Circular surgical fastening devices with tissue acquisition arrangements

  • US 10,470,770 B2
  • Filed: 01/18/2017
  • Issued: 11/12/2019
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
Patent Images

1. A surgical instrument, comprising:

  • an elongate shaft assembly operably supporting a circular surgical staple cartridge in a distal end thereof;

    a plurality of arcuate tissue acquisition members pivotally attached to said elongate shaft assembly and configured to be selectively radially deployable from a first position wherein said plurality of arcuate tissue acquisition members cooperate to form a continuous ring defining a continuous outer ring diameter and a second deployed position wherein each said arcuate tissue acquisition member extends radially outward from said elongate shaft assembly;

    means for selectively deploying said plurality of arcuate tissue acquisition members between said first position and said second deployed position;

    a tissue cutting member comprising two diametrically opposed ends forming a plurality of tissue cutting edges, said tissue cutting member comprising a tissue cutting diameter that does not exceed said continuous outer ring diameter formed by said plurality of arcuate tissue acquisition members when said plurality of arcuate tissue acquisition members are in said first position; and

    means for selectively rotating said tissue cutting member relative to said plurality of arcuate tissue acquisition members.

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