Patent ID: 8424739
Filing Date: 2013-04-23
Classification: A61B

Abstract:
1. A surgical device comprising: a handle assembly; an elongate body portion extending distally from the handle assembly and defining a first longitudinal axis, the body portion being rotatable in relation to the handle assembly about the first longitudinal axis; a tool assembly defining a second longitudinal axis and being rotatably and pivotally supported on a distal end of the body portion, the tool assembly being pivotal about a pivot axis substantially transverse to the first longitudinal axis of the body portion and rotatable about the second longitudinal axis; an actuation member associated with the tool assembly, the actuation member being operatively connected to the handle assembly and movable to actuate the tool assembly; an outer tube having an opening; and a control mechanism configured to effect independent rotation of the tool assembly, the control mechanism including a hollow tube positioned within the body portion, the hollow tube including a distal end connected to the tool assembly, and a rotation knob configured to activate the control mechanism, the control mechanism having an outer ring gear, a first internal pinion gear, and a second internal pinion gear, the first internal pinion gear meshing with the outer ring gear, the first internal pinion gear being disposed in the opening of the outer tube, and the second internal pinion gear meshing with the first internal pinion gear, the second internal pinion gear being connected to the hollow tube.