Patent ID: 9095385
Filing Date: 2015-08-04
Classification: A61B,A61F

Abstract:
1. A surgical instrument to implant prosthetic spinal implants, comprising: an elongated body having an inner shaft and an outer shaft defining a longitudinal axis, the outer shaft having open distal and proximal ends forming a first lumen therethrough, the inner shaft disposed within the first lumen of the outer shaft, the inner shaft having open distal and proximal ends defining a first passage therethrough; a handle assembly having a handle and a body portion, the body portion being coaxially aligned with the elongated body, the body portion coupled to the proximal end of the outer shaft, the handle orthogonal to the longitudinal axis; a tip assembly with an outer shaft tip, an inner shaft tip, and a holding tip, the outer shaft tip having open proximal and distal ends defining a second lumen therethrough, the outer shaft tip having a distally extending arm, the inner shaft tip having a second passage therethrough, the inner shaft tip having a recessed area, the holding tip having a third passage therethrough, the inner shaft tip disposed within the second lumen of the outer shaft tip, the distally extending arm slidably received in the recessed area of the inner shaft tip, the recessed area being defined along a majority of the length of the inner shaft tip parallel to the longitudinal axis, a proximal end of the inner shaft tip positioned at the distal end of the inner shaft, a proximal end of the holding tip coupled to a distal end of the inner shaft tip by an articulating connection, a distal end of the distally extending arm coupled to the holding tip, the first, second, and third passages capable of axial alignment; an articulation knob coupled to the inner shaft, where rotational movement of the articulation knob about the longitudinal axis induces longitudinal translation of the outer shaft in relation to the inner shaft causing translation of the outer shaft tip in relation to the inner shaft tip resulting in articulation of the holding tip with respect to the elongated body thereby defining an angle of articulation; and a driveshaft assembly having proximal and distal ends, the proximal end having a coupling knob, the distal end having a threaded tip, the driveshaft assembly extending distally through the first passage, the second passage, and the third passage, the threaded tip extending distally from the holding tip.