System and method for return electrode monitoring
US8298225B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | May 13, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/00875
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A detection circuit for return electrode monitoring is disclosed. The detection circuit includes a transformer operatively coupled to a pair of split electrode pads, wherein the transformer is configured to transceive a return electrode sense signal. The detection circuit also includes a first switch coupled to the transformer and a neutrally-referenced second switch, wherein the first switch and the second switch are disposed on a single die. The detection circuit further includes an operational amplifier coupled to the first switch and the neutrally-referenced second switch. The operational amplifier is configured to subtract a noise signal from the return electrode sense signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.