Compression Detection and Compensation for Biological Sensors
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Solution Overview
Problem
Biological sensors, such as glucose monitors, experience inaccurate readings due to compression by the user's body weight, leading to artificial drops in detected glucose levels, which can result in erroneous sensor readings and inadequate medicament delivery.
Innovation Solution
An electronic device equipped with a medicament delivery unit, a biological sensor, and a compression sensor that detects excessive compression, triggering alarms and adjusting medicament delivery or sensor data to compensate for compression, ensuring accurate readings and appropriate medicament administration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the biological sensor is attached to the user for continuous monitoring, then the sensor can detect biological information on an ongoing basis, but the sensor may be unintentionally compressed by the user's body weight, causing inaccurate readings
Solution Approach 1:
The system incorporates a compression sensor that continuously monitors compression forces on the biological sensor and feeds this information back to the processor. When compression exceeds a threshold, the system generates a notification to alert the user, enabling real-time correction of the harmful compression effect while maintaining continuous monitoring functionality
Solution Approach 2:
A compression sensor is introduced as an intermediary element between the user's body and the biological sensor. This intermediary detects compression forces and enables the system to distinguish between intentional pressure (for sensor attachment) and unintentional compression (during sleep or sitting), allowing selective compensation or alerting without disrupting continuous monitoring
2Measurement precision
If compression of the biological sensor occurs, then the sensor remains in contact with the user's body, but the interstitial space decreases causing erroneous sensor readings
Solution Approach 1:
The compression sensor provides continuous feedback on interstitial space compression, allowing the processor to detect when compression reduces the space below acceptable thresholds. The system responds by notifying the user to adjust their position, thereby maintaining adequate interstitial space volume for accurate measurement without compromising sensor contact
Solution Approach 2:
The system performs preliminary detection of compression forces before they cause significant reduction in interstitial space volume. By detecting compression early and alerting the user proactively, the system prevents erroneous readings before they occur, maintaining measurement precision throughout the monitoring period
Data Source
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AI summary
The exemplary embodiments may detect compression of a biological sensor and/or biological tissue of the user and may prompt or take corrective action to address the compression. A compression sensor may be provided to sense compression of the biological sensor and/or biological tissue of the user . Sensor data from the compression sensor may be processed to detect the compression. The detection of the compression may trigger corrective action. The corrective action may include an alert to alert the user to suggest a change in position or body orientation so as to alleviate the compression. The corrective action may include adjusting the biological sensor data to compensate for the compression or may include adjusting the quantity or rate of medicament delivered to a user to compensate for the compression. In some exemplary embodiments a data logger is provided to work with the biological sensor. The data logger may automatically log compression sensor data and biological sensor data.