A method of closing the distal end of an ampoule (322) is shown. The ampoule (322) has a variable diameter head portion (331) having a locating surface (350) and an opening. A septum (327) is positioned on the opening and secured to the head portion (331) with a ferrule (324) using a plunger. The plunger exerts a force in a proximal direction to press the ferrule (324) on the head portion (331) until the press causes the ferrule (324) to contact the locating surface (350).Further, the ampoule (322) for use in a cartridge (320) for a drug delivery device (100) has non-standard dimensions to provide a coding system to reduce the risk of a user dispensing the wrong medicament from the drug delivery device (100).顯示一種關閉安瓶(322)末端的方法。安瓶(322)具有:變動直徑之頭部(331),此頭部具有定位表面(350)及開口。一間隔件(327)係位於該開口上並利用活塞固定至具有套環(324)的頭部(331)。活塞在近接方向上施力以將套環(324)壓在頭部(331)上直到該壓迫使得套環(324)接觸該定位表面(350)為止。又,用於藥劑輸送裝置(100)之藥劑筒(320)中的安瓶(322)具有非標準尺寸以提供一規範系統,俾以降低使用者自藥劑輸送裝置(100)施用錯誤藥劑的風險。322...安瓶324...套環327...間隔件335...肩部350...表面400...壓迫件401...方向405...滾動板406...方向411...力
