METHOD OF FIBRE PRODUCTION Russian patent published in 2008 - IPC A61L15/28 A61L17/10 

FIELD: medicine.

SUBSTANCE: invention can be used for production human and mammal body absorbable surgical suture materials and absorbable wound textiles. Milled chitin-containing natural raw materials (for example, crab shells) are processed many times at 4-10°C, preferable at 4-5°C using aqueous solutions of hydrochloric acid and alkali, then rinsed with water, aqueous solution of weak acid, water, acetone. Produced dry product is dissolved in dimethylacetamide containing lithium chloride 4.56-10.0 wt % to produce chitin solution 2.4-4.0 wt %. Produced solution is extruded at room temperature to alcoholic setting bath, passed through aqueous stretch and rinsing baths; thus alcoholic setting bath is water-soluble aliphatic alcohols C₁-C₃, preferably C₂ and C₃.

EFFECT: sufficient elongation and durability especially for surgical suture material.

1 tbl, 1 dwg, 13 ex