Toray Industries, Inc.

Tetsunosuke Kunitomo

Hiroshi Kataoka

Takuichi Kobayashi

Kazumi Tanaka

Nobuo Ida

Hideki Kenjo

Ryozo Terada

Takeshi Yoshioka

Syoji Nagaoka

Hiroshi Tanzawa

Anti-thrombogenic blood treating system

This invention provides method and membrane for hemodialysis which has a total protein permeability of not more than 0.2%, and has a reduction rate of .beta..sub.2 -microglobulin of not less than 5%. The hemodialysis membrane of the present invention selectively removes .beta..sub.2 -microglobulin which was shown to cause some long-term complications such as carpal tunnel syndrome in the patients undergoing hemodialysis, while preventing the leakage of useful proteins.

Hemodialysis method and membrane

This invention provides method and membrane for hemodialysis which has a total protein permeability of not more than 0.2%, and has a reduction rate of .beta.2-microglobulin of not less than 5%. The hemodialysis membrane of the present invention selectively removes .beta.2-microglobulin which was shown to cause some long-term complications such as carpal tunnel syndrome in the patients undergoing hemodialysis, while preventing the leakage of useful proteins.

Hemodialysis membrane

Column for removing .beta..sub.2 -microglobulin

Contact lens having high water content make from polymer of cross-link-polymerized N-vinyl pyrrolidone in the presence of water-insoluble polymer has excellent properties suitable for continuous wearing for a long period of time.

Cross-linked n-vinyl pyrrolidone polymer composition suitable for

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Kamakura, Japan

Tetsunosuke Kunitomo