CA2234539A1 - Surgical apparatus - Google Patents

Surgical apparatus

Info

Publication number
CA2234539A1
CA2234539A1 CA002234539A CA2234539A CA2234539A1 CA 2234539 A1 CA2234539 A1 CA 2234539A1 CA 002234539 A CA002234539 A CA 002234539A CA 2234539 A CA2234539 A CA 2234539A CA 2234539 A1 CA2234539 A1 CA 2234539A1
Authority
CA
Canada
Prior art keywords
cannula
abutment
tissue
contact
surgical apparatus
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
CA002234539A
Other languages
French (fr)
Other versions
CA2234539C (en
Inventor
Arthur William Pratt
Ian Mcdougall
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 CA2234539A1 publication Critical patent/CA2234539A1/en
Application granted granted Critical
Publication of CA2234539C publication Critical patent/CA2234539C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A61F9/00763—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments with rotating or reciprocating cutting elements, e.g. concentric cutting needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2804—Surgical forceps with two or more pivotal connections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2912—Handles transmission of forces to actuating rod or piston
    • A61B2017/2913—Handles transmission of forces to actuating rod or piston cams or guiding means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2912—Handles transmission of forces to actuating rod or piston
    • A61B2017/2919—Handles transmission of forces to actuating rod or piston details of linkages or pivot points
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A61B17/2909—Handles
    • A61B2017/2912—Handles transmission of forces to actuating rod or piston
    • A61B2017/2924—Translation movement of handle without rotating movement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/30—Surgical pincettes without pivotal connections
    • A61B2017/305—Tweezer like handles with tubular extensions, inner slidable actuating members and distal tools, e.g. microsurgical instruments
    • 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
    • A61B2017/320044—Blunt dissectors

Abstract

Apparatus to remove tissue. The apparatus has an outer cannula and an inner cannula received within the outer cannula. The cannula are longitudinally movable relative to each other. There is an abutment at the end of one cannula to contact the other cannula. A drive permits advancing of the other cannula to contact the abutment whereby tissue between the other cannula and the abutment is removed. The invention finds particular application in removable of lens tissue from the eye of a human or other animal.
CA002234539A 1997-04-10 1998-04-08 Surgical apparatus Expired - Fee Related CA2234539C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/843,606 1997-04-10
US08/843,606 US5893862A (en) 1997-04-10 1997-04-10 Surgical apparatus

Publications (2)

Publication Number Publication Date
CA2234539A1 true CA2234539A1 (en) 1998-10-10
CA2234539C CA2234539C (en) 2007-08-28

Family

ID=25290502

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002234539A Expired - Fee Related CA2234539C (en) 1997-04-10 1998-04-08 Surgical apparatus

Country Status (4)

Country Link
US (1) US5893862A (en)
EP (1) EP0870486B1 (en)
JP (1) JP4047445B2 (en)
CA (1) CA2234539C (en)

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Also Published As

Publication number Publication date
CA2234539C (en) 2007-08-28
JPH1119116A (en) 1999-01-26
JP4047445B2 (en) 2008-02-13
EP0870486B1 (en) 2005-11-09
EP0870486A1 (en) 1998-10-14
US5893862A (en) 1999-04-13

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Effective date: 20130408