Fibers and yarns useful for constructing graft materials

D - Textiles – Paper – 02 – G

Patent

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Details

D02G 3/04 (2006.01) A61F 2/90 (2006.01) A61L 17/04 (2006.01) C08J 5/04 (2006.01) D01D 5/34 (2006.01) D01F 8/04 (2006.01)

Patent

CA 2578510

The present invention discloses a composite yarn comprising at least one wear-resistant polymeric fiber and at least one flexible polymeric fiber. The present invention also discloses a co-extruded filament comprising a polymeric inner core and a polymeric outer sheath. The polymeric inner core comprises a flexible polymeric material and the polymeric outer sheath comprises a wear-resistant polymeric material. The composite yarn and the co-extruded filament synergistically combine durability and flexibility, and thereby are particularly useful for the construction of graft materials. The present invention further discloses a reinforced fiber graft comprising wear-resistant beads and weaves of flexible polymeric fibers. In another aspect, the present invention discloses a process for assembling a graft device without suture knots by using the inventive co-extruded filament.

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