JP3211117B2 - Health management guideline advice device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention calculates body fat, lean body mass, body fat percentage, water content, basal metabolism, etc., from information specific to a subject and information on the measurement of body impedance. The present invention relates to a health management guideline advice device that presents guideline information for health management based on the above.

[0002]

2. Description of the Related Art Conventionally, in order to measure body fat,
A four-electrode in-vivo impedance measurement method is known. As shown in FIG. 23, this in-vivo impedance measurement method
A main body device 1, a pair of electrodes 2 and 3 for applying a high-frequency signal connected from the main body device 1 by a lead wire 6,
Using a device equipped with a pair of electrodes 4 and 5 for measuring body resistance potential, the subject was laid on a bed, and electrodes 2 and 3 were attached to the right hand and the right foot, respectively, as shown in FIG. Electrodes 4 and 5 for measuring body resistance potential are attached to the right hand and the right foot near each other, and a high frequency signal is applied to the electrodes 2 and 3 from the main body device 1 to energize the subject. 5 is measured, and from the measured potential difference and the supplied current,
This is for obtaining the bioelectrical impedance of the subject.

[0003]

The body fat percentage measuring apparatus using the above-described conventional four-electrode type body impedance measuring method has the following problems. In order to eliminate the energization path change error and obtain sufficient measurement accuracy, it was necessary to set the measurement posture to a lying position and separate them in order to prevent contact between both feet and between hands and body. Due to the restraint of the subject and complicated mounting and operation of the electrodes, a special operator was required separately. It is not suitable for homes because it cannot be operated by the subject himself. Since this device is used for processing a large number of subjects, it is equipped with a large key input unit / display unit, printer unit, AC power supply unit, etc., which makes it large and inconvenient to handle. I have.
Preparation and cleaning up are troublesome due to the plurality of electrode parts having extension cables. It was necessary to reduce the influence of contact resistance by applying a conductive agent such as keratin cream to the limbs where the electrodes were to be attached, as in the case of attaching the electrodes of the electrocardiograph.

Further, when estimating body fat by impedance measurement, impedance information of the torso is more important than that of the hands and feet. It is found that the measurement result is significantly affected by a person with a thin limb, a person with a thick bone, and a slight difference in the posture of the joint, because the impedance is much larger than the part and the impedance at the joint part is particularly large.

For example, as an example of impedance measurement results of various parts of the body, in the case of a man with thick limbs: 350Ω between right hand / right leg, right arm 150Ω, right foot 130Ω, body 70Ω In the case of a woman with thin limbs: 675Ω between right hand / right foot Right arm part 360Ω Right foot part 240Ω, torso part 75Ω Wrist joint part: about 25 to 50Ω The present invention has been made by paying attention to the above problem, and the body impedance can be measured by the subject himself. It is an object of the present invention to provide a health care guideline advice device that is lightweight, inexpensive, has good measurement accuracy, and can be used in individuals and homes.

[0006] healthcare guideline advising device according to claim 1, wherein <br/> of the claims of this application, between the measurement site of a subject, a first electrode pair for applying a high-frequency signal, the applied signal A second electrode pair for measurement arranged to be placed in a body conduction path to measure a body resistance potential, and by conducting electricity between the first electrode pair, a body resistance potential between the second electrode pair is measured. Means for measuring the internal impedance of the body, means for inputting the body specific information of the subject, and, based on the impedance value and the body specific information, body fat, lean mass, body fat percentage, water content, basal metabolism Means for extracting health evaluation data such as the amount of the body, contacting the device body incorporating means for calculating the body internal impedance, etc.
And at least one electrode of the at least one electrode and a second electrode pair of the first electrode pair for hand annexed by shifting the position in the arrangement direction of the finger at the time, integrally formed with the apparatus main body a grip portion to be, the device is connected by cable to the main body portion, the first electrode pair of the at least one electrode and before <br/> Symbol second electrode pair of the foot electrode to which at least one electrode is provided Section.

[0007] In this health care guideline advice device, the grip is gripped with both hands, and the hand is brought into contact with at least one electrode of the first pair of electrodes and at least one electrode of the second pair of electrodes. The subject rides on the foot electrode, and the sole is brought into contact with at least one electrode of the first pair of electrodes and at least one electrode of the second pair of electrodes, so that the subject can measure himself while standing. It can be performed.

According to a second aspect of the present invention, there is provided the health care guideline advice device according to the first aspect, wherein at least one electrode of the first pair of electrodes for hand and at least one electrode of the second pair of electrodes for hand. At the time of gripping the grip
The positions are shifted in the direction in which the fingers are arranged .

[0009] healthcare guideline advising device according to claim 3 is the apparatus of claim 2, wherein said grip portion, the apparatus main body at both ends, respectively Re Teso and for left-handed and right-hand provided, this The first and second grips for the left and right hands respectively
One electrode and the second electrode pairs one of the electrodes of the electrode pair is brought
It is formed by shifting the position in the direction in which the fingers are held when the grip portion is gripped , and the foot electrode portion includes one electrode pair of the first electrode pair and a second electrode pair for the left foot and the right foot, respectively. One electrode is formed.

