CA2482577A1 - Surgical stapling instrument having multistroke firing with opening lockout - Google Patents

Surgical stapling instrument having multistroke firing with opening lockout Download PDF

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Publication number
CA2482577A1
CA2482577A1 CA002482577A CA2482577A CA2482577A1 CA 2482577 A1 CA2482577 A1 CA 2482577A1 CA 002482577 A CA002482577 A CA 002482577A CA 2482577 A CA2482577 A CA 2482577A CA 2482577 A1 CA2482577 A1 CA 2482577A1
Authority
CA
Canada
Prior art keywords
firing
surgical instrument
motion
operably configured
closure
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
CA002482577A
Other languages
French (fr)
Other versions
CA2482577C (en
Inventor
Frederick E. Shelton, Iv
Jeffrey S. Swayze
Douglas B. Hoffman
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 CA2482577A1 publication Critical patent/CA2482577A1/en
Application granted granted Critical
Publication of CA2482577C publication Critical patent/CA2482577C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B17/2909Handles
    • A61B2017/2912Handles transmission of forces to actuating rod or piston
    • A61B2017/2923Toothed members, e.g. rack and pinion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B17/2909Handles
    • A61B2017/2925Pistol grips
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B2017/2946Locking means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, 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
    • A61B90/08Accessories or related features not otherwise provided for
    • A61B2090/0807Indication means
    • A61B2090/0811Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument

Abstract

A surgical stapling and severing instrument particularly suited to endoscopic procedures incorporates a handle that produces separate closing and firing motions to actuate an end effector. In particular, the handle produces multiple firing strokes in order to reduce the required amount of force required to fire (i.e:, staple and sever) the end effector. A linked transmission reduces the required handle longitudinal length, yet achieves a rigid, strong configuration when straightened for firing. A traction biased firing mechanism avoids binding in driving this straightened linked rack in cooperation with an anti- backup mechanism, with a lockout mechanism that prevents releasing the closure trigger during firing. Furthermore, an external indicator gives feedback to the surgeon as to how far firing has progressed, as well as providing a manual retraction capability.

Claims (10)

1. A surgical instrument, comprising:
an elongate implement portion responsive to a firing motion and a closure motion;
a firing mechanism operably configured to produce the firing motion between an unfired position and a fully fired position;
a closing mechanism operably configured to close and to open the implement portion;
and a closing release mechanism operably configured to lock the closing mechanism when the implement portion is in the fully closed position, and responsive to an operator command to unlock the closing mechanism only when the firing mechanism is in an unfired position.
2. The surgical instrument of claim 1, wherein said end effector comprises:
an elongate channel connected to said shaft;
an anvil pivotally coupled to said elongate channel for clamping tissue; and a staple cartridge received in said elongate channel;
wherein said firing member distally terminates in a firing bar operably configured to actuate said staple cartridge to form staples in the clamped tissue.
3. The surgical instrument of claim 1, further comprising a firing mechanism operably configured to transfer sequential firing strokes as a distal longitudinal movement into said firing member.
4. The surgical instrument of claim 1, wherein said firing mechanism comprises a means for traction biased coupling of multiple firing trigger actuations by an operator.
5. The surgical instrument of claim 1, wherein said firing mechanism comprises a means for linked rack coupling of firing trigger actuations by an operator to said firing member.
6. The surgical instrument of claim 5, wherein said firing mechanism further comprises a means for traction biased coupling of multiple firing trigger actuations by an operator.
7. A surgical instrument, comprising:
an elongate implement portion responsive to a firing motion and a closure motion;
and a handle portion connected to the elongate implement portion, comprising:
a firing mechanism operably configured to produce the firing motion between an unfired position and a fully fired position, an indicator member including a lockout surface, the indicator member responsive to the firing mechanism being in the unfired position to position the lockout surface in an unlocked position, a closure trigger operably configured to produce the closure motion, moveable between an open position and a closed position, and lockable at the closed position, and an unlocking control moveable from an unactuated to an actuated position to unlock the closure trigger when the lockout surface of the indicator member is in the unlocked position.
8. The surgical instrument of claim 7, wherein the handle further comprises a housing, the unlocking control comprises a locking arm coupled to an exposed actuator, the closure trigger pivotally coupled to the housing and including an exposed actuator, the closure trigger pivotally coupled to the housing and including an upper portion engageable to the locking arm to lock the closure trigger in a closed position.
9. The surgical instrument of claim 8, wherein the indicator member comprises a wheel presenting a discontinuous circular locking surface to the locking arm of the unlocking control.
10. A surgical instrument, comprising:
an elongate implement portion responsive to a firing motion and a closure motion;
a firing mechanism operably configured to produce the firing motion between an unfired position and a fully fired position;
a closing mechanism operably configured to close and to open the implement portion;
and a closing release means to clamp the implement portion is in the fully closed position, and responsive to an operator command to unlock the closing mechanism only when the firing mechanism is in an unfired position.
CA2482577A 2003-09-29 2004-09-27 Surgical stapling instrument having multistroke firing with opening lockout Expired - Fee Related CA2482577C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/674,236 US7434715B2 (en) 2003-09-29 2003-09-29 Surgical stapling instrument having multistroke firing with opening lockout
US10/674,236 2003-09-29

Publications (2)

Publication Number Publication Date
CA2482577A1 true CA2482577A1 (en) 2005-03-29
CA2482577C CA2482577C (en) 2012-06-12

Family

ID=34376836

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2482577A Expired - Fee Related CA2482577C (en) 2003-09-29 2004-09-27 Surgical stapling instrument having multistroke firing with opening lockout

Country Status (9)

Country Link
US (1) US7434715B2 (en)
EP (2) EP1523943B1 (en)
JP (1) JP4850401B2 (en)
CN (1) CN100586382C (en)
AU (2) AU2004216573A1 (en)
BR (1) BRPI0405209B8 (en)
CA (1) CA2482577C (en)
MX (1) MXPA04009531A (en)
PL (1) PL1523943T3 (en)

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