Diaper Aeration Channel Layout to Prevent Occlusion and Backflow
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Solution Overview
Problem
Existing absorbent articles, such as diapers and incontinence garments, fail to effectively dissipate body-generated moisture, leading to skin irritation and infection due to their passive absorbency technology and low permeability outer layers, which retain moisture and heat, creating a conducive environment for infections like diaper dermatitis.
Innovation Solution
A bandage/diaper drying system incorporating a gas inlet and distribution channel with a spiral tube and vents, which directs gas under pressure to areas of moisture, enhancing evaporation and preventing contamination through check valves, allowing for improved drying and oxygen delivery to the skin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If passive absorbency technology with low-permeability outer layers is used, then moisture is retained and skin protection is provided, but moisture dissipation is limited and skin irritation occurs
Solution Approach 1:
The patent applies pneumatic principles by introducing an active gas flow system through inlet channels and distribution channels that deliver pressurized gas directly to moisture areas. This pneumatic approach actively removes moisture and irritants rather than relying on passive absorption, thereby improving moisture dissipation while maintaining skin protection.
Solution Approach 2:
The patent replaces the passive mechanical absorption system with an active gas flow system. Instead of relying on the mechanical properties of absorbent materials alone, the system uses pressurized gas flow to actively transport moisture and irritants away from the skin, thereby improving moisture dissipation efficiency.
2Reliability
If super-absorbent polymers are used to capture moisture, then moisture is absorbed without drying skin, but the environment remains moist and promotes diaper dermatitis
Solution Approach 1:
The system uses pneumatic gas flow to actively remove moisture and irritants from the diaper environment. The distribution channels deliver pressurized gas to areas with accumulated moisture, actively flushing out contaminants and reducing the moist environment that promotes diaper dermatitis, while preserving the moisture-capturing function of the polymers.
Solution Approach 2:
The patent extracts moisture and irritants from the diaper environment by introducing gas flow that carries these contaminants away from the skin area. The system selectively removes harmful moisture and fecal irritants while allowing the super-absorbent polymers to continue capturing beneficial moisture.
3Object-affected harmful factors
If a low-permeability outer layer is used to protect clothing, then moisture evaporation is prevented, but body-generated moisture cannot dissipate
Solution Approach 1:
The patent uses pneumatic gas flow to create an active moisture removal system that operates independently of the outer layer's permeability. The pressurized gas flow actively transports moisture away from the skin through internal channels, bypassing the need for moisture evaporation through the low-permeability outer layer, thereby maintaining both clothing protection and moisture dissipation.
4Adaptability or versatility
If gas distribution channels are used to deliver oxygen, then oxygen therapy is provided, but channels may occlude from external pressure
Solution Approach 1:
The patent applies different structural qualities to different parts of the gas distribution system. The inlet channels have a larger diameter and are positioned to receive pressurized gas, while the distribution channels have smaller diameters and are designed to follow the contour of the diaper. This local differentiation allows the system to deliver oxygen effectively while minimizing occlusion risks in the distribution channels.
Solution Approach 2:
The gas distribution channels are designed to be dynamic rather than rigid, allowing them to flex and adapt to external pressure from the diaper and clothing. The channels can deform under pressure without permanent occlusion, maintaining gas flow capability while accommodating the dynamic environment of diaper wear.
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 system accelerates evaporation and drying of moisture in enclosed environments, reducing the risk of skin irritation and infection while providing non-invasive, natural skin drying and oxygen therapy, effectively addressing the limitations of passive absorbency in traditional products.
Implementation Method 1
Within the gas distribution channel is a spiral tube that helps keep the gas distribution channel from occluding from forces of external pressure
Implementation Method 2
each vent has a check valve for allowing the flow of gas out of the gas distribution channel and reducing a flow of contaminates into the gas distribution channel
Implementation Method 3
The vents direct the gas towards an area of potential moisture to improve drying of that moisture when present
Data Source
AI summary
A bandage/diaper drying device includes a gas inlet and channels formed between two layers of a very thin material (e.g. plastic). A spiral tube is positioned between the two layers to reduce occlusion of the layers and maintain flow of gas from the inlet to vents that are directed to a potential source of moisture. The vents are formed on a peripheral distribution channel that is in fluid communication with the gas inlet. In a preferred embodiment, each vent has a one-way duckbill valve allowing for the flow of gas from the peripheral distribution channel to dry a diaper/bandage in which the bandage/diaper drying system is mounted. The one-way duckbill valves reduce backflow of foreign matter into the peripheral distribution channel.