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Surgical anastomosis stapling instrument

  • US 5,271,544 A
  • Filed: 01/19/1993
  • Issued: 12/21/1993
  • Est. Priority Date: 08/23/1991
  • Status: Expired due to Term
First Claim
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1. In a surgical stapling instrument for applying a plurality of surgical staples to tissue, said instrument including an anvil for forming the staples and a scalpel for cutting the tissue, the improvement comprising:

  • a backup member mounted on said anvil and having a periphery and a distal edge and cooperating with said scalpel to cut the tissue; and

    a plurality of spaced detents located on the distal edge of the periphery of said backup member and projecting radially outward from said backup member for securing said backup member to said anvil to prevent dislodgement of said backup member from said anvil.

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