Donor liver rapid fixation perfusion device in liver transplantation

Abstract

The invention discloses a fast fixation and perfusion device for a liver donor in liver transplantation, which comprises a bracket, a perfusion head and an adjustment plate. The adjustment plate is provided with installation grooves up and down, and the bracket penetrates through the installation groove and is slidably connected with it. There is a pressure regulating mechanism between the adjustment plates, and the adjustment plate is provided with a placement slot, and a filling bottle is placed in the placement slot, and a hose is installed at the lower end of the filling bottle, and the other end of the hose is fixedly connected to the There is a delivery pipe, the delivery pipe is fixedly connected with an anti-backflow mechanism, the lower end of the delivery pipe is connected to the upper end of the filling head through the connection mechanism, and the end of the filling head opposite to the delivery pipe is set as a tapered convex end. The invention not only facilitates the installation and disassembly of the conveying pipe, is simple and convenient to operate and has good sealing performance, but also can slow down the pressure on the channel to ensure the continuous perfusion of the liquid, and can also adjust the pressure of the perfusate to ensure the continuous perfusion of the perfusate .

Description

technical field [0001] The invention relates to the technical field of medicine, in particular to a device for quick fixation and perfusion of a donor liver in liver transplantation. Background technique [0002] At present, liver transplantation has become a routine treatment for end-stage liver disease. With the continuous promotion and improvement of liver transplantation technology in my country this year, the survival rate after liver transplantation has been continuously improved. The incidence of postoperative complications is also decreasing year by year. In liver transplantation, one of the key techniques in obtaining the donor liver is in situ perfusion of the liver. How to accurately locate and quickly perform catheter fixation and perfusion is a technical difficulty in obtaining high-quality liver sources. [0003] The prior art discloses a device for fast fixation and perfusion of a donor liver in liver transplantation with an application number of CN201510107...

AI Technical Summary

Problems solved by technology

The fast fixation and perfusion device for liver donor in liver transplantation includes a puncture guide device and a connecting ring connected to the perfusion tube, the puncture guide device is a puncture steel wire with a retractable ring at the top, and the retractable ring is magnetic; The top of the connecting ring is tapered, the bottom of the connecting ring is connected with the perfusion tube, and the bottom of the connecting ring is provided with a one-way flow valve, which can prevent the liquid from flowing back and continue to perfuse, but reduces the efficiency of perfusion and cannot to adjust the pressure

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