Methods and Apparatus for Endovascular Heart Valve Replacement Comprising Tissue Grasping Elements
First Claim
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1. A method for endovascularly replacing a patient'"'"'s native heart valve, the method comprising:
- delivering an expandable anchor and a replacement valve to a vicinity of the native heart valve, wherein leaflet engagement elements extend distally from the anchor at a location which is proximal to a distal end of the anchor;
sandwiching native valve leaflets between the distally extending leaflet engagement elements and the anchor; and
expanding the anchor from a collapsed delivery configuration to an expanded configuration to secure the anchor within the native heart valve; and
positioning a proximal end of the anchor further from a left ventricle than the distal end of the anchor;
wherein the replacement valve allows the flow of blood through the replacement valve in a first configuration and prevents the flow of blood through the valve in a second configuration.
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Abstract
A method for endovascularly replacing a patient'"'"'s heart valve including the following steps: endovascularly delivering an anchor and a replacement valve supported within the anchor to a vicinity of the heart valve in a collapsed delivery configuration, the anchor having grasping elements adapted to grasp tissue in a vicinity of the heart valve; expanding the anchor, thereby rotating the grasping elements; and grasping the tissue with the rotating grasping elements.
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6 Claims
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1. A method for endovascularly replacing a patient'"'"'s native heart valve, the method comprising:
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delivering an expandable anchor and a replacement valve to a vicinity of the native heart valve, wherein leaflet engagement elements extend distally from the anchor at a location which is proximal to a distal end of the anchor; sandwiching native valve leaflets between the distally extending leaflet engagement elements and the anchor; and expanding the anchor from a collapsed delivery configuration to an expanded configuration to secure the anchor within the native heart valve; and positioning a proximal end of the anchor further from a left ventricle than the distal end of the anchor; wherein the replacement valve allows the flow of blood through the replacement valve in a first configuration and prevents the flow of blood through the valve in a second configuration. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification