KR101296072B1 - Bioelectrical Impedance Analysis Apparatus - Google Patents

Abstract

The present invention relates to a bioimpedance measuring device, by applying a current to the human body of the subject, by measuring the bio-impedance formed in the human body by this current and at the same time continuously irradiating light along the longitudinal direction of the human body of the subject In addition, the image of the contour formed around the human body by the irradiated light, and by obtaining the circumference information for each part of the human body from the contour image of the human body so as to determine a more accurate state of the human body.

Human body, bioimpedance measurement, circumference measurement, power generation pole, hand electrode, contour, light

Description

Bioelectrical Impedance Analysis Apparatus

1 is a perspective view showing an example of a conventional bioimpedance measuring device

2 is a schematic diagram of a bio-impedance measuring device according to the present invention

Figure 3 is a perspective view showing the configuration according to an embodiment of the bioimpedance measuring apparatus according to the present invention

4 is a view showing a light irradiation state of the bioimpedance measuring apparatus according to the present invention

<Explanation of symbols for the main parts of the drawings>

100: bioimpedance measuring device 110: power generation pole

120: impedance measuring unit 130: light irradiation unit

140: recording unit 150: control unit

160: light traveling blocking unit 170: transfer unit

180: fixing part 182: light diffusing part

184: output unit 186: communication unit

188: weight measuring unit 190: hand electrode

192: control panel 200: human body

The present invention relates to a bio-impedance measuring device, and in particular, having a scan function of the body circumference information in addition to the bio-impedance measurement function for identifying biometric information such as body composition, the bio-impedance measurement that can determine the state of the subject more accurate Relates to a device.

As a method of analyzing body composition, a low-cost, harmless bioelectrical impedance analysis method (Bioelectrical Impedance Analysis) is widely used. The bioimpedance method sends a weak alternating current into the human body to measure the electrical resistance or impedance of the human body, and measures the height and weight of the subject, thereby calculating biometric information such as the amount of fluid, muscle mass, and fat mass of the subject. It is a way.

1 is a perspective view showing an example of a conventional bioimpedance measuring device. As shown in the figure, the bioimpedance measuring apparatus includes a power generation electrode 1, a hand electrode 2, an impedance measuring unit (not shown) and a controller (not shown).

The power pole 1 is a part in contact with each of the soles and the heel of the person to be measured, one of the power pole 1 is an electrode (1a) for applying a current to the human body, the other is measuring the voltage It is an electrode 1b for this.

The hand electrode 2 is a part in contact with each hand of the subject to be measured. Although not shown in the drawing, the hand electrode 2 also includes an electrode for applying a current to the human body and an electrode for measuring a voltage. have.

The impedance measuring unit is an impedance measuring circuit for measuring the bioimpedance of the subject, and is moduled inside the bioimpedance measuring apparatus.

The controller controls the overall apparatus, and generates a bioimpedance measurement result by processing the bioimpedance measured by the impedance measuring unit, and is installed in the form of an IC chip inside the bioimpedance measuring apparatus.

In the conventional bioimpedance measuring device having such a configuration, when the subject touches the subject's foot on the power generation electrode 1 and the hand electrode 2 on the hand electrode 2 for the measurement of the bioimpedance, under the control of the controller, A current is applied to the human body of the subject through the current application electrode of the power generation electrode 1 and / or the hand electrode 2 and connected to the voltage measurement electrode of the power generation electrode 1 and / or the hand electrode 2. The bioimpedance is measured through the impedance measuring unit, and the measured bioimpedance result is converted into biometric information such as body composition or obesity including body fat by the control unit.

On the other hand, each part of the human body, such as waist or hip circumference can also be used as data for measuring body fat or obesity. In general, a method using a tape measure has been used as a method for measuring waist circumference or hip circumference of a human body. However, when measuring the waist or hip circumference of the human body using a tape measure, the measurement result depends on various external factors such as how much force the measurer gives to the tape measure and whether the subject inhales or exhales. There was a problem that the measurement error is very severe.

Therefore, the present inventors have a technique for scanning the circumference of the human body almost independently of the external environment of the measurement person or the measurement object by using the optical technology in addition to the measurement function of the biological impedance in order to more accurately determine the state of the measurement object. The research on the human body circumference using the optical technology was applied to the bioimpedance measuring device to propose a bioimpedance measuring technology that can obtain clinical information of the human body more efficiently.

