SURGICAL FIBRE, METHOD OF ITS PRODUCTION AND ARTICLES MADE FROM IT

摘要

FIELD: technological processes. ^ SUBSTANCE: invention is related to medicine. Biodegradable and biocompatible single-core fibres and netted implants from them are described, preserving high strength properties for a long period of time. Surgical fibre is described on the basis of a biodegradable polymer with absolute strength of at least 306 MPa, consisting of a copolymer 3-hydroxybutyrate and 3-hydroxyvaleriate and containing 3-hydroxyvaleriate in amount from 5 to 95 mol %. Copolymer has molecular weight of at least 600 kDa. Copolymer has an extent of crystallinity of not more than 60%. The method is described to produce medical sutural fibre, including melting of copolymer 3-hydroxybutyrate and 3-hydroxyvaleriate, extrusion and alignment of single-core fibre. ^ EFFECT: production of surgical fibre of different diameter with high strength parameters, which preserves integrity and strength when implanted into a body for a long period of time and suitable for use as surgical sutural threads and surgical netted implants. ^ 8 cl, 8 dwg, 6 ex