Low-Profile Off-Loading Conduit for Negative-Pressure Therapy
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Solution Overview
Problem
Existing wound treatment systems face challenges in efficiently managing fluid from tissue sites, including leaks and blockages, which can disrupt negative-pressure therapy and instillation therapy, leading to patient discomfort and waste.
Innovation Solution
A therapy system comprising a tissue interface with integrated fluid pathways and sensors to monitor and maintain negative pressure, along with a cover layer for sealing, which includes a bridge with lumens and apertures for fluid management and a controller for real-time feedback and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fluid management systems are used in negative-pressure therapy, then fluid can be removed from tissue sites, but leaks and blockages occur disrupting therapy
Solution Approach 1:
The fluid management system is divided into multiple independent channels: a first fluid channel for negative-pressure therapy and a second fluid channel for instillation therapy. These channels are separated by a partition within the applicator, preventing cross-contamination and ensuring that blockages or leaks in one channel do not disrupt the other channel's function, thereby maintaining overall therapy reliability
Solution Approach 2:
A fluid communication member (such as a valve or connector) serves as an intermediary between the two fluid channels and the external fluid sources/sinks. This intermediary allows controlled fluid transfer and isolation, enabling the system to manage multiple fluid pathways independently while preventing harmful leaks and blockages from propagating between channels
2Adaptability or versatility
If multiple fluid channels are integrated into the applicator, then both negative-pressure and instillation therapy can be provided, but device complexity increases
Solution Approach 1:
The applicator integrates multiple fluid channels (first fluid channel for negative-pressure, second fluid channel for instillation) and multiple apertures within a single unified structure. This merging of functions into one component eliminates the need for separate applicators for different therapy types, reducing overall system complexity while maintaining versatility
Solution Approach 2:
The applicator is designed as a universal component that can perform multiple functions: it can deliver negative-pressure therapy through the first fluid channel, deliver instillation therapy through the second fluid channel, or both simultaneously. This multi-functionality is achieved through integrated fluid pathways and control mechanisms within the single applicator body
Data Source
AI summary
An apparatus for managing fluid from a tissue site may include a first layer and a second layer. The first layer may comprise a first end, a second end, a first surface, a thickness between the first surface and the second surface, a first fluid pathway disposed in the first surface, and a second fluid pathway disposed in the first surface. The first fluid pathway and the second fluid pathway can extend from the first end to the second end. The second layer may have a first end, a second end, a first surface, and a second surface. The second surface of the second layer can be coupled to the first surface of the first layer.