Patent ID: 6786932
Filing Date: 2004-09-07
Classification: A61B,A61F

Abstract:
An extremity bone end implant comprising:a neck with a neck joint end and a neck bone shaft end; an articulation joint portion attached to the joint end of the neck; a hollow portion, with a hollow portion joint end integral with the neck bone shaft end, and a hollow portion bone shaft end; a tubular shell with a shell joint end integral with the hollow portion bone shaft end, a generally cylindrical passage with a cylindrical passage diameter, a cylindrical passage axis, and a tubular shell bone shaft end; a single shell slot in the tubular shell extending from the tubular shell bone shaft end, through the shell joint end and into the hollow portion; a first clamp flange integral with the tubular shell on a first side of the shell slot; a second clamp flange integral with the tubular shell on a second side of the shell slot; at least one threaded bore in the second clamp flange and in axial alignment with at least one bore through the first clamp flange; a screw passing through the at least one bore through the first clamp flange and screwed into the at least one threaded bore in the second clamp flange, and wherein tightening the screw reduces the cylindrical passage diameter and clamps the extremity bone end implant to a bone shaft received in the generally cylindrical passage; a passage through a hollow portion wall for the injection of fluid into the hollow portion; and wherein the hollow portion is a closed chamber except for the generally cylindrical passage into the hollow portion bone shaft end, the single slot and the passage through the hollow portion wall for the injection of fluid into the hollow portion.