Apparatus and method for replacing a cardiac valve
First Claim
1. An apparatus for replacing a cardiac valve having at least two native valve leaflets, said apparatus comprising:
- an expandable support member having oppositely disposed first and second ends and a main body portion extending between said ends, said main body portion of said expandable support member having an annular shape for expanding into position in the annulus of the cardiac valve;
said first end of said expandable support member comprising a plurality of upper wing members that extend from said main body portion and are spaced circumferentially apart about said main body portion, each of said upper wing members having a first magnetic component;
said second end of said expandable support member comprising a plurality of lower wing members that extend from said main body portion, each of said lower wing members having a second magnetic component;
said second end of said expandable support member further including at least two strut members that are spaced apart from each other;
said first and second magnetic components being magnetically attracted to one another so that, when said apparatus is placed in the annulus of the cardiac valve, said upper and lower wing members are pulled toward one another to secure said expandable support member in the annulus; and
a prosthetic valve secured within said main body portion of said expandable support member, said prosthetic valve having at least two valve leaflets that are coaptable to permit unidirectional flow of blood, each of said at least two valve leaflets being joined together at at least two commissural sections that are spaced apart from each other, each of said at least two commissural sections being attached to a respective one of said strut members to prevent prolapse of said valve leaflets.
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Accused Products
Abstract
An apparatus for replacing a cardiac valve having at least two native valve leaflets includes an expandable support member with oppositely disposed first and second ends and a main body portion extending between the ends. The first and second ends respectively include a plurality of upper and lower wing members respectively having first and second magnetic components. The wing members extend from the main body portion and are spaced circumferentially thereabout. Secured within the main body portion is a prosthetic valve having at least two valve leaflets. The second end further includes at least two strut members spaced apart from each other and attached to at least one commissural section of the prosthetic valve. The magnetic components are magnetically attracted to one another so that, when the apparatus is placed in the valve annulus, the wing members are pulled toward one another to secure the prosthetic valve in the annulus.
653 Citations
45 Claims
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1. An apparatus for replacing a cardiac valve having at least two native valve leaflets, said apparatus comprising:
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an expandable support member having oppositely disposed first and second ends and a main body portion extending between said ends, said main body portion of said expandable support member having an annular shape for expanding into position in the annulus of the cardiac valve;
said first end of said expandable support member comprising a plurality of upper wing members that extend from said main body portion and are spaced circumferentially apart about said main body portion, each of said upper wing members having a first magnetic component;
said second end of said expandable support member comprising a plurality of lower wing members that extend from said main body portion, each of said lower wing members having a second magnetic component;
said second end of said expandable support member further including at least two strut members that are spaced apart from each other;
said first and second magnetic components being magnetically attracted to one another so that, when said apparatus is placed in the annulus of the cardiac valve, said upper and lower wing members are pulled toward one another to secure said expandable support member in the annulus; and
a prosthetic valve secured within said main body portion of said expandable support member, said prosthetic valve having at least two valve leaflets that are coaptable to permit unidirectional flow of blood, each of said at least two valve leaflets being joined together at at least two commissural sections that are spaced apart from each other, each of said at least two commissural sections being attached to a respective one of said strut members to prevent prolapse of said valve leaflets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for replacing a cardiac valve having at least two native valve leaflets, said method comprising the steps of:
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providing a prosthetic valve that includes an expandable support member having a main body portion, a plurality of upper wing members that extend from a first end of the main body portion and which include a first magnetic component attached to each upper wing member, and a corresponding plurality of lower wing members that extend from an opposite second end of the main body portion and which include a second magnetic component attached to each lower wing member, the second end of the expandable support member further including at least two strut members, the prosthetic valve having at least two valve leaflets that are joined together at at least two commissural sections, each of the at least two commissural sections being attached to a respective one of the strut members to prevent prolapse of the valve leaflets, the prosthetic valve having at least two valve leaflets that are coaptable to permit unidirectional flow of blood;
placing the main body portion of the prosthetic valve within the annulus of the cardiac valve to be replaced;
expanding the main body portion into engagement with the annulus of the cardiac valve to secure the prosthetic valve in the annulus; and
deploying the upper and lower wing members from a radially collapsed condition into a radially extended condition whereby the first and second magnetic components are magnetically attracted and pull the upper and lower wing members toward each other, which secures the prosthetic valve in the annulus of the native cardiac valve. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An apparatus for replacing a cardiac valve having at least two native valve leaflets, said apparatus comprising:
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an expandable support member having oppositely disposed first and second ends and a main body portion extending between said ends, said main body portion of said expandable support member having an annular shape for expanding into position in the annulus of the cardiac valve, said first end of said expandable support member comprising a plurality of upper wing members that extend from said main body portion, said second end of said expandable support member comprising a plurality of lower wing members that extend from said main body portion, said second end of said expandable support member further including at least two strut members that are spaced apart from each other;
said upper and lower wing members including means for magnetically attracting upper and lower wing members toward each other to secure said apparatus in the annulus of the native cardiac valve; and
a prosthetic valve secured within said main body portion of said expandable support member, said prosthetic valve having at least two valve leaflets that are coaptable to permit unidirectional flow of blood, each of said at least two valve leaflets being joined together at at least two commissural sections that are spaced apart from each other, each of said at least two commissural sections being attached to a respective one of said strut members to prevent prolapse of said valve leaflets. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. An apparatus for replacing a cardiac valve having at least two native valve leaflets, said apparatus comprising:
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an expandable support member having oppositely disposed first and second ends and a main body portion extending between said ends, said main body portion having an annular shape for expanding into position in the annulus of the cardiac valve;
said first and second ends of said expandable support member respectively comprising a plurality of upper and lower wing members that extend from said main body portion and are spaced circumferentially apart about said main body portion, each of said upper and lower wing members having at least one attachment mechanism;
said second end of said expandable support member further including at least two strut members that are spaced apart from each other;
said main body portion comprising a first end portion and a second end portion, said first and second end portions respectively having first and second magnetic ring components;
said first and second magnetic ring components being magnetically attracted to one another so that, when said apparatus is placed in the annulus of the cardiac valve, said first and second end portions of said main body portion are pulled toward one another to secure said expandable support member in the annulus; and
a prosthetic valve secured within said main body portion of said expandable support member, said prosthetic valve having at least two valve leaflets that are coaptable to permit unidirectional flow of blood, each of said at least two valve leaflets being joined together at at least two commissural sections that are spaced apart from each other, each of said at least two commissural sections being attached to a respective one of said strut members to prevent prolapse of said valve leaflets. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification