Abstract: A liquid treatment apparatus includes a water pump and a plasma jet generating device. A liquid inlet of the water pump is immersed in a liquid. A liquid outlet of the water pump is configured to eject the liquid from the liquid inlet out of the water pump without artificial bubbles in the liquid. A gas inlet of the plasma jet generating device is configured to be located out of the liquid. A pair of electrodes of the plasma jet generating device is configured to generate plasma jet by the gas from the gas inlet. The plasma jet outlet is configured to be immersed in the liquid and in proximity to the liquid outlet of the water pump so that the gas is automatically entrained into the gas inlet of the plasma jet generating device when the liquid is ejected out from the liquid outlet.

Abstract: A liquid treatment apparatus includes a water pump and a plasma jet generating device. A liquid inlet of the water pump is immersed in a liquid. A liquid outlet of the water pump is configured to eject the liquid from the liquid inlet out of the water pump without artificial bubbles in the liquid. A gas inlet of the plasma jet generating device is configured to be located out of the liquid. A pair of electrodes of the plasma jet generating device is configured to generate plasma jet by the gas from the gas inlet. The plasma jet outlet is configured to be immersed in the liquid and in proximity to the liquid outlet of the water pump so that the gas is automatically entrained into the gas inlet of the plasma jet generating device when the liquid is ejected out from the liquid outlet.

Abstract: An atmospheric-pressure plasma jet generating device is disclosed, which comprises a housing, a discharge tube, an air inlet, and an outlet. The air inlet is connected to the outlet and the discharge tube. The discharge tube includes an internal electrode, a first dielectric material, and an external electrode. The first dielectric material is placed between the external electrode and the internal electrode, and there are some channels between internal electrode and first dielectric tube. An external power source is electrically connected to the internal electrode and the external electrode to generate a high electric field within the discharge tube. When the working gas flows through the discharge tube from the air inlet, the plasma is generated by the high electric field, and then flows out through the outlet. The present invention can generate non-thermal atmospheric-pressure plasma jet for biomedical processing.