09 2003-01-07 Stereotaxis, Inc. Method for locating magnetic implant by source field
US6401723B1 (en) * 2000-02-16 2002-06-11 Stereotaxis, Inc. Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments
US6524303B1 (en) * 2000-09-08 2003-02-25 Stereotaxis, Inc. Variable stiffness magnetic catheter
EP1389958B1 (en) * 2001-05-06 2008-10-29 Stereotaxis, Inc. System for advancing a catheter
US7635342B2 (en) * 2001-05-06 2009-12-22 Stereotaxis, Inc. System and methods for medical device advancement and rotation
US7766856B2 (en) * 2001-05-06 2010-08-03 Stereotaxis, Inc. System and methods for advancing a catheter
US7769427B2 (en) * 2002-07-16 2010-08-03 Magnetics, Inc. Apparatus and method for catheter guidance control and imaging
WO2004045387A2 (en) 2002-11-18 2004-06-03 Stereotaxis, Inc. Magnetically navigable balloon catheters
US20040225233A1 (en) * 2003-05-09 2004-11-11 Frankowski Brian J. Magnetic guidewires
US6980843B2 (en) * 2003-05-21 2005-12-27 Stereotaxis, Inc. Electrophysiology catheter
US20050075561A1 (en) * 2003-10-01 2005-04-07 Lucent Medical Systems, Inc. Method and apparatus for indicating an encountered obstacle during insertion of a medical device
US7280863B2 (en) * 2003-10-20 2007-10-09 Magnetecs, Inc. System and method for radar-assisted catheter guidance and control
DE102004015641B3 (en) * 2004-03-31 2006-03-09 Siemens Ag Device for elimination of complete occlusion with IVUS monitoring
US7516416B2 (en) 2004-06-04 2009-04-07 Stereotaxis, Inc. User interface for remote control of medical devices
US20060036163A1 (en) * 2004-07-19 2006-02-16 Viswanathan Raju R Method of, and apparatus for, controlling medical navigation systems
US20080006280A1 (en) * 2004-07-20 2008-01-10 Anthony Aliberto Magnetic navigation maneuvering sheath
US20060144407A1 (en) * 2004-07-20 2006-07-06 Anthony Aliberto Magnetic navigation manipulation apparatus
US20060144408A1 (en) * 2004-07-23 2006-07-06 Ferry Steven J Micro-catheter device and method of using same
EP1781174A4 (en) * 2004-08-16 2009-08-05 Corindus Ltd Image-guided navigation for catheter-based interventions
US7831294B2 (en) * 2004-10-07 2010-11-09 Stereotaxis, Inc. System and method of surgical imagining with anatomical overlay for navigation of surgical devices
US7742803B2 (en) * 2005-05-06 2010-06-22 Stereotaxis, Inc. Voice controlled user interface for remote navigation systems
WO2006121974A2 (en) * 2005-05-06 2006-11-16 Stereotaxis, Inc. User interfaces and navigation methods for vascular navigation
EP1896114B1 (en) * 2005-05-10 2017-07-12 Corindus Inc. User interface for remote control catheterization
US8027714B2 (en) * 2005-05-27 2011-09-27 Magnetecs, Inc. Apparatus and method for shaped magnetic field control for catheter, guidance, control, and imaging
US20070062546A1 (en) * 2005-06-02 2007-03-22 Viswanathan Raju R Electrophysiology catheter and system for gentle and firm wall contact
US20070038065A1 (en) * 2005-07-07 2007-02-15 Creighton Francis M Iv Operation of a remote medical navigation system using ultrasound image
US20070021744A1 (en) * 2005-07-07 2007-01-25 Creighton Francis M Iv Apparatus and method for performing ablation with imaging feedback
US7603905B2 (en) * 2005-07-08 2009-10-20 Stereotaxis, Inc. Magnetic navigation and imaging system
US7690619B2 (en) * 2005-07-12 2010-04-06 Stereotaxis, Inc. Apparatus for pivotally orienting a projection device
US7416335B2 (en) * 2005-07-15 2008-08-26 Sterotaxis, Inc. Magnetically shielded x-ray tube
US8192374B2 (en) * 2005-07-18 2012-06-05 Stereotaxis, Inc. Estimation of contact force by a medical device
US20070040670A1 (en) * 2005-07-26 2007-02-22 Viswanathan Raju R System and network for remote medical procedures
US20070043455A1 (en) * 2005-07-26 2007-02-22 Viswanathan Raju R Apparatus and methods for automated sequential movement control for operation of a remote navigation system
US8784336B2 (en) 2005-08-24 2014-07-22 C. R. Bard, Inc. Stylet apparatuses and methods of manufacture
US20070049909A1 (en) * 2005-08-26 2007-03-01 Munger Gareth T Magnetically enabled optical ablation device
US20070055124A1 (en) * 2005-09-01 2007-03-08 Viswanathan Raju R Method and system for optimizing left-heart lead placement
EP1928337B1 (en) * 2005-09-29 2012-11-21 Corindus Inc. Apparatus for treatment of hollow organs
US7525309B2 (en) 2005-12-30 2009-04-28 Depuy Products, Inc. Magnetic sensor array
US20070167741A1 (en) * 2005-12-30 2007-07-19 Sherman Jason T Apparatus and method for registering a bone of a patient with a computer assisted orthopaedic surgery system
US8862200B2 (en) * 2005-12-30 2014-10-14 DePuy Synthes Products, LLC Method for determining a position of a magnetic source
US20070161888A1 (en) * 2005-12-30 2007-07-12 Sherman Jason T System and method for registering a bone of a patient with a computer assisted orthopaedic surgery system
US7869854B2 (en) * 2006-02-23 2011-01-11 Magnetecs, Inc. Apparatus for magnetically deployable catheter with MOSFET sensor and method for mapping and ablation
US20080015427A1 (en) * 2006-06-30 2008-01-17 Nathan Kastelein System and network for remote medical procedures
GB0613981D0 (en) * 2006-07-13 2006-08-23 Shturman Leonid
GB0613980D0 (en) 2006-07-13 2006-08-23 Shturman Leonid Rotational Atherectomy Device with Fluid Inflatable Elements supported by Fluid Bearings
US7794407B2 (en) 2006-10-23 2010-09-14 Bard Access Systems, Inc. Method of locating the tip of a central venous catheter
US8388546B2 (en) 2006-10-23 2013-03-05 Bard Access Systems, Inc. Method of locating the tip of a central venous catheter
