JP2007097615A - Cardiovascular function measuring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cardiovascular function measuring system which determines a relaxed state of a person to be measured and measures cardiovascular functions of the person to be measured while relaxing him/her. <P>SOLUTION: The cardiovascular function measuring system 100 is equipped with an inducing part 1 for inducing the person to be measured to be in a relaxed state, a status determining part 2 for determining the relaxed state of the person to be measured, and a function measuring part 3 for measuring the cardiovascular functions of the person to be measured. The inducing part 1 applies a stimulus to the person to be measured, and the function measuring part 3 measures the cardiovascular functions depending on the determination that he/she is relaxed by the status determining part 2. Consequently, the cardiovascular function measuring system 100 can acquire a highly reliable measurement result since the system 100 measures the cardiovascular functions while relaxing the person to be measured. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a circulatory function measurement system that measures a circulatory function in a state where a person to be measured is relaxed.

  Measurement of circulatory functions such as blood pressure and blood vessel hardness is preferably performed in a state where the person to be measured is relaxed. This is because the blood pressure rises when the person being measured is tense, the internal pressure applied to the blood vessel wall increases, and the normal circulatory function is correctly measured by the functional hardening that becomes harder than the physical hardness of the original blood vessel. It ’s not done. Therefore, for example, as shown in Patent Document 1 and Patent Document 2, in order to relieve the tension of the measurement subject during measurement of the circulatory function, a circulatory function measuring device including a display unit that displays a moving image, 2. Description of the Related Art A circulatory function measuring device having a function of flowing music is known.

However, in the techniques shown in Patent Document 1 and Patent Document 2, only the function of relieving the tension of the person to be measured is added to the circulatory function measuring device, and the tension of the person to be measured is actually relieved. It was not possible to determine whether or not Moreover, as shown in Patent Document 3, there is known a relaxation device that determines the degree of relaxation of a person to be measured and applies a stimulus according to the determination result to the human body. However, since the technique disclosed in Patent Document 3 does not have a function of measuring the subject's circulatory function, the subject's circulatory function cannot be measured.
JP 2003-135405 A Japanese Examined Patent Publication No. 7-53156 JP-A-9-070399

  The present invention has been made in order to solve the above-described problems of the conventional example, and in order to measure the circulatory function in a state where the measurement subject is not tensed, the measurement subject is stimulated to relax the measurement subject. Circulatory function measurement system that can obtain a reliable circulatory function measurement value by determining the relaxed state of the subject and measuring the circulatory function while the subject is relaxed The purpose is to provide.

  In order to achieve the above object, the invention according to claim 1 is directed to a guidance unit that gives a stimulus to the measurement subject to induce the measurement subject to a relaxed state, a state determination unit that determines a relaxed state of the measurement subject, and a state And a function measuring unit that measures the cardiovascular function of the subject when the subject is determined to be in a relaxed state.

  The invention according to claim 2 further includes a state notifying unit for notifying a determination result by the state determining unit in the circulatory function measuring system according to claim 1.

  According to a third aspect of the present invention, in the circulatory function measuring system according to the first or second aspect, the start time of the function measuring unit is controlled in accordance with the relaxed state of the measurement subject determined by the state determining unit. A start time control unit is further provided.

  The invention according to claim 4 further includes a control unit that sets the operation content of the guide unit according to the determination content by the state determination unit in the circulatory function measurement system according to any one of claims 1 to 3. It is what I did.

  Further, the invention of claim 5 is the circulatory function measurement system according to any one of claims 1 to 4, wherein the state determination unit is configured to measure the measurement subject before or during measurement of the circulatory function by the function measurement unit. A reliability evaluation unit that determines a relaxed state and evaluates reliability of a measurement value obtained by the function measurement unit based on a determination result by the state determination unit, and a reliability notification that notifies the reliability evaluated by the reliability evaluation unit And a part.

  The invention of claim 6 is the circulatory function measurement system according to any one of claims 1 to 5, wherein the state determination unit measures the circulatory function before the function measurement unit measures the circulatory function. A measurement result correction unit that determines the relaxed state of the person being measured and corrects the circulatory function measurement value measured by the function measurement unit based on the determination result by the state determination unit. .

  The invention according to claim 7 is the circulatory function measurement system according to any one of claims 1 to 6, wherein the guide unit performs a plurality of different relaxation guide operations on the subject to be measured. The measurer is induced to relax mentally and physically.

  The invention according to claim 8 is the circulatory function measurement system according to any one of claims 1 to 7, wherein the state determination unit includes an operation time measurement unit that measures the operation time of the induction unit. The relaxed state of the measurement subject is determined based on the operation time of the guide unit measured by the measurement unit.

  The invention according to claim 9 is the circulatory function measurement system according to any one of claims 1 to 8, wherein the state determination unit includes a biological information measurement unit that measures biological information of the measurement subject, and the biological information. A biological information analysis unit that analyzes the biological information measured by the measurement unit, and determines the relaxed state of the measurement subject based on the analysis result of the biological information analysis unit.

  The invention according to claim 10 is the circulatory function measurement system according to any one of claims 1 to 9, wherein the state determination unit includes a mental state determination unit that determines a mental relaxation state, and physical relaxation. A physical state determining unit for determining the state.

  Further, the invention of claim 11 is the circulatory function measurement system according to any one of claims 1 to 10, wherein the guide section sequentially executes a plurality of different relaxation guide operations on the measurement subject, respectively. A biological data measuring unit for measuring biological data related to the measurement subject's living body for each relaxation guidance operation, a biological data analyzing unit for analyzing the biological data measured by the biological data measuring unit, and an analysis result by the biological data analyzing unit In response to this, the apparatus further includes a guidance operation selection unit that selects one relaxation guidance operation.

  Further, in the circulatory function measurement system according to any one of claims 1 to 11, the invention of claim 12 selects the relaxation induction operation for improving the circulatory function based on the measurement result by the function measurement unit. The improvement operation selection unit is further provided, and the induction unit is configured to execute the relaxation induction operation selected by the improvement operation selection unit.

  The invention of claim 13 is the circulatory function measurement system according to any one of claims 1 to 12, wherein the function measurement unit includes a pulse wave measurement unit that measures the pulse wave of the measurement subject, and the pulse wave. And a pulse wave analysis unit for analyzing the pulse wave measured by the measurement unit, and the cardiovascular function of the measurement subject is estimated based on an analysis result by the pulse wave analysis unit.

  According to the first aspect of the present invention, since the circulatory function can be measured in a state where the person to be measured is relaxed, a highly reliable measurement result can be obtained.

  According to the invention of claim 2, since the state notification unit notifies the relaxed state of the measurement subject, the measurement target can easily know the relaxed state.

  According to the invention of claim 3, since the start time control unit operates the function measuring unit according to the relaxed state of the person to be measured by the state determining unit, the person to be measured determines whether the function measuring unit has started. You can take measurements of cardiovascular function in a more relaxed environment.

  According to the invention of claim 4, since the operation time and the operation type of the guidance unit are appropriately changed according to the determination content by the state determination unit, the measurement subject can be easily guided to a relaxed state.

  According to the invention of claim 5, since the reliability of the circulatory function measurement value (hereinafter abbreviated as measurement value) evaluated by the reliability evaluation unit is notified, the measurement subject can easily determine the reliability of the measurement value. Can be judged.

  According to the invention of claim 6, since the measurement value is corrected by the measurement result correction unit, the measurement subject can trust the measurement value by the function measurement unit even when the reliability of the measurement value is low without re-measurement. A highly reliable measurement value can be obtained.

