Patent ID: 9351820
Filing Date: 2016-05-31
CPC Classification: A61B,A61F,A61L

Claim Text:
1. A device for repair surgery of ruptured tendons, configured as a tubular sheath (T) made of a biocompatible and biodegradable polymer, characterized in that said tubular sheath comprises an elastic fiber mesh formed by electrospinning of said polymer, said tubular sheath having an inner wall surface and an outer wall surface substantially parallel thereto, wherein one of said wall surfaces is comparatively rough (W R ) and the other one of said wall surfaces is comparatively smooth (W s ), said tubular sheath having a Young elasticity modulus circumferentially of 2 to 4 MPa and an elongation at break of 500 to 1000%, wherein said polymer is a biodegradable polyester urethane block copolymer with poly-hydroxy-butyrate as a hard segment and c-caprolactone as a soft segment, characterized in that said soft segment has an average molecular weight of 950 g/mol to 1,200 g/mol and wherein the relative content of said soft segment is 70 to 75 parts by weight whereas the relative content of said hard segment is 25 to 30 parts by weight.