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:
Nov. 15, 2022
Filed:
Sep. 27, 2019
Terumo Kabushiki Kaisha, Tokyo, JP;
Masafumi Takemoto, Shizuoka, JP;
TERUMO KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A liquid medicine administration device includes a prefilled syringe and a gasket biasing member assembly. The biasing member assembly includes: a gasket pressing member configured to press a gasket; a flange attachment member attached to the prefilled syringe; a biasing member housed between the pressing member and the flange attachment member; and an operating member including an engagement holding portion. The pressing member includes an engagement portion to be engaged with the flange attachment member. When the engagement holding portion is located at an abutment position, deformation of a deformable portion is inhibited by abutment between the engagement holding portion and an abutment portion of a deformable portion, and engagement between the engagement portion and the attachment member body portion is held.