Needle electrode for use with hypodermic syringe attachment

Claim 1

A needle electrode, for use with a hypodermic syringe, the electrode comprising: a hollow straight needle of electrically conductive material with an axis and a tip end and a rear end, a conductor wire connected fixedly to the needle and extending radially outwardly and rearwardly therefrom, insulating material formed around the grip portion of the handle and the conductor wire to provide a firm solid handle, said grip portion sufficiently long for an operator's thumb and first two index fingers of one hand to grasp comfortably the handle like a writing instrument, said grip portion arranged to maintain the operator in electrical isolation from the needle, the handle provided with an external configuration that is ogival in shape from a rounded nose situated toward the tip end to a divergent rear adapted to receive the syringe in fluid flow communication with the needle, the handle provided with electrical engagement means for connecting a source of electricity to the conductor wire, the electrical engagement means comprising a smoothly contoured insulating body having a cylindrically concave inwardly facing surface rearward of said grip portion of the needle and adapted in use to be configured with the syringe in a smooth convex profile which is a continuation of the ogival configuration of the handle.