Surgical instrument system configured to evaluate the load applied to a firing member at the initiation of a firing stroke

  • US 10,433,918 B2
  • Filed: 06/12/2014
  • Issued: 10/08/2019
  • Est. Priority Date: 01/10/2007
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • an end effector configured to capture tissue;

    an electric motor comprising a rotatable output;

    a power supply couplable with said electric motor to supply power to said electric motor;

    a firing member operably coupled with said rotatable output, wherein said firing member is movable between an unfired position and a fired position to transect the tissue captured by said end effector, and wherein said firing member experiences a load when transecting the tissue; and

    a sensor configured to evaluate the load applied to said firing member when said firing member is moved from said unfired position, wherein when the load exceeds a threshold value before, but not after, said firing member moves beyond a predetermined distance from said unfired position, said firing member is prevented from moving between said unfired position and said fired position.

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