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:
Jul. 22, 2025
Filed:
Sep. 28, 2021
Terumo Kabushiki Kaisha, Tokyo, JP;
Akira Kondo, Kanagawa, JP;
TERUMO KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A drug solution administration apparatus and a drug solution administration set in which the control unit can accurately detect completion of administration of a drug solution on the basis of the state of contact between the plunger and the switch. Before a drug solution administration apparatus is in use, a plunger included in the drug solution administration apparatus is disposed in a housing in the state where the plunger is non-contact with a switch, and a control unit is configured to, prior to start of administration of a drug solution, conduct an operation test of checking whether the switch is turned on when the plunger is moved forward by a predetermined distance and, after it is confirmed that the switch is turned on in the operation test, to perform an administration start operation for administering the drug solution.