  According to the seventh aspect of the present invention, the measurement subject is guided to a mentally and physically relaxed state by the guiding portion, so that a more reliable measurement value can be obtained.

  According to the eighth aspect of the present invention, the relaxed state of the measurement subject can be easily determined.

  According to the invention of claim 9, it is possible to accurately determine the relaxed state of the measurement subject.

  According to the invention of claim 10, it is possible to accurately determine the relaxed state of the measurement subject.

  According to the eleventh aspect of the invention, since the relaxation guidance operation that effectively relaxes the person to be measured is selected, the person to be measured can be efficiently guided to the relaxed state.

  According to the twelfth aspect of the present invention, the relaxation guidance operation for improving the circulatory function of the person to be measured is selected based on the measurement result of the circulatory function. be able to.

  According to the invention of claim 13, since the circulatory function is estimated based on the pulse wave analysis result, the reliability of the measured value can be improved.

  Hereinafter, a cardiovascular function measurement system (hereinafter referred to as the present system) according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of the system according to the first embodiment of the present invention, and FIG. 2 shows the configuration of the system. The system 100 includes a guidance unit 1, a state determination unit 2, a function measurement unit 3, and a central processing unit 300. The guiding unit 1 guides the subject to a relaxed state, and the state determining unit 2 determines the relaxed state of the subject. The function measuring unit 3 measures the subject's cardiovascular function, and the central processing unit 300 controls the entire cardiovascular measurement system 100 including the guiding unit 1, the state determining unit 2, and the function measuring unit 3. The guiding unit 1 includes an image display unit 101 that displays an image, a voice and music generation unit 102 that generates voice or music, and a massage mechanism unit 103 that massages the measurement subject. The image display unit 101 is a display device such as a CRT display or a plasma display, for example, and displays a still image or a moving image that guides the measurement subject to a relaxed state. The audio music generation unit 102 generates audio or music that guides the measurement subject to a relaxed state. The massage mechanism unit 103 massages each part of the body of the measurement subject with a treatment element such as a fir tree or an air bag to guide the measurement subject to a relaxed state.

  The state determination unit 2 includes a finger plethysmograph 104 (hereinafter referred to as a pulse wave meter) that determines the relaxed state of the measurement subject by measuring the pulse wave of the measurement subject's fingertip. Pulse meter 104 includes a photoelectric sensor including a light emitting diode and a phototransistor. The sphygmograph 104 receives reflected light of the infrared light irradiated to the artery from the light emitting diode by the phototransistor, and detects a change in the volume of the blood vessel synchronized with the pulsation of the heart as a pulse wave based on the reflected light amount. . The function measuring unit 3 includes a cuff 301 that is attached to the upper arm of the measurement subject and measures the pulse wave of the measurement subject. The cuff 301 is a compression band that compresses a predetermined portion of the measurement subject, and is configured by a rubber bag that can be attached while being wound around the predetermined portion of the measurement subject. The cuff 301 is connected to a pressure detection unit 303 and a compression pressure control unit 304 (hereinafter referred to as a pressure control unit), which will be described later, via a communication pipe 302.

  FIG. 3 shows a configuration of the state determination unit 2 according to the first embodiment of the present invention. The relaxed state determination unit 2 includes a finger plethysmogram measurement unit 21 (hereinafter referred to as a measurement unit), a finger plethysmogram analysis unit 22 (hereinafter referred to as an analysis unit), and a state output unit 205. The measurement unit 21 measures the pulse wave of the fingertip of the measurement subject, and the analysis unit 22 analyzes the pulse wave measured by the measurement unit 21. The state output unit 205 outputs the evaluation result of the relaxed state. The analysis unit 22 includes a pulse wave interval calculation unit 202 (hereinafter referred to as an interval calculation unit), an index calculation unit 203, and a state evaluation unit 204. The interval calculation unit 202 calculates an appearance time interval (hereinafter referred to as a pulse wave interval) of the pulse wave from a plurality of pulse waves detected by the pulse wave meter 104, and the index calculation unit 203 is calculated by the interval calculation unit 202. The measured pulse wave interval is analyzed, and the index related to the relaxed state is quantitatively calculated from the fluctuation degree of the pulse wave interval. The state evaluation unit 204 evaluates the relaxed state of the measurement subject based on a preset evaluation criterion based on the quantitative relaxation index value calculated by the index calculation unit 203. Here, the state output unit 205 is, for example, a display device or a sound generation device that notifies the measurement subject of the result of the evaluation by the state evaluation unit 204, and is a circuit that outputs a control signal to the function measurement unit 3. There may be.

  Next, a method in which the state determination unit 2 determines the relaxed state of the measurement subject will be described. The interval calculation unit 202 calculates the pulse wave interval, and the index calculation unit 203 analyzes the pulse wave interval and quantitatively calculates the relaxation index related to the relaxed state from the pulse rate and the fluctuation degree of the pulse wave interval. The state evaluation unit 204 evaluates the relaxed state of the measurement subject based on the quantitative relaxation index value calculated by the index calculation unit 203. To evaluate the relaxed state, for example, the pulse rate per minute is calculated from the pulse wave interval, and when the pulse rate is higher than the preset evaluation criteria, it is tense, and when it is low, it is evaluated as relaxed. May be. In the evaluation of the relaxed state, the high frequency component (HF: High Frequency) and the low frequency component (LF: Low Frequency) generally used in the analysis of the heart rate variability are calculated by frequency analysis of the fluctuation of the pulse wave interval, The parasympathetic activity may be evaluated by HF, and the sympathetic activity may be evaluated by LF / HF. Further, evaluation may be performed by calculating a standard deviation and an arithmetic average of the distribution of pulse wave intervals at a predetermined time, and calculating a coefficient of variation that is a ratio of the standard deviation to the arithmetic average.

  In the relaxed state, the parasympathetic nerve is dominant in the relaxed state, so that the average value of the RR interval becomes longer and may periodically change. The RR interval is the interval between the R wave of the electrocardiogram component and the next R wave, and the R wave is a wave generated when blood is sent from the left ventricle to the aorta in the electrocardiogram component. Furthermore, the relaxed state is evaluated by using a pulse wave, a velocity pulse wave obtained by differentiating the pulse wave, and an acceleration pulse wave obtained by differentiating the pulse wave twice instead of the RR interval of the electrocardiogram. It may be calculated from the interval between feature quantities (rising point, peak point, inflection point, etc. of the pulse wave) and may correspond to fluctuations in the RR interval of the electrocardiogram. Then, the relaxation index value obtained from the pulse wave interval is associated with the degree of relaxation, and the degree of relaxation is determined. Here, the degree of relaxation means, for example, a pulse wave measured in advance by a pulse wave meter 104 that is set in advance so as to determine a relaxed state from a non-relaxed state as a first step to a fifth step. Determine the degree of relaxation.

また、被測定者の脈拍数をある所定時間計測し、その平均値と標準偏差から、Ｐｒ−Ｐｓが標準偏差+２を超えれば第１段階、標準偏差＋１〜標準偏差＋２であれば第２段階、標準偏差±１以内であれば第３段階目、標準偏差−１〜標準偏差−２であれば第４段階、標準偏差−２より少なければ第５段階と判定してもよい。 For example, the level of relaxation is measured in advance by measuring the pulse rate Ps in a resting state of the subject, and if Pr-Ps, which is the difference from the pulse rate Pr when determining the relaxed state, is less than -20 beats, 1st stage (relaxed state “low”), if it is −10 to −20 beats, 2nd stage (relaxed state “slightly low”), if within ± 10 beats, relaxed state 3rd stage (standard) ), If it is between +10 beats and +20 beats, it is in the fourth stage (relaxed state “high”), and if it exceeds +20 beats, it is in the fifth stage (relaxed state “high”). Table 1 summarizes the level of relaxation.

