Development of New Washing Method "Vacuum Boiling Washer"

Abstract

It is tough subject to wash medical instruments with fine structure or tubular structure, though some exclusive accessories for WD and ultrasound washer are available now. This time, we would like to report newly developed washing method named as Vacuum Boiling Washer . The concept of this washer is application of physical energy of boiling water. This new washing machine has air sealed washing bath and it can reduce pressure to 10 kPa (0.1 bar). Water comes to boil at less than 50 degrees Celsius by reducing pressure to 10 kPa. And bumping can be generated by inducting air injection into the decompressed water. The strong physical energy of boiling water and bumping water generate effective washing ability. Furthermore, iteration of reducing pressure and revert back to the normal pressure makes strong circulating current of the washing agent into the fine structure or tubular structure of the instruments. We ve attained significantly good results of the washing experiments with some models of fine structure and tubular structure.