KR960009972A - Human component analysis device using bioelectrical impedance method and analysis method - Google Patents

Human component analysis device using bioelectrical impedance method and analysis method Download PDF

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KR960009972A
KR960009972A KR1019940023440A KR19940023440A KR960009972A KR 960009972 A KR960009972 A KR 960009972A KR 1019940023440 A KR1019940023440 A KR 1019940023440A KR 19940023440 A KR19940023440 A KR 19940023440A KR 960009972 A KR960009972 A KR 960009972A
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impedance
terminal
measuring
measuring device
terminals
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KR0123408B1 (en
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차기철
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4869—Determining body composition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4869—Determining body composition
    • A61B5/4872—Body fat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0487—Special user inputs or interfaces

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  • Health & Medical Sciences (AREA)
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  • Molecular Biology (AREA)
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  • General Engineering & Computer Science (AREA)
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  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

본 발명의 생체전기 임피던스법을 이용한 인체 성분 분석 장치는 좌우측 손바닥과 좌우측 발바닥을 각각 접촉하기 위한 전도성의 전극판(1,2,3,4); 한쌍의 전류단자(C1)와 전압단자(V1)가 연결된 단자(T1)와 다른 한쌍의 전류단자(C2)와 전압단자(V2)가 연결된 단자(T2)를 포함하고, 약 1KHz 내지 1MHz의 주파수의 범위와 01.∼2.0mA 크기에서 채태한 교류전류를 T1과 T2단자 사이에서 보내고 T1과 T2사이에서 전압차를 읽어 전압-전류비로 부터 임피던스를 측정하기 위한 임피던스 측정장치(5); 전도성의 상기 전극판(1,2,3,4)과 상기 임피던스 측정장치(5)의 단자(T1,T2)사이의 전기적 연결을 선택하기 위한 전자스위치(6); 피측정자의 체중을 측정하기 위한 하중측정센서(10); 피측정자의 신장, 나이 , 성별 등을 입력시키기 위한 키보드(11); 상기 임피던스 측정장치(5), 및 하중측정센서(10)를 마이크로프로세서(18)에 인터페이스시키기 위한 앰프 및 필터(15,16)와 A/D 변환기(17); 상기 측정장치와 입력장치로부터 입수된 데이터를 처리하는 마이크로 프로세서(18); 및 상기 처리된 데이타를 표시하기 위한 표시화면(12)으로 구성되는 것을 특징으로 한다.An apparatus for analyzing human body components using the bioelectrical impedance method of the present invention includes conductive electrode plates 1, 2, 3, and 4 for contacting left and right palms and left and right soles, respectively; A pair of current terminals (C 1) and a voltage terminal (V 1) is connected to the terminal (T 1) and the terminal (T 2) the other pair of current terminals (C 2) and a voltage terminal (V 2) is connected, and, Measuring the impedance from the voltage-to-current ratio by sending an alternating current between the T 1 and T 2 terminals with a frequency range of about 1 KHz to 1 MHz and a magnitude of 01. to 2.0 mA, and reading the voltage difference between T 1 and T 2 An impedance measuring device 5; An electronic switch (6) for selecting an electrical connection between the conductive electrode plates (1, 2, 3, 4) and the terminals (T 1 , T 2 ) of the impedance measuring device (5); A load measuring sensor 10 for measuring a weight of the subject; A keyboard 11 for inputting height, age, gender, etc. of the subject; Amplifiers and filters (15, 16) and A / D converters (17) for interfacing the impedance measuring device (5) and the load measuring sensor (10) to a microprocessor (18); A microprocessor (18) for processing data obtained from the measuring device and the input device; And a display screen 12 for displaying the processed data.

Description

생체전기 임피던스법을 이용한 인체 성분 분석 장치 및 그 분석 방법Human component analysis device using bioelectrical impedance method and analysis method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에서의 4개의 전극판 임피던스 측정장치사이의 전기적 배선도이다.1 is an electrical wiring diagram between the four electrode plate impedance measuring device in the present invention.

제2도는 본 발명에서의 2개의 전극판과 임피던스 측정장치사이의 전기적 배선도이다.2 is an electrical wiring diagram between two electrode plates and an impedance measuring device in the present invention.

제3도는 본 발명의 생체전기 임피던스법을 이용한 4개의 전극판을 갖는 인체 성분 분석 장치의 개략적인 사시도이다.3 is a schematic perspective view of a human body component analysis device having four electrode plates using the bioelectrical impedance method of the present invention.

