COMBINED VASCULAR VASCULAR homograft and biological homograft Bolsunovsky

摘要

The utility model relates to medicine, namely, to prostheses used for the replacement of fragments of blood vessels, particularly in operations on the heart. It is proposed to design the combined vascular homograft Bolsunovsky (KSGB) containing fragments, made of a material of biological origin and a synthetic resin material, wherein the portion of the biological origin of the material is made of woven detsellyulyarizirovannogo matrix (FCN) and a fragment of a polymeric material is made of polytetrafluoroethylene. Thus in KSGB fragment of polytetrafluoroethylene is in the form of a tube, inside which is coaxially vascular homograft «HIGH HUMAN TECHNOLOGY» of DTM (GB). The highest GB protection against external influences is achieved when the length of the tube of PTFE and SG are identical. The inner diameter of the tube wherein the polytetrafluoroethylene is generally larger than the outer diameter of the tube of the DTM and the circumference of the distal and proximal bases tube DTM are inscribed circles with respect to the respective bases of the PTFE tube. Belongs as a fragment in KGSB, GB represents both an independent pipe from DTM and its combination with other fragments of the cardiovascular system, made of the same material. In particular, GB may be a portion of the vessel, the vessel region which contains in its composition adventitia, e.g., na bifurcation one of its ends. Homografts Bolsunovsky provide better engraftment in the body of the prosthesis due to the almost complete elimination of the immunogenicity of epithelial cells and good sorption host cells kollogenovom frame, and also can be stored for over 90 days at a temperature of 0 + 4 C and about one year at cryopreservation in liquid nitrogen.