Artificial hip joint fitting equipment - has drilling jig in round cutter head for retaining boss socket

摘要

The equipment comprises a round-headed milling cutter, a round-headed drift, and a femoral headed drift, also a drilling jig in the round head for forming a retaining boss socket, a test shank for the positioning of the femoral portion, and a test femoral piece for the position in the acetabular piece. The blades of the cutter can be so mounted that none forms an extension of another, and they can be of uneven number and spaced at regular angular intervals; alternatively of even number, with the angular interval between one pair different from that between another. The head can have a centering boss.