Multi-layer absorbent wound dressing

Details Multi-layer absorbent wound dressing Multi-layer absorbent wound dressing

A - Human Necessities

61

L

A61L 15/24 (2006.01) A61F 13/02 (2006.01) A61F 13/15 (2006.01) B32B 7/02 (2006.01) B32B 27/06 (2006.01) B32B 27/08 (2006.01) B32B 27/32 (2006.01) C08F 220/28 (2006.01) C08F 290/06 (2006.01)

Patent

CA 2420094

A multi-layer wound dressing comprising at least two absorbent layers, and materials for forming absorbent layers are provided. The absorbent layers have different absorbencies, with the layer closest to the wound having a lower absorbency than the layer furthest from the wound. The wound dressing typically contains additional non-absorbing layers, such as a backing film and wound-facing film. The dressing provides absorbency of wound exudates while preventing the absorbent material from entering the wound. In specific implementations the dressing is substantially transparent prior to application to a wound, as well as after application to the wound when body fluids have been absorbed.

L'invention concerne un pansement multicouche comprenant au moins deux couches absorbantes, ainsi que des mat~riaux servant ~ la formation des couches absorbantes. Ces derni­res poss­dent diff~rents pouvoirs absorbants, la couche la plus proche de la plaie ~tant moins absorbante que la couche la plus ~loign~e. Le pansement comporte habituellement des couches suppl~mentaires non absorbantes, telles qu'un film support et un film face ~ la plaie. Le pansement permet d'absorber les exsudats de la plaie tout en empÚchant la mati­re absorbante d'y p~n~trer. Dans des modes de r~alisation sp~cifiques, le pansement est sensiblement transparent avant son application sur une plaie, ainsi qu'apr­s son application sur la plaie lorsque les fluides corporels ont ~t~ absorb~s.

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