Abstract: A blood pressure measuring apparatus includes a pressure control unit that controls an applied pressure applied to a region of a living body in which a vein and artery exist by a cuff mountable to the region, a detection unit that detects pressure waveforms in which pulse wave components from the region overlap with the applied pressure, and an analysis unit that obtains a respiratory variation on the waveform of artery and a venous pressure based on the pressure waveforms detected by the detection unit through one-time blood pressure measurement. The analysis unit obtains the respiratory variation on the waveform of artery based on data of a first pressure waveform in a first process, and the venous pressure based on data of a second pressure waveform in a second process and the data of the first pressure waveform.

Abstract: An electrocardiogram analysis apparatus includes: an electrocardiogram signal inputting section to which electrocardiogram signals of measurement electrodes attached to a subject are input; a mistaken attachment determining section which, by using the input electrocardiogram signals, determines whether the measurement electrodes are mistakenly attached or not; an outputting section which, if it is determined that the measurement electrodes are mistakenly attached, notifies of mistaken attachment of the measurement electrodes; and an electrocardiogram data storing section which, in a case where there is an input indicative of confirmation of the notification, stores information indicating that the measurement electrodes have been checked, together with the input electrocardiogram signals, and, in a case where there is not an input indicative of confirmation of the notification, stores information indicating that the measurement electrodes have not been checked, together with the input electrocardiogram signals

Abstract: A method is implemented by a computer, and includes: (a) acquiring at least one set of waveform data having a time duration from physiological information waveform data; (b) classifying a waveform included in the waveform data into a predetermined type of waveform; (c) determining validity of a classification result of the waveform; and (d) correcting the classification result in accordance with the validity of the classification result.

Abstract: A physiological information processing apparatus includes a processor and a memory storing computer-readable instructions. When the computer-readable instructions are executed by the processor, the apparatus obtains physiological information data indicative of physiological information of a subject, obtains RR interval data including a plurality of RR intervals based on the physiological information data, identifies an RR interval indicative of arrhythmia, and displays the RR interval data as plotted points on a two-dimensional coordinate system having one axis representing an n-th RR interval and another axis representing an (n+1)-th RR interval. The RR interval data is displayed on the two-dimensional coordinate system such that a visual mode of a plurality of first plotted points associated with the RR interval indicative of arrhythmia and a visual mode of plotted points of the RR interval data other than the plurality of first plotted points are different from each other.

Abstract: A physiological information processing apparatus includes an acquiring section that acquires physiological information of a subject, a classifying section that classifies the physiological information that is acquired by the acquiring section, and an analyzing section that selects an algorithm from a plurality of algorithms according to a result of the classification performed by the classifying section, and that analyzes the classified physiological information by using the selected algorithm.

Abstract: A pulse wave analyzing apparatus comprises an acquiring section (11) which acquires a pulse wave that is non-invasively measured, and an analyzer (12) which calculates data on the frequency axis by using the pulse wave, and which obtains the index value of the respiratory-induced variation based on the calculated data on the frequency axis.

Abstract: An automatic measurement point correction method includes acquiring vital signs information waveform data indicating a vital signs information waveform having a plurality of waveforms which periodically appear on a time axis, determining a plurality of measurement points for measuring a predetermined measurement item of each waveform included in the vital signs information waveform, causing the vital signs information waveform and measurement point displayers to be displayed on a displaying section, correcting a first measurement point for measuring the predetermined measurement item of a first waveform of the plurality of waveforms, as a first correction, recording the corrected first measurement point as a reference measurement point, extracting a waveform which is analogous to the first waveform, from the plurality of waveforms, and automatically correcting a measurement point for measuring the predetermined measurement item of the extracted waveform, as a second correction.

Abstract: An electrocardiogram analysis apparatus includes: an electrocardiogram signal inputting section to which electrocardiogram signals of measurement electrodes attached to a subject are input; a mistaken attachment determining section which, by using the input electrocardiogram signals, determines whether the measurement electrodes are mistakenly attached or not; an outputting section which, if it is determined that the measurement electrodes are mistakenly attached, notifies of mistaken attachment of the measurement electrodes; and an electrocardiogram data storing section which, in a case where there is an input indicative of confirmation of the notification, stores information indicating that the measurement electrodes have been checked, together with the input electrocardiogram signals, and, in a case where there is not an input indicative of confirmation of the notification, stores information indicating that the measurement electrodes have not been checked, together with the input electrocardiogram signals

Abstract: A method is implemented by a computer, and includes: (a) acquiring at least one set of waveform data having a time duration from physiological information waveform data; (b) classifying a waveform included in the waveform data into a predetermined type of waveform; (c) determining validity of a classification result of the waveform; and (d) correcting the classification result in accordance with the validity of the classification result.

Abstract: A physiological information processing apparatus includes an acquiring section that acquires physiological information of a subject, a classifying section that classifies the physiological information that is acquired by the acquiring section, and an analyzing section that selects an algorithm from a plurality of algorithms according to a result of the classification performed by the classifying section, and that analyzes the classified physiological information by using the selected algorithm.

Abstract: A physiological information processing apparatus includes a processor and a memory storing computer-readable instructions. When the computer-readable instructions are executed by the processor, the apparatus obtains physiological information data indicative of physiological information of a subject, obtains RR interval data including a plurality of RR intervals based on the physiological information data, identifies an RR interval indicative of arrhythmia, and displays the RR interval data as plotted points on a two-dimensional coordinate system having one axis representing an n-th RR interval and another axis representing an (n+1)-th RR interval. The RR interval data is displayed on the two-dimensional coordinate system such that a visual mode of a plurality of first plotted points associated with the RR interval indicative of arrhythmia and a visual mode of plotted points of the RR interval data other than the plurality of first plotted points are different from each other.

