#$%^&*AU2012200853A120121018.pdf#####LOCKING ARTICULATION MECHANISM ABSTRACT A surgical device (10) including a handle assembly (20), an elongated body (30) extending from the handle assembly (20), and an articulation mechanism (100) connected to the handle assembly (20) and configured to selectively articulate and lock an articulable tool assembly in one or more positions is provided. The articulation mechanism (100) includes a main shaft member (110) mounted for rotation and connected to an articulation linkage (50), a locking member (130) configured to be received about the shaft portion (114) of the main shaft member (1 10), the locking member (130) defining a plurality of notches (135), an articulation handle (140) fixedly secured to shaft portion (114) of the main shaft member (110) and configured for rotation relative to the locking member (130), and a lug member (150) operatively mounted on the articulation handle (140) and including a locking tab (156) configured to be selectively received within a notch (135) of the plurality of notches (135) formed in the locking member (130).3/10 3/10 155 155a 145 15114 152 135 134 132 132b 1552 12 120 133 1 221 124 114a 115b 114 110 112 12b 113a 1651 165b 16 1620 162 163 I *FIG. 3