Abstract
Clinical analyzers which deal with many liquid samples use reusable metal nozzles to suck and dispense samples. These nozzles are cleaned manually every periodic maintenance. To automatize the cleaning of these nozzles, a small ultrasonic cleaner was developed. The ultrasonic cleaner has a L-shape head with a hole in its extremity which is soaked in the cleaning chamber. The nozzle is cleaned by first to dip the tip of the nozzle into the hole, and by then oscillating the L-shape head enough to cavitation occurred around the tip of nozzle. This report presents cleaning performance of the developed small ultrasonic cleaner, as well as the features of the ultrasonic oscillator with L-shape head and the cleaning chamber.
