CA2560070A1 - Anvil assembly with improved cut ring - Google Patents
Anvil assembly with improved cut ring Download PDFInfo
- Publication number
- CA2560070A1 CA2560070A1 CA002560070A CA2560070A CA2560070A1 CA 2560070 A1 CA2560070 A1 CA 2560070A1 CA 002560070 A CA002560070 A CA 002560070A CA 2560070 A CA2560070 A CA 2560070A CA 2560070 A1 CA2560070 A1 CA 2560070A1
- Authority
- CA
- Canada
- Prior art keywords
- anvil
- assembly according
- cut ring
- layer
- cover
- 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
- A61B17/11—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
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
-
- 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
- A61B17/3205—Excision instruments
- A61B17/32053—Punch like cutting instruments, e.g. using a cylindrical or oval knife
-
- 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
- A61B2017/07257—Stapler heads characterised by its anvil
-
- 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
An anvil assembly for use with a surgical stapler is provided. The anvil assembly includes a cut ring assembly having a body and a cover. The cover has a first layer of material having a first hardness to allow penetration by a knife of a surgical stapler and at least one additional layer of material having a second hardness greater than the first hardness to minimize penetration of the cover by a knife of a surgical stapler.
Claims (22)
1. An anvil assembly comprising:
a head assembly including a housing supporting an anvil plate having a plurality of staple deforming pockets and a cut ring assembly supported within the housing adjacent the anvil plate, the cut ring assembly including a body and a cover fastened to the body, the cover including a first layer formed of a first material having a hardness which allows penetration by a knife of a surgical stapler and at least one additional layer formed of a second harder material having a hardness to minimize penetration by a knife of a surgical stapler.
a head assembly including a housing supporting an anvil plate having a plurality of staple deforming pockets and a cut ring assembly supported within the housing adjacent the anvil plate, the cut ring assembly including a body and a cover fastened to the body, the cover including a first layer formed of a first material having a hardness which allows penetration by a knife of a surgical stapler and at least one additional layer formed of a second harder material having a hardness to minimize penetration by a knife of a surgical stapler.
2. An anvil assembly according to Claim 1, wherein the at least one additional layer includes a second layer and a third layer, the second and third layers being formed of the second harder material to minimize penetration of the cut ring assembly by a knife of a surgical stapler.
3. An anvil assembly according to Claim 2, wherein the first layer of the cover is formed from polypropylene and the second and third layers are formed from a polyester.
4. An anvil assembly according to Claim 3, wherein the first layer is about 0.001 inches in thickness and the second and third layers are each about 0.002 inches in thickness.
5. An anvil assembly according to Claim 1, wherein the cover is fastened to the body by an adhesive.
6. An anvil assembly according to Claim 5, wherein the first layer is fastened to the at least one additional layer by an adhesive.
7. An anvil assembly according to Claim 1, wherein the anvil plate and the cut ring assembly are annular and the cut ring assembly is positioned within a recess defined by the anvil plate.
8. An anvil assembly according to Claim 7, wherein the head assembly further includes a central post extending from the housing, the anvil plate and the cut ring assembly being positioned about the central post.
9. An anvil assembly according to Claim 8, further including an anvil center rod extending outwardly from the central post.
10. An anvil assembly according to Claim 9, wherein the anvil center rod includes a plurality of flexible arms spaced from the central post, the flexible arms being adapted to releasably engage a surgical instrument.
11. An anvil assembly according to Claim 10, wherein the anvil center rod is pivotally secured to the central post such that the head assembly is pivotal from an operative position to a non-operative reduced profile position.
12. An anvil assembly according to Claim 11, further including a biasing member for urging the head assembly to the non-operative position.
13. An anvil assembly according to Claim 12, wherein the head assembly further includes a backup plate positioned about the central post between the housing and the cut ring assembly, the cut ring assembly being fastened to the backup plate.
14. An anvil assembly according to Claim 13, wherein the backup plate is formed of metal.
15. An anvil assembly according to Claim 13, wherein the backup plate is slidable about the central post from a first position to a second position and includes at least one finger, the at least one finger preventing movement of the head assembly from the operative position to the non-operative position when the backup plate is in its first position.
