MITRAL VALVE REPLACEMENT WITH ATRIAL ANCHORING
First Claim
1. A prosthetic mitral valve assembly for implantation in a heart having a native mitral valve positioned between a left atrium and left ventricle, comprising:
- a radially-expandable stent sized so that an anchoring portion of the stent is implantable in the left atrium above an annulus of the native mitral valve with a pressure or friction fit against the atrium walls; and
a valve portion coupled to the stent.
1 Assignment
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Accused Products
Abstract
A prosthetic mitral valve assembly and method of inserting the same is disclosed. In certain disclosed embodiments, the prosthetic mitral valve assembly includes a stent and valve combination. The stent is designed so that the anchoring portion is positioned above the annulus of the mitral valve and in the left atrium. The stent is radially expandable so that it can expand into position against the walls of the left atrium and accommodate a wide range of anatomies. Contact between the stent and the native tissue in the left atrium reduces paravalvular leakage and prevents migration of the stent once in place.
937 Citations
28 Claims
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1. A prosthetic mitral valve assembly for implantation in a heart having a native mitral valve positioned between a left atrium and left ventricle, comprising:
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a radially-expandable stent sized so that an anchoring portion of the stent is implantable in the left atrium above an annulus of the native mitral valve with a pressure or friction fit against the atrium walls; and a valve portion coupled to the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A prosthetic mitral valve assembly, comprising:
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a radially-expandable stent having an upper portion sized so that an anchoring portion of the stent is implantable in a left atrium above an annulus of a native mitral valve with a pressure or friction fit and a lower portion for extending into the native mitral valve, the upper portion of the stent having a circumference that is greater than a circumference of the lower portion; and a valve portion coupled within the lower portion to the stent. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method of implanting a prosthetic mitral heart valve, comprising:
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inserting a prosthetic mitral valve assembly in a collapsed state into a heart using a delivery catheter; expanding the prosthetic mitral valve assembly; and positioning the prosthetic mitral valve assembly so that an anchoring portion of the stent is implantable in the left atrium above an annulus of the native mitral valve with a pressure fit. - View Dependent Claims (26, 27, 28)
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Specification