Poly(4-methyl-1-pentene) hollow fiber membrane applied to ECMO, and preparation method thereof

A fiber membrane and pentene technology, which is applied in the field of poly-4-methyl-1-pentene hollow fiber membrane and its preparation, can solve the problems of complex production process, difficult regulation of pore size, and many control conditions, etc. The effect of good continuity, uniform distribution of surface pore structure, and easy control
CN113144909APending Publication Date: 2021-07-23NANJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NANJING UNIV OF TECH
Publication Date
2021-07-23

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Abstract

The invention relates to a preparation method of a hollow fiber membrane, and concretely relates to a poly(4-methyl-1-pentene) hollow fiber membrane applied to ECMO, and a preparation method thereof. According to the method for preparing the poly(4-methyl-1-pentene) porous membrane by adopting the melt extrusion method, the poly(4-methyl-1-pentene) hollow fiber membrane with different membrane pore forms is prepared from poly(4-methyl-1-pentene) and different types of diluents in the production process of the method. According to the principle of film forming, after poly(4-methyl-1-pentene) powder and a diluent are mixed, the mixture is subjected to double-screw melting and then stretched, extruded and molded through a spinning nozzle, the poly(4-methyl-1-pentene) hollow fiber membrane is prepared through two-step cold and hot stretching, rubber material coating is conducted through a deposition tank, a compact layer is formed on the surface of the hollow fiber film, and the diluent is extracted to generate different membrane pore forms and porous structures, so that the poly(4-methyl-1-pentene) composite hollow fiber membrane with certain pore size distribution, good microporous structure and anti-leakage function is obtained.
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Description

technical field

[0001] The invention relates to a preparation method of a hollow fiber membrane, in particular to a poly-4-methyl-1-pentene hollow fiber membrane applied to ECMO and a preparation method thereof. Background technique

[0002] Extracorporeal Membrane Oxygenation (ECMO), which is a combination of artificial lung and artificial heart, is a medical emergency technical equipment, the core part is the membrane lung and blood pump, which play the role of artificial lung and artificial heart respectively , can provide short-term cardiopulmonary support to patients with severe cardiopulmonary failure, and win precious time for critically ill rescue. ECMO support is an adjuvant treatment measure that cannot be replaced by other medical technologies at present, and to a certain extent represents the hospital's rescue level for critically ill patients. According to the MarketsandMarkets research report, Microvat, Medtronic and Rinova (the ECMO brand is Sorin) are the to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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