Wound dressing
First Claim
1. A sterile, absorbent, non-adherent wound dressing suitable for use on deep wounds which dressing comprises an absorbent material contained within a porous bag, said absorbent material comprising individual pieces of a conformable, resilient, absorbent hydrophilic foam and said bag being formed from a perforated polymeric film and in which there is additionally present between the perforated polymeric film and the pieces of foam a non-woven fabric comprising a mixture of rayon and polypropylene fibers with an uncompressed thickness of from 0.4 to 2 mm.
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Accused Products
Abstract
An absorbent, non-adherent wound dressing suitable for use in deep and cavernous wounds is described. The dressing comprises an absorbent material in the form of individual pieces of a conformable, resilient, absorbent hydrophilic foam retained within a porous bag formed from a perforated polymeric film. In a preferred form the foam is a hydrophilic polyurethane foam and the perforated polymeric film is a contoured net of a thermoplastic elastomeric polymer. A non-woven fabric may be additionally present between the perforated polymeric film and the pieces of foam. The dressings can absorb large volumes of wound exudate without adhering to the wound.
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Citations
27 Claims
- 1. A sterile, absorbent, non-adherent wound dressing suitable for use on deep wounds which dressing comprises an absorbent material contained within a porous bag, said absorbent material comprising individual pieces of a conformable, resilient, absorbent hydrophilic foam and said bag being formed from a perforated polymeric film and in which there is additionally present between the perforated polymeric film and the pieces of foam a non-woven fabric comprising a mixture of rayon and polypropylene fibers with an uncompressed thickness of from 0.4 to 2 mm.
- 6. A sterile, absorbent, non-adherent wound dressing suitable for use on deep wounds which dressing comprises an absorbent material contained within a porous bag, said absorbent material comprising individual pieces of a comformable, resilient, absorbent hydrophilic foam and said bag being formed from a perforated polymeric film, in which the perforated film is in the form of a contoured net comprising a film of thermoplastic elastomer having depressions impressed out of the plane of the film each depression having an aperture at the bottom.
- 17. A method of treating a deep and exuding wound by applying to the wound a sterile absorbent, non-adherent wound dressing comprising an absorbent material contained within a water permeable porous bag, said absorbent material comprising individual pieces of conformable, resilient, absorbent hydrophilic foam and said bag being formed from a perforated polymeric film and in which there is additionally present between the perforated polymeric film and the pieces of foam a non-woven fabric comprising a mixture of rayon and polypropylene fibers with an uncompressed thickness of from 0.4 to 2 mm.
- 22. A method of treating a deep and exuding wound by applying to the wound a sterile absorbent, non-adherent wound dressing comprising an absorbent material contained within a water permeable porous bag, said absorbent material comprising individual pieces of a conformable, resilient, absorbent hydrophilic foam and said bag being formed from a perforated polymeric film, in which the perforated polymeric film is in the form of a contoured net comprising a film of thermoplastic elastomer having depressions impressed out of the plane of the film each depression having an aperture at the bottom.
Specification