ARTIFICIAL HIP JOINT
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United States of America Patent
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N/A
Issued Date -
Oct 1, 2015
app pub date -
Oct 24, 2013
filing date -
Oct 31, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An artificial hip joint includes a stem having a neck portion which has a truncated conical outer circumferential surface decreased in diameter toward a tip thereof; a head provided with a concavity in which the neck portion is inserted, an inner surface of the concavity including a truncated conical inner circumferential surface decreased in diameter toward an insertion direction of inserting the neck portion; and a sleeve inserted between the outer circumferential surface of the neck portion and the inner circumferential surface of the head. The sleeve has an inner circumferential portion which makes contact with the outer circumferential surface of the neck portion, and an outer circumferential portion which makes contact with the inner circumferential surface of the head, a starting end of the outer circumferential portion being located at a position retracting from an opening portion of the concavity in the insertion direction.
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