Omron Tateisi Electronics Co.

Bohsei Enterprise

Hideharu Nakai

Isao Kai

Toshiyuki Kobayashi

Hirohito Yamamoto

Yoshinori Yonemori

A nebulization control system for an ultrasonic nebulizer comprising a variable pulse oscillating circuit, an ultrasonic vibrating circuit and an ultrasonic vibrator is described. The ultrasonic vibrator is caused to vibrate alternatingly between a high level which is sufficient to nebulize a fluid and a low level which is insufficient to nebulize the same. The ratio of duration of the high level to the low level and/or the amplitude of vibration at the high level is variable. This arrangement permits a precise control of nebulization quantity and assists in the production of a fine, uniform mist of fluid.

Nebulization control system for a piezoelectric ultrasonic nebulizer

Disclosed is a dripping fluid level detector comprising a pair of electrodes oppositely disposed around a drip chamber of a supply passage of dripping medical fluid and a detecting circuit which detects the remaining amount of medical fluid according to changes in the electrostatic capacity caused between said pair of electrodes.

Growing community of inventors

Nagaokakyo, Japan

Hideharu Nakai