US8068648B2 (en) * 2006-12-21 2011-11-29 Depuy Products, Inc. Method and system for registering a bone of a patient with a computer assisted orthopaedic surgery system
US20080249395A1 (en) * 2007-04-06 2008-10-09 Yehoshua Shachar Method and apparatus for controlling catheter positioning and orientation
US20090131798A1 (en) * 2007-11-19 2009-05-21 Minar Christopher D Method and apparatus for intravascular imaging and occlusion crossing
EP3202318B1 (en) 2007-11-26 2020-10-21 C.R. Bard, Inc. Integrated system for intravascular placement of a catheter
US10449330B2 (en) 2007-11-26 2019-10-22 C. R. Bard, Inc. Magnetic element-equipped needle assemblies
US8781555B2 (en) 2007-11-26 2014-07-15 C. R. Bard, Inc. System for placement of a catheter including a signal-generating stylet
US10524691B2 (en) 2007-11-26 2020-01-07 C. R. Bard, Inc. Needle assembly including an aligned magnetic element
US10751509B2 (en) 2007-11-26 2020-08-25 C. R. Bard, Inc. Iconic representations for guidance of an indwelling medical device
US9521961B2 (en) 2007-11-26 2016-12-20 C. R. Bard, Inc. Systems and methods for guiding a medical instrument
US8849382B2 (en) 2007-11-26 2014-09-30 C. R. Bard, Inc. Apparatus and display methods relating to intravascular placement of a catheter
US9649048B2 (en) 2007-11-26 2017-05-16 C. R. Bard, Inc. Systems and methods for breaching a sterile field for intravascular placement of a catheter
US8118845B2 (en) * 2008-02-01 2012-02-21 William M White Apparatus and procedure for anterior cervical microdiskectomy
US8478382B2 (en) 2008-02-11 2013-07-02 C. R. Bard, Inc. Systems and methods for positioning a catheter
US20090275828A1 (en) * 2008-05-01 2009-11-05 Magnetecs, Inc. Method and apparatus for creating a high resolution map of the electrical and mechanical properties of the heart
EP3858416B1 (en) 2008-05-06 2023-11-01 Corindus, Inc. Catheter system
EP2313143B1 (en) 2008-08-22 2014-09-24 C.R. Bard, Inc. Catheter assembly including ecg sensor and magnetic assemblies
EP2320990B2 (en) * 2008-08-29 2023-05-31 Corindus, Inc. Catheter control system and graphical user interface
WO2010025336A1 (en) * 2008-08-29 2010-03-04 Corindus Ltd. Catheter simulation and assistance system
US8437833B2 (en) 2008-10-07 2013-05-07 Bard Access Systems, Inc. Percutaneous magnetic gastrostomy
US8457714B2 (en) * 2008-11-25 2013-06-04 Magnetecs, Inc. System and method for a catheter impedance seeking device
WO2010068783A1 (en) 2008-12-12 2010-06-17 Corindus Inc. Remote catheter procedure system
WO2010107916A1 (en) 2009-03-18 2010-09-23 Corindus Inc. Remote catheter system with steerable catheter
US9532724B2 (en) 2009-06-12 2017-01-03 Bard Access Systems, Inc. Apparatus and method for catheter navigation using endovascular energy mapping
JP5795576B2 (en) 2009-06-12 2015-10-14 バード・アクセス・システムズ，インコーポレーテッド Method of operating a computer-based medical device that uses an electrocardiogram (ECG) signal to position an intravascular device in or near the heart
WO2011019760A2 (en) 2009-08-10 2011-02-17 Romedex International Srl Devices and methods for endovascular electrography
CN102665541B (en) 2009-09-29 2016-01-13 C·R·巴德股份有限公司 The probe used together with the equipment that the Ink vessel transfusing for conduit is placed
US11103213B2 (en) 2009-10-08 2021-08-31 C. R. Bard, Inc. Spacers for use with an ultrasound probe
EP2488245B1 (en) 2009-10-12 2019-02-20 Corindus, Inc. Catheter system with percutaneous device movement algorithm
US9962229B2 (en) 2009-10-12 2018-05-08 Corindus, Inc. System and method for navigating a guide wire
US20110092808A1 (en) * 2009-10-20 2011-04-21 Magnetecs, Inc. Method for acquiring high density mapping data with a catheter guidance system
US20110091853A1 (en) * 2009-10-20 2011-04-21 Magnetecs, Inc. Method for simulating a catheter guidance system for control, development and training applications
US20110112396A1 (en) * 2009-11-09 2011-05-12 Magnetecs, Inc. System and method for targeting catheter electrodes
JP2013518676A (en) 2010-02-02 2013-05-23 シー・アール・バード・インコーポレーテッド Apparatus and method for locating catheter navigation and tip
US9907567B2 (en) 2010-05-04 2018-03-06 Samuel Shiber Mechanical — pharmaceutical system for opening obstructed bodily vessels
US20150094733A1 (en) 2010-05-04 2015-04-02 Samuel Shiber Rotary catheter drive unit containing seal-sets
US10952764B2 (en) 2010-05-04 2021-03-23 Samuel Shiber Rotary catheter drive unit containing seal-sets
EP2912999B1 (en) 2010-05-28 2022-06-29 C. R. Bard, Inc. Apparatus for use with needle insertion guidance system
CN103037762B (en) 2010-05-28 2016-07-13 C·R·巴德股份有限公司 For inserting, with pin, the device that guiding system is used together
CN103228219B (en) 2010-08-09 2016-04-27 C·R·巴德股份有限公司 For support and the covered structure of ultrasound probe head
WO2012024577A2 (en) 2010-08-20 2012-02-23 C.R. Bard, Inc. Reconfirmation of ecg-assisted catheter tip placement
US9833293B2 (en) 2010-09-17 2017-12-05 Corindus, Inc. Robotic catheter system
US8801693B2 (en) 2010-10-29 2014-08-12 C. R. Bard, Inc. Bioimpedance-assisted placement of a medical device
KR20140051284A (en) 2011-07-06 2014-04-30 씨. 알. 바드, 인크. Needle length determination and calibration for insertion guidance system
USD724745S1 (en) 2011-08-09 2015-03-17 C. R. Bard, Inc. Cap for an ultrasound probe
USD699359S1 (en) 2011-08-09 2014-02-11 C. R. Bard, Inc. Ultrasound probe head
DK2744424T3 (en) * 2011-08-17 2018-01-22 Samuel Shiber Adaptively rotating catheter to open clogged vessels in the body
US9211107B2 (en) 2011-11-07 2015-12-15 C. R. Bard, Inc. Ruggedized ultrasound hydrogel insert
