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    A MEDICAL INJECTION DEVICE WITH A CLEANING CHAMBER
    1.
    发明公开
    A MEDICAL INJECTION DEVICE WITH A CLEANING CHAMBER 审中-公开

    公开(公告)号：EP3341044A1

    公开(公告)日：2018-07-04

    申请号：EP16748310.6

    申请日：2016-08-10

    申请人： Novo Nordisk A/S

    发明人： HARALDSTED, Mie ,  FREDERIKSEN, Morten Revsgaard ,  MELANDER, Matias ,  NIELSEN, Christian Højris ,  HINDE, Graham ,  KAMP, Bas ,  HAKKIM, Roshan

    IPC分类号： A61M5/00 ,  A61M5/315 ,  A61M5/32 ,  A61M5/20 ,  A61M5/28

    摘要： The invention relates to an injection device for injecting a liquid drug. The injection device comprises a housing assembly supporting a non-removable cartridge having an interior chamber containing the liquid drug to be injected and a reusable needle cannula connected to the cartridge. A needle shield assembly provided with a cleaning chamber containing a volume of a cleaning agent for cleaning at least the distal tip of the needle cannula between subsequent injections is further provided. The needle shield assembly is axially movable in a proximal direction in relation to the housing assembly from a first position to a second position upon rotation of at least a part of the needle shield assembly, wherein the first position is a position in which the distal tip of the needle cannula is located inside the cleaning chamber thereby cleansing the distal tip of the needle cannula, and the second position is a position in which the distal tip of the needle cannula is located outside and distal to the cleaning chamber for equalizing the pressure in the cartridge.