Abstract: A compound made of a hyaluronic acid having from 300 to 30,000 repeating units and a polyalkylene oxide derivative having a specific structure and a specific molecular weight, wherein the content of the polyalkylene oxide derivative is from 5 to 100 equivalents per 100 equivalents of the carboxyl group of the hyaluronic acid; and a hydrogel containing the subject compound.

Abstract: A cylindrical body is produced which is composed of a fiber structure with a basis weight of 1-50 g/m2 and having a diameter of 0.5-50 mm and a bellows-shaped section, wherein the crest-to-crest spacing of the bellows-shaped section is no greater than 2 mm and the crest-to-valley depth of the bellows-shaped section is 0.01-1 mm; collagen is added to the cylindrical body to produce a composite comprising the cylindrical body and collagen.

Abstract: There is provided an elastin molded article having flexibility, a biological absorption property and tear strength which is practically suturable by using a fiber structure comprising aliphatic polyester fibers having an average fiber diameter of 0.05 to 50 ?m as a supporting base material. The elastin molded article is useful as a raw material for a tube or artificial blood vessel to be implanted in a body that has a biological absorption property and has tear strength and flexibility which allow the tube or artificial blood vessel to endure suture at the time of operation or the like.

Abstract: The invention relates to a honeycomb film made of a biodegradable polymer which has biodegradation properties as an anti-adhesion membrane for preventing adhesion after an operation, is excellent in handling properties, and exhibits a satisfactory adhesion preventive effect stably over a desired period of time, and to a production process of the same. Above all, the invention provides an anti-adhesion membrane of a honeycomb film made of polylactic acid as a biodegradable polymer and a phospholipid and a production process of the same.

Abstract: The adhesive agent composition of the present invention comprises from 50 to 90% by weight of an acrylic adhesive agent, 2.5 to 50% by weight of a polyhydric alcohol-containing liquid component, and 0.01 to 10% by weight of a salt of a mono- to tri-valence metal of an aliphatic acid that contains a hydrocarbon group of 8 to 18 carbon atoms. The adhesive agent composition shows good adhesion, cohesive force and permeability, and an adhesive drug composition having the above properties can be prepared by adding a drug (medicine, etc.) to the adhesive composition. An adhesive tape excellent in permeability or an adhesive tape preparation excellent in permeability and cutaneous absorption of the drug can be produced by coating a substrate with the adhesive agent composition or adhesive drug composition.