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Jaw structure with distal closure for electrosurgical instruments

  • US 10,485,607 B2
  • Filed: 04/29/2016
  • Issued: 11/26/2019
  • Est. Priority Date: 04/29/2016
  • Status: Active Grant
First Claim
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1. An end effector for an electrosurgical instrument, comprising:

  • a first jaw, comprising;

    a first energy delivery surface;

    a first body;

    a first distal end;

    a first electrically conductive member protruding from the first body at the first distal end; and

    a first proximal end; and

    a second jaw, comprising;

    a second energy delivery surface comprising an aperture;

    a second body;

    a second distal end;

    a second electrically conductive member protruding from the second body at the second distal end;

    an electrically insulative member extending through the aperture, wherein the electrically insulative member comprises a height extending beyond the second energy delivery surface; and

    a second proximal end, wherein the first and second jaws are pivotally coupled in proximity to the first and second proximal ends, such that at least one of the first and second jaws is movable between a closed position where the first and second electrically conductive members are in contact with one another and the first and second energy delivery surfaces face one another, and an open position where the first and second electrically conductive members are spaced apart, wherein the first and second electrically conductive members cooperate to define a non-uniform gap between the first and second energy delivery surfaces in the closed position, wherein the non-uniform gap comprises a gap height defined by a minimum distance between the first and second energy delivery surfaces, and wherein the gap height is greater than the height of the electrically insulative member.

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