Hydroxyl radical producing plasma sterilisation apparatus
US8696997B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2008 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Dec 31, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H2245/36
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Sterilisation apparatus arranged controllably to generate and emit hydroxyl radicals. The apparatus includes an applicator which receives RF or microwave energy, gas and water mist in a hydroxyl radical generating region. The impedance at the hydroxyl radical generating region is controlled to be high to promote creation of an ionisation discharge which in turn generates hydroxyl radicals when water mist is present. The applicator may be a coaxial assembly or waveguide. A dynamic tuning mechanism e.g. integrated in the applicator may control the impedance at the hydroxyl radical generating region. The mist and/or gas and/or energy delivery means may be integrated with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.