Coverslipping Apparatus Drying Unit for Slide Handling
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Solution Overview
Problem
Existing apparatuses for handling specimen slides with coverslipped thin sections face challenges in handling due to the slippage of coverslips, which can damage the sections and pose a risk of infection, especially when the slides are not held horizontally, as the mounting medium has not dried yet.
Innovation Solution
An apparatus with a drying unit that uses an air flow to quickly dry the mounting medium, ensuring the coverslip adheres firmly to the slide, combined with a transport unit for automated and horizontal handling of specimen slides, preventing slippage and damage, and incorporating features like temperature-controlled air and insulation to optimize drying efficiency and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the mounting medium is applied and coverslipping is performed quickly, then productivity is improved, but the coverslip may slip off and damage the thin section
Solution Approach 1:
The patent applies a preliminary drying action by introducing a stream of dry air or gas (such as nitrogen or compressed air) immediately after coverslipping to rapidly evaporate the mounting medium solvent. This preliminary drying step ensures the coverslip adheres firmly before the slide leaves the coverslipping apparatus, resolving the contradiction between fast processing and reliable adhesion.
2Device complexity
If the specimen slides are handled manually, then device complexity is reduced, but the horizontal position cannot be maintained and slippage occurs
Solution Approach 1:
The patent replaces manual mechanical handling with an automated mechanical transport system that includes a slide holder and positioning mechanism. This system automatically maintains the slides in a horizontal position during transfer from the coverslipping module to the drying area, eliminating slippage risks while keeping the overall device complexity manageable through standardized mechanical components.
3Manufacturing precision
If the mounting medium dries slowly, then manufacturing precision is maintained, but the handling time increases and risk of damage increases
Solution Approach 1:
The patent changes the environmental parameters during drying by introducing a stream of dry, warm air or inert gas that increases the evaporation rate of the mounting medium solvent. This controlled parameter change accelerates drying while maintaining thin section integrity through gentle, uniform drying conditions, thus reducing handling time without compromising precision.
Solution Approach 2:
The patent uses pneumatic delivery of a dry gas stream (such as compressed air or nitrogen) to accelerate the drying process. This pneumatic system provides controlled, directional airflow that rapidly evaporates the mounting medium while protecting the thin section, achieving both speed and precision in the drying process.
4Ease of operation
If the coverslip protrudes laterally beyond the specimen slide, then ease of operation is improved for application, but the risk of infection increases when handling contaminated sections
Solution Approach 1:
The patent introduces a receptacle or containment structure that receives the protruding coverslip edges during the coverslipping process. This intermediary structure holds the coverslip in place during application, allowing easy positioning, and then secures it within defined boundaries, preventing lateral protrusion that could cause infection risks during subsequent handling of contaminated specimens.
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 solution allows for safe and efficient handling of coverslipped specimen slides by ensuring the coverslip adheres firmly, reducing the risk of damage and infection, while enabling higher throughput and safer handling of contaminated samples through controlled drying and transport.
Implementation Method 1
Extraction of solvent from the applied mounting medium is achieved by delivering an air flow to the specimen slides through an air delivery unit of the drying unit
Implementation Method 2
The apparatus encompasses in particular a heating element with which an air flow can be heated
Implementation Method 3
The drying unit is provided with insulation with which heat loss can be minimized
Data Source
AI summary
An apparatus (10) for handling specimen slides (32, 78, 80) has at least one coverslipping module (14) for coverslipping thin sections arranged on specimen slides (32, 78, 80). The apparatus (10) further encompasses a drying unit (16, 70, 90) for extracting solvent from the mounting medium applied onto the specimen slides (32, 78, 80). The drying unit (16, 70, 90) has an air delivery unit (40) for delivering an air flow to the specimen slides (32, 78, 80).