제4도는 본 발명의 생체전기 임피던스법을 이용한 2개의 전극판을 갖는 인체 성분 분석 장치의 개략적인 사시도이다.4 is a schematic perspective view of a human body component analysis device having two electrode plates using the bioelectrical impedance method of the present invention.

제5도는 생체전기 임피던스법을 이용한 제3도의 인체 성분 분석 장치의 한 구체예에 대한 회로 구성도이다.FIG. 5 is a circuit diagram of one embodiment of the apparatus for analyzing human components in FIG. 3 using the bioelectrical impedance method.

제6도는 인체성분 분석 장치의 전극을 인체의 손등과 발등에 부착하여 생체전기 임피던스를 측정하는 종래의 한 구체예를 개략적으로 나타낸 도면이다.6 is a view schematically showing a conventional embodiment of measuring the bioelectrical impedance by attaching the electrode of the human body component analyzer to the back and the foot of the human body.

제7도는 인체의 좌우 팔, 좌우 다리 및 몸통의 임피던스의 모델을 개략적으로 나타낸 도면이다.7 is a view schematically showing a model of the impedance of the left and right arms, left and right legs and the body of the human body.

제8도(a)-(h)는 본 발명에 있어서의 인체 부위별 임피던스 측정을 위한 전기적 연결방법을 개략적으로 나타낸 도면이다.8 (a)-(h) are diagrams schematically showing an electrical connection method for impedance measurement for each part of the human body in the present invention.

Claims (13)

