JP2006034368A - Output method for biological information and biological information output device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biological information output device for displaying three kinds or more of pieces of biological information to be the indices of arterial diseases so as to clearly recognize each information and mutual relations. <P>SOLUTION: The biological information output device comprises an acquisition means for acquiring a blood vessel elasticity index value and first and second lower limb and upper limb blood pressure ratios, a layout means for laying out the blood vessel elasticity index value and the first and second lower limb and upper limb blood pressure ratio in a prescribed form, and an output means for outputting the result in layout by the layout means. The prescribed form is the form of outputting the blood vessel elasticity index value and the first and second lower limb and upper limb blood pressure ratios by using a two-dimensional graph having regions sectioned correspondingly to at least two values of the blood vessel elasticity index value and the first and second lower limb and upper limb blood pressure ratios. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a biometric information output method, and more particularly to a biometric information output method serving as an index of arterial disease.
The present invention also relates to a biological information output apparatus to which such a biological information output method is applied.

  Conventionally, as a measure of vascular diseases such as arteriosclerosis, the ratio of blood pressure measured in the lower limb and upper limb (lower limb upper limb blood pressure ratio), pulse wave velocity or pulse wave velocity (PWV) is generally used. ing. As the lower limb upper limb blood pressure ratio, for example, the ratio of systolic blood pressure measured with the upper arm and ankle (ABI), the ratio of systolic blood pressure measured with the upper arm and toes (TBI), etc. are known. Used as an indicator of presence or absence. On the other hand, PWV is the speed at which the wave generated when the blood vessel wall pressure derived from blood flow from the heart to the aorta travels through the artery is transmitted through the blood vessel wall, and the higher the speed, the harder the blood vessel. To do. PWV is obtained by measuring pulse waves at two points on a blood vessel and their propagation times, and dividing the distance between the two points by the propagation time.

  The lower limb upper limb blood pressure ratio may appear to be normal when arteriosclerosis is progressing throughout the body, and it has been proposed to use the lower limb upper limb blood pressure ratio as a more accurate index when used in combination with PWV. (For example, refer to Patent Document 1).

JP 2000-316821 A

  There is an increasing demand for obtaining an index indicating the presence or absence and degree of arterial disease based on non-invasive measurement, and various biological information is proposed in addition to the lower limb upper limb blood pressure ratio and PWV. Like the above-mentioned lower limb upper limb blood pressure ratio and PWV, it is considered that a more accurate measurement result can be grasped by comprehensively considering a plurality of pieces of biological information. However, when various types of biological information can be measured, it becomes difficult to make a comprehensive evaluation by correctly judging the meaning and mutual relationship represented by each biological information. In particular, it is difficult to immediately evaluate what the biological information means from three or more types of biological information.

The present invention has been made in view of such problems of the prior art, and the object thereof is to make it possible to clearly grasp three or more types of biological information serving as an index of arterial disease and the relationship between each piece of information. An object of the present invention is to provide a biometric information output method for display.
Another object of the present invention is to provide a biological information output apparatus to which the biological information output method according to the present invention is applied.

  That is, the gist of the present invention is that an acquisition means for acquiring a vascular elasticity index value and a first and second lower limb upper limb blood pressure ratio, a vascular elasticity index value, and a first and second lower limb upper limb blood pressure ratio. A biometric information output device having layout means for laying out in a predetermined style and output means for outputting a result of layout by the layout means, wherein the predetermined style includes a vascular elasticity index value, first and second A mode of outputting a vascular elasticity index value and a first and second lower limb upper limb blood pressure ratio using a two-dimensional graph having a region divided according to at least two values of the lower limb upper limb blood pressure ratio. It exists in the biometric information output device.

