Conformable Prostheses For Implanting Two-Piece Heart Valves and Methods for Using Them
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Accused Products
Abstract
A heart valve assembly includes an annular prosthesis and a valve prosthesis. The annular prosthesis includes an annular ring for dilating tissue within a biological annulus and a conformable sewing cuff extending radially from the annular member. The valve prosthesis includes a frame and a valve component. The annular ring is introduced into the biological annulus to dilate tissue surrounding the biological annulus and the sewing cuff conforms to tissue above the biological annulus. Fasteners are directed through the sewing cuff to secure the annular prosthesis to the biological annulus. The annular prosthesis may include a baleen element for biasing fabric on the annular ring outwardly to enhance sealing against the biological annulus. A valve prosthesis is then advanced into the sinus cavity, and secured relative to the annular prosthesis. The sewing cuff may enhance a seal between the valve prosthesis and annular prosthesis.
61 Citations
18 Claims
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1-5. -5. (canceled)
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6. A method for implanting a prosthetic heart valve within a patient, the method comprising the steps of:
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(a) implanting within a biological annulus of the patient a prosthesis for receiving a valve member, the prosthesis comprising (i) an annular member for dilating tissue surrounding the biological annulus, (ii) a sewing cuff extending radially outwardly from the annular member, the sewing cuff being conformable for adopting a shape of tissue surrounding the sinus cavity above the biological annulus; and
(iii) one or more connectors for securing the valve member to the annular member and(b) securing the valve member to the implanted prosthesis. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification