Increasing patient pool suffering from Parkinson’s disease and multiple sclerosis to drive global deep brain stimulation (DBS) devices market According to TechSci Research report, Global  Deep Brain Stimulation (DBS) Devices Market By Product Type (Single-channel Deep Brain Stimulator, Dual-channel Deep Brain Stimulator), By Type (Rechargeable, Non-Rechargeable), By Application (Obsessive Compulsive Disorder, Parkinson’s Disease, Essential Tremor, Epilepsy,