A corresponding calibration method was proposed for the key performance parameters of the endoscopic liquid expansion pump,such as the pressure indication error,the flow rate indication error and the flow rate repeatability.4 different brands of endoscopic liquid expansion pumps in clinical use in the hospital were selected for calibration,and the feasibility of the calibration method was evaluated.In the pressure and flow range of the endoscope liquid expansion pump,3 calibration points of high,medium and low were selected,and each flow point was calibrated 3 times.The calibration results showed that the maximum error of pressure indication was 4.3%,the maximum error of flow indication was 9.3%,and the maximum repeatability of flow indication value was 0.8%,all of which met the technical requirements for the maximum allowable error of"Medical Endoscopes.Endoscope Functional Supply Units.Irrigation Pump"(YY/T 0864-2011)and"Calibration Specification for Syringe Pumps and Infusion Pumps"(JJF 1259-2018).The calibration method for endoscopic liquid expansion pump can improve the metrological traceability system of this type of equipment,ensure the accuracy and reliability of equipment values,improve product quality,and ensure medical safety.
关键词
内窥镜液体膨腔泵/校准/示值误差/示值重复性
Key words
Endoscopic liquid expansion pump/Calibration/Indication error/Repeatability of indication
维普
万方数据