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Apparatus and method for measuring bio-impedance

A technology of bio-impedance and measurement devices, which is applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems such as difficulties in the correct measurement of bio-impedance, and achieve the effect of accurate and precise acquisition and enrichment of biological information

Active Publication Date: 2010-10-13
BIOSPACE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, noise may also be introduced into the power supply of the measuring device
Therefore, the correct determination of sensitive bioimpedance becomes more difficult

Method used

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  • Apparatus and method for measuring bio-impedance
  • Apparatus and method for measuring bio-impedance

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Embodiment Construction

[0023] The above-mentioned and additional aspects of the present invention will be clarified by the embodiments described later. Hereinafter, embodiments of the present invention will be described with reference to attached drawings and described preferred embodiments so that those skilled in the art can understand and reproduce them.

[0024] figure 1 It is a diagram schematically illustrating the overall configuration of a bioimpedance measurement device according to an embodiment of the present invention. As shown in the figure, an apparatus for measuring bioimpedance according to an embodiment includes a plurality of electrodes 910 and 930 in contact with body parts of a person to be measured, generates an input electrical signal for measuring bioimpedance, and provides the input electrical signal to The input signal generator 100 for driving the electrode 910 among the plurality of electrodes, the impedance measurement unit 300 for measuring bioimpedance based on the out...

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Abstract

The present invention provides an apparatus and a method for measuring bio-impedance. The apparatus for measuring bio-impedance comprises the following components: a plurality of electrodes contacted with the body part of a member being measured, an input signal generation part which generates an input electric signal for measuring the bio-impedance and provides to a driving electrode in the plurality of electrodes, an impedance measuring part which measures the bio-impedance through the output electric signal output from a read-out electrode in the plurality of electrodes, and a display partfor displaying the measuring state and result. The input signal generation part comprises a modulating part which is used for modulating the signal. The impedance measuring part comprises a demodulating part which demodulates the output electric signal with a mode corresponding with the modulating part. The apparatus for measuring bio-impedance according to the invention can effectively remove the effect of the noise added in a living creature as the exerted driving signal is modulated and the output measuring signal is demodulated.

Description

technical field [0001] The invention relates to a device for measuring biological impedance. Background technique [0002] In order to measure body fat and the like, measuring devices for bioimpedance are widely used. In the composition of the body, muscle has more water, but fat has no water. Therefore, the bioimpedance value is lower with more muscle and higher with more fat. By measuring bioimpedance, the body water content, muscle mass and fat mass of the subject can be obtained easily and with high reproducibility. [0003] The device measures bioimpedance through the following process: attach electrodes to body parts, such as two hands and two feet, select a pair of electrodes among the electrodes according to the measurement site, apply a current signal for measurement, and select the corresponding electrode according to the measurement site. A pair of electrodes, the voltage across which is measured. For example, by measuring the voltage drop from the left wrist ...

Claims

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Application Information

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IPC IPC(8): A61B5/053
CPCA61B5/0537A61B5/4869A61B5/7257
Inventor 车基哲
Owner BIOSPACE
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