CA2482704A1 - Surgical stapling instrument having multistroke firing incorporating a traction-biased ratcheting mechanism - Google Patents
Surgical stapling instrument having multistroke firing incorporating a traction-biased ratcheting mechanism Download PDFInfo
- Publication number
- CA2482704A1 CA2482704A1 CA002482704A CA2482704A CA2482704A1 CA 2482704 A1 CA2482704 A1 CA 2482704A1 CA 002482704 A CA002482704 A CA 002482704A CA 2482704 A CA2482704 A CA 2482704A CA 2482704 A1 CA2482704 A1 CA 2482704A1
- Authority
- CA
- Canada
- Prior art keywords
- firing
- surgical instrument
- end effector
- motion
- shaft
- 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
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
- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
- A61B17/072—Surgical 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
- A61B17/07207—Surgical 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
-
- 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
- A61B2017/2923—Toothed members, e.g. rack and pinion
-
- 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
- A61B2017/2925—Pistol grips
Abstract
A surgical stapling and severing instrument particularly suited to endoscopi c 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 orde r 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 mechani sm 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 (19)
1. A surgical instrument, comprising:
an end effector responsive to a longitudinal firing motion to perform a surgical operation;
a shaft distally connected to the end effector;
a firing member within the shaft to transfer the firing motion to the end effector; and a handle proximally connected to the shaft and firing member, comprising:
a housing, a firing control configured for manual movement by an operator in a firing direction and in an opposite return direction, and a firing mechanism frictionally biased to couple with said firing member when said firing control moves in said firing direction.
an end effector responsive to a longitudinal firing motion to perform a surgical operation;
a shaft distally connected to the end effector;
a firing member within the shaft to transfer the firing motion to the end effector; and a handle proximally connected to the shaft and firing member, comprising:
a housing, a firing control configured for manual movement by an operator in a firing direction and in an opposite return direction, and a firing mechanism frictionally biased to couple with said firing member when said firing control moves in said firing direction.
2. The surgical instrument of claim 1, wherein said end effector comprises a stapling device responsive to the longitudinal firing motion to perform the surgical operation of stapling.
3. The surgical instrument of claim 2, wherein said end effector comprises:
an elongate channel connected to said shaft;
un 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.
an elongate channel connected to said shaft;
un 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.
4. The surgical instrument of claim 3, further comprising a closure means of said stapling device.
5. The surgical instrument of claim 1, wherein said firing mechanism is frictionally biased to decouple with said firing member when said firing member is moved in said return direction.
6. The surgical instrument of claim 1, further including a rack movably coupled with said firing member and operably coupling with said firing mechanism when said firing mechanism is actuated.
7. The surgical instrument of claim 1, wherein said handle includes least one friction surface for biasing said firing mechanism into coupling engagement with said firing member in response to movement of said bring control in the firing direction.
8. The surgical instrument of claim 7, wherein said firing member includes a biasing surface, said friction surface engaging a biasing surface to bias said firing mechanism with said firing member.
9. The surgical instrument of claim 8, wherein said firing control further comprises a trigger, an upper portion of said trigger traversing an arc during manual movement, at least a portion of a selected one of a group consisting of said friction and biasing surfaces being arcuate.
10. The surgical instrument of claim 8, wherein a selected one of a group consisting of said friction surface and said biasing surface is deformable.
11. The surgical instrument of claim 10, wherein the selected one of the group consisting of said friction surface and said biasing surface is comprises an elastomer.
12. The surgical instrument of claim 8, wherein the selected one of the group consisting of said friction surface and said biasing surface is smooth.
13. The surgical instrument of claim 8, wherein the selected one of the group consisting of said friction surface and said biasing surface is toothed.
14. The surgical instrument of claim 9, wherein the selected one of the group consisting of said friction surface and said biasing surface has a coefficient of friction between about 0.04 and 0.4.
