Common Faults and Troubleshooting Methods of Infusion Pumps

The infusion pump can control the infusion speed. If the infusion pump fails, it will cause the flow rate to be too fast or too slow. This will affect the patient's treatment progress, and even affect the patient's body. The followings are common faults and troubleshooting methods of infusion pumps.

This means that when there are no bubbles in the tubing of the infusion set, the bubble light is on and the buzzer sounds.

(1) Check whether the power switch is turned on before installing the card infusion set.

(2) Check whether the card is correctly installed in the infusion set. If it is not correct, reinstall the card in the infusion set.

(3) Check whether the bubble probe is clean. If it is not, wipe it with alcohol cotton.

(4) After entering the high-level debugging program, press: "Start/Stop button" to watch the bubble value change when the bubble light is on, and install the infusion pump filled with liquid and exhausted air (it is immediately after the pump door is opened). The starting value is 0-20, and the ending value is above 700 after closing the pump door).

If the value changes and the value is below 350: Use the tool for detecting the bubble probe gap to check the quality of the bubble probe gap and the infusion set. When the bubble probe gap is not within the normal range (2.35mm-2.45mm), the gap should be readjusted.

The bubble probe gap is within the normal range (2.35mm---2.45mm). Change the position of the infusion set and observe again. If the value can reach 700 or more, it is recommended to replace the infusion set (new infusion set or another brand of infusion set). Otherwise, rotate the receiving end probe to adjust the position of the bubble probe or replace the bubble probe.

If there is no change in the value, check the bubble probe with tooling (the production of tooling: a 25cm-long wire can be welded to a good bubble probe, and a two-core plug is connected to the other end).

The method is as follows: Connect the plug on the tooling to the socket on the system board, and judge whether there is a problem with the receiving end of the transmitting end. For example, when plugged into the receiving end, use the probe on the tooling to touch the probe on the transmitting end (the probe on the door) and watch the bubble value change. 

If there is no change, check whether the cable of the bubble probe at the transmitting end is fastened and whether the cable is short-circuited or disconnected. If there is no short circuit or open circuit, replace the bubble probe at the transmitting end, otherwise check the bubble probe at the receiving end.

This means that the external power indicator does not light up after the AC power is plugged in, and the battery indicator lights up and the buzzer sounds after the machine has been working for a period of time.

(1) Check whether the power socket has electricity and if the power socket is out of power, supply power to the power socket.

(2) Check whether the power cord is in good contact with the socket. If the power cord is not in contact with the socket, connect the socket to the power cord.

(3) Check whether the fuse in the socket at the back of the machine is in good condition. If the fuse is intact, check whether the power switch is intact and whether the power switch is working. If the power switch is not good, replace the power switch.

This means that the fault indicator is on and the buzzer sounds.

(1) Check whether the card is installed correctly in the infusion set. If it is not correct, reinstall the infusion set.

(2) Check whether the infusion set used for calibration accuracy is used.

(3) Observe whether there are traces of liquid medicine in the pump body.

(4) Enter the debugging program to see the operation of the pump body. The pump does not respond: check the power supply and timing belt,

(5) Observe the voltage change of the photoelectric switch on the drive board (the high level should be greater than 4.5V, and the low level should be less than 0.2V), and the drive board should not be changed.

(6) Check whether you can enter the debugging program. If you cannot enter the debugging program, check the cable, and observe whether the main control chip and driver chip are inserted in place and whether the software version is compatible.

(7) Enter the debugging program to see if the accuracy value is normal, if not normal, adjust to 500

(8) Check whether the light barrier is loose or falling off.

(9) Open the door of the infusion pump in the shutdown state, and feel the resistance by turning the pump body by hand. If the resistance is small, check whether the pump pressure is appropriate, and re-adjust the pressure if it is inappropriate. If the resistance is large, change the pump body and re-adjust.

This means that the given volume of liquid medicine has not been delivered in the calculated time.

(1) Check whether the pump pressure is normal, and re-calibrate.

(2) Check whether the card is installed correctly in the infusion set. If it is not correct, reinstall the card.

(3) Check whether the infusion set is selected correctly. If not, select the correct gear.

(4) Check whether the infusion set used is consistent with the brand and batch number of the infusion set used in the calibration accuracy. If it is inconsistent, replace the infusion set with the same brand and batch number as the calibration accuracy.

This means that the number of drops in the drip pot of the infusion set does not match the number of drops set by the infusion pump.

(1) Check whether the pump pressure is normal.

(2) Check whether the parameter setting of "Drops/ml" is correct.

(3) Check whether the flow rate is accurate.

(4) Check whether the actual number of drops per milliliter of the infusion set is 20 drops.

This means that in the normal infusion state, there is no alarm after the pipeline is blocked or the block alarm occurs when there is no blockage.

(1) Check whether the blocking alarm sensitivity value is set correctly.

(2) Check blocking sensors and cables: you can judge the changes in the digital quantity after A/D conversion in the debugging program. Enter the debugging program, press Start/Stop to make the blocking light illuminate. Open the pump door and press the obstruction sensor to see the value change. If the value changes and can reach more than 700, it means that the Hall device is good.

This means that the p2 infusion pump turns on the power switch when the external power supply is turned on, the charging indicator, the external power indicator, and the infusion set selection indicator are all on, and when the cumulative amount of infusion is displayed as 0, the infusion flow rate and infusion volume are set after pressing the start button, the infusion pump does not operate normally.

(1) Check whether the pump door of the infusion pump is closed, if not, close the pump door.

(2) Check whether the infusion set selection light is flashing in the power-on state, and check if it is flashing.

(3) Check whether the ambient temperature or the temperature of the environment where the infusion pump is placed is higher than 18°C. If the temperature is lower than 18°C, please use the infusion pump in an environment higher than 18°C.

If you want to know more about the infusion pump after reading the above, please contact BQ+ for professional advice and solutions.

As one of the world's leading manufacturers of medical products, BQ+ has more than 450 types of medical parts for you to choose from and also provides R&D customized services for customers with special requirements. We do our utmost to pay attention to the health of patients, have established a strict quality inspection system, and are committed to providing customers with safe and high-quality products. Our complete management team can provide customers with thoughtful one-stop service. If you want to buy our high-quality infusion pumps, please contact us immediately!