Capillary Slide Processing System for Reagent Control
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Solution Overview
Problem
Current specimen processing systems face challenges such as contamination, excessive reagent usage, and inconsistent processing due to manual techniques and open bath systems, which lead to inefficient use of reagents and increased waste, particularly in histology and immunohistochemical staining processes.
Innovation Solution
A system that uses opposable elements to manipulate and deliver small volumes of liquids across microscope slides via capillary action, controlling temperature and evaporation to maintain consistent processing conditions, while minimizing waste and reagent usage through automated slide handling and processing stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If open bath systems are used to immerse specimens in liquids, then processing can be performed, but contamination and degradation of processing liquids occur leading to inconsistent processing
Solution Approach 1:
The patent divides the continuous liquid bath into discrete, individually processable liquid volumes. Each specimen receives a separate controlled liquid application, preventing cross-contamination between specimens while maintaining automated batch processing capability. This segmentation resolves the contradiction by enabling consistent processing (reliability) through isolated liquid applications while preserving productivity through automation.
Solution Approach 2:
The invention applies different liquid treatments to different local regions of specimens in a controlled manner. Each specimen receives precisely measured liquid volumes at specific locations, ensuring consistent local processing conditions. This local quality control prevents the degradation and contamination issues that arise from shared open baths while maintaining high throughput through automated application.
2Manufacturing precision
If manual techniques are used to apply dyes or reagents, then processing can be performed, but labor-intensive work results in inconsistent processing due to individual techniques
Solution Approach 1:
The system employs automated liquid application mechanisms that self-regulate the dispensing process. The apparatus automatically controls liquid volume, application speed, and positioning without requiring manual intervention, thereby eliminating variability introduced by different technicians' techniques while maintaining operational simplicity through a self-contained automated system.
Solution Approach 2:
The patent replaces manual mechanical application techniques with an automated mechanical system. The liquid application apparatus uses controlled mechanical mechanisms (pumps, dispensers, positioning systems) to apply reagents with precise consistency, eliminating the human element that causes variability while keeping the system easy to operate through automated control.
3Productivity
If dip and dunk automated machines are used to immerse specimens, then batch processing is achieved, but excessive volumes of liquids are used resulting in high processing costs
Solution Approach 1:
Instead of completely immersing specimens in large volumes of liquid, the system applies partial liquid coverage precisely where needed. The automated apparatus dispenses controlled volumes of reagent that are sufficient for effective processing without the excess liquid required by immersion methods, thereby reducing reagent consumption while maintaining batch processing productivity.
Solution Approach 2:
The invention changes the fundamental parameter of liquid volume from large immersion volumes to small controlled application volumes. By transforming the liquid application method from bulk immersion to precise dispensing, the system achieves the same processing effect with dramatically reduced reagent consumption while preserving automated batch processing capability.
4Ease of operation
If open containers are used for liquid baths, then processing can be performed, but evaporative losses and reagent oxidative degradation occur altering concentration and effectiveness
Solution Approach 1:
The system extracts the liquid from open container environments and delivers it directly to specimens in a controlled, closed manner. By taking out the liquid from the open bath configuration and applying it through a controlled dispensing system, the invention eliminates evaporative losses and oxidative degradation that occur in open containers, maintaining reagent concentration stability while keeping operation simple through automated delivery.
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 achieves consistent and efficient specimen processing with reduced reagent consumption and waste, maintaining optimal reagent concentration and temperature profiles, thereby improving the quality and efficiency of histology and immunohistochemical staining.
Implementation Method 1
A system that uses opposable elements to manipulate and deliver small volumes of liquids across microscope slides via capillary action
Data Source
AI summary
A specimen processing system is capable of processing specimens carried on slides. The specimen processing system can sequentially deliver slides and opposables to specimen processing stations. The specimen processing stations can use the opposables to apply a series of liquids to the specimens. The applied liquid can be moved along the slide using capillary action while the specimen processing stations control the processing temperatures.