Sterilizer Humidity Feedback Control for Reliable Instrument Drying
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Solution Overview
Problem
Current medical instrument sterilization systems lack effective monitoring and management of temperature and humidity conditions during and after the sterilization cycle, making it difficult to ensure that instruments are properly sterilized.
Innovation Solution
A sterilizer device equipped with a temperature sensor, humidity sensor, and a heating element, which monitors and controls temperature and humidity levels during the sterilization cycle and adjusts the heating element's operation based on humidity thresholds, ensuring effective sterilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sterilization cycles are used without monitoring, then the sterilization process is simple and quick, but there is no way to ensure that instruments have reached the required temperature and humidity conditions
Solution Approach 1:
The patent implements feedback control by continuously monitoring temperature and humidity conditions during the sterilization cycle using sensors, comparing actual conditions against target parameters, and automatically adjusting the sterilization process to maintain required conditions. This ensures sterilization effectiveness while managing system complexity through automated closed-loop control.
Solution Approach 2:
The patent replaces manual monitoring and adjustment mechanisms with electronic sensors and automated control systems. Temperature and humidity are monitored electronically rather than through manual measurement, and adjustments are made automatically by the control system rather than requiring manual intervention, thereby ensuring reliability without proportionally increasing operational complexity.
2Reliability
If temperature and humidity monitoring is added to the sterilizer, then sterilization reliability is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into the sterilization system, including temperature monitoring, humidity monitoring, automated control adjustments, and cycle management, all within a single integrated control architecture. This multi-functionality approach improves sterilization process control while managing complexity by consolidating functions rather than adding separate independent systems.
Solution Approach 2:
The sterilization system performs self-monitoring and self-adjustment of temperature and humidity conditions during the sterilization cycle. The automated control system detects deviations from target conditions and automatically makes corrections without requiring external intervention, thereby improving reliability while minimizing the complexity of external monitoring and adjustment mechanisms.
3Reliability
If humidity control is implemented after sterilization cycle, then humidity conditions are maintained, but energy consumption increases due to heating element operation
Solution Approach 1:
The patent implements feedback control for post-sterilization humidity management by continuously monitoring humidity levels and automatically activating the heating element only when humidity falls below the required threshold. This targeted approach maintains necessary humidity conditions while minimizing energy consumption by operating the heating element only when and where needed, rather than continuously.
Solution Approach 2:
The heating element operates in periodic intervals rather than continuously during post-sterilization humidity maintenance. The system monitors humidity conditions and activates heating only when required to maintain threshold levels, then deactivates when conditions are sufficient. This periodic operation maintains humidity reliability while significantly reducing overall energy consumption compared to continuous heating.
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
Ensures that medical instruments are properly sterilized by maintaining controlled temperature and humidity conditions, enhancing the reliability of the sterilization process.
Implementation Method 1
equipping an interior space of the sterilizer device with an auxiliary device having a temperature sensor
Implementation Method 2
equipping an interior space of the sterilizer device with an auxiliary device having a humidity sensor
Implementation Method 3
controlling the heating element to an ON operating state when the current humidity measurement is above the predefined threshold
Data Source
AI summary
A method for controlling an environment within a sterilizer device is disclosed. The method includes equipping an interior space of the sterilizer device with an auxiliary device having a temperature sensor, a humidity sensor, a heating element, monitoring temperature within the sterilizer device, receiving, by the sterilization device, information associated with an initiation of a sterilization cycle of the sterilizer device; monitor duration of the sterilization cycle, receiving, by the sterilization device, information associated with an end of a sterilization cycle of the sterilizer device, determining whether a current humidity measurement is above a predefined threshold, and controlling the heating element to an ON operating state when the current humidity measurement is above the predefined threshold.