CA2413140A1 - Surgical stapling instrument - Google Patents

Surgical stapling instrument Download PDF

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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
Application number
CA002413140A
Other languages
French (fr)
Other versions
CA2413140C (en
Inventor
Federico Bilotti
Mark Neurohr
Laszlo Csiky
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 Europe GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2413140A1 publication Critical patent/CA2413140A1/en
Application granted granted Critical
Publication of CA2413140C publication Critical patent/CA2413140C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115Staplers for performing anastomosis in a single operation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115Staplers for performing anastomosis in a single operation
    • A61B17/1155Circular staplers comprising a plurality of staples
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • 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
    • A61B2017/07214Stapler heads
    • A61B2017/07257Stapler heads characterised by its anvil
    • A61B2017/07264Stapler 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.

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.
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).
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.
CA2413140A 2001-11-28 2002-11-28 Surgical stapling instrument Expired - Fee Related CA2413140C (en)

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)

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* Cited by examiner, † Cited by third party
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ATE546099T1 (en) 2012-03-15
JP4531327B2 (en) 2010-08-25
EP1316290A2 (en) 2003-06-04
US20030178465A1 (en) 2003-09-25
AU2002308791B2 (en) 2008-03-06
US6978922B2 (en) 2005-12-27
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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