In this health care guideline advice device, high frequency application electrodes and resistance potential measurement electrodes are provided for the right hand and left hand, and the left foot and right foot, respectively, so that the impedance of various parts can be measured. Yes, for example, by short-circuiting the left and right hand electrodes and the left and right foot electrodes, more accurate measurement can be performed. The health care guideline advice device according to claim 4 is the device according to claim 3, wherein one electrode of the first electrode pair, one electrode of the second electrode pair, and one electrode for the right hand of the grip for the left hand. One electrode of the first electrode pair, one electrode of the second electrode pair, one electrode of the first electrode pair for the left foot, one electrode of the second electrode pair, and the right foot Switching means for selectively connecting and connecting one electrode of the first electrode pair and one electrode of the second electrode pair as needed.

In this health management guideline advice device, the switching means selectively switches the respective electrodes for the left hand, right hand, left foot, and right foot. For example, by selecting the electrode for left hand-left foot, the left hand-left foot is selected. The impedance between various parts can be freely measured by switching. The health care guideline advice device according to claim 5, wherein in the device according to claim 3, one electrode of the first electrode pair for the left foot and the right foot is electrically connected in common, and the left foot and the right foot are connected. And one electrode of the first electrode pair for the left hand and the right hand is electrically connected in common, and one electrode of the second electrode pair for the left hand is electrically connected in common. One second electrode pair for the right hand is electrically connected in common.

In this health care guideline advice device, the electrodes for the left foot and the right foot are electrically connected in common and / or the electrodes for the left hand and the right hand are electrically connected in common. In addition, the unnecessary impedance of the joints of the limbs can be halved, and the impedance measurement accuracy of the trunk can be improved accordingly. The health care guideline advice device according to claim 6, wherein a first electrode pair for applying a high-frequency signal between measurement sites of a subject and a body resistance potential measurement by arranging the applied signal in a body conduction path of the applied signal. Second for
A pair of electrodes, means for measuring body resistance potential between the second pair of electrodes by applying a current between the first pair of electrodes to measure the internal impedance of the body, and means for inputting body specific information of the subject And means for extracting health evaluation data such as body fat, lean mass, body fat percentage, water content, basal metabolism, etc., based on the impedance value and the body specifying information. At least one of the electrode pairs
Contact the number of electrodes and the second pair of electrodes at least one electrode
And electrodes for hand annexed by shifting the position in the arrangement direction of the finger when touched, is connected with the electrode and the cable for the hand, the first electrode to the at least one electrode and the second electrode of the And a foot electrode portion provided with at least one pair of electrodes. The health care guideline advice device according to claim 7, wherein a first electrode pair for applying a high-frequency signal between the measurement sites of the subject and a body resistance potential measured by arranging the applied signal in a body conduction path of the applied signal. A second pair of electrodes for use, a means for measuring a body resistance potential between the second pair of electrodes by applying a current between the first pair of electrodes, and measuring the internal impedance of the body; And a means 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. at least one electrode of the at least one electrode and a second electrode pair of the first electrode pair of the foot which is attached to the apparatus main body with a built-in means and the like for calculating the internal body impedance, the Device body And foot electrode portion are integrally formed, which is connected to the apparatus main body by a cable, the first electrode pair of the at least one electrode and the second electrode pair at least one electrode at the time of contact Row of fingers
And a hand electrode portion provided at a position shifted in the moving direction .

[0013]

The present invention will be described in more detail with reference to the following examples. FIG. 1 is an external perspective view of a health management guideline advice device according to an embodiment of the present invention. The apparatus of this embodiment includes a main unit 10, a foot electrode unit 50, and a cable 5 connecting the main unit 10 and the foot electrode unit 50.
And 1.

The main unit 10 includes a main body 11, a left-hand grip (grip) 12 and a right-hand grip (grip) 13 integrally formed on both left and right ends of the main body 11.
It is composed of On the front of the main body 11, a power switch 14, a key switch 15 for inputting a start instruction and height, weight, and the like, which are physical characteristics of the subject,
Further, a display unit 16 for displaying measurement results and advice information is provided. The display section 16 is disposed so as to be substantially at the center between the left hand grip section 12 and the right hand grip 13.

Each of the left-hand grip 12 and the right-hand grip 13 has a vertical, substantially cylindrical shape, and has on its surfaces electrodes 17 and 18 for applying a high-frequency signal and electrodes 19 and 20 for measuring a resistance potential. Is provided. These electrodes 1
Although not shown in FIG. 1, the electrodes 7 and 18 and the electrodes 19 and 20 are electrically connected to a circuit unit in the main body 11.
The foot electrode portion 50 is formed of a substantially rectangular flat sheet material portion 52.
Above, the positioning part 53 for the left foot and the positioning part 5 for the right foot
4 are arranged, and furthermore, both feet positioning portions 53 and 54 include:
Electrodes 55 and 56 for applying a high-frequency signal and electrodes 57 and 58 for measuring a resistance potential are provided, respectively. A housing 59 is provided at the upper end of the front of the sheet member 52, and a display 60 for monitoring a measurement state is provided in the housing 59. Further, a through hole 61 is formed in front of the seat member 52 between the two leg positioning portions.

The sheet member 52 includes a top sheet 62 and a back sheet 63 as shown in the sectional view of FIG. The material of these sheets 62 and 63 is PV
C, PET, polyethyl and the like are used. Further, elastic projections 64 and 65 are formed from the sheet material section 52 in regions corresponding to the arches of the foot positioning sections 53 and 54, and the projections 64 and 65 are respectively formed on the projections 64 and 65.
5, 56, 57, 58 are provided. FIG. 3 shows the cross-sectional structure of the positioning part for the right foot, but the same applies to the cross-sectional structure of the positioning part for the left foot. The reason why the protruding portions 64 and 65 are provided and the electrodes are formed here is as follows.
When the subject's feet are placed on both feet positioning portions 53, 54,
This is to ensure that the electrodes are in contact with each other before the arch of the sole. As the elastic sheet material forming the protrusions 64 and 65, for example, silicone rubber is used. Housing part 5
ABS, PVC, and the like are used as a material constituting 9.

