A balloon type blood flow occlusion instrument

Abstract

The invention discloses an airbag type blood occlusion instrument comprising an airbag type blood occlusion piece and a pressure regulation and control device, wherein the airbag type blood occlusion piece is connected with the pressure regulation and control device by virtue of an inflation tube; the pressure regulation and control device is connected with an external air source; the airbag type blood occlusion piece comprises an occlusion belt, an inflatable airbag and a fixed belt; the inflatable airbag is fixedly arranged on the occlusion belt; the fixed belt is arranged at two ends of the occlusion belt, and the inflatable airbag is fixed and wrapped on a hepatoduodenal ligament by fixing the fixed belt at the two ends of the occlusion belt. Compared with the prior art, by wrapping the inflatable airbag on the hepatoduodenal ligament and inflating the inflatable airbag, a pressure is indirectly applied to the hepatoduodenal ligament, and the control of portal vein flow or / and hepatic arterial flow is selectively realized, so that the airbag type blood occlusion instrument is safer and more convenient to use, warm ischemia reperfusion injuries to liver are greatly reduced, and the occlusion time is effectively prolonged.

Description

technical field [0001] The invention relates to the field of surgical instruments, in particular to a balloon-type blood flow blocking instrument. Background technique [0002] The liver is an organ with a rich blood supply. Its total blood flow accounts for about 1 / 4 of the blood output of the heart, and the blood flow can reach 1500mL per minute. The first hepatic hilum is an important channel of the liver, and the blood flow of the portal vein and hepatic artery wrapped around the hepatoduodenal ligament needs to flow into the liver through the first hepatic hilum. For a long time, the control of bleeding in liver surgery has been a difficult problem in the development of liver surgery. At present, the Pringle method is commonly used to block the blood flow of the first hepatic hilum. The Pringle method refers to the use of catheters, silicone tubes and other devices to wrap the hepatoduodenal ligament and fix it with hemostatic forceps for one to two weeks and then tig...

AI Technical Summary

Problems solved by technology

However, this method needs to separate the portal vein during the operation, which undoubtedly increases the complexity of the operation; and if bleeding occurs during the operation, it is necessary to switch to blocking the blood flow of the portal vein and the hepatic artery at the same time, and the operation is also very inconvenient ; moreover, this method is difficult to implement endoscopically

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