Device for cold plasma treatment, cold plasma endoscopic system

A device for cold plasma treatment, the device comprising:

• a cold plasma generating system comprising:
• a gas source,
• an electrical source, and
• a cold plasma chamber comprising:
• a dielectric chamber fluidly connected to the gas source,
• a first electrode surrounding at least partially the dielectric chamber and electrically connected to the the electrical source;
• a catheter having a proximal end and a distal end, the catheter comprising a first lumen for carrying the cold plasma, the first lumen being fluidly connected to the dielectric chamber at the proximal end and having an opening at the distal end for delivering the cold plasma;
• and
• an electrical conductor extending inside the first lumen substantially from the dielectric chamber to the distal end,
• wherein the electrical source is configured to apply a pulsed excitation signal to the first electrode, and
• wherein the device comprises a remotely actuated deployable confinement system configured to create a confined space, wherein the opening of the first lumen is arranged in the confined space, wherein the deployable confinement system is configured to confine the plasma substantially within the confined space.