US20130303886A1 (en) * 2012-05-09 2013-11-14 Doron Moshe Ludwin Locating a catheter sheath end point
WO2013188833A2 (en) 2012-06-15 2013-12-19 C.R. Bard, Inc. Apparatus and methods for detection of a removable cap on an ultrasound probe
EP3073910B1 (en) 2014-02-06 2020-07-15 C.R. Bard, Inc. Systems for guidance and placement of an intravascular device
EP4285846A3 (en) 2014-03-12 2024-01-17 Boston Scientific Limited Infusion lubricated atherectomy catheter
DE102014105943A1 (en) * 2014-04-28 2015-10-29 Vossamed Gmbh & Co. Kg Device for creating cuts or perforations on the eye
EP3954317A1 (en) 2014-12-05 2022-02-16 Corindus, Inc System and method for navigating a guide wire
US10973584B2 (en) 2015-01-19 2021-04-13 Bard Access Systems, Inc. Device and method for vascular access
US9355768B1 (en) * 2015-03-05 2016-05-31 Le Etta Scherban Battery removal tool
US10349890B2 (en) 2015-06-26 2019-07-16 C. R. Bard, Inc. Connector interface for ECG-based catheter positioning system
CN105268086B (en) * 2015-11-13 2018-03-30 中国人民解放军第二军医大学 Magnetic control guiding wire system
US11000207B2 (en) 2016-01-29 2021-05-11 C. R. Bard, Inc. Multiple coil system for tracking a medical device
US10588656B2 (en) 2017-11-10 2020-03-17 Penumbra, Inc. Thrombectomy catheter
US11147582B2 (en) 2018-06-14 2021-10-19 Cardio Flow, Inc. Atherectomy devices and methods
US11272954B2 (en) 2018-08-07 2022-03-15 Cardio Flow, Inc. Atherectomy devices and methods
US10992079B2 (en) 2018-10-16 2021-04-27 Bard Access Systems, Inc. Safety-equipped connection systems and methods thereof for establishing electrical connections
KR102208265B1 (en) * 2018-12-21 2021-01-27 재단법인대구경북과학기술원 Micro-robot for steering guidewire
EP3907014A4 (en) * 2018-12-31 2022-10-05 Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) Tube body cleaning apparatus
WO2024047935A1 (en) * 2022-08-31 2024-03-07 テルモ株式会社 Computer program, information processing device, and information processing method
US12004771B1 (en) 2023-06-27 2024-06-11 Cardio Flow, Inc. Rotational atherectomy devices and methods

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4696667A (en) * 1986-03-20 1987-09-29 Helmut Masch Intravascular catheter and method
US4842579A (en) * 1984-05-14 1989-06-27 Surgical Systems & Instruments, Inc. Atherectomy device
US5047040A (en) * 1987-11-05 1991-09-10 Devices For Vascular Intervention, Inc. Atherectomy device and method
US5314407A (en) * 1986-11-14 1994-05-24 Heart Technology, Inc. Clinically practical rotational angioplasty system
US5824036A (en) * 1995-09-29 1998-10-20 Datascope Corp Stent for intraluminal grafts and device and methods for delivering and assembling same
US5989276A (en) * 1996-11-08 1999-11-23 Advanced Bypass Technologies, Inc. Percutaneous bypass graft and securing system
US6015414A (en) * 1997-08-29 2000-01-18 Stereotaxis, Inc. Method and apparatus for magnetically controlling motion direction of a mechanically pushed catheter
US6428551B1 (en) * 1999-03-30 2002-08-06 Stereotaxis, Inc. Magnetically navigable and/or controllable device for removing material from body lumens and cavities

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE336642B (en) * 1969-10-28 1971-07-12 Astra Meditec Ab
US4244362A (en) * 1978-11-29 1981-01-13 Anderson Charles C Endotracheal tube control device
US4895560A (en) * 1988-03-31 1990-01-23 Papantonakos Apostolos C Angioplasty apparatus
CA2107741C (en) * 1992-10-07 2000-06-27 Peter T. Keith Ablation devices and methods of use
US5356418A (en) * 1992-10-28 1994-10-18 Shturman Cardiology Systems, Inc. Apparatus and method for rotational atherectomy
US5334207A (en) * 1993-03-25 1994-08-02 Allen E. Coles Laser angioplasty device with magnetic direction control
CA2157697C (en) * 1995-01-10 2007-03-13 Banning Gray Lary Vascular incisor/dilator
US5845646A (en) * 1996-11-05 1998-12-08 Lemelson; Jerome System and method for treating select tissue in a living being
US6272370B1 (en) * 1998-08-07 2001-08-07 The Regents Of University Of Minnesota MR-visible medical device for neurological interventions using nonlinear magnetic stereotaxis and a method imaging

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842579A (en) * 1984-05-14 1989-06-27 Surgical Systems & Instruments, Inc. Atherectomy device
US4842579B1 (en) * 1984-05-14 1995-10-31 Surgical Systems & Instr Inc Atherectomy device
US4696667A (en) * 1986-03-20 1987-09-29 Helmut Masch Intravascular catheter and method
US5314407A (en) * 1986-11-14 1994-05-24 Heart Technology, Inc. Clinically practical rotational angioplasty system
US5047040A (en) * 1987-11-05 1991-09-10 Devices For Vascular Intervention, Inc. Atherectomy device and method
US5824036A (en) * 1995-09-29 1998-10-20 Datascope Corp Stent for intraluminal grafts and device and methods for delivering and assembling same
US5989276A (en) * 1996-11-08 1999-11-23 Advanced Bypass Technologies, Inc. Percutaneous bypass graft and securing system
US6015414A (en) * 1997-08-29 2000-01-18 Stereotaxis, Inc. Method and apparatus for magnetically controlling motion direction of a mechanically pushed catheter
US6428551B1 (en) * 1999-03-30 2002-08-06 Stereotaxis, Inc. Magnetically navigable and/or controllable device for removing material from body lumens and cavities

Cited By (222)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070287909A1 (en) * 1998-08-07 2007-12-13 Stereotaxis, Inc. Method and apparatus for magnetically controlling catheters in body lumens and cavities
US20100063385A1 (en) * 1998-08-07 2010-03-11 Garibaldi Jeffrey M Method and apparatus for magnetically controlling catheters in body lumens and cavities
