Opposable Reagent Chambers for Controlled Specimen Processing

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Solution Overview

Problem

Existing specimen processing systems face inefficiencies in reagent application and are prone to cross-contamination, often requiring multiple mechanical components for reagent delivery.

Innovation Solution

Incorporation of onboard reagents and fluids within an opposable structure, which includes reagent chambers and a mechanism for controlled dispensing, allowing for efficient reagent application and reduced mechanical complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If multiple mechanical components are used for reagent delivery, then reagent application can be achieved, but device complexity increases and cross-contamination risk increases

Engineering Contradiction:

Improvereagent applicationVSAvoidmechanical components

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent integrates reagent storage chambers and dispensing mechanisms directly into the opposable structure itself, merging what were previously separate components (reagent delivery system and specimen processing surface) into a single integrated unit. This eliminates the need for external reagent delivery mechanisms and reduces overall device complexity while maintaining reagent application functionality.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The opposable structure serves multiple functions: it acts as both the specimen processing surface and the reagent storage and delivery system. The cavities within the opposable structure store reagents, while the same structure contacts the specimen slide, eliminating the need for dedicated reagent delivery components and reducing device complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If multiple mechanical components are used for reagent delivery, then reagent application can be achieved, but risk of cross-contamination increases

Engineering Contradiction:

Improvereagent applicationVSAvoidcross-contamination

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The opposable structure contains multiple separate cavities, each dedicated to storing specific reagents. This segmentation isolates different reagents in separate compartments, preventing cross-contamination between reagents. The sealed cavity design ensures that reagents remain contained until dispensing, further reducing contamination risk.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

By integrating reagent storage and dispensing directly into the specimen-contacting opposable structure, the patent eliminates external reagent delivery components that would be prone to cross-contamination. The direct integration reduces the number of surfaces and interfaces where contamination could occur.

Inventive Principle:

Principle #5Merging (Combining)

3Device complexity

If onboard reagents are incorporated within opposable structure, then mechanical complexity is reduced, but volume of opposable structure increases

Engineering Contradiction:

Improvemechanical componentsVSAvoidopposable structure

Core Design Contradiction:

Device complexityVSVolume of moving object

Solution Approach 1:

The reagent storage cavities are nested within the internal structure of the opposable body, similar to nested dolls. The cavities are positioned inside the opposable structure rather than adding external volume, efficiently utilizing the internal space of the opposable body to house reagent chambers without significantly increasing the overall external dimensions.

Inventive Principle:

Principle #7Nested doll (Nesting)

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

Enhances specimen processing efficiency and minimizes cross-contamination while potentially eliminating the need for additional reagent delivery mechanisms.

Implementation Method 1

the reagent chambers having one or more sealing means such that the reagents provided therein may be stored and released on-demand

Methodology Applied

Scientific EffectSealing:

Implementation Method 2

the body being configured to form a fluid-carrying gap between a portion of a central region of the fluid-manipulating surface and a corresponding portion of a central region of a specimen-bearing surface of a slide

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS12429493B2Opposables incorporating onboard reagents and automated specimen processing systems

Publication Date: 2025.09.30 VENTANA MEDICAL SYSTEMS INC

AI summary

The present disclosure is directed to opposables including a body having a plurality of cavities disposed therein. Each cavity can be designed to contain one or more reagents, liquids, or fluids which may be applied to a specimen-bearing surface. In some embodiments, the cavities include one or more reagent chambers, the reagent chambers can have one or more seals such that the reagents, liquids, or fluids contained therein may be stored and released to the specimen-bearing surface.