SURGICAL THREAD AND METHOD OF MANUFACTURING SAME Russian patent published in 1995 - IPC

FIELD: medicine. SUBSTANCE: this surgical thread made of dura matter spinalis is composed of interpenetrating intact collagen and elastic structures. Process for manufacturing this surgical thread prescribes isolating animal dura matter spinalis, making strips, salting these during 24 h, cutting out laminas 0.02 to 0.8 mm wide, washing out these during 1 h, treating them with 0.1-percent aqueous solution of sodium carbonate during 3 to 6 h, twisting laminas to twisting degree of 150 to 250, step-by-step drying them during 36 to 50 h, subjecting threads to neutralization of electrostatic charges by using method of convection and multiple air exchange during 1 to 1.5 h, and finally grinding and polishing threads. EFFECT: higher quality of threads made of dura matter spinalis, solidity, homogeneity and physical-mechanical properties.