Make model by ligating bilateral common carotid arteries,apply Naotong Dibi Liquid to the observation groups by dripping nose,Weinao Lutong to control by abdominal injection.

• 采用结扎双侧颈总动脉法造模,各观察组用脑通滴鼻液滴鼻,对照组用维脑路通腹腔注射。