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。