A wound dressing combining a graduated density felt 1 with an absorbent fiber layer 2 in order that the aggressive absorption of the absorbent layer 2 may be regulated to acceptable rates for wound dressing usage and to ensure potentially irritative alginate absorbent fibers are isolated from the wound...http://www.google.es/patents/US6077526?utm_source=gb-gplus-sharePatente US6077526 - Wound dressing
