Blocking detection apparatus of electronic infusion pump and detection method thereof
A technology for blockage detection and infusion pump, which is applied in measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve problems such as long duration, blockage of infusion tubes, affecting patient treatment, etc., and achieves fast response and high accuracy. Effect
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Embodiment 1
[0012] Such as figure 1 As shown, the clogging detection device of an electronic infusion pump described in this embodiment includes an operational amplifier circuit for detecting current signals or voltage signals inside the motor, and the operational amplifier circuit is connected to the control single-chip microcomputer, and the control single-chip microcomputer It is used to analyze and judge whether the current signal or voltage signal is abnormal. If it is abnormal, it proves that the electronic infusion pump is blocked.
[0013] The operational amplifier circuit is as follows: one end of the motor M1 is connected to the power supply VDD, the other end is connected to the triode Q1, and a diode D1 is connected in parallel at both ends of the motor M1, and the other end port of the triode Q1 is respectively connected to the resistor R5 and the operational amplifier. Connect to port 3, the other end of resistor R5 is grounded; the other end of triode Q1 is connected to res...
Embodiment 2
[0015] The clogging detection method of the electronic infusion pump described in this embodiment detects the current in the motor and uses a single-chip microcomputer to analyze and judge whether the motor is in a clogged running state or a non-clogged running state. The specific method is to detect the current signal in the motor in real time through the operational amplifier circuit, and then analyze it through the single-chip microcomputer. If there is an abnormality, it will be judged as a blockage immediately.
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