Patent ID: 9186138
Filing Date: 2015-11-17
Classification: A61B,A61F,A61L,B25B,C08L,Y10S

Abstract:
1. An end effector for storing and firing a screw fastener, the end effector comprising: an outer tube defining a longitudinal axis; an inner tube assembly rotatably supported within the outer tube, wherein the inner tube assembly houses at least one screw fastener; a cam spiral sub-assembly rotatably supported within the inner tube assembly, wherein the cam spiral sub-assembly includes: wherein rotation of the cam spiral rotates the pilot and the fastener retainer, wherein the fastener retainer includes a pair of opposed longitudinally extending rails configured to guide the screw fastener along the cam spiral sub-assembly; and a cam spiral driver operatively connected to the cam spiral sub-assembly such that rotation of the cam spiral driver rotates the cam spiral sub-assembly, wherein each screw fastener, includes: