Wearable Sensor Elastic Band Fastening Slots
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wearable sensor devices face challenges in providing accurate pressure control and comfort due to variations in limb diameters, as traditional elastic bands with clasps often result in non-uniform elasticity and discomfort.
Innovation Solution
A wearable sensing device with an elastic band attached via fasteners inserted into elongated slots on the sensor carrier, ensuring uniform elasticity and controlled pressure, allowing for adjustable length and secure attachment without folds or double layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastic bands are fastened by folding over a bar of the device, then the band can be attached to the wearable device, but the elasticity modulus becomes non-uniform causing inaccurate pressure application
Solution Approach 1:
The patent extracts the problematic folding mechanism and replaces it with a fastener-based attachment system. The elastic band is attached by inserting fasteners through holes in the band and into the device housing, eliminating the fold-over bar mechanism that caused non-uniform elasticity and pressure inaccuracy.
Solution Approach 2:
The patent changes the attachment mechanism from a mechanical fold-over system to a fastener insertion system. This parameter change in the attachment method ensures uniform distribution of elastic force across the band length, maintaining consistent elasticity modulus and accurate pressure application to the sensor.
2Adaptability or versatility
If elastic bands are used to accommodate variation in limb diameter, then the device can fit different users, but uniform pressure control becomes difficult
Solution Approach 1:
The patent employs a dynamic fastening system where the elastic band can be adjusted by inserting or removing fasteners at different positions along the band. This allows the band length and tension to be dynamically adjusted for each user's limb diameter while maintaining uniform pressure distribution through the fastener attachment points.
Solution Approach 2:
The elastic band with multiple fastening points serves multiple functions: it accommodates various limb diameters through adjustable length, maintains uniform pressure distribution through fastener attachment, and provides secure attachment without folding. This universal design works for different user sizes while preserving pressure control accuracy.
3Reliability
If clasps are used on elastic bands, then the band can be secured to the device, but comfort is reduced due to pinching or squeezing
Solution Approach 1:
The patent removes the traditional clasp mechanism from the elastic band and replaces it with a fastener insertion system through holes in the band. This extraction of the clasp eliminates the pinching and squeezing effects on the skin while maintaining secure attachment through the fastener-device housing connection.
Solution Approach 2:
The patent introduces fasteners as intermediary elements between the elastic band and the device housing. These fasteners provide secure attachment by engaging with holes in the band and the housing, eliminating direct contact between clasps and the skin, thereby preventing pinching and squeezing discomfort.
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 solution provides accurate pressure control and enhanced comfort by maintaining uniform elasticity over the elastic band's length, accommodating various limb diameters and preventing pinching or squeezing, while allowing for easy adjustment and trimming for a secure fit.
Implementation Method 1
an elastic band having two ends... ensures the uniform elasticity modulus to be maintained over the entire length of the elastic band
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A wearable sensing device, comprising a sensor carrier having a sensor at a lower side for touching the wearers skin, an elastic band having two ends, a fastener attached to each end of the band, two elongated fastening slots extending from a top side opposite to the lower side of the sensor carrier, wherein the elongated fastening slots are located at opposite locations near an edge of the sensor carrier. The elongated fastening slots are arranged for receiving the fasteners. The lower side having the sensor is the side of the sensor device to be pressed against the subject's skin. The opposite side is visible side of the sensor device and is exposed to the environment. The lower side may contact the skin of a limb, e.g. an arm of the subject wearing the device, allowing it to perform its measurements.