Incubator VOC Sensor for Sterility Monitoring
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Solution Overview
Problem
Existing incubators require frequent high-temperature sterilization, which is labor-intensive and risks contaminating sensitive samples, and fail to detect contamination within the chamber itself, such as on door seals or in water trays, leading to potential biological contamination and sample loss.
Innovation Solution
An incubator equipped with a retrofittable sensor device that detects volatile organic compounds (VOCs) in the chamber atmosphere, allowing for automatic detection of contamination and informing the user to initiate sterilization only when necessary, thereby reducing effort and sample loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-temperature sterilization is performed periodically, then sterility of the incubator chamber is maintained, but labor effort and risk of sample loss increase
Solution Approach 1:
The patent implements a feedback mechanism through VOC sensors that continuously monitor the incubator chamber atmosphere. When contamination is detected, the system automatically triggers high-temperature sterilization, eliminating the need for periodic blind sterilization and reducing labor effort while maintaining sterility reliability.
Solution Approach 2:
The incubator system performs self-monitoring and self-initiation of sterilization procedures through integrated sensors and control systems. The chamber automatically detects its own contamination state and initiates appropriate responses, freeing users from manual monitoring and periodic sterilization operations.
2Reliability
If high-temperature sterilization is performed, then contamination is eliminated, but sensitive samples may be damaged
Solution Approach 1:
The VOC sensor system performs preliminary detection of contamination before high-temperature sterilization is initiated. This allows the system to confirm the presence and extent of contamination, ensuring sterilization is only performed when necessary and providing advance warning to users to protect sensitive samples from thermal exposure.
Solution Approach 2:
The continuous monitoring feedback system provides real-time information about contamination levels, enabling users to make informed decisions about whether to proceed with sterilization and under what conditions, thereby protecting samples from unnecessary thermal exposure while maintaining chamber sterility.
3Reliability
If the incubator chamber is cleared for sterilization, then sterility is maintained, but sample loss risk increases
Solution Approach 1:
The VOC sensor system continuously monitors the chamber atmosphere and provides feedback about contamination status. This eliminates the need to clear the chamber for sterilization, as the system can detect and respond to contamination without requiring sample removal, thereby preventing sample loss while maintaining sterility.
Solution Approach 2:
The incubator performs self-monitoring and self-cleaning through integrated sensors and automated sterilization initiation. The system detects contamination and initiates appropriate responses without requiring manual intervention or chamber clearing, thereby eliminating sample loss risks associated with sample rearrangement during sterilization.
4Difficulty of detecting and measuring
If VOC sensors are installed in the incubator chamber, then contamination detection is enabled, but device complexity increases
Solution Approach 1:
The patent employs VOC sensors that can detect multiple types of contamination sources (biological contaminants, chemical vapors from materials) through a single sensing mechanism. This multi-functional capability provides comprehensive contamination detection without requiring multiple specialized sensors, thereby limiting the increase in device complexity.
Solution Approach 2:
The VOC sensors act as intermediaries that translate complex contamination situations into measurable gas concentration signals. By detecting volatile organic compounds as proxy indicators for contamination, the system simplifies the measurement process and avoids the need for complex direct detection methods, thereby limiting the increase in device complexity.
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 VOC sensor system enables reliable detection of contamination, reducing the need for frequent high-temperature sterilization and minimizing the risk of sample loss by alerting users to initiate sterilization only when contamination is present, thus maintaining a sterile environment with reduced operational effort.
Implementation Method 1
The sensor device (30) comprises at least one VOC sensor (211) for detecting the VOCs
Data Source
AI summary
The invention relates to an incubator comprising sensor means for detecting VOC contamination of the gas atmosphere of the interior of the incubator chamber.