More than a year ago, 80-year old Helen Douglass described her shoulder and forearm pain following a stroke as nine out of 10. Last summer the Cleveland-area resident participated in a clinical trial for SPRINT, a small wearable stimulator patch and has no pain now. Her story is one of many SPR Therapeutics points to and the Ohio company is now marketing the FDA approved portable device that delivers neuro-stimulation to the nerve causing the pain. CEO Maria Bennett says SPRINT is somewhere