  Another aspect of the present invention includes an acquisition step of acquiring a vascular elasticity index value and a first and second lower limb upper limb blood pressure ratio, a vascular elasticity index value, and a first and second lower limb upper limb blood pressure ratio. A biometric information output method comprising: a layout step for laying out a predetermined style; and an output step for outputting a result of the layout step layout, wherein the predetermined style comprises a vascular elasticity index value, a first and a second The vascular elasticity index value and the first and second lower limb upper limb blood pressure ratios are output using a two-dimensional graph having a region divided according to at least two values of the two lower limb upper limb blood pressure ratios. A biological information output method characterized by

  Another gist of the present invention resides in a program that causes a computer to function as the biological information output apparatus of the present invention, or a computer-readable recording medium that stores this program.

  According to the present invention, with such a configuration, it is possible to display three or more types of biological information serving as an index of arterial disease so that the individual information and the mutual relationship can be clearly grasped.

Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings.
● (first embodiment)
(Device configuration)
FIG. 1 is a block diagram illustrating a configuration example of a biological information measuring apparatus as an example of a biological information output apparatus according to an embodiment of the present invention.
The arithmetic control unit 10 controls the overall operation of the biological information measuring apparatus of this embodiment. The arithmetic control unit 10 is a general-purpose computer device having, for example, a CPU, ROM, RAM (including non-volatile RAM), and various interfaces (not shown), for example, a large-capacity storage device such as a built-in or external hard disk, an optical disk, or a ROM When the CPU executes the control program stored in, various operations described below are executed and controlled. Of course, not all may be processed by software, and at least a part thereof may be realized by hardware.

  The arithmetic control unit 10 measures the systolic blood pressure Ps in the upper arm, ankle, and footpad from the pulse wave information obtained from the upper limb blood pressure control unit 201 and the lower limb blood pressure control unit 202, and based on the result, the ABI (right Alternatively, the left ankle systolic blood pressure value and the upper arm (representative) blood pressure value) and TBI (the ratio of the right or left footpad systolic blood pressure value to the upper arm (representative) blood pressure value) are obtained. The arithmetic control unit 10 also obtains the diastolic blood pressure Pd and the average blood pressure Pm.

  The arithmetic control unit 10 further detects a pulse wave signal supplied from the upper limb blood pressure control unit 201 and the lower limb blood pressure control unit 202 (if necessary, a heart sound signal or an electrocardiogram signal supplied from the heart sound detection unit 203 An electrocardiogram signal supplied from the unit 204 and a carotid artery wave, a hip artery wave, a popliteal artery wave, etc. supplied from the pulse wave detection unit 205 may be selectively used) and the blood vessel length between the measurement sites ( The pulse wave velocity between the heart (aortic valve opening) -ankle or heart-toe is calculated using the previously obtained blood vessel length equivalent value.

  And the arithmetic control part 10 calculates | requires the biometric information (it calls a vascular elasticity index | exponent) showing vascular elasticity based on either of the formulas 1-5 shown in FIG. 2, for example. Note that it is possible to arbitrarily determine whether the left side formula or the right side formula (the square root of the left side formula) is used among the formulas 1 to 5 in FIG.

  The upper limb blood pressure control unit 201 and the lower limb blood pressure control unit 202 are respectively connected to two cuffs connected via the hoses 21h and 22h using a pump, an exhaust valve, or the like (not shown) according to the control of the arithmetic control unit 10. 21R, L, and 22R, L rubber sac (21aR, 21aL, 22aR, 22aL) is pressurized / depressurized (blood-driven). The upper limb blood pressure control unit 201 and the lower limb blood pressure control unit 202 are also provided with sensors for detecting pulse waves propagating through the hoses 21h and 22h, such as pressure sensors (211R, L and 221R, L). The pulse wave propagating through the rubber sac and the hose is converted into an electric signal and output to the arithmetic control unit 10. Although FIG. 1 shows a configuration in which the upper limb blood pressure control unit 201 and the lower limb blood pressure control unit 202 are provided independently, they may be integrated.

  The heart sound detection unit 203 supplies the heart sound signal of the subject detected using the heart sound microphone 23 to the arithmetic control unit 10. The heart sound signal is mainly used to determine the start time of the pulse wave in the heart.

