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    Nebulizer vibrating aperture plate drive frequency control and monitoring
    2.
    发明授权
    Nebulizer vibrating aperture plate drive frequency control and monitoring 有权

    公开(公告)号：US10449307B2

    公开(公告)日：2019-10-22

    申请号：US15933082

    申请日：2018-03-22

    Applicant: Stamford Devices Limited

    Inventor： Joseph Grehan ,  Niall Smith

    IPC: A61M11/00 ,  B05B17/06 ,  G01N29/22 ,  G01N29/42 ,  G06F19/00 ,  B05B17/00 ,  B06B1/02 ,  G16H20/13 ,  B05B15/14 ,  B05B12/00 ,  B05B12/08

    Abstract: A nebulizer has an aperture plate, a mounting, an actuator, and an aperture plate drive circuit (2-4). A controller measures an electrical drive parameter at each of a plurality of measuring points, each measuring point having a drive frequency; and based on the values of the parameter at the measuring points makes a determination of optimum drive frequency and also an end-of-dose prediction. The controller performs a short scan at regular sub-second intervals at which drive current is measured at two measuring points with different drive frequencies. According to drive parameter measurements at these points the controller determines if a full scan sweeping across a larger number of measuring points should be performed. The full scan provides the optimum drive frequency for the device and also an end of dose indication.

    NEBULIZER VIBRATING APERTURE PLATE DRIVE FREQUENCY CONTROL AND MONITORING
    3.
    发明申请
    NEBULIZER VIBRATING APERTURE PLATE DRIVE FREQUENCY CONTROL AND MONITORING 有权

    公开(公告)号：US20210308387A1

    公开(公告)日：2021-10-07

    申请号：US17350562

    申请日：2021-06-17

    Applicant: Stamford Devices Limited

    Inventor： Joseph GREHAN ,  Niall Smith

    IPC: A61M11/00 ,  G01N29/22 ,  G01N29/42 ,  B05B17/00 ,  B05B17/06 ,  B06B1/02 ,  B05B15/14 ,  G16H20/10 ,  G16H20/13

    Abstract: A nebulizer has an aperture plate, a mounting, an actuator, and an aperture plate drive circuit (2-4). A controller measures an electrical drive parameter at each of a plurality of measuring points, each measuring point having a drive frequency; and based on the values of the parameter at the measuring points makes a determination of optimum drive frequency and also an end-of-dose prediction. The controller performs a short scan at regular sub-second intervals at which drive current is measured at two measuring points with different drive frequencies. According to drive parameter measurements at these points the controller determines if a full scan sweeping across a larger number of measuring points should be performed. The full scan provides the optimum drive frequency for the device and also an end of dose indication.

    Nebulizer vibrating aperture plate drive frequency control and monitoring
    6.
    发明授权
    Nebulizer vibrating aperture plate drive frequency control and monitoring 有权

    公开(公告)号：US11065399B2

    公开(公告)日：2021-07-20

    申请号：US16572298

    申请日：2019-09-16

    Applicant: Stamford Devices Limited

    Inventor： Joseph Grehan ,  Niall Smith

    IPC: A61M11/00 ,  B05B17/06 ,  G01N29/22 ,  G01N29/42 ,  B05B17/00 ,  B06B1/02 ,  B05B15/14 ,  G16H20/10 ,  G16H20/13 ,  B05B12/00 ,  B05B12/08

    Abstract: A nebulizer has an aperture plate, a mounting, an actuator, and an aperture plate drive circuit (2-4). A controller measures an electrical drive parameter at each of a plurality of measuring points, each measuring point having a drive frequency; and based on the values of the parameter at the measuring points makes a determination of optimum drive frequency and also an end-of-dose prediction. The controller performs a short scan at regular sub-second intervals at which drive current is measured at two measuring points with different drive frequencies. According to drive parameter measurements at these points the controller determines if a full scan sweeping across a larger number of measuring points should be performed. The full scan provides the optimum drive frequency for the device and also an end of dose indication.

    END-OF-DOSE DETECTION IN NEBULIZERS
    7.
    发明申请
    END-OF-DOSE DETECTION IN NEBULIZERS 有权

    公开(公告)号：US20210187209A1

    公开(公告)日：2021-06-24

    申请号：US17194369

    申请日：2021-03-08

    Applicant: Stamford Devices Limited

    Inventor： Joseph Grehan ,  Michael Casey ,  Shaun Porter ,  Niall Smith

    IPC: A61M11/00 ,  B06B1/02 ,  B05B15/14 ,  B05B17/06 ,  B05B17/00

    Abstract: A digital processor of a nebulizer controller controls and monitors drive current (I) applied to an aperture plate. The drive current is detected as a series of discrete values at each of multiple measuring points, each having a particular drive frequency The processor in real time calculates a slope or rate of change of drive current with frequency and additionally determines a minimum value for drive current leading up to the peak value. The processor uses both the value of the minimum drive current during the scan and also the maximum slope value to achieve reliable prediction of end of dose, when the aperture plate becomes dry.

    Nebulizer aperture plate drive frequency control and monitoring
    8.
    发明授权
    Nebulizer aperture plate drive frequency control and monitoring 有权

    公开(公告)号：US12186477B2

    公开(公告)日：2025-01-07

    申请号：US18304854

    申请日：2023-04-21

    Applicant: Stamford Devices Limited

    Inventor： Joseph Grehan ,  Niall Smith

    IPC: A61M11/00 ,  B05B15/14 ,  B05B17/00 ,  B05B17/06 ,  B06B1/02 ,  G01N29/22 ,  G01N29/42 ,  G16H20/10 ,  G16H20/13 ,  B05B12/00 ,  B05B12/08

    Abstract: A nebulizer has an aperture plate, a mounting, an actuator, and an aperture plate drive circuit (2-4). A controller measures an electrical drive parameter at each of a plurality of measuring points, each measuring point having a drive frequency; and based on the values of the parameter at the measuring points makes a determination of optimum drive frequency and also an end-of-dose prediction. The controller performs a short scan at regular sub-second intervals at which drive current is measured at two measuring points with different drive frequencies. According to drive parameter measurements at these points the controller determines if a full scan sweeping across a larger number of measuring points should be performed. The full scan provides the optimum drive frequency for the device and also an end of dose indication.

    End-of-dose detection in nebulizers
    10.
    发明授权
    End-of-dose detection in nebulizers 有权

    公开(公告)号：US10967138B2

    公开(公告)日：2021-04-06

    申请号：US15762387

    申请日：2016-09-22

    Applicant: Stamford Devices Limited

    Inventor： Joseph Grehan ,  Michael Casey ,  Shaun Porter ,  Niall Smith

    IPC: A61M11/00 ,  B06B1/02 ,  B05B15/14 ,  B05B17/06 ,  B05B17/00 ,  B05B12/08

    Abstract: A digital processor of a nebulizer controller controls and monitors drive current (I) applied to an aperture plate. The drive current is detected as a series of discrete values at each of multiple measuring points, each having a particular drive frequency The processor in real time calculates a slope or rate of change of drive current with frequency and additionally determines a minimum value for drive current leading up to the peak value. The processor uses both the value of the minimum drive current during the scan and also the maximum slope value to achieve reliable prediction of end of dose, when the aperture plate becomes dry.

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