Title :
Model-based control of hemodialysis
Author :
Moissl, Ulrich ; Wabel, Peter ; Isermann, Rolf
Author_Institution :
Inst. of Autom. Control, Darmstadt Univ. of Technol., Germany
Abstract :
In 30% of all hemodialysis treatments a sudden hypotension occurs due to excessive fluid removal. Currently the rate of fluid removal (ultrafiltration rate or UFR) is set to predefined values based on expert knowledge of the doctor. This paper is a first step towards closing the open loop control by presenting a hydraulic circulation model of the patient, which can be used in an observer structure in order to keep certain state variables like venous pressure or cardiac output above critical values
Keywords :
biomedical equipment; closed loop systems; haemodynamics; observers; patient treatment; state feedback; closed loop system; fluid removal; hemodialysis treatments; human circulation model; hydraulic circulation model; hypotension; observer; state-feedback; ultrafiltration rate; Automatic control; Blood pressure; Cardiac disease; Cardiology; Electrical resistance measurement; Heart rate; Medical treatment; Open loop systems; Pressure control; Pressure measurement;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.946233
