C-Shaped Neckband Breathing Sensor for Side-Sleep Stability
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Solution Overview
Problem
Existing neckband-type breathing sound measurement devices struggle with accurate sound acquisition due to size and shape variations among users, causing discomfort and measurement interference during sleep, particularly when users lie sideways.
Innovation Solution
A C-shaped neckband with a measurement section contacting the front neck and a pressing portion on the rear neck, coupled via a hinge for adjustable fit and rotation, minimizing discomfort and preventing detachment from bedding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a C-shaped neckband is used to acquire breathing sound directly from the airway, then measurement precision is improved, but the subject feels great unpleasantness due to the neckband shape
Solution Approach 1:
The neckband is divided into multiple size categories (S, M, L, XL, etc.) with different circumferences. Each size is designed to fit specific neck circumference ranges, allowing subjects to select the appropriate size to minimize discomfort while maintaining measurement accuracy. The segmentation approach resolves the contradiction by providing size-specific solutions rather than a one-size-fits-all design.
Solution Approach 2:
The front portion of the neckband that contacts the airway is designed with specific contact pressure characteristics to ensure accurate breathing sound measurement, while the rear portion is designed with different characteristics to minimize discomfort. This local differentiation allows the device to optimize for measurement precision in the contact area while reducing harmful effects in non-contact areas.
2Adaptability or versatility
If ready-made neckbands of multiple sizes are provided, then adaptability to different neck circumferences is improved, but it remains difficult to accurately adjust sizes to each subject due to variations in neck shape
Solution Approach 1:
The neckband incorporates an adjustable mechanism that allows continuous modification of the neckband circumference parameter. Subjects can adjust the neckband to achieve optimal fit for their specific neck shape and size, rather than being limited to discrete size categories. This parameter change capability resolves the contradiction by providing both wide adaptability and precise adjustment.
3Measurement precision
If the neckband is pressed against the neck to acquire breathing sound, then measurement precision is improved, but the subject feels squeezing discomfort
Solution Approach 1:
The neckband applies pressure selectively only to the front portion where the airway contact is needed for measurement, rather than pressing uniformly around the entire neck circumference. This partial action approach achieves the necessary measurement precision while minimizing excessive force and discomfort on the rear portion of the neck.
4Measurement precision
If the neckband extends to the front of the subject, then breathing sound measurement is improved, but the neckband may be detached or interfered with when the subject lies sideways
Solution Approach 1:
The neckband is designed with asymmetric extension: the front portion extends to contact the airway for measurement, while the rear portion is limited in extension to prevent interference when lying sideways. This asymmetric design resolves the contradiction by optimizing for measurement precision in the forward direction while maintaining reliability during lateral sleeping positions.
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 device provides accurate breathing sound measurement while reducing discomfort and interference, allowing for precise adjustment to individual neck sizes and preventing detachment during sleep.
Implementation Method 1
a wearing section configured to have a first end connected to the measurement section and have elasticity to extend in a circular arc shape along an outer circumference of the subject's neck
Data Source
AI summary
A breathing sound measurement device includes a measurement section configured to be brought into contact with a skin of a front neck of a subject and measure breathing sound of the subject and a wearing section configured to have a first end connected to the measurement section and have elasticity to extend in a circular arc shape along an outer circumference of the subject's neck. The wearing section has a second end provided with a pressing portion configured to be pressed against a skin of a rear neck opposite a right front neck with respect to a midpoint between right and left halves of the subject's neck.