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涎腺造影方法按其传统习惯均采用注射针头,将其弯成一定的角度,针头需磨平钝,边缘圆滑,由于针头长度有限,质硬,因而插入腮腺导管内深度亦受限制(一般可插2～3cm),在注射碘油时,由于碘油注入较困难,用力稍不当,针头即有滑脱之可能,或造成刺痛。注射完毕拔出针头后,一部分碘油也随之溢出,虽用纱卷或棉签压迫腮腺导管口,但溢出之碘油总是影响X线片的质量,且注射时病人体位也不舒适。为此,作者采用麻醉科废弃的硬膜外导管作腮
Salivary gland angiography methods according to their traditional habits are used injection needle, bend it into a certain angle, the needle needs to be blunt, smooth edges, the needle length is limited, hard, and thus inserted into the parotid duct depth is also limited (generally available Plug 2 ~ 3cm), in the injection of iodized oil, due to iodine injection is more difficult, slightly harder force, the needle that there may be spondylolisthesis, or cause stinging. After injection needle is pulled out, part of the lipiodol also overflow, although the use of gauze or cotton swab pressure parotid duct mouth, but the overflow of iodine oil always affect the quality of X-ray films, and injection of the patient's position is not comfortable. To this end, the author used anesthesia abandoned epidural catheter as a gills