Medical apparatus for generating an ionised gas plasma flame
US6225593A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Dec 13, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B18/042
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus (10) for generating an ionized gas plasma flame for use in medicine, particularly for cauterization, is described. The apparatus (10) has an electrical power source (12) providing an alternating voltage at a fixed frequency and a resonant circuit (16, 26) resonant at the fixed frequency connected to the electrical power source (12). A single insulated electrical conductor (30) is connected to the output (18) of the reactive circuit (16) and terminates at a nozzle (36). Conduit means (32) surrounds the electrical conductor (30) along its length and defines a gas-flow channel for supplying substantially inert gas to the nozzle (36), where the gas-flow emerges as a plasma.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.