CN118236149A - Adjustable and controllable targeting ablation tube - Google Patents
Adjustable and controllable targeting ablation tube Download PDFInfo
- Publication number
- CN118236149A CN118236149A CN202311305345.3A CN202311305345A CN118236149A CN 118236149 A CN118236149 A CN 118236149A CN 202311305345 A CN202311305345 A CN 202311305345A CN 118236149 A CN118236149 A CN 118236149A
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- guide wire
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- 238000002679 ablation Methods 0.000 title claims abstract description 22
- 230000008685 targeting Effects 0.000 title claims abstract description 12
- 238000005491 wire drawing Methods 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000005452 bending Methods 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000013153 catheter ablation Methods 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000002526 effect on cardiovascular system Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 238000002690 local anesthesia Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000771 oncological effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 238000007674 radiofrequency ablation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
- A61B2018/0212—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques using an instrument inserted into a body lumen, e.g. catheter
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Otolaryngology (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Cardiology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses an adjustable targeting ablation tube, which comprises a handle, a catheter, a guide wire, a central wire drawing push button, a sliding component and a transmission component, wherein the handle is arranged on the catheter; one end of the guide wire extends into the handle, the other end of the guide wire is positioned outside the handle, a plurality of channels are formed in the inner wall of the guide wire, two guide wires are arranged, the guide wires are wound on the transmission assembly, two ends of the guide wires are respectively fixed at the far ends of the channels in the guide wire, one end of the central wire drawing is fixed on the sliding assembly, and the other end of the central wire drawing penetrates through the guide wire and is connected with the electrode; the sliding component and the transmission component are positioned in the handle, and the transmission component regulates and controls the bending of the guide tube by regulating the length of the guide wire relative to the guide tube. The adjustable targeting ablation tube provided by the invention has the advantages that the distal end of the catheter can be bent in an adjustable way through the steel wire, the direction of the head end of the catheter can be adjusted through the rotating wheel on the handle, and the advancing route is selected.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a regulatable and controllable targeting ablation tube.
Background
The catheter is penetrated into the blood vessel subcutaneously by the catheter ablation, the position of the catheter is moved by medical staff under the monitoring of instruments to approach to the lesion sites of tissues and organs such as cardiovascular and the like, then the high heat is instantaneously released at the lesion sites, and the moisture in local tissues is evaporated, dried and necrotized by the heat efficiency, so that the treatment purpose is achieved. The current catheter ablation technique includes catheter radio frequency ablation, laser ablation, cryoablation and the like. Currently, catheter ablation has been widely used in clinical medicine for the treatment of cardiovascular diseases, even tumors, etc. Catheter ablation has several advantages over traditional surgical cardiovascular and oncological procedures:
(1) Minimally invasive: the utility model is not required to be cut by the chest or the back, only needs to be punctured by the artery, does not affect the beauty, and has a wound of only a few millimeters.
(2) Side effects are extremely mild compared with major surgery with chest and abdomen opening, reducing the risk of complications: most interventional operations are performed in a local anesthesia state, and patients are awake in the whole operation, so that the doctor can be informed of own feelings at any time, and side effects and operation risks are avoided.
(3) And (3) the recovery is fast: the operation time is short, the operation time can be completed within one hour, the operation can be performed in the next day, and the hospital discharge can be performed in two to three days.
However, since the focus in the blood vessel is mostly on the inner wall or around the blood vessel, the current catheter ablation technique can not move freely on the plane in the blood vessel to ablate near the focus, so that the position of the catheter needs to be adjusted repeatedly to ablate, the operation is troublesome, the efficiency is low, and the ablation effect of the focus is not very good.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a regulatable targeting ablation tube, which can adjust the direction of the head end of a catheter and select an advancing route.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
An adjustable targeting ablation tube comprises a handle, a catheter, a guide wire, a central wire drawing push button, a sliding component and a transmission component; one end of the guide pipe extends into the handle, the other section of the guide pipe is positioned outside the handle, a plurality of channels are arranged on the inner wall of the guide pipe, two guide wires are arranged, the guide wires are wound on the transmission assembly, two ends of the guide wires are respectively fixed at the far ends of the channels in the guide pipe, one end of the central wire drawing is fixed on the sliding assembly, and the other end of the central wire drawing penetrates through the guide pipe 5, is arranged at the center of the basket support 6 and is connected with the developing head; the sliding component and the transmission component are positioned in the handle, and the transmission component regulates and controls the bending of the guide tube by regulating the length of the guide wire relative to the guide tube.