  The electrocardiogram signal detection unit 204 acquires an electrocardiogram signal detected by the electrocardiogram electrodes 24 a and 24 b and supplies it to the arithmetic control unit 10. The electrocardiogram signal is acquired as necessary when performing a more comprehensive diagnosis.

  The pulse wave detection unit 205 supplies the pulse wave detected by the pulse wave sensors 25 a and 25 b, specifically, the carotid artery wave, the hip artery wave, and the popliteal artery wave to the calculation control unit 10.

  The arithmetic control unit 10 also stores a display unit 70 that can display various operation guidance, measurement results, and diagnostic indicators, a recording unit 75 that can record and output measurement results and diagnostic indicators, a measurement result, and diagnostic indicators, for example, A storage unit 80 composed of a hard disk drive, a writable optical disk drive, a nonvolatile semiconductor memory, etc., a voice generation unit 85 capable of outputting voice guidance output and various notification sounds, a keyboard, a mouse, a button, a touch panel, etc. An input / instruction unit 90 that enables input and instruction is connected.

  In addition to this, a wired and / or wireless communication interface for communicating with other devices, a storage device using removable media, and the like may be provided. Further, the display unit 70 and the recording unit 75 may be separately connectable to the outside. That is, apart from the display unit 70 and the recording unit 75 built in the apparatus main body, an external display device having a larger display area and / or a larger display color, or an external recording device having a larger print area and / or a larger print color. May be connectable. Thereby, the miniaturization of the main body and the diversity of output can be realized at the same time. In this case, a known display interface and printer interface may be provided.

(Measurement process: Preparation before measurement)
A procedure and operation when performing measurement using the biological information output apparatus having such a configuration will be described. Here, a case where measurement with the highest accuracy is performed will be described. It is assumed that initial setting processing relating to device operation such as time setting is performed in advance. In addition, in the following, for ease of explanation and understanding, measurement using one upper limb and one lower limb out of two pairs of cuffs will be described, but it is of course possible to perform measurement using all four cuffs. Is possible.

  First, as a preparation stage, a cuff, a sensor, and the like are attached to the subject. Specifically, the upper limb cuff 21R is attached to the subject's upper right arm, and the lower limb cuff 22R is attached to the subject's ankle or toe. The cuff attached to the ankle and the cuff attached to the toe are different in configuration, but here both will be described as the lower limb cuff 22R. The cuffs 21 and 22 can be attached with a hook-and-loop fastener or the like. Further, the electrocardiographic electrodes 24a and 24b are attached to the left and right wrists, for example. A cream or the like is applied to the mounting site as is usually done for good detection. The attachment site of the electrocardiographic electrode can be changed according to the type of guidance to be acquired.

  The heart sound microphone 23 is attached to a predetermined chest position (second II intercostal sternum edge) of the subject with tape or the like. Further, a pulse wave sensor 25a is attached to the neck carotid artery pulsation site. Further, a pulse wave sensor 25b for the hip artery is attached to the buttocks as necessary.

  Next, the personal information of the age, sex, height, and weight of the subject is input using the input / instruction unit 90. Further, the blood vessel lengths to the II intercostal sternum margin and the cuff 21R and the cuff 22R attachment site are respectively measured by a scale or the like (or converted from the measured value) and input. This completes the preparation before measurement.

(Measurement processing: ABI measurement)
When preparation for measurement is completed and, for example, a measurement start instruction is given from the input / instruction unit 90, the arithmetic control unit 10 first starts blood pressure measurement processing to measure ABI. The order can be arbitrarily set, but first, the upper limb blood pressure control unit 201 is instructed to start pressurizing the upper right arm cuff 21R.

  The blood extremity control unit 201 for the upper limbs sends air to the cuff 21R to inflate the rubber sac 21aR. At the same time, a pulse wave propagates as a pressure wave of air from the rubber sac 21aR through the hose 21h and is detected by the pressure sensor 211R, and this pulse wave is converted into an electric signal (generally, the pressure sensor itself converts the pressure into electric pressure). Converted into a signal and output), and output to the arithmetic control unit 10 as a pulse wave signal obtained from the cuff 21R.