Further, the pulse rate of the measurement subject is measured for a predetermined time, and from the average value and the standard deviation, the first stage is obtained if Pr-Ps exceeds the standard deviation +2, and the second stage if the standard deviation +1 to the standard deviation +2. If the standard deviation is within ± 1, the third stage may be determined, and if standard deviation-1 to standard deviation-2, the fourth stage may be determined. If less than standard deviation-2, the fifth stage may be determined.

  FIG. 4 shows a configuration of the function measuring unit 3 according to the first embodiment of the present invention. The function measurement unit 3 includes an upper arm pulse wave measurement unit 31 (hereinafter referred to as a measurement unit), an upper arm pulse wave analysis unit 32 (hereinafter referred to as an analysis unit), and a function result output unit 310. The measurement unit 31 measures the pulse wave of the measurement subject with the cuff 301, and the analysis unit 32 analyzes the pulse wave measured by the measurement unit 31. The function result output unit 310 outputs the determination result by the analysis unit 32. The measurement unit 31 includes a pressure detection unit 303, a pressure control unit 304, a pulse wave detection processing unit 305 (hereinafter referred to as a detection processing unit), a pulse wave pressure detection unit 306 (hereinafter referred to as a pressure detection unit), a pulse A wave data storage unit 307 (hereinafter referred to as a data storage unit). The pressure detection unit 303 detects the pressure in the cuff 301, and the pressure control unit 304 changes the compression pressure of the cuff 301. The detection processing unit 305 detects a pulse wave of the artery and performs a predetermined process, and the pressure detection unit 306 detects the pressure in the cuff 301 at the time when the pulse wave is detected. The data storage unit 307 stores data related to the detected pulse wave. The analysis unit 32 includes a pulse wave feature amount calculation unit 308 (hereinafter referred to as a feature amount calculation unit) and a function determination unit 309. The feature amount calculation unit 308 calculates the feature of the pulse wave as a numerical value, and the function determination unit 309 determines the circulatory function from the numerical value calculated by the feature amount calculation unit 308.

  The pressure control unit 304 is connected to the cuff 301 via the communication pipe 302, and a pressure pump that pressurizes the pressure in the cuff 301 by supplying gas into the cuff 301, and exhausts the gas in the cuff 301. And an exhaust valve for reducing the pressure in the cuff 301. Further, the pressure control unit 304 pressurizes the pressure in the cuff 301 according to the control signal of the central processing unit 300 so that the pressure in the cuff 301 becomes a predetermined pressure higher than the highest blood pressure expected of the measurement subject, Thereafter, the pressure in the cuff 301 is gradually reduced. The pressure detection unit 303 is connected to the cuff 301 via the communication pipe 302, detects the pressure in the cuff 301 at a predetermined sampling interval, and outputs the detected pressure to the detection processing unit 305. Here, the pressure detection unit 303 includes, for example, a pressure sensor that detects pressure by converting pressure into voltage, and an analog / digital converter (A / D conversion) that converts an output of the pressure sensor from an analog signal to a digital signal. Instrument).

  The detection processing unit 305 includes a filter circuit that cuts a predetermined frequency component such as a direct current component from the output of the pressure detection unit 303. The detection processing unit 305 generates a pulse wave signal by cutting a predetermined frequency component from the pressure detected by the pressure detection unit 303, and detects a pulse wave amplitude as pulse wave information from the generated pulse wave signal. The pressure detection unit 306 calculates the compression pressure when the pulse wave is detected based on the pressure signal and the pulse wave detection data, and the data storage unit 307 calculates the pulse wave amplitude and the pulse wave detection pressure obtained from the pulse wave. Is stored. The feature amount calculation unit 308 calculates a feature amount reflecting the circulatory function from the data stored in the data storage unit 307 based on a preset algorithm. The function determination unit 309 determines the circulatory function based on the feature amount calculated by the feature amount calculation unit 308. The function result output unit 310 is a device that outputs a circulatory function determination result, and is, for example, a display device or a printing device.

  Next, the method by which the function measuring unit 3 determines the subject's cardiovascular function will be described. The central processing unit 300 outputs a control signal for rapidly increasing the pressure in the cuff 301 to the target pressure to the pressure control unit 304. The pressure control unit 304 pressurizes the cuff 301 by supplying a gas into the cuff 301 based on the control signal. As a result, the upper arm of the measurement subject is strongly compressed by the cuff 301, and the blood flow of the artery under the cuff 301 is blocked. When the pressure detected by the pressure detection unit 303 reaches a target pressure, for example, a predetermined pressure higher than the expected maximum blood pressure of the measurement subject, the central processing unit 300 applies a control signal for gradually reducing the pressure in the cuff 301. The data is output to the control unit 304. Based on this control signal, the pressure control unit 304 gradually exhausts the gas in the cuff 301 and starts the slow depressurization in the cuff 301.

  Next, based on the output of the pressure detection unit 303, the detection processing unit 305 cuts a predetermined frequency component such as a direct current component from the output of the pressure detection unit 303 by a filter circuit, and extracts a pulse wave superimposed on the pressure signal. Then, the pulse wave amplitude in the extracted pulse wave is detected. The pulse wave pressure detection unit 305 detects the compression pressure at the time when the pulse wave is detected among the pressures input from the pressure detection unit 303 at a predetermined sampling interval. The data storage unit 307 stores the pulse wave amplitude in association with the compression pressure at the time when the pulse wave amplitude is detected. When the corresponding stored pulse wave amplitude and compression pressure data are plotted, this plot shows that the amplitude of the pulse wave changes as the compression pressure changes, so the change in the amplitude of the pulse wave is a mountain shape. It is known to draw.

  FIG. 5 shows a temporal change in the pressure of the cuff 301 according to the first embodiment of the present invention. Here, the temporal change in the pressure of the cuff 301 is a process in which the cuff 301 is rapidly pressurized to the target pressure and then depressurized at a substantially constant speed, the horizontal axis indicates time, and the vertical axis indicates The pressure of the cuff 301 is shown. The pulse wave 1000 is superimposed on the pressure of the cuff 301. FIG. 6 shows a pulse wave envelope according to the first embodiment of the present invention. Here, the horizontal axis indicates the pressure of the cuff 301, and the vertical axis indicates the amplitude of the pulse wave. The solid line obtained by extracting the pulse wave 1000 in FIG. 5 and arranging it in time series for each heartbeat becomes the pulse waves 1000-2, 1000-3, 1000-4 whose amplitude gradually increases from the minute pulse wave 1000-1. After the amplitude reaches its peak, the amplitude gradually becomes a small pulse wave. As a result, pulse wave envelopes (hereinafter referred to as pulse wave envelopes) 1001 arranged in time series for each heartbeat have a mountain shape as indicated by a broken line. The change in the amplitude of the pulse wave accompanying this change in compression pressure is basically due to the non-linear mechanical characteristics (pressure-volume characteristics) of the blood vessel, so the pulse wave envelope reflects the degree of hardness of the blood vessel. Yes.

