Metal pipe flow guide temperature changing device and oxygenator for ECMO

Abstract

The invention discloses a metal pipe flow guide temperature changing device. The metal pipe flow guide temperature changing device comprises a core shaft body and a metal pipe flow guide temperature changing structure, wherein the metal pipe flow guide temperature changing structure comprises a plurality of metal flow guide temperature changing pipes, each metal flow guide temperature changing pipe is spirally wound on the outer wall of the core shaft body, the metal flow guide temperature changing pipes are sequentially arranged in a spacing manner in the peripheral direction of the core shaft body, and a flow guide channel is formed between every two adjacent metal flow guide temperature changing pipes. The invention further discloses an oxygenator for ECMO. According to the metal pipe flow guide temperature changing structure for blood flow guide, the metal pipe flow guide temperature changing structure is directly formed by spirally winding the metal flow guide temperature changing pipes on the outer wall of the core shaft body, so that the space between the core shaft body and the metal pipe flow guide temperature changing structure is fully utilized, and the whole metal pipe flow guide temperature changing device is smaller in size; and when the oxygenator for ECMO is formed through cooperation with the metal pipe flow guide temperature changing device, the whole size of the oxygenator can be smaller, and medical application is facilitated.

Description

technical field [0001] The invention relates to the technical field of oxygenators, in particular to a metal tube diversion temperature-changing device and an oxygenator for ECMO. Background technique [0002] The patent titled "Spiral diversion integrated membrane oxygenator" and the notification number "CN208893292U" discloses a spiral diversion integrated membrane oxygenator. The patent titled "Oxygenation Silk Membrane, Oxygenation Unit, and ECMO Oxygenator" with publication number "CN111744065A" discloses an ECMO oxygenator. In order to prevent the blood from flowing directly to the lower part of the oxygenator along the shortest path under its own gravity and flow out from the outlet, resulting in a greatly reduced utilization rate of the temperature-changing membrane on the upper part of the oxygenator, The spiral diversion groove on the inner wall of the deflector of the shaft member realizes blood diversion. The mandrel part includes a mandrel body and a guide body...

AI Technical Summary

Problems solved by technology

In order to prevent the blood from flowing directly to the lower part of the oxygenator along the shortest path under its own gravity and flow out from the outlet, resulting in a greatly reduced utilization rate of the temperature-changing membrane on the upper part of the oxygenator, The spiral diversion groove on the inner wall of the deflector of the shaft member realizes blood diversion. The mandrel part includes a mandrel body and a guide body. The structure also indirectly increases the overall volume of the oxygenator, increasing the pre-filling capacity, and the forming process of opening a spiral diversion groove on the inner wall of the deflector is also more complicated and the manufacturing cost is higher

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