Biodegradable Sensor Pad Non-Slip Cover
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Solution Overview
Problem
Conventional sensor pads made of PVC material are prone to displacement and detachment due to their smooth surface, and are affected by temperature and humidity, leading to environmental pollution and user dissatisfaction.
Innovation Solution
A sensor pad with an outer cover comprising biodegradable materials forming an accommodating cavity, including a non-slip layer to prevent shifting and featuring a waterproof design that uses PBAT/PLA polymers, which are non-toxic and resistant to temperature and humidity fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional PVC material is used for sensor pad cover, then the material provides a relatively smooth surface, but the sensor pad becomes easily displaced and detached when user moves
Solution Approach 1:
The patent uses a composite material structure consisting of a non-slip layer (first surface layer) and a waterproof layer (second surface layer) made from biodegradable materials. This composite structure provides both anti-displacement properties through the non-slip layer and waterproofing through the waterproof layer, while maintaining environmental friendliness through biodegradability.
Solution Approach 2:
The patent applies different functional properties to different layers: the first surface layer (non-slip layer) provides high friction and anti-displacement properties, while the second surface layer (waterproof layer) provides waterproofing. Each layer is optimized for its specific function, resolving the contradiction between manufacturability and stability.
2Ease of manufacture
If conventional PVC material is used for sensor pad cover, then the material is easy to manufacture, but the pad becomes increasingly slippery as humidity increases
Solution Approach 1:
The patent changes the material parameters by using biodegradable materials with different hydrophobicity and friction characteristics compared to conventional PVC. The non-slip layer is specifically designed to maintain high friction coefficients under humid conditions, preventing the pad from becoming slippery when humidity increases.
3Ease of operation
If conventional PVC material is used for sensor pad cover, then the material provides smooth surface, but the pad causes environmental pollution due to non-biodegradability
Solution Approach 1:
The patent addresses the environmental pollution issue by using biodegradable materials that can naturally decompose after disposal. The outer cover and waterproof layer are made from biodegradable materials, allowing the product to be discarded without causing long-term environmental harm, thus resolving the contradiction between operational ease and environmental friendliness.
4Ease of manufacture
If conventional PVC material is used for sensor pad cover, then the material is cost-effective, but the pad degrades in cooler temperatures
Solution Approach 1:
The patent uses composite biodegradable materials that maintain structural stability across a wider temperature range compared to conventional PVC. The multi-layer structure with appropriate material selection ensures the pad does not degrade in cooler temperatures while remaining cost-effective through the use of environmentally friendly materials.
Data Source
AI summary
Disclosed is a sensor pad which may be used for medical/health care applications. The sensor pad may comprise an outer cover and a sensor pad body, the outer cover comprising a first surface layer and a second surface layer which form an accommodating cavity configured to receive sensor pad body, the first surface layer further comprising a non-slip layer, wherein both the first and second surface layers are formed from at least one biodegradable material for reduced environmental pollution.