Can patients control the DBS device themselves?

Following surgery, the patient is given the a patient programmer, a hand-held battery-operated unit that can be used to determine if the device is on or off, to turn it on or off, to check battery life, and to change some settings on the stimulation level. The degree of patient control over the stimulation is determined by the programming neurologist. Normally, in DBS for Parkinson's disease, the device is left on all the time.