Gas delivery system for hepatic perfusion

Abstract

The invention discloses a gas delivery system for hepatic perfusion. A control module of the gas delivery system controls an oxygen delivery control component and a compressed air delivery control component to work according to output results of a hepatic artery neural network training model and a portal vein neural network training model, real-time detection results of a hepatic artery detectionmodule and a portal vein detection module are trained based on the neural network training models, preset oxygen partial pressure, partial pressure of carbon dioxide and blood oxygen saturation degree, and hepatic artery and portal vein gas delivery capacity can be accurately adjusted in real time, so that the oxygen partial pressure, the partial pressure of carbon dioxide and the blood oxygen saturation degree are stably outputted according to preset values. Moreover, universal wheels are arranged at the bottom of a base, so that the gas delivery system can be used and mounted in different surgical places. In addition, when the storage capacity of gas in an oxygen storage bottle and a compressed air storage bottle reaches critical values, an alarm module can timely inform operators of related information.

Description

technical field [0001] The invention relates to the technical field of liver perfusion, in particular to a gas control device for liver perfusion. Background technique [0002] When the liver is perfused, the mixed gas needs to be fed into the membrane oxygenator through the gas delivery system. The existing gas delivery system mixes oxygen, compressed air or other mixed gases through the air-oxygen mixer assembly in a certain fixed ratio and then enters the In the membrane oxygenator, moreover, the existing air-oxygen mixer generally adjusts the ratio of oxygen etc. manually, so the gas delivery volume of the hepatic artery and portal vein cannot be adjusted in real time according to the changes of the physiological parameters of the perfusate during liver perfusion. Moreover, the existing gas delivery system is generally fixedly installed in the operation site, and cannot be moved and installed according to the operation site. Contents of the invention [0003] In order...

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Problems solved by technology

[0002] When the liver is perfused, the mixed gas needs to be fed into the membrane oxygenator through the gas delivery system. The existing gas delivery system mixes oxygen, compressed air or other mixed gases through the air-oxygen mixer assembly in a certain fixed ratio and then enters the In the membrane oxygenator, moreover, the existing air-oxygen mixer generally adjusts the ratio of oxygen etc. manually, so the gas delivery volume of the hepatic artery and portal vein cannot be adjusted in real time according to the changes of the physiological parameters of the perfusate during liver perfusion. Moreover, the existing gas delivery system is generally fixedly installed in the surgical site, and cannot be moved and installed according to the surgical site.

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