The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 1994
Filed:
Mar. 24, 1992
Robert V Petersen, Murray, UT (US);
Tsung-Min Hsu, Union City, CA (US);
Han-Chen Lee, Salt Lake City, UT (US);
Don Christy, Albany, NY (US);
University of Utah, Salt Lake City, UT (US);
Abstract
A percutaneous drug delivery method and enhancement composition are disclosed. The method comprises applying an enzyme preparation containing suitable amounts of non-enzyme permeation enhancers, such as lactam compounds (e.g. 1-substituted-azacycloheptan-2-one), and propylene glycol to a localized area of skin for a predetermined amount of time to enhance that area of skin's permeability to selected drug(s); occluding the area of skin during the application; and then applying the selected drug(s) to the area of skin to allow the drug to penetrate through the skin and into the circulatory system of the animal. Greatly enhanced penetration of chemicals through the skin results from the described treatment.