Variable thickness embolic filtering devices and methods of manufacturing the same
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United States of America Patent
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Sep 13, 2011
Grant Date -
Aug 28, 2008
app pub date -
Feb 4, 2008
filing date -
Jun 29, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A strut assembly to be used in conjunction with an embolic filtering device has varying strut thicknesses, with the thickness selected based at least in part on the flexing characteristics of the particular portion of the strut assembly. The strut assembly is formed with patterns having flexing portions and stable portions, with the flexing portions contributing to the flexibility of the strut assembly during delivery and recovery in the patient's vasculature. The stable portions remain relatively unflexed and stiff when being delivered or recovered from the patient's vasculature. The stable portions provide strength and increased radiopacity to the strut assembly which is needed when the strut assembly is deployed in the body vessel. The flexing portions act much like a mechanical hinges in providing the needed flexibility to resiliently bend when being delivered through tortuous anatomy of the patient.
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