The cable 51 has connectors 66 and 6 at both ends.
The main unit 10 and the foot electrode unit 50 are detachably connected. When the bioelectrical impedance of the subject is measured using the apparatus of this embodiment, the subject A places his / her feet on the foot positioning sections 53 and 54 of the foot electrode section 50 as shown in FIG. At the same time, the user holds the grip unit 12 of the main unit 10 with his left hand and the grip unit 13 with his right hand, raises both hands horizontally forward, and starts measurement with the main unit 10 held at shoulder height.

FIG. 4 is a block diagram showing a circuit configuration of the main unit 11 of the main unit 10. As shown in FIG. The internal circuit of the embodiment device, the high-frequency signal generating section 21 which generates a constant current high frequency signal of a frequency f ₀ and _{(10 ≦ f 0 ≦ 100KHZ)} , the electrode 1
A differential amplifier 22 for receiving potential signals from 9 and 20, a band-pass filter 23 for cutting off signals other than the frequency f ₀ , and a demodulation circuit 24 for demodulating high-frequency signal components
An A / D converter 25 for converting an analog signal into a digital signal, a ROM 26, a RAM 27, and an input from the A / D converter 25 and height and weight from the data input unit 15,
A CPU 28 that fetches data such as age, gender, date and time, executes a process of calculating impedance measurement processing, and extracts health management guideline advice information, a buzzer 29 for issuing a warning, and a measurement result, for example, a printer. A measurement result output unit 30 that outputs by communication to a power source, a battery 31 for a power supply, an input of a high-frequency signal generation unit 21 and an input of a differential amplifier 22 are connected to the electrodes 17, 18, 19, and 2 of the grip units 12 and 13.
0, the electrodes 53, 55, 5657 of the foot electrode unit 50 via the connector 66, the cable 51, and the connector 67;
58 is provided with an electrode signal switching unit 32 for selectively switching and connecting, or short-circuiting and opening the connection. The switching of the electrode signal switching unit 32 is performed by an analog switch, a relay, or the like.
In accordance with the measurement mode setting of the CPU 28, it is determined by a switching control signal correspondingly issued from the CPU 28.

FIG. 5 shows a connection example when the electrode signal switching section 32 is set to the impedance measurement mode between both hands and both feet. In this case, the high-frequency signal application electrodes 17 and 18 for the left hand and the right hand are short-circuited, and the foot electrode 5
The high-frequency signal applying electrodes 55 and 56 of 0 are short-circuited, and the high-frequency signal generator 21 is connected between the electrodes 17 and 18 for hands and the electrodes 55 and 56 for feet. Further, the resistance potential measuring electrodes 19 and 20 for the left hand and the right hand are short-circuited, and similarly, the resistance potential measuring electrodes 57 and 58 for the left foot and the right foot are short-circuited and connected to the inputs of the differential amplifier 21, respectively. Have been.

Next, the measuring operation of the apparatus of the above embodiment is shown in FIG.
This will be described with reference to the flowchart shown in FIG. When the power switch 14 is turned on, measurement preparation processing such as initialization of the RAM and the like and checking of each circuit element and display element is performed (step ST (hereinafter abbreviated as ST) 1). Next, the subject inputs body-specific information such as height, weight, age, and gender, and measurement date and time data from the data input unit 15 (ST).
2). Wait until these data are completely input (S
T2, ST3) When the data input is completed, it is determined whether or not the foot electrode unit is connected (ST4). This determination is performed by the CPU 28 in the circuits of FIGS. 4 and 5 by determining the presence or absence of a connection detection signal from the CT terminal of the connector 66 (67).

If the determination in ST4 is NO, the electrode switching unit 32 is set to switch to the impedance measurement mode between both hands (ST5), and if the determination in ST4 is YES, the impedance measurement mode between both hands and both feet is set. Electrode switching unit 3
2 is set (ST6). After the switching setting is completed, the process waits until the start switch of the data input unit 15 is turned on (ST7). Here, after the switching setting is completed, an instruction display of “Please turn on the start SW” may be displayed on the display unit 16 to prompt the examinee to perform a key operation. When the start SW is 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). The delay time in ST8 is sufficient for the subject to turn on the start switch and then completely and accurately grip the grip portions 12 and 13 with both left and right hands and to place both feet on the foot positioning portions 53 and 54 correctly. Set to time.

When the impedance is measured, it is confirmed whether or not the measured impedance value is stable in the normal range (ST10, ST11). "Please contact your feet firmly" is displayed, and the buzzer 29 is operated to notify the fact (ST12). In ST11, when the measured value is normal and stable, the measurement process and the conversion calculation of the body fat are executed (ST13), and the end of the measurement is notified on the display unit 16 and the buzzer 29 (ST14). After that, the measurement result is displayed on the display unit 16 and, if necessary, guideline advice information is also displayed (ST15).

