Electrosurgery apparatus
US5540682A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Jan 13, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/0019
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Electrosurgery apparatus has a processor that generates a data stream output representing the characteristics of the electrosurgery pulses to be generated. The data stream output comprises digitally-represented values indicative respectively of the width of each pulse, the duration of a first period during which pulses are to be generated, the duration of a second period during which pulses are not to be generated, the duration of a third period during which pulses are to be generated and the duration of a fourth period during which pulses are not to be generated. The data stream also includes digital instructions as to whether or not the electrosurgery output is to be cut only and whether it is to include spray coagulation. Three switch control units receive the data stream and provide outputs to three switching circuits, which provide two monopolar and one bipolar output. Each switching circuit includes a transformer connected to receive the outputs from the switch control units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.