Device for the implantation and fixation of prosthetic valves
First Claim
1. A method of treating a native aortic valve, the method comprising:
- positioning a first expandable stent component adjacent the native aortic valve, the first stent component including three struts, wherein the three struts include exactly one strut for placement between each leaflet of the native aortic valve and a wall of an aorta, wherein each strut includes an apex pointing in a proximal direction towards a native heart;
expanding the struts of the first stent component;
after expanding the struts, positioning each strut between the respective leaflet and the wall of the aorta, wherein the struts align the first stent component with the native aortic valve in an axial direction;
positioning a second expandable stent component radially inward of the leaflets of the native aortic valve and of the first stent component, wherein the second stent component includes a prosthetic heart valve; and
expanding the second stent component to press the leaflets of the native aortic valve radially outward toward the first stent component, such that the leaflets of the native aortic valve are positioned between the first stent component and the second stent component.
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Accused Products
Abstract
A device for the transvascular implantation and fixation of prosthetic heart valves having a self-expanding heart valve stent (10) with a prosthetic heart valve (11) at its proximal end is introducible into a patient'"'"'s main artery. With the objective of optimizing such a device to the extent that the prosthetic heart valve (11) can be implanted into a patient in a minimally-invasive procedure, to ensure optimal positioning accuracy of the prosthesis (11) in the patient'"'"'s ventricle, the device includes a self-expanding positioning stent (20) introducible into an aortic valve positioned within a patient. The positioning stent is configured separately from the heart valve stent (10) so that the two stents respectively interact in their expanded states such that the heart valve stent (10) is held by the positioning stent (20) in a position in the patient'"'"'s aorta relative the heart valve predefinable by the positioning stent (20).
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Citations
26 Claims
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1. A method of treating a native aortic valve, the method comprising:
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positioning a first expandable stent component adjacent the native aortic valve, the first stent component including three struts, wherein the three struts include exactly one strut for placement between each leaflet of the native aortic valve and a wall of an aorta, wherein each strut includes an apex pointing in a proximal direction towards a native heart; expanding the struts of the first stent component; after expanding the struts, positioning each strut between the respective leaflet and the wall of the aorta, wherein the struts align the first stent component with the native aortic valve in an axial direction; positioning a second expandable stent component radially inward of the leaflets of the native aortic valve and of the first stent component, wherein the second stent component includes a prosthetic heart valve; and expanding the second stent component to press the leaflets of the native aortic valve radially outward toward the first stent component, such that the leaflets of the native aortic valve are positioned between the first stent component and the second stent component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of treating a native aortic valve, the method comprising:
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introducing a first self-expandable stent component in a collapsed configuration into an aorta, the first stent component including three struts, wherein the three struts include exactly one strut corresponding to each leaflet of the native aortic valve; positioning each of the struts radially outward of each corresponding leaflet of the native aortic valve and radially inward of a vessel wall, wherein the struts rotatably align the first stent component with the native aortic valve; positioning a second self-expandable stent component radially inward of the leaflets of the native aortic valve, wherein the second stent component includes a prosthetic heart valve; and pressing the leaflets of the native aortic valve radially outward toward the first stent component, such that the leaflets of the native aortic valve are between the first stent component and the second stent component. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of treating a native aortic valve, the method comprising:
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introducing a self-expandable first stent component in a collapsed configuration into an aorta, the first stent component including three struts, wherein the three struts include exactly one strut corresponding to each pocket of the native aortic valve, each pocket defined by a portion of the native aortic valve and a wall of the aorta; positioning each of the struts into the corresponding pocket of the native aortic valve, wherein the struts align the first stent component with the native aortic valve in an axial direction and the struts rotatably align the first stent component with the native aortic valve; positioning a self-expandable second stent component radially inward of the pockets of the native aortic valve and of the first stent component, wherein the second stent component includes a prosthetic heart valve; and expanding the second stent component to press the portions of the native aortic valve radially outward toward the first stent component, such that the portions of the native aortic valve are positioned between the first stent component and the second stent component. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification