JP3414378B2 - Health management guideline advice device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] [0001] The present invention relates to the identification of a subject.
Information and body impedance measurement information,
Calculate fat percentage, body fat percentage, water content, basal metabolism,
Health that presents guideline information for health management based on the calculation results
It relates to a management guideline advice device. [0002] 2. Description of the Related Art Conventionally, in order to measure body fat,
A four-electrode in-vivo impedance measurement method is known. This
Fig.14As shown in
The main device 1 is connected to the main device 1 by a lead wire 6.
A pair of electrodes 2, 3 for applying a high-frequency signal to be applied;
A device equipped with a pair of electrodes 4 and 5 for measuring body resistance potential
Using the subject lying on the bedFifteenRight as shown
Attach electrodes 2 and 3 to the hand and right foot, and
The right hand and right foot of the
Attach the poles 4 and 5, and make the electrodes 2 and 3 higher in circumference from the main unit 1.
A wave signal is applied to energize the subject, and the voltage between the electrodes 4 and 5 is applied.
The potential difference is measured, and from the measured potential difference and the supplied current,
This is for obtaining the bioimpedance of the subject. [0003] The above-described conventional four-electrode
Of body fat percentage using the in-body impedance measurement method
The device has the following problems. [0004] Sufficient measurement by eliminating energization path change errors
In order to obtain accuracy, the measurement position should be in the lying position, and contact between both feet
To prevent contact between both hands and the torso.
I needed to. Restriction of the subject and wearing of electrodes
・ Special operations are required separately due to complicated operations.
Was. It is not suitable for home use because it cannot be operated by the subject
You. This device is for business use that processes a large number of subjects.
Large key input / display, printer and A
Equipped with a C power supply, etc., large and inconvenient to handle
It has become. For multiple electrodes with extension cables
Preparation and cleanup are more troublesome. Limbs for attaching electrodes
Keratin cream is applied to the site in the same way as when the electrodes of the electrocardiograph are attached.
It is necessary to apply a conductive agent such as
was there. [0005] Further, impedance measurement
When estimating body fat, the body
Although impedance information is important,
The impedance of the hands and feet is much higher than that of the torso
And the impedance at the joints is particularly large
People with thin limbs, thick bones and small joints
Different forces can have a dramatic effect on measurement results.
found. For example, impedance measurement of each part of the body
As a result example,     For men with thick limbs: 350Ω between right hand / right foot, 150Ω on right arm                           Right foot 130Ω, body 70Ω     For women with thin limbs: 675Ω between right hand / right foot, 360Ω right arm                           Right foot 240Ω, body 75Ω     Wrist joint: about 25 to 50Ω The present invention has been made in view of the above problems.
The subject's own impedance between the hands and feet
Can be set, and is less affected by the impedance of the foot,
Small, lightweight, inexpensive and with good measurement accuracy, for individuals and households
Provide a health management guideline advice device that can also be used
And for the purpose. [0007] [Means for Solving the Problems] The health care guideline of the present invention
The advice device uses a high-frequency signal
And a body conduction path for applying the applied signal.
A second electrical device for measuring body resistance potential
The second pair of electrodes is formed by energization between the pole pair and the first pair of electrodes.
The body internal impedance is measured by measuring the body resistance potential of the electrode pair.
Means to measure the body weight and input
Means, the impedance value and the body specific information
Based on body fat, lean mass, body fat percentage, water content,
Means for extracting health assessment data such as basic metabolic rate
In thingsPreviousAt least one electrode of the first electrode pair;
veryA high-frequency application electrode for hand, The second electrode pair
At least one electrode ofBody resistance potential measurement for hands
And an electrode forThe grip, and it for left foot and right foot
EachSaidOne electrode of a first electrode pairHigh frequency for feet
Electrodes for applicationOne electrode of the second electrode pairBody potential
Measurement electrodeAnd a foot electrode portion provided with
And right footFor high frequency applicationElectrically common connection between electrodes
AndAnd electrodes for measuring body resistance potential for the left foot and the right foot
Electrically connected between them, for applying high frequency for the hand
High-frequency signal is applied between the electrode and the foot high-frequency application electrode
The body potential measurement electrode for the hand and the potential measurement for the foot
Between electrodesThe impedance is measured. In this health management guideline advice device, the left
The foot and right foot electrodes are electrically connected in common
And for measuring body fatInHalve and limb impedance halved
The impedance accuracy of the fuselage.
I can do it. [0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The light will be described in more detail. FIG. 1 is a premise of an embodiment of the present invention.
1 is an external perspective view of a health management guideline advice device. This
The health management guideline advice device is composed of a main device 10 and a
Unit electrode unit 50, the main unit 10 and the foot electrode unit.
And a cable 51 connecting the cables 50. The main body device 10 includes a main body 11 and the main body 11.
Left-hand grips integrally formed on both left and right ends of the part 11
Grip (grip) 12 and right hand grip (grip) 13
It is composed of In addition, an electric
Source switch 14, start instruction and subject's physical characteristics
A key switch 15 for inputting a certain height, weight, etc.
Indication for displaying measurement results and advice information
A part 16 is provided. The display unit 16 displays a left-hand group.
The center between the lip part 12 and the right hand grip 13 is almost at the center
It is arranged to become. Left hand grip 12, Right hand grip
13 are vertical and almost cylindrical, and each surface has
Denotes electrodes 17 and 18 for applying a high-frequency signal and resistance potential measurement
Electrodes 19 and 20 are provided. These electrodes 1
7, 18 and electrodes 19, 20 are not shown in FIG.
Are electrically connected to the circuit section in the main body 11. The foot electrode portion 50 has a substantially rectangular flat plate shape.
The positioning part 53 for the left foot and the right foot
The positioning part 54 is disposed, and the two-foot positioning part 5 is further provided.
Reference numerals 3 and 54 denote electrodes 55 for applying a high-frequency signal,
56 and electrodes 57 and 58 for measuring the resistance potential are provided.
You. Further, a housing part is provided at the upper end of the front part of the sheet material part 52.
A housing 59 is provided with a measuring state module.
An indicator 60 for the monitor is provided. Further seat section
A through hole 61 is formed in front of the material 52 between the two leg positioning portions.
ing. The sheet member 52 is shown in the sectional view of FIG.
As shown in FIG.
You. The material of these sheets 62 and 63 is PV
C, PET, polyethyl and the like are used. Also, foot position
In the area corresponding to the arch of the deciding sections 53 and 54, the sheet
Resilient protrusions 64, 65 are formed from member 52.
The protruding portions 64 and 65 are respectively provided with the electrodes 5 described above.
5, 56, 57, 58 are provided. In FIG. 3, right
The cross-sectional structure of the foot positioning part is shown, but for the left foot
The same applies to the sectional structure of the positioning portion. Protruding like this
The parts 64 and 65 are provided, and the electrodes are formed here.
When the subject's feet are placed on both feet positioning portions 53 and 54,
This is to ensure that the electrodes are in contact with each other
You. As an elastic sheet material forming the protrusions 64 and 65
For example, silicon rubber is used. Housing part 5
ABS, PVC, etc. are used as the material constituting
Have been. The cable 51 has connectors 66 and 6 at both ends.
7 and the main unit 10 and the foot electrode unit 50 are detachable.
Connect to Using this health management guideline advice device
When measuring the bioimpedance of the subject,
As shown in FIG. 2, the subject A puts both feet on the foot electrodes.
Placed on the foot positioning portions 53 and 54 of the portion 50,
Hold the grip section 12 of the main body device 10 with the left hand,
3 with the right hand, raise both hands horizontally forward,
The measurement is started with 0 kept at shoulder height. FIG. 4 is a circuit diagram of the main unit 11 of the main unit 10.
FIG. 3 is a block diagram illustrating a configuration. The internal control of the health management guideline advice device
The road has a frequency f₀Generating a constant current high frequency signal
The signal generator 21 (10 ≦ f₀≦ 100KHZ) and electrode
A differential amplifier 22 receiving potential signals from 19 and 20;
Frequency f₀Bandpass filter to cut signals other than
A filter 23 and a demodulation circuit 24 for demodulating high frequency signal components.
And A / D conversion for converting an analog signal to a digital signal
Unit 25, ROM 26, RAM 27, and A / D converter
25, and the height and weight from the data input unit 15,
Import data such as age, gender, date and time, and impedance
Extraction of measurement processing calculation and health management guideline advice information
CPU 28 for executing a process to perform
The measurement result to a printer or the like by communication.
The measurement result output unit 30 to be input, the battery 31 for the power supply,
In addition, the input of the high-frequency signal generator 21 and the differential amplifier 22
The electrodes 17, 18, 19, 2 of the grip portions 12, 13
0, via connector 66, cable 51, connector 67
Electrodes 53, 55, 56, 5 of the foot electrode section 50
7, 58 can be selectively switched for connection or short connection
And an electrode signal switching unit 32 for disconnecting and opening.
You. Switching of the electrode signal switching unit 32 is performed by an analog switch.
Or, it is performed by a relay etc.
According to the measurement mode setting of the CPU 28, the CPU 28
It is determined by the corresponding switch control signal.
You. FIG. 5 shows an electrode signal switching unit 32 which is a two-handed
Connection when set to impedance measurement mode between feet
It is an example. In this case, the high-frequency signal marks for the left and right hands
The additional electrodes 17 and 18 are short-circuited, and the
0 high-frequency signal application electrodes 55 and 56 are short-circuited,
A high-frequency signal is applied between the electrodes 17 and 18 and the electrodes 55 and 56 for feet.
The signal generator 21 is connected. Also, for left hand and right hand
The resistance potential measuring electrodes 19 and 20 are short-circuited, and
The resistance potential measuring electrodes 57 and 58 for the foot and the right foot are short-circuited.
And connected to the input of the differential amplifier 21. Next, the health management guideline advice device
The measurement operation will be described with reference to the flowcharts shown in FIGS.
You. When the power switch 14 is turned on, the RAM
Initialization, etc., and check of each circuit element and display element
(Step ST [hereinafter abbreviated as ST.)
1). Next, the subject inputs the data through the data input unit 15.
Body-specific information such as length, weight, age, gender, etc.
Data (ST2). Complete these data
(ST2, ST3) until data input is completed.
Is completed, it is determined whether there is a connection of the foot electrode unit.
(ST4). This determination is made in the circuits of FIGS.
The CPU 28 connects the connector 66 (67) from the CT terminal.
This is performed by determining the presence or absence of the continuation detection signal. If the determination in ST4 is NO, the
Set the switching of the electrode switching unit 32 to the impedance measurement mode.
Perform (ST5), and if the determination in ST4 is YES, both hands
-Electrode switching unit 3 for impedance measurement mode between both feet
2 is set (ST6). After changing the settings,
Wait for the start switch of the data input unit 15 to be turned on.
(ST7). Here, after the switching setting is completed, the display unit 16
Display the instruction "Turn ON the start SW".
Then, the key operation of the subject may be prompted. Start SW
When turned on, a time delay of several seconds is set (ST
8) The buzzer 29 informs that the measurement has started.
Otherwise, it is displayed on the display unit 16 (ST9). In ST8
The delay time depends on whether the subject turned on the start switch.
With both left and right hands, completely and accurately grip parts 12 and 13
Grip and place both feet correctly on foot positioning parts 53, 54
Set a time sufficient to obtain. When the impedance is measured, the impedance is measured.
Whether the measured impedance is stable in the normal range
Check (ST10, ST11), if not stable
Is displayed on the display unit 16 by touching the electrodes and hands and feet firmly.
"Please" and activate the buzzer 29
Then, this is notified (ST12). ST11
If the measured value is normal and stable,
Then, the body fat conversion calculation is executed (ST13), and the measurement is completed.
Is notified on the display unit 16 and the buzzer 29 (ST14).
In both cases, the measurement result is then displayed on the display unit 16 and
Accordingly, guideline advice information is also displayed (ST15). The above-mentioned health management guideline advice device
The body specifying information input from the data input unit 15
May use data measured at another time,
As shown in FIG. 8, the weight is set to the sheet-shaped foot electrode portion 5.
0 on the household weighing scale 68, and
The subject rides on the pole part 50 and measures with the weight scale 68
Then, the measured weight value may be input. This equipment
The foot electrode portion 50 of the device has a through hole 61.
Then, while holding the main unit 10 as shown in FIG.
It is possible to read the indicated value of the weight scale 68 via 61.
Wear. This through hole can be read by reading the indicated value
For that reason, a transparent window may be used. By the way, the impedance between both feet is measured.
When measuring with the feet close together,
May touch the thighs.
Since the path changes, the measurement accuracy is affected. Real
In the foot electrode unit 50 of the embodiment device, a through hole 61 is interposed.
