Implantable layers and methods for modifying the shape of the implantable layers for use with a surgical fastening instrument

  • US 9,839,423 B2
  • Filed: 02/24/2014
  • Issued: 12/12/2017
  • Est. Priority Date: 02/24/2014
  • Status: Active Grant
First Claim
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1. A method for altering a tissue thickness compensator for use with a surgical instrument, said method comprising the steps of:

  • obtaining a tissue thickness compensator comprised at least partially from a material including a glass transition temperature and a melting temperature, wherein said tissue thickness compensator comprises a first shape;

    heating said material to a temperature higher than said glass transition temperature and lower than said melting temperature;

    applying a modifying member to a tissue-facing side of said tissue thickness compensator;

    manipulating said tissue thickness compensator with said modifying member to a second shape different than said first shape by inducing a localized change in a portion of said tissue thickness compensator in contact with said modifying member;

    allowing said material to cool below said glass transition temperature; and

    releasing said modifying member from said portion of said tissue thickness compensator.

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