Medical device using bioabsorbable material
Bioabsorbable medical devices such as vascular closures, mitral chorea replacements, and mitral leaflet extensions are provided.
1. An electrospun mitral leaflet extension prosthesis comprising: a bioabsorbable fibrous network configured to be attached directly to a free edge of a native mitral leaflet to act as an extension of the free edge of the native mitral leaflet, wherein the bioabsorbable fibrous network has pores with a pore size in between 1 to 300 micrometers allowing cell infiltration and cell ingrowth throughout the thickness of the bioabsorbable fibrous network, wherein the bioabsorbable fibrous network has electrospun polymers or a matrix with one or more supramolecular compounds with a fiber diameter of 1 micrometer to 50 micrometer, wherein upon implantation the bioabsorbable fibrous network is capable of progressively being absorbed by a body and replaced by new tissue growth to replace the bioabsorbable fibrous network.
2. The mitral leaflet extension prosthesis as set forth in claim 1 , wherein the bioabsorbable fibrous network is an electropun material having a gradient in properties of the electrospun material.
3. The mitral leaflet extension prosthesis as set forth in claim 1 , wherein the mitral leaflet extension prosthesis further comprises an attachment zone for attachment to the native mitral leaflet, and an extension zone for providing additional coaptation material extending beyond the periphery of the attachment zone and/or the periphery of the native leaflet.
4. The mitral leaflet extension prosthesis as set forth in claim 3 , wherein the attachment zone carries at least one anchor for attachment of the prosthesis to native leaflet material.
5. The mitral leaflet extension prosthesis as set forth in claim 3 , wherein at least one of the attachment zone and the extension zone has a generally arcuate shape.
6. The mitral leaflet extension prosthesis as set forth in claim 3 , wherein the mitral leaflet extension prosthesis is configured for an anterior mitral leaflet, and the extension zone is disposed on a convex edge of the attachment zone.
7. The mitral leaflet extension prosthesis as set forth in claim 3 , wherein the mitral leaflet extension prosthesis is configured for a poserior mitral leaflet, and the extension zone is disposed on a concave edge of the attachcment zone.
8. The mitral leaflet extension prosthesis as set forth in claim 1 , configured for attachment to the native mitral leaflet without an extra-leaflet anchor.
9. The mitral leaflet extension prosthesis as set forth in claim 1 , wherein the bioabsorbable fibrous network has a coefficient of friction below 0.8.