| 摘要 |
<p>Apparatus for positioning a prosthetic acetabular cup within an acetabulum during total hip replacement surgery. The apparatus includes a pusher ball (12), a pusher arm (22) affixed to the pusher ball, a positioner arm (18), and a positioner flange (16) affixed to the positioner arm. The apparatus also includes means (54) for removably engaging the flange with the pusher arm to face the flange with the pusher ball. The apparatus further includes adjustable means (20) for releasably affixing the flange facing the ball to define a predetermined angle between the pusher arm and the positioner arm. This affixing means also releasably secures the ball generally mated with the acetabular cup, so that the positioner flange and the positioner arm can be released and removed from the remainder of the apparatus while the pusher ball remains within the acetabular cup to maintain uninterrupted pressure on the acetabular cup via the pusher arm.</p> |
