Neurointerventional treatment for cerebral infarction is the most cutting-edge and effective treatment modality available. Through femoral artery puncture, guidewires and catheters are placed in the diseased vessel, and vascular recanalization is achieved through medications as well as adjunctive treatments such as stents. It is generally divided into two aspects: 1. Treatment in the acute phase. When sudden occlusion of large intracranial and external arteries occurs, therapeutic measures such as arterial thrombolysis, stent retrieval, and balloon dilation can be given, and revascularization can be achieved in about 80%-90% of patients. Most patients need to be treated under general anesthesia, and the economic cost ranges from 50,000 to 100,000 RMB. 2. Treatment in the stable stage. When there is a combination of severe stenosis of intracranial and external arteries, endovascular stent implantation needs to be given, including subclavian artery, internal carotid artery, middle cerebral artery, vertebral artery, basilar artery, etc. Extracranial artery stenosis is usually performed under local anesthesia, and intracranial artery stent implantation needs to be performed under general anesthesia, and the cost of treatment ranges from 30,000-100,000 RMB. In addition, with neurointerventional procedures, there are corresponding procedural complications in 1%-3% of patients.