15. The surgical instrument of claim 8, said biasing surface comprises a wheel.
16. A surgical instrument, comprising:
an end effector responsive to a longitudinal firing motion to perform a surgical operation;
a shaft distally connected to the end effector;
a firing member slidingly receiving by the shaft to transfer the firing motion to the end effector; and a handle proximally connected to the shaft and firing member, comprising:
a rack distally coupled to the firing member, a firing control responsive to an operator to move in a firing direction and a return direction, and a firing mechanism including a pawl fractionally biased to couple the firing control to the rack to impart the firing motion in response to the firing direction and fractionally biased to uncouple the firing control from the rack in response to the return direction.
an end effector responsive to a longitudinal firing motion to perform a surgical operation;
a shaft distally connected to the end effector;
a firing member slidingly receiving by the shaft to transfer the firing motion to the end effector; and a handle proximally connected to the shaft and firing member, comprising:
a rack distally coupled to the firing member, a firing control responsive to an operator to move in a firing direction and a return direction, and a firing mechanism including a pawl fractionally biased to couple the firing control to the rack to impart the firing motion in response to the firing direction and fractionally biased to uncouple the firing control from the rack in response to the return direction.
17. The surgical instrument of claim 16, wherein said end effector comprises a stapling device responsive to the longitudinal firing motion to perform the surgical operation of stapling.
18. The surgical instrument of claim 17, 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.
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.
19. A surgical instrument, comprising:
an end effector responsive to a longitudinal firing motion to perform a surgical operation;
a firing actuator responsive to a user to operably configured to produce the firing motion; and a firing means for frictionally coupling the firing motion of the firing actuator to the end effector.
an end effector responsive to a longitudinal firing motion to perform a surgical operation;
a firing actuator responsive to a user to operably configured to produce the firing motion; and a firing means for frictionally coupling the firing motion of the firing actuator to the end effector.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/673,662 US7000819B2 (en) | 2003-09-29 | 2003-09-29 | Surgical stapling instrument having multistroke firing incorporating a traction-biased ratcheting mechanism |
US10/673,662 | 2003-09-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2482704A1 true CA2482704A1 (en) | 2005-03-29 |
CA2482704C CA2482704C (en) | 2012-06-12 |
Family
ID=34313950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2482704A Expired - Fee Related CA2482704C (en) | 2003-09-29 | 2004-09-28 | Surgical stapling instrument having multistroke firing incorporating a traction-biased ratcheting mechanism |
Country Status (9)
Country | Link |
---|---|
US (1) | US7000819B2 (en) |
EP (1) | EP1520522B1 (en) |
JP (1) | JP4954460B2 (en) |
CN (1) | CN1628617B (en) |
AU (2) | AU2004216571A1 (en) |
BR (1) | BRPI0405218B8 (en) |
CA (1) | CA2482704C (en) |
MX (1) | MXPA04009527A (en) |
PL (1) | PL1520522T3 (en) |
Families Citing this family (878)
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-
2003
- 2003-09-29 US US10/673,662 patent/US7000819B2/en not_active Expired - Lifetime
-
2004
- 2004-09-28 CN CN2004100874863A patent/CN1628617B/en active Active
- 2004-09-28 AU AU2004216571A patent/AU2004216571A1/en not_active Abandoned
- 2004-09-28 CA CA2482704A patent/CA2482704C/en not_active Expired - Fee Related
- 2004-09-29 JP JP2004285041A patent/JP4954460B2/en active Active
- 2004-09-29 MX MXPA04009527A patent/MXPA04009527A/en active IP Right Grant
- 2004-09-29 EP EP04255988.0A patent/EP1520522B1/en active Active
- 2004-09-29 BR BRPI0405218A patent/BRPI0405218B8/en active IP Right Grant
- 2004-09-29 PL PL04255988T patent/PL1520522T3/en unknown
-
2011
- 2011-05-25 AU AU2011202438A patent/AU2011202438B2/en not_active Ceased
Also Published As
Publication number | Publication date |
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CN1628617B (en) | 2010-05-26 |
JP2005103282A (en) | 2005-04-21 |
AU2011202438A1 (en) | 2011-06-16 |
AU2004216571A1 (en) | 2005-04-14 |
EP1520522B1 (en) | 2017-10-18 |
JP4954460B2 (en) | 2012-06-13 |
MXPA04009527A (en) | 2005-07-05 |
CA2482704C (en) | 2012-06-12 |
PL1520522T3 (en) | 2018-02-28 |
BRPI0405218A (en) | 2005-06-07 |
AU2011202438B2 (en) | 2012-06-21 |
BRPI0405218B8 (en) | 2021-06-22 |
CN1628617A (en) | 2005-06-22 |
US7000819B2 (en) | 2006-02-21 |
BRPI0405218B1 (en) | 2014-12-09 |
US20050067458A1 (en) | 2005-03-31 |
EP1520522A1 (en) | 2005-04-06 |
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