Monitor (what is monitor) is a kind of device or system to measure and control the physiological parameters of patients, and can be compared with the known set value. If there is excessive, it can give an alarm. ECG monitor is also one of them. ECG monitor can monitor the physiological parameters of patients at the same time, such as dynamic ECG (generally five lead ECG), respiration, body temperature, blood pressure (noninvasive and invasive), oxygen saturation, pulse rate and so on. It is a practical precision medical instrument (classification of monitor) in hospital. Then, how to troubleshooting and maintenance of ECG monitors? Xiaobian details the maintenance and troubleshooting of ECG monitor by collecting and collating data.

Maintenance of ECG monitor (what is ECG monitor) SSS

ECG monitor can store 400 groups of noninvasive blood pressure data, heart rate, body temperature, respiratory rate and blood oxygen saturation when measuring blood pressure, and can view them in a list; high precision noninvasive blood pressure measurement module has high precision and good repeatability; unique blood oxygen saturation measurement device ensures more accurate measurement of blood oxygen saturation and pulse rate; besides, it has rich alarm upper and lower limit setting functions, etc. Therefore, it is necessary to maintain the ECG monitor every day. For the maintenance of ECG monitor, the following two points should be done:

1. There should be a certain distance between other electrical appliances and the monitor.

2. Wipe the monitor screen with 95% alcohol cotton ball every week.

Troubleshooting of ECG monitor

ECG monitor plays an important role in the whole monitoring process. As the monitor works almost 24 hours continuously, its failure rate is also high. The common failures and troubleshooting methods are introduced as follows.

1. There is no display when starting up Fault phenomena: when the instrument is turned on, there is no display on the screen, and the indicator light is not on; when the external power supply is connected, the low battery voltage alarm, and then the machine will shut down automatically; when the external battery is not connected, the low battery voltage alarm, and then the machine will shut down automatically, even if it is useless to charge the machine.

Inspection method:

① When the instrument is not connected with AC, check whether the 12V voltage is low. The fault alarm indicates that the output voltage detection part of the power board detects that the voltage is low, which may be caused by the fault of the detection part of the power board or the output fault of the power board, or the fault of the back-end load circuit.

② When the battery is installed, this phenomenon indicates that the monitor is working in the battery power supply state, and the battery power is basically used up, and the AC input does not work normally. The possible reasons are: the 220 V power socket itself has no electricity, or the fuse is blown.

③ When there is no external battery, it is judged that the rechargeable battery is broken, or the battery cannot be charged due to the fault of power supply board / charging control board.

Troubleshooting: connect all connection parts reliably, and connect AC power to charge the instrument.

2. ECG has no waveform

Fault phenomenon: connect the lead wire without ECG, and the display screen shows "electrode falling off" or "no signal receiving".

Check method: first check the lead mode, if it is five lead mode but only three lead connection, there must be no waveform.

Secondly, on the premise of confirming the placement position and the quality of the heart electrode, the heart cable is exchanged with other machines to confirm whether the ECG cable is faulty, whether the cable is aging and whether the pin is broken.

Thirdly, if the ECG cable fault is eliminated, the possible reason is that the "ECG signal line" on the parameter socket board is not well contacted, or the ECG board, the connection line of the main control board of the ECG board and the main control board of the ECG board are faulty.

Exclusion method:

(1) Check the external parts of all ECG leads [the three / five extension wires in contact with the human body should be connected to the corresponding three / five contact pins on the ECG plug. If the resistance is infinite, it indicates that the lead wire is open circuit, the lead wire should be replaced].

(2) If the ECG display waveform channel shows "no signal reception", it means that there is a problem in the communication between the ECG measurement module and the host. This prompt still appears after the power is turned off and then turned on. Please contact the supplier.