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Adaptive computer control of anesthesia in humans

Author

Listed:
  • Juan Albino Méndez
  • Santiago Torres
  • José Antonio Reboso
  • Héctor Reboso

Abstract

This paper presents an efficient computer control technique for regulation of anesthesia in humans. The anesthetic used is propofol and the objective is to control the degree of hypnosis of the patient. The paper describes the basic hardware/software setup of the system and the closed-loop methodologies. The bispectral index (BIS) is considered as the feedback signal. The control methods proposed here are based in the use of proportional integral controllers with dead-time compensation to avoid undesirable oscillations in the BIS signal during the process. The compensation is based on the Smith predictor. To guarantee the applicability of the method to different patients, an adaptive module to tune the compensator is developed. Some real and simulated results are presented in this work to attest the efficiency of the methods used.

Suggested Citation

  • Juan Albino Méndez & Santiago Torres & José Antonio Reboso & Héctor Reboso, 2009. "Adaptive computer control of anesthesia in humans," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 12(6), pages 727-734.
    • Handle: RePEc:taf:gcmbxx:v:12:y:2009:i:6:p:727-734
    DOI: 10.1080/10255840902911528
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