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. 11, 2022
Filed:
Feb. 20, 2018
Applicant:
Hisamitsu Pharmaceutical Co., Inc., Tosu, JP;
Inventors:
Assignee:
HISAMITSU PHARMACEUTICAL CO., INC., Tosu, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61M 37/00 (2006.01); A61K 9/00 (2006.01); A61K 9/70 (2006.01);
U.S. Cl.
CPC ...
A61M 37/0015 (2013.01); A61K 9/0021 (2013.01); A61K 9/703 (2013.01); A61M 2037/0023 (2013.01); A61M 2037/0053 (2013.01); A61M 2037/0061 (2013.01);
Abstract
A microneedle device of the present invention comprises a substrate, microneedles disposed on the substrate, and a coating layer formed on the microneedles, wherein a length of the microneedles is 300 to 500 μm, the microneedles are disposed on the substrate at a density of 28 to 80 needles/cm, and the coating layer comprises a biologically active substance. The microneedle device allows the skin irritation caused by administration of an agent to be reduced.