  The arithmetic control unit 10 causes air to be sent to the rubber sac 21aR by the upper limb blood pressure driving control unit 201 until no pulse wave is detected by the pressure sensor 211R, that is, until blood pressure is generated, and when the pulse wave is not detected. Stop pressurization. The cuff pressure at this time can be detected by the pressure sensor 211R. Then, the upper limb blood pressure control unit 201 is instructed to gradually decrease the cuff pressure.

  The upper limb blood-feeding control unit 201 adjusts an exhaust valve (not shown) to release air from the rubber sac 21aR, thereby reducing the cuff at a constant rate. In the process of decompression, the pulse wave begins to be detected again, and then contracts from the cuff pressure at the point where the pulse wave suddenly increases, the point where the maximum amplitude of the pulse wave is obtained, and the point where the pulse wave sharply decreases The systolic blood pressure Ps, the average blood pressure Pm, and the diastolic blood pressure Pd are obtained. The cuff pressure can be calculated using the value at the start of decompression, the decompression rate, and the decompression time. Such a blood pressure measurement method is known as an oscillometric method (volume pulse vibration method). When the diastolic blood pressure is obtained, the cuff is depressurized at once. Such blood pressure measurement processing is similarly performed on the remaining cuffs, and the blood pressure measurement of the upper limbs and the lower limbs is completed.

From the obtained blood pressure, the arithmetic control unit 10 obtains ABI as follows, for example.
ABI = right ankle systolic blood pressure value / right upper arm blood pressure value The measured systolic blood pressure value, average blood pressure value, diastolic blood pressure value, and calculated ABI are stored in the storage unit 80, respectively.

(Measurement process: TBI measurement)
The lower limb measurement cuff 22R is attached to the toes (for example, the right toe), and TBI is measured and calculated in the same manner as ABI. The calculated TBI is stored in the storage unit 80.

(Measurement processing: PWV measurement)
Next, the process moves to the PWV measurement process. When the carotid artery wave is detected using the pulse wave sensor 25 a, the arithmetic control unit 10 acquires these pulse waves via the pulse wave detection unit 205 and from the heart sound signal acquired via the heart sound detection unit 203. Then, the generation of a heart sound (for example, II sound) corresponding to the rise of the pulse wave is detected. Each of the pulse wave and the heart sound signal is subjected to appropriate processing such as A / D conversion and stored in the storage unit 80. And PWV is calculated | required as follows.
PWV = AF / (t + tc)
here,
AF: Blood vessel length from the second intercostal sternum edge to the cuff 22R attachment site (ankle or toe) t: Time difference from the rising of the carotid artery wave (or brachial pulse wave) to the rising of the ankle (or toe) pulse wave tc: Time difference from the rise of the heart sound II sound to the carotid artery wave (or brachial pulse wave) notch point.

When the pulse wave sensor 25a is not used, the PWV is measured using the rising point of the pulse wave measured by the cuff 21R attached to the upper arm.
When the PWV measurement is completed, the arithmetic control unit 10 releases the cuff by the upper limb blood pressure control unit 201 and the lower limb blood pressure control unit 202, stores the measurement result in the storage unit 80, and ends the measurement process.

  As described above, the case where only the blood pressure and pulse wave measurement is performed on the upper right arm, the right ankle, and the right footpad has been described here, but the blood pressure and pulse are similarly applied to the left upper arm, the left ankle, and the left footpad. It is also possible to perform wave measurements. Also, PWV may be calculated for both the heart-ankle and the heart-toe, or may be calculated for each of the left and right sides.

(Calculation of vascular elasticity index)
Next, the arithmetic control unit 10 calculates a vascular elasticity index. As the vascular elasticity index, for example, values obtained by equations 1 to 5 shown in FIG. 2 can be used. In Expressions 1 to 5, k is a constant. Which formula is used to calculate the vascular elasticity index is determined in advance. Of course, it is possible to calculate two or more equations.

