Separable hepatic laparoscopic vein blocker

Abstract

The invention relates to the technical field of medical devices, and provides a separable laparoscopic hepatic vein blocker. The blocker comprises hepatic vein blocking forceps and a blocking forceps operator, wherein the hepatic vein blocking forceps consist of a pair of forceps clip limbs (1), a limb connecting shaft (2) and a spring (3), and the pair of forceps clip limbs are connected in a crossing shape through the limb connecting shaft; a front arm (1.1) of each forceps clip limb is shaped as a bent hook, and a rear arm (1.2) of each forceps clip limb is provided with a latch (1.3); theblocking forceps operator consists of a control lever and a control lever shell (4); a pair of chutes (4.2) are formed on the control lever shell; the control lever consists of a control handle (5), a first link lever (6), a second link lever (7) and a stationary shaft (8); and a lockhole (7.1) matched with the latch (1.3) on the rear arm of each forceps clip limb is formed on the opposite side of the front end of the second link lever and used for being connected with the hepatic vein blocking forceps. The separable laparoscopic hepatic vein blocker is simple in structure and convenient in use, and solves the difficult problem of blocking hepatic vein blood flow of the liver in a laparoscopic liver surgery.

Description

technical field [0001] The invention relates to the technical field of medical devices, and relates to a laparoscopic detachable hepatic vein blocker used in laparoscopic hepatectomy. Background technique [0002] Clinically, surgical resection is the most effective method for the treatment of liver tumors. Conventional liver resections reduce bleeding by blocking the blood flow of the hepatic veins by using various vascular clamps and occlusion tapes. The hepatic vein is one of the large veins in the human body. Controlling the blood flow of the hepatic vein by clamping the hepatic vein is one of the important ways to reduce bleeding in conventional liver resection. However, the traditional surgical method is traumatic and has many complications. slow. Colleagues at home and abroad have long placed their hopes on laparoscopic surgery to reduce trauma and speed up recovery, and have carried out arduous explorations for it. One of the difficulties encountered in laparoscop...

AI Technical Summary

Problems solved by technology

One of the difficulties encountered in laparoscopic surgery for liver tumors is the hemostasis of blood vessels. Because the liver is fragile, the intrahepatic structure is complex, and the wall of the hepatic vein is thin. Once the hepatic vein ruptures accidentally, a large amount of CO in the pneumoperitoneum will 2 Entry into the pulmonary circulation would result in fatal gas embolism, potentially making laparoscopic liver tumor resection riskier than traditional open liver resection

However, the shape, size and structure of the existing clinically used vascular clamps and blocking bands are not suitable for laparoscopic surgery, so it is difficult to widely carry out laparoscopic liver tumor or hepatic hemangioma resection

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