Automated Microscope for Mastitis Detection
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Solution Overview
Problem
Current methods for detecting subclinical mastitis in cattle, such as flow-cytometry and manual milk differential smear, are expensive, time-consuming, and impractical for field or barn environments, lacking a suitable system for implementing disease detection procedures effectively in these settings.
Innovation Solution
An automated microscope apparatus with a microprocessor, XYZ stage, and sample cartridge system that enables efficient imaging and counting of leukocytes in milk samples, allowing for accurate detection of mastitis in a portable and user-friendly manner, suitable for field use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If flow-cytometry is used to detect differential milk leukocyte count, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The system divides the complex flow-cytometry function into separate modular components: a microfluidic sample preparation cartridge that performs cell separation and concentration, and a simplified imaging station with automated microscopy. This segmentation maintains diagnostic accuracy while reducing overall system complexity and cost.
Solution Approach 2:
The patent replaces complex mechanical flow-cytometry mechanisms with an automated imaging and image analysis system. The microfluidic cartridge prepares samples optically, and a camera-based system with automated focus and image processing detects leukocyte types, substituting mechanical complexity with optical and computational approaches.
2Ease of manufacture
If manual milk differential smear is used, then ease of manufacture is improved, but productivity and measurement precision deteriorate
Solution Approach 1:
The system incorporates automated sample preparation through microfluidic cartridges that self-regulate cell concentration and separation, and automated image analysis software that autonomously identifies and counts leukocyte types. This self-service automation maintains operational simplicity while dramatically increasing detection speed and consistency compared to manual methods.
Solution Approach 2:
The microfluidic cartridge performs preliminary sample preparation actions automatically: cell lysis for specific targets, concentration of leukocytes, and separation of cell types before imaging. This preliminary automated processing eliminates time-consuming manual steps while preserving the simplicity of the overall system design.
3Device complexity
If manual milk differential smear is used, then device complexity is reduced, but measurement precision and reliability worsen due to variability
Solution Approach 1:
The system incorporates automated feedback loops: the image analysis software continuously adjusts imaging parameters based on detected cell characteristics, validates count accuracy through multiple field inspections, and provides quality control metrics. This automated feedback ensures consistent, reliable results while maintaining system simplicity.
Solution Approach 2:
The patent replaces the variable human judgment in manual smear interpretation with automated image analysis algorithms that objectively identify and classify leukocyte types. This substitution of human variability with computational analysis maintains simple system operation while dramatically improving diagnostic reliability and consistency.
4Productivity
If automated imaging system is implemented, then productivity is improved, but use of energy increases due to microprocessor and cooling requirements
Solution Approach 1:
The system extracts and separates the high-power components (microprocessor, heat sink) into a distinct power module, allowing the main imaging and sample preparation functions to operate with lower power consumption. This extraction enables automated productivity while managing overall energy use through modular power distribution.
Solution Approach 2:
The imaging system uses periodic rather than continuous operation: the microprocessor and intensive cooling are activated only during image acquisition and analysis cycles, while sample preparation and idle periods use minimal power. This periodic activation maintains high productivity during operation while reducing average energy consumption.
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 provides a practical and accurate means to detect mastitis by automating the process of imaging and counting leukocytes, reducing variability and cost, and making it feasible for use in harsh environments like barns, thereby improving diagnostic efficiency and reducing economic losses from subclinical mastitis.
Implementation Method 1
a heat sink mounted on said housing external wall, preferably adjacent said second compartment, with said microprocessor thermally coupled to said heat sink
Implementation Method 2
a microscope assembly in said housing, preferably in said first compartment
Data Source
AI summary
An automated microscope apparatus, comprises an outer housing having an external wall; optionally but preferably an internal wall in said housing, and configured to form a first compartment and a separate second compartment in said outer housing; a microscope assembly in said housing, preferably in said first compartment; and a microprocessor in said housing, preferably in said second compartment; and optionally but preferably a heat sink mounted on said housing external wall, preferably adjacent said second compartment, with said microprocessor thermally coupled to said heat sink and operatively associated with said microscope assembly.