Staple formation detection mechanisms

  • US 10,456,137 B2
  • Filed: 04/15/2016
  • Issued: 10/29/2019
  • Est. Priority Date: 04/15/2016
  • Status: Active Grant
First Claim
Patent Images

1. A medical instrument, comprising:

  • an elongated channel configured to support a staple cartridge, the staple cartridge comprising a plurality of staples;

    an anvil mechanically coupled to the elongated channel, wherein the anvil defines first and second staple-forming pockets;

    a first electrically conductive circuit element positioned within the first staple-forming pocket, wherein the first electrically conductive circuit element comprises;

    a first electrically insulative material positioned on a surface of the first staple-forming pocket;

    an electrically conductive material positioned on the first electrically insulative material; and

    a second electrically insulative material positioned on the electrically conductive material;

    a second electrically conductive circuit element positioned within the second staple-forming pocket; and

    a control circuit electrically coupled to the first and second electrically conductive circuit elements, wherein the control circuit is configured to;

    determine a state of the first electrically conductive element, wherein the state of the first electrically conductive element corresponds to severance of the first electrically conductive element;

    determine a state of the second electrically conductive element, wherein the state of the second electrically conductive element corresponds to severance of the second electrically conductive element; and

    determine a formation characteristic of one of the plurality of staples based on the state of the first electrically conductive element and the state of the second electrically conductive elements.

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