Devices, systems, and methods for retaining a native heart valve leaflet
First Claim
1. An implant that retains a native heart valve leaflet within a heart chamber to resist retrograde flow comprising:
- a scaffold sized and configured to rest adjacent all or a portion of a native 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 valve leaflets,the scaffold further including spaced-apart struts sized and configured to contact tissue near or within the heart valve annulus to brace the retaining structure to resist leaflet eversion and/or prolapsed, andan auxiliary structure to orient and stabilize the scaffold with the heart chamber, the auxiliary structure comprising a framework that rises above the scaffold including two substantially parallel arched wires that connect to form a semicircular hoop above the scaffold to position the scaffold within the heart chamber, the framework being compliant to contract with the heart chamber.
7 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.
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Citations
13 Claims
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1. An implant that retains a native heart valve leaflet within a heart chamber to resist retrograde flow comprising:
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a scaffold sized and configured to rest adjacent all or a portion of a native 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 valve leaflets, the scaffold further including spaced-apart struts sized and configured to contact tissue near or within the heart valve annulus to brace the retaining structure to resist leaflet eversion and/or prolapsed, and an auxiliary structure to orient and stabilize the scaffold with the heart chamber, the auxiliary structure comprising a framework that rises above the scaffold including two substantially parallel arched wires that connect to form a semicircular hoop above the scaffold to position the scaffold within the heart chamber, the framework being compliant to contract with the heart chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification