Porta hepatis blocker

Abstract

The invention discloses a porta hepatis blocker. The porta hepatis blocker comprises a sleeve, a blocking hose, a folding assembly and a pressing device. The blocking hose is mounted at the lower end of the sleeve; the folding assembly is installed in the blocking hose and comprises a plurality of connecting assemblies which are arranged in sequence, and any connecting assembly is provided with two connecting units which are rotatably connected; the two connecting units of any connecting assembly are correspondingly and rotationally connected with the two connecting units of the adjacent connecting assembly respectively, and the line included angle theta 1 formed by the two rotating axes of the two adjacent connecting assemblies is smaller than 180 degrees; the pressing device is installed in the sleeve and connected with the two connecting units at the head end of the folding assembly, and when the pressing device is subjected to pressing force, the pressing device drives the tail end of the folding assembly to be wound to the wall of the sleeve. According to the porta hepatis blocking sleeve, blood vessels can be bound together under the condition that the blood vessels are not damaged.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a hepatic portal blocker. Background technique [0002] In clinical treatment, hepatic resection (whether it is open surgery or laparoscopic surgery) requires routine occlusion of hilar blood vessels to block hepatic blood flow to reduce liver section bleeding during resection. The currently used whole-hepatic inflow occlusion method (Pringle method) needs to be blocked for 15 minutes and then released for 5 minutes to repeat the cycle in order to avoid liver ischemia and postoperative liver failure after long-term occlusion. In laparotomy, it is easier for the doctor to block and loosen with his hands and forceps. However, in laparoscopic surgery, blocking and loosening need to be assisted by various instruments, which is time-consuming and inconvenient. At present, there is no well-established and recognized product for blocking the hilum of the liver under the laparo...

AI Technical Summary

Problems solved by technology

In laparotomy, it is easier for the doctor to block and loosen with hands and forceps

However, in laparoscopic surgery, blocking and loosening need to be assisted by various instruments, which is time-consuming and inconvenient

At present, there is no well-established and recognized product for blocking the hilum of the liver under the laparoscope for clinical use. The techniques and methods of blocking the hilum of the liver are different in each company, which leads to non-standardized comparison of surgical effects and affects the promotion of technology.

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