The present invention has been invented under the above-described object, and provides a bioimpedance measuring device capable of obtaining clinical information for each part of the human body more efficiently by combining a circumferential scan technique using optical technology with a bioimpedance measuring technology. The purpose.

According to an aspect of the present invention for achieving the above object, the bioimpedance measuring apparatus according to the present invention by applying a current to the human body of the subject to measure the body impedance formed in the human body by this current and at the same time Irradiating light continuously along the longitudinal direction of the measurer's human body, photographing contour images formed around the human body by the irradiated light, and obtaining circumference information of the human body from the photographed contour images of the human body do.

Therefore, the present invention has the advantage that it is possible to obtain clinical information for each part of the human body more efficiently by applying the circumference scan technology using the optical technology to the bioimpedance measuring device.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce.

2 is a schematic diagram of a bioimpedance measuring apparatus according to the present invention, Figure 3 is a perspective view showing a configuration according to an embodiment of the bioimpedance measuring apparatus according to the present invention, Figure 4 is a bioimpedance measuring apparatus according to the present invention It is a figure which shows the light irradiation state.

The bioimpedance measuring apparatus 100 according to the present invention is a bioimpedance measuring means for measuring the bioimpedance formed in the human body by applying a current to the human body of the subject, and continuously image the contour of the subject, and from these images And perimeter information scanning means for obtaining perimeter information of the human body.

As shown in FIG. 2, the bioimpedance measuring means includes a power generation pole 110 and an impedance measuring unit 120, and the circumference information scanning means is formed in the longitudinal direction of the human body of the subject. At least one light irradiator 130 continuously irradiating light while moving downward, and is installed at a different height from the light irradiator 130 to form contours of the human body formed by light irradiated from the light irradiator 130. At least one photographing unit 140 to photograph and control the overall device, to analyze the body composition from the measured bioimpedance to generate a bioimpedance measurement result, contour images of the human body taken by the photographing unit 140 It comprises a control unit 150 for analyzing the contour circumference information of the human body from.

The power generation electrode 110 is a part contacting each of the feet of the person to be measured, and includes at least one current applying electrode 111 and at least one voltage measuring electrode 112 arranged to be spaced apart from each other. The current applying electrode 111 is a terminal for connecting a power source (not shown) to apply a current to the human body through the foot of the subject in contact with the current applying electrode 111. The voltage measuring electrode 112 is a terminal for connecting an impedance measuring circuit to detect a human body resistance (bioimpedance) flowing through the human body through a foot of a person who is in contact with the voltage measuring electrode 112.

The impedance measuring unit 120 is an impedance measuring circuit that measures the bioimpedance of the subject by the current applied to the power generating pole 110, and is moduled inside the bioimpedance measuring apparatus 100.

At least one light irradiation unit 130 is installed, and continuously irradiates light while moving up or down along the longitudinal direction of the human body 200 of the subject. At this time, it is preferable that the light irradiator 130 irradiates light continuously in the horizontal direction of the human body 200. The light irradiation unit 130 may be implemented to irradiate light such as visible light, infrared light, etc. classified according to the wavelength of light, but a laser beam that emits energy as a single wavelength by amplifying energy in gas molecules or electrons in a solid. Is preferably implemented. Since the laser beam has optical characteristics such as monochromaticity, coherence, high luminance, directivity, and energy concentration, the laser beam forms a clear outline when irradiated to the human body.

On the other hand, by implementing the light irradiation unit 130 to irradiate the light to the human body at a plurality of locations with respect to the human body can minimize the error according to the position of the human body, preferably the light irradiation unit 130 on both sides of the human body It is recommended to install plurally symmetrically. That is, when the light is irradiated in the horizontal direction of the human body from a plurality of positions around the human body, the contour is formed on the entire body circumference, and the contour formed around the human body becomes constant regardless of the position of the human body, The error due to the position of can be minimized.

At least one photographing unit 140 is installed at a different height from the light irradiation unit 130 to photograph contours of a human body formed by light emitted from the light irradiation unit 130. In this case, the reason why the photographing unit 140 is installed at a different height from the light irradiation unit 130 is to accurately photograph the contour shape formed on the human body. When the photographing unit 140 is installed at the same height as the light irradiation unit 130, the contour formed on the human body is photographed in a straight line, and thus the contour shape cannot be determined.

