Stacked Sound Chambers for Waterproof Medical Device Audio
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Solution Overview
Problem
Waterproof medical devices, such as insulin pumps, face challenges in generating audible alerts effectively due to their fully sealed design, which prevents sound from propagating efficiently.
Innovation Solution
The use of a plurality of sound chambers arranged in a stacked configuration, combined with one or more diaphragms and an external housing with an overlay cover, allows for the generation of audible alerts by propagating sound through the device while maintaining a waterproof seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a medical device is made fully sealed to be waterproof, then water resistance is improved, but sound propagation is worsened
Solution Approach 1:
The device is divided into multiple sealed sound chambers (first sound chamber, second sound chamber, third sound chamber) that are stacked together. Each chamber is hermetically sealed to maintain water resistance, while collectively they enable sound propagation through the stacked configuration. The segmentation allows sound to travel through multiple isolated chambers without compromising the waterproof seal.
Solution Approach 2:
The sound chambers are arranged in a stacked vertical configuration rather than a horizontal or single-chamber layout. This dimensional arrangement allows sound to propagate through the depth of the device while maintaining external waterproof sealing. The overlay cover at the front face vibrates to transmit sound outward without requiring openings in the external housing.
2Object-generated harmful factors
If sound chambers are arranged in a stacked configuration, then sound propagation is improved, but device complexity is worsened
Solution Approach 1:
Multiple sound chambers are merged into a single stacked assembly that functions as an integrated sound propagation system. The chambers are coupled together with sealed connections, and the overlay cover is integrated with the front face of the device housing. This merging reduces the complexity of having separate sound transmission mechanisms while achieving effective sound propagation through the combined stacked structure.
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
This solution enables medical devices to produce sound levels sufficient for alerts to be heard by users, even when the device is fully enclosed, while maintaining a rigorous water seal and minimizing sound loss.
Implementation Method 1
a speaker configured to generate a sound that propagates through the medical device through a plurality of sound chambers in a stacked configuration
Implementation Method 2
the overlay cover is configured to vibrate in response to the sound propagating through the plurality of sound chambers
Implementation Method 3
each of the one or more diaphragms separates respective sound chambers in the stacked configuration and vibrates in response to the sound propagating from a first sound chamber of the respective sound chambers to a second sound chamber of the respective sound chambers
Data Source
AI summary
In general, the disclosure describes techniques for generating sounds in fully sealed medical devices. The example techniques for generating sounds in medical devices include the use of a plurality of sound chambers arranged in a stacked configuration that propagate the sound, along with one or more diaphragms configured to vibrate in response to the sound propagating through the medical device. In one or more examples, an external housing that includes an overlay cover may fully enclose the medical device, where the overlay cover (e.g., the entire overlay cover or a part of the overlay cover) also vibrates to propagate the sound out of the medical device.