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Locking articulation mechanism

  • US 9,027,818 B2
  • Filed: 10/24/2013
  • Issued: 05/12/2015
  • Est. Priority Date: 03/31/2011
  • Status: Active Grant
First Claim
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1. A surgical device comprising:

  • a handle assembly;

    an elongated body extending from the handle assembly;

    a surgical tool assembly at the distal end of the elongated body; and

    an articulation mechanism operably connected to the handle assembly and configured to selectively articulate the surgical tool assembly to at least one predetermined position of a plurality of predetermined positions, the articulation mechanism including;

    a main shaft member mounted for rotation and connected to an articulation linkage;

    a circular locking member configured to be received about the main shaft member and rotationally fixed relative to the elongated body, the locking member defining a plurality of notches around an outer periphery of the locking member; and

    an articulation handle rotationally fixed to the main shaft member and rotatable relative to the locking member, the articulation handle including a movable member receivable within the plurality of notches of the locking member.

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