The utility model discloses a kind of intrahepatic vascular puncture clamp clamp, which is divided into two parts of the forearm and the rear arm, each of the left and right rear arms is provided with a ring sleeve and a clip rack, the ring sleeve is installed on the rear arm, a hollow passage is arranged in the left and right forearms, and the rear end of the left and right forearms is provided with an installation hole to connect with the channel, There is a side hole in the front side of the left forearm. The side hole is connected with the channel in the left forearm. The front end of the left forearm is provided with a tip. A channel is arranged in the tip of the right forearm. A hole is provided on the side of the right forearm. The channel in the tip is connected with the channel and the outlet in the right forearm. The inside of the left and right forearm front ends are not damaged separately. The wound clamp teeth and grooves are mutually meshed with the grooves and the grooves without damage. The forearm is closed to synthesize a circular frustum with a small diameter at the front end and a slightly larger diameter at the rear end, which is convenient for puncturing. The utility model has a reasonable structure, a novel design, and a variety of functions such as blood vessel puncture and blocking in the liver. The application of the utility model has greatly optimized the surgical procedure of dissection of the hepatic segment. One
【技术实现步骤摘要】
一种肝内血管穿刺阻断钳
本技术属于解剖性肝段切除工具的
,具体为一种肝内血管穿刺阻断钳及其使用方法。
技术介绍
解剖性肝段切除术是行肝癌根治性切除的标准术式。因为肝癌在较小的时候即多伴有门静脉浸润或向肝内转移,从根治的角度要求对荷瘤肝段进行解剖性切除;另一方面,多数病例因合并慢性肝炎和肝硬化,从肝功能的角度考虑,不适宜作肝叶或半肝之类的大范围切除,考虑到对肿瘤进行根治的同时还要保留肝功能,权衡利弊后确立了此种术式;近年肝脏切除技术的进步主要是基于解剖性肝段切除及术中减少失血方法的进展而获得的。术中超声引导下门静脉穿刺注射显色剂确定肝段范围是实施肝段切除的“金标准”方法。理论是依据每一待切除肝段是由单独一支或几支门静脉和肝动脉供血,术中超声定位引导下用穿刺针穿刺肝蒂血管,注入几毫升的美兰,肝段表面呈一大着色区,显示出肝断面的界线,在第一肝门处行入肝血流阻断后离断肝实质,结扎血管和胆管从而达到解剖性切除的目的。成功实施这项技术的关键点是术中超声识别肝段肝蒂血管后,进行精确的穿刺、染色及肝段入肝血流的有效控制。如上所述,目前的解剖性肝段切除多是在超声引导下定位肝段的肝蒂血管注射美兰使肝脏表面显色后进行切除,而肝段的入肝血流往往得不到有效的控制,导致在离断肝实质过程中美兰颜色消退从而无法正确界定待切除肝段与正常肝段之间的分界线,因而难以做到肝段的精准切除;此外,切除过程中肝段创面出血往往需要阻断第一肝门才能有效控制,而阻断全入肝血流往往会导致肝脏的缺血再灌注损伤,对肝硬化较重的病人术后的肝功能恢复非常不利。因此,理想的方式是在穿刺染色的同时或者稍后进行肝段入 ...
【技术保护点】
1.一种肝内血管穿刺阻断钳,以交叉点转轴螺丝为界,分前臂和后臂两部分,后臂的左
【技术特征摘要】
1.一种肝内血管穿刺阻断钳,以交叉点转轴螺丝为界,分前臂和后臂两部分,后臂的左右两臂上各设有指环套和卡齿条,指环套安装在后臂上,左右后臂上的卡齿条相向互补,以便咬合卡住,卡齿条靠近转轴螺丝,其特征在于,左右前臂内均为中空设计,设置有通道,在左右前臂后端均设有安装孔,与通道相接通,位于左前臂前端侧面设有侧面孔,侧面孔与左前臂的通道相接通,左右前臂前端均设有尖端,尖端为半圆锥体,两侧尖端闭合成圆锥体,右前臂上的尖端内设置有通道,并且在其顶点侧面设有出孔,尖端内的通道与右前臂内的通道和出孔相接通,在左右前臂前端内侧分别设有无损伤钳齿和凹槽,无损伤钳齿与凹槽相互啮合,前臂闭合成前端直径小后端直径稍大的圆台体,便于刺穿血管。2.根据权利要求1所述的一种肝内血管穿刺阻断钳,其特征在于,安装孔位于左右前臂后端的...
【专利技术属性】
技术研发人员:张传海,郭凤林,余继海,马金良,张晓琴,张努,
申请(专利权)人:张传海,
类型:新型
国别省市:安徽,34
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