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Surgical stapling instrument having multistroke firing with opening lockout

  • US 7,434,715 B2
  • Filed: 09/29/2003
  • Issued: 10/14/2008
  • Est. Priority Date: 09/29/2003
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • an elongate implement portion responsive to a firing motion and a closure motion;

    a firing mechanism operably configured to produce the firing motion between an unfired position and a fully fired position to eject a staple from a staple cartridge into tissue;

    a closing mechanism operably configured to close and to open the implement portion;

    a closing release mechanism operably configured to lock the closing mechanism when the implement portion is in the fully closed position, and responsive to an operator command to unlock the closing mechanism when the firing mechanism is in an unfired position; and

    a lockout mechanism operably configured to lock the closing release mechanism when;

    (i) the implement portion is in the fully closed position, and(ii) the firing mechanism is in any position other than the unfired position.

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