  The blood pressure values Ps, Pm, and Pd used in Equations 1 to 5 are ideally the blood pressure values at the center point of the section in which PWV is measured, but it is possible to substitute the measured values with the upper arm, for example. It is. The blood pressure value at the central point can be estimated from, for example, a blood pressure measured at a site where a pulse wave is measured in order to calculate PWV, and the measured value and a previously calculated conversion formula. Specifically, from the systematic body blood pressure distribution characteristics as shown in FIG. 5 and the values measured at the two positions shown in the characteristic chart, the blood pressure value of the part existing between the measurement points is estimated. Is possible.

The estimation is performed using the fact that the systemic body blood pressure distribution characteristic linearly increases or decreases in both Ps and Pd from the aortic valve opening to the popliteal region, and Pm is almost constant in all sections. Specifically, for example, when estimating the systolic blood pressure Psi at the buttocks from the systolic blood pressure Ps at the ankle and the systolic blood pressure Psb at the upper arm,
(Ps-Psb): (distance of ankle-upper arm) = (Psi-Psb): (distance of buttock-upper arm)
Psi can be estimated from the relational expression. Similarly, Pdi can be estimated from Pd and Pdb.
The PWV used for calculating the vascular elasticity index may be the result of measurement using either the heart-ankle or the heart-footpad.

  Note that it is preferable to store various measured biological information and calculated values such as ABI, TBI, PWV, and vascular elasticity index in association with the personal information of the subject and the measurement date and time. For example, it is possible to create a folder or directory for each subject and create a folder or directory for each measurement in the subject's folder or directory each time measurement is performed, and save the acquired waveform information etc. is there.

  In the present embodiment, since the biological information measurement device also serves as the biological information output device, the measurement processing of ABI, TBI, and PWV and the calculation processing of the vascular elasticity index have been described. However, the biometric information output device according to the present invention can measure at least ABI, TBI, and PWV from the above-mentioned information acquired in advance by the biometric information measuring device, as long as it can output a report in the format described below. A mechanism for processing is unnecessary, and in some cases, a mechanism for calculating blood vessel elasticity index is also unnecessary.

  A biometric information output device that performs report output in the format described below can be realized by mounting and executing software for performing the following report output on a computer device commercially available as a personal computer, for example. is there. Also in this case, the report output may be performed on either a display built in or externally attached to the computer apparatus, or a printer connected directly or indirectly.

(Report output processing)
Next, report output processing in the above-described biological information output apparatus will be described with reference to the flowchart of FIG. Here, the description will be made assuming that the data is output by the recording unit 75, but it may be output not only to the display unit 70 but also to an external display device or an external output device as described above.

  The report output process may be performed automatically after the measurement is completed, or a list of subjects that have been measured in the past and stored in the storage unit 80 is displayed on the display unit 70 as a list, for example, and an input / instruction unit is displayed from the list. It is also possible to output the measurement result for the subject selected by 90. Here, it is assumed that a measurement result for a subject selected from a list of subjects who have measured in the past is output.

  First, the arithmetic control unit 10 reads out the personal information and measurement results of the selected subject from the storage unit 80 (step S101). Then, the read information is laid out in an output format described later (step S103).

  When the layout is completed, the output destination, for example, a format that can be output by the recording unit 75 is converted (step S105). This format conversion includes, for example, resolution conversion according to the output destination (72 or 96 dpi for display, 400 to 600 dpi for printing, etc.), color conversion (conversion to monochrome, increase / decrease in the number of colors, etc.) , Reduction / enlargement, expansion to a bitmap, and the like. When the conversion into a format suitable for the output destination is completed, the converted data is output as report data to the output destination (step S107) and displayed or printed.

