Toray Industries, Inc.

Kyohei Yamashita

Satoshi Yamada

Masataka Nakamura

Kazuhiro Tanahashi

Hiroshi Tsuchikura

Hiroshi Takahashi

Koji Kadowaki

Nobuaki Tanaka

Takeshi Ishigaki

Shungo Kanda

A blood treatment material adsorbs and removes blood components such as activated leukocytes and inflammatory cytokines with a high efficiency. The blood treatment material includes a water-insoluble material in the form of fibers or particles, wherein the difference between the maximum value (RaA) and the minimum value (RaB) of the arithmetic average roughness (Ra) of the surface of the water-insoluble material, as calculated using a laser microscope, is from 0.30 to 1.50 μm.

Blood treatment material

A tubular structure has succeeded in achieving excellent puncture resistance as well as maintenance of flexibility in a base by covering the base with a cover having excellent flexibility. The tubular structure includes a tubular base and a cover which covers the base, wherein the cover includes a copolymer containing a silicone monomer and a polymerizable monomer having a fluoroalkyl group(s) as monomer units.

Cylindrical structure

Disclosed are: a polymer for treating the surface of a medical device such as a contact lens to suppress the reduction in lubricity of the device even when the device is scrubbed; a medical device having the polymer on the surface so that the reduction in lubricity over time is suppressed; and a wetting agent containing the polymer. The polymer for treating the surface is a copolymer which is water-soluble and includes as constitutional units the following monomers A and B: monomer A: a monomer containing a (meth)acryloyl group and an ester or amide structure in a molecule, in which the ester or amide structure is not constituted by including a part of the (meth)acryloyl group; monomer B: a monomer containing a (meth)acrylamide group in a molecule and having a structure different from that of the monomer A.

Copolymer, wetting agent, medical device, and method for producing same

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Otsu, Japan

Kyohei Yamashita