Hip joint prostheses and methods for manufacturing the same
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United States of America Patent
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Aug 27, 1996
Grant Date -
N/A
app pub date -
Sep 22, 1994
filing date -
Sep 22, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An implantable bone prosthesis, such as an acetabular shell, includes a bone engaging region that is made from a cast metal or metal alloy and an articulation surface that is formed of a ceramic material or a metal that is permanently attached to the metal bone engaging region. The bone engaging region of the prosthesis preferably includes a dampening mechanism to absorb some of the loading forces communicated to the acetabular cavity. The bone prosthesis is formed by a casting process from casting molds that are prepared using a three dimensional printing technique.
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