In the apparatus of the above embodiment, the body specifying information input from the data input unit 15 may be data measured at another occasion, but the weight may be used as shown in FIG. The sheet-shaped foot electrode unit 50 is placed on a household weighing scale 68, and in this state, on the foot electrode unit 50,
The subject may be riding on the scale 68 to measure the weight and then input the measured weight value. Since the foot electrode unit 50 of the example apparatus has the through-hole 61, it is possible to read the indicated value of the weight scale 68 through the through-hole 61 while holding the main unit 10 as shown in the figure. it can. This through-hole may be replaced with a transparent window, since the indicated value of the weight scale 68 may be read.

By the way, when measuring the impedance between both feet, if the feet are brought close to each other, the subject may come into contact with the thighs. In this case, the measurement path changes, so that the measurement accuracy is reduced. Will be affected. In the foot electrode portion 50 of the embodiment device, foot positioning portions 53, 54 are arranged so as to sandwich the through hole 61 therebetween, and the foot positioning portions 53, 54 are provided on the electrodes 55, 56, 57, 58. Therefore, the through hole 61 has a function of indirectly separating and positioning both feet to some extent.

FIG. 9 is an external perspective view of a foot electrode portion 50 used in another embodiment of the present invention, and FIG.
It is sectional drawing cut | disconnected by the -B 'line. The feature of this foot electrode portion is that the foot electrode portion of FIG. 1 is formed independently for the left foot and the right foot, whereas the foot electrode portion of FIG. The point is that one resistance potential measuring electrode 70 is provided. This foot electrode part 50
Of course, on the sheet member 52, the foot positioning portion 53,
The electrodes 69 and 70 are formed so as to straddle between the left foot positioning portion 53 and the right foot positioning portion 54. The sheet member 52 is formed by bonding a top sheet 62 and a back sheet 63 with an adhesive. An elastic member 65 having a protruding portion 65a at the center is sandwiched between the two sheets. The electrodes 69 and 7 are covered so as to cover 65a.
0, and the electrodes 69 and 70 are projected and exposed above the topsheet 62. The electrodes 69 and 70 are made of SUS, Ag, Ag-Agcl or the like, the elastic material 65 is made of a silicone resin or a urethane rubber sheet, and the top sheet 62 and the back sheet 63 are made of PVC, P
ET, polyester and the like are used.

Since Ag (silver) has an antibacterial activity, a resin in which Ag is mixed into the surface sheet 62 and the elastic material 65 is used from the viewpoint of preventing infection by athlete's foot and the like, and the electrodes 69 and 70 are also made of Ag. It is desirable to use a plate, an antibacterial material such as an Ag plating material, or a material subjected to other antibacterial treatment. In the apparatus of the above embodiment, when measuring the impedance between both hands and both feet, the CPU 28 detects the connection detection signal of the foot electrode unit 50 by the cable 51,
A switching control signal corresponding to the mode setting command is applied to the electrode signal switching unit 32, and the electrode signal switching unit 32
The inside is connected as shown in FIG. That is, the connection lines I _h1 and I _h1 of the electrodes 17 and 18 for applying the high-frequency signal to both hands.
_h2 is connected to one end of the high-frequency signal generator 21. Further, connection lines E _h1 and E _h2 of the electrodes 19 and 20 for measuring the resistance potential of both hands are connected to one end of the input of the differential amplifier 22. Then, the electrodes 55 for applying high frequency signals on both feet,
With the connection line I _f1, I _f2 of 56 are connected are commonly connected to the other end of the high-frequency signal generating section 21, the connection line E _f1, E _f2 electrodes 57 and 58 for resistance potential measurement of both feet common The differential amplifier 22 is connected to another input terminal.

When measuring the impedance between both hands, the foot electrode unit 50 is detached from the main unit 10 together with the cable 50. As a result, as shown in FIG. 12, the connection detection signal becomes an OPEN signal, and the CPU 28 sets the two-handed impedance measurement mode based on the signal indicating the non-connection. Then, the electrode signal switching unit 32 is connected as shown in FIG. 12 by the switching control signal according to the mode. That is, the connection line I _h1 of the left hand high-frequency signal application electrode 17 is connected to one end of the high-frequency signal generation unit 21, and the connection line I _h1 of the left hand high-frequency signal application electrode 18 is provided.
_h2 is connected to the other end of the high-frequency signal generator 21. And the connection line E _h1 of the left hand resistive potential measuring electrode 19, connection lines E _h2 of the right hand resistive potential measuring electrode 20 is connected to an input of the differential amplifier 22.

Next, a specific example of measuring the impedance between the limb and the foot will be described. Now, as shown in FIGS. 13 and 14, the impedance of each palm to wrist of the right hand and the left hand is represented by Z ₁ ,
Z ₆ , the impedance of the right and left arms is Z ₂ , Z ₅ , the impedance from the right and left shoulder to the top of the torso is Z ₃ , Z ₄ , the impedance of the torso is Z ₇ , the impedance of the right and left waist from the bottom of the torso is Z ₈ , Z ₁₁ , impedance of right and left feet Z
_9, Z _12, the impedance from the ankle right and left until the sole and Z _10, Z _{1 3.}

In a conventional measurement, the impedance between the right wrist and the right ankle is measured. The connection shown in FIG. 13 is equivalently performed. Therefore, the measured impedance Z _S is as follows: Z _S = Z ₂ + Z ₃ + Z ₇ + Z ₈ + Z ₉ The problem in this case is that Z ₂ + Z ₉ ≫Z ₇ . For example, for a man with thick limbs, Z ₂ + Z ₉ = 15
_{0Ω + 130Ω = 280Ω, Z 3} + Z 7 + Z 8 = 70Ω
In, Z _S = about 350Ω with respect consists, when the limbs thin _{man, Z 2 + Z 3 = 360Ω} + 240Ω = 600Ω,
When Z ₃ + Z ₇ + Z ₈ = 75Ω, Z ₀ = approximately 675Ω, and considerably varies depending on the thickness of the limbs.

