Cold Plasma Medical Device With Catalyst For RONs Generation
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Solution Overview
Problem
Current portable medical devices for wound care using cold plasma are not approved for consumer use in the US due to ionization and plasma stability issues, focusing on high-volume and high-intensity plasma, which is not suitable for home-based treatments.
Innovation Solution
A portable, non-contact, chemical-free, and low power-consuming cold plasma medical device that generates enhanced reactive oxygen and nitrogen species (RONs) for selective wound application, using a plasma generator with a nozzle and catalyst to produce RONs at safe levels, less than 4 watts, and incorporates a photocatalyst like titanium dioxide or graphene oxide to enhance radical production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-volume and high-intensity plasma is generated outside the device by exposing it to atmospheric air, then plasma disinfection effectiveness is improved, but device portability and safety for home use deteriorate due to ionization and plasma stability issues
Solution Approach 1:
The patent extracts the plasma generation process from external atmospheric exposure and confines it within a sealed reaction chamber. The plasma is generated internally using a controlled power supply system, separating the plasma generation function from external air exposure, thereby enabling portable home use while maintaining plasma stability through controlled conditions within the chamber.
Solution Approach 2:
The patent introduces a sealed reaction chamber as an intermediary between the plasma generation system and the external environment. This chamber acts as a mediator that contains the plasma generation process, controls the atmospheric conditions inside, and prevents direct exposure to atmospheric air, thus enabling stable plasma generation in a portable device suitable for home use.
2Reliability
If plasma flow levels and distance between plasma and surface are optimized, then disinfection effectiveness is improved, but device complexity increases
Solution Approach 1:
The patent employs a movable platform that allows dynamic adjustment of the distance between the plasma generation source and the wound surface. This dynamic positioning system enables optimization of plasma flow levels and treatment distance without requiring complex fixed structural arrangements, thereby achieving effective disinfection while maintaining relatively simple device architecture.
3Use of energy by moving object
If power consumption is reduced to less than 4 watts for safe home use, then safety and portability are improved, but plasma generation capability deteriorates
Solution Approach 1:
The patent changes the operational parameters of plasma generation by using a controlled power supply system that operates at low power levels (less than 4 watts). By optimizing the electrical parameters within the sealed reaction chamber and using appropriate electrode configurations, the system achieves sufficient plasma generation capability for wound disinfection while maintaining safe and portable power consumption levels suitable for home use.
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 device provides effective disinfection of human cells, reducing hospital visits and promoting palliative care by allowing patients to treat wounds safely and conveniently at home, minimizing plasma exposure and thermal effects while maintaining stability and safety.
Implementation Method 1
The medical device will generate enhanced RONs for selective application to a wound. The power used to generate the RONs is less than 4 watts.
Implementation Method 2
Many companies have conducted research on Plasma usage in the medical field, with a focus on wound care treatment.
Implementation Method 3
incorporates a photocatalyst like titanium dioxide or graphene oxide to enhance radical production
Data Source
AI summary
A cold plasma medical device includes a plasma generator and a nozzle. The plasma generator is located within a housing. The plasma generator is configured to generate key RONs radicals from cold atmospheric plasma at energy levels less than 4 watts. The nozzle is in communication with the plasma generator and is configured to receive the cold atmospheric plasma and to enhance the RONs. The nozzle contains an electrode and a catalyst. The electrode is configured to converge the cold atmospheric plasma into the nozzle. The catalyst is adjacent the electrode and is configured to enhance the cold atmospheric plasma RONs. A controller is configured to regulate the performance of the medical device. In use, plasma with enhanced RONs is discharged through a tip of the nozzle.