The present invention relates to a disposable cartridge for a drug delivery device, the cartridge comprising: - a flexible bag (81； 181) to accommodate a liquid medicament and having an opening (81a, 181a) adjacent to a sidewall (81b, 181b), - a socket (76, 176) having a fluid channel (86； 186) in fluid communication with a cartridge fluid coupling (90； 190), wherein the socket (76, 176) extends into the opening (81a, 181a) of the flexible bag (81； 181), - a housing (71； 171) covering at least a portion of the flexible bag (81； 181) and having a receptacle (71a, 171a) to receive the socket (76； 176) with the flexible bag (81； 181), wherein the flexible bag’s (81； 181) sidewall (81b； 181b) is fixed between the socket (76； 176) and the receptacle (71a, 171a).本發明係有關一用於一藥物輸送裝置的可棄式匣，該匣係包含：- 一撓性袋(81,181)，其用以容納一液體藥劑且具有一與一側壁(81b,181b)相鄰之開口(81a,181a)，- 一插座(76,176)，其具有與一匣流體耦合件(90,190)呈流體通聯之一流體通路(86,186)，其中插座(76,176)延伸至撓性袋(81,181)的開口(81a,181a)中，- 一殼體(71,171)，其覆蓋撓性袋(81,181)的至少一部分且具有一容槽(71a,171a)以接收擁有撓性袋(81,181)之插座(76,176)，其中撓性袋(81,181)的側壁(81b,181b)被固定於插座(76,176)與容槽(71a,171a)之間。
