A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
128/61
A61F 13/00 (2006.01) A61F 13/15 (2006.01)
Patent
CA 1314452
1870001 PERFORATED ELASTOMERIC SOFT FILM AND WOUND DRESSING MADE THEREWITH ABSTRACT OF THE DISCLOSURE The perforations in a film-faced wound dressing have been discovered to have edges which, though clearly defin- ed, lack the ability to cut the neoepithelium of a healing wound, with the result that the film affords an unexpect- edly high degree of comfort during movement of the patient- and most particularly, when the dressing is changed. This occurs in a thin, soft, self supporting elastomeric film, such as a polyether polyurethane (PPU) film, having less than 10% crystallinity. The film provides a degree of conformability not attained heretofore; has a softness and elastomeric quality which results in reduced shear assoc- iated with the edges of its perforations as compared with the sharp cutting edges of perforations in plastic film; has excellent release characteristics enhanced by less than 25% open area (due to perforations) which minimizes the open area into which the neoepithelium may grow.
541281
Lubizol Advanced Materials Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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