1. A method of processing a tissue matrix, including: selecting a collagen containing tissue matrix and bringing the tissue matrix into contact with a proteolytic enzyme under conditions sufficient to obtain the required level of plasticity in the tissue matrix. The method of claim 1, wherein the tissue matrix is a cell-free tissue matrix. The method of claim 1, wherein the tissue matrix comprises a skin tissue matrix. The method of claim 1, wherein the tissue is selected from fascia, pericardial tissue, dura mater, umbilical cord tissue, placental tissue, heart valve tissue, ligamentous tissue, tendon tissue, arterial tissue, venous tissue, connective tissue of the nervous system, bladder tissue , ureteral tissue and intestinal tissue. 5. The method of claim 1, wherein the enzyme is bromelain. The method according to claim 1, wherein the enzyme is selected from bromelain, papain, ficin, actinidine, or combinations thereof. The method according to claim 1, where the tissue matrix is brought into contact with a proteolytic enzyme under conditions that do not lead to an undesirable change in at least one of the tensile strength, tensile strength, crosslinking strength, creep resistance, burst strength, thermal temperature transition or combinations thereof. 8. The method of claim 1, wherein the tissue matrix is contacted with a proteolytic enzyme under conditions that increase the porosity of the tissue matrix. The method according to claim 1, where the tissue matrix is brought into contact with a proteolytic enzyme under conditions that do not cause a statistically significant decrease in tensile strength, tensile strength, crosslinking strength, creep resistance1. Способ обработки тканевой матрицы, включающий:выбор содержащей коллаген тканевой матрицы иприведение тканевой матрицы в контакт с протеолитическим ферментом при условиях, достаточных для получения необходимого уровня пластичности в тканевой матрице.2. Способ по п.1, где тканевая матрица представляет собой
