CA2168404A1 - Surgical instrument with expandable cutting element - Google Patents

Surgical instrument with expandable cutting element

Info

Publication number
CA2168404A1
CA2168404A1 CA002168404A CA2168404A CA2168404A1 CA 2168404 A1 CA2168404 A1 CA 2168404A1 CA 002168404 A CA002168404 A CA 002168404A CA 2168404 A CA2168404 A CA 2168404A CA 2168404 A1 CA2168404 A1 CA 2168404A1
Authority
CA
Canada
Prior art keywords
cutting element
tissue
surgical instrument
jaws
expandable cutting
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
CA002168404A
Other languages
French (fr)
Other versions
CA2168404C (en
Inventor
Dale Schulze
William D. Fox
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.)
Ethicon Endo Surgery Inc
Original Assignee
Ethicon Endo Surgery 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 Ethicon Endo Surgery Inc filed Critical Ethicon Endo Surgery Inc
Publication of CA2168404A1 publication Critical patent/CA2168404A1/en
Application granted granted Critical
Publication of CA2168404C publication Critical patent/CA2168404C/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
    • 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
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • 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
    • 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
    • A61B18/1402—Probes for open surgery
    • 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
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2945—Curved jaws
    • 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
    • A61B2018/00404—Blood vessels other than those in or around the heart
    • 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
    • A61B2018/00601—Cutting
    • 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
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1425—Needle
    • A61B2018/1432—Needle curved
    • 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
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • A61B2018/1452—Probes having pivoting end effectors, e.g. forceps including means for cutting
    • A61B2018/1455—Probes having pivoting end effectors, e.g. forceps including means for cutting having a moving blade for cutting tissue grasped by the jaws

Abstract

A surgical instrument is provided for clamping and cutting during surgical procedures, particularly for use with tissues of varying thicknesses. The instrument in a preferred embodiment compresses tissue between electrodss associated with jaws of the clamping device and applies electrosurgical energy to the tissue. The invention provides an expandable cutting element which is adapted to compensate for various thicknesses in tissue and contractible by providing a knife which can be contained within the jaws and expand as needed for thicker tissues. The cutting element is preferably actuated as or after the electrosurgical energy has been applied, to cut tissue engaged and treated by the jaw members.
CA002168404A 1995-02-01 1996-01-30 Surgical instrument with expandable cutting element Expired - Fee Related CA2168404C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US38246395A 1995-02-01 1995-02-01
US08/382,463 1995-02-01
US39573295A 1995-03-01 1995-03-01
US08/395,732 1995-03-01

Publications (2)

Publication Number Publication Date
CA2168404A1 true CA2168404A1 (en) 1996-08-02
CA2168404C CA2168404C (en) 2007-07-10

Family

ID=27009769

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002168404A Expired - Fee Related CA2168404C (en) 1995-02-01 1996-01-30 Surgical instrument with expandable cutting element

Country Status (6)

Country Link
US (1) US5797941A (en)
EP (1) EP0724863B1 (en)
JP (1) JP3895393B2 (en)
AU (1) AU704626B2 (en)
CA (1) CA2168404C (en)
DE (1) DE69603095T2 (en)

Families Citing this family (839)

* Cited by examiner, † Cited by third party
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CA2168404C (en) 2007-07-10
US5797941A (en) 1998-08-25
DE69603095D1 (en) 1999-08-12
JPH08252260A (en) 1996-10-01
EP0724863A3 (en) 1996-09-18
EP0724863A2 (en) 1996-08-07
EP0724863B1 (en) 1999-07-07
AU704626B2 (en) 1999-04-29
DE69603095T2 (en) 2000-01-05
JP3895393B2 (en) 2007-03-22
AU4227796A (en) 1996-08-08

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