A puncture cannula and perfusion catheter for perfusion of abdominal organ transplant donors

Abstract

The invention discloses a puncture cannula used for perfusion of abdominal organ transplant donors. The puncture cannula is a hollow tubular structure. The puncture cannula is provided with an anti-reverse tricuspid valve. The first side and the second side, respectively, the anti-reverse tricuspid valve is used to prevent the flow of blood from the first side to the second side, while the perfusion tube can pass through the anti-reverse tricuspid valve from the second side into the second side. On one side, the puncture tip of the puncture cannula is located on the first side. The present invention also discloses a perfusion catheter for perfusion of abdominal organ transplant donors, comprising a perfusion tube and the above-mentioned puncture cannula, wherein the perfusion tube can enter from the second side through the non-return tricuspid valve The first side passes through the hollow lumen of the puncture cannula. The invention has the advantages of good puncture effect, avoiding blood splashing and ejecting, effectively improving perfusion efficiency, ensuring the quality of donor organs, and the like.

Description

technical field [0001] The invention relates to the technical field of organ transplant donor surgical instruments, in particular to a puncture cannula and a perfusion catheter used for perfusion of an abdominal organ transplant donor. Background technique [0002] In the operation of donors donated by abdominal organs (such as liver, kidney, pancreas, small intestine, etc.), it is necessary to establish a perfusion system for abdominal organs as soon as possible, and quickly reduce the core temperature of the target organ through efficient perfusion to reduce the warm ischemia time of the target organ. To improve the success rate of transplant surgery, it is also necessary to avoid the flow of perfusate into unnecessary organs. The current surgical method is as follows: first, the abdominal aorta below the superior mesenteric artery is exposed, the distal aorta is ligated, the proximal end is ligated, the proximal aortic wall is incised, and an adult urinary catheter is ins...

AI Technical Summary

Problems solved by technology

During the operation, the abdominal aorta needs to be cut first during the insertion of the urinary catheter. During the operation, the blood pressure of the abdominal aorta is often too high, and some donors have aortic sclerosis, resulting in blood splashing after the incision, and the blood is very easy to spray. Therefore, the close cooperation of two surgeons is required during the catheterization process, and the operation is cumbersome. There is a possibility of repeated catheterization or even catheterization failure. Massive bleeding will affect the next operation and seriously affect the Perfusion efficiency of donor organ perfusate and organ quality

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