dbentley – I had the pain stimulator put in about 3 years ago, one that St Judes uses, true it rumbled my body badly, did no good, and would continue to rumble even after shut off. Had it taken out last year. True there may be a newer model, but I am reluctant to have a 6th surgery with 38 staples again. Nothing seems to work for me. hank you – you have an updated one that seems to work better, but one can only withstand so many surgeries…..