Fine biliary tract incision device under laparoscope

A fine biliary tract incision device under a laparoscope comprises an inner core tube, a puncture needle is fixed to the front end of the inner core tube and composed of a horizontal part and an inclined part, the included angle between the horizontal part and the inclined part is 120-150 degrees, a three-way valve is installed at the rear end of the inner core tube, and a handle is fixed to the rear end of the inner core tube; in conclusion, the biliary tract puncture device can diagnose puncture under an endoscope, is convenient for determining the position of the biliary tract and preventing other tissues from being cut by mistake, is provided with the three-way valve by a new technology, is convenient for preserving and taking bile specimens, and is favorable for growth at an incisionand easy for postoperative recovery, and an electric incision wire for incision is thinner and biliary tract injury is smaller. 一种腹腔镜下精细胆道切开装置，包括内芯管，内芯管的前端固定有穿刺针头，穿刺针头由水平部和倾斜部组成，水平部与倾斜部的夹角为120°-150°，内芯管的后端安装有三通阀，内芯管的后端部固定有手柄；