Artificial arterial graft
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The material for this artificial blood vessel, used as an arterial graft,was developed in Japan by Nakao Yoshinobu, in collaboration with Hashimoto Yoshio and Kamiya Kisaku of Nagoya University. After many years of research, including research into traditional filter cloth weaving techniques, the vessel was developed and used in more than 1,000 operations, of which the majority were completely successful. The material is composed of polyester and tetrafluoroethylene fibres; it is formed into a seamless, flexible tube and coated with Teflon for Smpermeability to leakage. Inter-reaction between Teflon and human tissue is sufficiently small to prevent platelet coagulation and the formation of thrombi.
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