Oxygenator with negative pressure regulation and control function and control method of oxygenator with negative pressure regulation and control function

Abstract

The invention discloses an oxygenator with a negative pressure regulation and control function and a control method of the oxygenator with the negative pressure regulation and control function. The oxygenator comprises a pressure regulation and control device, a gas exchange device and a liquid volume measuring device; the gas exchange device is provided with an oxygenation chamber; the liquid volume measuring device is placed in the gas exchange device to measure liquid in the oxygenation chamber; the pressure regulation and control device is arranged on the oxygenation chamber, the outer portion of the pressure regulation and control device is connected with a central negative pressure source, the inner portion of the pressure regulation and control device communicates with the gas exchange device, and the pressure regulation and control device is used for regulating and controlling internal pressure of the oxygenation chamber; and the gas exchange device conducts gas exchange and heat exchange on blood which flows into the oxygenation chamber, and discharges the blood which flows into the oxygenation chamber. According to the oxygenator with the negative pressure regulation andcontrol function and the control method of the oxygenator with the negative pressure regulation and control function, the internal pressure of the oxygenation chamber is regulated and controlled through the pressure regulation and control device according to the requirements, a negative-pressure-assisted drainage effect is achieved, the gas exchange device conducts gas exchange and heat exchange on the blood which flows into the oxygenation chamber, and discharges the blood which flows into the oxygenation chamber, an oxygenation process regulated and controlled by negative pressure is achieved, and the drainage volume of venous blood is increased.

Description

technical field [0001] The invention relates to the technical field of medical device products, in particular to designing an oxygenator with a negative pressure regulation function and a control method thereof. Background technique [0002] The oxygenator quickly oxygenates the venous blood drawn from the body into arterial blood outside the body, and pumps it back into the body through an extracorporeal circulation machine to maintain the activities of various organs throughout the body. Therefore, the quality of the oxygenator directly affects the effect of extracorporeal circulation support, and the membrane oxygenator is the most commonly used due to its excellent performance. [0003] Conventional oxygenators venous blood is drained by gravity into the return chamber of the membrane lung. Air embolisms, tissue fragments and other microemboli are removed through a filter. The blood pump injects the blood from the recirculation chamber into the variable temperature cha...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of insufficient venous drainage in the oxygenation chamber in the prior art, the present invention provides an oxygenator with negative pressure regulation function and its control method

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