Separable portal vein blocker under laparoscope

Abstract

The invention relates to the technical field of medical apparatuses and discloses a separable portal vein blocker under a laparoscope. The separable portal vein blocker consists of a pair of vein blocking pincers and a blocking pincer manipulator. The pair of vein blocking pincers consists of a pair of pincer limbs (1), a limb connecting shaft (2) and a spring (3), wherein the pair of pincer limbs is in cross connection through the limb connecting shaft; front arms (1.1) of the pincer limbs are cambered and bent; and the tail parts of rear arms (1.2) of the pincer limbs are provided with lock catches (1.3). The blocking pincer manipulator consists of an operating rod and an operating rod shell (4), wherein a pair of chutes (4.2) is formed on the two sides of the tail part of the operating rod shell; the operating rod consists of a control handle (5), a first linkage rod (6), a second linkage rod (7) and a fixing shaft (8); and lock holes (7.1) matched with the lock catches (1.3) of the rear arms of the pincer limbs are formed on the opposite faces of the front ends of the two linkage rods, so that the linkage rods are linked with the veining blocking pincers. The separable portal vein blocker has a simple structure, is convenient to use and solves the problem of blocking portal vein bleeding of a liver operation under the laparoscope.

Description

technical field [0001] The invention relates to the technical field of medical devices, and relates to a laparoscopic detachable portal vein blocker used in laparoscopic hepatectomy. Background technique [0002] Clinically, surgical resection is the most effective method for the treatment of liver tumors. Conventional hepatectomy uses various vascular clamps and blocking bands to block the blood flow of the portal vein to reduce bleeding. However, the traditional surgical method is traumatic, with many complications and slow recovery. 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 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 la...

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 Entering the pulmonary circulation will lead to fatal gas embolism, which may make laparoscopic liver tumor resection more risky than traditional open liver resection, but the shape, size and structure of the existing clinically used vascular clamps and blocking bands Not suitable for laparoscopic surgery

Therefore, it is difficult to widely carry out laparoscopic liver tumor or hepatic hemangioma resection

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