Title :
Design and calibration of a high-frequency oscillatory ventilator
Author :
Simon, Brett A. ; Mitzner, Wayne
Author_Institution :
Dept. of Biomed. Eng., Johns Hopkins Med. Inst., Baltimore, MD, USA
Abstract :
The essential features of an ideal high-frequency ventilation (HFV) system are described, including wide frequency range, control of tidal volume and mean airway pressure, minimal dead space, and high effective internal impedance. The design and performance of a high-frequency oscillatory ventilation system that approaches these requirements are described. The ventilator utilizes a linear motor regulated by a closed-loop controller and driving a novel frictionless double-diaphragm piston pump. The ventilator performance is tested using the impedance model of J.G. Venegas (1986).
Keywords :
calibration; orthotics; pneumodynamics; HF oscillatory ventilators; closed-loop controller; effective internal impedance; frictionless double-diaphragm piston pump; impedance model; linear motor; mean airway pressure; minimal dead space; tidal volume control; ventilator performance; Calibration; Communication system control; Frequency; Impedance; Pistons; Pressure control; Servomotors; Servosystems; Valves; Ventilation; Calibration; Equipment Design; High-Frequency Ventilation; Ventilators, Mechanical;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