Although the photographing unit 140 may use a special camera such as an infrared camera according to the type of light irradiated by the light irradiating unit 130, it is preferable to employ a CCD camera that can be easily used recently. When a laser beam is used as the light irradiated by the light irradiator 130, a CCD camera capable of obtaining a clear image quality by transferring an image exposed to a charged coupled device (CCD) into an electrical form is transmitted. By adopting it, it is possible to take a contour image formed around the human body at a lower cost than a special camera.

The controller 150 is installed in the form of an IC chip inside the bioimpedance measuring apparatus 100 to control the overall apparatus. The controller 150 generates a body impedance measurement result by analyzing the body composition from the bioimpedance measured by the impedance measuring unit 120, and from the contour images of the human body photographed by the photographing unit 140. Analyze the information around the contour of the. At this time, the contour circumference information of the human body analyzed by the controller 150 may be the size of the contour circumference of the human body, or may be the shape of the contour circumference of the human body. The perimeter of each part of the human body can be known from the contour perimeter information of the human body analyzed by the controller 150.

For example, the controller 150 may measure the perimeter of each contour of the human body using a software algorithm for measuring the length of the closed curve. For example, the contour images of the human body 200 photographed by the photographing unit 140 are processed by software to extract only the contour portions, and to obtain x, y coordinates of each point constituting the extracted contour lines, The distance between two neighboring points can be known by obtaining the x-coordinate difference and the y-coordinate difference value between each point, and the approximation of the contour circumferences of the human body 200 can be calculated by obtaining the sum of the distances between the neighboring points. Can be.

Referring to the operation effect of the bioimpedance measuring device 100 according to the present invention having the above configuration, when the person stepped on the power generation pole 110, the current application electrodes arranged to be spaced apart from each other The feet of the subject are in contact with the 111 and the voltage measuring electrode 112. In this state, the current is applied to the human body of the subject through the current applying electrode 111 under the control of the controller 150, and the impedance is measured through the impedance measuring unit 120 connected to the voltage measuring electrode 112. The bio impedance of the measurer is measured.

At the same time, when light is continuously irradiated along the longitudinal direction of the human body 200 by the light irradiator 130, outlines are sequentially formed around the human body by the light, and the contour images are taken by the photographing unit 140. ), The perimeter of each part of the human body is scanned. Since the controller 150 can analyze the circumference information of each part of the human body from the contour images of the captured human body, the size and shape of the circumference of each part of the human body can be determined. It is possible to accurately measure the circumference of each part such as the waist circumference or the hip circumference of the human body almost regardless of the external environment.

Therefore, the bioimpedance measuring apparatus 100 according to the present invention combines the body circumference measurement technology using optical technology with the bioimpedance measurement technology, such as the waist circumference or hip circumference of the subject together with the biometric information of the subject such as the body composition. Perimeter information can be obtained for each part, which has the advantage of identifying a more accurate state for each part of the human body.

With reference to Figure 3 looks at the mechanical configuration according to an embodiment of the bioimpedance measuring apparatus 100 according to the present invention.

As shown in FIG. 3, the bioimpedance measuring apparatus 100 according to the present invention may support the bottom of the human body 200 while supporting the bottom, but the current applying electrode 111 and the voltage measuring electrode 112. ) Is provided with a lower body 10 in which the power generation poles 110 are arranged to be spaced apart from each other, and the light irradiation unit 130 and the photographing unit 140 are installed, and the upper body 20 moving up or down in a specific section. ) The impedance measuring unit 120 and the controller 150 shown in FIG. 2 are installed in the lower body 10 or the upper body 20.

At this time, the upper body 20 has a substrate 21 having a shape such that a donut shape having one side open, a 'U' shape, etc. is opened, and a human body can enter and exit the opened part, and the substrate 21. At least one light irradiation unit 130 is provided on the inside and at least one imaging unit 140 is provided at a different height from the light irradiation unit 130 inside the substrate (21). On the other hand, the upper body 20 having the substrate 21 of the open shape on one side may further include an opening and closing portion 22 for opening and closing the opened portion.

Therefore, when measuring the clinical information of the human body 200 as shown in FIG. When the measurement button 196a is pressed while the foot contacts the 111 and the voltage measuring electrode 112, a current is applied to the human body of the subject through the current applying electrode 111, and the voltage measurement The biological impedance of the subject is measured through the impedance measuring unit 120 connected to the electrode 112.

