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1. (WO2018180567) MEDICAL LIQUID ADMINISTRATION DEVICE AND GASKET URGING MEMBER ASSEMBLY

Pub. No.:    WO/2018/180567    International Application No.:    PCT/JP2018/010346
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 16 00:59:59 CET 2018
IPC: A61M 5/20
Applicants: TERUMO KABUSHIKI KAISHA
テルモ株式会社
Inventors: TAKEMOTO Masafumi
竹本 昌史
Title: MEDICAL LIQUID ADMINISTRATION DEVICE AND GASKET URGING MEMBER ASSEMBLY
Abstract:
This medical liquid administration device 1 is provided with a prefilled syringe 10 and a gasket urging member assembly 20. The urging member assembly is provided with: a gasket pressing member 5 for pressing a gasket 3; a flange mounting member 7 mounted to the prefilled syringe; an urging member 6 contained between the pressing member and the flange mounting member; and an operating member 9 having an engagement holding section 93. The pressing member 5 is provided with an engagement section 541 engaging with the flange mounting member. The engagement section 541 is provided with a contact section 542. When an engaged state holding section is received in the engagement section 541, the deformation of the engagement section is restricted to hold the engagement between the engagement section 541 and the flange mounting section 7.