Puncture cannula and perfusion catheter for abdominal organ transplantation donor perfusion

Abstract

The invention discloses a puncture cannula for abdominal organ transplantation donor perfusion, the puncture cannula is a hollow tubular structure, a non-return tricuspid valve is arranged in the puncture cannula, the two sides of the non-return tricuspid valve are respectively a first side and a second side, the non-return tricuspid valve is used for preventing blood from flowing from the first side to the second side, and enabling a perfusion tube to penetrate through the non-return tricuspid valve from the second side to enter the first side, wherein the puncture tip of the puncture cannula is located on the first side. The invention further discloses a perfusion catheter used for perfusion of the abdominal organ transplantation donor, the perfusion catheter comprises a perfusion tube and the puncture cannula, and the perfusion tube can penetrate through the hollow inner cavity of the puncture cannula in the mode that the perfusion tube penetrates through the non-return tricuspid valve from the second side to enter the first side. The device has the advantages that the puncture effect is good, blood is prevented from splashing and spraying out, the perfusion efficiency is effectively improved, and the quality of donor organs is guaranteed.

Description

technical field [0001] The invention relates to the technical field of surgical instruments for organ transplant donors, in particular to a puncture sleeve and a perfusion catheter for abdominal organ transplant donor perfusion. Background technique [0002] During donor surgery for abdominal organ donation (such as liver, kidney, pancreas, small intestine, etc.), it is necessary to establish an abdominal viscera perfusion system 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, at the same time, it is also necessary to avoid the flow of perfusate into unnecessary organs. The current surgical method is as follows: first expose the abdominal aorta below the superior mesenteric artery, ligate the distal aorta, tie the proximal end with a thread, incise the proximal aortic wall and insert an adult urinary catheter (p...

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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