Spectral Tissue Imaging for Early Pressure Ulcer Detection
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Solution Overview
Problem
Current methods for detecting pressure ulcers are subjective, unreliable, and untimely, failing to provide targeted, localized treatment before visible skin damage, and existing equipment lacks objective measures for assessing blood flow in healing tissue.
Innovation Solution
Implementing non-invasive spectral imaging (SI) to assess tissue below the skin's surface, using multispectral or hyperspectral imaging to evaluate SI signal intensity, and administering anatomy-specific interventions based on SI image analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visual inspection is used to detect pressure ulcers, then the detection method is simple and non-invasive, but the detection is subjective, unreliable, and untimely
Solution Approach 1:
The patent replaces manual visual inspection with automated spectral imaging technology. The system uses spectral cameras to capture images at multiple wavelengths, objectively measuring tissue characteristics without human subjectivity. This substitution of mechanical/optical measurement systems for human sensory systems resolves the contradiction between simplicity and accuracy.
Solution Approach 2:
The system changes the detection parameter from visible light reflection (human vision) to spectral reflectance across multiple wavelengths. By analyzing tissue reflectance at specific wavelengths (e.g., 680nm, 780nm, 850nm), the system detects physiological changes before they become visually apparent, significantly improving detection accuracy and timeliness.
2Adaptability or versatility
If universal prevention is applied to all patients, then the prevention approach is simple to implement, but it lacks targeted, localized treatment for specific anatomical sites
Solution Approach 1:
The system applies local quality by providing site-specific assessments and interventions. Different anatomical locations (sacrum, heels, hips) are evaluated independently with location-specific risk algorithms. The system generates targeted recommendations for each high-risk area rather than applying uniform prevention measures, enabling precise localization of care.
Solution Approach 2:
The patient's body is segmented into multiple anatomical regions of interest, each assessed independently. The system divides the assessment into specific pressure-prone areas, allowing tailored prevention strategies for each segment. This segmentation enables the system to identify and treat specific high-risk locations without requiring complex manual evaluation of the entire body.
3Loss of time
If early detection is implemented before visible skin damage, then treatment cost is reduced from $129,000 to $2,000, but the detection method requires advanced spectral imaging technology
Solution Approach 1:
The system performs preliminary detection of tissue stress and physiological changes before actual skin damage occurs. By monitoring spectral reflectance changes that precede visible ulceration, the system enables early intervention at the pre-ulcer stage, dramatically reducing treatment costs and improving patient outcomes.
Solution Approach 2:
The system uses spectral reflectance measurements as an intermediary indicator of tissue health. Rather than directly observing skin breakdown, the system measures intermediate physiological parameters (blood flow, oxygenation, tissue integrity) through spectral analysis, enabling indirect but early detection of developing pressure injuries.
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 early detection of pressure ulcer risk and targeted treatment, reducing ulcer incidence and severity by providing objective, systematic monitoring and personalized care interventions.
Implementation Method 1
spectral imaging (SI) to assess tissue below the skin's surface, using multispectral or hyperspectral imaging
Data Source
AI summary
The present disclosure provides methods and apparatus for evaluating tissue structure in damaged or healing tissue. The present disclosure also provides methods of identifying a patient at the onset of risk of pressure ulcer or at risk of the onset of pressure ulcer, and treating the patient with anatomy-specific clinical interventions selected, based on spectral imaging (SI). The present disclosure also provides methods of stratifying groups of patients based on risk of wound development and methods of reducing incidence of tissue damage in a care facility. The present disclosure also provides methods to analyze trends of SI intensities to detect tissue damage before it is visible, and methods to compare bisymmetric SI intensities to identify damaged tissue.