PROSTHETIC VALVES FORMED WITH SUPPORTING STRUCTURE AND ISOTROPIC FILTER SCREEN LEAFLETS
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United States of America Patent
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N/A
Issued Date -
Jul 5, 2012
app pub date -
Dec 23, 2011
filing date -
Jan 5, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In one embodiment of the invention, a prosthetic check valve is disclosed with leaflets cut from filtration screen material with uniform pore size having openings with a dimension inclusively between fifteen and sixty microns. The screen material is made from biocompatible material, such as polyester or polypropylene. One or more outer edges of the leaflet are fused or sealed to prevent fraying of the material and to form a more non-thrombogenic surface. The prosthetic check valve includes a supporting structure to which the leaflets may couple. Prosthetic check valves assembled with the leaflets can be collapsed to a diameter of less than or equal to twenty-nine french (29 f), sterilized, and stored in a collapsed state. The collapsed valve can be implanted without prior rinsing to remove sterilant.
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