In addition, the substrate 21 of the upper body 20 moves up or down in a specific section, and the light irradiation unit 130 installed inside the substrate 21 continuously transmits light along the longitudinal direction of the human body. Will be investigated. Then, outlines are formed in the human body in turn by the light irradiated to the human body, and the contour images of the human body are continuously photographed through the photographing unit 140 installed inside the substrate 21 of the upper body 20. The controller 150 may analyze the contour images of the photographed human body to obtain circumference information for each part of the human body, for example, the circumference size or shape of the human body. Therefore, the present invention can measure the body impedance of the subject, and at the same time, it is possible to accurately measure the body circumference of each part such as the waist circumference or the hip circumference of the human body using optical technology almost irrespective of the external environment of the subject or the subject. Will be.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring device 100 according to the present invention may further include a light traveling blocking unit 160. The light traveling blocking unit 160 is irradiated from the light irradiation unit 130 to block the progress of the light passing through the human body 200 of the subject. This is the body 200 to prevent various problems that may occur when the light is irradiated from the light irradiation unit 130 and the light passing through the human body 200 continues, for example, discomfort or malfunction of other electronic devices. It is to be able to block the light progress by a method such as absorbing the light passing through the light progress blocking unit 160 or diffuse reflection treatment.

For example, as shown in FIG. 3, the light traveling blocking unit 160 is a substrate on the side opposite to the light irradiation unit 130 installed inside the substrate 21 of the upper body 20 based on the human body. 21) It is preferable to install inside. At this time, by implementing the inside of the substrate 21 on the side opposite to the light irradiation unit 130 to a material that absorbs or diffused light may be implemented so that the light traveling blocking unit 160 is the inside of the substrate 21 itself. . Therefore, the present invention can effectively block the progress of the light irradiated from the light irradiating unit 130 through the light traveling blocking unit 160 and out of the human body 200.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring device 100 according to the present invention may further include a transfer unit 170. The transfer unit 170 transfers the light irradiation unit 130 up or down in a specific section so as to irradiate light to the human body in the longitudinal direction of the human body. That is, in order to measure the circumference of each part of the human body, it is necessary to scan the entire circumference of the human body, and in order to continuously irradiate light to the entire human body of the subject, the light irradiation unit 130 must be moved up or down in a specific section. And, the transfer unit 170 serves to transfer the light irradiation unit 130 up or down in a specific section.

In the case of FIG. 3, since the light irradiation part 130 is provided inside the substrate 21 of the upper body 20, the transfer part 170 of the substrate 21 of the upper body 20 with respect to the lower body 10. Since the light emitter 130 is moved up or down at specific intervals, the light irradiation unit 130 may be moved up or down at specific intervals. At this time, the transfer unit 170 is a semi-automatic way that the light irradiation unit 130 is moved up or down at a specific interval interval automatically by a user button operation, etc., the light irradiation unit 130 is automatically specified without a user's operation Each can be implemented automatically, moving up or down at intervals.

For example, in the case of the semi-automatic conveying unit 170, the measurement button 196a is installed at an appropriate position of the upper body 20, and when the measurer or the subject presses the measurement button 196a, a motor (not shown in the drawing) is shown. By moving the substrate 21 of the upper body 20 up or down in a specific section by a driving or the like method, the light irradiation part 130 installed inside the substrate 21 of the upper body 20 is imaged in a specific section. Or to be moved downward.

In addition, in the case of the automatic transfer unit 170, by detecting whether the feet of the subject is in contact with the power generating pole 110 of the lower body 10 is correctly contacted or if the motor immediately in a certain order (not shown in the drawing) By moving the substrate 21 of the upper body 20 up or down in a specific section by a driving method or the like, the light irradiation unit 130 installed inside the substrate 21 of the upper body 20 moves up or down in the specific section. It can also be moved.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring device 100 according to the present invention may further include a fixing unit 180. The fixing unit 180 simultaneously fixes the light irradiation unit 130 and the imaging unit 140 such that a relative position between the light irradiation unit 130 and the imaging unit 140 is always constant. That is, when the relative positions of the light irradiation unit 130 for irradiating light to the human body and the image capture unit 140 for capturing the contour image of the human body formed by the light irradiated to the human body are changed, the contour lines photographed at the same magnification. Even the image is different in size. If the size of the captured contour image is different even at the same magnification, this results in a circumferential measurement error. Therefore, it is important to always maintain the same relative position between the light irradiation unit 130 and the photographing unit 140. Therefore, the bioimpedance measuring apparatus 100 according to the present invention always maintains a constant position between the light irradiation unit 130 and the photographing unit 140 through the fixing unit 180.