The technical scheme is further improved as follows:
preferably, the basket support is formed by braiding a plurality of memory metals and is elliptical or circular; one end of the basket support is fixed on the head end of the catheter, and the other end of the basket support is fixed on the developing head far away from the head end of the catheter.
Preferably, the handle is of a hollow structure to form an operation bin, the handle is divided into two sections, one end of the handle is a cylinder, the other end of the handle is a cone, and the cone end of the handle formed by two symmetrical shells is provided with a through hole for installing a catheter.
Preferably, the guide tube is provided with a limiting protrusion, the limiting protrusion is matched with the through hole and limits the guide tube, and the guide tube penetrates into the handle from the through hole and extends into the middle of the handle.
Preferably, the transmission assembly comprises a boss fixed within the handle and located at a section without the catheter; each guide wire is wound on a guide wire winch, the guide wire winch is installed at one end of the boss, the guide wire winch is installed in the boss through a rotating shaft, and the guide wire winch can rotate relative to the boss by taking the rotating shaft as the center.
Preferably, the guide wire winch is provided with a groove, the guide wire is wound in the groove of the guide wire winch, two sides of the boss are provided with guide grooves, and two ends of the guide wire penetrate through the guide grooves and enter the guide tube.
Preferably, the transmission assembly further comprises a rotating wheel, an operation bin is arranged outside the handle and used for installing the rotating wheel, and after the rotating wheel is installed in the operation bin, a part of operation parts extend out of the rectangular opening.
Preferably, the sliding component comprises a sliding piece and a sliding rail, the sliding rail is arranged in the handle, one end of the central wire drawing push button extends out of the handle, and the other end of the central wire drawing push button is positioned in the handle; the center wire drawing push button is connected with the sliding piece through a connecting rod, and the sliding piece is installed on the sliding rail in a sliding mode.
Preferably, the catheter is provided with a plurality of channels in the catheter wall along the length direction, and at least 4 channels are respectively positioned at four diagonal positions.
Compared with the prior art, the adjustable targeting ablation tube provided by the invention has the following advantages:
The adjustable targeting ablation tube provided by the invention has the advantages that the adjustable bending of the distal end of the catheter is realized through the steel wire, the direction of the head end of the catheter can be adjusted through the rotating wheel on the handle, the advancing route is selected, the ablation can be accurately performed on a target area, and the adjustable targeting ablation tube is mainly applied to the selective ablation of asymmetric and tortuosity angulation calcification lesions, so that the success rate of interventional therapy is improved, and the long-term prognosis is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic illustration of a catheter lumen as practiced by the application of the present invention.
FIG. 3 is a schematic view of the structure of the basket support in the application and implementation of the present invention.
The reference numerals in the figures illustrate:
1. a handle; 2. a boss; 3. closing the cover; 4. a central wiredrawing push button; 5. a conduit; 6. basket support.
Detailed Description
The technical solutions of the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is apparent that the described embodiments are only some embodiments of the present specification, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present invention based on the embodiments herein.
FIGS. 1-3 illustrate one embodiment of the steerable targeted ablation tube of the invention, including a handle 1, a catheter 5, a guidewire, a center wire push button 4, a sliding assembly, a transmission assembly, and a basket support 6; one end of the guide pipe 5 extends into the handle 1, the other section of the guide pipe is positioned outside the handle 1, a plurality of channels are formed in the inner wall of the guide pipe 5, the guide wire is wound on the transmission assembly, two ends of the guide wire are respectively arranged in different channels of the guide pipe 5, a developing head is arranged at the head end of the guide pipe, one end of the central wire drawing is fixed on the sliding assembly, and the other end of the central wire drawing penetrates through the guide pipe 5, is arranged in the center of the basket support 6 and is connected with the developing head; the sliding assembly and the transmission assembly are positioned in the handle 1, and the transmission assembly regulates the bending of the catheter 5 by adjusting the length of the guide wire relative to the catheter 5.
