Device and method with reduced pacemaker rate in heart valve replacement
AssigneeJenaValve Technology, Inc.
InventorsStefan Schreck, Hussain S. Rangwala, Payam Saffari
Life of this patent
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Abstract
The disclosure relates to heart valve prostheses with the reduced need of pacemaker implantation and/or improved means for positioning the replacement heart valve. A heart valve prosthesis is provided with a stent and at least one locator. The locator has an adapted design for positioning within a cusp of the native aortic valve for implantation at the native heart valve site. Placement of the locators within the cusps preferably prevents movement from the native heart valve site post-implantation, including proximal movement of the prosthesis into the left ventricle.
Claims17
A method of implanting a heart valve prosthesis at a aortic heart valve of a patient, the method comprising:
- advancing the heart valve prosthesis in a non-expanded state to the aortic heart valve via a catheter coupled to an outflow region of the heart valve prosthesis, the heart valve prosthesis comprising a stent, a plurality of locators extending from the outflow region of the stent towards an inflow region of the stent in the non-expanded state, a stent cover covering at least a portion of the stent and comprising a prosthetic valve, and a plurality of locator covers separate from the stent cover and extending along only a portion of each respective locator, each locator cover coupled to and encapsulating an end of a respective locator of the plurality of locators;
- positioning each locator of the plurality of locators within a cusp of the aortic heart valve while the heart valve prosthesis is in the non-expanded state and while each locator is extended radially to capture at least a portion of the respective aortic leaflet between each locator and the stent such that each locator cover of the plurality of locator covers is positioned between the end of the respective locator of the plurality of locators and each respective aortic leaflet of the aortic heart valve;
- and
- releasing, after positioning each locator of the plurality of locators within a respective cusp of the aortic heart valve, the catheter from the outflow region of the heart valve prosthesis such that the heart valve prosthesis expands to an expanded state and each locator cover contacts a respective aortic leaflet of the aortic heart valve for implantation of the heart valve prosthesis,
- wherein each locator cover of the plurality of locator covers is secured to the end of the respective locator of the plurality of locators via at least one suture.
A method of positioning a heart valve prosthesis at a target site of an aortic heart valve of a patient, the method comprising:
- advancing the heart valve prosthesis in a non-expanded state to the aortic heart valve via a catheter coupled to an outflow region of the heart valve prosthesis, the heart valve prosthesis comprising a stent comprising a scaffold of cells and a plurality of locators coupled to the scaffold of cells and extending from the outflow region of the stent towards an inflow region of the stent in the non-expanded state, a stent cover covering at least a portion of the stent and comprising a prosthetic valve, and a plurality of locator covers separate from the stent cover, each locator cover coupled to and encapsulating an end of a respective locator of the plurality of locators;
- positioning each locator of the plurality of locators within a cusp of the aortic heart valve while the heart valve prosthesis is in the non-expanded state such that each locator cover of the plurality of locator covers is positioned between the end of the respective locator of the plurality of locators and a respective aortic leaflet of the aortic heart valve;
- and
- releasing, after positioning each locator of the plurality of locators within a respective cusp of the aortic heart valve, the catheter from the outflow region of the heart valve prosthesis such that the heart valve prosthesis expands to an expanded state and each locator cover contacts the respective aortic leaflet of the aortic heart valve for implantation of the heart valve prosthesis,
- wherein one or more locators of the plurality of locators comprises one or more radiopaque markers on a respective end of the one or more locators, the one or more radiopaque markers covered by a respective locator cover of the plurality of locator covers.
Dependencies are inferred from the claim text.