A surgical dressing comprises a slab or strip of open-cell synthetic foam material sandwiched between layers of gauze. The foam slab provides good absorption capacity and homogeneity to the dressing while reducing adherence to dried wounds. The foam slab also adds some rigidity to a strip...http://www.google.es/patents/US5685834?utm_source=gb-gplus-sharePatente US5685834 - Surgical dressing material
