Vascular closure methods and apparatuses
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United States of America Patent
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Nov 1, 2011
Grant Date -
Oct 8, 2009
app pub date -
Feb 4, 2009
filing date -
Aug 24, 2005
priority date (Note) -
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Abstract
A vascular closure device comprised of a sheath-delivered expandable, umbrella-like device with structural radial members with terminal and non-terminal hooks that engage the vessel wall. Unlike other vascular closure umbrella-type devices that effect closure by opening of the umbrella to cover an opening, the present invention effects closure of the aperture with closure of the umbrella. The closure can be maintained by a retainer lock that slides down the members, causing contraction, bringing the members into a compressed configuration (e.g., a parallel orientation of linear members) and the wound edges together, permitting immediate vascular closure and healing of the blood vessel. The device can be delivered and recovered by an intravascular sheath.
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