Self-venting intramedullary cement restrictor
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United States of America Patent
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Oct 26, 1999
Grant Date -
N/A
app pub date -
Jul 28, 1998
filing date -
Jul 29, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A self-venting cement restrictor or bone plug is provided for insertion into the medullary canal of a patient bone during orthopedic surgery. The cement restrictor includes a valve member which accommodates passage of air and body fluids therethrough as the cement restrictor is placed to avoid pressurizing the downstream medullary space. An installation tool is manipulated in the course of cement restrictor installation for shifting the valve member to a closed position, whereby the cement restrictor retains bone cement introduced subsequently under pressure within the upstream medullary space.
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