A membrane oxygenation device

By employing a slanted flow divider column and a flow guide grid structure in the membrane oxygenation device, the problems of thrombosis and uneven flow at the blood outlet of the cylindrical oxygenator were solved, thus achieving safe blood circulation and improved oxygenation efficiency.

CN117563069BActive Publication Date: 2026-07-10CHINABRIDGE (SHENZHEN) MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINABRIDGE (SHENZHEN) MEDICAL TECH CO LTD
Filing Date
2023-12-01
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing cylindrical oxygenators are prone to thrombosis at the blood outlet due to the structural design of the shunt column, and uneven blood flow leads to low oxygenation efficiency.

Method used

A membrane oxygenation device is used. By setting a second upper end face with an oblique cut and a flow guide grid on the flow divider column, blood flows in from the blood inlet and then flows into the heat exchange section along the circumference of the shell for heating. Then it enters the oxygenation section for oxygenation and finally flows out from the blood outlet. The flow guide grid is set between the heat exchange section and the oxygenation section, and the blood undergoes gas exchange in the oxygenation section.

Benefits of technology

It enhances the blood flow rate on the opposite side of the blood outlet, solves the thrombosis problem, and improves oxygenation efficiency, ensuring the safe circulation of blood in the oxygenation device.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117563069B_ABST
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Abstract

The embodiment of the application provides a membrane oxygenation device, which comprises a shell, a shunt column is arranged in the shell, a heat exchange part and an oxygenation part are sequentially arranged between the shunt column and the shell from inside to outside, a blood inlet and a blood outlet are arranged on the shell, a connecting head is arranged above the shunt column, the connecting head and the shunt column are connected through a plurality of interval arranged connecting pieces, blood flows into the shell from the blood inlet, is shunted by the shunt column, then flows into the heat exchange part along the circumferential direction of the shell, the blood is heated by the heat exchange part, then the blood enters the oxygenation part to be oxygenated, and finally flows out of the shell through the blood outlet, the upper end surface of the shunt column comprises a first upper end surface and a second upper end surface which are arranged adjacently, the first upper end surface is close to the blood outlet of the oxygenation device, the second upper end surface is away from the blood outlet of the oxygenation device, the first upper end surface is a plane, and the second upper end surface has a preset included angle with the first upper end surface. The application can solve the problem of uneven blood flow rate caused by a single outlet of a conventional vertical oxygenator.
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