Wound Dressing Peripheral Tube Extraction for Airtight Negative Pressure
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Solution Overview
Problem
Conventional negative pressure wound therapy (NPWT) systems face issues with poor airtightness, patient discomfort, and tube clogging due to the placement of drainage tubes above the wound, which can deform the wound patch, cause detachment, and lead to bending of tubes.
Innovation Solution
A wound treatment apparatus comprising an adhesive film with holes, a flexible water-resistant material with accommodation spaces and holes, and a porous matrix, where the holes communicate to form a hermetic environment, allowing negative pressure application without tubes above the wound and preventing tube bending and clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If drainage tubes are placed above the wound to apply negative pressure, then fluid drainage function is achieved, but the wound patch may be deformed or damaged and airtightness deteriorates
Solution Approach 1:
The drainage tube is extracted from its conventional position above the wound and relocated to the periphery of the wound patch. The peripheral region of the patch is equipped with drainage ports that connect to the tube, allowing fluid drainage while keeping the tube away from the central wound area, thus preventing deformation or damage to the wound patch and maintaining airtightness.
2Productivity
If drainage tubes are placed above the wound, then fluid drainage is enabled, but tubes may bend and clog affecting healing
Solution Approach 1:
The drainage tube is extracted from the central wound area and repositioned to the periphery of the wound patch. This peripheral positioning reduces mechanical stress and bending on the tube, preventing clogging and maintaining reliable fluid drainage throughout the healing process.
3Productivity
If obstructive structure with tubes is placed on the wound, then negative pressure application is achieved, but patient discomfort increases especially on back or foot
Solution Approach 1:
The drainage tube and associated obstructive components are extracted from the central wound area and relocated to the periphery of the patch. This peripheral configuration reduces the obstructive structure's impact on patient comfort, particularly for wounds on the back or foot, while maintaining effective negative pressure application through the porous dressing.
4Productivity
If tubes are placed above the wound, then drainage function is achieved, but the wound environment becomes irritated and healing is compromised
Solution Approach 1:
The drainage tube is extracted from the area directly above the wound and repositioned to the periphery of the wound patch. This eliminates direct contact between the tube and wound, preventing irritation while maintaining drainage function through the porous dressing and peripheral drainage ports.
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 apparatus creates a comfortable and airtight environment for wound healing by applying negative pressure without irritating the wound and reducing the risk of tube clogging, ensuring efficient fluid drainage and continuous fluid withdrawal.
Implementation Method 1
a first portion, being an adhesive film formed with at least a first hole
Implementation Method 2
a porous matrix, received inside the accommodation space of the second portion
Implementation Method 3
applying a negative pressure pump to a patch of a bio-compatible porous wound dressing covering a wound for forming a negative pressure inside the wound
Data Source
AI summary
A wound treatment apparatus is disclosed, which comprises: a first portion, a second portion and a porous matrix. In an exemplary embodiment of the invention, the first portion, being an adhesive film, is formed with at least a first hole; and the second portion, being made of a flexible, water-resistant material, is formed with at least a second hole and at least a third hole in a manner that the at least one second hole and the at least one third hole are capable of communicating with each other and thus causes an accommodation space to be formed inside the second portion while the at least one second hole is arranged at a position corresponding to the at least one first hole as the second portion is connected to the first portion. Moreover, the porous matrix is received inside the accommodation space of the second portion.