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Method and associated device for removing material from body

Info

Publication number
CA2207502A1
CA2207502A1 CA 2207502 CA2207502A CA2207502A1 CA 2207502 A1 CA2207502 A1 CA 2207502A1 CA 2207502 CA2207502 CA 2207502 CA 2207502 A CA2207502 A CA 2207502A CA 2207502 A1 CA2207502 A1 CA 2207502A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
clot
port
intake
device
suction
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
CA 2207502
Other languages
French (fr)
Other versions
CA2207502C (en )
Inventor
Gary A. Gelbfish
Original Assignee
Gary A. Gelbfish
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

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/3205Excision instruments
    • A61B17/3207Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320783Atherectomy 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34Trocars; Puncturing needles
    • A61B17/3417Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00238Type of minimally invasive operation
    • A61B2017/00243Type of minimally invasive operation cardiac
    • A61B2017/00247Making holes in the wall of the heart, e.g. laser Myocardial revascularization
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473Distal part, e.g. tip or head
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00345Vascular system
    • A61B2018/00351Heart
    • A61B2018/00392Transmyocardial revascularisation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00General characteristics of surgical instruments
    • A61B2217/002Auxiliary appliance
    • A61B2217/005Auxiliary appliance with suction drainage system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00General characteristics of surgical instruments
    • A61B2217/002Auxiliary appliance
    • A61B2217/007Auxiliary appliance with irrigation system

Abstract

A pull push device for removing a clot. The device includes an elongate tubular member having a suction port and an irrigation or fluid pressurization port respectively con-nectable to a vacuum source and a pressurizable fluid reser-voir. The tubular member also has a clot intake port positionable through a patient's skin inside a clogged vas-cular vessel. The vacuum source enables clot suction into the clot intake port for severing while liquid pressure supplies fluid for clot ejection and device clearance. A single piece rotating or reciprocating cutter and intake closure component is mounted inside the tubular member for closing the clot intake port upon each small vacuum assisted severing of clot mass by the cutting element. By simultaneously severing the clot and closing the intake port by the closure component, the device automatically converts from a suction to a pressure mode, thus ejecting any clot through the suction port. The ordered and continual suck, cut, push, pull tandem ejection system is aided by an automatic anticlogging mechanism which is operative when a sucked clot obstructs suction through the tubular member. This self-limiting feature closes off further suction and ends the process of clot intake. Only after window closure and clot ejection has occurred is vacuum restored to the intake port so that more clot may be sucked into the device for processing.
CA 2207502 1994-12-16 1995-12-15 Method and associated device for removing material from body Expired - Lifetime CA2207502C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US08/358,209 1994-12-16
US08358209 US5520635A (en) 1994-12-16 1994-12-16 Method and associated device for removing clot
PCT/US1995/016467 WO1996018432A1 (en) 1994-12-16 1995-12-15 Method and associated device for removing material from body

Publications (2)

Publication Number Publication Date
CA2207502A1 true true CA2207502A1 (en) 1996-06-20
CA2207502C CA2207502C (en) 2007-06-26

Family

ID=23408714

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2207502 Expired - Lifetime CA2207502C (en) 1994-12-16 1995-12-15 Method and associated device for removing material from body

Country Status (6)

Country Link
US (2) US5520635A (en)
JP (1) JPH10510738A (en)
CA (1) CA2207502C (en)
DE (2) DE69533677D1 (en)
EP (1) EP0843572B9 (en)
WO (1) WO1996018432A1 (en)

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Also Published As

Publication number Publication date Type
CA2207502C (en) 2007-06-26 grant
JPH10510738A (en) 1998-10-20 application
EP0843572B1 (en) 2004-10-20 grant
US5730717A (en) 1998-03-24 grant
US5520635A (en) 1996-05-28 grant
WO1996018432A1 (en) 1996-06-20 application
DE69533677D1 (en) 2004-11-25 grant
EP0843572B9 (en) 2005-02-02 grant
DE69533677T2 (en) 2006-02-16 grant
EP0843572A1 (en) 1998-05-27 application
EP0843572A4 (en) 2000-01-12 application

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