US20090177032A1 (en) * 1999-04-14 2009-07-09 Garibaldi Jeffrey M Method and apparatus for magnetically controlling endoscopes in body lumens and cavities
US8597315B2 (en) 1999-08-19 2013-12-03 Covidien Lp Atherectomy catheter with first and second imaging devices
US8998937B2 (en) 1999-08-19 2015-04-07 Covidien Lp Methods and devices for cutting tissue
US9532799B2 (en) 1999-08-19 2017-01-03 Covidien Lp Method and devices for cutting tissue
US9615850B2 (en) 1999-08-19 2017-04-11 Covidien Lp Atherectomy catheter with aligned imager
US20080065124A1 (en) * 1999-08-19 2008-03-13 Foxhollow Technologies, Inc. High capacity debulking catheter with razor edge cutting window
US8328829B2 (en) 1999-08-19 2012-12-11 Covidien Lp High capacity debulking catheter with razor edge cutting window
US8911459B2 (en) 1999-08-19 2014-12-16 Covidien Lp Debulking catheters and methods
US7966059B2 (en) 1999-10-04 2011-06-21 Stereotaxis, Inc. Rotating and pivoting magnet for magnetic navigation
US20070146106A1 (en) * 1999-10-04 2007-06-28 Creighton Francis M Iv Rotating and pivoting magnet for magnetic navigation
US7771415B2 (en) 1999-10-04 2010-08-10 Stereotaxis, Inc. Method for safely and efficiently navigating magnetic devices in the body
US20080047568A1 (en) * 1999-10-04 2008-02-28 Ritter Rogers C Method for Safely and Efficiently Navigating Magnetic Devices in the Body
US7757694B2 (en) 1999-10-04 2010-07-20 Stereotaxis, Inc. Method for safely and efficiently navigating magnetic devices in the body
US20100163061A1 (en) * 2000-04-11 2010-07-01 Creighton Francis M Magnets with varying magnetization direction and method of making such magnets
US8469979B2 (en) 2000-12-20 2013-06-25 Covidien Lp High capacity debulking catheter with distal driven cutting wheel
US8226674B2 (en) 2000-12-20 2012-07-24 Tyco Healthcare Group Lp Debulking catheters and methods
US9241733B2 (en) 2000-12-20 2016-01-26 Covidien Lp Debulking catheter
US20080016677A1 (en) * 2002-01-23 2008-01-24 Stereotaxis, Inc. Rotating and pivoting magnet for magnetic navigation
US20040169316A1 (en) * 2002-03-28 2004-09-02 Siliconix Taiwan Ltd. Encapsulation method and leadframe for leadless semiconductor packages
US8060184B2 (en) 2002-06-28 2011-11-15 Stereotaxis, Inc. Method of navigating medical devices in the presence of radiopaque material
US20080077007A1 (en) * 2002-06-28 2008-03-27 Hastings Roger N Method of Navigating Medical Devices in the Presence of Radiopaque Material
US8092450B2 (en) 2003-01-21 2012-01-10 Baylis Medical Company Inc. Magnetically guidable energy delivery apparatus and method of using same
US20070123964A1 (en) * 2003-01-21 2007-05-31 Baylis Medical Company Magnetically guidable energy delivery apparatus and method of using same
US8961546B2 (en) 2003-04-22 2015-02-24 Covidien Lp Methods and devices for cutting tissue at a vascular location
US8246640B2 (en) 2003-04-22 2012-08-21 Tyco Healthcare Group Lp Methods and devices for cutting tissue at a vascular location
US9999438B2 (en) 2003-04-22 2018-06-19 Covidien Lp Methods and devices for cutting tissue at a vascular location
US8196590B2 (en) 2003-05-02 2012-06-12 Stereotaxis, Inc. Variable magnetic moment MR navigation
US20050113812A1 (en) * 2003-09-16 2005-05-26 Viswanathan Raju R. User interface for remote control of medical devices
US20120197276A1 (en) * 2004-03-26 2012-08-02 Henry William Lupton Guide wire for use in re-canalising a vascular occlusion in a human or animal subject
US9802026B2 (en) * 2004-03-26 2017-10-31 Brivant Research & Development Limited Guide wire for use in re-canalising a vascular occlusion in a human or animal subject
US20110022029A1 (en) * 2004-12-20 2011-01-27 Viswanathan Raju R Contact over-torque with three-dimensional anatomical data
US8369934B2 (en) 2004-12-20 2013-02-05 Stereotaxis, Inc. Contact over-torque with three-dimensional anatomical data
US7708696B2 (en) 2005-01-11 2010-05-04 Stereotaxis, Inc. Navigation using sensed physiological data as feedback
US20060270915A1 (en) * 2005-01-11 2006-11-30 Ritter Rogers C Navigation using sensed physiological data as feedback
US20110033100A1 (en) * 2005-02-07 2011-02-10 Viswanathan Raju R Registration of three-dimensional image data to 2d-image-derived data
US7961926B2 (en) 2005-02-07 2011-06-14 Stereotaxis, Inc. Registration of three-dimensional image data to 2D-image-derived data
US9974930B2 (en) 2005-03-24 2018-05-22 Brivant Research & Development Limited Guide wire for use in re-canalising a vascular occlusion in a human or animal subject
US20070060992A1 (en) * 2005-06-02 2007-03-15 Carlo Pappone Methods and devices for mapping the ventricle for pacing lead placement and therapy delivery
US9314222B2 (en) 2005-07-07 2016-04-19 Stereotaxis, Inc. Operation of a remote medical navigation system using ultrasound image
US20090062646A1 (en) * 2005-07-07 2009-03-05 Creighton Iv Francis M Operation of a remote medical navigation system using ultrasound image
US7769444B2 (en) 2005-07-11 2010-08-03 Stereotaxis, Inc. Method of treating cardiac arrhythmias
US20070060966A1 (en) * 2005-07-11 2007-03-15 Carlo Pappone Method of treating cardiac arrhythmias
US20070016131A1 (en) * 2005-07-12 2007-01-18 Munger Gareth T Flexible magnets for navigable medical devices
US20070060829A1 (en) * 2005-07-21 2007-03-15 Carlo Pappone Method of finding the source of and treating cardiac arrhythmias
US20070062547A1 (en) * 2005-07-21 2007-03-22 Carlo Pappone Systems for and methods of tissue ablation
US7818076B2 (en) 2005-07-26 2010-10-19 Stereotaxis, Inc. Method and apparatus for multi-system remote surgical navigation from a single control center
