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DE448859T1 - System zur gefuehrten atherektomie. - Google Patents

System zur gefuehrten atherektomie.

Info

Publication number
DE448859T1
DE448859T1 DE199090305091T DE90305091T DE448859T1 DE 448859 T1 DE448859 T1 DE 448859T1 DE 199090305091 T DE199090305091 T DE 199090305091T DE 90305091 T DE90305091 T DE 90305091T DE 448859 T1 DE448859 T1 DE 448859T1
Authority
DE
Germany
Prior art keywords
flexible
arterectomy
blood vessel
wire
distal end
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.)
Pending
Application number
DE199090305091T
Other languages
English (en)
Inventor
Samuel Mundelein Ill. Shiber
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
Application filed by Individual filed Critical Individual
Publication of DE448859T1 publication Critical patent/DE448859T1/de
Pending legal-status Critical Current

Links

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
    • 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
    • A61B17/22004—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 using mechanical vibrations, e.g. ultrasonic shock waves
    • A61B17/22012—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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
    • 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
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320783—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions through side-hole, e.g. sliding or rotating cutter inside catheter
    • 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
    • A61B18/08—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by means of electrically-heated probes
    • A61B18/082—Probes or electrodes therefor
    • 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
    • A61B18/22—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 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
    • A61B18/24—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 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with a catheter
    • A61B18/245—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 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor with a catheter for removing obstructions in blood vessels or calculi
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/02—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing for conveying rotary movements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
    • A61B2017/00539—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated hydraulically
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00681—Aspects not otherwise provided for
    • A61B2017/00685—Archimedes screw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/0084—Material properties low friction
    • A61B2017/00845—Material properties low friction of moving parts with respect to each other
    • 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
    • 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
    • A61B2017/22051—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
    • A61B2017/22052—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation eccentric
    • 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
    • A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320084—Irrigation sleeves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/37—Surgical systems with images on a monitor during operation
    • A61B2090/373—Surgical systems with images on a monitor during operation using light, e.g. by using optical scanners
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/37—Surgical systems with images on a monitor during operation
    • A61B2090/378—Surgical systems with images on a monitor during operation using ultrasound
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B90/37—Surgical systems with images on a monitor during operation
    • A61B2090/378—Surgical systems with images on a monitor during operation using ultrasound
    • A61B2090/3782—Surgical systems with images on a monitor during operation using ultrasound transmitter or receiver in catheter or minimal invasive instrument
    • A61B2090/3784—Surgical systems with images on a monitor during operation using ultrasound transmitter or receiver in catheter or minimal invasive instrument both receiver and transmitter being in the instrument or receiver being also transmitter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A61B2090/3933—Liquid markers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/005—Auxiliary appliance with suction drainage system
    • 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
    • A61M25/09—Guide wires
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2316/00—Apparatus in health or amusement
    • F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Otolaryngology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Plasma & Fusion (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Surgical Instruments (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Claims (1)

