Air-Powered Wound Irrigation System with Variable Pressure Control
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Solution Overview
Problem
Current wound irrigation methods, particularly in field settings, face challenges in consistently achieving optimal water pressure and solution flow, leading to inadequate cleaning and potential complications such as poor healing or infection, due to variability in provider technique and the reliance on non-adaptable electrical devices.
Innovation Solution
The development of an air-powered, handheld wound irrigation system that utilizes a regulator port and roller actuator to adjust fluid pressure between 1-60 psi, allowing for continuous variable pressure irrigation, and can be powered by various pressurized gas sources, including medical air systems and CO2 cartridges, ensuring consistent and controlled wound cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual syringe irrigation is used, then portability is maintained, but water pressure consistency and irrigation effectiveness deteriorate
Solution Approach 1:
The system uses a pressurized gas reservoir connected to the irrigation solution container to deliver consistent water pressure to the wound site. The gas pressure is transmitted through fluid communication to the irrigation solution, ensuring reliable and consistent irrigation pressure while maintaining portability through a handheld device design.
2Reliability
If electrical powered irrigation devices are used, then water pressure consistency improves, but adaptability to field settings deteriorates
Solution Approach 1:
The system replaces electrical power sources with a pressurized gas reservoir that can be powered by various gas sources (manual pump, CO2 cartridge, or external gas supply), making it adaptable to field settings without requiring electrical infrastructure while maintaining consistent water pressure through pneumatic-hydraulic transmission.
Solution Approach 2:
The device is designed to accept multiple power sources including manual pumps, CO2 cartridges, and external gas supplies, making it universally adaptable to different field settings and operational requirements while maintaining consistent irrigation performance.
3Device complexity
If fixed pressure irrigation systems are used, then device complexity is reduced, but irrigation effectiveness for different wound types deteriorates
Solution Approach 1:
The system incorporates an adjustable pressure regulator that allows the operator to dynamically adjust the water pressure delivered to the wound site. This enables adaptation of irrigation parameters to match different wound types and treatment requirements while maintaining a relatively simple overall device structure.
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 system provides a reliable and adaptable means to achieve consistent wound irrigation, facilitating effective cleaning and debridement by allowing operators to adjust pressure and flow rate, thereby enhancing wound healing outcomes and reducing the risk of complications.
Implementation Method 1
pressurized gas source in fluid communication with the container to pressurize an irrigation solution held within the container
Implementation Method 2
The roller actuator may be moved in a first direction to occlude the regulator port to increase an internal pressure of the container
Data Source
AI summary
Medical wound irrigation systems are described that may be used in environments such as hospitals and first aid stations, and for military applications, e.g., for medics and along transport routes for the wounded. The irrigation systems can provide continuous variable pressure for irrigating a wound. For example, in some embodiments, a medical irrigation system can be used to provide a steady pressure level while irrigating about one liter of solution in less than about one minute, e.g., to assist during wound irrigation and debridement. The medical irrigation system may include an air-powered irrigation device, which pressurizes an irrigation solution, such as a cleansing fluid, to create an ejection force. In some embodiments, the medical irrigation system can include a replaceable bottle cap with an inlet for connecting to a source of pressurized fluid (e.g., pressurized gas, such as pressurized air) and an outlet for the irrigation solution/cleansing fluid.