  FIG. 7 shows basic shape parameters of the pulse wave envelope according to the first embodiment of the present invention. Here, the horizontal axis indicates the pressure of the cuff 301, and the vertical axis indicates the amplitude of the pulse wave. The hardness of the blood vessel can be estimated from the shape feature quantity of the pulse wave envelope calculated using the width W at the predetermined position in FIG. 7, the height H at the predetermined position, and the inclination θ at the predetermined position. it can. In addition, although the structure which measures a pulse wave while reducing the pressure of the cuff 301 here was shown, the structure which measures a pulse wave while pressurizing the pressure of the cuff 301 is similar, and the same mountain-shaped pulse wave envelope Thus, the circulatory function can be estimated from the shape feature quantity of the pulse wave envelope. The feature amount calculation unit 308 calculates the shape feature amount of the pulse wave envelope, and the function determination unit 309 determines the hardness of the blood vessel based on the shape feature amount of the pulse wave envelope calculated by the feature amount calculation unit 308. To do. The shape feature amount of the pulse wave envelope may be calculated from a value other than the width W at the predetermined position, the height H at the predetermined position, or the inclination θ at the predetermined position. In addition, the function determination unit 309 uses a feature amount calculated from a value other than the width W at the predetermined position, the height H at the predetermined position, or the inclination θ at the predetermined position, to circulate other than the stiffness of the blood vessel. Information on the vessel function may be extracted. Furthermore, since the systolic blood pressure, the diastolic blood pressure, or the average blood pressure can be estimated from the pulse wave envelope shape by a method generally called an oscillometric method, the blood pressure value may be estimated simultaneously with the hardness of the blood vessel.

  When the pressure detected by the pressure detection unit 303 reaches the end target pressure, the pressure detection unit 303 ends the slow depressurization. The central processing unit 300 outputs a control signal for returning the pressure in the cuff 301 to substantially atmospheric pressure to the pressure control unit 304. Based on this control signal, the pressure control unit 304 quickly exhausts the gas in the cuff 301 to release the upper arm portion of the measurement subject from the compression. The function determination unit 309 is set in advance so as to determine the hardness level of the blood vessel in the first to fifth steps in order from the softer blood vessel. The function result output unit 310 displays the determination result of the circulatory function such as the blood vessel hardness level and the blood pressure value as, for example, the blood vessel hardness level “fourth stage”, the highest blood pressure “150”, and the lowest blood pressure “92”. Display or print out. The function result output unit 310 may include an LED indicating the reliability of the circulatory function measurement result based on the determination result of the state determination unit 2. When the state determination unit 2 determines that the state determination unit 2 is in the relaxed state, the function result output unit 310 turns on the LED simultaneously with outputting the circulatory function measurement result.

  Next, the operation of this system in this embodiment will be described. FIG. 8 shows an operation flow of the system according to the first embodiment of the present invention. The system 100 starts measurement when a person to be measured sits on the system 100, puts a finger into the measurement unit 21, attaches the cuff 301 to the upper arm, and turns on the power. When the power is turned on, the central processing unit 300 outputs a control signal for operating the guide unit 1. The guiding unit 1 starts an operation for guiding the measurement subject to a relaxed state based on the control signal (S1). Here, the operation for guiding the person to be measured to a relaxed state is, for example, that the image display unit 101 displays an image suitable for relaxing such as a natural landscape, or the audio music generation unit 102 performs classical or healing music. And the massage mechanism 103 performs massage by massaging or hitting the measurement subject's shoulder, back, waist, legs, or the like. Thereby, since the circulatory function system 100 can measure the circulatory function in a state where the measurement subject is relaxed, a highly reliable measurement result can be obtained. The subject can be diagnosed and treated based on the reliable cardiovascular function measurement result.

  The central processing unit 300 includes a circuit that detects that the guiding unit 1 has operated for a predetermined time. When the central processing unit 300 detects that the guiding unit 1 has operated for a predetermined time, the central processing unit 300 outputs a control signal that operates the state determination unit 2. Based on the control signal, the state determination unit 2 starts determining the relaxed state of the measurement subject (S2). The central processing unit 300 may output a control signal for operating the state determination unit 2 in response to an operation for operating the state determination unit 2 from the outside. The state determination unit 2 measures the pulse wave of the measurement subject in the pulse wave meter 104. The central processing unit 300 outputs a control signal for measuring the circulatory function to the function measuring unit 3 in response to the state determining unit 2 determining the relaxed state. The function measuring unit 3 measures the subject's cardiovascular function based on the control signal (S3). The central processing unit 300 may be configured to output a control signal for measuring the circulatory function to the function measuring unit 3 by being operated from the outside.

  In addition, when the relaxation guidance 1 does not affect the operations of the state determination unit 2 and the function measurement unit 3, it is desirable to perform the relaxation guidance operation even during the operation of the state determination unit 2 and the function measurement unit 3. Since the image display unit 101 or the audio music generation unit 102 does not affect the operations of the state determination unit 2 and the function measurement unit 3, it is desirable to display images and generate music. On the other hand, the massage mechanism unit 103 may affect the operations of the state determination unit 2 and the function measurement unit 3 by vibrating or moving the person to be measured. It is desirable to perform a massage operation that does not affect the operation of the function measuring unit 3.

  FIG. 9 shows the configuration of the system 100 according to the second embodiment of the present invention. The state determination unit 2 includes a state notification unit 4 that notifies the determined determination result. The state notification unit 4 is configured by, for example, a liquid crystal display, and displays the degree of relaxation determined by the state determination unit 2 as characters or bar graphs. FIG. 10 shows a display screen of the state notification unit 4 in the second embodiment of the present invention. The state notification unit 4 displays the degree of relaxation determined by the state determination unit 2 as a degree of relaxation in five stages. Thereby, since the state alerting | reporting part 4 alert | reports a to-be-measured person's relaxed state, a to-be-measured person can know a relaxed state. The person to be measured can easily measure the circulatory function in the relaxed state by operating the function measuring unit 3 when recognizing that the subject is in the relaxed state. In addition, the person to be measured can use the indication that the state notifying unit 4 is not in the relaxed state as a guide for operating the guiding unit 1 again. The state notification unit 4 may include an LED or a sound generation device. Even if the relaxed state is repeatedly determined, when the state notification unit 4 displays that the relaxed state is not displayed, the measurement subject may stop measuring the circulatory function or recognize the unrelaxed state. Then, the circulatory function may be measured.

  FIG. 11 shows the configuration of the system 100 according to the third embodiment of the present invention. The system 100 of this embodiment includes a start time control unit 5 (hereinafter referred to as a time control unit). After determining that the state determination unit 2 is in the relaxed state, the time control unit 5 determines the timing for starting the measurement of the circulatory function. The state determination unit 2 determines whether or not the measurement subject is in a relaxed state, and outputs a signal indicating the determination content to the time control unit 5. Based on this signal, the time control unit 5 outputs a control signal for controlling the timing for starting the operation of the function measuring unit 3 to the function measuring unit 3.

  FIG. 12 shows an operation flow of the system 100 according to the third embodiment of the present invention. When the guide unit 1 operates (S4), the state determination unit 2 determines the relaxed state of the measurement subject (S5). When the state determination unit 2 determines that the measurement subject is not in a relaxed state (No in S6), the state determination unit 2 outputs a signal indicating that the subject is not in a relaxed state to the time control unit 5, and the time control unit 5 After the elapse of time, the state determination unit 2 is again made to determine the relaxed state of the measurement subject (S5).

