CHARGE STEERING HIGH DENSITY ELECTRODE ARRAY FOR DEEP BRAIN STIMULATION

Deep brain stimulation (DBS) has therapeutic benefits for neurological disorders, such as Parkinson’s disease, tremors, chronic pain, and dystonia. Existing DBS solutions utilize four-channel electrodes that only allow spherical charge distributions. This lack of targeting capability results in placement errors, with three to five insertions typically required for correct placement.

A new electrode array with enhanced circuitry enhances targeting and improves stimulation by enabling successful stimulation in spite of placement errors. The array uses a silicon backbone and seven wires for full control over an unlimited number of electrode contacts. The stimulation parameters can be controlled based on the neuroanatomical target by switching between contacts, facilitating effective DBS on the first insertion of the array into the brain. The high number of small contacts on the surface also allows nuanced control over the amount of tissue being excited.