  1. Ansprüche
    1 . Arterektomie-System zum Entfernen eines Obstruktionsmaterials aus dem Blutgefäß eines Patienten, beinhaltend in Kombination:
    einen in das Blutgefäß einführbaren flexiblen Führungsdraht, der einen Hohlraum zum Festhalten des Obstruktionsmaterials definiert,
    einen flexiblen Katheter mit einem Ausschneidemittel an seinem distalen Ende mit einem ununterbrochenen Durchgang zur Aufnahme des ausgeschnittenen Obstruktionsmaterials, wobei der flexible Katheter von dem flexiblen Führungsdraht geführt und über ihn schiebbar ist,
    Kupplungsmittel am proximalen Ende des flexiblen Katheters
    zur Verbindung des flexiblen Katheters mit Antriebsmitteln.
    2. Arterektomie-System nach Anspruch 1, worin das Ausschneidemittel eine rohrförmige Klinge ist.
    3. Arterektomie-System nach Anspruch 1, worin das Ausschneidemittel eine rohrförmige Klinge ist, die wenigstens einen Zahn aufweist.
    4. Arterektomie-System nach Anspruch 1, worin das Ausschneidemittel Hilfsenergie benutzt.
    5. Arterektomie-System nach Anspruch 1, worin das Ausschneidemittel eine rohrförmige Klinge ist, die eine
    Hilfsenergie benutzt zur Unterstützung beim Ausschneiden des Obstruktionsmaterials.
    6. Arterektomie-System nach Anspruch 1, mit einer flexiblen Hülse, in der der flexible Katheter angeordnet ist.
    7. Arterektomie-System nach Anspruch 6, worin die Hülse Mittel besitzt, um sie in dem Blutgefäß auszurichten.
    8. Arterektomie-System nach Anspruch 7, worin die Ausrichtmittel eine aufblasbare Kammer beinhalten, die an dem distalen Ende der flexiblen Hülse gebildet ist.
    9. Arterektomie-System nach Anspruch 7, worin die flexible Hülse eine Zunge an ihrem distalen Ende aufweist, um die Hülse in dem Blutgefäß auszurichten.
    10. Arterektomie-System nach Anspruch 9, worin die Zunge wahlweise einstellbar ist.
    11. Arterektomie-System nach Anspruch 6, worin Mittel zur Übertragung von Fluid in das Blutgefäß mit der flexiblen Hülse verbunden sind.
    12. Arterektomie-System nach Anspruch 1, worin Unterdruck angewendet wird, um das ausgeschnittene Obstruktionsmaterial in dem ununterbrochenen Durchgang proximal zu ziehen.
    13. Arterektomie-System nach Anspruch 12, worin der Unterdruck seitens einer Pumpe der Verdrangerbauart zur Verfugung gestellt ist.
    14. Arterektomie-System nach Anspruch 1, worin ein Abschnitt des distal in den flexiblen Katheter eingesetzten und in das Blutgefäß eingeführten flexiblen Führungsdrahtes den flexiblen Katheter mit dem Blutgefäß in konzentrische Flucht bringt.
    10
    15. Arterektomie-System nach Anspruch 1, worin ein Abschnitt des flexiblen Führungsdrahtes, der sich von dem flexiblen Katheter aus distal in das Blutgefäß erstreckt, einen Hebelarm zur Verfügung stellt, der den flexiblen Katheter mit dem Blutgefäß winkelmäßig in Flucht bringt.
    16. Arterektomie-System nach Anspruch 1, worin wenigstens ein Abschnitt des flexiblen Führungsdrahtes wie ein Bohrer geformt ist. .
    17. Arterektomie-System nach Anspruch 16, worin der Bohrer aus einem gewendelten Draht besteht, der aus wenigstens zwei Lagen gebildet ist, die sein absolutes Querschnittsmaß rund um eine quer zur Hauptachse des Bohrers verlaufende neutrale Achse vermindern.
    18. Arterektomie-System nach Anspruch 1, worin der flexiblen Führungsdraht aus einem Pilotdraht und einem darauf gleitenden flexiblen Gehäuse besteht, welches einen Hohlraum zum Festhalten des Obstruktionsmaterials definiert.
    19. Arterektomie-System nach Anspruch 18, worin der flexible Pilotdraht an seinem distalen Ende ein Hilfsenergie-Hülse aufweist.
    20. Arterektomie-System nach Anspruch 19, worin die Hilfsenergie von dem Pilotdraht emittiert wird, um den gewendelten Draht beim Durchqueren des Obstruktionsmaterials zu unterstützen.
    21. Arterektomie-System nach Anspruch 18, worin der flexible Pilotdraht ein Rohr ist.
    22. Arterektomie-System nach Anspruch 18, worin ein Abschnitt des flexiblen Pilotdrahts distal in das
    flexible Gehäuse und das Blutgefäß einführbar ist und einen Hebelarm bereitstellt, um das flexible Gehäuse mit dem Blutgefäß winkelmäßig in Flucht miteinander zu bringen.
