Abstract
The invention relates to a method for monitoring a condition of a patient under anesthesia or sedation, whereupon one, two, three or more signals are acquired, and the signal(s) represent(s) cardiovascular and/or combined electrical biopotential on skull activity of the patient. From said signal or signals are derived or calculated at least two parameter values related to a quantity like waveform amplitude, waveform periodicity, waveform morphology, waveform variability, energy, power, signal complexity and frequency content. A predetermined mathematical index for probability of patient comfort is used, in which function said parameters are variables, and successively changing probability index values of said mathematical index is calculated.
| Original language | English |
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| Patent number | US2005010116 |
| IPC | A61B 5/ 11 A I |
| Priority date | 7/07/03 |
| Publication status | Published - 13 Jan 2005 |
| Publication type | H1 Granted patent |