A device, when connected with a power source and a carrier-gas supply, for generating and delivering a plasma flame to a site, the device comprising: a housing member configured to provide for gas passage, the housing member having a tip member with a tip opening at its distal end, a shaft member at its middle section, and a tubing connection member at its proximate end; a plurality of electric lines housed in the shaft member and connectable to the power source via the tubing connection member; and a plurality of electrodes including a grounded electrode and at least one high voltage electrode, the plurality of electrodes being contained in the tip member and being attachable to the plurality of electric lines; wherein when the device is connected to the power source and the carrier-gas supply, the carrier-gas flows from the carrier-gas supply, via the tubing connection member and the shaft member, to the tip member and is excited by the plurality of electrodes to generate the plasma flame at the tip opening; and wherein the tip member further comprises: a tip shell in a hollow conical shape forming a tip chamber having a narrow distal end and a wide base end, wherein the tip opening is at the narrow distal end; and a tip insert fitted at the base end, wherein the tip insert further comprises a first carrier-gas opening for passage of carrier-gas, and a plurality of electrode slots for attaching the electrodes and connecting the electrodes to their respective electric lines. a housing member configured to provide for gas passage, the housing member having a tip member with a tip opening at its distal end, a shaft member at its middle section, and a tubing connection member at its proximate end; a plurality of electric lines housed in the shaft member and connectable to the power source via the tubing connection member; and a plurality of electrodes including a grounded electrode and at least one high voltage electrode, the plurality of electrodes being contained in the tip member and being attachable to the plurality of electric lines; wherein when the device is connected to the power source and the carrier-gas supply, the carrier-gas flows from the carrier-gas supply, via the tubing connection member and the shaft member, to the tip member and is excited by the plurality of electrodes to generate the plasma flame at the tip opening; and wherein the tip member further comprises: a tip shell in a hollow conical shape forming a tip chamber having a narrow distal end and a wide base end, wherein the tip opening is at the narrow distal end; and a tip insert fitted at the base end, wherein the tip insert further comprises a first carrier-gas opening for passage of carrier-gas, and a plurality of electrode slots for attaching the electrodes and connecting the electrodes to their respective electric lines. a tip shell in a hollow conical shape forming a tip chamber having a narrow distal end and a wide base end, wherein the tip opening is at the narrow distal end; and a tip insert fitted at the base end, wherein the tip insert further comprises a first carrier-gas opening for passage of carrier-gas, and a plurality of electrode slots for attaching the electrodes and connecting the electrodes to their respective electric lines.