CA2009953A1 - Atherectomy systems and methods - Google Patents

Atherectomy systems and methods

Info

Publication number
CA2009953A1
CA2009953A1 CA2009953A CA2009953A CA2009953A1 CA 2009953 A1 CA2009953 A1 CA 2009953A1 CA 2009953 A CA2009953 A CA 2009953A CA 2009953 A CA2009953 A CA 2009953A CA 2009953 A1 CA2009953 A1 CA 2009953A1
Authority
CA
Canada
Prior art keywords
cutter
torque tube
patient
distal end
guide wire
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.)
Granted
Application number
CA2009953A
Other languages
French (fr)
Other versions
CA2009953C (en
Inventor
Andrew F. Farr
Herbert R. Radisch, Jr.
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.)
InterVentional Technologies Inc
Original Assignee
InterVentional Technologies Inc
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 InterVentional Technologies Inc filed Critical InterVentional Technologies Inc
Publication of CA2009953A1 publication Critical patent/CA2009953A1/en
Application granted granted Critical
Publication of CA2009953C publication Critical patent/CA2009953C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

Abstract

An atherectomy system comprises a guide wire which can be inserted into an artery of a patient to a region of occlusion, a torque tube having a cutter device affixed to its distal end which is insertable into the artery over the guide wire, and a protective support sheath surrounding the guide wire and the torque tube. Retraction means is provided for controllably retracting the support sheath so as to allow the cutter on the distal end of the torque tube to extend progressively greater distances beyond the distal end of the support sheath. The system also includes means for rotating the torque tube, thereby simultaneously rotating the cutter, and vacuum means connected to the torque tube for extracting dislodged cuttings from the patient's bloodstream. The guide wire is preferably provided with an abutment on its distal end which both mechanically limits the distance the cutter can advance into the patient's body and assists in retrieving the cutter from the patient's body following the atherectomy operation.
CA002009953A 1989-11-07 1990-02-13 Atherectomy systems and methods Expired - Fee Related CA2009953C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US433,032 1989-11-07
US07/433,032 US5026384A (en) 1989-11-07 1989-11-07 Atherectomy systems and methods

Publications (2)

Publication Number Publication Date
CA2009953A1 true CA2009953A1 (en) 1991-05-07
CA2009953C CA2009953C (en) 1994-11-08

Family

ID=23718589

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002009953A Expired - Fee Related CA2009953C (en) 1989-11-07 1990-02-13 Atherectomy systems and methods

Country Status (6)

Country Link
US (1) US5026384A (en)
EP (1) EP0427368B1 (en)
JP (1) JPH0640875B2 (en)
AU (1) AU630419B2 (en)
CA (1) CA2009953C (en)
DE (1) DE69018379T2 (en)

Families Citing this family (208)

* Cited by examiner, † Cited by third party
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JPH0640875B2 (en) 1994-06-01
DE69018379T2 (en) 1995-10-05
DE69018379D1 (en) 1995-05-11
AU5014590A (en) 1991-05-16
CA2009953C (en) 1994-11-08
JPH03158146A (en) 1991-07-08
AU630419B2 (en) 1992-10-29
EP0427368B1 (en) 1995-04-05
US5026384A (en) 1991-06-25
EP0427368A1 (en) 1991-05-15

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