To Evaluate the Safety of DBS in Patients With Primary Parkinson's Disease

Inclusion Criteria:1. Aged 18-70 years old, patients with primary Parkinson's disease;2. The duration of Parkinson's disease is 5 years or more;3. The stage of Hoehn-Yahr in the "off" (without medication) state is 2 or more stages;4. UPDRS motion score ≥30 in "Off" state;5. Good response to dopamine drugs, acute levodopa experiment UPDRS exercise score improvement rate of more than 30% (experimental drug Medoba 250mg);6. The daily drug shutdown period is at least 6 hours, or there are sports complications such as serious transactions, and repeated adjustments of drugs still cannot be effectively improved;7. MMSE score ≥24 points on the simple intelligent mental state Examination Scale;8. Have the ability of independent external charging operation;9. Patients or their family members can fully understand the treatment and sign informed consent;10. The patient had good compliance and was able to meet the requirements of postoperative follow-up. Exclusion Criteria:1. Have received surgical treatment for Parkinson's disease other than deep brain stimulation, such as stereotactic destruction, cell transplantation, gamma knife, etc.;2. The "off" state has serious language disorders, dysphagia, balance disorders and other midline symptoms;3. There are contraindications for neurosurgery, such as cerebral infarction, hydrocephalus, cerebral atrophy, ventricle enlargement, cerebrovascular sequelae, heart disease, severe thrombocytopenia and other cardiovascular and cerebrovascular dise…