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:
Jun. 24, 2003
Filed:
Nov. 17, 1997
Burton H. Sage, Jr., Raleigh, NC (US);
John R. DeNuzzio, Chapel Hill, NC (US);
C. Randolph Bock, Durham, NC (US);
John L. Haynes, Chapel Hill, NC (US);
Vilambi Reddy, Bloomingdale, NJ (US);
Vyteris, Inc., Fair Lawn, NJ (US);
Abstract
The present invention claims an apparatus for transdermal delivery of medicaments, with novel electrode systems, which avoids burns caused by changes in pH or excessive current applied at the sight of delivery, which is low in cost and easy to manufacture. In the present invention, preferably, the anode of the electrode system is predominantly formed from a low-cost bulk base metal which includes a coating of a precious metal thereon. The cathode of the electrode system is preferably formed from an chemically inert material which is a poor electron condutor and is coated on a good electron conductive material which has poor chemical stability. The electrode system of the present invention is highly efficient, easy to manufacture and cost-effective.