Medical device for treating a heart valve insufficiency
First Claim
1. A method of treating an insufficiency of a native valve with a valve prosthesis supported on a stent including a plurality of first arches, each having an apex oriented in a first direction and an open end that is joined to an open end of an adjacent first arch, and a plurality of second arches, each having an apex oriented in the first direction and an open end that is joined to an open end of an adjacent second arch, wherein the valve prosthesis is directly attached to the plurality of second arches, the method comprising:
- positioning the plurality of first arches within pockets of the native valve, such that the respective apices of the plurality of first arches project toward the pockets of the native valve, and open ends of the plurality of first arches project away from the pockets of the native valve;
clamping at least a portion of the native valve between the plurality of first arches and the plurality of second arches; and
engaging at least a portion of the native valve with a vessel wall.
7 Assignments
0 Petitions
Accused Products
Abstract
A medical device for treating a heart valve insufficiency, with an endoprosthesis which can be introduced into a patient'"'"'s body and expanded to secure a heart valve prosthesis in the patient'"'"'s aorta. In an embodiment, the endoprosthesis has at plurality of positioning arches configured to be positioned with respect to a patient'"'"'s aorta and a plurality of retaining arches to support a heart valve prosthesis. The endoprosthesis includes a first collapsed mode during the process of introducing it into the patient'"'"'s body and a second expanded mode when it is implanted.
387 Citations
39 Claims
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1. A method of treating an insufficiency of a native valve with a valve prosthesis supported on a stent including a plurality of first arches, each having an apex oriented in a first direction and an open end that is joined to an open end of an adjacent first arch, and a plurality of second arches, each having an apex oriented in the first direction and an open end that is joined to an open end of an adjacent second arch, wherein the valve prosthesis is directly attached to the plurality of second arches, the method comprising:
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positioning the plurality of first arches within pockets of the native valve, such that the respective apices of the plurality of first arches project toward the pockets of the native valve, and open ends of the plurality of first arches project away from the pockets of the native valve; clamping at least a portion of the native valve between the plurality of first arches and the plurality of second arches; and engaging at least a portion of the native valve with a vessel wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of treating an insufficiency of a native valve having a plurality of valve leaflets with a valve prosthesis supported on a stent including (i) a plurality of first elements each including first and second arms connected at respective proximal ends thereof to one another, forming a first plurality of closed ends, and connected at respective distal ends thereof to a respective first or second arm of an adjacent first element, forming a first plurality of open ends, and (ii) a plurality of second elements each including third and fourth arms connected at respective proximal ends thereof to one another, forming a second plurality of closed ends, and connected at respective distal ends thereof to a respective third or fourth arm of an adjacent second element, forming a second plurality of open ends, wherein the valve prosthesis is attached to the stent via the second elements, the method comprising:
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positioning each of the closed ends of the plurality of first elements within a respective pocket of the native valve such that the closed ends of the plurality of first elements project towards a respective pocket and the open ends of the plurality of first elements project away from the respective pocket; clamping each of the plurality of valve leaflets between the plurality of first elements and the plurality of second elements; and engaging at least a portion of the native valve leaflets with a vessel wall. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of treating an insufficiency of a native aortic valve having three valve leaflets defining three valve pockets, with a valve prosthesis supported on a stent including (i) three first arches defining three first closed ends adjacent a proximal end of the stent, wherein the three first arches are equally spaced about the circumference of the stent and circumscribe the stent, and (ii) three second arches defining three second closed ends adjacent the proximal end of the stent, each of the three second arches being substantially circumferentially aligned with one of the three first arches, wherein the valve prosthesis is directly attached to the three second arches, the method comprising:
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positioning each of the closed ends of the three first arches within a respective one of the three valve pockets such that each of the closed ends of the three first arches engages the respective one of the three valve pockets; and clamping each of the three valve leaflets between a respective one of the three first arches and a respective one of the three second arches; such that each of the three valve leaflets is disposed radially inward of the three first arches and radially outward the three second arches. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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Specification