Methods for treating a heart valve insufficiency or stenosis
First Claim
1. A method of implanting an endoprosthesis including exactly three positioning arches, exactly three retaining arches, exactly three connecting struts, a valve prosthesis directly attached to each of the exactly three retaining arches, and a plurality of retaining elements, the method comprising:
- positioning the endoprosthesis relative to a native valve;
manipulating a handle of a catheter to move a first sleeve element to uncover the positioning arches;
positioning the positioning arches within pockets of the native valve;
manipulating the handle to move a second sleeve element to uncover the retaining arches to allow the retaining arches and the valve prosthesis to expand, wherein each of the exactly three retaining arches includes an apex axially aligned along a longitudinal direction of the endoprostesis with a respective apex of one of the exactly three positioning arches;
clamping a plurality of native leaflets of the native valve between the positioning arches and the retaining arches; and
manipulating the handle to further move the first sleeve to uncover the plurality of retaining elements;
wherein each of the exactly three connecting struts connects two of the positioning arches at a first axial location along the longitudinal direction and connects two of the retaining arches at a second axial location along the longitudinal direction, different from the first axial location.
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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 with a catheter. In an embodiment, the endoprosthesis has a 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 collapsed mode during the process of introducing it into the patient'"'"'s body and an expanded mode when it is implanted. The endoprosthesis may be introduced into a patient'"'"'s body and expanded via a catheter. In an embodiment, the catheter has first and second slide mechanisms configured to independently manipulate first and second sleeve elements to sequentially expand the endoprosthesis from the collapsed mode to the expanded mode.
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Citations
22 Claims
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1. A method of implanting an endoprosthesis including exactly three positioning arches, exactly three retaining arches, exactly three connecting struts, a valve prosthesis directly attached to each of the exactly three retaining arches, and a plurality of retaining elements, the method comprising:
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positioning the endoprosthesis relative to a native valve; manipulating a handle of a catheter to move a first sleeve element to uncover the positioning arches; positioning the positioning arches within pockets of the native valve; manipulating the handle to move a second sleeve element to uncover the retaining arches to allow the retaining arches and the valve prosthesis to expand, wherein each of the exactly three retaining arches includes an apex axially aligned along a longitudinal direction of the endoprostesis with a respective apex of one of the exactly three positioning arches; clamping a plurality of native leaflets of the native valve between the positioning arches and the retaining arches; and manipulating the handle to further move the first sleeve to uncover the plurality of retaining elements; wherein each of the exactly three connecting struts connects two of the positioning arches at a first axial location along the longitudinal direction and connects two of the retaining arches at a second axial location along the longitudinal direction, different from the first axial location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of implanting an endoprosthesis including exactly three positioning arches, exactly three retaining arches, a valve prosthesis directly attached to each of the retaining arches, and a plurality of retaining elements, the method comprising:
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positioning the endoprosthesis relative to a native valve; manipulating a catheter to uncover the positioning arches; positioning the positioning arches within pockets of the native valve; manipulating the catheter to uncover the retaining arches to allow the retaining arches and the valve prosthesis to expand, wherein each of the exactly three retaining arches includes a plurality of openings through which the valve prosthesis is attached, and an apex of each of the retaining arches is axially aligned along a longitudinal direction of the endoprostesis with a respective apex of one of the exactly three positioning arches; and clamping a plurality of native leaflets of the native valve between the positioning arches and the retaining arches; wherein, when implanted, the positioning arches are disposed radially outward of the plurality of native leaflets and the retaining arches are disposed radially inward of the plurality of native leaflets. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of implanting an endoprosthesis with a catheter, the endoprosthesis including exactly three positioning arches, exactly three retaining arches each including an apex, a valve prosthesis directly attached to each of the exactly three retaining arches, and a plurality of retaining elements, the method comprising:
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positioning the endoprosthesis relative to a native aortic valve; moving a first sleeve element in a first direction to uncover the positioning arches; positioning the positioning arches within pockets of the native aortic valve; moving a second sleeve element in a second direction to uncover the retaining arches; clamping a plurality of native leaflets of the native aortic valve between the positioning arches and the retaining arches; and moving the first sleeve element further in the first direction to uncover the plurality of retaining elements; wherein the apices of the retaining arches define a proximal-most end of the endoprosthesis; and wherein, when implanted, the positioning arches are disposed radially outward of the plurality of native leaflets and the retaining arches are disposed radially inward of the plurality of native leaflets. - View Dependent Claims (21, 22)
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Specification