MobiPlas

The MobiPlas is an innovative portable plasma device designed for medical applications, developed by the Leibniz Institute for Plasma Science and Technology in Greifswald, Germany. This atmospheric pressure plasma jet (APPJ) utilizes argon as its working gas and features an integrated gas supply system with a refillable steel gas tank, allowing for approximately 10 minutes of continuous operation on a single gas filling. The power supply is powered by a mobile powerbank and is controlled by a Raspberry Pi Pico, which also generates the high-voltage clock signal necessary for operation.

Key performance parameters of the MobiPlas have been thoroughly analyzed, including ozone concentration, temperature evolution at the treatment site, and patient leakage current (PLC). Notably, ozone levels remain below the European Union threshold at distances greater than 20 cm, and the temperature stabilizes around 40°C at the jet's effluent tip. The maximum PLC recorded was 11 µA, significantly under the limits set by the IEC 60601-1 standard, although some instability in PLC was observed. The MobiPlas offers a promising form factor for further development and characterization, positioning itself as a potential candidate for approval and commercialization in the field of plasma medicine.