Hearing Device Optical Measurement Placement Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hearing devices with optical measurement capabilities face accuracy degradation due to improper placement or displacement, affecting the accuracy of measurements such as heart rate, blood pressure, and oxygen saturation.
Innovation Solution
A hearing system that emits an output signal and uses a sensor outside the ear canal to detect this signal, determining a quality metric for the optical measurement based on signal attenuation, ensuring the hearing device is properly positioned for accurate measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the hearing device is worn by the user, then the optical measurement can be performed, but motion and/or posture may displace the hearing device affecting measurement accuracy
Solution Approach 1:
The system performs preliminary verification of proper device placement by detecting the output signal from the emitting device. Before conducting the optical measurement, the system checks whether the hearing device is correctly positioned in the ear canal by verifying signal attenuation. This preliminary action ensures that measurements are only taken when placement is confirmed, preventing inaccurate readings due to improper positioning.
Solution Approach 2:
The system continuously monitors the output signal from the emitting device and uses this feedback to determine placement quality. The detected signal level provides real-time information about device positioning, allowing the system to adjust or discard measurements based on placement accuracy. This feedback mechanism ensures reliable measurement conditions are maintained throughout the measurement process.
2Ease of operation
If the hearing device is not properly placed, then the device can still be worn, but the optical measurement accuracy is degraded
Solution Approach 1:
The system provides feedback about placement quality through signal detection. By monitoring the output signal from the emitting device, the system can determine whether the hearing device is properly seated in the ear canal. This feedback allows the system to distinguish between acceptable and unacceptable placements, enabling it to either prompt repositioning or discard measurements from improperly placed devices.
Solution Approach 2:
The system converts the potentially harmful effect of improper placement into a useful indicator. By detecting the output signal that would normally represent a placement error, the system actually gains valuable information about placement quality. The presence or absence of signal attenuation becomes a beneficial diagnostic tool for ensuring measurement accuracy, turning what could be a source of error into a verification mechanism.
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
Improves the accuracy of optical measurements by confirming proper placement of the hearing device and adjusting settings or operations accordingly, such as prompting repositioning or disabling the measurement device if not properly seated.
Implementation Method 1
determine, based on the sensor data, a quality metric for an optical measurement performed or to be performed by the optical measurement device
Data Source
AI summary
An illustrative hearing system may be configured to cause an emitting device included in a hearing device to emit an output signal while the hearing device is at least partially positioned within an ear canal of a user and cause a sensor positioned outside the ear canal to attempt to detect the output signal. The sensor may be configured to output sensor data representative of one or more signals detected by the sensor during a time period corresponding to the emitting of the output signal by the emitting device. The hearing system may further be configured to determine, based on the sensor data, a quality metric for an optical measurement performed or to be performed by an optical measurement device included in the hearing device.