For example, the light emitting unit 130 and the photographing unit 140 may be fixedly installed inside the substrate 21 of the upper body 20 so that the substrate 21 itself may serve as the fixing unit 180. Alternatively, the light irradiation unit 130 and the fixing unit 180 in which the photographing unit 140 is fixed may be installed inside the substrate 21 of the upper body 20. By doing so, the relative position between the light irradiation unit 130 and the imaging unit 140 is always kept constant, so that the contour image size photographed at the same magnification is different depending on the relative position between the light irradiation unit 130 and the imaging unit 140. Since is not generated, it is possible to prevent the circumferential measurement error.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring apparatus 100 according to the present invention may further include a light diffusion unit 182. The light diffusion unit 182 diffuses the light emitted from the light irradiation unit 130 in the horizontal direction to form a slit beam. For example, when the light irradiated to the human body from the light irradiation unit 130 is a laser beam, since it has energy concentration due to the characteristics of the laser beam, in order to irradiate light linearly to a wide range of the human body by spreading it by slit beam (Slit Beam must be formed. Therefore, the bioimpedance measuring apparatus 100 according to the present invention diffuses the light emitted from the light irradiation unit 130 in the horizontal direction through the light diffusion unit 182 to form a slit beam so that the light is evenly distributed to the human body. can do.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring device 100 according to the present invention may further include an output unit 184. The output unit 184 outputs the bioimpedance measurement result generated by the controller 150 or contour circumference information of the human body. In this case, the output unit 184 may be a display unit for displaying the bioimpedance measurement result or the contour circumference information of the human body, and a voice output device for voice outputting the bioimpedance measurement result or the contour circumference information of the human body (not illustrated). It may be a printing device (not shown in the drawings) which outputs a document of the body impedance measurement result or the contour circumference information of the human body. That is, this embodiment is an embodiment in which the measurement result can be confirmed by the measurer or the subject by outputting the bioimpedance measurement result generated by the controller 150 or information on the contour circumference of the human body.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring device 100 according to the present invention may further include a communication unit 186. The communication unit 186 transmits the bioimpedance measurement result generated by the control unit 150 or the contour circumference information of the human body to the network. That is, this embodiment is a method for measuring the bioimpedance measured by the bioimpedance measuring apparatus 100 according to the present invention or contour information of the human body through a wired or wireless communication interface, such as a personal computer or an obesity measuring apparatus. In one embodiment it can be transmitted to use. At this time, the communication unit 186 is in the form of a separate IC chip integrally or connected to the control unit 150 of the IC chip type installed in the lower body 10 or the upper body 20 shown in FIG. Is installed.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring device 100 according to the present invention may further include a weight measuring unit 188. The weight measuring unit 188 measures the weight of the subject. That is, the present embodiment is an embodiment in which the body impedance measuring device capable of measuring the weight is additionally configured in the bioimpedance measuring apparatus 100 so that the body weight can be measured simultaneously with the measurement of the body impedance and the perimeter of each part of the human body. . The weight measuring unit 188 is installed on the lower body 10 shown in FIG. 3 and measures the weight of the subject when the subject climbs on the lower body, and the controller 150 outputs the measured weight. The weight of the subject is measured by outputting through the unit 184.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring device 100 according to the present invention may further include a hand electrode 190. The hand electrode 190 is in contact with each of both hands of the subject, and although not illustrated in the drawing, the hand electrode 190 includes an electrode for applying a current to the human body and an electrode for measuring a voltage. Since the hand electrode 190 operates with the power generation electrode 110 described above, the eight-point electrode method can be applied, and thus the impedance can be measured for each part of the human body. For example, the hand electrode 190 may be installed to protrude above the substrate 21 of the upper body 20 as shown in FIG. 3 so that the subject can conveniently hold the hand electrode 190 with both hands. have.

Meanwhile, according to an additional aspect of the present invention, the bioimpedance measuring device 100 according to the present invention may further include an operation unit 192. The operation unit 192 is a portion that receives various user operations. For example, the operation unit 192 includes a measurement button 196a, a power button 196b, and the like as shown in FIG. Accordingly, the measurer or the person to be measured can input various control commands of the bioimpedance measuring apparatus 100 according to the present invention by operating the operation unit 192.