  On the other hand, when the state determination unit 2 determines that the measurement subject is in a relaxed state (Yes in S6), the state determination unit 2 outputs a signal indicating the relaxed state to the time control unit 5, and the time control unit 5 outputs a control signal for operating the function measuring unit 3 to the function measuring unit 3. The function measuring unit 3 measures the subject's circulatory function according to the control signal from the time control unit 5 (S7). Thereby, the time control unit 5 operates the function measuring unit 3 in response to the determination that the state determining unit is in the relaxed state, so that the person to be measured is aware of whether or not the function measuring unit 3 has started. This makes it possible to take measurements of cardiovascular function in a more relaxed environment.

  FIG. 13 shows the configuration of the system 100 according to the fourth embodiment of the present invention. The system 100 of this embodiment includes a guidance control unit 6. The guidance control unit 6 selects the operation content of the guidance unit 1 according to the determination content of the state determination unit 2, and operates the guidance unit 1 with the selected operation content. FIG. 14 shows an operation flow of the system 100 according to the fourth embodiment of the present invention. When the guide unit 1 operates (S8), the state determination unit 2 determines the relaxed state of the measurement subject (S9). If the state determination unit 2 determines that the measurement subject is not in a relaxed state (No in S10), the state determination unit 2 outputs a signal indicating that the measurement subject is not in a relaxed state to the guidance control unit 6. The guidance control unit 6 selects the operation content of the guidance unit 1 (S11), and operates the guidance unit 1 with the selected operation content (S8). On the other hand, when the state determination unit 2 determines that the measurement subject is in a relaxed state (Yes in S10), the state determination unit 2 outputs a signal indicating the relaxed state to the guidance control unit 6, and the guidance control unit 6 does not change the operation content of the guiding unit 1. The function measuring unit 3 measures the cardiovascular function of the measurement subject (S12).

  Next, the operation content of the guidance unit 1 selected by the guidance control unit 6 in step S11 will be described. The guidance control unit 6 can select an operation for extending the operation time of the guidance unit 1. The guidance control unit 6 is a value obtained by multiplying the time required from the start of the operation of the guide unit 1 until the relaxation state unit 2 determines by a predetermined rate, for example, 80% of the operation time of the relax guide 1. 1 is extended. In addition, the guidance control unit 6 may extend the operation time of the guidance unit 1 according to the degree of relaxation determined by the relaxation determination unit 2. For example, if it is determined that the degree of relaxation is the third stage, You may be allowed to extend the relaxing action for another 5 minutes.

  Further, the guidance control unit 6 may change the type of operation of the guidance unit 1. For example, when the guidance unit 1 is performing image presentation by the image display device 101, generation of music by the audio music generation unit 102, and massage by the massage mechanism unit 103, the guidance control unit 6 performs only the image display device 101. You may make it operate. In addition, the guiding unit 1 may change the type of the guiding unit 1 according to the degree of relaxation determined by the relaxation determining unit 2. For example, when the degree of relaxation is the first stage, first, the massage mechanism unit 103. The image display device 101 and the audio music generation unit 102 may be operated after the massage operation is completed. Thereby, since the guidance part 1 changes operation time and a motion kind suitably according to the determination content of the state determination part 2, it can guide a to-be-measured person to a relaxed state easily.

  FIG. 15 shows a configuration of the system 100 according to the fifth embodiment of the present invention. The system 100 of the present embodiment includes a reliability evaluation unit 7 (hereinafter referred to as an evaluation unit) and a reliability notification unit 8 (hereinafter referred to as a notification unit). The state determination unit 2 determines the relaxed state of the measurement subject before the function measurement unit 3 starts measurement or during measurement. The evaluation unit 7 evaluates the reliability of the measurement value measured by the function measurement unit 3 based on the determination of the state determination unit 2, and the notification unit 8 notifies the result of evaluation by the evaluation unit 7. The evaluation unit 7 evaluates the reliability according to the degree of relaxation determined by the state determination unit 2. For example, when the degree of relaxation is the second stage, the evaluation unit 7 evaluates “reliability is low” or “reliability level 2”. The notification unit 8 includes a liquid crystal display and a sound generator, and displays the content evaluated by the evaluation unit 7 on the liquid crystal display or by sound.

  FIG. 16 shows an operation flow of the system 100 according to the fifth embodiment of the present invention. When the guide unit 1 operates (S13), the state determination unit 2 determines the relaxed state of the measurement subject (S14). The evaluation unit 7 evaluates the reliability of the measurement value measured by the function measurement unit 3 based on the result determined by the state determination unit 2 (S15). The alerting | reporting part 8 alert | reports the content which the evaluation part 7 evaluated (S16). Thereby, the notification unit 8 notifies the reliability of the circulatory function measurement value evaluated by the evaluation unit 7, so that the measurement subject can easily determine the reliability of the circulatory function measurement value. The subject can determine whether or not to measure the circulatory function again using the reliable circulatory function measurement value as a guide, and make a diagnosis based on the reliable circulatory function measurement value. And can be dealt with.

ここで、リラックス状態判定時の脈拍数Ｐｒと安静状態における脈拍数Ｐｓの差であるＰｒ−Ｐｓを「−２０未満」、「−２０以上−１０未満」、「−１０以上１０未満」、「１０以上２０未満」、「２０以上」の５段階に範囲分けし、それぞれの範囲にリラックス判定部２が判定するリラックス度、及び評価部７が評価した信頼性を対応させている。 FIG. 17 shows a configuration of the system 100 according to the sixth embodiment of the present invention. The system 100 of the present embodiment includes a measurement result correction unit 20 (hereinafter referred to as a correction unit) in addition to the evaluation unit 7. The state determination unit 2 determines the relaxed state of the measurement subject before the function measurement unit 3 starts measurement or during measurement. The correction unit 20 corrects the circulatory function measurement value measured by the function measurement unit 3 based on Table 2.

Here, Pr-Ps, which is the difference between the pulse rate Pr when determining the relaxed state and the pulse rate Ps in the resting state, is “less than −20”, “−20 or more but less than −10”, “−10 or more but less than 10”, “ The range is divided into five stages of “10 or more and less than 20” and “20 or more”, and the degree of relaxation determined by the relaxation determination unit 2 and the reliability evaluated by the evaluation unit 7 are associated with each range.

  Here, when the reliability evaluated by the evaluation unit 7 is “1”, the circulatory function correction value is −C1, and when the reliability is “2”, the circulatory function correction value is −C2, and the rest In this case, the circulatory function correction value is set to 0 (no correction). This is because when the reliability is lower than the standard value “3”, the measurement subject is not in a relaxed state, and thus the measured value of the cardiovascular function is higher than when measured in a relaxed state. It is done. Therefore, the correction unit 20 corrects the circulatory function measurement value by subtracting a predetermined value corresponding to the reliability value from the circulatory function measurement value measured by the function measurement unit 3. The correction unit 20 corrects the circulatory function measurement value as + C4 when the reliability is “4”, and the circulatory function correction value as + C5 when the reliability is “5”. May be.

  FIG. 18 shows an operation flow of the system 100 according to the sixth embodiment of the present invention. When the guide unit 1 operates (S45), the state determination unit 2 determines the relaxed state of the measurement subject (S46), and the function measurement unit measures the circulatory function of the measurement target (S47). The evaluation unit 7 evaluates the reliability of the measurement value measured by the function measurement unit 3 based on the result determined by the state determination unit 2 (S48). The correction unit 20 corrects the circulatory function measurement value measured by the function measurement unit 3 according to the reliability evaluated by the evaluation unit 7 (S50). As a result, the correction unit 20 corrects the circulatory function measurement value, so that the person to be measured does not perform the measurement again even when the reliability of the circulatory function measurement value measured by the function measurement unit 3 is low. Reliable cardiovascular function measurements can be obtained.

