Closed-loop expectoration method and system for automatically titrating expectoration pressure
A technology for automatic titration and expectoration of sputum, which is applied in the fields of drug devices, medical equipment, and other medical devices to achieve the effects of evaluability, reduction of titration workload, and intuitive control.
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[0042] The embodiments of the present invention are described below with reference to the drawings, in which the same components are denoted by the same reference numerals. In the case of no conflict, the following embodiments and technical features in the embodiments can be combined with each other.
[0043] figure 1 It expresses the control principle of the method and system of the present invention.
[0044] The starting point of the present invention is based on the basic mechanics principle of secretion movement: in expectoration, the average cough flow in the negative pressure phase and the cough volume in the negative pressure phase must reach a certain set value in order to effectively remove the airway Cough up secretions. The movement of secretions is produced by the thrust of the airflow acting on it. The greater the thrust, the faster the acceleration of the secretions; but the duration of the thrust acting on the secretions is also critical. The longer the thrust, the...
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