    20
    23. Arterektomie-System nach Anspruch 18, worin wenigstens ein Abschnitt des flexiblen Gehäuses ein gewendelter Draht ist.
    24. Arterektomie-System nach Anspruch 23, worin das distale Ende des gewendelten Drahtes mit einem schmalen Durchgang abgeschlossen ist.
    25. Arterektomie-System nach Anspruch 24, worin der Durchgang ein kurzer Rohrabschnitt ist, der an dem distalen Ende des gewendelten Drahtes befestigt ist.
    26. Arterektomie-System nach Anspruch 23, worin der gewendelte Draht Hilfsenergie durch sein distales Ende aussendet.
    28. Arterektomie-System nach Anspruch 23, worin der gewendelte Draht aus einem Draht gemacht ist, der um eine quer zur Hauptachse des gewendelten Drahtes verlaufende neutrale Achse herum einen verminderten Querschnittsmodul hat.
    10
    29. Arterektomie-System nach Anspruch 28, worin der gewendelte Draht aus wenigstens zwei Lagen gebildet ist, die den Querschnittsmodul des gewendelten Drahtes um eine quer zur Hauptachse des gewendelten Drahtes verlaufende neutrale Achse herum vermindern.
    30. Arterektomie-System nach Anspruch 1, worin der flexiblen Führungsdraht eine radial vorstehende Sperre hat.
    31 . Arterektomie-System nach Anspruch 30, worin die Sperre wahlweise ausgedehnt werden kann.
    32. Arterektomie-System nach Anspruch 1, worin der flexiblen Führungsdraht an seinem distalen Ende eine Hülse zum Senden und Empfangen von Hilfsenergie aufweist.
    33. Arterektomie-System nach Anspruch 32, worin das distale Ende des flexiblen Führungsdrahtes Mittel zum Durchbohren des Obstruktionsmaterials aufweist.
    34. Arterektomie-System nach Anspruch 33, worin die Bohrmittel scharfe Vorsprünge umfassen.
    35. Arterektomie-System nach Anspruch 33, worin die Bohrmittel Hilfsenergie benutzen.
    36. Arterektomie-System nach Anspruch 1, mit Einstellmitteln zum Ablenken der Bahnkurve des flexiblen Führungsdrahtes in dem Blutgefäß.
    37. Arterektomie-System nach Anspruch 36, worin die Einstellmittel eine wahlweise aufblasbare asymmetrische Kammer umfassen, die an dem distalen Ende der flexiblen Hülse ausgebildet ist.
    38. Verfahren zum Entfernen einer Obstruktion aus einem Blutgefäß mit einem Arterektomie-System, beinhaltend die folgenden Schritte:
    Einführen eines flexiblen Führungsdrahtes in das Blutgefäß und in die Obstruktion,
    Festhalten der Obstruktion mit dem flexiblen Führungsdraht ,
    Vorschieben eines an einem distalen Ende eines flexiblen Katheters angeordneten Ausschneidemittels über den flexiblen Führungsdraht,
    Vorschieben des Ausschneidemittels in die Obstruktion und ausschneiden der Obstruktion, während das Ausschneidemittel in dem Blutgefäß geführt und durch den flexiblen Führungsdraht mit dem Blutgefäß ausgerichtet ist.
    39. Verfahren nach Anspruch 38, worin ein röntgenstrahlenundurchlässiges Fluid durch den flexiblen Führungsdraht injiziert wird, um ein Durchleuchtungsbild des Blutgefäßes zu erleichtern.
DE199090305091T 1990-03-27 1990-05-11 System zur gefuehrten atherektomie. Pending DE448859T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/499,726 US5135531A (en) 1984-05-14 1990-03-27 Guided atherectomy system

Publications (1)

Publication Number Publication Date
DE448859T1 true DE448859T1 (de) 1992-01-16

Family

ID=23986446

Family Applications (1)

Application Number Title Priority Date Filing Date
DE199090305091T Pending DE448859T1 (de) 1990-03-27 1990-05-11 System zur gefuehrten atherektomie.

Country Status (3)

Country Link
US (1) US5135531A (de)
EP (1) EP0448859A3 (de)
DE (1) DE448859T1 (de)

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US5443443A (en) * 1984-05-14 1995-08-22 Surgical Systems & Instruments, Inc. Atherectomy system
US5100424A (en) * 1990-05-21 1992-03-31 Cardiovascular Imaging Systems, Inc. Intravascular catheter having combined imaging abrasion head
US5423846A (en) * 1991-10-21 1995-06-13 Cathco, Inc. Dottering auger catheter system
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US5135531A (en) 1992-08-04
EP0448859A2 (de) 1991-10-02
EP0448859A3 (en) 1992-05-27

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