US20110087237A1 (en) * 2005-07-26 2011-04-14 Viswanathan Raju R Method and apparatus for multi-system remote surgical navigation from a single control center
US20070060962A1 (en) * 2005-07-26 2007-03-15 Carlo Pappone Apparatus and methods for cardiac resynchronization therapy and cardiac contractility modulation
US7772950B2 (en) 2005-08-10 2010-08-10 Stereotaxis, Inc. Method and apparatus for dynamic magnetic field control using multiple magnets
US20070167720A1 (en) * 2005-12-06 2007-07-19 Viswanathan Raju R Smart card control of medical devices
US20070149946A1 (en) * 2005-12-07 2007-06-28 Viswanathan Raju R Advancer system for coaxial medical devices
US20070179492A1 (en) * 2006-01-06 2007-08-02 Carlo Pappone Electrophysiology catheter and system for gentle and firm wall contact
US20100168549A1 (en) * 2006-01-06 2010-07-01 Carlo Pappone Electrophysiology catheter and system for gentle and firm wall contact
US20070161882A1 (en) * 2006-01-06 2007-07-12 Carlo Pappone Electrophysiology catheter and system for gentle and firm wall contact
US20070197899A1 (en) * 2006-01-17 2007-08-23 Ritter Rogers C Apparatus and method for magnetic navigation using boost magnets
US20080015670A1 (en) * 2006-01-17 2008-01-17 Carlo Pappone Methods and devices for cardiac ablation
US20070197906A1 (en) * 2006-01-24 2007-08-23 Ritter Rogers C Magnetic field shape-adjustable medical device and method of using the same
US20070250041A1 (en) * 2006-04-19 2007-10-25 Werp Peter R Extendable Interventional Medical Devices
US8361094B2 (en) 2006-06-30 2013-01-29 Atheromed, Inc. Atherectomy devices and methods
US8628549B2 (en) 2006-06-30 2014-01-14 Atheromed, Inc. Atherectomy devices, systems, and methods
US9308016B2 (en) 2006-06-30 2016-04-12 Atheromed, Inc. Devices, systems, and methods for performing atherectomy including delivery of a bioactive material
US20080004644A1 (en) * 2006-06-30 2008-01-03 Atheromed, Inc. Atherectomy devices and methods
US7981128B2 (en) 2006-06-30 2011-07-19 Atheromed, Inc. Atherectomy devices and methods
US9492193B2 (en) 2006-06-30 2016-11-15 Atheromed, Inc. Devices, systems, and methods for cutting and removing occlusive material from a body lumen
US20080045986A1 (en) * 2006-06-30 2008-02-21 Atheromed, Inc. Atherectomy devices and methods
US9492192B2 (en) 2006-06-30 2016-11-15 Atheromed, Inc. Atherectomy devices, systems, and methods
US8920448B2 (en) 2006-06-30 2014-12-30 Atheromed, Inc. Atherectomy devices and methods
US8888801B2 (en) 2006-06-30 2014-11-18 Atheromed, Inc. Atherectomy devices and methods
US9668767B2 (en) 2006-06-30 2017-06-06 Atheromed, Inc. Atherectomy devices and methods
US9675376B2 (en) 2006-06-30 2017-06-13 Atheromed, Inc. Atherectomy devices and methods
US20090018566A1 (en) * 2006-06-30 2009-01-15 Artheromed, Inc. Atherectomy devices, systems, and methods
US8007506B2 (en) 2006-06-30 2011-08-30 Atheromed, Inc. Atherectomy devices and methods
US10154854B2 (en) 2006-06-30 2018-12-18 Atheromed, Inc. Atherectomy devices and methods
US9314263B2 (en) 2006-06-30 2016-04-19 Atheromed, Inc. Atherectomy devices, systems, and methods
US10154853B2 (en) 2006-06-30 2018-12-18 Atheromed, Inc. Devices, systems, and methods for cutting and removing occlusive material from a body lumen
US10226275B2 (en) 2006-06-30 2019-03-12 Atheromed, Inc. Devices, systems, and methods for debulking restenosis of a blood vessel
US20090018565A1 (en) * 2006-06-30 2009-01-15 Artheromed, Inc. Atherectomy devices, systems, and methods
US20090024085A1 (en) * 2006-06-30 2009-01-22 Artheromed, Inc Atherectomy devices, systems, and methods
US20110112563A1 (en) * 2006-06-30 2011-05-12 Atheromed, Inc. Atherectomy devices and methods
US11207096B2 (en) 2006-06-30 2021-12-28 Atheromed, Inc. Devices systems and methods for cutting and removing occlusive material from a body lumen
US20090018567A1 (en) * 2006-06-30 2009-01-15 Artheromed, Inc. Atherectomy devices, systems, and methods
US20080039830A1 (en) * 2006-08-14 2008-02-14 Munger Gareth T Method and Apparatus for Ablative Recanalization of Blocked Vasculature
US7961924B2 (en) 2006-08-21 2011-06-14 Stereotaxis, Inc. Method of three-dimensional device localization using single-plane imaging
US20100222669A1 (en) * 2006-08-23 2010-09-02 William Flickinger Medical device guide
US8244824B2 (en) 2006-09-06 2012-08-14 Stereotaxis, Inc. Coordinated control for multiple computer-controlled medical systems
US8799792B2 (en) 2006-09-06 2014-08-05 Stereotaxis, Inc. Workflow driven method of performing multi-step medical procedures
US20080064933A1 (en) * 2006-09-06 2008-03-13 Stereotaxis, Inc. Workflow driven display for medical procedures
US20100097315A1 (en) * 2006-09-06 2010-04-22 Garibaldi Jeffrey M Global input device for multiple computer-controlled medical systems
US7747960B2 (en) 2006-09-06 2010-06-29 Stereotaxis, Inc. Control for, and method of, operating at least two medical systems
US20080059598A1 (en) * 2006-09-06 2008-03-06 Garibaldi Jeffrey M Coordinated Control for Multiple Computer-Controlled Medical Systems
US20080055239A1 (en) * 2006-09-06 2008-03-06 Garibaldi Jeffrey M Global Input Device for Multiple Computer-Controlled Medical Systems
US20080058609A1 (en) * 2006-09-06 2008-03-06 Stereotaxis, Inc. Workflow driven method of performing multi-step medical procedures
US7567233B2 (en) 2006-09-06 2009-07-28 Stereotaxis, Inc. Global input device for multiple computer-controlled medical systems
US8242972B2 (en) 2006-09-06 2012-08-14 Stereotaxis, Inc. System state driven display for medical procedures
US8806359B2 (en) 2006-09-06 2014-08-12 Stereotaxis, Inc. Workflow driven display for medical procedures
