Abstract: A drug delivery device (1) comprising a housing (2), a delivery unit (3) including a drug container (6), and a control unit (4) mounted within the housing (2), the control unit comprising an on-body sensing system (5) including an electrode (56) connected to an electronic control system (47) of the control unit for measuring a capacitance value configured to detect whether the drug delivery device is positioned against a patient's skin, a skin contact wall (81) of the housing (2) having an inner side facing an inside of the housing in which the delivery unit and control unit are mounted, and an outer mounting side facing the outside of the housing and intended to be placed against the skin of a patient. The electrode (56) comprises a layer of metal mounted directly against the inner side of the skin contact wall.

Abstract: A drug delivery device (1), comprising a delivery unit (3) including a drug container (6), a liquid flow system (7), a pressurized gas source, and a casing (9) enclosing therein the drug container, the pressurized gas source and at least a part of the liquid flow system, the drug container comprising a barrel portion (6a) and a plunger (12) slidably mounted within the barrel portion and sealing the drug (78) within the container at one end of the barrel portion, the drug container being contained within a container receiving cavity (75) of a container casing portion (38) of the casing (9) and the container receiving cavity is fluidically interconnected to a fluid outlet (31) of the pressurized gas source in a gas tight manner, the pressurized gas source configured to supply pressurized gas in the container receiving cavity (75) thus applying pressure on a back end (73) of the plunger for delivery of the liquid drug.

Abstract: A drug delivery device (1), comprising a delivery unit (3) including a drug container (6) comprising a barrel portion (6a) and a plunger (12) slidably mounted within the barrel portion and sealing the drug (78) within the container at one end of the barrel portion, and a drive unit (4) comprising a pneumatic flow system (74) and a pneumatic pumping system configured to pump air via the pneumatic flow system (74) to a space behind the plunger to generate a gas pressure to advance the plunger in the container during drug delivery. The drug delivery device comprises a sealing adaptor (9) mounted on an end of the drug container facing an outer side of the plunger, the sealing adaptor (9) comprising a sealing plug (23) inserted inside an end of the barrel portion, the sealing plug (23) comprising an orifice (26) configured for pluggable sealing connection to a gas channel connector (40) of the pneumatic flow system.