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Details for Patent: 4,834,979

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Details for Patent: 4,834,979

Title: Medical bandage for administering beneficial drug
Abstract:A medical bandage is disclosed comprising a reservoir containing a gelled fluid, rheological agent and a drug. A method of using the bandage for producing a beneficial effect is disclosed also.
Inventor(s): Gale; Robert M. (Los Altos, CA)
Assignee: ALZA Corporation (Palo Alto, CA)
Filing Date:Dec 14, 1987
Application Number:07/132,827
Claims:1. A medical bandage for administering a drug, said bandage comprising: (1) a backing member defining one face surface of the bandage; (2) a rate controlling membrane formed of a material that meters the flow of a drug from the bandage defining the other face surface of the bandage, and disposed between (1) and (2); (3) a reservoir comprising a gelled fluid, a rheological agent selected from the group consisting of cellulose, polysaccharide, and silicone agents, and a drug.

2. The medical bandage for administering a drug according to claim 1 wherein the backing member contacts the rate controlling membrane to form a fluid-tight bandage.

3. The medical bandage for administering a drug according to claim 1 wherein the backing member is a laminate comprising a lamina of aluminzed polyethylene-terephthalate, a lamina of an ionomer, and a lamina of ethylene-vinyl acetate copolymer.

4. The medical bandage for administering a drug according to claim 1 wherein the backing member is a laminate comprising a lamina of polyethylene, a lamina of aluminized polyethyleneterephthalate and a lamina of ethylene-vinyl acetate copolymer.

5. The medical bandage for administering drug according to claim 1 wherein the rate controlling membrane is ethylenevinyl acetate copolymer.

6. The medical bandage for administering drug according to claim 1 wherein an adhesive is one the rate controlling membrane.

7. The medical bandage for administering drug according to claim 1 wherein the backing member and the rate controlling membrane form a fluid tight bandage, and an adhesive protective liner is in contact through the adhesive with the membrane.

8. The medical bandage for administering drug according to claim 1 wherein the rheological agent is silicon dioxide.

9. The medical bandage for administering drug according to claim 1 wherein the fluid is gelled silicon fluid.
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