COLLAPSIBLE-EXPANDABLE PROSTHETIC HEART VALVES WITH STRUCTURES FOR CLAMPING NATIVE TISSUE
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Accused Products
Abstract
A prosthetic heart valve is designed to be circumferentially collapsible for less invasive delivery into the patient. At the implant site the valve re-expands to a larger circumferential size, i.e., the size that it has for operation as a replacement for one of the patient'"'"'s native heart valves. The valve includes structures that, at the implant site, extend radially outwardly to engage tissue structures above and below the native heart valve annulus. These radially outwardly extending structures clamp the native tissue between them and thereby help to anchor the prosthetic valve at the desired location in the patient.
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Citations
20 Claims
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1. (canceled)
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2. A prosthetic heart valve, comprising
a stent having an inflow end and an outflow end; -
a valve element mounted within the stent; a skirt at the inflow end of the stent; and a sealing ring at the inflow end of the stent, the sealing ring being positioned on the stent to impede paravalvular leakage. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A prosthetic heart valve, comprising
a stent having an inflow end and an outflow end; -
a valve element mounted within the stent; and a skirt at the inflow end of the stent, the skirt having a chamber and extra sealing capacity to prevent paravalvular leakage. - View Dependent Claims (18, 19, 20)
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Specification