A plasma surgical device for reducing bleeding in live tissue by means of a gas plasma. The device comprises a plasma-generating system having an anode ( 1 ), a cathode ( 8 ) and a gas supply channel ( 17 ) for supplying gas to the plasma-generating system, the plasma-generating system comprising at least one electrode ( 3, 5 ), which is arranged between said cathode ( 8 ) said anode ( 1 ), and the plasma-generating system being enclosed by a housing ( 12 ) of an electrically conductive material, which is connected to the anode ( 1 ). The device is characterised in that said housing ( 12 ) forms said gas supply channel ( 17 ).
