Microwave plasma sterilisation system and applicators therefor
US9675716B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2014 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | May 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05H2242/26
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A sterilization system having a controllable non-ionizing microwave radiation source for providing microwave energy for combining with a gas to produce atmospheric low temperature plasma for sterilizing biological tissue surfaces or the like. A plasma generating region may be contained in a hand held plasma applicator. The system may include an impedance adjustor e.g. integrated in the plasma applicator arranged to set a plasma strike condition and plasma sustain condition. The gas and microwave energy may be transported to a plasma generating region along an integrated cable assembly. The integrated cable assembly may provide a two way gas flow arrangement to permit residual gas to be removed from the surface. Invasive surface plasma treatment is therefore possible. The plasma applicator may have multiple plasma emitters to produce a line or blanket of plasma.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.