Prosthetic valve for replacing mitral valve
First Claim
1. A method of reducing regurgitation of the native mitral valve of a heart, the native mitral valve having a native annulus, posterior and anterior native valve leaflets, wherein the native leaflets define a regurgitant orifice area therebetween that allows blood to flow from the left ventricle to the left atrium during ventricular systole, the method comprising:
- delivering a prosthetic apparatus in a compressed state through the patient'"'"'s vasculature to the heart;
expanding the prosthetic apparatus from the compressed state to an expanded state;
positioning a spacer body of the prosthetic apparatus between the native leaflets;
positioning a lower anchor of the prosthetic apparatus on an inferior side of the anterior native valve leaflet;
positioning a second lower anchor of the prosthetic apparatus on an inferior side of the posterior native valve leaflet;
positioning a first upper anchor of the prosthetic apparatus on a superior side of the anterior native valve leaflet; and
positioning a second upper anchor of the prosthetic apparatus on a superior side of the posterior native valve leaflet;
wherein the spacer body occupies space within the regurgitant orifice area to reduce regugitation through the native mitral valve during ventricular systole.
2 Assignments
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Accused Products
Abstract
A prosthetic apparatus for implantation in a native mitral valve includes a main body for placement within the native mitral annulus. The main body is compressible to a radially compressed state for delivery into the heart and is self-expandable from the compressed state to a radially expanded state for implantation. A valve structure is mounted within a lumen of the main body and preferably forms three leaflets made of pericardium. An atrial sealing member is disposed along an atrial portion of the main body and ventricular anchors are coupled to a ventricular portion of the main body. The atrial sealing member impedes the flow of blood between the main body and the native annulus. The ventricular anchors are positioned outside the main body for capturing native mitral valve leaflets between the main body and the ventricular anchors.
226 Citations
22 Claims
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1. A method of reducing regurgitation of the native mitral valve of a heart, the native mitral valve having a native annulus, posterior and anterior native valve leaflets, wherein the native leaflets define a regurgitant orifice area therebetween that allows blood to flow from the left ventricle to the left atrium during ventricular systole, the method comprising:
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delivering a prosthetic apparatus in a compressed state through the patient'"'"'s vasculature to the heart; expanding the prosthetic apparatus from the compressed state to an expanded state; positioning a spacer body of the prosthetic apparatus between the native leaflets; positioning a lower anchor of the prosthetic apparatus on an inferior side of the anterior native valve leaflet; positioning a second lower anchor of the prosthetic apparatus on an inferior side of the posterior native valve leaflet; positioning a first upper anchor of the prosthetic apparatus on a superior side of the anterior native valve leaflet; and positioning a second upper anchor of the prosthetic apparatus on a superior side of the posterior native valve leaflet; wherein the spacer body occupies space within the regurgitant orifice area to reduce regugitation through the native mitral valve during ventricular systole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of reducing regurgitation of the native mitral valve having anterior and posterior native valve leaflets defining a regurgitant orifice area therebetween that allows blood to flow from the left ventricle to the left atrium during ventricular systole, the method comprising:
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delivering a prosthetic spacer in a compressed state through the patient'"'"'s vasculature to the native mitral valve region; radially expanding the prosthetic spacer from the compressed state to an expanded state; positioning a blood-impermeable spacer body of the prosthetic spacer within the regurgitant orifice area between the anterior and posterior native valve leaflets, the spacer body reducing regurgitant blood flow during ventricular systole; positioning a first ventricular anchor of the prosthetic spacer behind the posterior native valve leaflet; and positioning a second ventricular anchor of the prosthetic spacer behind the anterior native valve leaflet, wherein the first and second ventricular anchors retain portions of the native valve leaflets against the spacer body. - View Dependent Claims (15, 16, 17, 18)
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19. A method of ireducing regurgitation of the native mitral valve having native valve leaflets defining a regurgitant orifice area therebetween, the method comprising:
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delivering the prosthetic spacer in an axially-elongate, radially-compressed state through the patient'"'"'s vasculature to the native mitral valve region, wherein the prosthetic spacer includes a spacer body and a plurality of anchors coupled to the spacer body; moving the prosthetic spacer from the axially-elongate, radially-compressed state to an axially-foreshortened, radially-expanded state; positioning the anchors of the prosthetic device in a left ventricle of the heart; and moving the prosthetic device atrially relative to the native mitral valve such that the anchors are disposed behind the native valve leaflets and the spacer body is disposed within the regurgitant orifice area between the native valve leaflets, wherein the spacer body is shaped to reduce regurgitant blood flow through the native mitral valve during ventricular systole. - View Dependent Claims (20, 21, 22)
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Specification