Circular stapling instruments with secondary cutting arrangements and methods of using same

  • US 8,801,734 B2
  • Filed: 07/30/2010
  • Issued: 08/12/2014
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
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1. A surgical instrument comprising:

  • an elongated shaft defining a central axis and having a distal end portion configured to operably support a circular staple cartridge therein;

    a tissue acquisition shaft rotatably supported within said elongated shaft and having a distal portion that protrudes distally beyond the distal end portion of the elongated shaft;

    at least two tissue acquisition members pivotally attached to said distal portion of the tissue acquisition shaft such that said tissue acquisition members are selectively simultaneously pivotable from a retracted position to deployed positions upon application of a deployment motion thereto;

    a rotatable cutting member operably supported adjacent to said tissue acquisition members; and

    a rotary actuator operably interfacing with said rotatable cutting member such that the rotatable cutting member is selectively rotatable about the central axis upon application of a cutting actuation motion to said rotary actuator.

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