Sample Holder with Internal Reflection for Biological Imaging

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Solution Overview

Problem

Current methods for analyzing biological samples are limited in their ability to provide accurate and efficient optical and image analysis, particularly for small samples and in various clinical and laboratory settings, due to limitations in sample holders and illumination techniques.

Innovation Solution

The development of sample holders with optically transmissive portions and internal reflection capabilities, allowing for both epi-illumination and trans-illumination, along with advanced detector systems and methods for precise measurement and analysis of small biological samples.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional sample holders with single-illumination methods are used, then the device complexity is low, but the measurement precision and analysis accuracy are limited

Engineering Contradiction:
Improveoptical analysis accuracyVSAvoidsample holder structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The sample holder integrates multiple illumination methods (epi-illumination and trans-illumination) into a single device structure, allowing both illumination modes to be achieved through the same sample holder without requiring separate devices. The light guide structure combines multiple light paths within one component.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sample holder is designed to perform multiple functions: it can provide both epi-illumination (light from above) and trans-illumination (light from below) capabilities, making it a multi-functional device that adapts to different optical analysis requirements without needing separate specialized holders.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Quantity of substance

If small sample volumes are analyzed, then the loss of substance is reduced, but the illumination uniformity and measurement reliability become problematic

Engineering Contradiction:
Improvesample volumeVSAvoidmeasurement consistency
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The light guide structure is designed with specific local optical properties to ensure uniform light distribution across the small sample volume. The internal reflection surfaces are positioned and shaped to provide consistent illumination throughout the sample chamber, addressing the specific lighting needs of small samples.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The light guide acts as an intermediary component that distributes light uniformly across the small sample volume. It mediates between the light source and the small sample, ensuring that even tiny sample volumes receive consistent and uniform illumination for reliable measurements.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If multiple illumination directions are implemented, then the measurement precision improves, but the use of energy increases

Engineering Contradiction:
Improveoptical measurement accuracyVSAvoidlight source energy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The light guide structure utilizes internal reflection to redirect and distribute light throughout the sample chamber without requiring additional active energy input. The optical design allows the system to self-distribute the illumination energy efficiently through passive optical elements.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The integrated light guide maintains continuous light distribution across the sample volume through internal reflection pathways, ensuring that the illumination action continues uniformly without interruption or energy loss between different illumination zones.

Inventive Principle:
Principle #20Continuity of useful action

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 improved optical examination and measurement of biological samples, providing accurate quantitative and qualitative data, even for small sample volumes, and facilitating precise analysis in various settings.

Implementation Method 1

a sample holder having an optically transmissive portion and a portion configured to provide internal reflection of light within the sample holder

Methodology Applied
Scientific EffectInternal reflection: Reflection

Implementation Method 2

internal reflections may include partial internal reflection and may include total internal reflection of light

Methodology Applied
Scientific EffectTotal internal reflection: Total Internal Reflection

Implementation Method 3

an external light source disposed on one side of the sample holder may provide epi-illumination of a sample within the sample holder

Methodology Applied
Scientific EffectEpi-illumination: Reflection

Implementation Method 4

may provide trans-illumination of a sample within the sample holder

Methodology Applied
Scientific EffectTrans-illumination: Refraction

Data Source

PatentUS12111248B2Image analysis and measurement of biological samples
Publication Date: 2024.10.08 LABRADOR DIAGNOSTICS LLC
  • US12111248B2 patent drawing
  • US12111248B2 patent drawing
  • US12111248B2 patent drawing

AI summary

Methods, devices, apparatus, and systems are provided for image analysis. Methods of image analysis may include observation, measurement, and analysis of images of biological and other samples; devices, apparatus, and systems provided herein are useful for observation, measurement, and analysis of images of such samples. The methods, devices, apparatus, and systems disclosed herein provide advantages over other methods, devices, apparatus, and systems.