INSTRUMENT FOR POSITIONING A CUP COMPONENT OF AN ORTHOPAEDIC JOINT PROSTHESIS
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United States of America Patent
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Issued Date -
N/A
app pub date -
Aug 17, 2011
filing date -
Feb 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An instrument for positioning a cup component of an orthopaedic joint prosthesis includes a shaft, a housing attached to the distal end of the shaft, at least two flange portions carried on the shaft on which the cup component can be fixed, and a unitary spring element disposed about the shaft axis and disposed between the at least two flange portions and the axis of the shaft. The housing includes a base plate and extends from the shaft transversely relative to the shaft axis. The at least two flange portions can move relative to the base plate in a direction transverse to the shaft axis between an in-use position, where at least a portion of each of the at least two flange portions contacts the inner surface of the cup component, and a retracted position where the at least a portion of each of the at least two flange portions is moved towards the shaft axis so as to allow the cup component to be released from the instrument. The spring element biases each of the at least two flange portions towards the in-use position.
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