Research and Development of Zero-Point Detector of Catheter and Its Clinical Application Effects

Patients in intensive care units often need to use various catheters to monitor their physiological conditions. The caregiver connected the invasive catheter and pressure transmission line to the physiological monitor. For the intensive and continuous monitoring of hemodynamic changes, the measured physiological data is used for medical judgment and treatment. However, in the current clinical situation, nurses do not have consistent horizontal calibration tools or equipment, and the reliability and accuracy of the data obtained by physiological monitors need to be confirmed. Different conduits need to be matched with the fixing seats provided by the original factory. When catheters of different specifications and types are used together, nurses need to use the fine movements of the hand knob to fix the seat to adjust or replace the fixed seat, which caused potential injuries to the hands. Based on creative ideas from clinical needs, an innovative device was developed. Its fixed base template combined the three major features of “adjustable fixed frame”, “laser light source calibrator” and “electric track”. The fixed base was suitable for catheters of different specifications. The laser light source was used to accurately align the pressure converter vent with the zero point marked outside the patient’s body. The electric track was used to move the fixed base up and down during horizontal calibration. Therefore, it was named “Comprehensive Catheter Zero Point Detector”. The product was tested in clinical trials and information on the relevant application effectiveness was collected. The innovatively developed product was used in three intensive care units. Nearly 90% of nurses believed that the “all-around catheter zero-point detector” achieved accurate measurement and reduced operating errors. Not only did it provide patients with better and more precise care, but the satisfaction of nurses operating the equipment was also greatly improved.: This developed device allowed for the convenience of using measurement tools and precise horizontal positioning. Visual errors between operators were reduced and the accuracy of measurement values was effectively improved.