FOAM CUSHION FOR INSERTION IN A KNEE JOINT
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United States of America Patent
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Issued Date -
Nov 24, 2011
app pub date -
Nov 24, 2009
filing date -
Nov 24, 2008
priority date (Note) -
Abandoned
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Abstract
A cushion is disclosed for insertion in a patient's knee joint to serve as a buffer between a patient's femur and tibia. The cushion is filled with a substantially incompressible fluid, which can be a foam or a gel or a liquid, like water, which is capable of supporting the entire weight of the patient's body. The cushion is preferably made from a flexible material that allows relative movement between the patient's femur and tibia, while resisting rupture as it supports these two bones as they are moving relative to one another as the knee joint is flexed, bent or extended.
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