Cylindrical Absorbent Article Winding Mechanism
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Solution Overview
Problem
Conventional absorbent articles for medical treatment and menstruation face issues with the elimination part being easily disconnected, leading to fibers from the absorption layer remaining in the vagina or surgical operation area, and inadequate fluid control during surgical operations.
Innovation Solution
A cylindrical absorbent article is formed by winding a flat absorbent article with an absorption layer on top of a liquid penetration layer, where the elimination part is securely fixed through winding rather than sewing, ensuring the absorption and elimination of fluids without fiber separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the elimination part is connected to the absorbent article by sewing, then the connection is established, but the connection may be defective and the string may disconnect during use
Solution Approach 1:
The patent replaces the sewing mechanism (mechanical fastening) with a winding mechanism. The elimination part is wound around the absorbent article multiple times to create friction-based fixation, eliminating the need for needles, threads, and sewing operations. This substitution resolves the contradiction by providing reliable connection through friction and geometry rather than mechanical stitching.
Solution Approach 2:
The elimination part is designed as a separate component that can be independently wound around the absorbent article. This segmentation allows the elimination part to be securely fixed through the winding action itself, rather than requiring pre-attached sewing connections. The winding process creates multiple contact points that collectively secure the elimination part reliably.
2Shape
If the absorbent article is cut to form a cylindrical shape, then the cylindrical form is achieved, but fiber separation occurs at the cut surface
Solution Approach 1:
The patent transitions from a flat cut surface (2D edge) to a wrapped cylindrical structure (3D form). By winding the absorbent article into a cylinder, the cut edges are no longer exposed as separate surfaces but are instead contained within the cylindrical structure. This dimensional change eliminates the harmful fiber separation effect by removing the exposed cut surfaces that cause it.
Solution Approach 2:
The absorbent article layers are nested within each other in the cylindrical configuration. The inner layers contain and constrain the outer layers, preventing fiber separation at what would otherwise be exposed cut surfaces. The nested structure effectively hides and secures the cut edges within the cylindrical form.
3Ease of repair
If conventional linen is reused after washing and disinfection, then resource utilization is improved, but contamination risk increases
Solution Approach 1:
The patent employs a disposable absorbent article design where the product is used once and then discarded. This eliminates the contamination risk associated with reusing linen by ensuring that each article is used only once and never re-entered into the circulation system. The disposable nature prioritizes hygiene and safety over resource utilization through reuse.
4Object-affected harmful factors
If disposable nonwoven fabric is used for surgical operations, then contamination is reduced, but fluid control capability is insufficient
Solution Approach 1:
The patent uses a composite structure combining an absorbent layer (for fluid absorption) with a nonwoven fabric outer layer (for contamination control and structural integrity). This composite material approach allows the product to simultaneously achieve both contamination resistance from the nonwoven layer and effective fluid control from the absorbent layer, resolving the contradiction between these two requirements.
Solution Approach 2:
The absorbent article is segmented into functional layers: an absorbent layer for fluid control and a nonwoven fabric layer for contamination protection. This segmentation allows each layer to specialize in its respective function, with the nonwoven layer providing contamination barriers and the absorbent layer providing fluid management, thereby achieving both contamination control and fluid control reliability simultaneously.
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
This design prevents fiber separation during use, provides safe and sanitary tampon use, and allows for quick and effective blood absorption during surgical operations, maintaining a clear field of vision for surgeons.
Implementation Method 1
a liquid penetration layer which allows liquid to penetrate
Implementation Method 2
an absorption layer generally made from a fiber material is placed on a penetration layer which allows liquid to penetrate
Data Source
AI summary
The present invention relates to an absorbent fabric for medical treatment or menstruation, and more particularly, to a convenient and sanitary absorbent article to be used as a tampon, a blood-absorbing fabric for surgery, etc. The present invention provides an absorbent article for medical treatment or menstruation, wherein a flat absorbent article is provided with removal means and is formed into a cylindrical shape. The flat absorbent article is formed by forming an absorbent layer on a liquid passage layer. The removal means is arranged to cover the liquid passage layer and the absorbent layer of the flat absorbent article in the widthwise direction, and a portion of the removal means is outwardly exposed from the flat absorbent article in the widthwise direction of the flat absorbent article. The flat absorbent article is wound in the lengthwise direction and thus is formed into a cylindrical absorbent article, thereby fixing the removal means in the cylindrical absorbent article.