The foot positioning parts 53 and 54 are arranged in a sandwiching manner,
The electrodes 55, 56, 57, 58 are provided in the positioning portions 53, 54.
The through hole 61 indirectly holds both feet,
It has the function of separating and positioning to some extent
You. FIG. 9 shows a health tube according to an embodiment of the present invention.
Of the foot electrode unit 50 used in the physical guideline advice device
FIG. 10 is an external perspective view, and FIG. 10 is a sectional view taken along line B-B ′ in FIG.
FIG. The feature of this foot electrode is that the foot
Electrodes are formed separately for the left foot and the right foot
On the other hand, one high-frequency signal applying electrode 69
And one resistance potential measuring electrode 70 is provided for both the left and right sides.
Is a point. This foot electrode part 50 is, of course, also a seat part.
The foot positioning parts 53 and 54 are arranged on the material 52,
Between the left foot positioning part 53 and the right foot positioning part 54
Thus, electrodes 69 and 70 are formed. Also sheet member
52 is a top sheet 62 and a back sheet 63 bonded with an adhesive
And protrudes between the seats at the center.
A resilient member 65 having a portion 65a
The electrodes 69 and 70 are formed so as to cover 5a.
69, 70 are exposed above the topsheet 62 and are exposed.
I'm making it. The material of the electrodes 69 and 70 is SUS, Ag, A
g-Agcl or the like is used.
Fat, urethane rubber sheet, etc. are used.
2. Back sheet 63 is made of PVC, PET, polyester
Etc. are used. Ag (silver) has antibacterial activity,
From the viewpoint of preventing infection such as surface sheet 62, elastic material
65 using resin mixed with Ag
69 and 70 are also antibacterial materials such as Ag plates and Ag plating materials.
Or other antimicrobial treated materials
Good. In the apparatus of the above embodiment, the hand-foot
When measuring impedance, use cable 51
In response to the connection detection signal of the foot electrode unit 50, the CPU 28
Responds to the mode setting command to the electrode signal switching unit 32.
Switch control signal is added to the
32 is connected as shown in FIG. That is,
Connection lines for electrodes 17 and 18 for applying high-frequency signals to both hands
I_h1, I_h2Is connected to one end of the high-frequency signal generator 21.
Connected to. Also, electrodes 1 for measuring the resistance potential of both hands
Connection line E of 9, 20_h1, E_h2Is the input of the differential amplifier 22
Connected to one end. And, for applying the high frequency signal of both feet
Connection line I for electrodes 55 and 56_f1, I_f2Are commonly connected
Connected to the other end of the high-frequency signal generator 21 and
Connection line E between electrodes 57 and 58 for measuring the resistance potential of the foot_f1, E
_f2Are connected in common and connected to other input terminals of the differential amplifier 22.
Is done. A specific example of impedance measurement between hands and feet will be described.
explain. Now, as shown in FIG. 12 and FIG.
The impedance of each palm-wrist of the left hand is Z₁, Z₆,right
The impedance of the left arm is Z_Two, Z_FiveTorso from right and left shoulder
The impedance to the upper end is Z_Three, Z_Four, Torso impey
Dance Z₇, The impedance of the right and left waist from the lower end of the torso
Z₈, Z₁₁, And the impedance of the right and left feet₉,
Z ₁₂, The impedance from the right and left ankle to the sole
Z_Ten, Z₁₃And In a conventional measurement, between the right wrist and the right ankle
Measure the impedance of. Figure 12Contact shown
Continue. Therefore, the measurement impedance Z_sIs Z_s= Z_Two+ Z_Three+ Z₇+ Z₈+ Z₉ The problem in this case is that Z_Two+ Z₉≫Z₇Is to be
You. For example, in the case of a man with thick limbs, Z_Two+ Z
₉= 150Ω + 130Ω = 280Ω, Z_Three+ Z₇+ Z₈
= 70Ω, Z_s= 350Ω, while the limbs
thinwomanIf sex, Z_Two+Z ₉ = 360Ω + 240Ω = 6
00Ω, Z_Three+ Z₇+ Z₈= 75Ω, Z₀= 675Ω
And there is considerable variation depending on the thickness of the limbs.
You. On the other hand, the hand-foot
Impedance measurement, short-circuit the electrodes of both hands, electrodes of both feet
Short-circuit, and measure the impedance between the palm and the sole.
13 is equivalent to the connection shown in FIG.
