| CPC A61F 2/062 (2013.01) [A61F 2/06 (2013.01); A61F 2/07 (2013.01); A61F 2210/0004 (2013.01); A61F 2230/0069 (2013.01)] | 16 Claims |
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1. A composite implant forming a tubular vascular graft defining a lumenal axis, the composite implant comprising:
a resilient tubular support exhibiting radial compliance with respect to the lumenal axis, and being disposed circumaxially between an inner layer and an outer layer, the inner layer forming a lumenal wall of the implant and comprising a first non-woven arrangement of biodegradable polymer fibers, the outer layer forming an exterior wall of the implant and comprising a second non-woven arrangement of biodegradable polymer fibers, the first non-woven arrangement of biodegradable polymer fibers of the inner layer forming a plurality of axially spaced apart circumferential recesses defining respective hinge regions at which a first radial layer thickness of the inner layer is less than a second radial thickness of the inner layer at non-hinge regions thereof, wherein the axially spaced apart circumferential recesses extend radially outwardly from the lumenal axis toward respective vertices, and wherein each such circumferential recess forms an internal angle of between 10-170° opening from the respective vertex toward the lumenal axis.
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