Teikoku Seiyaku Co., Ltd.

Takehiko Ohura

Takashi Kamakura

Makoto Takahashi

Yukiko Inamoto

Shigeyuki Inamoto

Aki Sato

Wound bed preparation in a skin wound area can be carried out by using a hydrogel sheet, wherein the hydrogel sheet is prepared by spreading a hydrogel containing a water-soluble polymer, glycerin, and water on a two-layered laminated film consisting of a polyurethane film and a hydrophobic fiber and the moisture permeability of the hydrogel sheet is 200-2000 (g/m/24 h).

Method for using hydrogel sheet for treating wound

A wound-covering hydrogel material which has excellent stretchability and absorbs exudates from wounds. It can maintain over long a wet environment which is suitable for accelerating the healing of wounds. There is no fear of causing pain or damaging the regenerated skin when the wound-covering hydrogel material is replaced with a fresh one. The wound-covering hydrogel material prepared by spreading a hydrogel comprising a water-soluble semi-synthetic polymer, glycerol and water, on a laminated two-layer film composed of a polyurethane film and hydrophobic fibers. The covering material has a moisture permeability as measured by the cup method in accordance with JIS Z0208 of 500-2,000 (g/m/24 h).

Wound-covering hydrogel material

An apparatus and a method for simulatively measuring an environment in a microspace between human skin and a wound dressing. The simulative environment-measuring apparatus includes a constant temperature-and-humidity chamber (); a heat exchanger () disposed in the chamber; a constant temperature water bath () and a pump () for supplying warm water to the heat exchanger; and a container () set on the heat exchanger. The container holds a water retentive member () therein, and is covered with a water vapor diffusion-controlling member (). A microspace () formed between the water vapor diffusion-controlling member and a wound dressing () is a simulatively reproduced space between human skin and the wound dressing. A thin temperature-and-humidity sensor () is set in the microspace to measure temperature and humidity. When plural containers are used, the environments of plural wound dressings can be measured at once.

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Sapporo, Japan

Takehiko Ohura