STIMULATOR FOR UPPER AIRWAY MUSCLE, STIMULATION CONTROLLER FOR UPPER AIRWAY MUSCLE, SUPPLIER FOR RESPIRATORY MOVEMENT WAVEFORM, INITIALIZATION DEVICE FOR RESPIRATORY MOVEMENT WAVEFORM, PROPRIETY DECISION DEVICE FOR RESPIRATORY MOVEMENT WAVEFORM AND MEDICAL DEVICE FOR OBSTRUCTIVE SLEEP APNEA PROCESSING

摘要

PROBLEM TO BE SOLVED: To achieve the more reliable synchronization of stimulation by active stimulation by monitoring the respiratory movement waveform of a patient for the change in the inclination of respiratory movement waveform characteristics at the turning point of inspiration. SOLUTION: Typical respiratory movement waveforms over two complete respiratory cycles are generated by a belt converter attached to the chest part of the patient. For the respective waveforms, characteristics are decided by a negative peak 30 at the time of expiration completion, a positive peak 35 when an inspiration action is completed and the turning point 40 for indicating the start of the inspiration action. Thus, the respective waves of the waveforms are separated into the periods of apnea 32, an inspiration stage 33 and an expiration stage 34. The respiratory movement waveforms provided with the same identifiable characteristics are supplied by monitoring other physiological signals such as pressure inside the chest, impedance inside the chest or the potential difference of electromyogram recording. The other characteristics of the waveforms are identified by analyzing the waveforms for monitoring respiratory activity in a sleep-apnea treatment.