US8273081B2 (en) 2006-09-08 2012-09-25 Stereotaxis, Inc. Impedance-based cardiac therapy planning method with a remote surgical navigation system
US20080065061A1 (en) * 2006-09-08 2008-03-13 Viswanathan Raju R Impedance-Based Cardiac Therapy Planning Method with a Remote Surgical Navigation System
US7537570B2 (en) 2006-09-11 2009-05-26 Stereotaxis, Inc. Automated mapping of anatomical features of heart chambers
US20080064969A1 (en) * 2006-09-11 2008-03-13 Nathan Kastelein Automated Mapping of Anatomical Features of Heart Chambers
US11666377B2 (en) 2006-09-29 2023-06-06 Boston Scientific Medical Device Limited Electrosurgical device
US11660137B2 (en) 2006-09-29 2023-05-30 Boston Scientific Medical Device Limited Connector system for electrosurgical device
US11744638B2 (en) 2006-09-29 2023-09-05 Boston Scientific Medical Device Limited Electrosurgical device
US20080097200A1 (en) * 2006-10-20 2008-04-24 Blume Walter M Location and Display of Occluded Portions of Vessels on 3-D Angiographic Images
US8135185B2 (en) 2006-10-20 2012-03-13 Stereotaxis, Inc. Location and display of occluded portions of vessels on 3-D angiographic images
US20080132910A1 (en) * 2006-11-07 2008-06-05 Carlo Pappone Control for a Remote Navigation System
US20080200913A1 (en) * 2007-02-07 2008-08-21 Viswanathan Raju R Single Catheter Navigation for Diagnosis and Treatment of Arrhythmias
US20080208912A1 (en) * 2007-02-26 2008-08-28 Garibaldi Jeffrey M System and method for providing contextually relevant medical information
US20080228068A1 (en) * 2007-03-13 2008-09-18 Viswanathan Raju R Automated Surgical Navigation with Electro-Anatomical and Pre-Operative Image Data
US20080228065A1 (en) * 2007-03-13 2008-09-18 Viswanathan Raju R System and Method for Registration of Localization and Imaging Systems for Navigational Control of Medical Devices
US20080287909A1 (en) * 2007-05-17 2008-11-20 Viswanathan Raju R Method and apparatus for intra-chamber needle injection treatment
US20080294232A1 (en) * 2007-05-22 2008-11-27 Viswanathan Raju R Magnetic cell delivery
US20080292901A1 (en) * 2007-05-24 2008-11-27 Hon Hai Precision Industry Co., Ltd. Magnesium alloy and thin workpiece made of the same
US20080312673A1 (en) * 2007-06-05 2008-12-18 Viswanathan Raju R Method and apparatus for CTO crossing
US8024024B2 (en) 2007-06-27 2011-09-20 Stereotaxis, Inc. Remote control of medical devices using real time location data
US20090177037A1 (en) * 2007-06-27 2009-07-09 Viswanathan Raju R Remote control of medical devices using real time location data
US9111016B2 (en) 2007-07-06 2015-08-18 Stereotaxis, Inc. Management of live remote medical display
US20090012821A1 (en) * 2007-07-06 2009-01-08 Guy Besson Management of live remote medical display
US20090082722A1 (en) * 2007-08-21 2009-03-26 Munger Gareth T Remote navigation advancer devices and methods of use
US20090062789A1 (en) * 2007-08-24 2009-03-05 Boston Scientific Scimed, Inc. Magnetically steerable catheter assembly
US8394091B2 (en) 2007-08-24 2013-03-12 Boston Scientific Scimed, Inc. Magnetically steerable catheter assembly
WO2009029523A1 (en) * 2007-08-24 2009-03-05 Boston Scientific Scimed, Inc. Magnetically steerable catheter assembly
US8236016B2 (en) 2007-10-22 2012-08-07 Atheromed, Inc. Atherectomy devices and methods
US9198679B2 (en) 2007-10-22 2015-12-01 Atheromed, Inc. Atherectomy devices and methods
US8337516B2 (en) 2007-10-22 2012-12-25 Atheromed, Inc. Atherectomy devices and methods
US8070762B2 (en) 2007-10-22 2011-12-06 Atheromed Inc. Atherectomy devices and methods
US20100049225A1 (en) * 2007-10-22 2010-02-25 Atheromed, Inc. Atherectomy devices and methods
US9333007B2 (en) 2007-10-22 2016-05-10 Atheromed, Inc. Atherectomy devices and methods
US9095371B2 (en) 2007-10-22 2015-08-04 Atheromed, Inc. Atherectomy devices and methods
US20090234378A1 (en) * 2007-10-22 2009-09-17 Atheromed, Inc. Atherectomy devices and methods
US8647355B2 (en) 2007-10-22 2014-02-11 Atheromed, Inc. Atherectomy devices and methods
US8231618B2 (en) 2007-11-05 2012-07-31 Stereotaxis, Inc. Magnetically guided energy delivery apparatus
US20090131927A1 (en) * 2007-11-20 2009-05-21 Nathan Kastelein Method and apparatus for remote detection of rf ablation
US20090216180A1 (en) * 2008-02-25 2009-08-27 Fox Hollow Technologies, Inc. Methods and devices for cutting tissue
US10219824B2 (en) 2008-02-25 2019-03-05 Covidien Lp Methods and devices for cutting tissue
US9445834B2 (en) 2008-02-25 2016-09-20 Covidien Lp Methods and devices for cutting tissue
US8784440B2 (en) 2008-02-25 2014-07-22 Covidien Lp Methods and devices for cutting tissue
US20090306643A1 (en) * 2008-02-25 2009-12-10 Carlo Pappone Method and apparatus for delivery and detection of transmural cardiac ablation lesions
US20100069733A1 (en) * 2008-09-05 2010-03-18 Nathan Kastelein Electrophysiology catheter with electrode loop
US8414604B2 (en) 2008-10-13 2013-04-09 Covidien Lp Devices and methods for manipulating a catheter shaft
US9192406B2 (en) 2008-10-13 2015-11-24 Covidien Lp Method for manipulating catheter shaft
US10507037B2 (en) 2008-10-13 2019-12-17 Covidien Lp Method for manipulating catheter shaft
US20100312263A1 (en) * 2009-04-29 2010-12-09 Fox Hollow Technologies, Inc. Methods and devices for cutting and abrading tissue
US9687266B2 (en) 2009-04-29 2017-06-27 Covidien Lp Methods and devices for cutting and abrading tissue
US10555753B2 (en) 2009-04-29 2020-02-11 Covidien Lp Methods and devices for cutting and abrading tissue
