Angled instrument assembly

摘要

An angled instrument assembly includes an angled sleeve, a driver shaft, and a tool bit. The angled sleeve includes a straight passage segment that meets an angled passage segment at a junction. The junction includes an inner elbow and an outer elbow. Material is removed from the inner surface of the inner elbow in order to improve the ease with which the driver shaft can be moved in and out of the angled sleeve. The assembly can also include drafted female or male engagement bodies for facilitating the engagement and disengagement of the tool bit with a tool bit engagement assembly located at the distal end of the driver shaft.

主权项

1. An angled instrument assembly comprising:
an angled sleeve having a hollow passage extending therethrough, comprising:
a straight passage segment having a first longitudinal axis and an interior surface;an angled passage segment having a second longitudinal axis and an interior surface; anda junction region connecting the straight passage segment to the angled passage segment, the junction region including an inner elbow and an outer elbow;wherein the second axis forms a first angle with the first axis; andwherein an interior surface of the inner elbow comprises a surface that forms a second angle with the first axis, the second angle being less than the first angle; and a driver shaft configured to be received within the hollow passage of the angled sleeve, comprising:
an elongated shaft body having a proximal end and a distal end; anda tool bit engagement assembly coupled at the distal end of the elongated shaft body,wherein the angled sleeve further comprises a tool bit opening located at the outer elbow of the junction region and configured to allow a tool bit to be passed into the angled passage segment along the second axis.