A rapid perfusion device for liver donors during liver transplantation

Abstract

The invention discloses a fast perfusion device for a liver donor during liver transplantation, which comprises a perfusion tube, a fixed sleeve, a fixed shaft, a toothed knob, a spacer sleeve, an adjustment block, a penetrating wire, a one-way valve I, an injection ball, II One-way valve, connecting hose, interface end, telescopic connecting tube, shunt tube, and separation plate, first of all, through the innovative design of built-in plug-in shunt balance chamber, it can avoid the insufficient perfusion of left and right livers, and cooperate with the telescopic cone The tip of the shunt is sharp, which can not only quickly pierce the blood vessel wall and open up the blood vessel, but also can retract to avoid the continuous existence of the sharp tapered end, which improves the safety of the operation. In addition, the front end of the shunt tube is designed in a hole shape, which is convenient for perfusion The liquid flows into the liver quickly, and combined with the one-way liquid injection mechanism, it avoids the reflux situation and ensures the liquid injection effect. Promote apps.

Description

technical field [0001] The invention relates to the technical field of liver transplantation perfusion, in particular to a rapid perfusion device for donor livers 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] When traditional donor livers are obtained, the liver is quickly explored after laparotomy to find out whether there is cirrhosis, liver mass,...

AI Technical Summary

Problems solved by technology

However, in this process, the intubation is prone to be too deep. At this time, the perfusate flows to the right hemihepatic roof, which may easily lead to insufficient perfusion of the left and right livers. The middle is slower, resulting in differences in left and right hepatic ischemia time

At the same time, there is no device to prevent liquid reflux in the traditional perfusion pipeline, and the liquid perfusion completely relies on gravity to enter the donor liver. During the entire perfusion process, various factors may cause the perfusate to reflux at any time, resulting in a slowdown of the perfusion speed.

[0004] According to the above, although the current Chinese patent liver transplantation liver donor fast fixed perfusion device (authorized publication number: CN104770361 B) has solved certain existing defects, there are also the following problems; 2. Although there is a sharp point for easy puncture and insertion, it is inconvenient to retract it, which brings great safety hazards to the operation. In view of this, it is necessary to design A fast perfusion device for donor liver in liver transplantation to solve the above problems

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