Patent ID: 6824751
Filing Date: 2004-11-30
Classification: A61B,A61L,B08B

Abstract:
Apparatus for cleaning and sterilizing the inside of a treatment chamber, comprising:a supply of sterilizing liquid for this treatment chamber; and, means for inducing, within this sterilizing liquid, variations in pressure, amplitude and frequency, and slope of said variations, said means being adapted to generate cavitation within this liquid and comprising a liquid column arranged between said treatment chamber and a switching member with which the treatment chamber can be connected in a cyclic way to a negative pressure, the value of the latter being in relation to said amplitude or respectively to the atmospheric pressure, wherein a main conduit connects said switching member to said treatment chamber, two conduits connect said main conduit to the atmospheric pressure and to said negative pressure, respectively, said switching member comprising connecting passages between said conduits and said main conduit and being movable between at least two positions, one in which one of said connecting passages brings the main conduit into communication with the atmosphere, the other in which the other of said passages brings the main conduit into communication with said negative pressure, and drive means for displacing said switching member from one position to the other and vice versa.