Patent ID: 8348124
Filing Date: 2013-01-08
Classification: A61B,Y10T

Abstract:
1. A surgical instrument for surgically joining tissue, the surgical instrument comprising: a handle assembly; an elongated portion extending distally from the handle assembly and defining a longitudinal axis; a drive rod extending distally from the handle assembly and extending at least partially through the elongated portion; an end effector disposed adjacent a distal portion of the elongated portion, the end effector including a first jaw member and a second jaw member, at least one jaw member being movable with respect to the other jaw member between spaced and approximated positions; and a drive assembly, a proximal end of the drive assembly disposed in mechanical cooperation with a distal end of the drive rod, and a distal portion of the drive assembly disposed in mechanical cooperation with the end effector, the drive assembly including an input portion, an output portion and a gear system disposed therebetween, the gear system including an input gear configured to engage the input portion of the drive assembly, and an output gear configured to engage the output portion of the drive assembly, and wherein the gear ratio of the output gear to the input gear is greater than 1:1.