Wound dressing comprising an indicator layer

Details Wound dressing comprising an indicator layer Wound dressing comprising an indicator layer

A - Human Necessities

61

L

A61L 15/56 (2006.01) A61L 15/00 (2006.01) A61L 15/28 (2006.01)

Patent

CA 2302420

A wound dressing is formed from a covering release layer, a dressing layer, an indicator layer, a transparent or translucent indicator bonding layer and a transparent or translucent outer covering. The indicator layer contains a dye which changes colour on contact with water. When the dressing layer becomes saturated, water permeates the indicator layer and triggers a colour change. The colour change is visible through the indicator bonding layer and outer covering and shows a carer that the dressing needs to be replaced.

L'invention concerne un pansement formé d'une couche antiadhérente de protection, d'une couche pansement proprement dite, d'une couche d'indicateur, d'une couche de fixation d'indicateur transparente ou translucide et d'un revêtement extérieur transparent ou translucide. La couche d'indicateur comporte un colorant qui change de couleur au contact de l'eau. Lorsque la couche pansement proprement dite est saturée, l'eau traverse la couche d'indicateur et déclenche un changement de couleur. Le changement de couleur est visible à travers la couche de fixation d'indicateur et le revêtement extérieur, et indique à l'aide soignant(e) que le pansement doit être changé.

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