Disposable Nursing Device with Back-Leakage Prevention
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Solution Overview
Problem
Existing adult paper diapers have weak back-leakage prevention properties, are difficult to remove and replace, and have a large contact area with the skin, making them inconvenient for nursing personnel to handle.
Innovation Solution
A disposable nursing device with a urine and feces back-leakage prevention collection function, featuring a paper diaper with a detachable urine and feces collection bag and catch tray, utilizing a polymer absorption layer and soft non-woven fabric, and an adhesive system for easy application and removal, with a catch tray design that prevents backflow and reduces skin contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional paper diaper structure is used, then the device is simple in structure, but the back-leakage prevention property is weak
Solution Approach 1:
The diaper is divided into distinct functional layers: a liquid-permeable outer layer, a polymer absorption layer, and a liquid-impermeable inner layer. This segmentation allows each layer to perform its specific function optimally, with the impermeable inner layer specifically addressing back-leakage prevention while maintaining overall structural simplicity
Solution Approach 2:
A polymer absorption layer is introduced as an intermediary between the outer and inner layers. This layer absorbs and retains liquid, preventing it from reaching the inner impermeable layer and causing back-leakage, thus resolving the contradiction between maintaining simple structure and improving reliability
2Ease of operation
If a traditional paper diaper is used, then the manufacturing process is simple, but the difficulty in removal and replacement is high
Solution Approach 1:
The diaper incorporates elastic edges that can dynamically expand and contract. These elastic edges are designed to be stretchable for easy insertion and removal, while maintaining their elastic recovery to ensure proper fit. This dynamic property allows nursing personnel to easily remove and replace the diaper without complex fastening mechanisms
Solution Approach 2:
The elastic edges utilize changes in physical parameters (elasticity and flexibility) to enable easy removal and replacement. By selecting appropriate elastic materials and designing the edge structure to have optimal elastic properties, the diaper can be easily manipulated during removal while maintaining manufacturing simplicity
3Ease of operation
If a traditional paper diaper is used, then the contact area with skin is large, but this makes handling inconvenient for nursing personnel
Solution Approach 1:
The diaper structure segments the contact area into functional zones: the elastic edges provide contact for secure fitting, while the main body contacts only necessary areas. This segmentation reduces unnecessary skin contact while maintaining proper fit and handling convenience for nursing personnel
Solution Approach 2:
Different parts of the diaper have different contact characteristics: the elastic edges are designed for minimal contact with high functionality, while the absorption layers contact only where necessary for their function. This local optimization reduces overall skin contact area while improving handling convenience
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 effectively collects and contains urine and feces, reducing skin irritation and the risk of bedsores, simplifying handling for nursing personnel, and minimizing the need for frequent replacements, thus improving patient dignity and reducing nursing workload.
Implementation Method 1
a middle layer is water-absorbing fluff pulp and is added with polymer water absorbing agent
Implementation Method 2
a middle layer is water-absorbing fluff pulp
Implementation Method 3
An adhesive tape is used to connect the sheet into a pair of pants. The adhesive tape also has the function of adjusting a waist size of the pants
Implementation Method 4
An upper edge of the nursing pants body is provided with an elastic edge with elasticity
Data Source
AI summary
A disposable nursing device with a urine and feces back-leakage prevention collection function includes a nursing pants body, a urine and feces collection bag and a catch tray. The nursing pants body is provided with a connecting port. The urine and feces collection bag is provided with an outer layer and an inner layer. The outer layer is a soft non-woven fabric, and the inner layer is a polymer absorption layer. A bottom portion of the urine and feces collection bag is closed, and a top portion of the urine and feces collection bag is provided with a bag opening. A urine and feces collection opening is arranged at a middle of the catch tray, and one side of the catch tray is connected with the bag opening of the urine and feces collection bag, and is connected with the connecting port on the nursing pants body.