Leaflet engagement elements and methods for use thereof
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 a proximal region 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;
positioning a proximal end of the anchor further from a left ventricle than a 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
The present invention relates to apparatus for methods for endovascularly replacing a patient'"'"'s heart valve. The apparatus includes an expandable anchor with leaflet engagement elements on the proximal end of the anchor and a replacement valve. The leaflet engagement elements can be used to prevent distal migration and insure proper positioning of the apparatus.
1166 Citations
8 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 a proximal region 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; positioning a proximal end of the anchor further from a left ventricle than a 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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2. 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 a first 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; positioning the first end of the anchor further from a left ventricle than a second 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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3. 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 a proximal 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; positioning the proximal end of the anchor further from a left ventricle than a 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 (4, 5, 6, 7, 8)
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Specification