Fluid Collection Assemblies Using Polyurethane and Polyethylene Foam
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Solution Overview
Problem
Existing fluid collection assemblies face challenges such as discomfort, leakage, and skin degradation due to the use of conventional porous materials that struggle to quickly receive and dry bodily fluids.
Innovation Solution
The use of fluid collection assemblies that incorporate a polyurethane foam or polyethylene foam as porous materials, which are designed to quickly receive and move bodily fluids, thereby reducing leakage and skin degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional porous materials are used in fluid collection assemblies, then the assembly structure is simple, but the material cannot quickly receive and dry bodily fluids leading to leakage and skin degradation
Solution Approach 1:
The patent employs polyurethane foam and polyethylene foam as porous materials within the fluid collection assembly. These foams provide a three-dimensional network structure with numerous voids that enable rapid absorption and transport of bodily fluids through capillary action, directly resolving the contradiction between simple structure and fast fluid handling capability
Solution Approach 2:
The patent combines different types of foam materials (polyurethane foam and polyethylene foam) to create a composite porous material system. This composite approach leverages the complementary properties of each foam type to achieve both rapid fluid reception and effective drying, eliminating leakage and skin degradation risks
2Productivity
If conventional porous materials are used, then manufacturing is simple, but the material cannot quickly move bodily fluids causing discomfort and skin degradation
Solution Approach 1:
The foam-based porous materials provide extensive internal surface area and capillary networks that rapidly wick and move bodily fluids away from the contact area. This high productivity in fluid removal directly prevents skin degradation and discomfort by maintaining dryness of the skin surface
Solution Approach 2:
The patent utilizes the inherent porosity and hydrophobicity parameters of foam materials to optimize fluid movement. By selecting foams with specific pore sizes, surface areas, and contact angles, the system achieves rapid fluid transport while maintaining comfort and preventing skin degradation
3Ease of operation
If conventional materials are used, then the device is simple, but leakage occurs due to slow fluid reception capability
Solution Approach 1:
The foam porous materials provide rapid fluid reception through capillary absorption, ensuring that bodily fluids are quickly taken up and contained within the assembly. This high-speed reception prevents overflow and leakage, directly improving both ease of operation and reliability
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 described fluid collection assemblies effectively manage bodily fluids by quickly receiving and removing them, reducing the risk of leakage and skin degradation, and allowing for prolonged use without discomfort.
Implementation Method 1
The at least one porous material includes a polyurethane foam or polyethylene foam, which are designed to quickly receive and move bodily fluids
Implementation Method 2
a suction provided to the chamber from the vacuum source removes one or more bodily fluids from the chamber and deposits the one or more bodily fluids in the fluid storage container
Data Source
AI summary
An example fluid collection assembly includes a fluid impermeable barrier. The fluid impermeable barrier at least defines a chamber, at least one opening. and a fluid outlet. The fluid collection assembly also includes at least one porous material disposed in the chamber. The porous material includes at least one of a polyurethane foam or a polyethylene foam. In an example, the porous material includes an outer layer disposed on an inner layer, wherein the outer layer includes the polyurethane foam and the inner layer includes the polyethylene foam.