Instrument for holding an acetabular cup

Details Instrument for holding an acetabular cup Instrument for holding an acetabular cup

1996-02-05

1997-08-19

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 99, 623 18, 623 22, A61B 1758

Patent

active

056582943

ABSTRACT:
An instrument for holding an acetabular cup. An elongate hollow tubular member has a proximal end and a distal end and a generally transverse end face at the distal end. A pair of pins extend axially outwardly from the transverse end face. An elongate rod is mounted within the elongate hollow tubular member for axial movement relative thereto. A ball is attached to one end of the elongate rod proximate the transverse end face and is moveable together with the elongate rod. The ball has a spherical surface for engaging a portion of the inner bearing surface of an acetabular cup that extends radially inwardly relative to the polar axis of the acetabular cup. Retraction of the ball toward the end face of the tubular member draws the cup toward the end face. Corresponding holes in the rim of the cup receive the pins to prevent lateral movement of the cup on the end face of the instrument.

REFERENCES:
patent: 3829904 (1974-08-01), Ling et al.
patent: 4305394 (1981-12-01), Bertuch, Jr.
patent: 4871368 (1989-10-01), Wagner
patent: 5037424 (1991-08-01), Aboczsky
patent: 5061270 (1991-10-01), Aboczky

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