On the other hand, the measurement of the impedance between the hands and feet by the apparatus of the above embodiment is equivalent to since the electrodes of both hands are short-circuited, the electrodes of both feet are short-circuited, and the impedance is measured between the palm and sole. Is the connection shown in FIG.
Therefore, the measured impedance Z _S is given by: Z _S = (Z ₁ + Z ₂ + Z ₃ ) // (Z ₄ + Z ₅ + Z ₆ ) +
_{Z 7 + (Z 8 + Z} 9 + Z 10) // (Z 11 + Z 12 + Z 13) ≒
(Z ₁ + Z ₂ + Z ₃ ) / 2 + Z ₇ + (Z ₈ + Z ₉ +
Z ₁₀ ) / 2 However, the impedance of each part of the right and left hands and feet is almost balanced and equal, that is, Z ₁ ≒ Z ₆ , Z ₂
≒ Z ₅ , Z ₃ Z ₄ , Z ₈ ≒ Z ₁₁ , Z ₉ ≒ Z ₁₂ , Z ₁₀ ≒
It is the Z _13.

In this method, since the impedance of the hand and the foot can be reduced to half, the impedance Z of the body part can be reduced.
₇ information can be detected effectively. In addition, the influence of measurement variation due to a difference in posture such as slight bending due to joints of hands and feet can be reduced. Further, there is an advantage that the influence of the measurement path change error due to the contact between the thighs of both feet can be reduced.

In the above embodiment, the measurement of the impedance between the hand and the foot has been described assuming that the impedance of both hands or both feet is equal. However, in practice, the left and right limbs have variation in the degree of development depending on the subject. Dominant hand,
It is conceivable that the dominant foot is more developed than the other, and the impedance value is lower than the other. For example, the following equation is used as a correction equation in such a case.

Z _hf = (Z _Rh-Rf + Z _Lh-Lf ) / 2 (1) where Z _hf : impedance between hand and foot Z _Rh-Rf : measured value of impedance between right hand and right foot Z _{Lh- Lf} : Measured value of impedance between left hand and left foot Further, the measured impedance value greatly differs depending on the length, thickness, bone thickness, joint thickness, development condition, etc. of the arm (hand).

As an example, assuming a case of a man with thick limbs, referring to FIG. 13, between the right limbs: Z ₂ + Z ₃ + Z ₇ + Z ₈ + Z ₉ = 350Ω Right arm: Z ₂ ≒ Z ₅ ≒ (Z ₂ + Z ₅ ) / 2 = 150Ω Right foot: Z ₉ ≒ Z ₁₂ ≒ (Z ₉ + Z ₁₂ ) / 2 = 130Ω Body: Z ₃ + Z ₇ + Z ₈ = 70Ω In the case of a woman with thin limbs, the same expression is used for the right hand. Between feet: 6
75Ω, right arm: 350Ω, right foot: 240Ω, body: 70Ω.

In general, the impedance at the wrist is about Z ₁ ≒ Z ₂ = 25 to 50Ω, and the impedance at the ankle is Z ₁₀ ≒ Z ₁₃
There is a variation of about 15 to 50Ω. Therefore,
The correction of the impedance between the hand and the foot due to the variation of the arm may be performed by the following equation.

[0036]

(Equation 1)

Here, Z _hf : average value of impedance measurement values between right hand and right foot and between left hand and left foot [see equation (1)] Z _Rh-Lh : impedance measurement values between right hand and left hand α _h , β _r : Constants calculated from the statistical processing results of samples randomly extracted from the population to be measured. Similar to the above-described variation in the hands, the length of the feet, thickness, bone thickness, joint thickness, degree of development, etc. The measured impedance values differ greatly. Therefore, it is preferable to correct the impedance between the hand and the foot due to the variation in the foot by the following equation.

[0038]

(Equation 2)

Where, Z _Rf-Lf : a measured value of the impedance between the right foot and the left foot α _f , β _f : a constant calculated based on a result of a random processing of a sample randomly extracted from the population to be measured. The average impedance Z _hf may be calculated from the impedance between the right hand and the left foot and the measured impedance between the left hand and the right foot.

As described above, using the above formula (2) or (3) or both formulas, a more accurate measurement of the impedance between the limb and the arm (hand) and the variation in the foot is performed. Can be. To use these equations,
Right hand-right foot, left hand-left foot, both hands, both feet, right hand-
It is necessary to measure the impedance between the left foot and between the left hand and the right foot.

Therefore, another embodiment of the present invention, which can measure these impedances, will be described with respect to a health care guideline advice device. The appearance of the device of this embodiment and the basic configuration of the circuit unit are the same as those shown in FIGS.
It is characterized by a mode setting function of the CPU 28, other processing functions, and a switching function of the electrode signal switching unit 32. In this embodiment device, between the right hand-right foot, left hand-left foot, both hands,
It has a function of measuring the impedance between both feet, between the right hand and the left foot, and between the left hand and the right foot, and also has a function of performing a correction process using the measured impedance.

