Abstract: Apparatus for the decontamination, disinfection, or sterilization of materials such as medical waste by exposure to ozonized air comprises a generator of ozonized air, an enclosure for the accumulation of ozonized air, a processing enclosure in which the materials to be processed are placed, and a destroyer of residual ozone leaving the processing enclosure. The ozonized air reaches the processing enclosure via the accumulation enclosure. A vacuum pump operating in air is situated downstream from the ozone destroyer for creating a partial vacuum in the processing enclosure. The generator of ozonized air is connected in open circuit with the accumulation enclosure. The apparatus further comprises an injection valve interposed between the accumulation enclosure and the processing enclosure. The injection valve is controlled in such a way as to periodically to trigger the sudden and forceful injection of ozonized air into the processing enclosure as soon as the pressure drops below a certain limit.

Abstract: The disclosed apparatus includes a generator which is controllable by means of a control circuit and produces high frequency pulses of adjustable repetition frequency and duration. It also includes a circuit which produces a d.c. voltage and a pulsating d.c. voltage for ionization, as well as pulses of specific shape and variable repetition frequency for the faradization of the tissue to be treated. A treatment head features a disk-like insulating plate which is metal-coated on one side in an annular pattern and on the other side in a spiral pattern. Various specific circuit elements and blocks are described. The type of apparatus involved is intended for use in therapy, among other possible applications.