좌우측 손바닥과 좌우측 발바닥을 각각 접촉하기 위한 전도성의 전극판(1,2,3,4); 한쌍의 전류단자(C1)와 전압단자(V1)가 연결된 단자(T1)와 다른 한쌍의 전류단자(C2)와 전압단자(V2)가 연결된 단자(T2)를 포함하고, 약 1KHz 내지 1MHz의 주파수의 범위와 01.∼2.0mA 크기에서 채택한 교류전류를 T1과 T2단자 사이에서 보내고 T1과 T2사이에서 전압차를 읽어 전압-전류비로 부터 임피던스를 측정하기 위한 임피던스 측정장치(5); 전도성의 상기 전극판(1,2,3,4)과 상기 임피던스 측정장치(5)의 단자(T1,T2)사이의 전기적 연결을 선택하기 위한 전자스위치(6); 피측정자의 체중을 측정하기 위한 하중측정센서(10); 피측정자의 신장, 나이 , 성별 등을 입력시키기 위한 키보드(11); 상기 임피던스 측정장치(5), 및 하중측정센서(10)를 마이크로프로세서(18)에 인터페이스시키기 위한 앰프 및 필터(15,16)와 A/D 변환기(17); 상기 측정장치와 입력장치로부터 입수된 데이타를 처리하는 마이크로 프로세서(18); 및 상기 처리된 데이타를 표시하기 위한 표시화면(12)으로 구성되고 전류단자와 전압단자를 동일 전극판에 연결하는 2극 전극법을 이용하여 생체 전기 임피던스를 측정하는 것을 특징으로 하는 인체 성분 분석 장치.Conductive electrode plates 1, 2, 3, and 4 for contacting the left and right palms and the left and right soles, respectively; A pair of current terminals (C 1) and a voltage terminal (V 1) is connected to the terminal (T 1) and the terminal (T 2) the other pair of current terminals (C 2) and a voltage terminal (V 2) is connected, and, about 1KHz to 1MHz frequency range of the 01.~2.0mA sending the alternating current adopted in the size between T 1 and T 2 terminals T 1 and T 2 to read the voltage difference between the voltage-to measure impedance from the current ratio An impedance measuring device 5; An electronic switch (6) for selecting an electrical connection between the conductive electrode plates (1, 2, 3, 4) and the terminals (T 1 , T 2 ) of the impedance measuring device (5); A load measuring sensor 10 for measuring a weight of the subject; A keyboard 11 for inputting height, age, gender, etc. of the subject; Amplifiers and filters (15, 16) and A / D converters (17) for interfacing the impedance measuring device (5) and the load measuring sensor (10) to a microprocessor (18); A microprocessor (18) for processing data obtained from the measuring device and the input device; And a display screen (12) for displaying the processed data, and measuring a bioelectrical impedance using a two-pole electrode method for connecting a current terminal and a voltage terminal to the same electrode plate. 제1항에 있어서, 상기 마이크로프로세서(18)에 의하여 처리된 데이타는 프린트 되는 프린터(6)를 더 포함하는 것을 특징으로 하는 인체 성분 분석 장치.The apparatus of claim 1, further comprising a printer (6) to which data processed by the microprocessor (18) is printed. 제1항에 있어서, 상기 분석 장치가 피측정자의 신장을 측정하기 위한 초음파 신장측정센서(13)를 더 포함하는 것을 특징으로 하는 인체 성분 분석 장치.The apparatus of claim 1, wherein the analysis device further comprises an ultrasonic elongation sensor (13) for measuring the height of the subject. 임피던스 측정장치(5)로부터 나온 전류단자(C1)와 전압단자(V1)가 연결된 단자T1에 연결되어 좌우 손바닥을 접촉하기 위한 일체로 형성된 손전극판(7); 상기 임피던스 측정장치(5)로부터 나온 전류단자(C2)와 전압단자(V2)가 연결된 단자T2에 연결되어 좌우 발바닥을 접촉하기 위한 일체로 형성된 발전극판(8); 좌우 손바닥과 좌우 발바닥 사이의 임피던스를 측정하기 위한 임피던스 측정장치(5); 피측정자의 체중을 측정하기 위한 하중측정센서(10), 피측정자의 신장을 측정하기 위한 초음파 신장측정센서(13); 상기 측정장치로부터 입수된 데이타를 처리하는 마이크로프로세서 및 인터페이스 전자회로판(9); 및 상기 처리된 데이타를 프린트하기 위한 프린터(14)로 구성되고 전류단자와 전압단자를 동시에 전극판에 연결하는 2극 전극법을 이용하여 생체전기 임피던스를 측정하는 것을 특징으로 하는 인체 성분 분석 장치.A hand electrode plate 7 integrally formed to contact the left and right palms by being connected to a terminal T 1 to which the current terminal C 1 and the voltage terminal V 1 connected from the impedance measuring device 5 are connected; A power generation electrode plate (8) integrally formed to contact the left and right soles by being connected to a terminal T 2 to which the current terminal C 2 and the voltage terminal V 2 from the impedance measuring device 5 are connected; Impedance measuring device (5) for measuring the impedance between the left and right palm and the left and right soles; A load measuring sensor 10 for measuring the weight of the subject, and an ultrasonic height measuring sensor 13 for measuring the height of the subject; A microprocessor and interface electronic circuit board (9) for processing data obtained from said measuring device; And a printer (14) for printing the processed data and measuring the bioelectrical impedance using a two-pole electrode method for simultaneously connecting a current terminal and a voltage terminal to an electrode plate. 제4항에 있어서, 상기 분석 장치가 피측정자의 신장, 나이, 성별 등을 입력시키기 위한 키보드(11)를 더 포함하는 것을 특징으로 하는 인체 성분 분석 장치.The apparatus of claim 4, wherein the analysis device further comprises a keyboard (11) for inputting the height, age, gender, etc. of the subject. 제4항에 있어서, 상기 분석 장치가 상기 처리된 데이터를 표시하기 위한 표시화면(12)을 더 포함하는 것을 특징으로 하는 인체 성분 분석 장치.5. The human body analysis device according to claim 4, wherein the analysis device further comprises a display screen (12) for displaying the processed data. 생체전기 임피던스를 측정하는 방법에 있어서, 임피던스 측정장치(5)로부터 나온 한쌍의 전류단자(C1)와 전압단자(V1)가 연결된 단자T1에 좌우 손바박과 좌우 발바닥이 접촉하는 4개의 전극판 (1,2,3,4)중에서 어느 하나 또는 2개의 전극판이 전자스위치(6)에 의하여 연결되고, 상기 임피던스 측정장치(5)로부터 나온 다른 한 쌍의 전류단자(C2)와 전압단자(V2)가 연결된 단자 T2에 좌우 손바박과 좌우 발바닥이 접촉하는 4개의 전극(1,2,3,4)중 T1에 연결되지 않은 전극판중에서 어느 하나 또는 2개의 전극판이 전자스위치(6)에 의하여 연결되고, 상기전극판(1,2,3,4)에 손바닥과 발바닥을 접촉하여 T1과 T2가 연결된 전극판시이의 생체임피던스를 2극 전극법에 의하여 측정하는 방법In the method for measuring the bioelectrical impedance, four left and right hand bark and left and right foot contact with the terminal T 1 to which a pair of current terminals C 1 and voltage terminals V 1 from the impedance measuring device 5 are connected. One or two electrode plates of the electrode plates 1, 2, 3, and 4 are connected by an electronic switch 6, and a pair of current terminals C 2 and voltage from the impedance measuring device 5 are connected. Of the four electrodes 1, 2, 3, and 4 in which the left and right hand bars and the left and right soles contact the terminal T 2 to which the terminal V 2 is connected, any one or two of the electrode plates which are not connected to T1 are electronic switches. It is connected by 6, and how to contact the palm of the hand and soles of the feet to the electrode plate (1, 2, 3, 4) determined by the biological impedance of an electrode pansiyi the T 1 and T 2 connected to the second pole electrode method 생체전기 임피던스를 측정하는 방법에 있어서, 임피던스 측정장치(5)로부터 나온 한쌍의 전류단자(C1)와 전압단자(V1)가 연결된 T1에 좌우 손바닥이 접촉하는 일체의 손전극판(7)에 연결되고 연결되고, 상기 임피던스 측정장치(5)로부터 나온 다른 한 쌍의 전류단자(C2)와 전압단자(V2)가 연결된 단자 T2에 좌우 발바닥이 접촉하는 일체의 발전극판(8)에 연결되는 것을 특징으로 하는 2극 전극법에 의하여 생체전기 임피던스를 측정하는 방법.In the method for measuring the bioelectrical impedance, the integrated hand electrode plate 7 in which the left and right palms are in contact with T 1 connected to a pair of current terminals C 1 and voltage terminals V 1 from the impedance measuring device 5. And a power generating plate 8 in which left and right soles are in contact with a terminal T2 connected to and connected to another pair of current terminals C 2 and voltage terminals V 2 from the impedance measuring device 5. Method for measuring the bioelectrical impedance by a two-pole electrode method characterized in that connected to. 전자 스위치(6)를 통하여 단자 T1및 T2에 연결된 전극판(1,2,3,4)에서 좌우 손바우 발바닥을 접촉시키고; 마이크로프로세서(18)에 의하여 제어되는 전자 스위(6)의 작동으로부터 임피던스 측정장치(5)에 의하여 인체 부위간의 각각의 임피던스를 측정하고; 하중측정센서(10)에 의하여 체중을 측정하고; 키보드(11)를 통하여 신장, 나이, 및 성별을 입력시키고; 마이크로프로세서(18)에 의하여 체액의 양(TBW), 지방이외의 성분(FFM) 및 비만도(%BF)를 분석하고; 그리고 상기 분석된 데이터를 표시하면(4)에 표시하는 단계로 구성되는 것을 특징으로 하는 인체 성분 분석 장치.Contacting the left and right hand sole soles at the electrode plates 1, 2, 3, 4 connected to the terminals T 1 and T 2 via the electronic switch 6; Measuring respective impedances between the human body parts by the impedance measuring device 5 from the operation of the electronic switch 6 controlled by the microprocessor 18; The weight is measured by the load measuring sensor 10; Input height, age, and gender via the keyboard 11; Analyzing the amount of body fluid (TBW), non-fat components (FFM), and obesity (% BF) by the microprocessor 18; And (4) displaying the analyzed data. 