You. Therefore, the measurement impedance Z_sIs Z_s= (Z₁+ Z_Two+ Z_Three) // (Z_Four+ Z_Five+ Z₆)
+ Z₇+ (Z₈+ Z₉+ Z_Ten) // (Z₁₁+ Z₁₂+
Z₁₃) ≒ (Z₁+ Z_Two+ Z_Three) / 2 + Z₇+ (Z₈+ Z
₉+ Z_Ten) / 2 However, the impedance of each part is almost
Well balanced, equal, Z₁≒ Z₆, Z_Two
≒ Z_Five, Z_Three≒ Z_Four, Z₈≒ Z₁₁, Z₉≒ Z₁₂, Z_Ten≒
Z₁₃And In this method, the hand and foot impedance
Can be reduced by half, so that the impedance Z
₇Information can be effectively detected. Also, joints of hands and feet, etc.
Due to differences in posture such as slight bending due to
The effect of cracks can be reduced. Also, the contact between the thighs of both feet
Advantages such as less influence of measurement path change error due to
There is. [0034] According to the present invention, the electric power for the left foot and the electric power for the right foot are provided.
Since the poles are electrically connected in common, the impedance between the limbs
-When measuring dance, the effect of foot impedance
/ 2, improving the accuracy of fuselage impedance measurement
it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of a health management guideline advice device which is a premise of an embodiment of the present invention. FIG. 2 is a diagram illustrating a use state of the health management guideline advice device. FIG. 3 is a cross-sectional view of the foot electrode unit constituting the health management guideline advice device, taken along the line AA ′ in FIG. 1; FIG. 4 is a block diagram showing a circuit configuration in a main unit of the health management guideline advice device. FIG. 5 is a circuit diagram showing a connection example between an electrode signal switching unit of the health management guideline advice device and each electrode. FIG. 6 is a flowchart for explaining a measurement operation of the health management guideline advice device. FIG. 7 is a flowchart together with FIG. 6 for explaining a measurement operation of the health management guideline advice device. FIG. 8 is a diagram illustrating a state of use of the health management guideline advice device. FIG. 9 is an external perspective view showing a foot electrode unit used in the health management guideline advice device according to the embodiment of the present invention. FIG. 10 is a sectional view of the foot electrode section taken along line BB ′ in FIG. 9; FIG. 11 is a circuit diagram illustrating a short-circuit connection of both hand electrodes and a short-circuit connection of both foot electrodes in the device of the embodiment. FIG. 12 is an equivalent circuit diagram in a living body for explaining conventional impedance measurement. FIG. 13 is an equivalent circuit diagram in a living body for describing impedance measurement by the device of the embodiment. FIG. 14 is a diagram illustrating a conventional bioimpedance measurement. FIG. 15 is a view for explaining electrode attachment to hands and feet in a conventional bioimpedance measurement. DESCRIPTION OF SYMBOLS 10 Main unit 12 Left hand grip 13 Right hand grip 17, 18, 19, 20 Hand electrode 50 Foot electrode 51 Cable 55, 56, 57, 58 Foot electrode

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61B 5/05

Claims (1)

(57) [Claims 1] A first electrode pair for applying a high-frequency signal between measurement sites of a subject and a body resistance potential measured by arranging the applied signal in a body conduction path of the applied signal. A second electrode pair for measurement, a means for measuring a body resistance potential between the second electrode pair by applying a current between the first electrode pair, and measuring a body internal impedance, And information for extracting health evaluation data such as body fat, lean mass, body fat percentage, water content, and basal metabolism based on the impedance value and the body specifying information. in healthcare guideline advising device, before Symbol hand for at least one of the electrodes of the first electrode pair
A high frequency application electrode and at least one of the second electrode pair
With electrodes for measuring body resistance potential for hands
And the grip portion, the body potential measuring electrode which is one electrode of one of the high frequency application electrode for foot an electrode second electrode pairs respectively as for left foot and the right foot first electrode pair and a foot electrode portion provided bets, high in the for left foot and right foot
The electrodes for frequency application are electrically connected in common, and
Electrical connection between the body resistance potential measurement electrodes for the foot and right foot
Connected to the high frequency application electrode for the hand and the foot
A high-frequency signal is applied between the high-frequency application electrodes,
A health care guideline advice device , wherein an impedance between a body potential measurement electrode and the foot potential measurement electrode is measured.