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    • 7. 发明申请
    • MEDICAMENT DELIVERY DEVICE HAVING GAS PROPELLANT
    • 具有气体推进剂的药物输送装置
    • WO2016170347A1
    • 2016-10-27
    • PCT/GB2016/051115
    • 2016-04-21
    • CONSORT MEDICAL PLC
    • ANDERSON, IanWILLOUGHBY, AlastairKOPPELMAN, Rachel
    • A61M5/20
    • A61M5/2046A61M5/326A61M2005/2013A61M2005/206A61M2205/8218
    • A medicament delivery device (10) comprising a syringe (12) having a barrel with an open end, and an axially moveable stopper (18) received in the barrel separating a first chamber axially forwards of the stopper from a second chamber axially rearwards of the stopper. The medicament delivery device further including an expandable drive housing (24) arranged to receive a propellant from a propellant source (36) for providing a vapour pressure, the expandable drive housing having a narrow channel in fluid communication with the second chamber. The expandable drive housing is expandable upon receiving propellant from the propellant source and, upon expansion, causes forward axial movement of the syringe. Propellant introduced into the expandable housing may pass through the narrow channel into the second chamber and cause forward axial movement of the stopper in the barrel to expel medicament contained in the first chamber through the open end, where axial movement of the stopper in the barrel commences after axial movement of the syringe.
    • 一种药物输送装置(10),包括具有开口端的筒的注射器(12)和容纳在所述筒中的可轴向移动的塞子(18),所述塞子将所述塞子的轴向前方的第一腔室与所述塞子的轴向向后的第二腔室分开 塞子。 所述药物输送装置还包括可扩张驱动壳体(24),所述可扩张驱动壳体(24)布置成从推进剂源(36)接收用于提供蒸汽压力的推进剂,所述可膨胀驱动壳体具有与所述第二腔室流体连通的窄通道。 当从推进剂源接收推进剂时,可膨胀驱动壳体可膨胀,并且在膨胀时引起注射器的向前轴向移动。 引入到可膨胀壳体中的推进剂可以穿过狭窄的通道进入第二腔室,并引起塞子在筒体中的向前轴向移动,以通过开口端排出包含在第一腔室中的药物,其中塞子在筒体中的轴向运动开始 在注射器的轴向移动之后。