Devices, systems, and methods for retaining a native heart valve leaflet
First Claim
1. A method for retaining a native mitral heart leaflet to resist retrograde flow comprisingproviding an implant that retains a native mitral heart valve leaflet to resist retrograde flow comprising a scaffold sized and configured to rest adjacent all or a portion of a native mitral heart valve annulus, at least a portion of the scaffold defining a pseudo-annulus and including a retaining structure near or within the pseudo-annulus that is sized and shaped to overlay at least a portion of one or more native mitral valve leaflets, the scaffold further including spaced-apart struts sized and configured to contact tissue near or within the mitral heart valve annulus to brace the retaining structure to resist leaflet eversion and/or prolapse,establishing an intravascular access path that extends from a right atrium through a septum and into a left atrium,introducing the implant through the intravascular path into the left atrium, andresisting leaflet eversion and/or prolapse by locating the scaffold adjacent all or a portion of the native mitral heart valve annulus to define a pseudo-annulus with the retaining structure overlaying at least a portion of one or more native mitral valve leaflets and with the spaced-apart struts contacting tissue near or within the mitral heart valve annulus to brace the retaining structure.
9 Assignments
0 Petitions
Accused Products
Abstract
Devices, systems and methods retain a native heart valve leaflet to prevent retrograde flow. The devices, systems, and methods employ an implant that, in use, rests adjacent a valve annulus and includes a retaining structure that is sized and shaped to overlay at least a portion of one or more native valve leaflets. The retaining structure retains the leaflet or leaflets it overlays, to resist leaflet eversion and/or prolapse. In this way, the implant prevents or reduces regurgitation. The implant does not interfere significantly with the opening of and blood flow through the leaflets during periods of antegrade flow.
299 Citations
15 Claims
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1. A method for retaining a native mitral heart leaflet to resist retrograde flow comprising
providing an implant that retains a native mitral heart valve leaflet to resist retrograde flow comprising a scaffold sized and configured to rest adjacent all or a portion of a native mitral heart valve annulus, at least a portion of the scaffold defining a pseudo-annulus and including a retaining structure near or within the pseudo-annulus that is sized and shaped to overlay at least a portion of one or more native mitral valve leaflets, the scaffold further including spaced-apart struts sized and configured to contact tissue near or within the mitral heart valve annulus to brace the retaining structure to resist leaflet eversion and/or prolapse, establishing an intravascular access path that extends from a right atrium through a septum and into a left atrium, introducing the implant through the intravascular path into the left atrium, and resisting leaflet eversion and/or prolapse by locating the scaffold adjacent all or a portion of the native mitral heart valve annulus to define a pseudo-annulus with the retaining structure overlaying at least a portion of one or more native mitral valve leaflets and with the spaced-apart struts contacting tissue near or within the mitral heart valve annulus to brace the retaining structure.
Specification