US8192452B2 (en) 2009-05-14 2012-06-05 Tyco Healthcare Group Lp Easily cleaned atherectomy catheters and methods of use
US8574249B2 (en) 2009-05-14 2013-11-05 Covidien Lp Easily cleaned atherectomy catheters and methods of use
US9220530B2 (en) 2009-05-14 2015-12-29 Covidien Lp Easily cleaned atherectomy catheters and methods of use
US20100298845A1 (en) * 2009-05-25 2010-11-25 Kidd Brian L Remote manipulator device
US10537713B2 (en) 2009-05-25 2020-01-21 Stereotaxis, Inc. Remote manipulator device
US20110130718A1 (en) * 2009-05-25 2011-06-02 Kidd Brian L Remote Manipulator Device
US20110046618A1 (en) * 2009-08-04 2011-02-24 Minar Christopher D Methods and systems for treating occluded blood vessels and other body cannula
US10813997B2 (en) 2009-11-02 2020-10-27 Pulse Therapeutics, Inc. Devices for controlling magnetic nanoparticles to treat fluid obstructions
US8308628B2 (en) 2009-11-02 2012-11-13 Pulse Therapeutics, Inc. Magnetic-based systems for treating occluded vessels
US11000589B2 (en) 2009-11-02 2021-05-11 Pulse Therapeutics, Inc. Magnetic particle control and visualization
US10029008B2 (en) 2009-11-02 2018-07-24 Pulse Therapeutics, Inc. Therapeutic magnetic control systems and contrast agents
US8926491B2 (en) 2009-11-02 2015-01-06 Pulse Therapeutics, Inc. Controlling magnetic nanoparticles to increase vascular flow
US11612655B2 (en) 2009-11-02 2023-03-28 Pulse Therapeutics, Inc. Magnetic particle control and visualization
US8715150B2 (en) 2009-11-02 2014-05-06 Pulse Therapeutics, Inc. Devices for controlling magnetic nanoparticles to treat fluid obstructions
US8313422B2 (en) 2009-11-02 2012-11-20 Pulse Therapeutics, Inc. Magnetic-based methods for treating vessel obstructions
US9345498B2 (en) 2009-11-02 2016-05-24 Pulse Therapeutics, Inc. Methods of controlling magnetic nanoparticles to improve vascular flow
US10159734B2 (en) 2009-11-02 2018-12-25 Pulse Therapeutics, Inc. Magnetic particle control and visualization
US9339664B2 (en) 2009-11-02 2016-05-17 Pulse Therapetics, Inc. Control of magnetic rotors to treat therapeutic targets
US8529428B2 (en) 2009-11-02 2013-09-10 Pulse Therapeutics, Inc. Methods of controlling magnetic nanoparticles to improve vascular flow
US9687267B2 (en) 2009-12-02 2017-06-27 Covidien Lp Device for cutting tissue
US10499947B2 (en) 2009-12-02 2019-12-10 Covidien Lp Device for cutting tissue
US8496677B2 (en) 2009-12-02 2013-07-30 Covidien Lp Methods and devices for cutting tissue
US9028512B2 (en) 2009-12-11 2015-05-12 Covidien Lp Material removal device having improved material capture efficiency and methods of use
US9913659B2 (en) 2009-12-11 2018-03-13 Covidien Lp Material removal device having improved material capture efficiency and methods of use
US10751082B2 (en) 2009-12-11 2020-08-25 Covidien Lp Material removal device having improved material capture efficiency and methods of use
US9855072B2 (en) 2010-06-14 2018-01-02 Covidien Lp Material removal device and method of use
US9119662B2 (en) 2010-06-14 2015-09-01 Covidien Lp Material removal device and method of use
US10952762B2 (en) 2010-10-28 2021-03-23 Covidien Lp Material removal device and method of use
US8920450B2 (en) 2010-10-28 2014-12-30 Covidien Lp Material removal device and method of use
US9717520B2 (en) 2010-10-28 2017-08-01 Covidien Lp Material removal device and method of use
US9326789B2 (en) 2010-11-11 2016-05-03 Covidien Lp Flexible debulking catheters with imaging and methods of use and manufacture
US8808186B2 (en) 2010-11-11 2014-08-19 Covidien Lp Flexible debulking catheters with imaging and methods of use and manufacture
US10335188B2 (en) 2011-09-01 2019-07-02 Covidien Lp Methods of manufacture of catheter with helical drive shaft
US8992717B2 (en) 2011-09-01 2015-03-31 Covidien Lp Catheter with helical drive shaft and methods of manufacture
US9345511B2 (en) 2011-10-13 2016-05-24 Atheromed, Inc. Atherectomy apparatus, systems and methods
US11259835B2 (en) 2011-10-13 2022-03-01 Atheromed, Inc. Atherectomy apparatus systems and methods
US8795306B2 (en) 2011-10-13 2014-08-05 Atheromed, Inc. Atherectomy apparatus, systems and methods
US10226277B2 (en) 2011-10-13 2019-03-12 Atheromed, Inc. Atherectomy apparatus, systems, and methods
US9883878B2 (en) 2012-05-15 2018-02-06 Pulse Therapeutics, Inc. Magnetic-based systems and methods for manipulation of magnetic particles
US10646241B2 (en) 2012-05-15 2020-05-12 Pulse Therapeutics, Inc. Detection of fluidic current generated by rotating magnetic particles
US11684447B2 (en) 2012-05-31 2023-06-27 Boston Scientific Medical Device Limited Radiofrequency perforation apparatus
US10406316B2 (en) 2012-09-13 2019-09-10 Covidien Lp Cleaning device for medical instrument and method of use
US9579157B2 (en) 2012-09-13 2017-02-28 Covidien Lp Cleaning device for medical instrument and method of use
US9532844B2 (en) 2012-09-13 2017-01-03 Covidien Lp Cleaning device for medical instrument and method of use
US10434281B2 (en) 2012-09-13 2019-10-08 Covidien Lp Cleaning device for medical instrument and method of use
US11937873B2 (en) 2013-03-12 2024-03-26 Boston Scientific Medical Device Limited Electrosurgical device having a lumen
US12011210B2 (en) 2013-03-15 2024-06-18 Boston Scientific Medical Device Limited Electrosurgical device having a distal aperture
US11998238B2 (en) 2013-08-07 2024-06-04 Boston Scientific Medical Device Limited Methods and devices for puncturing tissue
US10213224B2 (en) 2014-06-27 2019-02-26 Covidien Lp Cleaning device for catheter and catheter including the same
US12048453B2 (en) 2014-06-27 2024-07-30 Covidien Lp Cleaning device for catheter and catheter including the same
