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Knife Lockout Mechanisms For Surgical Instrument

  • US 20090302090A1
  • Filed: 06/06/2008
  • Published: 12/10/2009
  • Est. Priority Date: 06/06/2008
  • Status: Active Grant
First Claim
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1. A cartridge assembly for use with a surgical stapling instrument, the cartridge assembly comprising:

  • a channel including a protrusion thereon;

    a cover configured for mechanical engagement with the channel, the cover including a blocking member and including a surface defining a plane, at least a portion of the blocking member being configured to move away from the plane upon contact with the protrusion;

    a staple cartridge configured for mechanical engagement with the cover;

    a knife configured for translation with respect to the cover; and

    wherein the blocking member is configured to substantially prevent distal translation of the knife after the knife has been translated proximally past a predetermined position.

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