Technical Name A High Frequency Ventilator and Electrical Impedance Tomography for Respiratory Treatment
Project Operator National Chiao Tung University
Project Host 廖育德
Summary The high-frequency jet ventilator uses the solenoid valve and feedback techniques to control the operational parameters of the ventilator. The proposed dual-mode control mechanism allows dynamic adjustment of the tidal volume, pressure, and duration of ventilation simultaneously. The system has been verified in animal experiments and demonstrated a significant improvement in the gas exchange efficiency. Besides, the bioelectrical impedance measurement can provide real-time and accurate regional information of the lungs, which helps to monitor the patient’s condition during respiratory treatment. This work also adopts wireless communication and remote-control technology to reduce the risk of infection of medical professionals.
Technical Film
Scientific Breakthrough Compared with traditional positive pressure ventilator, the high-frequency ventilator can achieve better gas exchange rates in specific lung conditions without pressure-caused damages to the lungs. Due to the small tidal volume and the treatment method without intubation, the high-frequency ventilator system is more suitable for portable treatment and emergent conditions. This technology provides real-time and accurate regional information in the lungs through bio-impedance measurement that helps to adjust parameters of the ventilator to achieve optimal ventilation efficiency.
Industrial Applicability More than 50-million people rely on a ventilator for sustaining their lives. About 10% of the patients suffer from lung damages or complications due to operation mistakes in the treatment. High-frequency jet ventilator has advantages in (1) small tidal volume, (2) low intrathoracic pressure, (3) small size, and (4) medium alveolar expansion. The low-tidal volume and pressure can reduce the chances of complications during respiratory treatment. Electrical impedance tomography provides a noninvasive and radiation-free method to observe lung contraction information in real-time. Besides, this method can monitor food spoilage, noninvasive tumor detection, mechanical structure detection, and plant health detection.
Keyword Portable high frequency ventilator Dual mode feedback control method Electrical impedance tomography Body impedance measurement Lung imaging Healthcare
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