  In addition, when the pre-measured data is placed in a state where the biometric information output device can be acquired via a network or a removable storage medium, a report is output by a biometric information output device that does not have a biometric information measurement function. Also, the output can be performed by the same processing. That is, the biometric information output device first acquires measurement data list information (subject name list, etc.) and displays it on the display. Then, after a subject is selected via an input device such as a keyboard and a mouse, the same processing as in steps S101 to S105 described above is performed, and the result is output to a preset output destination such as a display or a printer (step). S107). As a result, a similar report is displayed or printed.

(Report format)
FIG. 3 is a diagram illustrating an example of a report output by the biological information output apparatus according to the present embodiment. The report displays the vascular elasticity index, ABI, and TBI so that the individual values and their changes with time, and the state of the blood vessels estimated from the correlation between ABI or TBI and the vascular elasticity index can be discriminated at a glance.

The report has a shape of a two-dimensional graph having orthogonal axes, where the vertical axis indicates the vascular elasticity index and the horizontal axis indicates the values of ABI and TBI. The entire graph is divided into a plurality of regions according to the values on the vertical axis and the horizontal axis.
In this embodiment, since the classification is expressed by color (color classification), it will be described as color classification in the following description. However, the color classification is an example of the classification, as well as the color shading and the density of the mesh, Any method may be used as long as it can be recognized that the area is divided, for example, a frame of the area is indicated by a line.

The color-coding criteria for regions and the blood vessel states that can be considered when measurement values are included in the respective regions are shown below.
First, regarding the vascular elasticity index,
(1) Vascular elasticity index ≧ 10.0: severe arteriosclerosis (2) 9.0 ≦ vascular elasticity index <10: advanced arteriosclerosis (3) 8.0 ≦ vascular elasticity index <9: moderate arteriosclerosis (4) Vascular elasticity index <8: Divided into normal regions. In the example of FIG. 3, since both (1) and (2) indicate a heavy state, they are the same color, but may of course be color-coded.

Further, the region (4) where the vascular elasticity index is normal is further divided into the following regions according to the value of ABI.
(4-1) ABI ≧ 1.3: Suspected of calcification (4-2) 1.0 ≦ ABI <1.3: Normal (4-3) 0.9 ≦ ABI <1.0: Boundary area ( 4-4) ABI <0.9: Suspected of stenosis or occlusion In addition, (4-4) is 0.6 or more and less than 0.9 because the normal region of TBI is TBI ≧ 0.6 Color coding is performed on the area and the area of less than 0.6.

  In FIG. 3, the black circle is the right ABI, the gray circle is the left ABI, the black triangle is the right TBI, and the gray triangle is the left TBI. In addition, circle numbers 1 to 3 indicate changes with time of each measured value, and the larger the number, the newer the measured value.

  In the example of FIG. 3, ABI and vascular elasticity index were in a normal state at the time of the first measurement, but the subsequent measurement values are in the normal region or the boundary region as ABI, but are viewed from the vascular elasticity index. Suggests that there is a risk of moderate or severe arteriosclerosis.

  In addition, regarding TBI, it is possible to grasp the interrelationship between the change in the value with time and the vascular elasticity index. Furthermore, by outputting simultaneously with ABI, it is possible to grasp the mutual relationship with ABI.

  In this way, the values of the vascular elasticity index and the suggested meaning are classified, and the normal value region of the vascular elasticity index is subdivided according to the value of ABI and output in the form of FIG. It is possible to grasp the meaning suggested by the values of the vascular elasticity index, ABI, and TBI alone only by looking in which region the value is included, and the vascular elasticity index, the ABI value, the vascular elasticity index, and Based on the value of TBI and the correlation between the values of ABI and TBI, comprehensive evaluation such as obstructive arteriosclerosis can be easily performed.

● (Second Embodiment)
Next, a biological information output apparatus according to the second embodiment of the present invention will be described. Except for the format of the report to be output, it may be the same as that of the first embodiment, so only the report output format characteristic of this embodiment will be described.

