A liver vessel clamping device

Abstract

The invention discloses a hepatic blood vessel clamping device, which comprises a hollow sleeve; a hollow trocar passes through the hollow sleeve, and the tip of the hollow trocar protrudes from the hollow sleeve; the hollow sleeve The trocar is placed over the probe used to detect blood vessels in the liver; when the blood vessel to be probed is detected, the hollow trocar and the probe are moved out of the hollow cannula, and a vascular clip applier is passed through the hollow sleeve, and the clamping part of the blood vessel clip applier is close to and can clamp the blood vessel to be detected; the clamping part of the blood vessel clip applier extends out of the hollow sleeve away from the blood vessel to be detected one end. The device of the present invention, combined with ultrasound and 1:1 3D printing in vitro model training, can accurately directly hit the possible bleeding site and perform clipping operation, which can directly cause ischemia and discoloration of the liver segment in the tumor area, forming an accurate resection line, Therefore, liver lesions can be removed quickly and safely, opening a new era of liver surgery.

Description

technical field [0001] The invention relates to a liver blood vessel clamping device. Background technique [0002] The liver is the largest digestive gland in the digestive system of the human body. The average adult liver weighs between 1 and 2.5 kg, and it performs a variety of indispensable and important physiological functions. Hepatectomy in liver surgery is a basic and indispensable operation. Because the blood supply of the liver is very rich, it contains three sets of vascular systems: portal vein, hepatic artery and hepatic vein. The blood flow into the liver alone reaches 1400ml / min , and the liver is a large opaque block (the length, width, and thickness of the liver are about 25.8cm, 15.2cm, and 5.8cm), a solid organ, and the internal blood vessels are complicated. It is impossible to quickly and effectively find the main trunk for ligation by ordinary simple methods Hemostasis, so liver resection is often accompanied by massive bleeding. Bleeding is also the ...

AI Technical Summary

Problems solved by technology

However, the hemorrhage and ischemia-reperfusion-induced injury and liver failure during hepatectomy have not been well resolved

[0005] The existing technology does not directly target the blood vessels of the tumor segment that may bleed, but blocks the blood flow of the liver (also equivalent to clipping) from a remote, easily accessible liver

This can cause unnecessary hepatic ischemia-reperfusion injury leading to clinically fatal liver failure

Moreover, this indirect blood flow occlusion / clamping scheme takes a long time to operate, and the patient suffers more damage such as anesthesia and bleeding, and costs more

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