Vessel occlusion device and method of using same
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United States of America Patent
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May 9, 2017
Issued Date -
N/A
app pub date -
Apr 2, 2015
filing date -
Oct 17, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved embolic filter frame is provided. The filter frame provides enhanced longitudinal compliance, improved sealing, low profile delivery, and short deployed length. The looped support struts have high “radial” stiffness with low “longitudinal” stiffness. When deployed, the frame exerts a relatively high stress onto a vessel wall to maintain an effective seal, yet remains longitudinally compliant. Minor displacements of the support wire or catheter are therefore not translated to the filter. The looped support struts elongate when tensioned and assume a compressed and essentially linear form. When the delivery catheter constraint is removed, the struts “snap open” and assume a looped configuration, exerting a high degree of force onto the vessel wall, creating an enhanced filter to vessel wall seal.
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