Device and method with reduced pacemaker rate in heart valve replacement
First Claim
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1. A heart valve prosthesis, comprising:
- a stent component comprising a scaffold including cells proximate a proximal end of the stent component,a valve component coupled to an inner surface of the stent component,a seal coupled to an outer surface of the stent component,at least one locator pointing in a proximal direction for positioning the prosthesis at a target site of an endogenous heart valve, andan indicator extending in the proximal direction and configured to move relative to the locator upon contact with the target site,wherein the prosthesis is expandable from a non-expanded state to an expanded state, a shortest distance from a proximal end of the locator to a proximal end of the prosthesis being less in the expanded state than a shortest distance from the proximal end of the locator to the proximal end of the prosthesis in the non-expanded state,wherein, in the non-expanded state, the proximal end of the locator radially overlaps at least a portion of the cells, andwherein, in the expanded state, the shortest distance between the proximal end of the locator and the proximal end of the prosthesis is greater than zero and less than 10 mm.
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Abstract
The disclosure relates to heart valve prostheses with the reduced need of pacemaker implantation and improved means for positioning the replacement heart valve.
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Citations
18 Claims
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1. A heart valve prosthesis, comprising:
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a stent component comprising a scaffold including cells proximate a proximal end of the stent component, a valve component coupled to an inner surface of the stent component, a seal coupled to an outer surface of the stent component, at least one locator pointing in a proximal direction for positioning the prosthesis at a target site of an endogenous heart valve, and an indicator extending in the proximal direction and configured to move relative to the locator upon contact with the target site, wherein the prosthesis is expandable from a non-expanded state to an expanded state, a shortest distance from a proximal end of the locator to a proximal end of the prosthesis being less in the expanded state than a shortest distance from the proximal end of the locator to the proximal end of the prosthesis in the non-expanded state, wherein, in the non-expanded state, the proximal end of the locator radially overlaps at least a portion of the cells, and wherein, in the expanded state, the shortest distance between the proximal end of the locator and the proximal end of the prosthesis is greater than zero and less than 10 mm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A heart valve prosthesis, comprising:
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a stent component comprising a scaffold including cells proximate a proximal end of the stent component, a valve component, a seal configured to prevent reflux of blood between the prosthesis and an endogenous heart valve when the valve component is in a closed position, at least one locator pointing in a proximal direction for positioning the prosthesis at a target site of the endogenous heart valve, the locator comprising an arch attached to, or forming an integral part of, the stent component, and an indicator extending in the proximal direction and configured to move relative to the locator upon contact with the target site, wherein the prosthesis is expandable from a non-expanded state to an expanded state, a shortest distance from a proximal end of the locator to a proximal end of the prosthesis being less in the expanded state than a shortest distance from the proximal end of the locator to the proximal end of the prosthesis in the non-expanded state, wherein, in the non-expanded state, the proximal end of the locator radially overlaps at least a portion of the cells, and wherein, in the expanded state, the proximal end of the locator does not radially overlap the cells and the shortest distance between the proximal end of the locator and the proximal end of the prosthesis is 1 mm to 5 mm.
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Specification