PERCUTANEOUSLY-DEPLOYABLE PROSTHETIC TRICUSPID VALVE
First Claim
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1. A prosthetic tricuspid valve comprising:
- a structural framework comprising one or more braided nitinol wires, the structural framework arranged to define an outer surface and an inner open region;
a cuff disposed on a proximal end portion of the outer surface, the cuff comprising a flexible covering material;
a plurality of anchor features, the anchor features extending outward from the outer surface, the anchor features configured for piercing tissue; and
a valve assembly disposed within the inner open region, the valve assembly comprising three leaflets that are configured for coaptation with each other,wherein the prosthetic tricuspid valve is reconfigurable between a low-profile delivery configuration for containment within a delivery catheter and an expanded deployed configuration.
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Abstract
Devices and methods for the treatment of heart conditions are provided herein. For example, this document provides devices and methods for treating tricuspid valve regurgitation by percutaneously implanting a prosthetic tricuspid valve.
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Citations
19 Claims
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1. A prosthetic tricuspid valve comprising:
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a structural framework comprising one or more braided nitinol wires, the structural framework arranged to define an outer surface and an inner open region; a cuff disposed on a proximal end portion of the outer surface, the cuff comprising a flexible covering material; a plurality of anchor features, the anchor features extending outward from the outer surface, the anchor features configured for piercing tissue; and a valve assembly disposed within the inner open region, the valve assembly comprising three leaflets that are configured for coaptation with each other, wherein the prosthetic tricuspid valve is reconfigurable between a low-profile delivery configuration for containment within a delivery catheter and an expanded deployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A prosthetic tricuspid valve and deployment system comprising:
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a delivery catheter that defines a lumen therein, the delivery catheter configured for percutaneous use; a prosthetic tricuspid valve, wherein the prosthetic tricuspid valve is reconfigurable between a low-profile delivery configuration for containment within the lumen and an expanded deployed configuration, wherein the prosthetic tricuspid valve comprises; a structural framework comprising one or more braided nitinol wires, the structural framework arranged to define an outer surface and an inner open region; a cuff disposed on a proximal end portion of the outer surface, the cuff comprising a flexible covering material; a plurality of anchor features, the anchor features extending outward from the outer surface, the anchor features configured for piercing tissue; and a valve assembly disposed within the inner open region, the valve assembly comprising three leaflets that are configured for coaptation with each other; and a control string, the control string being slidably engaged with the structural framework such that tensioning the control string can cause the structural framework to contract and slackening the control string can allow the structural framework to expand. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method of implanting a prosthetic tricuspid valve in a patient, the method comprising:
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percutaneously installing a delivery catheter in the patient, wherein the delivery catheter defines a lumen therein, wherein the prosthetic tricuspid valve is disposed within the lumen in a low-profile delivery configuration, wherein the prosthetic tricuspid valve comprises; a structural framework comprising one or more braided nitinol wires, the structural framework arranged to define an outer surface and an inner open region; a cuff disposed on a proximal end portion of the outer surface, the cuff comprising a flexible covering material; a plurality of anchor features, the anchor features extending outward from the outer surface, the anchor features configured for piercing tissue; and a valve assembly disposed within the inner open region, the valve assembly comprising three leaflets that are configured for coaptation with each other; navigating the delivery catheter within the patient such that a distal end of the delivery catheter is position adjacent a native tricuspid valve of the patient; and causing the prosthetic tricuspid valve to emerge from the lumen and to expand within the native tricuspid valve, wherein a majority of the prosthetic tricuspid valve is disposed below an annulus of the native tricuspid valve and within a right ventricle of the patient. - View Dependent Claims (17, 18, 19)
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Specification