Prosthetic vascular conduit
First Claim
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1. A prosthesis comprising:
- a prosthetic heart valve having a plurality of leaflets for controlling blood flow through the heart valve and an annular portion having a first diameter, the annular portion located at a proximal end of the prosthetic heart valve;
a prosthetic vascular conduit including a terminal collar member radially expandable to receive the prosthetic heart valve, the terminal collar member including a contractible portion radially contractible to engage the annular portion of the prosthetic heart valve such that the prosthetic heart valve is coupled to the conduit; and
a contractible member coupled to the terminal collar member at a location proximal to the annular portion and extending about a circumference of the terminal collar member;
wherein the contractible member is a suturing wire forming a loop configured to enable a practitioner to exert a positive contraction force on the terminal collar member to reduce a diameter of the contractible portion to a second diameter smaller than the first diameter of the annular portion, such that the prosthetic heart valve is captured inside the terminal collar member.
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Abstract
A prosthetic vascular conduit for coupling to a valve having an annular portion includes a terminal collar member, radially expandable to receive the annular portion of the valve. The collar member includes a portion which is radially contractible to capture the annular portion of the valve to couple the valve to the conduit.
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Citations
11 Claims
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1. A prosthesis comprising:
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a prosthetic heart valve having a plurality of leaflets for controlling blood flow through the heart valve and an annular portion having a first diameter, the annular portion located at a proximal end of the prosthetic heart valve; a prosthetic vascular conduit including a terminal collar member radially expandable to receive the prosthetic heart valve, the terminal collar member including a contractible portion radially contractible to engage the annular portion of the prosthetic heart valve such that the prosthetic heart valve is coupled to the conduit; and a contractible member coupled to the terminal collar member at a location proximal to the annular portion and extending about a circumference of the terminal collar member; wherein the contractible member is a suturing wire forming a loop configured to enable a practitioner to exert a positive contraction force on the terminal collar member to reduce a diameter of the contractible portion to a second diameter smaller than the first diameter of the annular portion, such that the prosthetic heart valve is captured inside the terminal collar member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification