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SURGICAL STAPLING INSTRUMENT

  • US 20100108740A1
  • Filed: 06/19/2007
  • Published: 05/06/2010
  • Est. Priority Date: 07/07/2006
  • Status: Active Grant
First Claim
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1. A surgical stapling instrument (1) comprising:

  • a frame having a body portion (2) and a handle (3),a staple fastening assembly (4) in the distal region of said instrument, the staple fastening assembly (4) including a cartridge device (8) which comprises at least one closed row (17, 18) of staples and defines a wavy distal end surface (14), and an anvil (9) which defines a wavy proximal staple forming surface (20) substantially matching the distal end surface (14) and which is movable relative to the cartridge device (8) and adapted to cooperate with the cartridge device (8) for forming the ends of the staples exiting from the cartridge device (8),a moving device adapted to move the anvil (9) relative to the cartridge device (8),a staple driving device (27) adapted to drive the staples out of the cartridge device (8) towards the anvil (9),characterized in that said distal end surface (14) and said staple forming surface (20) have a globally wavy shape including two opposite peaks (21) and two opposite valleys (22) angularly spaced at about 90°

    from the adjacent peaks (21) and in that said two-peaks-two-valleys wavy shape is formed by a stepped configuration of said surfaces (14, 20).

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