A surgical stapling instrument and a staple cartridge and staple for such an instrument

A technology of surgical suturing instruments and staples, which is applied in the field of surgical staples and anastomosis, and can solve problems such as insufficient and increased complexity of staple driving devices

Active Publication Date: 2009-08-05
ETHICON ENDO SURGERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the complexity of the staple driving device, and a simple axial drive mechanism such as in conventional stapling instruments is often insufficient

Method used

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  • A surgical stapling instrument and a staple cartridge and staple for such an instrument
  • A surgical stapling instrument and a staple cartridge and staple for such an instrument
  • A surgical stapling instrument and a staple cartridge and staple for such an instrument

Examples

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Embodiment Construction

[0039] See attached picture, Figures 1 to 4 The basic concept and function of the surgical stapling instrument according to the invention are illustrated with the aid of an embodiment.

[0040] exist figure 1 As can be seen in the figure, the corrugated staple forming surface 2 (having a circular or circular cross-section) of the nail anvil 1 and the corrugated end surface 6 (also having a circular or circular cross-section) of the staple cartridge device 5 can be adapted to each other. The connection of the anvil 1 and the cartridge unit 5 is ensured by a shaft 3 rigidly fixed to the anvil 1 and a liftable trocar 4 (which comprises a trocar shaft) housed in the center of the cartridge unit 5 . A knife 7 with a wavy cutting edge is positioned within the cartridge device 5 . Also, the closed two rows of staples along the undulating end face 6 of the cartridge device 5 are shown by short dashed lines.

[0041] figure 1 The suturing instrument operates in the following manne...

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PUM

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Abstract

A surgical stapling instrument comprises a staple fastening assembly (1, 5; 24) including a cartridge device (5; 30) which comprises at least one row of staples (72, 77) and a generally wavy first tissue interface (34), and an anvil (1; 32) which is movable relative to the cartridge device (5; 30) and having a generally wavy second tissue interface (36) adapted to cooperate with the first tissue interface (34) of the cartridge device (5; 30) for clamping tissue therebetween and forming the ends (74) of the staples (72, 77) exiting from the cartridge device (5; 30), a staple driving device (60; 90) adapted to drive the staples (72, 77) out of the cartridge device (5; 30) towards the anvil (1; 32), wherein the staples comprise one or more non-symmetrical U-shaped staples (77) having two legs (78) with free pointed ends (74) facing toward the anvil (1; 32) and a transverse basis (79) connecting the legs (78), wherein said basis (79) is inclined with respect to the longitudinal direction (81) of the legs (78), such that the basis (79) has a length greater then its projection on a plane (80) perpendicular to the longitudinal direction (81) of the legs (78).

Description

technical field [0001] The present invention relates to a surgical stapling instrument which can be used for applying surgical staples to tissue, in particular for performing anastomosis. The present invention also relates to a staple cartridge device and a surgical staple for such a surgical stapling instrument. Background technique [0002] Typically, in the performance of a surgical anastomotic stapling operation, two sections of lumen or tubular tissue, such as intestinal tissue, are joined together by a closed row of staples. During an anastomosis performed with surgical stapling instruments, two lengths of tubular tissue are clamped together between an anvil provided with an array of staple-forming grooves, and a staple holder or cartridge assembly. The staple holder or staple cartridge device is provided with a plurality of staple receiving slots arranged in a closed row or array into which staples are received. The staple pusher is advanced to drive the staples int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/064A61B17/11A61B17/115
CPCA61B2017/07214A61B17/072A61B17/115A61B17/0644A61B2017/07264A61B2017/07242A61B2017/1157A61B17/1155
Inventor A·帕斯托雷利F·比罗蒂W·B·韦森伯格二世
Owner ETHICON ENDO SURGERY INC
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