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. 01, 2004
Filed:
Jun. 06, 1996
Applicant:
Inventors:
Shigeo Yanai, Himeji, JP;
Katsumi Iga, Suita, JP;
Yukihiro Matsumoto, Ikeda, JP;
Naruhito Higo, Ryugasaki, JP;
Assignee:
Hisamitsu Pharmaceutical Co., Inc., Saga, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/10 ; A61K 4/732 ; A61K 3/700 ; A61N 1/30 ;
U.S. Cl.
CPC ...
A61K 9/10 ; A61K 4/732 ; A61K 3/700 ; A61N 1/30 ;
Abstract
A hydrophilic membrane having a low adsorptivity for a protein is disposed, as an interface, on a side to be contacted with a skin, and a drug such as a physiologically active peptide is transdermally delivered by iontophoresis. The membrane has an adsorptivity for a protein of not greater than 10 &mgr;g/cm . The thickness of the membrane is about 10 to 200 &mgr;m, and the porosity of the membrane is about 60 to 90%. Such membrane includes a hydrophilized fluororesin membrane, a hydrophilized polysulfone membrane and a hydrophilized cellulose derivative membrane.