Wound dressing materials

Details Wound dressing materials Wound dressing materials

1977-11-10

1980-11-18

Rosenbaum, C. Fred

Surgery

Truss

Pad

A61L 1500

Patent

active

042339693

ABSTRACT:
A wound dressing material, particularly for burns, comprises a sheet of synthetic plastics material which is permeable to water vapor and air, preferably a polyurethane produced by polymerization of an isocyanate capped polyoxyethylene polyol, without any substantial amount of water present, using a cross-linking agent which reacts with the isocyanate groups. The polyol and cross-linking agent, and preferably also an alkylene oxide surfactant, are agitated to form an aerated mix, spread on a release paper, and heated so that polymerization begins in the exposed upper surface, so as to form a sheet having a dense outer region which is impervious to liquids, a cellular region beneath the dense region, and a smooth glazed surface for application to a wound.

REFERENCES:
patent: 3157178 (1964-11-01), Bentov
patent: 3648692 (1972-03-01), Wheeler
patent: 3763858 (1973-10-01), Buese
patent: 3800792 (1974-04-01), McKnight et al.
patent: 3849238 (1974-11-01), Gould et al.
patent: 3927669 (1975-12-01), Glatt
patent: 3949742 (1976-04-01), Nowakowski
patent: 3972328 (1976-08-01), Chen
patent: 3975567 (1976-08-01), Lock

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