Abstract: An electrocardiogram analyzing method includes: (a) acquiring electrocardiogram data representing an electrocardiogram waveform having heart beat waveforms; (b) acquiring RR interval data from the electrocardiogram data; (c) detecting at least one premature ventricular contraction causing a compensatory pause; (d) extracting, from the RR interval data, RR intervals during the detected premature ventricular contraction and before and after the detected premature ventricular contraction; (e) extracting a first RR interval group and a second interval group respectively from the RR intervals, wherein the first interval group includes the intervals before the premature ventricular contraction, and the second interval group includes the intervals after the premature ventricular contraction; (f) performing a predetermined frequency analysis on the first RR interval group; (g) performing the frequency analysis on the second RR interval group; and (h) comparing a first analysis result obtained by the step (f) and a se

Abstract: A vascular endothelial function inspection apparatus includes a first cuff that is mounted to a first part of a subject, a cuff pressure control unit that controls a pressure applied to the first cuff, a pressure sensor that is connected to the first cuff, a cuff pressure detection unit that detects a cuff pressure from an output of the pressure sensor, a pulse wave detection unit that detects pulse waves from the output of the pressure sensor, a blood pressure measuring unit that measures a blood pressure value based on the cuff pressure and the pulse waves, a storage unit that stores therein an elasticity index value indicating an elasticity of a blood vessel of the subject, and an analysis unit that performs data processing for evaluating an endothelial function of the blood vessel.

Abstract: A pulse wave analyzing apparatus comprises an acquiring section (11) which acquires a pulse wave that is non-invasively measured, and an analyzer (12) which calculates data on the frequency axis by using the pulse wave, and which obtains the index value of the respiratory-induced variation based on the calculated data on the frequency axis.

Abstract: A non-invasive venous pressure measurement apparatus is provided, including: a first cuff attached to a portion including a vein and an artery in a living body; a pressure control unit that changes a first applied pressure applied by the cuff to the portion; a pulse wave detection unit that detects a pulse wave from a pressure received by the cuff from the portion; another pulse wave detection unit that detects another pulse wave including at least an arterial pulse wave in another portion of the living body; an analyzing unit that analyzes a correlation between the two pulse waves, which are changed as the applied pressure is changed by the pressure control unit changes; and a venous pressure calculation unit that calculates a venous pressure based on the applied pressure and a result of analysis by the analyzing unit.

Abstract: A biological information displaying apparatus includes: a measuring section which is configured to measure a biological information waveform containing a specific measurement value; a calculating section which is configured to calculate the specific measurement value based on the biological information waveform that is measured by the measuring section in a designated unit time; a determining section which is configured to determine a level of a reliability of the specific measurement value that is calculated by the calculating section, based on the biological information waveform that is measured by the measuring section in the unit time; and a displaying section which is configured to display a trend graph of the specific measurement values while the specific measurement values are distinct according to the level of the reliability that is determined by the determining section.

Abstract: A vital signs information measuring apparatus includes a calculating section which calculates a baroreflex index, a sympathetic nerve index, a heart rate, an estimated cardiac output, and an alternative index of blood pressure by using at least one of an electrocardiographic signal of a living body, and a pulse wave of the living body and a displaying section that displays changes of the baroreflex index, sympathetic nerve index, heart rate, estimated cardiac output, and alternative index of blood pressure that are calculated by the calculating section.

Abstract: A waveform analysis method for analyzing vital sign waveform data by using respiratory waveform data which are synchronized with the vital sign waveform data includes acquiring the vital sign waveform data and the respiratory waveform data, determining an expiratory phase and an inspiratory phase from the respiratory waveform data, extracting given waveform data corresponding to the expiratory phase, and given waveform data corresponding to the inspiratory phase from the vital sign waveform data, performing a first waveform analysis M which a given waveform analysis is applied to the extracted given waveform data corresponding to the expiratory phase, and performing a second waveform analyzing in which the given waveform analysis is applied to the extracted given waveform data corresponding to the inspiratory phase.

Abstract: A non-invasive venous pressure measurement apparatus is provided, including: a first cuff attached to a portion including a vein and an artery in a living body; a pressure control unit that changes a first applied pressure applied by the cuff to the portion; a pulse wave detection unit that detects a pulse wave from a pressure received by the cuff from the portion; another pulse wave detection unit that detects another pulse wave including at least an arterial pulse wave in another portion of the living body; an analyzing unit that analyzes a correlation between the two pulse waves, which are changed as the applied pressure is changed by the pressure control unit changes; and a venous pressure calculation unit that calculates a venous pressure based on the applied pressure and a result of analysis by the analyzing unit.

Abstract: A non-invasive venous pressure measurement apparatus is provided, including: a first cuff attached to a portion including a vein and an artery in a living body; a pressure control unit that changes a first applied pressure applied by the cuff to the portion; a pulse wave detection unit that detects a pulse wave from a pressure received by the cuff from the portion; another pulse wave detection unit that detects another pulse wave including at least an arterial pulse wave in another portion of the living body; an analyzing unit that analyzes a correlation between the two pulse waves, which are changed as the applied pressure is changed by the pressure control unit changes; and a venous pressure calculation unit that calculates a venous pressure based on the applied pressure and a result of analysis by the analyzing unit.