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:
Apr. 16, 2013
Filed:
Feb. 07, 2007
Seiji Tokumoto, Tsukuba, JP;
Toshiyuki Matsudo, Tsukuba, JP;
Tetsuji Kuwahara, Tsukuba, JP;
Hisamitsu Pharmaceuticals Co., Inc., Saga, JP;
Abstract
It is intended to provide a transdermal drug administration apparatus having microneedles, which is capable of piercing the skin by a simple procedure in the transdermal administration of a biologically active substance (drug) and allows rapid absorption of the biologically active substance. The present apparatus comprises a microneedle device () comprising a microneedle substrate () having a plurality of microneedles () capable of piercing the skin, an absorbent () disposed thereon, the absorbent () comprising a material capable of absorbing a liquid, and a dissolving solution reservoir () disposed on the absorbent (), the dissolving solution reservoir () containing a dissolving solution () for dissolving a drug and being capable of disrupting a diaphragm () provided the dissolving solution reservoir () and the absorbent () by pressing. A coating containing a dry drug is disposed on the microneedles () and/or the microneedle substrate ().