A NEBULIZER WITH PLUME DETECTION
    171.
    发明公开

    公开(公告)号:EP4197646A1

    公开(公告)日:2023-06-21

    申请号:EP21215761.4

    申请日:2021-12-17

    Abstract: A nebulizer (1, 102) has a liquid reservoir (3, 112) for supply of liquid to be aerosolized to a first surface of a vibratable aperture plate (41) with apertures having a size in the range of 1µm to 10µm. A drive has a piezoelectric annular element on an aperture plate support to cause the aperture plate to vibrate at a drive frequency of 128kHz to cause droplets to separate from a side of the aperture plate opposed to the reservoir. An outlet conduit (6, 114) is for flow of droplets from the aperture plate. A sensor is arranged with an acoustic transducer in contact with the conduit outer surface to pick up an acoustic signal which is representative of a droplet plume in the conduit, and a processor analyses the signal to provide an output representative of a plume. The monitored acoustic signal frequency band is centred around half of the drive frequency because it takes on average more than one aperture plate cycle to separate a droplet.

    MOUNTING OF AN AEROSOL GENERATOR APERTURE PLATE TO A SUPPORT

    公开(公告)号:EP3950141A1

    公开(公告)日:2022-02-09

    申请号:EP21193820.4

    申请日:2018-11-27

    Abstract: An aperture plate (1) is attached at its rim (203) to a support washer (3) by adhesive. Anchor grooves (204) having a zig-zag pattern in plan are machined in the lower surface of the rim (203 of the aperture plate before application of the adhesive. The grooves (204) extend out to the edge of the aperture plate (1). The anchor grooves have a depth in the range of 10µm to 40µm, and a width in the range of 20µm to 150µm, and an angular pitch in the range of 2.5° to 12.5°. Excellent bonding strength is achieved for long term reliable attachment in an environment of high frequency vibration and moisture and chemical corrosion.

    PROTECTION OF APERTURE PLATE DURING AEROSOL GENERATION

    公开(公告)号:EP3932566A1

    公开(公告)日:2022-01-05

    申请号:EP21191599.6

    申请日:2018-08-23

    Abstract: An aerosol delivery system has an aerosol generator with a vibrating aperture plate (10) and an actuator (11, 16, 17, 19), a controller (18, 19). The controller in real time monitors (201) the aerosol generator as it is driven for vibration of the aperture plate, and detects (202) a change in an electrical characteristic in response to a transition from a wet state to a dry state of the aperture plate. It automatically modifies (203, 205, 206), during the transition, operation of the aerosol generator in response to the detected change. The modification includes reducing applied power (203). The controller continues (204) to monitor during the transition, including monitoring the aperture plate for presence of residual liquid on the aperture plate first surface. The controller monitors at a number of drive frequencies and maintains data representing trends in a combination of the electrical characteristic signals at the different frequencies, and identifies a start of a transition if a calculated value rises above a threshold. There is one threshold for triggering a check scan for residual volume and a higher threshold to trigger an immediate shut down.

    A HIGH FLOW NASAL THERAPY SYSTEM
    176.
    发明公开

    公开(公告)号:EP3785754A1

    公开(公告)日:2021-03-03

    申请号:EP20203692.7

    申请日:2015-04-10

    Abstract: A high flow nasal therapy system (1) has a gas supply (2), a nebulizer (12), and a nasal interface (7). There are two branches (11, 10) and a valve (6) linked with the controller, the branches including a first branch (11) for delivery of aerosol and a second branch (10) for delivery of non-aerosolized gas. The controller controls delivery into the branches (11, 10), in which flow is unidirectional in the first and second branches, from the gas supply towards the nasal interface. The first branch (11) includes the nebulizer (12) and a line configured to store a bolus of aerosol during flow through the second branch (10). The valve (6) comprises a Y-junction between the gas inlet on one side and the branches on the other side.

    AN AEROSOL DELIVERY SYSTEM WITH HUMIDIFICATION
    179.
    发明公开
    AN AEROSOL DELIVERY SYSTEM WITH HUMIDIFICATION 审中-公开
    AEROSOLABGABESYSTEM MIT BEFEUCHTUNG

    公开(公告)号:EP3154612A1

    公开(公告)日:2017-04-19

    申请号:EP15726655.2

    申请日:2015-06-10

    Inventor: POWER, Patrick

    Abstract: An aerosol delivery system (1) has a nebulizer (2) and a humidifier (7) providing a gas flow to the nebulizer. A controller varies humidity level of the gas flow to the nebulizer (2) so that if the nebulizer is not operating it has about 100% humidity and it is operating the value is less to allow for the humidification effect of the nebulizer. The control may be achieved by dynamically varying proportions of flow through a dry branch (10, 11) and a humidification branch (8, 7).

    Abstract translation: 气雾剂输送系统(1)具有喷雾器(2)和加湿器(7),其向喷雾器提供气流。 控制器改变到雾化器(2)的气流的湿度水平,使得如果喷雾器不工作,则其具有约100%的湿度,并且其运行的值较小以允许喷雾器的加湿效果。 控制可以通过动态变化通过干燥分支(10,11)和加湿分支(8,7)的流量的比例来实现。

    A method for producing an aperture plate
    180.
    发明公开
    A method for producing an aperture plate 有权
    VERFAHREN ZUR HERSTELLUNG EINER LOCHPLATTE

    公开(公告)号:EP2947181A1

    公开(公告)日:2015-11-25

    申请号:EP14169722.7

    申请日:2014-05-23

    Abstract: An aperture plate is manufactured by plating metal around a mask of resist columns (2) having a desired size, pitch, and profile, which yields a wafer about 60µm thickness. This is approximately the full desired target aperture plate thickness. The plating is continued so that the metal (3) overlies the top surfaces of the columns until the desired apertures (4) are achieved. This needs only one masking/plating cycle to achieve the desired plate thickness. Also, the plate has passageways (24) formed beneath the apertures (32), formed as an integral part of the method, by mask material removal. These are suitable for entrainment of aerosolized droplets exiting the apertures (32).

    Abstract translation: 通过在具有期望的尺寸,间距和轮廓的抗蚀剂柱(2)的掩模上镀覆金属来制造孔板,其产生厚度约为60μm的晶片。 这大约是完全期望的目标孔板厚度。 继续进行电镀,使得金属(3)覆盖在柱的顶表面上,直到达到所需的孔(4)。 这只需要一个掩模/电镀周期来实现所需的板厚度。 此外,板具有形成在孔(32)下方的通道(24),其形成为该方法的整体部分,通过掩模材料去除。 这些适合于夹带离开孔(32)的雾化液滴。

Patent Agency Ranking