CA2462536A1 - Tilt top anvil for a surgical fastener device - Google Patents
Tilt top anvil for a surgical fastener device Download PDFInfo
- Publication number
- CA2462536A1 CA2462536A1 CA002462536A CA2462536A CA2462536A1 CA 2462536 A1 CA2462536 A1 CA 2462536A1 CA 002462536 A CA002462536 A CA 002462536A CA 2462536 A CA2462536 A CA 2462536A CA 2462536 A1 CA2462536 A1 CA 2462536A1
- Authority
- CA
- Canada
- Prior art keywords
- anvil
- anvil assembly
- anvil head
- surgical stapling
- center rod
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
-
- 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
- A61B2017/07214—Stapler heads
-
- 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
- A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
Abstract
A tilt top anvil assembly is provided for use with a surgical stapling devic e for performing end-to-end anastomosis of tissue. The tilt top anvil assembly included an anvil head, a center rod and a biasing member. The anvil head is pivotally secured to the center rod about a transverse axis which is offset from the longitudinal axis of the center rod. The biasing member is supporte d on the anvil assembly at a position to urge the anvil head to a tilted reduc ed profile position. The anvil assembly includes a first abutment surface which is operatively connected to the anvil head is movable into engagement with a second abutment surface formed on a surgical stapling device during approximation of the anvil assembly to move the anvil head from the tilted reduced profile position to an operative firing position. When the anvil assembly is moved to the unapproximated or spaced position, the biasing memb er is positioned to return the anvil assembly back to its tilted reduced profil e position.
Claims (24)
1. A tilt top anvil assembly comprising:
an anvil head;
a center rod; and an abutment positioned on the anvil assembly;
wherein the anvil head is pivotally secured to the center rod and is pivotable between an operative firing position and a tilted reduced profile position, and the abutment being movable to move the anvil head between the tilted reduced profile position and the operative firing position.
an anvil head;
a center rod; and an abutment positioned on the anvil assembly;
wherein the anvil head is pivotally secured to the center rod and is pivotable between an operative firing position and a tilted reduced profile position, and the abutment being movable to move the anvil head between the tilted reduced profile position and the operative firing position.
2. A tilt top anvil assembly according to Claim 1, further including a biasing member positioned to urge the anvil head to the tilted reduced profile position.
3. A tilt top anvil assembly according to Claim 2, wherein the center rod includes a longitudinal throughbore, the anvil assembly further including an inner sleeve and an outer sleeve, the outer being slidably positioned within the center rod throughbore and being operably connected to the anvil head and the inner sleeve being slidably positioned within the outer sleeve and being operably connected to the anvil head, wherein the biasing member is positioned to urge the inner and outer sleeves to a position to move the anvil head to the tilted reduced profile position.
4. A tilt top anvil assembly according to Claim 3, further including a drive link pivotally connected between the outer sleeve and the anvil head and a return link pivotally connected between the anvil head and the inner sleeve.
5. A tilt top anvil assembly according to Claim 4, wherein the abutment is positioned on the outer sleeve, the abutment being positioned to engage a surface on a surgical stapling device during approximation of the anvil assembly to move the anvil assembly from the tilted reduced profile position to the operative firing position.
6. A tilt top anvil assembly according to Claim 1, wherein the anvil head is pivotally secured to the center rod by a pivot member, the pivot member having a transverse axis which is offset from the longitudinal axis of the center rod.
7. A tilt top anvil assembly according to Claim 1, wherein the center rod includes a guide collar having a plurality of splines.
8. A tilt top anvil assembly according to Claim 1, wherein the anvil head includes a cutting ring positioned to engage a knife provided on a surgical stapling device.
9. A tilt top anvil assembly according to Claim 1, wherein the center rod includes at least one through bore dimensioned to receive a suture.
10. A tilt top anvil assembly according to Claim 1, wherein in the tilted reduced profile position, an angle .THETA. defined between the longitudinal axis of the anvil assembly and a plane defined by a tissue contact surface of the anvil head is not less than about 20°.
11. A surgical stapling device comprising:
a handle portion;
an endoscopic body portion extending distally from the handle portion;
a shell assembly supported on the distal end of the endoscopic portion, the shell assembly housing a plurality of surgical fasteners; and a tilt top anvil assembly configured to be positioned adjacent the shell assembly, the tilt top anvil assembly including an anvil head, and a center rod, the anvil head being pivotally secured to the center rod and being pivotable between an operative firing position and a tilted reduced profile position, the anvil assembly including an abutment positioned to move the anvil head from the tilted reduced profile position to the operative firing position in response to approximation of the anvil assembly and the shell assembly.
a handle portion;
an endoscopic body portion extending distally from the handle portion;
a shell assembly supported on the distal end of the endoscopic portion, the shell assembly housing a plurality of surgical fasteners; and a tilt top anvil assembly configured to be positioned adjacent the shell assembly, the tilt top anvil assembly including an anvil head, and a center rod, the anvil head being pivotally secured to the center rod and being pivotable between an operative firing position and a tilted reduced profile position, the anvil assembly including an abutment positioned to move the anvil head from the tilted reduced profile position to the operative firing position in response to approximation of the anvil assembly and the shell assembly.
12 12. A surgical stapling device according to Claim 10, wherein the anvil assembly includes a biasing member which is positioned to urge the anvil head to the tilted reduced profile position.
13. A surgical stapling device according to Claim 12, wherein the center rod includes a longitudinal throughbore, the anvil assembly further including an inner sleeve and an outer sleeve, the outer sleeve being slidably positioned within the center rod throughbore and being operably connected to the anvil head and the inner sleeve being slidably positioned within the outer sleeve and being operably connected to the anvil head, wherein the biasing member is positioned to urge the inner and outer sleeves to a position to move the anvil head to the tilted reduced profile position.
