Patent ID: 7877152

Claim:
A bipolar stimulator probe comprising an active stimulator electrode with a first skin contact surface, a second electrode with a second skin contact surface, serving as a reference electrode to said active stimulator electrode, and a user handle provided as part of a single tool, wherein the probe tool comprises a spaced electrode mounting structure fixing the positions of the electrodes with respect to each other during skin contact, and during movement of the probe from one skin contacting position to another, and providing for guided adjustment of the fixed relative positions of the electrodes within a given range, wherein the spaced electrode mounting structure comprises a pair of spaced arm portions, said first and second skin contact surfaces being presented at free ends of said arm portions, and having at least central portions thereof situated proximally within a common plane and facing from said free ends in respective directions which are unopposed to each other, said guided adjustment of the fixed relative positions of the electrodes being proximally within said common plane.