제9항에 있어서, 상기 인체 부위간의 각각의 임피던스를 측정하는 단계가 임피던스 측정장치(5)로부터 나온 한쌍의 전류단자(C1)와 전압단자(V1)가 연결된 단자 T1에 좌우 손바닥과 좌우 발바닥이 접촉하는 4개의 전극판(1,2,3,4)중에서 어느 하나 또는 2개의 전극판이 전자스위치(6)에 의하여 연결되고, 상기 임피던스 측정장치(5)로부터 나온 다른 한 쌍의 전류단자(C2)와 전압단자(V2)가 연결된 단자 T2에 좌우 손바닥과 좌우 발바닥이 접촉하는 4개의 전극판(1,2,3,4)중 T1에 연결되지 않은 전극판중에서 어느 하나 또는 2개의 전극판이 전자스위치(6)에 의하여 연결되고, 상기 전극판 (1,2,3,4)에 손바닥과 발바닥을 접촉하여 T1과 T2가 연결된 전극판사이의 생체 임피던스를 2극 전극법에 의하여 측정하는 것을 특징으로 하는 인체 성분 분석 방법.10. The method according to claim 9, wherein the step of measuring the impedance between the human body parts comprises the left and right palms connected to a terminal T 1 to which a pair of current terminals C 1 and voltage terminals V 1 connected from the impedance measuring apparatus 5 are connected. One or two of the four electrode plates 1, 2, 3, and 4 in contact with the left and right soles are connected by an electronic switch 6, and the other pair of currents from the impedance measuring device 5 Among the four electrode plates 1, 2, 3, and 4 in which the left and right palms and the left and right soles contact the terminal T 2 to which the terminal C 2 and the voltage terminal V 2 are connected, any of the electrode plates not connected to T 1 . One or two electrode plates are connected by an electronic switch 6, and the electrode plates 1, 2, 3, and 4 are brought into contact with the palm of the hand and the sole of the sole, and the bioimpedance between the electrode plates with T 1 and T 2 connected to each other is reduced. A human body component analysis method characterized by measuring by an electrode method. 제9항 또는 제10항에 있어서, 상기 분석된 데이타를 프린터(14)에 의하여 프린트하는 단계를 더 포함하는 것을 특징으로 하는 인체 성분 분석 방법.The method of claim 9 or 10, further comprising the step of printing the analyzed data by a printer (14). 임피던스 측정장치(5)에 단자 T1에 연결되고 일체로 형성된 손전극판(7)에 좌우 손바닥과 단자 T2에 연결되고 일체로 형성된 발전극판(8)에 좌우 발바닥을 접촉시키고; 임피던스 측정장치(5)에 의하여 좌우 손바닥과 발바닥 사이의 임피던스를 측정하고; 하중측정센서(10)에 의하여 체중을 측정하고; 초음파 신장측정센서(13)에 의하여 신장을 측정하고; 상기 측정장치로부터 입수된 데이타를 마이크로프로세서 및 인터페이스 전자회판(9)에 의하여 체액의 양(TBW), 지방이외의 성분(FFM) 및 비만도(%BF)를 분석하고; 그리고 상기 분석된 데이타를 프린터(14)에 의하여 프린트하는 단계로 구성되는 것을 특징으로 하는 인체 성분 분석 방법.The left and right soles are brought into contact with the left and right palms and the power generation electrode plate 8 connected to the terminal T 2 and formed integrally with the hand electrode plate 7 connected to the terminal T 1 and integrally formed with the impedance measuring device 5; Measuring the impedance between the left and right palms and the sole by the impedance measuring device 5; The weight is measured by the load measuring sensor 10; The height is measured by the ultrasonic elongation measuring sensor 13; Analyzing the amount of body fluid (TBW), non-fat components (FFM), and obesity (% BF) by means of a microprocessor and an interface electronic plate (9); And printing the analyzed data by a printer (14). 제12항에 있어서, 상기 좌우 손바닥과 좌우 발바닥사이의 임피던스를 측정하는 단계가 임피던스 측정장치(5)로부터 나온 한 쌍의 전류단자(C1)와 전압단자(V1)가 연결된 단자 T1에 좌우 손바닥이 접촉하는 일체의 손전극판(7)에 연결되고, 상기 임피던스 측정장치(5)로부터 나온 다른 한 쌍의 전류단자(C2)와 전압단자(V2)가 연결된 단자 T2에 좌우 발바닥이 접촉하는 일체의 발전극판(8)에 연결되어 2극 전극법에 의하여 생체 전기 임피던스를 측정하는 것을 특징으로 하는 인체 성분 분석 방법.The method of claim 12, wherein the step of measuring the impedance between the left and right palms and the left and right soles is performed at the terminal T 1 to which the pair of current terminals C 1 and the voltage terminal V 1 connected from the impedance measuring device 5 are connected. The left and right palms are connected to an integrated hand electrode plate 7 which is in contact with each other, and the left and right terminals T 2 connected to another pair of current terminals C 2 and voltage terminals V 2 from the impedance measuring device 5. Human body component analysis method characterized in that the bioelectric impedance is measured by a two-pole electrode method is connected to the integrated power pole plate (8) that the sole is in contact. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940023440A 1994-09-15 1994-09-15 Method and apparatus for determining body composition using bioelectrical impedance analysis KR0123408B1 (en)

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