Porta hepatis blocking device

Abstract

The invention provides a porta hepatis blocking device. The porta hepatis blocking device consists of a clamping tongue, a double-cylinder shell, a clamping tongue cylinder, a shaft, a belt-penetrating cylinder, a clamping tongue tip, a clamping tongue press key, a spring sheet and a blocking belt, wherein the clamping tongue cylinder and the belt-penetrating cylinder form the double-cylinder shell; the clamping tongue has a 'Z' shape and is positioned in the clamping tongue cylinder; the shaft is connected with the clamping tongue and the clamping tongue cylinder; the spring sheet has an arcuate shape and is positioned in the clamping tongue cylinder; one end of the spring sheet is fixed with the clamping tongue cylinder; the bow back of the spring sheet is propped against the clamping tongue, so that the clamping tongue press key extends out of the clamping tongue cylinder; the tail end of the blocking belt is fixed with the clamping tongue cylinder; and the blocking belt is provided with toothed bumps. The porta hepatis blocking device enters the belt-penetrating cylinder through one end of the blocking belt, blocks and dredges blood flow entering a liver through expansion of the clamping tongue tip, and blocks the blood flow entering the liver under a laparoscope, namely blocks the first porta hepatis blood flow. The porta hepatis blocking device has reasonable design, simpleness and convenience of manufacturing and simpleness and practicability of operation, solves the problem perplexing the operation for a long time, greatly increases success rate of the operation and is convenient to popularize and apply.

Description

technical field [0001] The invention belongs to medical equipment, and relates to a hepatic portal blocking device for blocking the hepatic duodenum ligament of the first hepatic portal blood flow. Background technique [0002] The blood supply of the liver is very rich, the blood volume of the liver is equivalent to 14% of the total body, and the blood flow of the adult liver is 1500-2000ml per minute. The blood vessels of the liver are divided into two groups: the hepatic blood vessels and the hepatic blood vessels. The blood vessels entering the liver mainly include the proper hepatic artery and the portal vein located in the hepatoduodenal ligament, which belong to the dual blood supply. Due to the rich blood supply of the liver, in order to reduce intraoperative blood loss or avoid intraoperative hemorrhage during liver surgery, it is usually necessary to block the blood flow into the liver, that is, to block the blood flow of the first hepatic portal (or called blockin...

AI Technical Summary

Problems solved by technology

In the traditional laparotomy, there are many ways to block the hepatic duodenum, including manipulation (Pringle maneuver), blocking the duodenal ligament with a pediatric catheter, etc., but there is still a lack of methods in clinical practice The device is specially used to block the blood flow of the first hepatic portal. When using the Pringle maneuver, the operator needs to pinch the hepatoduodenal ligament with one hand, which will affect the surgical field of view and the surgical operation process. Urinary catheter), there is also the problem of inconvenient operation, and sometimes it is difficult to completely block the blood flow of the first hepatic portal in sudden hepatic hemorrhage, resulting in massive hemorrhage during operation

Another problem is that laparoscopic liver surgery is more and more widely used, but there is still a lack of a laparoscopic hilar blocking device, and so far there is no laparoscopic hilar blocking method

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