Monitoring of a patient's depth of narcosis

摘要

A novel method to establish the depth of narcosis, in a patient, a pressure sensor (7) is located near the airway, and it sends pressure signals resulting from muscular activity. To establish the depth of narcosis, in a patient, a pressure sensor (7) is located near the airway. The pressure sensor (7) sends pressure signals resulting from muscular activity, with a connected evaluation unit to recognize the signal changes from the sensor relating to detected pressure variations. The evaluation unit generates signals to display the activity. During the measurements of the muscular activity at the airway, a free flow path is maintained through the breathing tube (2) for the inhalation gas. The muscular activity is stimulated during the process.