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A wound dressing material featuring polyurethane foam integrated into a solid substrate
A wound dressing material featuring polyurethane foam integrated into a solid substrate
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机译:伤口敷料材料,其特征是聚氨酯泡沫集成到固体基质中
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摘要
A wound dressing material 10 comprising a solid substrate 12 having interstitial spaces therein, wherein said interstitial spaces are at least partially filled by hydrophilic polyurethane Foam 14. The solid substrate 12 may be a woven or nonwoven fibrous web or an open-cell foam. The polyurethane foam 14 may be distributed substantially uniformly through the substrate or applied to one side of it. Also provided is a method of making a porous wound dressing material comprising the steps of: providing a sheet of a solid substrate having interstitial spaces therein; applying a fluid polyurethane foam prepolymer mixture to at least one surface of said solid substrate; and curing said prepolymer in contact with said solid substrate.
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