Development of High Frequency Oscillatory Ventilation Motor Using Linear Oscillatory Actuator

Abstract

　Neonates with chronic lung disease (CLD) have long-term respiratory management, and high frequency oscillatory ventilation (HFOV) has been sought to prevent CLD. A voice coil motor is used in clinical HFOV ventilators, and this study aims to develop a HFOV motor using a linear oscillatory actuator (LOA). The LOA is an actuator with features such as a simple system and improved reliability, because the structure is very simple and the reciprocating motion of the piston part, which is the basic operation of the HFOV ventilator, can be obtained without a conversion mechanism. Focusing on LOA with a simple structure as an HFOV actuator, we have developed an actuator for an HFOV ventilator that is compact and has a high thrust.