Development of Portable Digital Intelligent Thoracic Drainage System
BIAN Mei1, SHI Wen2, YANG Xin1
1. College of Nursing, Shaanxi University of Chinese Medicine, Xianyang Shaanxi 712046, China;
2. Department of Anesthesiology, The Second Affiliated Hospital of Air Force Medical University, Xi’an Shaanxi 710038, China
Abstract：Objective To develop a portable digital intelligent thoracic drainage system. Methods The portable digital intelligent
thoracic drainage system was composed of three parts: sensors and data acquisition, signal processing and control, and humanmachine
interaction software system. Ultrasonic sensors and synchronous filtering methods were used to accurately measure the
drainage situation in real time. Signal processing was carried out using high-speed field programmable gate array and digital signal
processor. The feedback, playback, and warning were promptly transmitted to the human-machine interaction system to monitor the
patient’s drainage situation. Results The measurement results of the portable digital intelligent thoracic drainage system showed
that the device was a low negative pressure device, with a drainage bottle volume of 300 mL and leakage detection alarm range of
less than 0.15 kPa when the pressure dropped within 10 seconds; the negative pressure suction range was -26-0 kPa, the error
range was ±0.1 kPa, and the range of flow monitoring accuracy was 1%-4%. The continuous free air flow rate should
be less than 20 L/min, and the maximum leakage within 10 seconds should not exceed 3 bubbles; within one meter distance, the
noise was less than 50 dB, and the electromagnetic compatibility was good, which could be effectively operated. Conclusion The
portable digital intelligent thoracic drainage system has the characteristics of high portability, precise and intelligent measurement
data, automatic alarm, and friendly human-machine interaction. It can detect patients’ drainage amount and drainage speed, help
medical staff objectively evaluate patients’ conditions and extubation timing, reduce the incidence of complications, and also realize
the autonomous control of the product to reduce the economic burden of patients.
边梅1，师文2，杨鑫1. 便携式数字智能胸腔引流系统的开发与研制[J]. 中国医疗设备, 2023, 38(6): 43-49.
BIAN Mei1, SHI Wen2, YANG Xin1. Development of Portable Digital Intelligent Thoracic Drainage System. China Medical Devices, 2023, 38(6): 43-49.