In this embodiment, the basket support 6 is woven from a plurality of memory metals and is oval or circular. One end of the basket support 6 is fixed on the head end of the catheter, and the other end is fixed on the developing head far away from the head end of the catheter.
In the embodiment, the handle 1 is of a hollow structure, an operation bin is formed, the handle 1 is divided into two sections, one end of the handle is a cylinder,
One end is a cone, and the handle 1 consists of two symmetrical shells. The cone end of the handle 1 is provided with a through hole for installing the guide pipe 5, the guide pipe 5 is provided with a limiting bulge, the limiting bulge is matched with the through hole to limit the guide pipe 5, and the guide pipe 5 penetrates into the handle 1 from the through hole and extends into the middle of the handle 1.
In this embodiment, the transmission assembly comprises a boss 2, the boss 2 being fixed within the handle 1 and located at a section without the conduit 5. Two ends of the boss 2 are provided with two guide grooves, guide wires are wound on a guide wire winch, 2 guide wires are arranged into a left guide wire and a right guide wire, each guide wire corresponds to one guide wire winch, the guide wire winch is arranged at one end of the boss 2, the guide wire winch is arranged in the guide groove of the boss 2 through a rotating shaft, and the guide wire winch can rotate relative to the boss 2 by taking the rotating shaft as the center. The guide wire winch is provided with a groove, the guide wire is wound in the groove of the guide wire winch, the groove of the guide wire winch is provided with a rubber ring, and two ends of the guide wire penetrate through the guide groove and enter the guide pipe 5. In this embodiment, the boss 2 is further provided with a closing cover 3, and when the installation of the guide wire and the guide wire winch is completed, the closing cover 3 is installed outside the boss 2, so that the guide wire and the guide wire winch can be prevented from falling off.
In this embodiment, drive assembly still includes the runner, the outside of handle 1 is equipped with the operation storehouse for install the runner, open the top of operation storehouse has a rectangle opening, and the runner is installed in the operation storehouse after, and a part is stretched out from the rectangle opening, is equipped with the outer lid that closes in the operation storehouse outside, and the center of closing the lid outward is equipped with a circular recess, corresponds with the boss 2 at the center outside the runner, and after the runner installation was accomplished, the boss 2 fastening on circular recess and the runner center that closes in the outer lid for the runner can be in the operation storehouse internal rotation. The number of the rotating wheels is 2, the rotating wheels are respectively positioned at two sides of the handle, and each rotating wheel is connected with one wire guiding winch and used for rotating the corresponding wire guiding winch.
In this embodiment, the middle of the top of the handle 1 is also provided with a chute for installing the central wire drawing push button 4, the sliding component comprises a sliding piece and a sliding rail, the sliding rail is arranged in the handle 1, one end of the central wire drawing push button 4 extends out of the handle 1, and one end is positioned in the handle 1. The handle 1 is internally provided with a baffle matched with the chute, so that the interior of the handle 1 can be prevented from being exposed. The center wire drawing push button 4 is connected with the sliding part through a connecting rod, the sliding part is slidably mounted on the sliding rail, and two fixing screws are further arranged on the sliding part and used for fixing one end of the center wire drawing. The catheter 5 body has a proximal end and a distal end, the distal end being bendable; the guide pipe 5 is internally provided with a cavity, the guide pipe 5 is internally provided with a plurality of cavities along the length direction in the pipe wall, at least 4 of the cavities A, B, C and D are respectively positioned at four opposite angles, one of the cavities E is provided with a central cavity E, and the cavity E is also provided with an F cavity for passing through a thermocouple wire. Two ends of a guide wire penetrate through two cavities at non-diagonal positions, and the far ends of the cavities provided with the guide wires are closed; one end of the central wire drawing is fixed on the central wire drawing push button 4, and the other end passes through the central cavity E and is connected with the basket at the head end of the catheter, and the expansion or contraction of the basket is controlled by pushing and pulling the central wire drawing.
