Radially collapsible frame for a prosthetic valve and method for manufacturing such a frame
First Claim
1. A method for treating a native heart valve, the method comprising:
- positioning a stent within a native heart valve, the stent including a frame and prosthetic valve leaflets, wherein the frame includesat least two commissure attachment regions located at a proximal outflow end of the frame, wherein each commissure attachment region is attached to commissure edges of the prosthetic valve leaflets,a plurality of circumferentially arranged retaining arches attached to cusp edges of the prosthetic valve leaflets, each retaining arch including a first arm joined to a second arm at an apex pointing towards a distal inflow end of the frame,a cell structure comprising a first plurality of cells disposed between the first arm and the second arm of each retaining arch, and a second plurality of cells disposed between adjacent arms of two neighboring retaining arches, andat least one arch radially outward of at least a portion of the cell structure;
wherein the stent is positioned within the native heart valve so that the first plurality of cells of the cell structure inhibit one or more leaflets of the native heart valve from contacting the prosthetic valve leaflets.
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Accused Products
Abstract
The present invention relates to a radially collapsible frame (1) for a prosthetic valve, the frame (1) comprising an outflow end region (3) at a proximal end of the frame (1) and an inflow end region (2) at a distal end of the frame (1), opposite to the outflow end region (3). The frame (1) further includes at least two radially spaced commissure attachment regions (10, 10′, 10″) and a cell structure (30), composed of a plurality of lattice cells being arranged radially around a flow axis of the frame (1) and connecting the at least two commissure attachment regions (10, 10′, 10″). Finally, at least one anchoring/positioning arch (20, 20′, 20″) is provided, wherein said at least one anchoring/positioning arch (20, 20′, 20″) radially overlaps the cell structure (30) at least partially. In order to form the inventive frame from as a single piece, the invention further relates to a method comprising bending the at least one anchoring/positioning arch (20, 20′, 20″) towards the cell structure (30) of the frame (1).
341 Citations
20 Claims
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1. A method for treating a native heart valve, the method comprising:
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positioning a stent within a native heart valve, the stent including a frame and prosthetic valve leaflets, wherein the frame includes at least two commissure attachment regions located at a proximal outflow end of the frame, wherein each commissure attachment region is attached to commissure edges of the prosthetic valve leaflets, a plurality of circumferentially arranged retaining arches attached to cusp edges of the prosthetic valve leaflets, each retaining arch including a first arm joined to a second arm at an apex pointing towards a distal inflow end of the frame, a cell structure comprising a first plurality of cells disposed between the first arm and the second arm of each retaining arch, and a second plurality of cells disposed between adjacent arms of two neighboring retaining arches, and at least one arch radially outward of at least a portion of the cell structure; wherein the stent is positioned within the native heart valve so that the first plurality of cells of the cell structure inhibit one or more leaflets of the native heart valve from contacting the prosthetic valve leaflets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for treating a native heart valve, the method comprising:
positioning a frame within a native heart valve, the frame including at least two commissure attachment regions located at a distal end of the frame, wherein each commissure attachment region is attached to commissure edges of prosthetic valve leaflets, a plurality of circumferentially arranged retaining arches, each retaining arch including a first arm joined to a second arm at a distal end of the retaining arch, a first plurality of struts defining a first plurality of cells disposed between the first arm and the second arm of each retaining arch, a second plurality of struts defining a second plurality of cells disposed between adjacent arms of two neighboring retaining arches, wherein the first plurality of struts prevents at least a portion of a leaflet of the native heart valve from contacting at least one of the prosthetic valve leaflets, and at least one arch radially outward of at least a portion of the first plurality of cells. - View Dependent Claims (10, 11, 12, 13)
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14. A method for treating a native heart valve, the method comprising:
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positioning a stent within a native heart valve, the stent including a prosthesis having prosthetic valve leaflets; a frame, the frame including an outflow end region at a proximal end of the frame and an inflow end region at a distal end of the frame opposite the outflow end region, at least two commissure attachment regions located at the outflow end, wherein each commissure attachment region is attached to the prosthesis, a plurality of circumferentially arranged retaining arches, each retaining arch including a first arm joined to a second arm at a distal end of the retaining arch, a plurality of lattice cells proximal to the distal end of each retaining arch, the plurality of lattice cells comprising a plurality of first cells disposed between the first arm and the second arm of each retaining arch, and a plurality of second cells disposed between adjacent arms of two neighboring retaining arches, wherein the first plurality of cells guard the prosthetic valve leaflets from leaflets of the native heart valve, and at least one arch radially outward of at least a portion of the plurality of lattice cells; wherein positioning the stent within the native heart valve includes positioning the at least one arch in a pocket of a the native heart valve. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification