Variable Frequency Bioimpedance Body Fat Measurement
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Solution Overview
Problem
Conventional bioelectrical impedance analysis methods for measuring body fat are limited to general body areas and cannot accurately measure fat thickness in specific regions such as the abdominal region, chest, or forearm, which are increasingly necessary for health management.
Innovation Solution
An apparatus and method that apply a variable frequency current to a desired body area, using a current generating unit, detector unit, and body fat calculating unit to measure impedance changes and calculate body fat thickness based on detected frequency values, allowing for precise measurement of fat thickness in any body part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional bioelectrical impedance analysis is used, then body fat measurement is fast and simple, but measurement is limited to general body areas only
Solution Approach 1:
The patent divides the body into multiple measurable segments by using separate electrode pairs for different body parts (arm, leg, trunk). Each electrode pair can independently measure impedance in its specific region, enabling localized fat measurement while maintaining the simplicity of the overall measurement process.
Solution Approach 2:
The measurement apparatus is designed with multiple electrode pairs that can be configured to measure different body regions. The same basic impedance measurement mechanism serves multiple functions by simply repositioning electrodes, making the device versatile for measuring fat in arms, legs, trunk, or combination thereof.
2Device complexity
If conventional bioelectrical impedance analysis is used, then measurement process is simple, but cannot measure fat thickness in specific regions
Solution Approach 1:
The patent employs separate electrode pairs positioned on different body segments (arm, leg, trunk) to independently measure impedance in each region. This segmentation allows precise calculation of fat thickness in specific areas without requiring complex additional equipment, as each electrode pair functions as an independent measurement unit for its designated region.
Solution Approach 2:
The measurement system applies local quality by positioning specific electrode pairs on specific body parts to measure local fat characteristics. Each electrode pair is optimized for measuring the subcutaneous fat layer in its immediate vicinity, providing region-specific precision while maintaining overall system simplicity.
3Measurement precision
If electrodes are positioned on specific body parts, then regional measurement is enabled, but electrode placement becomes more complex
Solution Approach 1:
The patent simplifies electrode placement by dividing the body into distinct measurement zones (arm, leg, trunk), each with its own dedicated electrode pair. Users only need to place electrodes on the specific body part they wish to measure, rather than requiring a complex full-body electrode configuration, making the process intuitive and region-specific.
Solution Approach 2:
The measurement system extracts the essential measurement function to a minimal electrode pair configuration. Instead of requiring multiple electrodes across the entire body, the system uses just two electrodes per measurement region, extracting only the necessary components for local fat measurement and eliminating unnecessary complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate measurement of body fat thickness in any body area, facilitating health and fatness management for specific parts of the body, and allowing for convenient measurement regardless of time or location.
Implementation Method 1
a current generating unit for generating a current having a predetermined range of variable frequency and for applying the current to a desired area on a body
Implementation Method 2
a detector unit for detecting a voltage across the desired area in response to the application of the current and for detecting a frequency value at which an impedance of the desired area changes based on a relationship between the detected voltage and the variable frequency
Data Source
AI summary
An apparatus, medium, and method for measuring body fat. The apparatus may include a current generating unit generating a current having a predetermined range of variable frequency and applying the current to a desired area in a human body to be measured, a detector unit detecting a voltage generated from the desired area in response to the current having a variable frequency and detecting a frequency value at which impedance of the desired area is changed based on relation between the detected voltage and the variable frequency, and a body fat calculating unit calculating body fat thickness based on the detected frequency value. It is possible to measure body fat thickness in any part of a human body by applying a variable frequency current to a desired area. Therefore, health and fatness management can be accomplished for each part of a human body.