BAXTER, Elliot,PLUMPTRE, David Aubrey,VEASEY, Robert,SLADEN, Sophie Louise,SALTER, Jamie
申请号：
EPEP2017/066296
公开号：
WO2018/002314A1
申请日:
2017.06.30
申请国别(地区):
EP
年份:
2018
代理人:
摘要：
The present invention is generally directed to a drug delivery device for selecting and dispensing a number of doses of a medicament. The drug delivery device comprises a medicament reservoir attached to a housing (10； 10'； 10'), a drive mechanism (30, 40) comprising a plunger (30； 30') axially movable relative to the housing (10； 10'； 10') for dispensing doses of the medicament from the medicament reservoir, a dose selecting element (60, 80； 60') releasably coupled to the drive mechanism and rotatable relative to the housing (10； 10'； 10') in a first direction for selecting a dose, a trigger (70； 70') axially movable relative to the housing (10； 10'； 10') for initiating dispensing of a dose selected by the dose selecting element (60, 80； 60'), and a limiter (100； 100'； 100''； 100') selectively permitting and preventing axial movement of the trigger (70； 70') depending on the amount of the selected dose. The limiter (100； 100'； 100''； 100') is rotationally constrained to the dose selecting element (60, 80； 60') and is axially constrained to the trigger (70； 70'). One of the limiter (100； 100'； 100''； 100') and a component part (110； 10') axially coupled to the housing (10； 10'； 10') comprises a track which is in engagement with a blocking feature (112； 112'； 12') of the other of the limiter (100； 100'； 100''； 100') and the component part axially coupled to the housing (10； 10'； 10'). The track comprises at least one narrow section limiting relative axial movement between the track and the blocking feature (112； 112'； 112') and at least one wide section permitting relative axial movement between the track and the blocking feature (112； 112'； 112').La présente invention concerne de manière générale un dispositif d'administration de médicament pour sélectionner et distribuer un certain nombre de doses d'un médicament. Le dispositif d'administration de médicament comprend un réservoir de médicament fixé à un boîtier (10； 10' ； 10''), un mécanisme d'entraînement (30, 40)