Next, each impedance in the apparatus of this embodiment is
The dance measurement mode will be described. First, right hand-right foot
When the inter-impedance measurement mode is set, the CPU 2
8 by the switching control signal from
32 is switched and connected as shown in FIG. Toes
The connection line I of the high-frequency signal application electrode 18 of the right hand_h2But,
Connected to one end of the high-frequency signal generator 21
Connection line I of signal application electrode 55_f2Is the high frequency signal generator 2
1 is connected to the other end. In addition, the right hand
Connection line E for pole 20_h2And the resistance potential measuring electrode 58 of the right foot
Connection line E_f2Are connected to one end and the other end of the input of the differential amplifier 22.
Continued. Then, the high frequency signal applying electrode 17 of the left hand is
Connection line I_h1Connection line E of the resistance potential measuring electrode 19_h1Is
Not connected anywhere, OPEN. Also, the height of the left foot
Connection line I of frequency signal applying electrode 54 _f1, For resistance potential measurement
Connection line E for electrode 56_f1OPEN
It is.

Next, an impedance measurement mode between the left hand and the left hand will be described.
Mode, the switching control from CPU 28
The electrode signal switching unit 32 responds to the
As shown in FIG. In other words, applying a high-frequency signal to the left hand
Connection line I for electrode 17_h1Is one of the high-frequency signal generators 21.
Connected to the end and connected to the high-frequency signal application electrode 55 on the left foot
Line I_f1Is connected to the other end of the high-frequency signal generator 21. Ma
The connection line E of the left-handed resistance potential measuring electrode 19_h1And left foot
Connection line E of the resistance potential measuring electrode 56 of FIG._f1Is the differential amplifier
22 are connected to one end and the other end of the input. And the right hand
Connection line I of high-frequency signal application electrode 18_h2, Resistance potential measurement
Connection line E for the electrode 20_h2Is not connected anywhere, OP
EN. In addition, the high-frequency signal application electrode 56 of the right foot
Connection line I _f2, Connection line E for resistance potential measuring electrode 58_f2Also,
Not connected anywhere, OPEN.

In addition, the two-handed impedance measurement mode
When set, the switching control signal from the CPU 28
As a result, the electrode signal switching unit 32, as shown in FIG.
The connection is switched. In other words, the left hand high-frequency signal application electrode
17 connection lines I_h1Is connected to one end of the high-frequency signal generator 21.
The connection line I of the right hand high-frequency signal application electrode 18 _h2
Is connected to the other end of the high-frequency signal generator 21. Also left
Connection line E of the electrode 19 for measuring the resistance potential of the hand_h1And right hand resistance
Connection line E of potential measurement electrode 20_h2Is the differential amplifier 22
Connected to one end and the other end of the input. In this case, of course
The connection line I related to the electrodes of both feet_f1, I_f2, E_f1, E
_f2Are not connected and OPEN.

When the two-leg impedance measurement mode is set, the switching control signal from the CPU 28 causes the electrode signal switching unit 32 to be switched and connected as shown in FIG. That is, the high-frequency signal application electrode 55 on the left foot
The connection line I _f1 is connected to one end of the high frequency signal generating unit 21, connection line I _f2 of the right foot of the high-frequency signal application electrode 56 is connected to the other end of the high frequency signal generator 21. The connection line E _f1 of the resistance potential measurement electrode 57 of the left foot and the connection line E _f2 of the resistance potential measurement electrode 58 of the right foot are connected to one end and the other end of the input of the differential amplifier 22. In this case, the connection lines I _h1 , I _h2 , E _h1 , E _h2 relating to the electrodes of both hands are not connected to any of the electrodes, and the OPE
N.

In addition, an impedance measurement mode between the right hand and the left foot is used.
Mode, the switching control from CPU 28
The electrode signal switching unit 32 responds to the
As shown in FIG. In other words, the right hand high frequency signal applied
Connection line I for electrode 18_h2Is one of the high-frequency signal generators 21.
Connected to the end and connected to the high-frequency signal application electrode 55 on the left foot
Line I_f1Is connected to the other end of the high-frequency signal generator 21. Ma
Also, the connection line E of the resistance potential measuring electrode 20 of the right hand_h2And left foot
Connection line E of the resistance potential measuring electrode 57_f1Is the differential amplifier
22 are connected to one end and the other end of the input. And the left hand
Connection line I of high-frequency signal application electrode 17_h1, Resistance potential measurement
Connection line E for the electrode 19_h1Is not connected anywhere, OP
EN. The high-frequency signal application electrode 55 on the right foot
Connection line I _f2, Connection line E for resistance potential measuring electrode 58_f2Also,
Not connected anywhere, OPEN.

Next, when the mode for measuring the impedance between the left hand and the right foot is set, the electrode signal switching unit 32 is switched and connected by the switching control signal from the CPU 28 as shown in FIG. In this case, the case of FIG.
Since the right hand and the left hand and the left foot and the right foot are reversed, and the connection in FIG. 19 and the connection on the right and left may be reversed, the description is omitted.

Here, the operation in the case of performing the impedance measurement correction processing in the apparatus of the embodiment will be described with reference to the flowcharts shown in FIGS. In the following measurement operation, as a premise, the subject rides on the foot electrode unit 50, grips the grip units 12, 13 with left and right hands, and starts the measurement operation in the state shown in FIG. The measurement of the impedance between the right hand and the right foot is set as the basic measurement site measurement mode.

