LUNG ARTIFICIAL RESPIRATOR CONTROLLING METHOD AND LUNG ARTIFICIAL RESPIRATOR CONTROLLER

摘要

PROBLEM TO BE SOLVED: To provide a lung artifitial respirator controlling method and a lung artificial respirator controller which can adjust a degree of respiration assistance relating to actual need of a patient.;SOLUTION: In order to control a lung artificial respirator comprising an inspiratory implement, an air supply system for supplying air to the inspiratory implement, and a control unit for controlling the air supply system, electromyographic signals produced in the patient's diaphragm 11 are detected by an array of electrodes 12 passing through the center of the patient's diaphragm depolarizing region. The position of the center of the patient's diaphragm depolarizing region is determined through detection of a polarity of the electromyographic component of the electromyographic signals. An electromyographic signal having an improved signal-to-noise ratio is produced by mutually subtracting the electromyographic signals. The electromyographic signal of improved signal-to-noise ratio is supplied as an input signal to the control unit of the lung artificial respirator for controlling the air supply system in relation to the electromyographic signal of improved signal-to-noise ratio and of reduced electrode-position-induced filter effect.;COPYRIGHT: (C)2006,JPO&NCIPI