Automated Microscope Slide Processing With Jet-Based Staining
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Solution Overview
Problem
Microscope slide preparation is labor-intensive and inefficient, particularly in the processes of sample staining and imaging, which can be further complicated by the need for physical transportation and examination at different facilities.
Innovation Solution
An automated slide processing unit that integrates sample smearing, staining, and imaging, utilizing a slide positioner with stepper motors, servo motors, and sensors for precise slide handling, along with a slide treatment system for chemical application and a digital microscope for imaging, enabling automated and efficient slide processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual slide processing is used, then flexibility and adaptability are maintained, but labor intensity increases and processing efficiency decreases
Solution Approach 1:
The slide processing system is divided into distinct functional modules: a slide positioner with stepper motors for precise positioning, a slide treatment system with spray nozzles for staining, and a digital microscope for imaging. Each module operates independently but coordinates through a control system, allowing the complex processing task to be broken down into manageable automated steps.
Solution Approach 2:
Manual mechanical operations are replaced with automated systems: hand positioning is replaced by stepper motors with encoders for precise slide positioning, manual staining with automated spray nozzles controlled by sensors, and manual imaging with an automated digital microscope system. This substitution eliminates labor-intensive tasks while maintaining processing precision.
2Loss of time
If manual staining and imaging are performed, then operational flexibility is preserved, but time consumption and labor requirements increase
Solution Approach 1:
The automated system enables continuous slide processing without interruption. The slide positioner continuously positions slides through the treatment system, which continuously applies stains via spray nozzles, followed by continuous imaging capture. This continuous automated operation eliminates the start-stop nature of manual processing and reduces overall processing time.
Solution Approach 2:
Sensors are integrated throughout the system to provide feedback to the control mechanism. Position sensors monitor slide location, spray sensors detect stain application status, and image sensors capture slide conditions. This feedback loop allows the automated system to adjust operations in real-time, ensuring consistent processing while reducing the need for manual intervention and monitoring.
3Adaptability or versatility
If physical shipping of processed slides is required, then facility specialization is enabled, but transportation time and complexity increase
Solution Approach 1:
The system merges multiple previously separate functions into a single integrated platform: slide positioning, chemical staining treatment, and digital imaging are combined in one automated unit. This integration eliminates the need to ship physical slides between specialized facilities, as all processing and imaging occur locally in sequence.
Solution Approach 2:
Instead of shipping physical slides for examination, the system creates digital copies (images) of the slides through the integrated digital microscope. These digital images can be transmitted and reviewed remotely, eliminating the need for physical transportation of the actual slides while preserving all examination capabilities.
Data Source
AI summary
Various examples of systems and methods are provided for slide processing. In one example, among others, a system for processing microscope slides includes a slide positioner that can adjust a position of a slide and a slide treatment system that can dispense a micro stream of a fluid at a location on the slide when the slide is positioned beneath a jet nozzle of the slide treatment system. The system can include a slide sled that can align a smearing slide with a surface of the slide including a fluid sample is disposed, and support the smearing slide at a predefined angle with respect to the surface of the slide. In another example, a method includes obtaining a slide including a sample disposed on a surface, positioning the slide below to a jet nozzle, and dispensing a micro stream of a fluid onto the sample using the jet nozzle.