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:
Mar. 22, 2022
Filed:
Mar. 16, 2020
Applicant:
Terumo Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
TERUMO KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/315 (2006.01); A61M 5/145 (2006.01);
U.S. Cl.
CPC ...
A61M 5/31511 (2013.01); A61M 5/145 (2013.01); A61M 5/1452 (2013.01); A61M 5/315 (2013.01); A61M 5/31528 (2013.01); A61M 5/31583 (2013.01); A61M 5/14566 (2013.01); A61M 2005/3152 (2013.01);
Abstract
A plunger assembly of a drug solution dosage device includes a feed screw including a male thread portion and an extending portion, a first plunger including a first female thread portion, a second plunger including a nut accommodating portion, a nut member including a second female thread portion, and a base portion that guides the second plunger. The nut accommodating portion accommodates the nut member so that the nut member is non-rotatable and movable in an axial direction.