When the power switch is turned on and the operation is started, measurement preparation processing is performed (ST21), body-specific information and the like are input (ST22), and the process waits until READY and YES (ST23). If YES, the process up to the determination of whether or not the foot electrode is connected (ST24) is the same as in the case of FIG. In the device of this embodiment, the foot electrode unit 50 is connected to the main device 10 in ST24.
If the connection is not made, a warning sound by the buzzer 29 or the display unit 16 is displayed to notify that the foot electrode unit needs to be connected (ST25).

If the connection of the foot electrode unit 50 is detected in ST24, the electrode signal switching unit 3 is switched to the impedance measurement mode (basic measurement mode) between the right hand and the right foot.
2 is set to the connection state of FIG. 15, and the basic mode flag is set to "1" (ST26). Then, after that, as in ST7, ST8, and ST9 of FIG.
When W is turned on, a time delay of several seconds is performed thereafter (ST28), and the start of measurement is reported on the display unit 16 and the like (ST29). After the notification, whether or not the measured impedance value is stable in a normal range is confirmed by a plurality of measurements or the like (ST30). If the impedance value is not normal or stable (ST31), the contact with the electrode unit should be firmly made. , Display unit 16, buzzer 29, etc. (ST32)
The processing of ST30 to ST32 is repeated until normal stability is achieved. If the determination that this is normal and stable is within a predetermined range over several measurements, the determination in ST31 is YES.

If the determination is YES in ST31, ST33
Then, the measurement process, that is, the impedance between the right hand and the right foot is obtained, and then it is determined whether the basic mode flag is "1" (ST34). Since the flag has already been set, the process proceeds to ST35 with YES determination, the measurement result is stored in the RAM area, and the switching setting of the electrode signal switching unit 32 is performed to the next measurement mode, for example, the measurement mode between both hands. ,
The basic mode flag is reset (ST36), and ST30
Return to After that, measure the impedance between both hands by S
This is performed in T30,..., ST33. After the impedance measurement between both hands, the basic mode flag is reset, so the determination in ST34 is NO, and the process proceeds to ST37.

In ST37, the stored data in the RAM area is read, and a correction operation is performed by the above-described correction formula.
The corrected bioelectrical impedance is obtained (ST38).
Thereafter, in ST39 to ST41, ST1 in FIG.
3,..., The same processing as in ST15 is performed, and the measurement is completed.

[0053]

According to the present invention, since the measurement can be performed only by the examinee riding on the foot electrode portion and grasping the grip portion attached to the main body device, the measurement can be easily performed while the examinee stands still. it can. Also, since it is not necessary to attach electrodes to the feet at least,
The trouble is reduced, and the measurement can be easily performed. According to the second aspect of the present invention, since the grip portion is formed integrally with the main body device and the hand electrode is formed on the grip portion, the electrode is brought into contact with the palm simply by gripping the grip portion. This makes it unnecessary to attach the electrode to the hand, so that the user is free from the hassle of attaching and the measurement can be performed more easily.

According to the third aspect of the present invention, the grip portions are formed at both ends of the main body device, the left and right hand electrodes are provided on both grip portions, and the foot electrode portions are provided for the left foot and the right foot. Since the electrodes are provided, the impedance between various parts can be measured. For example, the impedance between hands and feet can be measured by short-circuiting both hands and both feet, and the impedance of hands and feet can be halved. Can reduce the influence of impedance, and can perform highly accurate measurement.

According to the device of the fourth aspect, the electrodes provided on the left and right hands and the left and right feet can be switched by the switching means so that measurement between various two parts can be freely performed. It is possible to measure not only the impedance between the hands and feet of the part, but also the impedance between the other parts, and to examine the characteristics due to differences in limb length, thickness, bone thickness, development of the left and right limbs, etc. from the standard body type It can be used as the body specific correction information to measure the improvement of the measurement accuracy.

According to the device of the fifth aspect, the electrodes for the left foot and the right foot are electrically connected in common, and / or the electrodes for the left hand and the right hand are electrically connected in common. When measuring the impedance between the limbs, the influence of the impedance of the feet and / or hands can be reduced to half, and the impedance measurement accuracy of the trunk can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a health management guideline advice device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a state of use of the apparatus of the embodiment.

FIG. 3 is a cross-sectional view taken along line AA ′ of FIG. 1 of a foot electrode unit constituting the device of the embodiment.

FIG. 4 is a block diagram showing a circuit configuration in a main unit of the apparatus of the embodiment.

FIG. 5 is a circuit diagram showing a connection example of an electrode signal switching unit and each electrode of the device of the embodiment.

FIG. 6 is a flowchart for explaining a measurement operation of the apparatus of the embodiment.

FIG. 7 is a flowchart together with FIG. 6 for explaining a measuring operation of the apparatus of the embodiment.

FIG. 8 is a view for explaining another use state of the apparatus of the embodiment.

FIG. 9 is an external perspective view showing a foot electrode portion used in a health care guideline advice device according to another 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 apparatus of the embodiment.

FIG. 12 is a circuit diagram for explaining a detached state of a foot electrode portion in the device of the embodiment.

FIG. 13 is an equivalent circuit diagram in a living body for explaining conventional impedance measurement.

FIG. 14 is an in-vivo equivalent circuit for explaining impedance measurement by the apparatus of the embodiment.

FIG. 15 is a circuit diagram showing a connection state in a right hand-right foot impedance measurement mode in a health care guideline advice device according to another embodiment of the present invention.

FIG. 16 is a circuit diagram showing a connection state in a left hand-left foot impedance measurement mode in the device of the embodiment.

