Separable portal vein blocker under laparoscope

A portal vein and blocker technology, applied in the field of medical devices, can solve the problems that the shape, size and structure of the vascular clamp are not suitable for laparoscopic surgery, difficult to carry out extensive liver tumor or hepatic hemangioma resection, gas embolism, etc. Simple, less occlusion, easy to use effect

Inactive Publication Date: 2011-07-20
SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Separable portal vein blocker under laparoscope
  • Separable portal vein blocker under laparoscope
  • Separable portal vein blocker under laparoscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1. A laparoscopic detachable portal vein blocker

[0015] The clamping limb 1.1 of the portal vein blocking forceps 1 of the present invention is an arc-shaped curved sheet structure with a thickness of 0.2 cm, a length of 3.5 cm, a width of 0.6 cm, and an arc of 150 degrees; the rear arm 1.2 of the clamping limb 1 has a thickness of 0.2 cm, 2cm long and 1cm wide, the forearm 1.1 and the rear arm 1.2 form an angle of 120 degrees, the lock 1.3 on the outside of the tail of the rear arm 1.2 is a hemispherical protrusion with a diameter of 0.3cm, and the inner side of the spring 3 is 2.5cm long in a natural state; The joystick housing 4 body of the clamp manipulator is cylindrical, with a length of 40 cm and a diameter of 5 cm. The intersection of the two second linkage rods 7 is fixed on the front end of the joystick housing through a fixed shaft 8, and the rear end of the joystick housing 4 There are 3 bayonets on one side of the chute 4.2 on both sides, which...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/122
Inventor 刘辉张金旻邵雪晴刘亚莉周伟平
Owner SECOND MILITARY MEDICAL UNIV OF THE PEOPLES LIBERATION ARMY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products