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.

A plasma generating device utilizes a cold plasma to contain and direct a stream of electrons with a hand held nozzle to enhance healing of wounds and skin surface abnormalities, and to kill pathogens on skin surfaces in humans and animals wounds, abnormalities and pathogens.

Electrosurgical apparatuses having bent tip applicators are provided. In one implementation, an electrosurgical apparatus includes an insulating outer tube having a longitudinal axis, a proximal end, and a distal end. An outer tube distal housing has its proximal end coupled to the distal end of the insulating outer tube. A distal end of the outer tube distal housing extends from the insulating outer tube at an acute angle relative to the longitudinal axis. The exemplary electrosurgical apparatus further includes an electrically conducting tube disposed within the insulating outer tube and moveable along the longitudinal axis of the insulating outer tube. An electrode is coupled to a distal end of the electrically conducting tube. The exemplary electrosurgical apparatus may include a knob coupled to the insulating outer tube to effect rotation of the outer tube distal housing in 360 degrees of rotation.

The invention relates to an electrode arrangement for generating a non-thermal plasma, with: a first electrode and a second electrode, wherein the first electrode and the second electrode are electrically insulated from each other and spaced from each other by a dielectric element, characterized in that the second electrode has an Electroless Nickel Immersion Gold (ENIG) coating, or an Electroless Nickel Electroless Palladium Immersion Gold (ENEPIG) coating, or an Electroless Nickel Immersion Palladium Immersion Gold (ENIPIG) coating, or an Electroless Palladium (EP) coating, or an Electroless Palladium Immersion Gold (EPIG) coating, and/or the dielectric element is made of a woven glass reinforced hydrocarbon ceramic.

A ballast water treatment apparatus including a ballast water transport line configured to transport a ballast water main stream, a plasma generation device configured to generate an activated gas from a feed gas; and a mixing device. The plasma generation device includes a feed gas inlet for a feed gas, a first electrode and a second electrode, for activating the feed gas by an electric discharge between the first electrode and the second electrode thereby generating the activated gas, a cooling fluid passage for cooling the plasma generation device, the cooling fluid passage having a cooling fluid inlet and a cooling fluid outlet, the cooling fluid passage being fed with a cooling fluid, and a combining section being configured to combine the activated gas with the cooling fluid from the cooling fluid outlet to generate an activated fluid product. The mixing device is configured to mix the activated fluid product and the ballast water main stream.

A plasma treatment device (1), designed for treating a surface with a dielectrically impeded plasma, comprising an electrode arrangement (5) which has at least one electrode (3), and comprising dielectric (7) which completely covers the electrode (3) in relation to the surface to be treated, and comprising a housing (9) which contains a line arrangement (11) which comprises at least one high-voltage supply line (10, 10a, 10b), wherein the electrode (3) is connected to the line arrangement (11) and can be acted on by a high-voltage signal (13a, 13b), which can be applied to the high-voltage supply line (10, 10a, 10b), via the high-voltage supply line (10, 10a, 10b), allows, in a simple manner, the combination of an effective plasma treatment with an effective mechanical treatment of the surface to be treated by way of the plasma treatment device (1) having a brush head (15) which has a bristle area (17) and a bristle support (19) with a base surface (21), wherein the bristle area (17) has a large number of flexible bristles (23) and interspaces between the bristles (23), and the bristles (23) protrude from the base surface (21) of the bristle support (19) in a direction of an abutment surface (27) which is defined by those ends of the longest bristles (23) of the bristle area (17) that are averted from the base surface (21), wherein the bristle area (17) has a first length which is defined by the distance between the base surface (21) and the abutment surface (27), and wherein the at least one electrode (3) of the electrode arrangement (5), starting from the base surface (21), extends with a second length, which is smaller than the first length or equal to the first length and is at least 30% of the first length, into the bristle area (17) in the direction of the abutment surface (27).

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 piezoelectric transformer is configured to ionize a process medium, and wherein the device is configured to provide a circulating air operation so that the process medium is guided from the piezoelectric transformer through a catalytic converter and then back to the piezoelectric transformer and generate a non-thermal atmospheric pressure plasma.

The invention relates to a plasma device (1) for treating body surfaces, comprising a main body (3) that can be held in the hand, on which a plasma source (5) is arranged, which is designed for generating a non-thermal plasma, and comprising a spacer which is designed to define, when installed, a distance between the plasma source (5) and a body surface to be treated, wherein the spacer (7) can be detachably connected to the main body (3) and/or to the plasma source (5), and wherein the plasma source (5) can be detachably connected to the main body (3).

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.

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.