Respiration rate measurement device

Abstract

Provided is a respiratory rate measurement device comprising: a patient connection unit for acquiring, from a user, biological information for detecting respiration; a conversion unit for converting the biological information detected by the patient connection unit into an electric signal; a respiration rate calculation unit for processing the converted electric signal to calculate a respiration rate; and a signal output unit that outputs the calculated respiration rate by at least one or more means among audio, a screen display, and a communication signal. The respiratory rate measurement device is characterized in that the respiratory rate calculation unit: calculates the respiration interval for individual respiration detected on the basis of the electric signal or respiratory supplementary information that includes the amplitude of the respiration waveform detected; calculates an index related to the reliability of the calculated respiratory rate, on the basis of the respiratory supplementary information; and outputs the index through the signal output unit. The respiratory rate measurement device calculates the respiratory rate, calculates an index related to the stability of respiration, and thereby makes it possible to determine that a situation is such that respiration detection is being performed in a stable manner.