  Next, the system 100 according to the seventh embodiment of the present invention will be described. In the system 100 of the present embodiment, the guiding unit 1 has a plurality of relaxation guiding operations that guide the measurement subject to a mental and physical relaxed state. In addition to the image display device 101, the voice music generation unit 102, and the massage mechanism unit 103, the guide unit 1, for example, releases a fragrance of herbs and aromas to stimulate the sense of smell of the measurement subject, Beverage provision function that provides hot milk containing water, warmth and calcium that moderately moisturizes the person, heat application mechanism that promotes blood circulation by irradiating the subject with electromagnetic waves, indoor air ventilation, air purification, or room temperature It includes an indoor environment adjustment mechanism that adjusts

  Furthermore, the guiding unit 1 may include a negative ion generation mechanism that generates negative ions, an oxygen generation mechanism that generates oxygen, and a light intensity adjustment mechanism that adjusts the illumination intensity of the room. FIG. 19 shows a modification of the system 100 according to the seventh embodiment of the present invention. As shown in FIG. 19, the guide unit 1 includes a bed 400 that can maintain a posture that does not place a burden on the measurement subject. Further, the guide unit 1 may include a pillow, a chair, an elbow rest, or a bathroom. Thereby, since the induction | guidance | derivation part 1 can guide a to-be-measured person to the state relaxed mentally and physically, the function measurement part 3 can obtain a more reliable measurement value.

FIG. 20 shows a configuration of the system 100 according to the eighth embodiment of the present invention. The state determination unit 2 of the present embodiment includes an operation time measurement unit 9 (hereinafter referred to as a time measurement unit) that measures the operation time of the guidance unit 1. The state determination unit 2 determines the relaxed state of the measurement subject based on the operation time of the guide unit 1 measured by the time measurement unit 9. As shown in Table 3, the time measuring unit 9 holds data in which the operating time Tn of the guiding unit 1 and the relaxed state RSn of the measurement subject are associated with each other in advance. Here, n is a variable that increases as 1, 2, 3,... N _end, and n _end is a value when the measurement subject is in a relaxed state. The working time Tn and the relaxed state RSn can be arbitrarily set, and are desirably set according to the age and sex of the person being measured.

  Here, when the relaxed state RSn when the operating time Tn is 10 minutes is “3”, the time measuring unit 9 measures that the operating time of the guiding unit 1 is 10 minutes. It is determined that the relaxed state RSn corresponding to the operating time Tn of 10 minutes is “3”. The time measuring unit 9 measures the operating time of the guiding unit 1 until a predetermined n reaches n = end, that is, until the measured person is in a relaxed state.

  FIG. 21 shows an operation flow of the system 100 according to the eighth embodiment of the present invention. When the guiding unit 1 starts operating (S17), the time measuring unit 9 sets 1 to the variable n (S18). When n = 1, the time measuring unit 9 measures that the operating time T1 of the guiding unit 1 has elapsed (S19), and determines the relaxed state RS1 corresponding to the operating time T1. When the relaxed state RS1 is not n = end (No in S21), the time measuring unit 9 increases 1 to n (S22), and measures that the operating time T2 of the guiding unit 1 has elapsed (S19). When the relaxed state RS1 is preset n = end (Yes in S21), the function measuring unit 3 measures the subject's cardiovascular function and ends. Thereby, the state determination part 2 can determine the to-be-measured person's relaxation state simply by measuring the operation time Tn of the guidance | induction part 1. FIG.

  FIG. 22 shows a configuration of the system 100 according to the ninth embodiment of the present invention. The state determination unit 2 includes a biological information measurement unit 10 (hereinafter referred to as an information measurement unit) and a biological information analysis unit 11 (hereinafter referred to as an information analysis unit). The information measurement unit 10 measures biological information of the measurement subject, and the information analysis unit 11 analyzes the biological information measured by the information measurement unit 10. The state determination unit 2 determines the relaxed state of the measurement subject based on the analysis result of the information analysis unit 11. In addition to the measurement unit 21 that measures the pulse wave of the measurement subject, the information analysis unit 11 includes a heart rate measurement unit that obtains a heart rate using an electrocardiogram, a sweat state measurement unit that measures a sweat state, and an electroencephalogram that measures an electroencephalogram. The measuring unit, a body temperature measuring unit that measures body temperature, an eye movement measuring unit that examines the movement state of the eyeball, or a blood circulation measuring unit that measures the degree of blood circulation.

  The information analysis unit 11 stores in advance the heart rate, the amount of sweat, the electroencephalogram, the body temperature, the eye movement state, and the blood circulation degree in a state where the measurement subject is relaxed, and compares it with each biological information measured by the information measurement unit 10. . Moreover, the information analysis part 11 may compare each biological information measured before the guidance | induction part 1 act | operates with each biological information measured after the guidance | induction part 1 act | operates. The state determination unit 2 determines the relaxed state of the measurement subject based on each biological information compared by the information analysis unit 11.

  FIG. 23 shows an operation flow of the system 100 according to the ninth embodiment of the present invention. When the guiding unit 1 starts operating (S22), the information measuring unit 10 acquires each piece of biological information (S23), and the information analyzing unit 11 stores each piece of biological information in a state where the measurement subject stored in advance is relaxed. And each biological information which the information measurement part 10 acquired is compared (S24). The state determination unit 2 determines the measurement subject's relaxed state based on each biological information compared by the information analysis unit 11 (S25), and the function measurement unit 3 measures the measurement device's cardiovascular function (S26). ). Thereby, since the state determination part 2 determines a relaxation state based on a to-be-measured person's biometric information, it can determine a to-be-measured person's relaxation state correctly.

  FIG. 24 shows the configuration of the system 100 according to the tenth embodiment of the present invention. The state determination unit 2 includes a mental state determination unit 12 (hereinafter referred to as a determination unit) and a physical state determination unit 13 (hereinafter referred to as a determination unit). The determination unit 12 determines the mental relaxation state of the measurement subject, and the determination unit 13 determines the physical relaxation state. The determination unit 12 determines a mental relaxation state by measuring the state of the subject's autonomic nerve, heart rate, sweating amount, brain wave, and the like, and the mental state determination unit 13 determines the blood circulation and body temperature of the measurement subject. Determine physical relaxation by measuring muscle hardness, etc. FIG. 25 shows a state in which the degree of relaxation is displayed in the tenth embodiment of the present invention. When the state determination unit 2 includes the state notification unit 4, the state determination unit 12 displays the mental relaxation state determined by the determination unit 12 and the physical relaxation state determined by the determination unit 13 as, for example, a five-stage bar graph. As a result, the measurement subject can know the mental relaxation state and the physical relaxation state.

  FIG. 26 shows an operation flow of the system 100 in the tenth embodiment of the present invention. When the guide unit 1 starts operating (S27), the information measurement unit 10 acquires each piece of biological information (S28), and the information analysis unit 11 analyzes each piece of biological information acquired by the information measurement unit 10 (S29). . The determination part 12 and the determination part 13 determine a to-be-measured person's mental relaxation state and a physical relaxation state based on the result which the information measurement part 10 analyzed (S30). If the determination part 12 and the determination part 13 determine a mental relaxation state and a physical relaxation state, the function measurement part 3 will measure a to-be-measured person's circulatory function (S31). Thereby, since the state determination part 2 determines a to-be-measured person's mental relaxation state and a physical relaxation state, the to-be-measured person can know a self-relaxed state finely.