FIG. 17 is a circuit diagram showing a connection state in the two-handed impedance measurement mode in the apparatus of the embodiment.

FIG. 18 is a circuit diagram showing a connection state in an impedance measurement mode between both feet in the apparatus of the embodiment.

FIG. 19 is a circuit diagram showing a connection state in a right hand-left foot impedance measurement mode in the device of the embodiment.

FIG. 20 is a circuit diagram showing a connection state in a left hand-right foot impedance measurement mode in the device of the embodiment.

FIG. 21 is a flowchart for explaining a measurement operation of the apparatus of the embodiment.

FIG. 22 is a flowchart together with FIG. 21 for explaining the measurement operation of the apparatus of the embodiment.

FIG. 23 is a diagram illustrating a conventional bioimpedance measurement.

FIG. 24 is a diagram illustrating electrode attachment to hands and feet in a conventional bioimpedance measurement.

[Explanation of symbols]

 Reference Signs List 10 Main unit 12 Left hand grip 13 Right hand grip 17, 18, 19, 20 Hand electrode 50 Foot electrode part 51 Cable 55, 56, 57, 58 Foot electrode

Claims (7)

(57) [Claims] A first electrode pair for applying a high-frequency signal between measurement sites of a subject, and a second electrode pair for measurement for measuring a body resistance potential by being arranged in a body conduction path of the applied signal. Means for measuring the body resistance potential between the second electrode pair to measure the internal impedance of the body by conducting electricity between the first electrode pair, means for inputting the body specific information of the subject, Means for extracting health evaluation data such as body fat, lean mass, body fat percentage, water content, basal metabolism, etc., based on the impedance value and the body specifying information. Shift the position of the finger in the direction of arrangement of the finger on the device body that contains the means for calculating the internal impedance.
At least one electrode of said first pair of electrodes and at least one electrode of a second pair of electrodes ,
A grip portion integrally formed on the serial device main body are connected by cable to the apparatus body, the first electrode pair of the at least one electrode and the second electrode pair at least one of the electrodes A health care guideline advice device comprising: a foot electrode portion provided. 2. The at least one electrode of the first pair of hands and the at least one electrode of the second pair of hands.
Is positioned in the direction in which the fingers are arranged when the grip is gripped.
2. The health management guideline advice device according to claim 1, wherein the health management guideline advice device is formed so as to be shifted . 3. The grip section is provided at both ends of the apparatus main body section for left and right hands, respectively, and the left and right grip sections each have one electrode of the first electrode pair. And a finger when one electrode of the second electrode pair grips the grip portion
Are formed so as to be displaced in the arrangement direction, and one electrode of the first electrode pair and one electrode of the second electrode pair are formed on the foot electrode portion for the left foot and the right foot, respectively. The health management guideline advice device according to claim 1. 4. An electrode of the first pair of electrodes of the grip for the left hand, one electrode of the second pair of electrodes, and one electrode of the first pair of electrodes of the grip for the right hand. Two electrodes, one electrode of the first pair of electrodes for the left foot, one electrode of the second pair of electrodes, and one electrode of the first pair of electrodes for the right foot;
4. The health care guideline advice device according to claim 3, further comprising a switching means for selectively switching and connecting the one electrode of the second electrode pair as required. 5. One electrode of the first pair of electrodes for the left foot and the right foot is electrically connected to each other in common, and one electrode of the first pair of electrodes for the left foot and the right foot is electrically connected to each other. And one electrode of the first electrode pair for the left hand and the right hand is electrically connected in common, and the second electrode for the left hand and the right hand is used for the second hand. The health care guideline advice device according to claim 3, wherein one electrode of the electrode pair is electrically connected in common. 6. A first electrode pair for applying a high-frequency signal between measurement sites of a subject, and a second electrode pair for measurement for measuring a body resistance potential by being arranged in a body conduction path of the applied signal. Means for measuring the body resistance potential between the second electrode pair to measure the internal impedance of the body by conducting electricity between the first electrode pair, means for inputting the body specific information of the subject, Based on the impedance value and the body specifying information, a body management guideline advice device comprising: means for extracting health evaluation data such as body fat, lean mass, body fat percentage, water content, and basal metabolism; At least one electrode of one electrode pair and at least one electrode of the second electrode pair are arranged in the direction in which the fingers are arranged at the time of contact.
And electrodes for hand annexed by shifting the position, are connected by the electrode and the cable for the hand, the first electrode pair of the at least one electrode and the second electrode pair at least one electrode A health care guideline advice device comprising: a foot electrode portion provided. 7. A first electrode pair for applying a high-frequency signal between measurement sites of a subject, and a second electrode pair for measurement for measuring a body resistance potential by being arranged in a body conduction path of the applied signal. Means for measuring the body resistance potential between the second electrode pair to measure the internal impedance of the body by conducting electricity between the first electrode pair, means for inputting the body specific information of the subject, Means for extracting health evaluation data such as body fat, lean mass, body fat percentage, water content, basal metabolism, etc., based on the impedance value and the body specifying information. and at least one electrode of the at least one electrode and a second electrode pair of the first electrode pair of the foot which is attached to the apparatus main body with a built-in means and the like for calculating the internal impedance, the apparatus main body In one And foot electrode portion formed, which is connected to the apparatus main body by a cable, the arrangement of the fingers at the time of the first electrode pair of the at least one electrode and the second electrode pair at least one electrode contact In the direction
A health care guideline advice device, comprising: a hand electrode portion provided at a shifted position .