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1. (WO2017157396) AN INJECTOR WITH REDUCED BREAK LOOSE FORCE

Pub. No.:    WO/2017/157396    International Application No.:    PCT/DK2017/050070
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Tue Mar 14 00:59:59 CET 2017
IPC: A61M 5/315
Applicants: INJECTO A/S
Inventors: HETTING, Mikael
Title: AN INJECTOR WITH REDUCED BREAK LOOSE FORCE
Abstract:
The present invention relates to an injector for delivery of a pharmaceutical composition, the injector comprising - a cylinder extending along a longitudinal axis, the cylinder having an inner wall, an outer wall, and an outlet at an outlet end opposite an actuating end, - a piston assembly comprising a compressible section between an actuating piston element and a passive piston element, which piston elements abut the inner wall of the cylinder at abutting interfaces thereby sealing the compressible section when the piston assembly is inserted in the cylinder, the compressible section comprising a compressible fluid and a resilient frame linking the actuating piston element to the passive piston element. The injector is suited for pre-filled injectors allowing long term storage of protein based pharmaceutical compositions.