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:
Oct. 28, 1997
Filed:
Sep. 08, 1994
Terry M Haber, El Toro, CA (US);
William H Smedley, Lake Elsinore, CA (US);
Clark B Foster, Laguna Niguel, CA (US);
Habley Medical Technology Corporation, Lake Forest, CA (US);
Abstract
A compact, single use pad applicator is disclosed having a dry medication (e.g. a dehydrated topical astringent disinfectant that is adapted to treat acne and has been reduced to crystalline form by lyophilization) stored in a first chamber. A liquid diluent is stored in a second chamber. Fluid communication between the first and second chambers is blocked by a normally closed, pressure activated valve or seal. By compressing the second chamber, a corresponding hydraulic pressure is generated in the diluent which opens the valve. Accordingly, the diluent in the second chamber is introduced under pressure to the dry medication in the first chamber to rehydrate and activate the acne medication. The reconstituted multi-constituent liquid medication is absorbed by a pad-shaped swab so as to be applied directly to a relatively wide tissue area as a topical treatment for acne or other skin disorders.