  FIG. 27 shows a configuration of the system 100 according to the eleventh embodiment of the present invention. The system 100 includes a biological data measurement unit 14 (hereinafter referred to as a data measurement unit), a biological data analysis unit 15 (hereinafter referred to as a data analysis unit), and a guidance operation selection unit 16 (hereinafter referred to as an operation selection unit). . The guide unit 1 sequentially performs a plurality of different relaxation guide operations on the measurement subject. The data measurement unit 14 measures biological data related to the living body of the measurement subject during the operation of the guidance unit 1, and the data analysis unit 15 analyzes the change tendency of the biological data measured by the data measurement unit 14. The motion selection unit selects a relaxation guidance operation that is effective for the measurement subject based on the analysis result of the data analysis unit 15.

  FIG. 28 shows an operation flow of the system 100 according to the eleventh embodiment of the present invention. The central processing unit 300 sets 1 to the variable n (S32). Here, n is a variable that increases from 1 until n = end. The variable n corresponds to the type of relaxation guidance operation of the guidance unit 1. For example, when the type of relaxation guidance operation of the guidance unit 1 is five, end is 5. The guiding unit 1 executes a relaxation guiding operation R1 corresponding to R1 (S33), and the data measuring unit 14 measures biological data of the measurement subject (S34). The data analysis unit 15 analyzes the biological data measured by the data measurement unit 14. (S35). The data measurement unit 14 stores the analysis result obtained by analyzing the biometric data as the biometric data analysis result A1 in association with the relaxation guidance operation R1 (S36). When n = end is not satisfied (No in S37), the central processing unit 300 adds 1 to n (S38) and operates the guiding unit 1 (S33).

  When n = end (Yes in S37), the action selection unit 16 compares the biological data analysis results An corresponding to the relaxation induction actions Rn (S39), for example, because the pulse rate tends to decrease significantly. The relaxation guidance operation Rn corresponding to the biological data analysis result An that most relaxes the measurement subject is selected as the relaxation guidance operation Ru effective for relaxing the measurement subject (S40). At this time, the operation selecting unit 16 may store the selected effective relaxation guiding operation Ru (S41).

  The operation selection unit 16 operates the induction unit 1 with the selected effective relaxation induction operation Ru (S42), the state determination unit 2 determines the relaxed state of the measurement subject (S43), and the function measurement unit 3 The cardiovascular function of the measurement subject is measured (S44). Note that the operation selection unit 16 may select, for example, an image that most relaxes the person to be measured among images displayed on the image display device 101 in the same relaxation guiding operation Rn. Moreover, the operation | movement selection part 16 may determine the operation | movement order of the different relaxation induction | guidance | derivation operation | movement Rn which relaxes a to-be-measured person, and may operate | move the guidance | induction part 1 in the determined operation | movement order. Thereby, since the operation | movement selection part 16 can operate the induction | guidance | derivation part 1 by the relaxation induction | guidance | derivation operation | movement Rn which makes a to-be-measured person most relaxed, it can guide a to-be-measured person to the relaxed state efficiently.

  FIG. 29 shows the configuration of the system 100 according to the twelfth embodiment of the present invention. The system 100 includes an improvement operation selection unit 17 (hereinafter referred to as an improvement selection unit). Based on the measurement result of the function measuring unit 3, the improvement selecting unit selects a relaxation induction operation that is effective for improving the cardiovascular function. The guiding unit 1 executes the relaxation guiding operation selected by the improvement selecting unit 17. For example, if the improvement selection unit 17 determines that “the blood circulation is bad” at a specific part of the measurement subject, the improvement selection unit 17 selects a relaxation guidance operation that causes the massage mechanism unit 103 of the guidance unit 1 to massage the part with poor blood circulation, and guides it. Let part 1 execute it.

  For example, if the improvement selection unit 17 determines that “the blood pressure is high” or “the blood vessel is hard”, stress may be considered as the cause thereof. Therefore, the relaxation selection operation for relaxing the measurement subject is selected, and this relaxation is performed. The guiding unit 1 is operated by the guiding operation. If the blood vessel is hard, it is considered that arteriosclerosis is related to peripheral vascular resistance and the blood flow volume of the peripheral artery is determined. Therefore, the improvement selection unit 17 performs blood flow at a site where the blood vessel is hard and the blood flow is reduced. A relaxation guidance operation that promotes the selection is selected, and the guidance unit 1 is caused to perform the selection. Thereby, the improvement selection part 17 selects the relaxation induction | guidance | derivation operation | movement which improves a to-be-measured person's circulatory function based on the measurement result of a circulatory organ function, By operating the induction | guidance | derivation part 1 by this relaxation induction | guidance | derivation operation | movement, Improving the cardiovascular function of the subject.

  FIG. 30 shows a configuration of the system 100 according to the thirteenth embodiment of the present invention. The function measurement unit 3 includes a pulse wave measurement unit 18 (hereinafter referred to as a measurement unit) and a pulse wave analysis unit 19 (hereinafter referred to as an analysis unit). The measurement unit 18 measures the pulse wave of the measurement subject, and the analysis unit 19 analyzes the pulse wave measured by the measurement unit 18. The function measuring unit 3 estimates the subject's cardiovascular function based on the analysis result of the analyzing unit 19. The measurement unit 18 can simultaneously measure blood pressure and blood vessel hardness by extracting and analyzing the pulse wave when the compression pressure of the cuff 301 attached to the upper arm of the measurement subject is changed. Further, the function measuring unit 3 can obtain information on blood vessels such as arteriosclerosis and blood circulation from a second derivative waveform called an acceleration pulse wave of the pulse wave collected by the pulse wave meter 201.

  FIG. 31 shows an outline of the acceleration pulse wave according to the thirteenth embodiment of the present invention. The analysis unit 19 secondarily differentiates the pulse wave measured by the measurement unit 18 to clarify and characterize a slight inflection point of the original waveform, and the features of the second-order differential waveform from a to e. Quantification is performed using the ratio of the wave heights (ha, hb, hc, hd, he) of the five peaks. Thereby, the function measurement part 3 estimates a to-be-measured person's circulatory function. FIG. 32 shows an outline of AI (Augmentation Index) in the thirteenth embodiment of the present invention. The measurement unit 18 measures a pulse wave index related to arteriosclerosis called AI with a pulse wave sensor installed in the radial artery or the carotid artery. Here, AI is the ratio of the systolic posterior component minus the systolic anterior component with respect to the pulse pressure. In FIG. 32, the ratio of ΔP obtained by subtracting the systolic posterior component P1 from the systolic posterior component P2 with respect to the pulse pressure PP. Or, it is a value obtained by calculating the ratio of P2 to P1. Further, it is an index that quantifies the ratio of the reflected wave to the driving pressure wave generated by blood ejection from the left ventricle. The analysis unit 19 analyzes the pulse wave measured by the measurement unit 18 because the AI has characteristics that increase due to aging, hypertension, arteriosclerosis, peripheral vasoconstriction, and the like.