14. A surgical stapling device according to Claim 13, further including a drive link pivotally connected between the outer sleeve and the anvil head and a return link pivotally connected between the anvil head and the inner sleeve.
15. A surgical stapling device according to Claim 16, wherein the abutment is positioned on the outer sleeve, the abutment being positioned to engage a surface formed on the surgical stapling device during approximation of the anvil assembly to move the anvil assembly from the tilted reduced profile position to the operative firing position.
16. A surgical stapling device according to Claim 17, wherein the anvil head is pivotally secured to the center rod by a pivot member, the pivot member having a transverse axis which is offset from the longitudinal axis of the center rod.
17. A surgical stapling device according to Claim 12, wherein the center rod includes a guide collar having a plurality of splines.
18. A surgical stapling device according to Claim 12, wherein the anvil head includes a cutting ring positioned to engage a knife provided on the surgical stapling device.
19. A surgical stapling device according to Claim 12, wherein the center rod includes at least one through bore dimensioned to receive a suture.
20. A surgical stapling device according to Claim 12, wherein the abutment member includes a first abutment member supported on the tilt top anvil assembly and a second abutment member supported adjacent the shell assembly, the first abutment member being operably connected to the anvil head and being movable during movement of the anvil assembly from a position spaced from the shell assembly to an approximated position into engagement with the second abutment member to move the anvil head from the tilted reduced profile position to the operative firing position.
21. A surgical stapling device according to Claim 20, further including an annular sleeve supported within the shell assembly, the second abutment member being formed on the annular sleeve.
22. A surgical stapling device according to Claim 21, wherein the annular sleeve is movable from an extended position to a retracted position, a second biasing member being positioned to urge the annular sleeve to the extended position.
23. A surgical stapling device according to Claim 22, wherein the second biasing member has a greater compressive strength than the first biasing member such that during movement of the anvil assembly from the spaced to the approximated position, when the first abutment member engages the second abutment member, the anvil head is moved from the tilted reduced profile position to the operative firing position prior to movement of the annular sleeve from the extended position to the retracted position.
24. A tilt top anvil assembly according to Claim 11, wherein in the tilted reduced profile position, an angle .THETA. defined between the longitudinal axis of the anvil assembly and a plane defined by a tissue contact surface of the anvil head is not less than about 20°.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32772701P | 2001-10-05 | 2001-10-05 | |
US60/327,727 | 2001-10-05 | ||
PCT/US2002/032033 WO2003030745A1 (en) | 2001-10-05 | 2002-10-04 | Tilt top anvil for a surgical fastener device |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2462536A1 true CA2462536A1 (en) | 2003-04-17 |
CA2462536C CA2462536C (en) | 2010-03-30 |
Family
ID=23277778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2462536A Expired - Fee Related CA2462536C (en) | 2001-10-05 | 2002-10-04 | Tilt top anvil for a surgical fastener device |
Country Status (9)
Country | Link |
---|---|
US (3) | US6957758B2 (en) |
EP (1) | EP1437970B1 (en) |
JP (1) | JP4346439B2 (en) |
AU (1) | AU2002362751B2 (en) |
CA (1) | CA2462536C (en) |
DE (1) | DE60238550D1 (en) |
ES (1) | ES2357343T3 (en) |
MX (1) | MXPA04003176A (en) |
WO (1) | WO2003030745A1 (en) |
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-
2002
- 2002-10-04 EP EP02800943A patent/EP1437970B1/en not_active Expired - Lifetime
- 2002-10-04 ES ES02800943T patent/ES2357343T3/en not_active Expired - Lifetime
- 2002-10-04 WO PCT/US2002/032033 patent/WO2003030745A1/en active Application Filing
- 2002-10-04 MX MXPA04003176A patent/MXPA04003176A/en active IP Right Grant
- 2002-10-04 US US10/491,253 patent/US6957758B2/en not_active Expired - Lifetime
- 2002-10-04 DE DE60238550T patent/DE60238550D1/en not_active Expired - Lifetime
- 2002-10-04 CA CA2462536A patent/CA2462536C/en not_active Expired - Fee Related
- 2002-10-04 JP JP2003533782A patent/JP4346439B2/en not_active Expired - Fee Related
- 2002-10-04 AU AU2002362751A patent/AU2002362751B2/en not_active Ceased
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2005
- 2005-06-09 US US11/148,741 patent/US7325713B2/en not_active Expired - Lifetime
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2007
- 2007-05-18 US US11/804,386 patent/US7516877B2/en not_active Expired - Fee Related
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CA2462536C (en) | 2010-03-30 |
US20070272722A1 (en) | 2007-11-29 |
EP1437970A1 (en) | 2004-07-21 |
US20050279803A1 (en) | 2005-12-22 |
JP4346439B2 (en) | 2009-10-21 |
US6957758B2 (en) | 2005-10-25 |
DE60238550D1 (en) | 2011-01-20 |
US7516877B2 (en) | 2009-04-14 |
EP1437970B1 (en) | 2010-12-08 |
MXPA04003176A (en) | 2004-07-08 |
AU2002362751B2 (en) | 2008-07-03 |
ES2357343T3 (en) | 2011-04-25 |
WO2003030745A1 (en) | 2003-04-17 |
US20040195289A1 (en) | 2004-10-07 |
JP2005505336A (en) | 2005-02-24 |
US7325713B2 (en) | 2008-02-05 |
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