B medical monitoring circuit
US4627441A · kind A · utility
14Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1985 |
| Grant date | Dec 9, 1986 |
| Priority date | — |
| Expiry date | Nov 6, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A monitoring circuit for use in conjunction with an electrical stimulator and an electrical monitor, such as an EKG monitor, having a differential amplifier input. The circuit functions by equalizing the electrical signals due to the stimulator on both inputs of the electrophysiological monitoring device. Because the stimulator induced signals appear at equal levels on both inputs, the differential amplifier of the monitoring device will cancel them out, allowing display of the underlying physiological signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.