  FIG. 33 shows an ankle brachial blood pressure measurement state in the thirteenth embodiment of the invention. The measurement unit 18 wears the cuff 105 on both the upper arm and both ankles of the measurement subject, so that the blood pressure, pulse wave velocity PWV (Pulse Wave Velocity), or ABI (Ankle-Brachial Index) To obtain an index related to cardiovascular function including arteriosclerosis. Here, when measuring ABI, it is necessary to make the heights of both arms, both legs, and the heart the same. If these heights are not the same, the height of the measurement site is detected and the blood pressure value is calculated. A correction mechanism is required. Thus, the function measuring unit 3 obtains a highly reliable and useful cardiovascular function measurement index by the analysis unit 19 analyzing the pulse wave, blood pressure, or arteriosclerosis degree measured by the measuring unit 18. Can do.

  In addition, this invention is not restricted to the structure of the said various embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, the information measurement unit 10 and the information analysis unit 11 of the state determination unit 2 use a variation coefficient, LF (low frequency component), HF (high frequency component), and LF / HF (component ratio) calculated from heartbeat variability. It may be. In addition, the measurement unit 18 and the analysis unit 19 of the function measurement unit 3 include pulse wave analysis such as pulse wave envelope analysis, electrocardiogram analysis, image diagnosis such as CT and MRI, IMT (Intima-Media Thickness), stiffness parameter β, and the like. It may be configured to use ultrasonic diagnosis or evaluation such as FMD (Flow-mediated dilation).

1 is a configuration diagram of the system according to a first embodiment of the present invention. 1 is a block diagram showing a configuration of the system 100. FIG. The block diagram which shows the structure of the state determination part 2. FIG. The block diagram which shows the structure of the function measurement part 3. FIG. Explanatory drawing which shows the time change of the pressure of the cuff 301. FIG. Explanatory drawing which shows the same pulse wave envelope. Explanatory drawing which shows the basic shape parameter of the pulse-wave envelope. The flow which shows operation | movement of the same system 100. The block diagram which shows the structure of this system 100 in the 2nd Embodiment of this invention. Explanatory drawing which shows the display screen of the state alerting | reporting part 4. FIG. The block diagram which shows the structure of this system 100 in the 3rd Embodiment of this invention. The flow which shows operation | movement of the same system 100. The block diagram which shows the structure of this system 100 in the 4th Embodiment of this invention. The flow which shows operation | movement of the same system 100. The block diagram which shows the structure of this system 100 in the 5th Embodiment of this invention. The flow which shows operation | movement of the same system 100. The block diagram which shows the structure of this system 100 in the 6th Embodiment of this invention. The flow which shows operation | movement of the same system 100. The block diagram which shows the modification of the same system 100. FIG. The block diagram which shows the structure of this system 100 in the 8th Embodiment of this invention. The flow which shows operation | movement of the same system 100. The block diagram which shows the structure of this system 100 in the 9th Embodiment of the same invention. The flow which shows operation | movement of the same system 100. The block diagram which shows the structure of this system 100 in the 10th Embodiment of the same invention. Explanatory drawing which shows the state which displayed the same relaxation degree. The flow which shows operation | movement of the same system 100. The block diagram which shows the structure of this system 100 in the 11th Embodiment of the same invention. The flow which shows operation | movement of the same system 100. The block diagram which shows the structure of this system 100 in the 12th Embodiment of this invention. The block diagram which shows the structure of this system 100 in the 13th Embodiment of this invention. Explanatory drawing which shows the outline | summary of the acceleration pulse wave. Explanatory drawing which shows the outline | summary of the same AI (Augmentation Index). Explanatory drawing which shows the measurement state of the same leg joint brachial blood pressure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Guidance part 2 State determination part 3 Function measurement part 4 State notification part 5 Start time control part 7 Reliability evaluation part 8 Reliability notification part 9 Operation time measurement part 10 Biological information measurement part 11 Biological information analysis part 12 Mental state determination part 13 Physical state determination unit 14 Biological data measurement unit 15 Biological data analysis unit 16 Guidance operation selection unit 17 Improvement operation selection unit 18 Pulse wave measurement unit 19 Pulse wave analysis unit 20 Measurement result correction unit 100 Cardiovascular function measurement system

Claims (13)

A guidance unit that gives the subject a stimulus that guides the subject to a relaxed state; and
A state determination unit for determining a relaxed state of the measurement subject;
A circulatory function measurement system, comprising: a function measurement unit that measures the circulatory function of the measurement subject when the state measurement unit determines that the measurement subject is in a relaxed state.   The cardiovascular function measurement system according to claim 1, further comprising a state notifying unit that notifies a determination result by the state determining unit.   The start time control part which controls the start time of the said function measurement part according to the relaxation state of the to-be-measured person determined by the said state determination part is further provided, The claim 1 characterized by the above-mentioned. Cardiovascular function measurement system.   The circulatory function measurement system according to any one of claims 1 to 3, further comprising a control unit that sets an operation content of the guidance unit according to a determination content by the state determination unit. The state determination unit determines a relaxed state of the measurement subject before or during measurement of the circulatory function by the function measurement unit,
Based on the determination result by the state determination unit, a reliability evaluation unit that evaluates the reliability of the measurement value by the function measurement unit,
The circulatory function measuring system according to any one of claims 1 to 4, further comprising a reliability notification unit that notifies the reliability evaluated by the reliability evaluation unit. The state determination unit determines the relaxed state of the measurement subject before the function measurement unit measures the circulatory function or measuring the circulatory function,
The measurement result correction unit for correcting the circulatory function measurement value measured by the function measurement unit based on the determination result by the state determination unit is further provided. The described cardiovascular function measurement system.   The said guidance | induction part guides a to-be-measured person mentally and physically to a relaxed state by performing several different relaxation induction | guidance | derivation operation | movement with respect to a to-be-measured person, The Claim 1 thru | or 6 characterized by the above-mentioned. The cardiovascular function measurement system according to any one of the above. The state determination unit includes an operation time measurement unit that measures an operation time of the guidance unit,
The circulatory function measuring system according to any one of claims 1 to 7, wherein the relaxed state of the measurement subject is determined based on the operating time of the guiding unit measured by the operating time measuring unit. The state determination unit includes a biological information measurement unit that measures biological information of the measurement subject,
A biological information analysis unit that analyzes the biological information measured by the biological information measurement unit,
The cardiovascular function measurement system according to any one of claims 1 to 8, wherein a relaxed state of the measurement subject is determined based on an analysis result by the biological information analysis unit. The state determination unit includes a mental state determination unit that determines a mental relaxation state,
The cardiovascular function measurement system according to any one of claims 1 to 9, further comprising a physical state determination unit that determines a physical relaxed state. The guidance unit sequentially performs a plurality of different relaxation guidance operations on the measurement subject,
A biological data measuring unit that measures biological data related to the measurement subject's living body for each relaxation guidance operation;
A biological data analysis unit for analyzing the biological data measured by the biological data measurement unit;
The cardiovascular function measurement according to any one of claims 1 to 10, further comprising a guidance operation selection unit that selects one relaxation guidance operation according to an analysis result by the biological data analysis unit. system. Further comprising an improvement operation selection unit for selecting a relaxation induction operation for improving the circulatory function based on a measurement result by the function measurement unit;
The cardiovascular function measurement system according to any one of claims 1 to 11, wherein the guide unit executes a relaxation guide operation selected by the improvement operation selection unit. The function measuring unit is a pulse wave measuring unit that measures the pulse wave of the measurement subject,
A pulse wave analysis unit for analyzing the pulse wave measured by the pulse wave measurement unit,
The circulatory function measurement system according to any one of claims 1 to 12, wherein the circulatory function of the measurement subject is estimated based on an analysis result by the pulse wave analysis unit.

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