A motor speed estimator for the control of mean arterial pressure in heart operations

Author

Hastings, Gregory ; Nguyen, Hung

Author_Institution

Centre for Biomed. Technol., Univ. of Technol., Sydney, NSW, Australia

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

440

Abstract

During operations involving heart bypasses the operator of the blood pumping device usually looks at such parameters as blood pressure, flow and the level of oxygen in the blood. During such an operation a high level of demand is required by the operator to maintain the required bloodflow (which may require even further input by the surgeon). A fuzzy logic monitor has been developed that can assist in achieving the required pump speed and can be designed to produce alarms when critical regions are reached and when there is possible errors in judgement of the required pump speed

Keywords

alarm systems; biocontrol; blood pressure measurement; cardiovascular system; closed loop systems; flow control; fuzzy control; fuzzy logic; inference mechanisms; medical expert systems; patient monitoring; pressure control; surgery; alarms; blood pumping device; closed loop response; constant flow pump; defuzzification; feedback control; fuzzification; fuzzy controller; fuzzy inference; fuzzy logic monitor; fuzzy reasoning; heart bypass operations; human operator; intelligent support system; mean arterial pressure control; mock circulation loop; motor speed estimator; required pump speed; Biomedical measurements; Blood flow; Blood pressure; Fuzzy logic; Heart; Humans; Monitoring; Pressure control; Pressure measurement; Pumps;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.745940

Filename

745940