Multispectral Pressure Ulcer Diagnosis With Depth Data
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Solution Overview
Problem
Conventional pressure ulcer diagnosis methods rely on visual inspection and experience, leading to inconsistent and potentially inaccurate diagnoses, with a high risk of misdiagnosis due to the variability in ulcer severity and size across affected areas.
Innovation Solution
A depth data-based pressure ulcer diagnosis system using a multispectral light source that includes a light emission unit, a measurement unit, and a pressure ulcer diagnosis unit to assess pressure ulcers through differences in skin transmittance per wavelength, enabling quantitative assessment and non-invasive depth evaluation via big data learning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If visual inspection and experience-based diagnosis are used, then diagnostic simplicity and ease of operation are improved, but measurement precision and reliability deteriorate due to subjectivity and variability
Solution Approach 1:
The patent replaces the mechanical/subjective visual inspection system with an optical measurement system using multispectral light sources. The system uses light transmission through skin at multiple wavelengths to objectively measure tissue properties, substituting human sensory judgment with physical measurement principles.
Solution Approach 2:
The patent changes the diagnostic parameters from subjective visual assessment to quantitative optical measurement parameters. By measuring light transmission intensity at multiple specific wavelengths, the system transforms the diagnosis from qualitative visual inspection to quantitative spectral analysis, improving precision while maintaining operational feasibility.
2Measurement precision
If quantitative multispectral measurement is implemented, then measurement precision and reliability are improved, but device complexity increases due to multiple light sources and measurement components
Solution Approach 1:
The patent implements a multispectral light source that can emit multiple wavelengths simultaneously or sequentially, serving multiple measurement functions with a single device. This multi-functional approach allows the system to obtain various tissue optical properties without requiring separate devices for each wavelength, thereby managing complexity while maintaining measurement precision.
Solution Approach 2:
The patent combines multiple light sources of different wavelengths into a single integrated measurement system. By merging the emission of multiple wavelengths and their corresponding detection into one coordinated system, the patent reduces the overall complexity that would result from using separate devices for each measurement, while still achieving high diagnostic accuracy through comprehensive spectral analysis.
3Measurement precision
If depth assessment is added to the diagnosis system, then measurement precision is improved by providing three-dimensional information, but device complexity and measurement time increase
Solution Approach 1:
The patent uses continuous multispectral light transmission measurement to simultaneously obtain both surface and depth information. By maintaining continuous light emission across multiple wavelengths and measuring transmission at different depths through the tissue, the system obtains three-dimensional ulcer information in a single continuous measurement process, avoiding sequential measurements that would increase time loss.
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
The system provides accurate, three-dimensional representation of pressure ulcer progression, reducing misdiagnosis by quantitatively assessing ulcer stages and depths, thereby improving diagnostic accuracy and standardizing treatment approaches.
Implementation Method 1
enables to detect skin abnormalities caused by a pressure ulcer by using an optical principle of a difference in skin transmittance per wavelength of multispectral light sources
Data Source
AI summary
The present invention provides a depth data-based pressure ulcer diagnosis system and method using a multispectral light source, the system comprising: a light emission unit for irradiating the skin of a body part with light in order to assess a pressure ulcer; a measurement unit which measures light transmittance using reflected light that is reflected from the skin of the body part when the skin of the body part is irradiated with light in order to assess a pressure ulcer; and a pressure ulcer diagnosis unit which assesses the state of a pressure ulcer on the basis of the light transmittance measured by the measurement unit, wherein the optical principle that the transmittance of light from a multispectral light source through the skin differs according to wavelength can be used to detect skin abnormalities caused by pressure ulcers.