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Pressure control device for the pressure cuff of a blood pressure monitoring device for the automatic blood pressure measurement
Pressure control device for the pressure cuff of a blood pressure monitoring device for the automatic blood pressure measurement
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机译:用于自动血压测量的血压监测装置的压力袖带的压力控制装置
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摘要
The invention relates to a pressure control system and apparatus for the cuff of an automatic blood pressure meter. Pressure reduction is adapted to be effected by using at least two constrictions (3) having a constant constriction, the selection and combination of such constrictions being performed by digitally controlled magnetic valves (4). Such magnetic valves are controlled by a microprocessor (6) depending on a measuring value provided by a sensor (7) for measuring the cuff pressure transition rate so as to obtain a desired, approximately linear rate of pressure reduction. The constrictors (3) comprise thin flexible tubes. The system is capable of compensating automatically for the changes caused in the desired volume air flow by the cuff size and tightness, variations in the circumference of a person's arm, the heartbeat density and pressure range.
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