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Surgical instrument having a common trigger for actuating an end effector closing system and a staple firing system

  • US 20080296345A1
  • Filed: 06/04/2007
  • Published: 12/04/2008
  • Est. Priority Date: 06/04/2007
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • a handle;

    a trigger operably coupled to said handle;

    a closure drive operatively engaged with said trigger, wherein said closure drive is configured to generate a closing motion upon a first actuation of said trigger;

    a firing drive, wherein said firing drive is not operably engaged with said trigger prior to said first actuation of said trigger, wherein said firing drive is configured to engage said trigger as a result of said first actuation, and wherein said firing drive is configured to generate a firing motion upon a second actuation of said trigger;

    an elongate shaft assembly coupled to said handle, wherein said elongate shaft assembly is operably engaged with said firing drive; and

    an end effector coupled to said elongate shaft assembly, said end effector comprising;

    an elongate channel configured to operably support a staple cartridge therein;

    an anvil movably coupled to said elongate channel, wherein said anvil is operably engaged with said closure drive and is movably responsive to said closing motion; and

    a cutting member operably supported within said elongate channel, wherein said cutting member is operably engaged with said elongate shaft assembly and is responsive to said firing motion from said firing drive.

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