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    INHALATION DEVICE AND METHOD
    4.
    发明公开
    INHALATION DEVICE AND METHOD 审中-公开

    公开(公告)号：EP4226959A1

    公开(公告)日：2023-08-16

    申请号：EP23162900.7

    申请日：2018-04-30

    申请人： Softhale NV

    发明人： Rawert, Jürgen ,  Bartels, Frank

    IPC分类号： A61M11/00 ,  A61M15/00 ,  B05B11/10

    摘要： The invention relates to the field of inhalation devices for liquids. In particular, the invention relates to an inhalation device having improved flow characteristics.
    A inhalation device for medically active liquids (F) for generation of an aerosol comprises a housing (1), inside this housing (1) a reservoir (2) for storing a liquid (F), a pumping device with a hollow cylinder (9) providing a pumping chamber (3) for the generation of a pressure inside said pumping chamber (3), wherein the pumping chamber is fluidically connected with the reservoir (2) via an inlet check valve (4) which blocks in direction of the reservoir (2), a riser pipe (5) which can be received with at least one reservoir-facing, interior end (5A) in said hollow cylinder (9), and a nozzle (6) which is connected liquid-tight to an exterior end (5B) of the riser pipe (5), wherein the volume of the pumping chamber (3) is changeable by means of relative motion of the cylinder (9) to the riser pipe (5), and is characterised in that the riser pipe (5) is immobile and firmly attached to the housing (1) and to the nozzle (6), whereas the hollow cylinder (9) is moveable relative to the housing (1) and to the nozzle (6).
    The invention also discloses a method for the generation of an aerosol of a medically active liquid (F) by means of an inhalation device.

    IMPROVED INHALATION DEVICE
    9.
    发明公开
    IMPROVED INHALATION DEVICE 审中-公开

    公开(公告)号：EP4275725A3

    公开(公告)日：2024-01-10

    申请号：EP23194155.0

    申请日：2019-07-12

    申请人： Softhale NV

    发明人： Bartels, Frank ,  Rawert, Jürgen

    IPC分类号： B05B11/00 ,  A61M15/00 ,  A61M11/00

    摘要： The invention relates to the field of inhalation devices for liquids. In particular, the invention relates to a liquid emission mechanism for an inhalation device, as well as a method of emitting a liquid from an inhalation device.
    The inhalation device comprises a housing (1), a reservoir (2) for storing a liquid, a pumping unit, said unit comprising a riser pipe (5), a hollow cylindrical part (3) having an interior space and being linearly moveable on the riser pipe (5), wherein the pumping chamber is fluidically connected with the reservoir (2), and a nozzle (6) which is connected liquid-tight to an downstream end portion (5B) of the riser pipe (5), and wherein said linear relative motion can be effected by a relative rotation around a rotational axis (R) of a rotatable part (1A) with respect to a counterpart (1B), such that said relative rotation is converted into said linear relative motion by means of a gear mechanism comprising at least one cam surface having a first section (9A) and a second section (9B), and wherein a means for the storage of potential energy (7) is provided. The device is characterized in that said cam surface has, between the first section and the second section (9A, 9B), a third section (9C) of constant height, such that, while said counterpart (1B) slides along said third section (9C), no linear relative motion occurs.
    A method for the generation of an aerosol comprises, upon rotation of the rotatable part (1B), a first, charging phase for filling the pumping chamber with liquid, and a second, discharging phase for emitting the atomized liquid from the nozzle (6), and is characterized in that between said two phases, a third, resting phase exists during which, despite further rotation, the volume of the pumping chamber remains constant