Hollow fiber membrane oxygenator and method

A fiber membrane and oxygenator technology, applied in the field of medical devices, can solve the problems of unreasonable position of arterial blood vent hole, inability to effectively remove air bubbles, low efficiency of oxygenation, and low temperature change, so as to achieve improved oxygenation and temperature change efficiency, low Blood pressure drop, enhanced blood flow effect

Inactive Publication Date: 2016-08-10
北京米道斯医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 2. Low efficiency of oxygenation and temperature change;
[0008] 3. The structure is unreasonable and the pre-charge volume is large;
[0009] 4. High blood pressure drop, variable temperature water pre

Method used

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  • Hollow fiber membrane oxygenator and method
  • Hollow fiber membrane oxygenator and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: as figure 1 , figure 2As shown, a hollow fiber membrane oxygenator is cylindrical as a whole, the inner cavity of the outer shell 1 is connected to the middle shell 2, the oxygenation chamber cavity formed by the outer shell 1 and the middle shell 2, and the inner cavity of the middle shell 2 is connected to the inner shell The shell 3, the middle shell 2 and the inner shell 3 form a temperature-changing chamber cavity, the upper cover 4 is connected to the top of the shell 1, and the oxygenation membrane 6 is connected in the oxygenation chamber cavity between the shell 1 and the middle shell 2, and the temperature is variable. The membrane 7 is connected in the temperature-changing chamber between the middle shell 2 and the inner shell 3,

[0041] The lower bottom 5 is connected to the bottom of the shell 1. The lower bottom 5 is divided into three layers of inner cavity, middle cavity and outer cavity. The inner cavity is a blood channel with a blood ...

Embodiment 2

[0047] Embodiment 2: as figure 1 , figure 2 As shown, a hollow fiber membrane oxygenator is made of a new type of polymer hollow fiber membrane with excellent blood compatibility. The double-layer fiber pad increases blood fluidity. The overall structure is compact and the prefilling volume is small. Maximize oxygenation area and variable temperature area, optimal blood flow route, high oxygenation and variable temperature efficiency, lower gas, blood, and water pressure, safe gas flow design, excellent bubble removal ability, complete transparency and perfect vision, scientific Reasonable interface position, safe and reliable standard quick-connect interface, can be integrated with low-resistance microembolism filter, can be coated, integrated with venous return chamber adapter, and can be rotated 180° for use.

[0048] A hollow fiber membrane oxygenator, using a new type of polymer material hollow fiber membrane with excellent blood compatibility; double-layer fiber pads t...

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Abstract

The invention discloses a hollow fiber membrane oxygenator and a method, and belongs to the technical field of medical devices. The hollow fiber membrane oxygenator is characterized in that the inner cavity of an outer shell is connected with a middle shell; the outer shell and the middle shell define the cavity of an oxygenation room; the inner cavity of the middle shell is connected with an inner shell; the cavity of a variable-temperature room is formed between the middle shell and the inner shell; an upper cover is connected to the top of the outer shell; an oxygenation membrane is connected to the cavity of the oxygenation room between the outer shell and the middle shell; a variable-temperature membrane is connected to the cavity of the variable-temperature room between the middle shell and the inner shell; a lower bottom is connected with the bottom of the outer shell, and is partitioned into a lower bottom inner cavity, a lower bottom middle cavity and a lower bottom outer cavity; the lower bottom inner cavity is a blood path with a blood inlet; the lower bottom middle cavity is a water path with a water outlet; the top side face of the outer shell is connected with an arterial blood air outlet; the bottom side face of the outer shell is connected with a blood outlet; an arterial blood sampling port is formed in the blood outlet; the bottom side face of the outer shell is connected with a temperature measuring port; the upper cover is partitioned into an upper cover inner cavity and an upper cover outer cavity; the upper cover inner cavity is taken as a water path; the upper cover inner cavity is connected with a water inlet; the upper cover outer cavity is connected with an air inlet; a cardioplegic solution injection port/arterial blood recirculation port is connected to a lower bottom side face.

Description

technical field [0001] The invention relates to a hollow fiber membrane oxygenator and a method, belonging to the technical field of medical devices. Background technique [0002] Extracorporeal circulation is to lead the venous blood outside the body for oxygenation, and then infuse it back into the body. The oxygenator is an essential device for extracorporeal circulation in cardiovascular surgery. It replaces the lung function to oxygenate the blood (exclude CO2 in the blood. , increasing O2 in the blood) and changing temperature. A high-performance oxygenator will greatly increase the success rate of the operation, reduce the occurrence of postoperative complications, and improve the quality of life of the patient after operation. The oxygenator that is widely used in clinical practice in China today is the bubbling oxygenator, which uses the principle of gas foaming to oxygenate blood in a foaming barrel. The oxygenation effect is poor and the safety is low. Membrane o...

Claims

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Application Information

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IPC IPC(8): A61M1/36
CPCA61M1/3601A61M1/3612A61M1/3627A61M1/369A61M2202/0208A61M2202/0225A61M2205/33A61M2205/3368A61M2205/36A61M2205/75A61M2230/202A61M2230/50A61M2202/0007
Inventor 李雷谢茜
Owner 北京米道斯医疗器械有限公司
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