16. A cut ring assembly for use with an anvil assembly comprising:
a body and a cover fastened to the body, the cover including a first layer formed of a first material having a first hardness to allow penetration of the cover by a knife of a surgical stapler and at least one additional layer formed of a second material having a second hardness greater than the first hardness to minimize penetration of the cover by a knife of a surgical stapler.
a body and a cover fastened to the body, the cover including a first layer formed of a first material having a first hardness to allow penetration of the cover by a knife of a surgical stapler and at least one additional layer formed of a second material having a second hardness greater than the first hardness to minimize penetration of the cover by a knife of a surgical stapler.
17. A cut ring assembly according to Claim 16, wherein the first layer of the cover is formed from polypropylene and the at least one second layer is formed from polyester.
18. A cut ring assembly according to Claim 1, wherein the first layer is about 0.001 inches in thickness and the at least one second layer is about 0.002 inches in thickness.
19. A cut ring assembly according to Claim 17, wherein the first and second layers are joined together using an adhesive.
20. A cut ring assembly according to Claim 19, wherein the cover is fastened to the body using an adhesive.
21. A cut ring assembly according to Claim 16, wherein the at least one additional layer includes a second layer and a third layer.
22. A cut ring assembly according to Claim 17, wherein the body is formed from polyethylene.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55456404P | 2004-03-19 | 2004-03-19 | |
US60/554,564 | 2004-03-19 | ||
PCT/US2005/008876 WO2005091986A2 (en) | 2004-03-19 | 2005-03-16 | Anvil assembly with improved cut ring |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2560070A1 true CA2560070A1 (en) | 2005-10-06 |
CA2560070C CA2560070C (en) | 2012-10-23 |
Family
ID=35056714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2560070A Expired - Fee Related CA2560070C (en) | 2004-03-19 | 2005-03-16 | Anvil assembly with improved cut ring |
Country Status (7)
Country | Link |
---|---|
US (2) | US7494038B2 (en) |
EP (1) | EP1729651B1 (en) |
CN (1) | CN100475161C (en) |
AU (1) | AU2005226643B2 (en) |
CA (1) | CA2560070C (en) |
ES (1) | ES2400050T3 (en) |
WO (1) | WO2005091986A2 (en) |
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US7585306B2 (en) | 2003-12-24 | 2009-09-08 | Maquet Cardiovascular Llc | Anastomosis device, tools and methods of using |
US8590764B2 (en) | 2003-12-24 | 2013-11-26 | Boston Scientific Scimed, Inc. | Circumferential full thickness resectioning device |
-
2005
- 2005-03-16 US US11/081,364 patent/US7494038B2/en active Active
- 2005-03-16 ES ES05725805T patent/ES2400050T3/en active Active
- 2005-03-16 WO PCT/US2005/008876 patent/WO2005091986A2/en active Application Filing
- 2005-03-16 EP EP05725805A patent/EP1729651B1/en active Active
- 2005-03-16 CN CNB2005800088717A patent/CN100475161C/en not_active Expired - Fee Related
- 2005-03-16 AU AU2005226643A patent/AU2005226643B2/en not_active Ceased
- 2005-03-16 CA CA2560070A patent/CA2560070C/en not_active Expired - Fee Related
-
2007
- 2007-03-27 US US11/728,698 patent/US8141763B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN100475161C (en) | 2009-04-08 |
AU2005226643A1 (en) | 2005-10-06 |
ES2400050T3 (en) | 2013-04-05 |
US8141763B2 (en) | 2012-03-27 |
WO2005091986A3 (en) | 2006-04-27 |
CN1933785A (en) | 2007-03-21 |
US20070181632A1 (en) | 2007-08-09 |
CA2560070C (en) | 2012-10-23 |
EP1729651A4 (en) | 2012-03-14 |
US20050205639A1 (en) | 2005-09-22 |
WO2005091986A2 (en) | 2005-10-06 |
EP1729651A2 (en) | 2006-12-13 |
EP1729651B1 (en) | 2012-12-05 |
US7494038B2 (en) | 2009-02-24 |
AU2005226643B2 (en) | 2010-07-22 |
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EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20200831 |
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