Prosthetic valve for percutaneous insertion
First Claim
1. A prosthetic aortic valve assembly for percutaneous insertion and placement within a fluid passageway of a living body, comprising:
- a valve seat;
a restraining element;
a poppet;
said valve assembly having a first insertion form for percutaneous insertion into the passageway, said first insertion form including a compressed valve seat, a compressed restraining element, and a compressed poppet; and
each element of said valve assembly expanding to a second larger operational form after the assembly is placed within the passageway, said valve seat having means for sealing against the passageway and an opening for sealing engagement with said poppet, said restraining element having means for restraining passage of said poppet therethrough while permitting fluid flow therethrough, said poppet movably restrained between said valve seat and said restraining element, said poppet being movable to seal against said opening in said valve seat to prevent fluid flow therethrough and said poppet being movable to unseat from said valve seat to permit fluid flow therethrough.
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Accused Products
Abstract
A prosthetic valve comprises a poppet, a seat and a restraining element. The poppet, seat and restraining element include an insertion form for percutaneously inserting into a fluid passageway within a living body and an operational form for operating within the fluid passageway. The valve is self-expanding so that upon insertion the valve automatically assumes the operational form. In the operational form the poppet is movably restrained between the valve seat and restraining element. The poppet seals against the valve seat to prevent fluid flow through the valve and unseats from the valve seat to permit fluid flow through the valve.
1314 Citations
16 Claims
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1. A prosthetic aortic valve assembly for percutaneous insertion and placement within a fluid passageway of a living body, comprising:
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a valve seat; a restraining element; a poppet; said valve assembly having a first insertion form for percutaneous insertion into the passageway, said first insertion form including a compressed valve seat, a compressed restraining element, and a compressed poppet; and each element of said valve assembly expanding to a second larger operational form after the assembly is placed within the passageway, said valve seat having means for sealing against the passageway and an opening for sealing engagement with said poppet, said restraining element having means for restraining passage of said poppet therethrough while permitting fluid flow therethrough, said poppet movably restrained between said valve seat and said restraining element, said poppet being movable to seal against said opening in said valve seat to prevent fluid flow therethrough and said poppet being movable to unseat from said valve seat to permit fluid flow therethrough. - View Dependent Claims (2, 3, 4)
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5. A prosthetic aortic valve assembly for percutaneous insertion and placement within a fluid passageway of a living body, comprising:
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a valve seat; a restraining element; a poppet including an inflatable balloon, said balloon assuming the first insertion form when deflated and the second operational form when inflated; means for fixedly disposing said restraining element relative to said valve seat; said valve assembly having a first insertion form, said first insertion form including a compressed valve seat, a compressed restraining element, and a compressed poppet for percutaneous insertion into the passageway; and said valve assembly expanding to a second larger operational form after the assembly is placed within the passageway, said valve seat having means for sealing against the passageway and an opening for sealing engagement with said poppet, said restraining element having means for restraining passage of said poppet there through while permitting fluid flow there through, said poppet movably restrained between said valve seat and said restraining element, said poppet being movable to seal against said opening in said valve seat to prevent fluid flow there through and said poppet being movable to unseat from said valve seat to permit fluid flow therethrough. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A prosthetic aortic valve assembly for percutaneous insertion and placement within a fluid passageway of a living body, comprising:
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a valve seat; a restraining element; a poppet including an inflatable balloon, said balloon assuming the first insertion form when deflated and the second operational form when inflated; said valve assembly having a first insertion form, said first insertion form including a compressed valve seat, a compressed restraining element, and a compressed poppet for percutaneous insertion into the passageway; and said valve assembly expanding to a second larger operational form after the assembly is placed within the passageway, said valve seat having means for sealing against the passageway and an opening for sealing engagement with said poppet, said restraining element having means for restraining passage of said poppet there through while permitting fluid flow there through, said poppet movably restrained between said valve seat and said restraining element, said poppet being movable to seal against said opening in said valve seat to prevent fluid flow there through and said poppet being movable to unseat from said valve seat to permit fluid flow therethrough. - View Dependent Claims (15, 16)
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Specification