Title :
Processed EMG for closed-loop control of atracurium infusion
Author :
Welna, J.O. ; Abenstein, J.P. ; Jones, K.A. ; Lennon, R.L.
Author_Institution :
Mayo Clinic, Rochester, MN, USA
Abstract :
The design and application of a closed-loop controller for the infusion of the muscle relaxant atracurium are described. The controller uses a processed electromyography system for the feedback signal and a new control algorithm, for which a flowchart is given. Initial clinical testing in the operating room demonstrated excellent control characteristics. The algorithm settled within 15 min with very little variation in the state of relaxation. Each person had his or her own settling point, but this was always within 7-12% of control, which produced acceptable clinical relaxation
Keywords :
biocontrol; bioelectric potentials; closed loop systems; muscle; patient treatment; atracurium infusion; clinical relaxation; clinical testing; closed-loop control; feedback signal; flowchart; muscle relaxant; processed electromyography system; settling point; Anesthesia; Control systems; Drugs; Electromyography; Muscles; Neuromuscular; Patient monitoring; Signal processing; Surgery; System testing;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96349
