| Sign In to gain access to subscriptions and/or personal tools. |
Clinical implementation of advanced control in anaesthesiaDepartment of Automatic Control and Systems Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, UK, D.Linkens{at}sheffield.ac.uk
Department of Automatic Control and Systems Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, UK
Department of Anaesthetics, Royal Hallamshire Hospital, Glossop Road, Sheffield S10 2JF, UK A multi-sensor fusion system for monitoring and control of depth of anaesthesia in the operating theatre is described. Two types of anaesthesia measures are considered, the first being based on auditory evoked responses, while the second measure is based on cardiovascular system signals. The first measure is based on analysis of the signal using wavelets and a neuro-fuzzy system, while the second measure is based on analysis of the measurements using a rule-based fuzzy logic system. The two measures are combined to give a final level of depth of anaesthesia using another rule-based fuzzy logic system. The depth of anaesthesia level is fed back to a target controlled infusion system (TCI) to control the infusion of the drug propofol for maintaining a constant level of depth of anaesthesia.
Key Words: anaesthesia auditory evoked potentials fuzzy logic propofol wavelets
Transactions of the Institute of Measurement and Control, Vol. 22, No. 4,
303-330 (2000) |
|||