A plasma generation device including an electric power supply device to supply electric power to multiple electrodes arranged in a reaction chamber; a processing gas supply device to supply a processing gas to the reaction chamber; and a control device to control operation of the electric power supply device and the processing gas supply device in either of a first operation mode in which, when a stop signal is received while electric power is being supplied to the electrodes in a state with the processing gas being supplied to the reaction chamber, supply of electric power to the electrodes is stopped and supply of the processing gas to the reaction chamber is stopped, and a second operation mode in which supply of electric power to the electrodes is stopped, but the processing gas continues to be supplied to the reaction chamber.

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

Plasma generating apparatus includes a pair of electrodes configured to generate plasma by discharge, a first supply path configured to supply processing gas along an outer periphery of each of the pair of electrodes, a second supply path configured to supply processing gas between the pair of electrodes, and a suction path configured to suck the processing gas supplied along an outer peripheral surface of each of the pair of electrodes via the first supply path.

A sterilization system having a controllable non-ironing microwave radiation source for providing microwave energy for combining with a gas to produce atmospheric low temperature plasma for sterilizing biological tissue surfaces or the like. A plasma generating region may be contained in a hand held plasma applicator. The system may include an impedance adjustor e.g. integrated in the plasma applicator arranged to set a plasma strike condition and plasma sustain condition. The gas and microwave energy may be transported to a plasma generating region along an integrated cable assembly. The integrated cable assembly may provide a two way gas flow arrangement to permit residual gas to be removed from the surface. Invasive surface plasma treatment is therefore possible. The plasma applicator may have multiple plasma emitters to produce a line or blanket of plasma.

In an array of a plurality of plasma generator modules for generating a physical plasma by dielectric barrier discharges at atmospheric pressure, each of the plasma generator modules comprises two parallel electrodes linearly extending at a lateral distance, one of which having a dielectric barrier; connection devices for connecting the electrodes to a high voltage source; two flat gas-conducting elements conducting a working gas between the electrodes; and a module housing delimiting the respective plasma generator module laterally along the electrodes and transversely to the electrodes. The module housings are fixed to one another or to a common module frame by means of fixation devices. The module housings are arranged side by side both in a first direction along and in a second direction transverse to the electrodes, and in such an offset way that the electrodes of the plasma generator modules partially overlap in the direction along the electrodes.

A sterilization system having a controllable non-ionizing microwave radiation source for providing microwave energy for combining with a gas to produce atmospheric low temperature plasma for sterilizing biological tissue surfaces or the like. A plasma generating region may be contained in a hand held plasma applicator. The system may include an impedance adjustor e.g. integrated in the plasma applicator arranged to set a plasma strike condition and plasma sustain condition. The gas and microwave energy may be transported to a plasma generating region along an integrated cable assembly. The Integrated cable assembly may provide a two way gas flow arrangement to permit residual gas to be removed from the surface. Invasive surface plasma treatment is therefore possible. The plasma applicator may have multiple plasma emitters to produce a line or blanket of plasma.

The present invention relates to a hollow cathode plasma source and to methods for surface treating or coating using such a plasma source, comprising first and second electrodes (1, 2), each electrode comprising an elongated cavity (4), wherein dimensions for at least one of the following parameters is selected so as to ensure high electron density and/or low amount of sputtering of plasma source cavity surfaces, those parameters being cavity cross section shape, cavity cross section area cavity distance (11), and outlet nozzle width (12).

A device for producing a non-thermal atmospheric pressure plasma and an active space including such a device are disclosed. In an embodiment a device includes a first housing, in which a piezoelectric transformer is arranged and a second housing, in which a control circuit is arranged, the control circuit configured to apply an input voltage to the piezoelectric transformer, wherein the first housing comprises a coating configured to eradicate irritant gases.

A liquid treatment apparatus includes a flow channel, first and second electrodes at least part of each of which is disposed within the flow channel, an insulator, a gas supply device, and a power supply source that applies a voltage between the first and second electrodes and generates plasma. The insulator has a tubular shape and an opening on an end surface of the insulator, and surrounds a lateral surface of the first electrode with a space interposed between the insulator and the first electrode. The gas supply device supplies and ejects a gas into the liquid via the opening. At least part of the flow channel extends in a first direction which is inclined with respect to a horizontal direction so that the liquid flows obliquely upward with respect to the horizontal direction. The opening is positioned within the at least part of the flow channel.

The invention relates to a flat flexible coating arrangement comprising a coating surface (9) for placing on a body region of a living being and at least one electrode (3, 3) arranged above the coating surface (9), and a dielectric (1) containing the at least one electrode (3, 3), the at least one electrode (3, 3) comprising a supply line for an AC high voltage in order to form a dielectrically impeded plasma. Said arrangement enables fusion processes over the course of the plasma treatment and optionally wound healing without removing the coating arrangement from the body region by means of at least one built-in sensor (14) for determining at least one parameter of the body region.