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US 10,471,165 B2Granted
Sterilization or disinfection of workpieces, including medical and dental instruments
AssigneeChemtreat, Inc.
InventorsJohn Richardson, Kevin White, Benjamin Niemaseck, Douglas McIlwaine, James Wilkins, Rob Bedinger, Yatao Liu, James Liang-Hiong Chia, Stephen C. Fanning, Tim Taylor
Life of this patent
Estimating the term…
Abstract
Devices and methods for sterilizing and/or disinfecting workpieces, such as medical and dental instruments. The device can include a chamber that receives the workpieces and can be sealed. The chamber is filled with chlorine dioxide gas to a threshold concentration and for a time sufficient to sterilize and/or disinfect the workpieces.
Claims15
A device for sterilizing or disinfecting a workpiece, the device comprising:
- a chamber defining an interior treatment space, the chamber being configured to be able to receive the workpiece when the chamber is opened and to be sealed when the chamber is closed;
- a chlorine dioxide gas source that is configured to supply chlorine dioxide gas to the chamber when the chamber is closed, the chlorine dioxide gas source being further configured to generate the chlorine dioxide gas by contacting a dry chlorite reactant media with an ozone-containing gas,
- wherein the device is configured to fill the interior treatment space with the chlorine dioxide gas when the chamber is closed at least until the chlorine dioxide concentration in the internal treatment space reaches a predetermined threshold concentration.
Dependencies are inferred from the claim text.