Patent ID: 9730745
Date: 2017-08-15
CPC Classifications: A61B

Claim:
1. A bone anchor, comprising: a monolithic tubular shaft defining a bore having a first open end and a second open end opposite to the first open end along a longitudinal axis of the shaft, the shaft including a plurality of openings through a tubular wall of the shaft and spaced apart from the first open end; and a plug member configured to be implanted into a bone with the tubular shaft, wherein the plug member is configured to be inserted into the bore from the first open end and guidable through the bore past at least one of the openings to a first position along the longitudinal axis for closing the bore between the first open end and the second open end while a pathway between the first open end and the at least one of the openings remains open; wherein a first section of the plug member has a different cross-section from a second section of the plug member, such that when the plug member is at the first position, the first section of the plug member abuts a shoulder formed in the bore of the tubular shaft to prevent further movement of the plug member towards the second open end, and the second section of the plug member restricts tilting of the plug member relative to the tubular shaft.