Contraindications. The Spinal Cord Stimulator units will not be for patients that are not able to function the system, have unsuccessful demo stimulation by failing to obtain helpful pain relief, are inadequate surgical risks, or are Expecting. Warnings. Patients implanted with Boston Scientific Spinal Wire Stimulator Techniques without ImageReady™ MRI https://sgvasculargrp.com/medical-condition/varicose-spider-veins/painmanagement-thumb/