Automated Specimen Deposition via Spray Atomization
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Solution Overview
Problem
Conventional systems for preparing biological samples on slides are highly variable, leading to challenges in screening and diagnosis, and often require additional samples from patients.
Innovation Solution
The development of automated specimen deposition systems that use spray deposition technology to achieve high-quality, low-variability specimen-bearing substrates, preserving natural cell molecular and structural characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional manual or automated liquid-based systems are used for specimen deposition, then the process can be completed with existing equipment, but the deposition quality is highly variable and requires additional samples
Solution Approach 1:
The patent replaces conventional liquid-based mechanical transfer methods with spray deposition technology. The spray system uses a nozzle to atomize and deposit specimens in a controlled aerosol pattern, eliminating the variability inherent in manual liquid transfer and filtration methods. This mechanical substitution achieves consistent monolayer deposition with high precision and reliability.
Solution Approach 2:
The invention controls deposition parameters including spray pressure, nozzle-to-slide distance, specimen flow rate, and aerosolization conditions to optimize deposition quality. By precisely adjusting these parameters, the system achieves consistent monolayer formation and eliminates the quality variability observed in conventional methods.
2Ease of operation
If manual smearing or liquid transfer methods are used, then the equipment complexity is low, but the technician assistance required increases and quality variability persists
Solution Approach 1:
The automated spray deposition system performs specimen deposition without requiring skilled technician intervention. The system automatically controls spray parameters, nozzle positioning, and deposition timing, making the process self-regulating and eliminating the need for manual smearing or liquid transfer operations that require technical expertise.
Solution Approach 2:
The invention extracts the critical deposition control functions from manual technician operations and transfers them to automated electronic control systems. This separation allows the system to maintain high precision while reducing the skill level and assistance required from operators.
3Device complexity
If conventional deposition methods are used, then the process is simple to implement, but the cell structural characteristics may be distorted or deteriorated
Solution Approach 1:
The spray deposition system uses periodic aerosol pulses to deposit specimens, allowing controlled interaction time between the specimen aerosol and the slide surface. This periodic action prevents excessive mechanical stress on cells while ensuring complete deposition, preserving cell structural integrity better than continuous liquid contact methods.
Solution Approach 2:
The system utilizes phase transition from liquid specimen to aerosol particles during spray deposition. This phase change allows gentle handling of specimens in suspended droplets that minimize mechanical distortion, followed by controlled deposition as the aerosol contacts the slide surface.
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
These systems produce consistent and accurate measurements and diagnostic outcomes with minimal technician assistance, reducing quality variability and increasing diagnostic reliability.
Implementation Method 1
achieve spray deposition of biological samples
Implementation Method 2
spray deposition technology to achieve high-quality, low-variability specimen-bearing substrates
Data Source
AI summary
Systems and methods that enable automated spray deposition of biological specimens carried on microscope slides are described herein. Aspects of the technology are directed, for example, to automated specimen deposition systems and methods of generating high-quality, reproducible specimen-bearing microscope slides in automated processing systems.