Magneto-Optical Biofluid Crystal Detection System

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Solution Overview

Problem

Current methods for detecting and discerning biofluid crystals, such as those causing gout and pseudogout, require trained personnel and specialized facilities, leading to inaccurate diagnoses in primary-care settings due to their complexity and cost.

Innovation Solution

A magneto-optical detection system using a light source and magnets to differentiate between crystal types in biofluid samples by applying magnetic fields in various directions, allowing for accurate identification of crystals like monosodium urate and calcium pyrophosphate dihydrate crystals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If polarized light microscopy is used to detect and classify crystals, then measurement precision is improved, but device complexity and ease of operation worsen due to requiring trained personnel and specialized facilities

Engineering Contradiction:
Improvecrystal detection and classification accuracyVSAvoidspecialized facilities and trained personnel requirements
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical/optical microscopy system with a magneto-optical detection system that uses magnetic fields and light interaction to detect and classify crystals. This substitution eliminates the need for complex microscopy equipment and trained operators while maintaining diagnostic accuracy through automated detection of crystal-specific magneto-optical properties

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the detection parameter from optical properties (birefringence patterns) to magneto-optical properties (interaction with magnetic fields). By applying magnetic fields and measuring the resulting optical changes, the system can distinguish crystal types based on their unique magneto-optical responses, simplifying both the device and operation while improving measurement precision

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If electron microscopy, atomic force microscopy or X-ray diffraction is used to provide accurate crystal information, then measurement precision is improved, but device complexity and cost worsen significantly

Engineering Contradiction:
Improvecrystal information accuracyVSAvoidtechnically demanding and expensive equipment
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent substitutes complex techniques like electron microscopy, atomic force microscopy, and X-ray diffraction with a simpler magneto-optical detection method. The system uses magnetic fields interacting with crystal structures to produce detectable optical signals, achieving accurate crystal identification without requiring technically demanding equipment or specialized facilities

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes from using complex physical interaction methods (electron beams, atomic force, X-rays) to using magnetic field interactions with optical detection. This parameter change enables accurate crystal information acquisition through a less complex, more cost-effective system that can be deployed in routine clinical settings

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If clinical symptoms alone are used for diagnosis, then ease of operation is improved, but measurement precision worsens with 30% diagnostic error rate

Engineering Contradiction:
Improvediagnosis accessibility in primary-care settingsVSAvoiddiagnosis accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent creates a self-service diagnostic system where the magneto-optical detection device automatically performs crystal detection and classification without requiring trained personnel. The system handles sample processing, data acquisition, and crystal identification autonomously, making accurate diagnosis accessible in primary-care settings while eliminating the 30% error rate associated with symptom-based diagnosis

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces subjective clinical symptom assessment with objective magneto-optical detection. By measuring the physical interaction between magnetic fields and crystal structures, the system provides accurate, automated diagnosis that is both easy to operate and highly precise, resolving the contradiction between accessibility and accuracy

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 and cost-effective detection and discernment of biofluid crystals at the point of care, improving diagnosis and treatment by automating the process and reducing reliance on specialized facilities.

Implementation Method 1

The presence of crystals can be first detected in the biofluid sample by applying a magnetic field in a direction as light travels through the sample

Methodology Applied
Scientific EffectMagneto-optical effect: Magneto-Optic Effects

Implementation Method 2

The two similar crystal types can exhibit different magneto-optical properties under a magnetic field in a different direction

Methodology Applied
Scientific EffectMagneto-optical effect: Magneto-Optic Effects

Data Source

PatentUS11982638B2Magneto-optical detection and discernment of biofluid crystals
Publication Date: 2024.05.14 CASE WESTERN RESERVE UNIV
  • US11982638B2 patent drawing
  • US11982638B2 patent drawing
  • US11982638B2 patent drawing

AI summary

A diagnostic device is described herein that can be used to perform magneto-optical detection and discernment of crystals within a biofluid sample. A magnetic field can be applied by the diagnostic device in a direction relative to light traveling through the sample. The presence of a crystal can be determined based on the magneto-optical properties of the sample. The detected crystal can be one of two similar crystal types that may be in the biofluid sample. The two similar crystal types can exhibit different magneto-optical properties under a magnetic field in a different direction. Accordingly, the type of crystal can be discerned by applying the magnetic field in the different direction as light travels through the sample. Discernment of the type of crystal can lead to diagnosis of the particular disease condition and subsequent proper treatment of the disease condition.