CA2413140A1 - Surgical stapling instrument - Google Patents
Surgical stapling instrument Download PDFInfo
- Publication number
- CA2413140A1 CA2413140A1 CA002413140A CA2413140A CA2413140A1 CA 2413140 A1 CA2413140 A1 CA 2413140A1 CA 002413140 A CA002413140 A CA 002413140A CA 2413140 A CA2413140 A CA 2413140A CA 2413140 A1 CA2413140 A1 CA 2413140A1
- Authority
- CA
- Canada
- Prior art keywords
- staples
- stapling instrument
- anvil
- instrument according
- cartridge device
- 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
- A61B17/115—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
- A61B17/32—Surgical cutting instruments
-
- 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
- A61B2017/07264—Stapler heads characterised by its anvil characterised by its staple forming cavities, e.g. geometry or material
Abstract
A surgical stapling instrument comprises a frame having a body portion and a handle. A staple fastening assembly is provided in the distal region of the instrument and includes a cartridge device, which comprises at least one closed row (10, 12) of staples, and an anvil. The anvil is movable relative to the cartridge device and is adapted to cooperate with the cartridge device for forming the ends of the staples exiting from the cartridge device. A knife, which has a closed cutting edge, is contained within the cartridge device and is positioned such that there is at least one closed row (10, 12) of staples on the outside of the cutting edge. It can be moved towards the anvil.
The line along which the closed row (10, 12) of staples is arranged has a stepped shape, leaving a plane perpendicular to the longitudinal axis of the staple fastening assembly, such that this line has a larger total length than the projection of this line onto this plane. This provides a greater flexibility of the anastomotic site and less tension during instrument removal, alleviating the incidence of clinical complications.
The line along which the closed row (10, 12) of staples is arranged has a stepped shape, leaving a plane perpendicular to the longitudinal axis of the staple fastening assembly, such that this line has a larger total length than the projection of this line onto this plane. This provides a greater flexibility of the anastomotic site and less tension during instrument removal, alleviating the incidence of clinical complications.
Claims (22)
1. A surgical stapling instrument comprising:
- a frame having a body portion and a handle, - a staple fastening assembly (1) in the distal region of said instrument, the staple fastening assembly (1) including a cartridge device (2) which comprises at least one closed row (10, 12) of staples, and an anvil (4) which is movable relative to the cartridge device (2) and is adapted to coo-perate with the cartridge device (2) for forming the ends of the staples exiting from the cartridge device (2), - a moving device adapted to move the anvil (4) relative to the cartridge device (2), - a staple driving device (30) adapted to drive the staples out of the cartridge device (2) towards the anvil (4), - a knife, which has a closed cutting edge, is contained within the cartridge device (2) and is positioned such that there is at least one closed row (10, 12) of staples on the outside of the cutting edge, and - a knife actuating device (30) adapted to move the knife towards the anvil (4), - characterized in that the line along which the closed row (10, 12) of staples is arranged has a stepped shape, leaving a plane perpendicular to the longitudinal axis of the staple fastening assembly (1), such that said line has a larger total length than the projection of said line onto said plane.
- a frame having a body portion and a handle, - a staple fastening assembly (1) in the distal region of said instrument, the staple fastening assembly (1) including a cartridge device (2) which comprises at least one closed row (10, 12) of staples, and an anvil (4) which is movable relative to the cartridge device (2) and is adapted to coo-perate with the cartridge device (2) for forming the ends of the staples exiting from the cartridge device (2), - a moving device adapted to move the anvil (4) relative to the cartridge device (2), - a staple driving device (30) adapted to drive the staples out of the cartridge device (2) towards the anvil (4), - a knife, which has a closed cutting edge, is contained within the cartridge device (2) and is positioned such that there is at least one closed row (10, 12) of staples on the outside of the cutting edge, and - a knife actuating device (30) adapted to move the knife towards the anvil (4), - characterized in that the line along which the closed row (10, 12) of staples is arranged has a stepped shape, leaving a plane perpendicular to the longitudinal axis of the staple fastening assembly (1), such that said line has a larger total length than the projection of said line onto said plane.
2. Stapling instrument according to claim 1, characterized in that said projection of said line onto said plane is circular.
3. Stapling instrument according to claim 1 or 2, characterized in that the anvil (4) has a stepped staple-forming surface (43) which matches the stepped shape of the line along which the closed row (10, 12) of staples is arranged.
