Dressing and preparation delivery system
First Claim
1. A method of treating a wound with a dressing material, comprising:
- forming a gel with a gel forming, amount of a water soluble or water swellable pharmaceutically acceptable polymer;
dehydrating the gel to a preparation in the form a foam or powder form of the gel material;
applying the preparation in either a rehydrated or non-rehydrated form to the wound site;
the foam or powder in a suitable form, that it will adhere to a wound site for at least 24 hours and during that time, enhance healing of the wound and help prevent infection of the wound.
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Abstract
A dressing and method of treating wounds is provided. The dressing can comprise water-soluble or swellable polymers which are capable of forming a viscous aqueous or non-aqueous solution and form a gel, particularly a foam form of the gel. The dressing can be constructed in the form of a sponge or sheet impregnated with the gel, or coated onto a non-porous, porous or micro-porous substrate. The dressing can also be provided in a form of a dehydrated powder, such as one which can be sprinkled under a flap of tissue and which will hold the flap down as a substitute for the use of stitches. Wounds treated with dressings in accordance with embodiment of the invention will tend to heal without the formation of a typical hard scab. The gel provides an excellent surface from which to apply tooth whitener to the teeth. The solubility of the material may be adjusted through the addition of non-interacting secondary raw materials to the liquid state formulation mix, or sprayed over the completed product to form a bi-layer, tri-layer, or other multiple layer material that can demonstrate varied solubility and degradation over time when compared to a single formulation mix and subsequent freeze drying or other means of processing to form the desired product.
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Citations
30 Claims
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1. A method of treating a wound with a dressing material, comprising:
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forming a gel with a gel forming, amount of a water soluble or water swellable pharmaceutically acceptable polymer;
dehydrating the gel to a preparation in the form a foam or powder form of the gel material;
applying the preparation in either a rehydrated or non-rehydrated form to the wound site;
the foam or powder in a suitable form, that it will adhere to a wound site for at least 24 hours and during that time, enhance healing of the wound and help prevent infection of the wound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A dressing for treating wounds, comprising the dehydrated form of a gel formed from a biocompatable polymer and water, said dehydrated gel being in the form of a foam sheet or a powder that will adhere to tissue at a wound site, promote healing of a wound covered by the dressing and help protect the wound from infection.
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17. A wound dressing comprising the acid form of polycarbophil in the form of a gel, foam or powder.
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18. A method of treating a wound, comprising:
applying the dehydrated powder or foam form of an aqueous based gel of a polymer comprising polycarbophil to the wound. - View Dependent Claims (19, 20)
- 21. A tooth whitener, comprising a layer of polycarbophil having tooth whitening material combined therewith.
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25. A method of whitening teeth, comprising forming a gel with a gel forming amount of a water soluble or water swellable pharmaceutically acceptable polymer;
- dehydrating the gel and forming a sheet of dehydrated gel material;
combining the gel with tooth whitening material before of after the gel is dehydrated; and
adhering the layer of gel with tooth whitener to the teeth. - View Dependent Claims (26, 27, 28, 29, 30)
- dehydrating the gel and forming a sheet of dehydrated gel material;
Specification