In this embodiment, the guide wire is heat treated in advance and memory trained so that both ends of the guide wire are bent up and down or left and right, respectively, the left guide wire is used for controlling front and rear, the right guide wire is used for controlling left and right, and the guide wire is installed in four diagonal channels of the catheter 5. The left/right side rotating wheel of the handle is rolled, the guide wire winch is driven by the transmission assembly, the guide wire winch drives the guide wire to move back and forth, and the left/right guide wire is subjected to heat treatment shaping in advance.
The above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention in any way. While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (8)
1. The adjustable targeting ablation tube is characterized by comprising a handle, a catheter, a guide wire, a central wire drawing push button, a sliding component and a transmission component; one end of the guide pipe extends into the handle, the other section of the guide pipe is positioned outside the handle, a plurality of channels are arranged on the inner wall of the guide pipe, two guide wires are arranged, the guide wires are wound on the transmission assembly, two ends of the guide wires are respectively fixed at the far ends of the channels in the guide pipe, one end of the central wire drawing is fixed on the sliding assembly, and the other end of the central wire drawing penetrates through the guide pipe, is arranged at the center of the basket support and is connected with the developing head; the sliding component and the transmission component are positioned in the handle, and the transmission component regulates and controls the bending of the guide tube by regulating the length of the guide wire relative to the guide tube.
2. The adjustable targeting ablation tube according to claim 1, wherein the handle is of a hollow structure, forming an operation cabin, the handle is divided into two sections, one end is a cylinder, the other end is a cone, and the cone end of the handle formed by two symmetrical shells is provided with a through hole for installing a catheter.
3. The adjustable targeted ablation tube according to claim 2, wherein the catheter is provided with a limiting protrusion, the limiting protrusion is matched with the through hole and limits the catheter, and the catheter penetrates into the handle from the through hole and extends into the middle of the handle.
4. The steerable targeted ablation tube of claim 1, wherein the transmission assembly comprises a boss secured within the handle at a section without a catheter; each guide wire is wound on a guide wire winch, the guide wire winch is installed at one end of the boss, the guide wire winch is installed in the boss through a rotating shaft, and the guide wire winch can rotate relative to the boss by taking the rotating shaft as the center.
5. The adjustable targeted ablation tube of claim 4, wherein the wire capstan is provided with a groove, the wire is wound in the groove of the wire capstan, two sides of the boss are provided with guide grooves, and two ends of the wire pass through the guide grooves and enter the catheter.
6. The steerable targeted ablation tube of claim 5, wherein the drive assembly further comprises a runner, the handle having an operating compartment external to the handle for mounting the runner, the runner being mounted in the operating compartment such that a portion of the operating portion extends out of the rectangular opening.
7. The adjustable targeted ablation tube of claim 6, wherein the sliding assembly comprises a sliding piece and a sliding rail, the sliding rail is arranged in the handle, one end of the central wiredrawing push button extends out of the handle, and the other end of the central wiredrawing push button is positioned in the handle; the center wire drawing push button is connected with the sliding piece through a connecting rod, and the sliding piece is installed on the sliding rail in a sliding mode.
8. The adjustable targeted ablation tube of claim 1, wherein the catheter has a plurality of lumens in the wall along the length of the catheter, at least 4 lumens each located at four diagonal positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311305345.3A CN118236149A (en) | 2023-10-10 | 2023-10-10 | Adjustable and controllable targeting ablation tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311305345.3A CN118236149A (en) | 2023-10-10 | 2023-10-10 | Adjustable and controllable targeting ablation tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118236149A true CN118236149A (en) | 2024-06-25 |
Family
ID=91559341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311305345.3A Pending CN118236149A (en) | 2023-10-10 | 2023-10-10 | Adjustable and controllable targeting ablation tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118236149A (en) |
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2023
- 2023-10-10 CN CN202311305345.3A patent/CN118236149A/en active Pending
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