Fluid Blockage Device for Negative-Pressure Therapy
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Solution Overview
Problem
Current negative-pressure therapy systems for tissue treatment lack effective mechanisms to prevent contamination, particularly when exposed to liquids, which can compromise the integrity of the therapy process and equipment.
Innovation Solution
The system incorporates a fluid blockage device with an absorbent material that swells when exposed to liquid, preventing fluid communication between the reduced-pressure source and the tissue site, thereby maintaining a sterile environment and protecting the therapy system components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the reduced-pressure port remains open for fluid communication, then the therapy system can operate continuously, but contamination can occur when liquids are present
Solution Approach 1:
The fluid blockage device is pre-positioned within the reduced-pressure port in a non-blocking state that allows fluid communication. When liquid contamination occurs, the device automatically swells to block the port, preventing further contamination while maintaining system integrity and allowing for controlled shutdown and replacement.
2Reliability
If a fluid blockage device is added to prevent contamination, then sterility is maintained, but device complexity increases
Solution Approach 1:
The fluid blockage device utilizes the liquid contamination itself as the triggering mechanism. When liquid enters the reduced-pressure port, it automatically causes the hydrophilic material to swell and block the port, eliminating the need for external sensors, actuators, or control systems to detect and respond to contamination.
3Reliability
If the fluid blockage device blocks the reduced-pressure port, then contamination is prevented, but fluid communication is interrupted
Solution Approach 1:
The fluid blockage device is designed as a disposable component integrated into the canister assembly. When it activates to block contamination, the entire canister assembly can be quickly replaced, minimizing therapy interruption time while ensuring sterility protection.
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 solution effectively prevents contamination and ensures the continued operation of the therapy system by blocking fluid communication when liquids are present, thus maintaining the integrity of the treatment process and equipment.
Implementation Method 1
The fluid blockage device may include an absorbent material configured to swell when exposed to a liquid
Data Source
AI summary
In some examples, provided is a fluid blockage device for use with a reduced-pressure source for treating a tissue site with reduced pressure. The fluid blockage device may be configured to preclude fluid communication through a port fluidly coupled to the reduced-pressure source when the fluid blockage device contacts a liquid. Other devices, systems, and methods are disclosed.