Syringe filler for insulin - draws from insulin bottle, with stopper and non-return valve

摘要

A plunger for drawing insulin from a bottle (2) includes an insert (4) and a hollow needle (8) which prevent the formation of air bubbles when filling the syringe (11). The filling mechanism includes a coupling part (5) with an annular recess (9) with a central duct (10) connected to an air-equalising needle (6). The air-equalising needle joins a duct (18) which via a micro filter (19) is open to the atmosphere.