Earhook Pulse Oximeter Sensor with Adjustable Fit
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Solution Overview
Problem
Existing earhook assemblies for pulse oximeter sensors are uncomfortable and require replacement when the sensor fails, as they often pinch the earlobe or are difficult to fit due to their design, leading to user discomfort and high replacement costs.
Innovation Solution
An ergonomic earhook assembly with adjustable earlobe attachment and sensor holder paddles that securely fit along the earlobe, using connector clamps and adjustment threads for customizable fit, and can transmit medical analytics wirelessly or via wired connection, incorporating a power source and textured surfaces for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional earhook assemblies are used to house permanent sensors, then sensor functionality is achieved, but the assembly becomes uncomfortable and requires frequent replacement when the sensor fails
Solution Approach 1:
The device is divided into separate modular components: a reusable earhook assembly and a replaceable sensor unit. The sensor unit can be detached and replaced independently without replacing the entire earhook assembly, allowing sensor functionality to be maintained while improving comfort through proper fit design in the earhook portion.
Solution Approach 2:
The earhook assembly incorporates adjustable components including a threaded adjustment mechanism that allows the fit to be customized to different ear shapes and sizes. This dynamic adjustability ensures optimal comfort and positioning while maintaining secure sensor functionality.
2Stability of the object's composition
If traditional earhook assemblies are designed to secure permanent sensors, then sensor stability is achieved, but the assembly pinches the earlobe or is difficult to fit
Solution Approach 1:
The sensor holder paddle is designed with differentiated zones: a textured attachment surface that provides secure grip on the earlobe without pinching, and a smooth interface surface for comfortable contact. The textured surface increases friction for stability while the overall design distributes pressure to avoid pinching harm.
Solution Approach 2:
The sensor holder paddle uses a flexible, thin design that can conform to the contours of the earlobe, providing stable sensor positioning while adapting to individual ear shapes to prevent pinching and discomfort.
3Ease of operation
If adjustable components are added to improve fit, then user comfort is improved, but device complexity increases
Solution Approach 1:
The adjustment mechanism is extracted as a separate, dedicated component within the earhook assembly rather than integrating it into the sensor unit. This allows the adjustment functionality to be simplified and optimized independently, improving comfort without adding complexity to the sensor replacement process.
Solution Approach 2:
The threaded adjustment mechanism is designed to be easily operated by the user without requiring tools or complex procedures. The self-adjusting nature of the mechanism allows users to achieve proper fit independently, improving comfort while maintaining simple device architecture.
Data Source
AI summary
A pulse oximeter sensor with earhook assembly for placement along the outside of a person's ear supported by the ear flap and ear lobe into which is placed a sensors for receiving and transmitting human body's analytics such as pulse or blood oxygen saturation.