Prosthetic Heart Valve
First Claim
Patent Images
1. A prosthetic valve comprising:
- an inflow end and an opposing outflow end defining a valve axis extending longitudinally of the ends;
a plurality of valve leaflets;
a collapsible, self-expandable frame assembly configured to support the valve leaflets and defining a plurality of commissure portions; and
a sewing ring portion configured to secure the valve to a surrounding lumen, wherein the plurality of commissure portions are configured to move independently of the sewing ring when the valve is so secured.
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Abstract
Disclosed prosthetic valves can comprise a sewing ring configured to secure the valve to an implantation site. Some disclosed valves comprise a resiliently collapsible frame having a neutral configuration and a collapsed deployment configuration. Some disclosed frames can self-expand to the neutral configuration when released from the collapsed deployment configuration. Collapsing a disclosed valve can provide convenient access to the sewing ring, such as for securing the valve to the implantation site, as well as for the insertion of the valve through relatively small surgical incisions.
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Citations
34 Claims
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1. A prosthetic valve comprising:
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an inflow end and an opposing outflow end defining a valve axis extending longitudinally of the ends; a plurality of valve leaflets; a collapsible, self-expandable frame assembly configured to support the valve leaflets and defining a plurality of commissure portions; and a sewing ring portion configured to secure the valve to a surrounding lumen, wherein the plurality of commissure portions are configured to move independently of the sewing ring when the valve is so secured. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A prosthetic-valve delivery system comprising:
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a prosthetic valve being collapsible and expandable between a collapsed delivery configuration and a neutral configuration, the valve comprising a sewing ring configured to be secured to an implantation site, and a resilient frame configured to cause the valve to expand from the collapsed delivery configuration to the neutral configuration; and a delivery device configured to assist the delivery of the valve to the implantation site when the valve is in the collapsed delivery configuration. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A method of implanting a prosthetic valve at an implantation site within a body lumen, wherein the valve comprises a resilient frame and a sewing ring, wherein the valve is configured to at least partially self-expand to a neutral configuration from a collapsed delivery configuration, the method comprising:
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retaining a valve in a collapsed delivery position; making an incision in a body lumen adjacent an implantation site; inserting the collapsed valve through the incision; securing the sewing ring to surrounding tissue within the body lumen; and releasing the valve from the collapsed delivery configuration such that the valve independently recovers to the neutral configuration within the body lumen. - View Dependent Claims (30, 31, 32, 33, 34)
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Specification