home | MultiStim VARIO | Insulated Needles Percutaneous Electrode Guidance (P.E.G.) Shown at left: MultiStim VARIO with switchbox. Stimulating current from MultiStim VARIO can be toggled to output at either the Percutaneous BIPOLAR electrode or the cannula by employing the switch. MultiStim VARIO automatically sets the output current range (0 - 6 mA for cannula and 0 - 60 mA for PEG ) according to the switch position. In conventional plexus block with cannula, the puncture location is determined via the anatomical map. With MultiStim VARIO c/w switchbox, there exists the option of locating the nerve first with the PEG electrode. Following this method, a nerve is located by stimulating percutaneously, eliciting a reflex in the patient. At this point the cannula is inserted in the required location, the switchbox is toggled to transfer stimulation to the cannula, and the cannula is now placed as per conventional technique. For Percutaneous Electrode Guidance with a monopolar electrode please see MultiStim SENSOR. O r d e r   I n f o r m a t i o n : Switchbox for MultiStim Vario Catalogue 1151-94-15 Percutaneous Bipolar Electrode/Handle Catalogue 1151-94-16