METHOD FOR PREPARING TISSUE FOR XENOPROSTHETICS Russian patent published in 2003 - IPC

FIELD: medicine, valvular cardioprosthetics. SUBSTANCE: biotissue for xenoprosthetics should be kept in 1-10-% hypertonic solution of sodium chloride before fermentative treatment, treated with enzyme in borate buffer solution at 32-37 C, washed in, firstly, 0.6-6-% acetic acid solution, then in sodium hydrocarbonate solution and sodium chloride solutions, kept in multi-substituted solution of glutaric aldehyde in buffer solution at increasing concentration and sterilized. The invention favors to shorten expenses of expensive reagents and decrease possibility for biotissue mineralization. EFFECT: higher efficiency. 1 cl, 1 tbl