Low-Profile Fluid Conductor for Wound Moisture and Suction Flow
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Solution Overview
Problem
Existing negative-pressure therapy systems lack efficient mechanisms for fluid management and moisture handling, which can impede wound healing and treatment efficacy.
Innovation Solution
The development of low-profile fluid conductors with integrated apertures and moisture-vapor transmission capabilities, allowing for controlled fluid flow and vapor exchange, enhancing the efficiency of negative-pressure therapy systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional fluid conductors are used in negative-pressure therapy systems, then the system structure is simple, but fluid management efficiency is poor and moisture handling is insufficient
Solution Approach 1:
The patent combines multiple fluid pathways (first and second fluid pathways) and moisture management features (apertures, hydrophobic membranes) into a single integrated fluid conductor. This merging of functions allows the conductor to simultaneously perform fluid transport, moisture vapor transmission, and controlled fluid distribution, thereby improving fluid management efficiency without requiring multiple separate components
Solution Approach 2:
The fluid conductor is designed with multi-functionality, serving as both a fluid transport conduit and a moisture management device. The inclusion of apertures with hydrophobic membranes enables the same structure to handle both liquid fluid flow and water vapor transmission, making the device universally applicable for both fluid delivery and moisture control in negative-pressure therapy
2Reliability
If fluid conductors without moisture-vapor transmission capabilities are used, then manufacturing is simpler, but wound healing is impeded due to poor moisture handling
Solution Approach 1:
The patent incorporates hydrophobic membranes with specific pore structures into the fluid conductor. These porous materials allow water vapor molecules to pass through while blocking larger liquid fluid molecules, enabling moisture vapor transmission capabilities. The porous structure is integrated during manufacturing, achieving both improved wound healing through moisture management and reasonable manufacturing feasibility
Solution Approach 2:
The fluid conductor utilizes composite material construction, combining materials with different properties (hydrophobic membranes, aperture structures, fluid pathway materials) into a single integrated component. This composite approach enables the conductor to simultaneously achieve moisture vapor transmission, fluid flow control, and structural integrity, improving wound healing effectiveness while maintaining manufacturing practicality
3Ease of operation
If apertures are added to the fluid conductor for controlled fluid flow, then fluid distribution is improved, but device complexity increases
Solution Approach 1:
The fluid conductor is segmented into distinct functional zones: first fluid pathway, second fluid pathway, and aperture regions with hydrophobic membranes. This segmentation allows controlled fluid flow through the apertures from the first pathway to the second pathway, improving fluid distribution control. Each segment performs a specific function, making the overall complex structure manageable and purposeful
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
Improves wound healing by effectively managing fluid and moisture, promoting tissue growth and reducing healing times through optimized fluid conductors with integrated apertures and moisture-vapor transmission.
Implementation Method 1
If negative pressure is applied to the first fluid pathway, the second fluid pathway and the aperture are configured to draw fluid from the ambient environment through the aperture, into the second fluid pathway
Implementation Method 2
at least a portion of the side of the fluid conductor configured to face the patient may comprise a material having a high moisture-vapor transmission rate that can permit evaporated moisture to pass into the second fluid conductor
Implementation Method 3
a material having a high moisture-vapor transmission rate that can permit evaporated moisture to pass into the second fluid conductor
Data Source
AI summary
An apparatus for conducting fluid may comprise a first layer, a second layer, and a third layer sealed to form a first fluid pathway and a second fluid pathway in a stacked relationship. An aperture may be disposed at a first end of the second fluid pathway. Upon the application of a negative pressure, fluid may be drawn through the third aperture, into the second fluid pathway, and through the first fluid pathway. The apparatus may be fluidly coupled to a dressing at a tissue site. At least a portion of the third layer may be configured to allow moisture to evaporate from a periwound into the second fluid pathway. The fluid drawn through the third aperture may aid in removal of the evaporated moisture within the second fluid pathway, as well as moisture directly from the periwound, to reduce the risk of maceration to the periwound.