The utility model relates to the technical field of medical devices, in particular to a new type of biliary lithotripsy basket, which comprises a basket sheath, a guide wire, a basket, a handle, a casing, a casing, a balloon, a balloon, a pressurizing tube and a pressurizing tube; a sleeve set is arranged outside the basket sheath, and a cavity is formed between the sheath and the basket sheath; a sleeve set is arranged outside the casing and is connected with the sleeve one. There is a ring-shaped bottom cavity at the bottom of the basket sheath, and a ring-shaped notch at the bottom of the bottom cavity. In the bottom cavity, there is a balloon which is contracted and sleeved on the outside of the basket sheath. The balloon is fixed on the bottom end of the cavity and connected with the cavity. The balloon is fixed on the outer wall of the lower end of the casing, and the sleeve between the balloon 2 and the cavity 2. A plurality of through holes are arranged on the wall of the tube; the pressure tube is connected with the cavity, and the pressure tube is connected with the cavity. The utility model has the advantages of scientific and reasonable structure, convenient operation, high stone removal rate and no damage to the bile duct wall.
【技术实现步骤摘要】
一种新型胆道取石网篮
本技术涉及医疗器械
,具体涉及一种新型胆道取石网篮。
技术介绍
胆管结石是常见病、多发病,目前主要微创治疗手段:内镜下乳头括约肌切开术(endoscopicsphincterotomyEST)、内镜下十二指肠乳头气囊扩张术(endoscopicpapillaryballoondilationEPBD),其主要操作过程中,先以球囊扩张乳头肌后,再用取石网篮取胆总管结石,在操作过程中要分两步,首先球囊扩张乳头肌,然后退出球囊,再沿导丝植入取石网篮取石,期间存在一定问题:1)乳头肌扩张后,在短时间会出现弹性回缩,不利于胆总管结石取出,2)在交换网篮过程中,增加手术时间,同时要增加手术操作医师及患者额外射线量。针对上述问题,在现有技术中,采用将球囊与网篮设置在一起,最前端为取石网篮,取石网篮后端连接球囊,球囊在此的作用是保持乳头肌在手术中一直处于扩张状态,以便于沿导丝植入取石网篮取石;但是在操作过程中发现,球囊把乳头肌扩张后,把取石网篮伸入胆管取石过程中,由于患者存在结石的胆管部位往往都存在炎症,使得胆管胆道变狭窄,使得取石网篮难以伸入胆管取掉 ...
【技术保护点】
1.一种新型胆道取石网篮,包括网篮管鞘、设置在网篮管鞘内并可在网篮管鞘内移动的导丝、设置在导丝底部的网篮、设置在导丝顶部的手柄;其特征在于,还包括套管一、套管二、球囊一、球囊二、加压管一、加压管二;所述套管一套设在网篮管鞘外侧,并与网篮管鞘之间形成一个上端封闭,下端开口的腔体一;所述套管二套设在套管一外侧,并与套管一之间形成一个两端封闭的腔体二;在网篮管鞘底部的外侧设有一个环形的底腔,所述底腔下端设有一个环形缺口,在底腔内设有一个呈收缩状态并套在网篮管鞘外侧的球囊一,所述球囊一固定在腔体一底端并与腔体一连通;所述球囊二固定在套管二下端的外壁上,球囊二与腔体二之间的套管二管壁 ...
【技术特征摘要】
1.一种新型胆道取石网篮,包括网篮管鞘、设置在网篮管鞘内并可在网篮管鞘内移动的导丝、设置在导丝底部的网篮、设置在导丝顶部的手柄;其特征在于,还包括套管一、套管二、球囊一、球囊二、加压管一、加压管二;所述套管一套设在网篮管鞘外侧,并与网篮管鞘之间形成一个上端封闭,下端开口的腔体一;所述套管二套设在套管一外侧,并与套管一之间形成一个两端封闭的腔体二;在网篮管鞘底部的外侧设有一个环形的底腔,所述底腔下端设有一个环形缺口,在底腔内设有一个呈收缩状态并套在...
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