Apparatus and methods 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 support member having an annular shape for expanding into position in the annulus of the cardiac valve;
said first end of said support member comprising a plurality of upper wing members that extend from said main body portion, each of said upper wing members being movable from a radially collapsed condition into a radially extended condition for engaging a first section of cardiac tissue surrounding one-side of the cardiac valve;
said second end of said support member comprising a plurality of lower wing members that extend from said main body portion, each of said lower wing members being movable from a radially collapsed condition into a radially extended condition for engaging a portion of the native valve leaflets to pin the leaflets back against the annulus of the native cardiac valve;
said second end of said support member further including at least two strut members that are spaced apart from each other; and
a prosthetic valve secured within said main body portion of said 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.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus and method for replacing a cardiac valve includes an expandable support member having oppositely disposed first and second ends, a main body portion extending between the ends, and a prosthetic valve within the main body portion. The main body portion has an annular shape for expanding into position in the annulus of the valve. The first and second ends include a plurality of upper and lower wing members movable from a collapsed condition into an extended condition for respectively engaging a first section of cardiac tissue surrounding the valve and for engaging a portion of the native valve leaflets to pin the leaflets back against the annulus. The second end further includes at least two strut members spaced apart from each other. A respective one of the strut members is attached to at least one commissural section of the prosthetic valve to prevent prolapse of the valve leaflets.
828 Citations
30 Claims
-
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 support member having an annular shape for expanding into position in the annulus of the cardiac valve;
said first end of said support member comprising a plurality of upper wing members that extend from said main body portion, each of said upper wing members being movable from a radially collapsed condition into a radially extended condition for engaging a first section of cardiac tissue surrounding one-side of the cardiac valve;
said second end of said support member comprising a plurality of lower wing members that extend from said main body portion, each of said lower wing members being movable from a radially collapsed condition into a radially extended condition for engaging a portion of the native valve leaflets to pin the leaflets back against the annulus of the native cardiac valve;
said second end of said support member further including at least two strut members that are spaced apart from each other; and
a prosthetic valve secured within said main body portion of said 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, 13, 14, 15, 16)
-
-
17. A method for replacing a cardiac valve having at least two native valve leaflets, said method comprising the steps of:
-
providing a prosthetic valve that includes an expandable support member having oppositely disposed first and second ends and a main body portion extending between the ends, a plurality of upper wing members that extend from a one end of the main body portion, and a plurality of lower wing members that extend from an opposite end of the main body portion, the second end of the 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;
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;
deploying the upper wing members from a radially collapsed condition into a radially extended condition into engagement with a first section of cardiac tissue surrounding one side of the cardiac valve; and
deploying the lower wing members from a radially collapsed condition into a radially extended condition into engagement with a portion of the native valve leaflets to pin the leaflets back against the annulus of the native cardiac valve. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
-
Specification