Automated Melanin Bleaching in Slide Staining
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Solution Overview
Problem
Existing bleaching protocols for biopsy samples are time-consuming, prone to sample damage, and lack consistency due to separate processing from staining procedures, especially when dealing with high melanin concentrations in skin cells, which can mask antibody interactions and complicate melanoma analysis.
Innovation Solution
An automated slide-staining instrument integrates bleaching into the staining protocol, using a robotic arm and slide staining assemblies to dispense reagents and bleaching agents in a controlled sequence, including epitope retrieval, hydrogen peroxide, and bleaching steps, to reduce melanin interference and enhance antibody interaction consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If separate bleaching protocols are used to eliminate melanin, then melanin interference is reduced, but processing time increases and sample damage risk increases
Solution Approach 1:
The patent combines the bleaching protocol with the staining protocol into a single integrated automated process. The fluid dispensing robot performs both bleaching agent dispensing and staining reagent dispensing within the same instrument and time frame, eliminating the need for separate processing steps and reducing overall processing time while maintaining effective melanin removal.
Solution Approach 2:
The bleaching steps are performed as preliminary actions within the integrated protocol, where melanin is removed before staining occurs. This preliminary bleaching action prevents melanin interference with subsequent antibody interactions and staining processes, ensuring cleaner results without requiring separate later processing.
2Object-affected harmful factors
If separate bleaching protocols are used to eliminate melanin, then melanin interference is reduced, but sample damage risk increases
Solution Approach 1:
By integrating bleaching and staining into one automated protocol executed by a single instrument, the patent minimizes sample handling and transport between separate laboratories. This reduces mechanical stress and contamination risks on biopsy samples while achieving effective melanin removal through controlled automated fluid dispensing.
Solution Approach 2:
The automated instrument performs all bleaching and staining operations without manual intervention, eliminating human handling steps that could damage delicate biopsy samples. The system self-manages fluid dispensing, timing, and protocol execution, ensuring consistent gentle treatment of samples throughout the process.
3Adaptability or versatility
If manual bleaching protocols are used, then flexibility is maintained, but consistency between laboratories decreases
Solution Approach 1:
The automated instrument incorporates programmed protocols with precise timing, temperature control, and fluid dispensing parameters that ensure consistent execution across different laboratories. The system monitors and maintains protocol parameters, providing reproducibility and standardization while still allowing protocol customization for different sample types and staining requirements.
Solution Approach 2:
The integrated instrument performs multiple functions including bleaching, staining, and protocol management within a single system. This universal platform can execute standardized protocols across different laboratories while maintaining flexibility to adapt to various sample types and staining methods, achieving both consistency and adaptability.
4Productivity
If integrated automated staining protocol is used, then processing efficiency improves, but system complexity increases
Solution Approach 1:
The instrument integrates multiple functions (fluid dispensing, heating, protocol control, and automated operation) into a single multi-functional system. This consolidation improves processing efficiency by eliminating the need for multiple separate instruments and manual operations, while the automated control system manages the complexity internally, presenting a user-friendly interface to operators.
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 integrated bleaching process within the automated staining protocol improves processing efficiency, reduces tissue damage, and achieves consistent results by effectively reducing melanin levels, thereby enhancing the visibility and analysis of biopsy samples.
Implementation Method 1
Existing protocols may also introduce challenges. For instance, bleaching is performed separately from other staining processes
Data Source
AI summary
An automated slide staining apparatus includes a controller, a slide staining assembly, and at least one fluid dispensing robot. The slide staining assembly is configured to receive one or more of slides. The at least fluid dispensing robot is configured by the controller to dispense a plurality of reagents to the slides. The at least one fluid dispensing robot is configured by the controller to dispense the one or more reagents in a predetermined sequence corresponding to a slide staining protocol for the slides independently. The at least one fluid dispensing robot being further configured by the controller to dispense one or more bleaching agents in a predetermined sequence corresponding to a bleaching protocol for the slides independently. The at least one fluid dispensing robot being further configured by the controller to perform the bleaching protocol between one or more steps of the staining protocol.