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Surgical instrument with stamped double-flange jaws

  • US 9,861,378 B2
  • Filed: 02/02/2016
  • Issued: 01/09/2018
  • Est. Priority Date: 05/01/2012
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • a housing;

    an elongated shaft defining a longitudinal axis and having a proximal portion coupled to the housing;

    an inner shaft member extending at least partially through the elongated shaft, the inner shaft member selectively movable in a longitudinal direction with respect to the elongated shaft;

    a knife configured to move longitudinally with respect to the inner shaft member;

    an end effector supported by a distal portion of the elongated shaft, the end effector comprising;

    an upper jaw member pivotally coupled to the distal portion of the elongated shaft about a pivot axis and including a first pair of laterally spaced flanges; and

    a lower jaw member pivotally coupled to the distal portion of the elongated shaft about the pivot axis and including a second pair of laterally spaced flanges, wherein the first and second pairs of laterally spaced flanges of the jaw members are arranged in an offset configuration such that one flange of the upper jaw member is positioned on a laterally exterior side of a corresponding flange of the lower jaw member, and the other flange of the upper jaw member is positioned on a laterally interior side of the other flange of the lower jaw member; and

    a knife guide disposed at a distal portion of the inner shaft member and defining a longitudinal slot configured to receive the knife therethrough, the inner shaft operably coupled to the end effector via the knife guide and configured to move the knife guide along the longitudinal axis to pivot the jaw members about the pivot axis.

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