Abstract: The present invention provides a production method of a filament for which a hydrogel having lower strength than a native collagen gel can be used as a raw material. The present invention provides a filament obtained by the above production method and having excellent strength. The production method of the filament includes a step A of irradiating columnar hydrogel with ultraviolet rays; step B of vitrifying the columnar hydrogel after irradiation with the ultraviolet rays to obtain a filamentous hydrogel dried body; and a step C of rehydrating the filamentous hydrogel dried body to obtain a filamentous vitrigel, in this order. The filament is formed of a vitrigel dried body, and to which a hydrophobic solvent is adhered or impregnated.

Abstract: The present invention addresses the problem of providing an artificial skin preparation which requires no suturing or the like when treating a wound area with a dried collagen vitrigel membrane material as an artificial skin, and also is less likely to cause contamination or the like with an exudate, and is free from the risk of secondary damage by replacement thereof.

Abstract: A recording/reproducing device including a recording/reproducing unit for recording/reproducing TV signals, and input device for inputting second signals of a system other than the TV signal system and a converter capable of converting the second signals into the same as signals at the TV signal recording time, wherein the second signals is capable of being recorded by the converter.

Abstract: This invention provides an antirheumatic composition which comprises a lipid-bound glycosaminoglycan or a salt thereof as an active ingredient and a pharmaceutically acceptable carrier and has an effect to inhibit extension of pannus.