Reinforced spacer for stem-type prosthetic implants
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United States of America Patent
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Jun 20, 1995
Grant Date -
N/A
app pub date -
Mar 8, 1993
filing date -
Mar 8, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A spacer for use in the centering of the far end portion of the stem of a prosthetic implant is molded of a synthetic polymeric material compatible with the cement employed to affix the prosthetic implant within the natural bone and includes a post for coupling the spacer with the stem, a flanged spacer portion for extending longitudinally and radially beyond the stem to engage the natural bone for centering the stem, and a reinforcing core extending longitudinally into the post and into the flanged spacer portion to reinforce the spacer against stresses to which the spacer is subjected, especially at a location between the post and the flanged spacer portion of the spacer, during implant and during subsequent curing of the cement.
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