Hip and knee joint assemblies incorporating debris collection architecture between the ball and seat interface
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United States of America Patent
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Jan 10, 2017
Grant Date -
Oct 2, 2014
app pub date -
May 21, 2014
filing date -
Nov 8, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A joint implant assembly including a spherical shaped component adapted to securing to an end of a first joint defining bone and a recess shaped component adapted to securing to an end of a second joint defining bone. Each of the components establishes an opposing wear surface, at which microscopic sized particles build up over time resulting from prolonged use of the joint. At least one of the spherical and recess shaped components exhibits a plurality of interior entrapment chambers, each of which including a narrow-most entranceway location communicating with the wear surface. The entrapment chambers further exhibit outwardly widening capture profiles extending within the associated component for securing volumes of the microscopic particles away from a zone defined between the wear surfaces.
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