Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...
Patent
1997-07-28
2000-04-18
Brouillette, D. Gabrielle
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Web, sheet or filament bases; compositions of bandages; or...
602 61, 602 62, 602 63, 602901, 604304, 604308, A61F 1300
Patent
active
060512490
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to dressings, in particular dressings for covering a protruding or a retracted part of the body, methods for preparing such dressings, the use of blanks in the form of a combined film for preparing such dressings and a method of treating a wound on a protruding part of the body.
BACKGROUND OF THE INVENTION
Conventionally, dressings for the treatment of wounds or pressure sores are essentially flat dressings which are sufficiently conformable to be applied to flat or curved areas of the body and possess a sufficient absorbent capacity to absorb wound exudate. Such flat dressings are not very suitable for applying on protruding parts of the body such as elbows, heels or the tips of fingers or toes.
Published EP application No. 0 573 708 discloses a process for the forming of means comprising hydrocolloid adhesives for wound treatment. This reference discloses production of means or dressings for treatment of wounds which means or dressings can be prepared in a continuous manner.
Published EP application No. 0 092 999 discloses an occlusive wound dressing which may be used for treatment of wounds on the skin and a particulate or granular material being able to act together with the exudate of the wound. Wounds secreting vast amounts of liquid may be treated by firstly applying the granulate material and then to cover the wound with the material for treating wounds. This reference is silent with respect to three-dimensional dressings and concentrate on wounds or damages from which a considerable amount of liquid is secreted.
U.S. Pat. No. 4,876,748 discloses a dressing containing a water-soluble or water-swellable hydrocolloid, a water-insoluble, viscous elastomeric binder and optionally a tackifier resin which is bevelled along all outer edges and optionally also, if annular, along the inner edge.
U.S. Pat. No. 4,367,732 discloses a skin barrier consisting of an elastic film, secured to the film a layer of at least weakly elastic adhesive material, these two components together having low resistance to quick deformation and rapid recovery to substantially the original shape after deformation, the plastic properties of the adhesive thereby being compensated by the elasticity of the film. Optionally there may be a protective cover on the other side of the adhesive layer. The adhesive material consists of a hydrocolloid dispersed in a continuous phase consisting of a mixture of a physically cross-linked elastomer, a hydrocarbon resin tackifier, a plasticizer for the elastomer, an antioxidant and optionally an oily extender. This reference does not disclose three-dimensional dressings.
DK patent No. 147,226 discloses a dressing having an adhesive layer and a water-proof polymer film. The dressing comprises a layer of pressure-sensitive adhesive and a water-impermeable flexible polymer film in which the adhesive comprises a rubbery elastomer in which is distributed a water-soluble or water-swellable hydrocolloid or a mixture of hydrocolloids, a tackifying resin and a plasticizer. Between the adhesive layer and the flexible polymer film is a layer of flexible foam having semi-open cells. The reference does not disclose three-dimensional dressings.
Published EP application No. 0 055 023 discloses an antiseptic adhesive comprising a natural or synthetic viscous rubbery mixture having one or more water-swellable hydrocolloids and antiseptic agents. It has been shown that having one or more antiseptic agents incorporated in the adhesive, the probability of bacterial growth will be reduced considerably and in many cases be totally avoided. The healing effect does not seem to be adversely afflicted. This reference does not mention three-dimensional dressings.
U.S. Pat. No. 3,348,541 discloses a prepared bandage complementary to the end of a finger including at least the first joint thereof, and having an adhesive strip for holding the bandage on the finger.
U.S. Pat. No. 2,847,005 discloses a surgical dressing for forming a finger cot. The dressing comprises an elo
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Brouillette D. Gabrielle
Coloplast A/S
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