METHOD AND DEVICE FOR ELECTROENCEPHALOGRAM BASED ASSESSMENT OF ANESTHETIC STATE DURING ANESTHESIA OR SEDATION

摘要

A method and device to monitor the anesthetic state of animal patients undergoing general anesthesia are provided. Electroencephalogram derived parameters are commonly used tools for anesthetic depth monitoring in human patients. However, there are no objective measures of anesthetic depth monitoring available for veterinary use. Furthermore, the parameters available for humans have showed inadequacy in animals. A robust invention which is adaptable to the species anesthetized and to the anesthetic drugs used is presented. This invention transforms (5, 6, 7, 8) the animal's EEG (4) into an easy to interpret parameter (10) that reflects the anesthetic depth. This parameter undergoes continuous optimization according to the anesthesiologists' input (9) regarding the animal anesthetic state, species and anesthetic protocol. This function performs fine tuning resulting in a parameter which correlates with anesthetic state, optimized for each species and anesthetic protocol, helping the anesthesiologist to adjust the drug doses and to automatically control the administration of anesthesia.