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US 4,308,229 AGranted
Sterilization apparatus and method
OwnerJ. Kenneth Voitinventor
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Abstract
A sterilization apparatus and method according to which articles are sterilized by subjecting them to an ultrasonic/heat activated disinfectant liquid in the presence of heat and ultrasonic vibrations. The preferred disinfectant liquid includes a quaternary ammonium compound and a surfactant at a pH of 12. Treatment according to the invention results in the killing of vegetated bacteria, fungi, viruses and spores.
Claims5
A method of sterilizing an article comprising the concurrent steps of:
- immersing said article in an ultrasonic/heat activated liquid consisting essentially of a quaternary ammonium compound, a polyethoxyethanol and isopropanol, said liquid having a pH in a range from 8.5 to 14;
- heating said liquid to a temperature of 60.degree.-80.degree. C.;
- and
- propagating ultrasound through said liquid.
1 more element
Dependencies are inferred from the claim text.