US10314667B2 (en) 2015-03-25 2019-06-11 Covidien Lp Cleaning device for cleaning medical instrument
US10292721B2 (en) 2015-07-20 2019-05-21 Covidien Lp Tissue-removing catheter including movable distal tip
US11766290B2 (en) 2015-09-09 2023-09-26 Boston Scientific Medical Device Limited Epicardial access system and methods
US10314664B2 (en) 2015-10-07 2019-06-11 Covidien Lp Tissue-removing catheter and tissue-removing element with depth stop
US12128199B2 (en) 2016-01-07 2024-10-29 Boston Scientific Medical Device Limited Hybrid transseptal dilator and methods of using the same
US20180242999A1 (en) * 2017-02-28 2018-08-30 Angiosafe, Inc. Device and method for centering and crossing a vascular occlusion
US11123098B2 (en) * 2017-02-28 2021-09-21 Angiosafe, Inc. Device and method for centering and crossing a vascular occlusion
US11878131B2 (en) 2017-12-05 2024-01-23 Boston Scientific Medical Device Limited Transseptal guide wire puncture system
US11918315B2 (en) 2018-05-03 2024-03-05 Pulse Therapeutics, Inc. Determination of structure and traversal of occlusions using magnetic particles
US11759190B2 (en) 2019-10-18 2023-09-19 Boston Scientific Medical Device Limited Lock for medical devices, and related systems and methods
US11801087B2 (en) 2019-11-13 2023-10-31 Boston Scientific Medical Device Limited Apparatus and methods for puncturing tissue
US11724070B2 (en) 2019-12-19 2023-08-15 Boston Scientific Medical Device Limited Methods for determining a position of a first medical device with respect to a second medical device, and related systems and medical devices
US11931098B2 (en) 2020-02-19 2024-03-19 Boston Scientific Medical Device Limited System and method for carrying out a medical procedure
US11986209B2 (en) 2020-02-25 2024-05-21 Boston Scientific Medical Device Limited Methods and devices for creation of communication between aorta and left atrium
US12082792B2 (en) 2020-02-25 2024-09-10 Boston Scientific Medical Device Limited Systems and methods for creating a puncture between aorta and the left atrium
US11819243B2 (en) 2020-03-19 2023-11-21 Boston Scientific Medical Device Limited Medical sheath and related systems and methods
US12011279B2 (en) 2020-04-07 2024-06-18 Boston Scientific Medical Device Limited Electro-anatomic mapping system
US11826075B2 (en) 2020-04-07 2023-11-28 Boston Scientific Medical Device Limited Elongated medical assembly
US11938285B2 (en) 2020-06-17 2024-03-26 Boston Scientific Medical Device Limited Stop-movement device for elongated medical assembly
US11793446B2 (en) 2020-06-17 2023-10-24 Boston Scientific Medical Device Limited Electroanatomical mapping system with visualization of energy-delivery and elongated needle assemblies
US11937796B2 (en) 2020-06-18 2024-03-26 Boston Scientific Medical Device Limited Tissue-spreader assembly
US12042178B2 (en) 2020-07-21 2024-07-23 Boston Scientific Medical Device Limited System of medical devices and method for pericardial puncture
US12005202B2 (en) 2020-08-07 2024-06-11 Boston Scientific Medical Device Limited Catheter having tissue-engaging device
US11980412B2 (en) 2020-09-15 2024-05-14 Boston Scientific Medical Device Limited Elongated medical sheath
US12089867B2 (en) 2020-12-17 2024-09-17 Avantec Vascular Corporation Telescoping atherectomy device
US11304723B1 (en) 2020-12-17 2022-04-19 Avantec Vascular Corporation Atherectomy devices that are self-driving with controlled deflection

Also Published As

Publication number Publication date
EP1119299A1 (en) 2001-08-01
WO2000019917A1 (en) 2000-04-13
US6733511B2 (en) 2004-05-11
JP2002526148A (en) 2002-08-20
US6740103B2 (en) 2004-05-25
US20030014066A1 (en) 2003-01-16
US20020029056A1 (en) 2002-03-07
AU6279299A (en) 2000-04-26

Similar Documents

Publication Publication Date Title
US6428551B1 (en) Magnetically navigable and/or controllable device for removing material from body lumens and cavities
US6733511B2 (en) Magnetically navigable and/or controllable device for removing material from body lumens and cavities
US5312427A (en) Device and method for directional rotational atherectomy
US10960178B2 (en) Hydrodynamic vortex aspiration catheter
US5360432A (en) Abrasive drive shaft device for directional rotational atherectomy
US11135019B2 (en) Occlusion-crossing devices, atherectomy devices, and imaging
US6113614A (en) Medical device for dissolution of tissue within the human body
US7771437B2 (en) Guide for medical devices
US5554163A (en) Atherectomy device
US4653496A (en) Transluminal lysing system
US5792157A (en) Expandable intravascular occlusion material removal devices and methods of use
US5356418A (en) Apparatus and method for rotational atherectomy
US11931055B2 (en) Hydrodynamic vortex aspiration catheter
US20090234278A1 (en) Catheter insertion sheath with adjustable flexibility
US20050113853A1 (en) Guidewire for crossing occlusions or stenoses
EP0934727A1 (en) Rotary catheter for atherectomy system
AU613322B2 (en) Transluminal microdissection device
WO1999040957A1 (en) Method of and apparatus for navigating medical devices in body lumens
US20080132910A1 (en) Control for a Remote Navigation System
EP2775945B1 (en) Occlusion-crossing devices, atherectomy devices, and imaging
US20140094807A1 (en) Transpedicular Disk Access System
Fotopoulos et al. Percutaneous forceps extraction of retained biliary tract calculi
CA2488588C (en) Guidewire for crossing occlusions or stenosis
US20210346649A1 (en) Magnetizable clamp for a catheter
Coleman et al. Fluoroscopically guided techniques for renal and ureteral stone removal

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION