Axially-shortening prosthetic valve
First Claim
1. A method for use at an atrioventricular valve disposed between an atrium and a ventricle of a heart of a subject, the method comprising:
- transluminally advancing a catheter to the heart;
via the catheter, advancing to the heart a prosthetic valve including;
an upstream annular skirt,a downstream skirt having a first portion and a second portion, the first portion defining a lumen therethrough, and the second portion defining a plurality of anchoring arms that are coupled to the second portion, anda plurality of prosthetic leaflets attached to the first portion and disposed within the lumen;
expanding the upstream annular skirt in the atrium and expanding the anchoring arms in the ventricle such that the anchoring arms extend radially outward and toward the upstream skirt; and
subsequently, squeezing tissue of the atrioventricular valve between the upstream annular skirt and the anchoring arms by causing the second portion to slide longitudinally along the outside of the first portion and with respect to the prosthetic leaflets, such that the anchoring arms move longitudinally toward the upstream skirt.
3 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods are described including a prosthetic atrioventricular valve (10) for coupling to a native atrioventricular valve (12). The prosthetic valve includes a support frame (20) and a covering (22), which at least partially covers the support frame. The support frame and the covering are shaped so as to define a downstream skirt (24). A plurality of prosthetic leaflets (40) are coupled to at least one element selected from the group consisting of: the support frame and the covering. An elongated anchoring member (152) is positioned around the downstream skirt in a subvalvular space (150), such that the anchoring member presses native leaflets (30) of the native valve against the downstream skirt, thereby anchoring the prosthetic valve to the native valve. Other applications are also described.
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Citations
11 Claims
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1. A method for use at an atrioventricular valve disposed between an atrium and a ventricle of a heart of a subject, the method comprising:
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transluminally advancing a catheter to the heart; via the catheter, advancing to the heart a prosthetic valve including; an upstream annular skirt, a downstream skirt having a first portion and a second portion, the first portion defining a lumen therethrough, and the second portion defining a plurality of anchoring arms that are coupled to the second portion, and a plurality of prosthetic leaflets attached to the first portion and disposed within the lumen; expanding the upstream annular skirt in the atrium and expanding the anchoring arms in the ventricle such that the anchoring arms extend radially outward and toward the upstream skirt; and subsequently, squeezing tissue of the atrioventricular valve between the upstream annular skirt and the anchoring arms by causing the second portion to slide longitudinally along the outside of the first portion and with respect to the prosthetic leaflets, such that the anchoring arms move longitudinally toward the upstream skirt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification