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Apparatus for endoscopic procedures

  • US 10,085,752 B2
  • Filed: 09/21/2016
  • Issued: 10/02/2018
  • Est. Priority Date: 03/13/2013
  • Status: Active Grant
First Claim
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1. An end effector for performing a surgical function and being connectable to an electromechanical power source, the end effector comprising:

  • an upper jaw and a lower jaw, at least one of the upper jaw and the lower jaw being movable in relation to the other of the upper jaw and the lower jaw, wherein the lower jaw of the end effector is configured to selectively receive a cartridge assembly;

    a drive beam slidably supported in the lower jaw and being translatable through each of the upper jaw and the lower jaw to move the lower jaw relative to the upper;

    a cartridge assembly configured for loading into the lower jaw, the cartridge assembly including an actuation sled slidably supported therein and being configured to expel at least a portion of a plurality of staples loaded in the cartridge assembly upon a distal movement of the actuation sled from a proximal-most position;

    a drive screw rotatably supported in the lower jaw, wherein the drive beam is threadably supported on the drive screw, whereby rotation of the drive screw results in axial translation of the drive beam, wherein the drive screw defines a proximal coupling socket;

    a proximal coupling hub defining a proximal facing opening;

    a lock actuator having at least a first position and a second position; and

    a lock bar supported in the proximal coupling hub and being operatively engageable by the lock actuator, the lock bar including;

    a first position in which the lock bar does not extend across the opening of the proximal coupling hub; and

    a second position in which the lock bar at least partially extends across the opening of the proximal coupling hub.

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