Automated Staining System with Reagent Cartridge and Bulk Dispensing

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Solution Overview

Problem

Existing automated staining systems for biological specimens are inefficient due to manual pouring and draining of reagents, which leads to accuracy issues, increased operational time, and instrument downtime.

Innovation Solution

An automated sample processing system with reaction stations and reaction chambers that utilize reagent cartridges and bulk reagent dispensing, along with a capsule pressing mechanism for precise reagent application and waste management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual pouring and draining of reagents is used, then operator flexibility is maintained, but time consumption increases and accuracy decreases

Engineering Contradiction:

Improveprocessing speedVSAvoidoperational time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The system divides reagent management into separate functional modules: reagent cartridges for storage, automated dispensing mechanisms for precise delivery, and separate waste collection containers. This segmentation eliminates manual intervention at each step while maintaining system flexibility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The automated staining system performs reagent dispensing, staining processing, and waste removal without operator intervention. The system autonomously manages the entire reagent lifecycle from cartridge to application to waste collection, eliminating time-consuming manual operations.

Inventive Principle:

Principle #25Self-service

2Manufacturing precision

If manual reagent selection and pouring is performed, then system simplicity is maintained, but error rate increases and precision decreases

Engineering Contradiction:

Improvereagent application accuracyVSAvoidsystem complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system introduces an automated dispensing mechanism as an intermediary between reagent storage and the staining process. This intermediary component precisely controls reagent delivery, eliminating manual pouring errors while the modular cartridge system keeps overall complexity manageable.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

Manual mechanical pouring operations are replaced with an automated dispensing system that uses controlled fluid delivery mechanisms. This substitution eliminates human error in reagent application while maintaining system controllability through automated control.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If manual pouring and draining operations are used, then equipment simplicity is maintained, but operational efficiency decreases and spill risk increases

Engineering Contradiction:

Improveoperational efficiencyVSAvoidspill and contamination risk

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The system extracts the harmful manual pouring and draining operations from the staining process. By removing these manual intervention points and replacing them with automated, contained fluid delivery and waste collection, the system eliminates spill risks while improving operational efficiency.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system converts the potential harm of manual reagent handling into benefit by implementing automated containment and controlled delivery. The automated system transforms the risk of spills and contamination into a controlled, clean process while maintaining high operational efficiency.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 enhances efficiency by automating reagent application, reducing human error, and minimizing operational time, while maintaining precise control over processing protocols and waste management.

Implementation Method 1

The reaction chamber (300) may be made of a hydrophilic material to facilitate capillary action as will be discussed below

Methodology Applied

Scientific EffectCapillary action: Capillary Action

Data Source

PatentUS12281970B2Automated staining system and reaction chamber

Publication Date: 2025.04.22 SAKURA FINETEK USA INC

AI summary

An apparatus including a reagent cartridge and a reaction chamber, the reagent cartridge having a reagent capsule removably positioned therein for dispensing of a reagent onto the reaction chamber. A system including a linearly translatable mounting assembly having a plurality of mounting stations dimensioned to receive at least one fluid dispensing cartridge, a linearly translatable bulk reagent dispensing assembly having a plurality of bulk reagent dispensing nozzles coupled thereto and a receiving assembly positioned beneath the mounting assembly and the bulk reagent dispensing assembly, the receiving assembly including a plurality of reaction stations. A method including determining an inventory of an automated sample processing system, downloading a processing protocol from a central controller to the automated sample processing system, operating the automated sample processing system based on the processing protocol and independently of the central controller and dispensing a reagent from the automated sample processing system.