Anesthetic-state determing
US6975901B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 2003 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Sep 6, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/389
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for determining anesthetic state of a subject includes a brain monitor configured to measure at least one parameter of brain activity of the subject and to provide at least one brain monitor output signal indicative of the measured at least one parameter, a stimulator configured to apply a non-surgical stimulus perturbation to the subject and to provide at least one stimulus output signal indicative of timing and intensity of non-surgical stimuli applied to the subject, an analyzer coupled to the brain monitor and the stimulator and configured to receive the at least one brain monitor output signal and the at least one stimulus output signal, to determine a stimulus difference between the non-surgical stimulus intensity in the absence of the perturbation and in the presence of the perturbation, to determine a monitor difference between the a first value of the at least one parameter in the absence of the perturbation and a second value of the at least one parameter in the presence of the perturbation, to make a comparison of the stimulus difference and the monitor difference, and to provide an indication of the comparison, and a display coupled to the analyzer and configur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.