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泪道阻塞是眼科常见病。作者自1957年起用特制套管针作泪道穿线治疗泪道阻塞,操作较易,疗效尚好,简介如下: 器械:(一)用7号或B-D20号腰穿针,将针尖端段连针栓一起截短,长6-7 cm,复将断端连针栓磨作钝锥形(针栓要略长于套管),宛似泪道探针,名泪道穿线导针。(二)选用长约30cm的细铜丝,其粗细以其二股能通过导针针管为宜。(三)白色丝线二股对叠能通过导针针管者即可,长约40cm,事先浸入石腊油中备用。(四)额镜、鼻镜及鼻镊子等。操作步骤:泪点以1%地卡因表面麻醉,再以2%奴佛卡因1.5-2 cc作鼻睫神经及泪囊处局麻。下鼻道内填以1%麻黄素及1%地卡因的混合棉片以收缩下鼻甲及鼻粘膜表面
Lacrimal obstruction is a common eye disease. The author since 1957 with a special trocar for lacrimal passage threading lacrimal duct obstruction, the operation easier, the effect is still good, as follows: Instruments: (A) with No. 7 or B-D20 lumbar puncture, the needle tip segment The trocar together with truncation, length 6-7 cm, the complex end of the needle and bolt for blunt cone (needle to slightly longer than the sleeve), Wan like lacrimal probe, name lacrimal thread threading needle. (B) the use of about 30cm long thin copper wire, the thickness of its two lead through the needle is appropriate. (C) two white silk stack can be passed through the needle-guide tube who can be about 40cm, prior immersion in paraffin oil spare. (Four) forehead, nose and nose forceps and so on. Steps: 1% dexamethasone anesthesia surface, then 2% novocaine 1.5-2 cc for nasal ciliary nerve and lacrimal sac at the local anesthesia. The lower nasal cavity filled with 1% ephedrine and 1% dexamethasine mixed cotton to shrink the inferior turbinate and nasal mucosal surface