Low noise heart valve prosthesis and method for operation
First Claim
1. A heart valve prosthesis comprising:
- an annular support having a fluid passageway with an upstream side and a downstream side and at least a first axis of symmetry;
a pier projecting radially inwardly from said inner surface of said annular support and along said first axis of symmetry;
a first arm projecting inwardly from an inner surface of said annular support and a second arm projecting inwardly from said inner surface of said annular support so as to be in confronting spaced relation to said first arm thereby defining a second axis of symmetry, wherein said first axis of symmetry and said second axis of symmetry are arcuately off-set from one another; and
an occluder-disc pivotally mounted between said pier and said first and second arms in said fluid passageway of said annular support.
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Accused Products
Abstract
A heart valve prosthesis having an annular support and an occluder-disc pivotally mounted in a fluid passageway of the annular support, where the annular support includes at least a first axis of symmetry. A pier that projects radially inwardly from an inner surface of the annular support and along the first axis of symmetry. A first arm projects inwardly from the inner surface of the annular support and a second arm that projects inwardly from the inner surface of the annular support so as to be in confronting spaced relation to the first arm thereby defining a second axis of symmetry. The first axis of symmetry and the second axis of symmetry are arcuately off-set from one another. A method of operation of the heart valve that reduces wear in the occluder-disc and noise is also presented.
55 Citations
31 Claims
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1. A heart valve prosthesis comprising:
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an annular support having a fluid passageway with an upstream side and a downstream side and at least a first axis of symmetry;
a pier projecting radially inwardly from said inner surface of said annular support and along said first axis of symmetry;
a first arm projecting inwardly from an inner surface of said annular support and a second arm projecting inwardly from said inner surface of said annular support so as to be in confronting spaced relation to said first arm thereby defining a second axis of symmetry, wherein said first axis of symmetry and said second axis of symmetry are arcuately off-set from one another; and
an occluder-disc pivotally mounted between said pier and said first and second arms in said fluid passageway of said annular support. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A heart valve prosthesis comprising:
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a support ring having a central opening and at least a first axis of symmetry;
a pier projecting radially inwardly from an inner surface of said support ring and symmetrically arranged about said first axis of symmetry;
a first arm projecting inwardly from an inner surface of said support ring and a second arm projecting inwardly from said inner surface of said support ring so as to be in spaced relation to said first arm thereby defining a second axis of symmetry, wherein said first axis of symmetry and said second axis of symmetry are arcuately off-set from one another by between about 2° and
about 3°
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an occluder-disc pivotally mounted between said pier and said first and second arms in said central opening of said support ring. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. A method for operation for a heart valve prosthesis comprising;
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(A) rotating an occluder-disc open within a support ring about a first axis so as to allow blood to flow through a fluid passageway of said support ring; and
(B) rotating said occluder-disc closed about said first axis while also incrementally rotating said occluder disc about a second axis so as to shift the portions of said occluder-disc that impact said support ring upon closure of said heart valve.
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30. A method for operation for a heart valve prosthesis comprising;
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(A) rotating an occluder-disc open within a support ring about a first axis so as to allow blood to flow through a fluid passageway of said support ring; and
(B) rotating said occluder-disc closed about said first axis so that portions of said occluder-disc impact said support ring upon closure of said heart valve at different times.
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31. A method for operation for a heart valve prosthesis comprising;
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(A) rotating an occluder-disc open within a support ring about a first axis so as to allow blood to flow through a fluid passageway of said support ring; and
(B) rotating said occluder-disc closed about said first axis while also incrementally rotating said occluder disc about a second axis so as to shift the portions of said occluder-disc that impact said support ring upon closure of said heart valve and so that said portions of said occluder-disc that impact said support ring upon closure of said heart valve do so at different times.
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Specification