Experimental group:Intracranial drug balloon dilatation catheter

Prospective, multicenter, single-group, target-value clinical trial to evaluate the safety and efficacy of intracranial drug balloon dilatation catheter for endovascular treatment in patients with symptomatic intracranial atherosclerotic stenosis

A prospective, multicenter, randomized controlled clinical trial to evaluate the efficacy and safety of intracranial drug balloon dilatation catheter in the treatment of symptomatic intracranial atherosclerotic stenosis.