OLED Leak Detection in Hermetic Enclosures
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Solution Overview
Problem
Current methods for detecting leaks in hermetic enclosures implanted in the human or animal body are complex, often require removal from the body, and are unsuitable for small-volume enclosures, posing challenges for ensuring patient safety and effective detection.
Innovation Solution
A device utilizing an organic light-emitting diode (OLED) inside the enclosure to measure luminous efficiency and impedance, with a processing circuit comparing these parameters to reference values to detect abnormal oxygen or humidity levels, potentially indicating a leak, and triggering an alarm if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional leak detection methods are used, then leak detection capability is provided, but device complexity increases and removal from body is required
Solution Approach 1:
The organic light-emitting diode serves dual functions: it acts as both the light source for optical stimulation and as the sensor for leak detection. The diode's own optical and electrical properties are monitored to detect leaks, eliminating the need for separate detection devices and simplifying the overall system architecture.
Solution Approach 2:
The organic light-emitting diode is integrated to perform multiple functions within the implantable device: providing optical stimulation therapy and simultaneously serving as a leak detection sensor. This multi-functionality reduces device complexity by combining what would traditionally be separate components.
2Reliability
If conventional leak detection methods are used, then leak detection is possible, but device removal from body is required
Solution Approach 1:
The organic light-emitting diode monitors its own performance characteristics (optical output and electrical properties) to detect leaks. This self-monitoring capability enables in-situ leak detection without requiring device removal or external testing equipment.
Solution Approach 2:
The system continuously monitors the diode's optical and electrical properties and compares them against reference values to detect leaks in real-time. This feedback mechanism enables ongoing leak detection while the device remains implanted, providing continuous safety monitoring.
3Reliability
If conventional leak detection methods are used, then leak detection is provided, but detection in small-volume enclosures is unsuitable
Solution Approach 1:
The organic light-emitting diode serves as both the therapeutic component and the leak sensor, utilizing its intrinsic properties without requiring additional sensor space. This approach is particularly advantageous for small-volume enclosures where adding separate detection components would be impractical.
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
Enables simple, in-situ leak detection in small-volume enclosures, ensuring patient safety by effectively identifying leaks without removing the device and suitable for various biocompatible hermetic enclosures, including those used for medical implants.
Implementation Method 1
an organic light-emitting diode intended to be placed inside the enclosure
Implementation Method 2
a magnitude representative of at least one of the following parameters: a) the luminous efficiency of the diode
Implementation Method 3
the measuring device comprises a photodetector placed opposite the organic light-emitting diode
Implementation Method 4
b) the impedance of the diode
Data Source
Figure 1~3
AI summary
The invention relates to a device for detecting a leak in a sealed enclosure, comprising an organic light-emitting diode (101) intended to be placed inside the enclosure; and a device (103, 105, 107) for measuring a value representative of at least one of the following parameters: a) the luminous efficacy of the diode; and b) the impedance of the diode.