FIG. 4 is a diagram showing a format of a report output by the biological information output apparatus of the present embodiment. This embodiment has a two-dimensional graph format in which the vertical axis is TBI and the horizontal axis is ABI, and is divided according to the values of ABI and TBI. The symbols plotted on the coordinates corresponding to the measured values of TBI and ABI are colored according to the corresponding vascular elasticity index so that the TBI, ABI and vascular elasticity index can be grasped at a time.
In the present embodiment, as in the first embodiment, the classification is expressed by color (color classification). Therefore, description will be given below as color classification. However, the color classification is an example of the classification, and color shading or halftone Any method may be used as long as it is possible to recognize that the region is divided, such as expressing the frame of the region with a line as well as the density.

In FIG. 4, the two-dimensional region formed by the vertical axis and the horizontal axis is color-coded according to the blood vessel state assumed from the values of ABI and TBI. The color-coding criteria for regions and the blood vessel states that can be considered when measurement values are included in the respective regions are shown below.
First, for the region of TBI ≧ 0.6 (TBI normal region)
(1) ABI <0.9: Suspected stenosis or obstruction in the lower limbs (2) 0.9 ≦ ABI <1.0: Boundary zone (3) 1.0 ≦ ABI <1.3: Normal (4) ABI ≧ 1.3: Hypertension

In addition, for a region of TBI <0.6 (region suspected of stenosis or occlusion) (5) ABI ≧ 1.3: arterial calcification There is suspected stenosis or occlusion in the peripheral artery (6) 0.9 ≦ ABI < 1.3: Suspected stenosis or obstruction on the distal side of the ankle 1
(7) ABI <0.9: Suspected of stenosis or occlusion on the distal side from the ankle joint 2
Areas (6) and (7) are areas suggesting that stenosis or occlusion is suspected on the distal side from the ankle joint, but area (6) is a boundary area (ABI alone) Since it includes 0.9 ≦ ABI <1.0) or normal range (1.0 ≦ ABI <1.3), it is color-coded from the region (7) where stenosis or occlusion is suspected in both ABI and TBI. ing.

Further, in the present embodiment, when plotting the measured values of ABI and TBI in the color-coded regions as described above, the notation according to the value of the vascular elasticity index is used, so that the vascular elasticity index is added to ABI and TBI. Are also output.
Specifically, it is divided into four stages as in the first embodiment,
Vascular elasticity index ≧ 10.0: Red (severe arteriosclerosis)
9.0 ≦ vascular elasticity index <10: orange (high degree of arteriosclerosis)
8.0 ≦ vascular elasticity index <9: yellow (moderate arteriosclerosis)
Vascular elasticity index <8: Green (normal)
When plotting ABI and TBI, the marks having these colors are plotted according to the measured values of the corresponding vascular elasticity index. In addition to color coding, the vascular elasticity index value can be changed stepwise in any form that can visually distinguish the difference, including changing the shape of the mark or, for example, blinking or changing the brightness. It is possible to show.

  For example, in the example of FIG. 4, the left ABI-left TBI (left foot) plotted with the ● mark and the right ABI-right TBI (right foot) mark plotted with the ▲ mark are the values indicated by the circled number 1 at the first measurement. ) In green (normal range), yellow in the next measurement, orange in the latest measurement (circle numeral 3), and is still in the normal range when viewed from ABI and TBI. It can be understood that the elasticity index is gradually getting worse and moderate to high arteriosclerosis is suspected.

  Although not shown in FIG. 4, in addition to the stepwise display by the color of the mark, the value of the vascular elasticity index may be output next to the mark. Thereby, it becomes possible to know a specific measurement value, and a more accurate evaluation becomes possible.

  As described above, the biological information output apparatus according to the present embodiment color-codes the region according to the blood vessel state suggested from the values of ABI and TBI, and the measured values of ABI and TBI are represented according to the blood vessel elasticity index. Plot using the method. Therefore, not only the values of ABI and TBI alone, but also the state of the blood vessel suggested from the relationship between ABI and TBI can be easily grasped only by looking in which region the measurement value is included. Furthermore, since it is possible to simultaneously and easily grasp what vascular state is suggested from the vascular elasticity index, occlusion based on the correlation between measured values of ABI, TBI and vascular elasticity index Comprehensive evaluation such as atherosclerosis can be easily performed.

