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Surgical stapler with articulation locking mechanism

  • US 10,349,937 B2
  • Filed: 02/10/2016
  • Issued: 07/16/2019
  • Est. Priority Date: 02/10/2016
  • Status: Active Grant
First Claim
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1. A surgical stapler comprising:

  • an actuating device including a firing trigger and an articulation lever;

    an elongated body defining a longitudinal axis and extending distally from the actuating device;

    a tool assembly supported on the elongated body for articulation about an axis transverse to the longitudinal axis in response to actuation of the articulation lever;

    a drive assembly supported within the elongated body, the drive assembly being movable between a retracted position and an advanced position to actuate the tool assembly; and

    an articulation locking mechanism supported on the distal end of the elongated body, the articulation locking mechanism including a locking member that is movable in response to movement of the drive assembly from the retracted position towards the advanced position from an unlocked position disengaged from the tool assembly to a locked position engaged with the tool assembly to prevent further articulation of the tool assembly, wherein the drive assembly includes a drive bar having an upper surface defining a recess, the locking member being positioned within the recess when the drive assembly is in the retracted position.

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