摘要
外眦韧带结节下缘,眶外侧壁角与眼球之间,从眶缘至眶上裂前端35mm的间隙,称球后麻醉新入路.以人体新鲜标本从新、老入路各插入针头、CT扫描查与眼球及睫状神经节的距离,老人路后段距眼球太近,易损伤;距睫状神经节太远,麻醉效果差.球周麻醉称打孔性麻醉,麻醉不到睫状神经节,靠大量麻药包围眼球,致视细胞坏死.新入路有眶壁可依,很安全,距睫状神经节9～18mm,2ml麻药足可浸润睫状神经节及节前节后纤维.
Between the lower rim of external canthalligament, the external orbit wall and the eyeball, from the orbit margin to the front end of the superior orbital fissure, there is a 35mm deep passageway, which is called the new pathway of retrobulbar anesthesia. Syringe needles were inserted through both the new and old pathways on fresh speciment of human body, and CT tests were made to scan these two pathway layer by layer . The needle through the old pathway is too near to the optic nerve and the eyeball, so it is likely to cause injure, and the distance from needle to the ciliary ganglion is so far (>20mm), that it is difficult to accomplish anesthesia. While the needle through the new pathway makes a most proper distance both to the optic nerve and to the eyeball, and backing by the orbit wall, the needle is safe to be inserted. There is a distance of 9~ 18mm to the ciliary ganglion. When anesthetic is injected, the ciliary ganglion and its ant and post fibrins are all infilratel.
出处
《眼外伤职业眼病杂志》
北大核心
1995年第1期20-22,共3页
Journal of Injuries and Occupational Diseases of the Eye with Ophthalmic Surgeries