  Note that the report output processing in each of the above-described embodiments is a computer device that reads out these values from a storage device in which, for example, pre-measured ABI, TBI, and vascular elasticity index values are stored, and outputs a report of the above-described format Can also be executed. Therefore, it goes without saying that a program for causing a computer apparatus to execute the report output processing in each of the above-described embodiments, or a computer-readable recording pair tie storing this program also constitutes the present invention.

It is a block diagram showing an example of composition of a living body information measuring device as an example of a living body information output device concerning an embodiment of the present invention. It is a figure which shows the example of the calculation formula of the vascular elasticity index which the biological information output device which concerns on embodiment calculates | requires. It is a figure explaining the format of the report which the biometric information output device which concerns on 1st Embodiment outputs. It is a figure explaining the format of the report which the biometric information output device which concerns on 2nd Embodiment outputs. It is a figure which shows the systematic body blood pressure distribution characteristic used when estimating the blood-pressure value used when the biometric information output apparatus which concerns on embodiment calculates | requires a vascular elasticity index. It is a flowchart explaining the report output process in the biometric information output device which concerns on embodiment of this invention.

Claims (8)

An acquisition means for acquiring a vascular elasticity index value and a first and second lower limb upper limb blood pressure ratio;
Layout means for laying out the vascular elasticity index value and the first and second lower limb upper limb blood pressure ratio in a predetermined manner;
A biometric information output device having output means for outputting a result of layout by the layout means,
The predetermined form is
Using the two-dimensional graph having a region divided according to at least two values of the vascular elasticity index value and the first and second lower limb upper limb blood pressure ratio, the vascular elasticity index value, A biological information output device characterized in that it is a mode for outputting a lower limb upper limb blood pressure ratio.   The predetermined form is one in which the vascular elasticity index value is taken on one axis of the two-dimensional graph, and the blood pressure ratio of the first and second lower limbs is taken on the other axis. The biological information output device according to 1.   For the region where the vascular elasticity index value is not normal, only the classification according to the value of the vascular elasticity index value is performed, and for the region representing the normal region of the vascular elasticity index value, the first and second lower limb upper limb blood pressure ratios. The biometric information output device according to claim 2, wherein the biometric information output device is classified according to the value of.   In the predetermined mode, the first lower limb upper limb blood pressure ratio is taken on one axis of the two-dimensional graph, the second lower limb upper limb blood pressure ratio is taken on the other axis, and the vascular elasticity index value is obtained. The biological information output device according to claim 1, wherein the blood pressure ratio is expressed by a notation method used when plotting the blood pressure ratio of the second lower limb upper limb on the two-dimensional graph.   The biological information output device according to claim 4, wherein the division is performed based on a value of the first lower limb upper limb blood pressure ratio and the second lower limb upper limb blood pressure ratio.   The vascular elasticity index value is divided into a plurality of stages according to the value, and the upper and lower limb blood pressure ratios of the first and second lower limbs are plotted by marks having different forms at each stage. The biological information output device according to claim 4 or 5.   The biometric information output device according to any one of claims 1 to 6, wherein the layout unit performs the layout for a plurality of time-series measurement results for the same subject. Obtaining the vascular elasticity index value and the first and second lower limb upper limb blood pressure ratio;
A layout step of laying out the vascular elasticity index value and the first and second lower limb upper limb blood pressure ratio in a predetermined manner;
A biometric information output method comprising: an output step of outputting a result of layout by the layout step,
The predetermined form is
Using the two-dimensional graph having a region divided according to at least two values of the vascular elasticity index value and the first and second lower limb upper limb blood pressure ratio, the vascular elasticity index value, A biometric information output method characterized by being in a mode of outputting a lower limb upper limb blood pressure ratio.