Surgery – Instruments – Orthopedic instrumentation
Patent
1995-12-01
1997-11-04
Buiz, Michael
Surgery
Instruments
Orthopedic instrumentation
606 99, A61B 1756
Patent
active
056833997
ABSTRACT:
The present invention provides an insertion tool and an associated acetabular cup implant. The tool includes a housing and an inner expansion pin for expanding the curved ends of resilient expandable arms of a collet on the distal end of the housing. The expandable arms engage corresponding curved surfaces in a groove in the concave surface of an acetabular cup. The tool also includes an actuation assembly which translates a slight rotation of a sleeve member on the housing to longitudinal movement of the expansion pin to radial expansion or contraction of the arms of the collet to engage or disengage the acetabular cup. A positioning assembly is also provided.
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Buiz Michael
Stelkast Incorporated
Woo Julian W.
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