4. Stapling instrument according to one of claims 1 to 3, characterized in that the line defining the cutting edge of the knife has a stepped shape and runs essentially in parallel to the line along which the closed row (10, 12) of staples is arranged.
5. Stapling instrument according to one of claims 1 to 4;
characterized in that the staples of a closed row (12) of staples are arranged at different positions, measured along the longitudinal axis of the staple fastening assembly (1).
characterized in that the staples of a closed row (12) of staples are arranged at different positions, measured along the longitudinal axis of the staple fastening assembly (1).
6. Stapling instrument according to one of claims 1 to 5, characterized in that the staples of a closed row (10) of staples are arranged with gaps (18) and/or protrusions (19) in between adjacent staples (14, 15)/(15, 16), wherein each gap (18) is defined by a recess (18) in the surface of the cartridge device (2) and the anvil (4) has a protrusion (48) fitting into that recess (18), and wherein each protrusion (19) emerges from the surface of the cartridge device (2) and the anvil (4) has a recess (49) for accomodating that protrusion (19).
7. Stapling instrument according to one of claims 1 to 6, characterized inj that the staple driving device (30) is adapted to drive the staples out of the cartridge device (2) such that each staple is moved essentially in parallel to the longitudinal axis of the staple fastening assembly (1).
8. Stapling instrument according to claim 7, characterized in that the staple driving device (30) comprises pushers (36, 38, 39) for driving the staples.
9. Stapling instrument according to claim 8, characterized by at least two groups of pushers (38, 39) having different lengths.
10. Stapling instrument according to claim 8 or 9, characterized in that the pushers (36, 38, 39) are integrally combined in a sleeve structure (30).
11. Stapling instrument according to one of claims 1 to 10, characterized in that the staple driving device (30) is adapted to drive the staples of a closed row (10, 12) of staples essentially simultaneously out of the cartridge device (2).
12. Stapling instrument according to one of claims 1 to 11, characterized by at least two closed rows (10, 12) of staples, wherein the staples of adjacent rows (10, 12) are staggered with respect to each other.
13. Stapling instrument according to one of claims 1 to 12, characterized in that the anvil (4) comprises a counterpart adapted to accomodate the cutting edge of the knife.
14. Stapling instrument according to one of claims 1 to 13, cha-racterized in that the staple fastening assembly (1) is removably mounted in the distal end region of the body portion.
15. Stapling instrument according to one of claims 1 to 14, cha-racterized in that the anvil (4) is removable.
16. Stapling instrument according to claim 15, characterized in that the anvil comprises a shaft fitting onto a peg protruding from the cartrige device, which peg preferably comprises a mandrel.
17. Stapling instrument according to one of claims 1 to 16, cha-racterized in that the cartridge device (2) comprises a removable cartridge containing the staples.
18. Staple fastening assembly, characterized by the features of the staple fastening assembly (1) as defined in one of claims 1 to 17.
19. Anvil, characterized by the features of the anvil (4) as defined in one of claims 1 to 17.
20. Cartridge device, characterized by the features of the cartridge device (2) as defined in one of claims 1 to 17.
21. Cartridge, which is adapted to the stapling instrument ac-cording to claim 17.
22. Knife, characterized by the features of the knife as defined in one of claims 1 to 17.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10158246A DE10158246C1 (en) | 2001-11-28 | 2001-11-28 | Surgical stapling instrument |
DE10158246.3 | 2001-11-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2413140A1 true CA2413140A1 (en) | 2003-05-28 |
CA2413140C CA2413140C (en) | 2011-03-08 |
Family
ID=7707186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2413140A Expired - Fee Related CA2413140C (en) | 2001-11-28 | 2002-11-28 | Surgical stapling instrument |
Country Status (7)
Country | Link |
---|---|
US (2) | US6978922B2 (en) |
EP (1) | EP1316290B1 (en) |
JP (1) | JP4531327B2 (en) |
AT (1) | ATE546099T1 (en) |
AU (1) | AU2002308791B2 (en) |
CA (1) | CA2413140C (en) |
DE (1) | DE10158246C1 (en) |
Families Citing this family (756)
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USRE39841E1 (en) | 2007-09-18 |
EP1316290A3 (en) | 2003-08-13 |
EP1316290B1 (en) | 2012-02-22 |
JP2003199749A (en) | 2003-07-15 |
CA2413140C (en) | 2011-03-08 |
DE10158246C1 (en) | 2003-08-21 |
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