Stent covering for tissue valves

Details Stent covering for tissue valves Stent covering for tissue valves

A - Human Necessities

61

F

3/117

A61F 2/24 (2006.01)

Patent

CA 1229202

STENT COVERING FOR TISSUE VALVES ABSTRACT A prosthetic heart valve comprising a stent having an annular base and a plurality of legs extending upwardly from said base; a valve element circumscribing said stent and attached thereto, said valve element comprising a number of cooperating valve leaflets equal to the number of said legs; and a layer of biologically- compatible material secured to said stent and positioned between said stent and said leaflets, said layer having a smooth, non-abrasive outer surface and covering all of the surfaces of said stent that, in the absence of said layer, would contact the mobile portions of said leaflets during the normal function of the valve.

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