Transcatheter valve with torsion spring fixation and related systems and methods
First Claim
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1. A prosthetic valve, comprising:
- an expandable stent including an inner lumen and having a first and a second end;
a plurality of support arms each having a first end and a second end, the first ends of the support arms being connected to the first end of the expandable stent, the second ends of the support arms comprising a loop; and
a unitary circular spring configured about a longitudinal axis of the expandable stent attached to the second ends of the support arms, wherein the unitary circular spring is rotatable about the longitudinal axis of the expandable stent through the loops of the support arms;
wherein the expandable stent and the spring can expand radially to a desired diametric configuration in order to anchor the prosthetic valve at an implantation position in a body lumen.
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Abstract
Described is a prosthetic valve, comprising: an expandable stent including an inner lumen and having a first and a second end; and a spring attached to the first end of the expandable stent; wherein the expandable stent and the spring can expand radially to a desired diametric configuration in order to anchor the prosthetic valve at an implantation position in a body lumen. Related systems and methods.
940 Citations
25 Claims
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1. A prosthetic valve, comprising:
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an expandable stent including an inner lumen and having a first and a second end; a plurality of support arms each having a first end and a second end, the first ends of the support arms being connected to the first end of the expandable stent, the second ends of the support arms comprising a loop; and a unitary circular spring configured about a longitudinal axis of the expandable stent attached to the second ends of the support arms, wherein the unitary circular spring is rotatable about the longitudinal axis of the expandable stent through the loops of the support arms; wherein the expandable stent and the spring can expand radially to a desired diametric configuration in order to anchor the prosthetic valve at an implantation position in a body lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A prosthetic valve delivery system, comprising:
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a prosthetic valve, comprising; an expandable stent including an inner lumen and having a first and a second end; a valvular element disposed in the inner lumen of the expandable stent; a plurality of support arms each having a first end and a second end, the first ends of the support arms being connected to the first end of the expandable stent, the second ends of the support arms comprising a loop; and a unitary circular spring configured about a longitudinal axis of the expandable stent attached to the second ends of the support arms, wherein the unitary circular spring is rotatable about the longitudinal axis of the expandable stent through the loops of the support arms; wherein the expandable stent and the spring can expand radially to a desired diametric configuration once deployed in order to anchor the prosthetic heart valve at an implantation position in a body lumen; and a sheath comprising a distal end and a lumen in which the prosthetic valve is positioned prior to deployment of the prosthetic valve and out of which the prosthetic valve is deployed at the implantation position. - View Dependent Claims (15, 16, 17, 18)
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19. A method of implanting a prosthetic valve, the method comprising the steps of:
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inserting a system into a body, the system comprising;
a prosthetic valve, comprising;
an expandable stent including an inner lumen and having a first and a second end;a valvular element disposed in the inner lumen of the expandable stent; a plurality of support arms each having a first end and a second end, the first ends of the support arms being connected to the first end of the expandable stent, the second ends of the support arms comprising a loop; and unitary circular spring configured about a longitudinal axis of the expandable stent attached to the second ends of the support arms, wherein the unitary circular spring is rotatable about the longitudinal axis of the expandable stent through the loops of the support arms; wherein the expandable stent and the spring can expand radially to a desired diametric configuration once deployed in order to anchor the prosthetic valve at an implantation position in a body lumen; and a sheath comprising a distal end and a lumen in which the prosthetic valve is positioned prior to deployment of the prosthetic valve and out of which the prosthetic valve is deployed at the implantation position; advancing the system to the implantation position; and deploying the prosthetic valve to the desired diametric configuration to anchor the prosthetic valve at the implantation position. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification