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一、自口外经眶下孔及眶下管注射眶下神经法眶下孔在干标本距眶下缘平均为0.8厘米,孔周有浅凹,孔口开向下内。在成人闭眼时,此孔之位置与下眼睑之距离约为3.5厘米,距鼻中线约为3厘米。孔之表面虽有皮、脂肪及肌肉附着,用指扪之仍可精确的探知孔周围之凹的位置。眶下管在干标本上直径为3毫米。管壁有时微向眶腔凸起,管内很少有严重的骨性阻碍,只在少数病例中管较曲。笔者发现这些解剖特点之后,进一步利用它们自口外经眶下孔注射眶下神经得到满意效果。在绝大部份病例中注射得到了成功。
First, from the mouth of the fossa infraorbital foramen and infraorbital tube injection of infraorbital nerve infraorbital foramen near the infraorbital margin of the specimen from the average of 0.8 cm, peritubular dimple, opening down to the inside. In adult eyes closed, the location of this hole and the distance between the lower eyelid is about 3.5 cm, about 3 cm from the median nasal line. Although the surface of the hole skin, fat and muscle attachment, with the finger can still accurately pinch the hole around the location of the concave. Infraorbital tube in the dry specimen diameter of 3 mm. Sometimes the wall of the tube to the orbital bulge, there are few serious bony obstruction in the tube, only in a few cases of more music. After I found these anatomical features, they were further used to obtain satisfactory results by injecting the infraorbital nerve from the mouth of the infraorbital foramen. In most cases the injection has been successful.