A method for generating atmospheric pressure cold plasma inside a hand-held unit discharges cold plasma with simultaneously different rf wavelengths and their harmonics. The unit includes an rf tuning network that is powered by a low-voltage power supply connected to a series of high-voltage coils and capacitors. The rf energy signal is transferred to a primary containment chamber and dispersed through an electrode plate network of various sizes and thicknesses to create multiple frequencies. Helium gas is introduced into the first primary containment chamber, where electron separation is initiated. The energized gas flows into a secondary magnetic compression chamber, where a balanced frequency network grid with capacitance creates the final electron separation, which is inverted magnetically and exits through an orifice with a nozzle. The cold plasma thus generated has been shown to be capable of accelerating a healing process in flesh wounds on animal laboratory specimens.

A plasma coating device for treating a wound comprises a plasma chamber having: one or more electrodes, a gas supply inlet, a plasma outlet exposed to ambient pressure, and an ignition system operatively connected to the electrodes for providing a non-thermal equilibrium plasma within the plasma chamber. An aerosol delivery system is operable to introduce a bioresorbable material as an aerosol into the plasma, to produce a coating on the wound surface.

An apparatus or device for performing cold atmospheric plasma procedures. The device or apparatus has a housing, a chamber within the housing, an entry port to the chamber, a plurality of exit ports from the chamber, and a plurality of electrodes mounted in the housing, each of the plurality of electrodes having a distal end adjacent one of the plurality of exit ports. The entry port, chamber, exit ports and plurality of electrodes are configured to provide for an inert gas flowing in the entry port and through the chamber to the exit port to become plasmatized by electrical energy applied to the plurality of electrodes to form a cold plasma flowing from the exit ports.

Applications of dielectric barrier discharge (DBD) based atmospheric pressure plasma jets are often limited by the relatively small area of treatment due to their 1D configuration. This system generates 2D plasma jets permitting fast treatment of larger targets. DBD evolution starts with formation of transient anode glow, and continues with development of cathode-directed streamers. The anode glow can propagate as an ionization wave along the dielectric surface through and outside of the discharge gap. Plasma propagation is not limited to 1D geometry such as tubes, and can be organized in a form of a rectangular plasma jet, or other 2D or 3D shapes. Also described are a method for generating 2D plasma jets and use of the 2D plasma jets for cancer therapy.

Exemplary methods of and system for generating an antimicrobial wipe to clean and disinfect a surface contaminated with bacteria, viruses, spores, fungi, or combinations thereof. In some embodiments, the method includes applying non-thermal plasma to a moistened wipe to activate a liquid in the wipe. In some embodiments, the method includes applying non-thermal plasma to a liquid and then applying the activated liquid to a wipe. In one embodiment of a system for generating an antimicrobial wipe the system includes a housing having an opening; a supply of wipes disposed within the housing; a non-thermal plasma generator disposed within the housing; a power supply electrically coupled to the non-thermal plasma generator; and a feed system disposed within the housing, wherein the feed system moves one or more wipes from the supply of wipes past the plasma generator and out of the opening. As the feed system moves the wipes past the plasma generator, the plasma generator applies non-thermal plasma to the wipes.

An electrotechnical core for generating a cold atmospheric pressure or low-pressure plasma for the treatment of human, animal, or technical surfaces. The core has a side facing the surface and a side facing away from the surface and comprises the following layers, starting from the side facing the surface: a first insulation layer, a first electrode structure with a first contact between the first electrode structure and a power supply unit, a second insulation layer to galvanically isolate the first electrode structure and a second electrode structure from one another, wherein the second electrode structure is driven during operation by a voltage signal sufficient to ignite a plasma, a third insulation layer to galvanically isolate the second electrode structure from a third electrode structure, wherein the third electrode structure grounds the third electrode structure during operation.

The present application relates to a device for treating skin using non-thermal plasma. It comprises a housing having a skin interface electrode for application to skin during treatment, a generator for generating non-thermal plasma at the skin interface electrode; and an isolating element to isolate a region surrounding said skin interface electrode other than during treatment so that non-thermal plasma generated at the skin interface electrode within said region sterilises the skin interface electrode.

The present application relates to a cold plasma device (13) for treating a surface (6) with cold plasma. The device (13) has a cold plasma generator (14) adapted to generate cold plasma that produces reactive species for treating the surface (6). The device (13) also includes a treatment head (5) that is positionable relative to the surface (6) such that the reactive species are imparted toward the surface (6) during treatment. The device (13) is also provided with an air flow generator (8) to generate an air flow over the surface (6) and a controller (9) configured to control operation of the air flow generator (8) to generate an air flow over the surface (6) after the treatment has been completed such that remaining by-products of the cold plasma are dissipated.

A method for generating atmospheric pressure cold plasma inside a hand-held unit discharges cold plasma with simultaneously different rf wavelengths and their harmonics. The unit includes an rf tuning network that is powered by a low-voltage power supply connected to a series of high-voltage coils and capacitors. The rf energy signal is transferred to a primary containment chamber and dispersed through an electrode plate network of various sizes and thicknesses to create multiple frequencies. Helium gas is introduced into the first primary containment chamber, where electron separation is initiated. The energized gas flows into a secondary magnetic compression chamber, where a balanced frequency network grid with capacitance creates the final electron separation, which is inverted magnetically and exits through an orifice with a nozzle. The cold plasma thus generated has been shown to be capable of accelerating a healing process in flesh wounds on animal laboratory specimens.

An array of non-thermal plasma emitters is controlled to emit plasma based on application of an electric current at desired frequencies and a controlled power level. A power supply for an array controller includes a transformer that operates at the resonant frequency of the combined capacitance of the array and the cable connecting the array to the power supply. The power into the array is monitored by the controller and can be adjusted by the user. The controller monitors reflected power characteristics, such as harmonics of the alternating current, to determine initiation voltage of the plasma and/or resonant frequency plasma emitters. The array of non-thermal plasma emitters may be used in therapeutic, diagnostic, and/or medical sanitization applications, such as to prevent, limit, and/or treat the development of diseases caused in humans by infectious agents.