Integrated Multi-Modal Sensor Module for Compact Physiological Monitoring
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Solution Overview
Problem
Existing physiological signal monitoring systems require multiple sensors, making it challenging to achieve daily real-time monitoring of biological tissues due to their complexity and bulkiness.
Innovation Solution
A multi-modal sensor module integrating an electrode base, insulating film sheet, and protective film with multiple sensor components in a single functional layer, allowing simultaneous acquisition of various physiological signals and arterial blood pressure estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sensors are used to collect physiological signals, then the comprehensiveness of physiological monitoring is improved, but the device complexity and bulkiness increase
Solution Approach 1:
The patent combines multiple sensor types (ECG electrodes, PPG sensors, accelerometers, gyroscopes, barometers, temperature sensors, and bioimpedance sensors) into a single integrated sensor module with a unified structure. This merging approach allows comprehensive physiological monitoring while reducing overall device complexity compared to using separate sensor units.
Solution Approach 2:
The sensor module is designed as a universal platform that can simultaneously perform multiple functions: ECG signal acquisition, PPG blood oxygen measurement, motion detection via accelerometer and gyroscope, altitude measurement via barometer, temperature monitoring, and bioimpedance analysis. This multi-functionality eliminates the need for separate dedicated devices for each physiological parameter.
2Adaptability or versatility
If multiple sensors are used to collect physiological signals, then the comprehensiveness of physiological monitoring is improved, but the ease of daily real-time monitoring deteriorates
Solution Approach 1:
By integrating all sensor functions into a single compact module that can be worn on the wrist, the system becomes easy to operate for daily monitoring. Users simply wear the device and all physiological parameters are automatically collected without requiring manual operation of multiple separate sensors.
3Adaptability or versatility
If multiple sensor layers are used, then the functionality is improved, but the electromagnetic interference increases
Solution Approach 1:
The patent introduces an insulating film as an intermediary layer between the electrode base and the functional layer containing sensors. This intermediate insulating structure electrically isolates different sensor components, reducing electromagnetic interference while maintaining all necessary sensor functionalities.
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 integrated design provides a compact, streamlined structure that reduces electromagnetic interference and sensor layer count, enabling efficient, daily real-time monitoring of multiple physiological signals.
Implementation Method 1
a protective film, wherein the protective film is configured to be used for isolating an external environment
Implementation Method 2
The ultrasonic sensor module comprises a plurality of piezoresistors arranged in an array
Implementation Method 3
a first PPG sensor module, wherein the first PPG sensor module comprises a light source, an optical barrier and a first photodetector arranged in interval in sequence
Data Source
AI summary
The present invention relates to a multi-modal sensor module, comprising an electrode base, an insulating film sheet, a functional layer and a protective film; the protective film is used for isolating external environment with a side away from the functional layer for use in contacting surface of biological tissues; the functional layer comprises a substrate and at least one sensor module provided in isolation in the substrate; a side of the electrode base away from the insulating film sheet is used for contacting surface of the biological tissues; the multi-modal sensor module is in a state of collecting electrocardiogram (ECG) signal, a side of the protective film away from the functional layer and a side of the electrode base away from the insulating film sheet are both for contacting surface of the biological tissues, so that the protective film, the biological tissues and the electrode base form an ECG signal collection path. The present invention integrates each sensor module in the same functional layer for measuring various physiological signals or estimating arterial blood pressure, and the use of the electrode base and the protective film coordinates collection of the ECG signal of the biological tissues. The design is clever and the structure of the multi-modal sensor module is simplified.