DLA Piper LLP (US)
Artificial blood vessel
An artificial blood vessel is composed of a cylindrical multiple-woven fabric structure allowing only a small amount of blood leakage and can achieve both antithrombogenicity and cellular affinity. The artificial blood vessel includes a cylindrical fabric structure in which a cylindrical fabric whose inside contacts blood is arranged, wherein the cylindrical fabric is a fabric prepared by interlacing a plurality of warp yarns and a plurality of weft yarns with each other into a cylindrical shape; the warp yarns and the weft yarns constituting the cylindrical fabric include a multifilament yarn having a single yarn fineness of not more than 0.50 dtex, and are bound to an antithrombogenic material; the antithrombogenic material forms an antithrombogenic material layer having a thickness of 1 to 600 nm inside the cylindrical fabric; and the water permeability under conditions where a pressure of 16 kPa is applied to the inner surface is less than 300 mL/cm2/min.
Toray Industries, Inc.
A D A A A D A A D A A
A61L D10B A61F A61F A61L D03D A61L A61L D03D A61L A61F
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Yuka Kazuhiro Koji Hiroshi Satoshi Masaki
Sakaguchi Tanahashi Kadowaki Tsuchikura Yamada Fujita