Prosthetic valve for replacing a mitral valve
First Claim
1. A prosthetic device for implanting at a native mitral or tricuspid valve region of the heart, the native valve region having a native valve annulus and native leaflets, the prosthetic device comprising:
- a main body configured for placement within the native valve annulus, the main body having a lumen extending between an atrial end and a ventricular end and a longitudinal axis extending from the atrial end to the ventricular end;
an atrial cap that extends radially outwardly from the atrial end; and
a plurality of ventricular anchors spaced angularly around a circumference of the main body, each ventricular anchor having a proximal end portion connected to the main body proximate the ventricular end at only one location on the main body, an intermediate portion extending away from the atrial end and then back toward the atrial end so as to define a first bend, and a distal end portion extending from the intermediate portion, the distal end portion comprising a first section, and a second section, the first section extending from the intermediate portion alongside the main body between the atrial end and the ventricular end in a direction toward the atrial end and radially away from the main body at a first angle relative to the longitudinal axis starting at the intermediate portion and moving toward the second section of the distal end portion, the second section extending from the first section in a direction radially away from the main body at a second angle relative to the longitudinal axis starting at the first section and moving toward a distal end of the second section, the second angle being greater than the first angle, the second section comprising a tissue-engaging surface facing the atrial end that can contact the native annulus and/or the native leaflets, the second section being wider in a circumferential direction along the tissue-engaging surface than the proximal end portion and the intermediate end portion.
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Accused Products
Abstract
Embodiments of a prosthetic heart valve comprise an annular main body, an atrial cap extending radially outwardly from the atrial end of the main body, and a plurality of ventricular anchors extending outwardly from the ventricular end of the main body. Each ventricular anchor can have a proximal end portion connected to the ventricular end, an intermediate portion extending away from the atrial end and then back toward the atrial so as to define a first bend, and a free distal end portion that extends from the intermediate portion. The distal end portion can comprise a first section, a second section, and a second bend between the first and second sections, the first section extending from the intermediate portion in a direction toward the atrial end and radially away from the main body.
450 Citations
24 Claims
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1. A prosthetic device for implanting at a native mitral or tricuspid valve region of the heart, the native valve region having a native valve annulus and native leaflets, the prosthetic device comprising:
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a main body configured for placement within the native valve annulus, the main body having a lumen extending between an atrial end and a ventricular end and a longitudinal axis extending from the atrial end to the ventricular end; an atrial cap that extends radially outwardly from the atrial end; and a plurality of ventricular anchors spaced angularly around a circumference of the main body, each ventricular anchor having a proximal end portion connected to the main body proximate the ventricular end at only one location on the main body, an intermediate portion extending away from the atrial end and then back toward the atrial end so as to define a first bend, and a distal end portion extending from the intermediate portion, the distal end portion comprising a first section, and a second section, the first section extending from the intermediate portion alongside the main body between the atrial end and the ventricular end in a direction toward the atrial end and radially away from the main body at a first angle relative to the longitudinal axis starting at the intermediate portion and moving toward the second section of the distal end portion, the second section extending from the first section in a direction radially away from the main body at a second angle relative to the longitudinal axis starting at the first section and moving toward a distal end of the second section, the second angle being greater than the first angle, the second section comprising a tissue-engaging surface facing the atrial end that can contact the native annulus and/or the native leaflets, the second section being wider in a circumferential direction along the tissue-engaging surface than the proximal end portion and the intermediate end portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of implanting a prosthetic heart valve at a native atrioventricular valve region having a native valve annulus and a plurality of native leaflets, comprising:
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delivering a prosthetic heart valve to a native valve region, the prosthetic heart valve contained within an interior of a sheath of a delivery apparatus, the prosthetic heart valve comprising an annular main body, an atrial portion extending from the main body, and a plurality of ventricular anchors extending from the main body, the ventricular anchors being connected to the main body independently of each other without frame segments interconnecting adjacent anchors; and deploying the prosthetic heart valve from the sheath such that main body expands within the native annulus, the atrial portion is deployed in an atrium adjacent the native annulus, and the plurality of ventricular anchors extend behind the native leaflets, each ventricular anchor having a proximal end portion extending in a direction away from the atrial end, an intermediate portion extending back toward the atrial end, and a distal end portion extending toward the atrial end and radially away from the main body wherein the main body is a double-body structure comprising an annular inner frame portion and an annular outer frame portion overlapping the inner frame portion, the ventricular anchors extending from one of the inner and outer frame portions and the atrial portion extending from the other of the inner and outer frame portions, the outer frame portion being more flexible than the inner frame portion. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification