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:
Aug. 06, 2019
Filed:
Jan. 09, 2017
Applicant:
Toppan Printing Co., Ltd., Taito-ku, JP;
Inventor:
Yoshihiro Kodama, Taito-ku, JP;
Assignee:
TOPPAN PRINTING CO., LTD., Taito-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 5/32 (2006.01); A61M 37/00 (2006.01);
U.S. Cl.
CPC ...
A61M 37/0015 (2013.01); A61M 5/3298 (2013.01); A61M 37/00 (2013.01); A61M 2037/003 (2013.01); A61M 2037/0023 (2013.01); A61M 2037/0061 (2013.01); A61M 2205/02 (2013.01);
Abstract
An injection device including a microneedle structure including a substrate having a first surface and a second surface opposite to the first surface, and a protrusion protruding from the first surface in a direction opposite to the second surface, the protrusion having a through hole which penetrates from a tip of the protrusion to the second surface in the direction of the protrusion such that a liquid flows through the through hole, and one or more check valves positioned to stop the liquid flowing from the second surface.