发明名称 |
NEBULIZER VIBRATING APERTURE PLATE DRIVE FREQUENCY CONTROL AND MONITORING |
摘要 |
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. |
申请公布号 |
EP3024590(A1) |
申请公布日期 |
2016.06.01 |
申请号 |
EP20140725733 |
申请日期 |
2014.05.23 |
申请人 |
STAMFORD DEVICES LIMITED |
发明人 |
GREHAN, JOSEPH;SMITH, NIALL |
分类号 |
B05B17/06;A61M11/00;B05B12/00;B05B12/08;B06B1/02 |
主分类号 |
B05B17/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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