Medical Devices Infusion Pump Speed Control Iv Infusion Pump Portable Infusion Pump

Quality Control Detection and Maintenance of Medical Infusion Pumps

Medical infusion pump can control the amount and flow rate of infusion, and its performance is affected by the quality and life of the equipment itself, the material of the infusion device, the nature of the liquid medicine and human factors. Regular quality control testing and preventive maintenance of medical infusion pumps can detect and eliminate potential hazards in advance to ensure the normal operation of clinical treatment. This study mainly introduces the quality control testing scheme, result analysis and later maintenance measures of medical infusion pump, which are reported as follows.

1.1 Detection Tools

The test tool is Fluke IDA-5 multi-channel infusion equipment analyzer (Fluke Company), which is mainly used for quality control testing of infusion devices such as medical infusion pumps and injection pumps, and can measure performance indicators such as instantaneous flow, average volume, volume and blocking pressure of infusion devices.

1.2 Testing Water

IDA-5 multi-channel infusion equipment analyzer Manufacturers recommend using distilled or deionized water for quality control testing. In order to prevent damage to test objects and test tools, sterilized water for injection within the validity period is used as test water.

1.3 Test items and methods

1.3.1 Appearance and function check

(1) Whether the shell and accessories of the infusion pump are obviously damaged and cracked, whether the surface of the shell and the base have obvious dirt, if there is dirt, whether it can be removed by cleaning; (2) Whether the pump door is opened and closed normally, whether the pipe clamp is clamped when the pump door is opened, whether there is dirt adhesion in the parts of the peristaltic finger block, blocking detector and bubble detector or whether the dirt can be removed by cleaning; (3) Whether the battery can supply power normally when the power is disconnected, and whether the insulation layer of the power line is damaged; (4) Whether the startup self-test is normal, whether the control button can operate normally, whether the numbers and symbols displayed on the display screen are complete, and whether there is fringe interference

Etc.; (5) The infusion pump is no different when running.

1.3.2 Traffic Detection

Preliminary preparation work. First of all, the infusion set should be correctly installed on the infusion pump, and the infusion pipeline should be installed between the bubble detector and the blockage detector, and placed straight along the guide component and the peristaltic finger block component to avoid bending, flattening and relaxation. The infusion pump is then connected to the IDA-5 multichannel infusion device analyzer to set infusion parameters and perform the following flow test operations.

(1) Connect the test pipe: Connect the liquid transport pipe of the liquid transport pump to the flow test port of the analyzer, and connect the waste liquid drain pipe to the waste liquid discharge port on the right side of the instrument. (2) Flow detection: Set the capacity and flow of the infusion pump, and the flow rate is set to 25 ml/h according to JJF 1259-2018 “Calibration Specification for Medical Injection Pumps and Infusion Pumps” [9]; The channel was pre-perfused, liquid was injected into the measuring channel using the infusion pump rapid discharge function, and air bubbles in the tube were discharged until the irrigation indicator bar on the analyzer display turned blue and remained stable; Start the infusion pump and analyzer, and automatically measure and display real-time data (including average flow rate, measurement time, instantaneous flow rate, etc.) when the analyzer detects water flow. Each infusion pump is tested for more than 3 min. When the flow rate is stable, press the “End” key of the analyzer to end the measurement, and press the “Save” key to save the result and record the average flow rate and instantaneous flow rate. Calculate the relative error of flow.

1.3.3 Blocking alarm pressure detection

Select blocking pressure “Occlusion” on the main interface of the analyzer, enter the blocking pressure test interface, and set the flow rate to 25 ml/h according to JJF 1259-2018 “Calibration Specification for Medical Injection Pump and Infusion Pump” [9]. Start the infusion pump, at which point the analyzer will clog the infusion line to create a clogging pressure. When the blocking pressure reaches the peak, the infusion pump will immediately stop the infusion and issue a blocking alarm. The analyzer will maintain the peak pressure and relieve the pressure, record the peak pressure and the time taken to reach the peak, and calculate the blocking alarm pressure error. After all the above testing items are completed, shut down the infusion pump and analyzer, cut off the power supply, organize the testing pipeline, and inject air into the flow test port with a syringe for drainage until no liquid flows out of the waste liquid discharge port.