As described above, the present invention combines the measurement of the body circumference using optical technology with the bioimpedance measurement technology to obtain the circumference information of each part of the body such as the waist circumference or the hip circumference of the subject together with the biometric information of the subject such as the body composition. Since it is possible to more accurately grasp the state of the human body, it is possible to achieve the desired purpose proposed in the present invention.

As described above, the bioimpedance measuring device according to the present invention combines the body circumference measurement technology using optical technology with the bioimpedance measurement technology to measure the waist circumference or the hip circumference of the subject together with the biometric information of the subject such as the body composition. The perimeter information of each part of the human body can be obtained to have a useful effect of determining the state of the human body more accurately.

Although the present invention has been described with reference to the preferred embodiments, which are referred to by the accompanying drawings, which are merely exemplary, and any person skilled in the art to which the present invention pertains may have various modifications and equivalents. It will be appreciated that embodiments are possible.

Claims (16)

delete In the bioimpedance measuring device for measuring the biological impedance formed in the human body by applying a current to the human body of the subject, The bioimpedance measuring device is: Perimeter information scanning means for continuously imaging the contours of the subject to obtain perimeter information of the human body from these images; Including, The perimeter information scanning means: At least one light irradiation unit continuously irradiating light while moving up or down along the longitudinal direction of the human body of the subject; At least one imaging unit installed at a height different from that of the light irradiation unit to photograph contours of a human body formed by light emitted from the light irradiation unit; A control unit which controls the overall apparatus, analyzes body composition from the measured bioimpedance to generate a bioimpedance measurement result, and analyzes contour periphery information of the human body from contour images of the human body photographed by the photographing unit; Biometric impedance measurement apparatus comprising a. The method according to claim 2, The bioimpedance measuring device is: A transfer unit configured to transfer the light irradiation unit up or down along a longitudinal direction of the human body in a specific section; Bioimpedance measuring device further comprising. The method of claim 3, The light irradiation unit: A light diffusion unit configured to diffuse the irradiated light in a horizontal direction of the human body to form a slit beam; Biometric impedance measurement apparatus comprising a. The method of claim 4, The bioimpedance measuring device is: A light traveling blocker which blocks the progress of the light irradiated from the light irradiator to the body of the subject; Bioimpedance measuring device further comprising. The method of claim 5, The light irradiation unit: A bioimpedance measuring device for irradiating a laser beam. The method according to claim 2, The bioimpedance measuring device is: An output unit configured to output bioimpedance measurement results or contour circumference information generated by the controller; Bioimpedance measuring device further comprising. The method of claim 7, The output unit: A display unit which displays a screen of bioimpedance measurement results or contour circumference information of a human body; Biometric impedance measurement apparatus comprising a. The method according to claim 2, The bioimpedance measuring device is: A communication unit configured to output the bioimpedance measurement result generated by the controller or contour circumference information of the human body to a network; Bioimpedance measuring device further comprising. The method according to any one of claims 2 to 9, The bioimpedance measuring device is: A weight measuring unit which measures a weight of the subject; Bioimpedance measuring device further comprising. The method according to any one of claims 2 to 9, The bioimpedance measuring device is: A power generating pole contacting each of the feet of the subject to measure the impedance formed in the living body of the subject; An impedance measuring unit which measures a body impedance of the subject by a current applied to the power generation pole; Biometric impedance measurement apparatus comprising a. The method of claim 11, The bioimpedance measuring device is: A hand electrode in contact with each of both hands of the subject; Bioimpedance measuring device further comprising. The method according to any one of claims 2 to 9, The photographing unit: A bioimpedance measuring device, characterized in that the CCD camera. The method according to any one of claims 2 to 9, The contour circumference information of the human body is: Biometric impedance measurement apparatus characterized in that the circumference size or circumference shape of the contour of the human body. The method according to claim 2, The bioimpedance measuring device is: A fixing member for simultaneously fixing the light irradiation unit and the imaging unit such that a relative position between the light irradiation unit and the imaging unit is always constant; Bioimpedance measuring device further comprising. The method according to claim 2, The bioimpedance measuring device is: An operation unit for user input; Bioimpedance measuring device further comprising.

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