Nuclear pore filter membrane for precision medicine liquid filter and preparation method thereof

A technology of nuclear pore filter membrane and filter, which is applied in the field of nuclear pore filter membrane and its preparation for precise liquid medicine filter, to achieve the effect of preventing damage and uniform pore size

Active Publication Date: 2008-01-16
ZHEJIANG FERT MEDICAL DEVICE
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Problems solved by technology

[0005] In order to solve the technical problems existing in the filter membrane of the existing precision liquid medicine filter, the purpose of the present invention is to provide a core filter for the precision liquid medicine filter with good stability, uniform distribution of filter holes, uniform pore size, no self-pollution, and good flow rate. Pore ​​membrane

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  • Nuclear pore filter membrane for precision medicine liquid filter and preparation method thereof

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Embodiment Construction

[0027] The specific embodiment of the present invention will be further described below by taking a nuclear pore filter with a processing pore diameter of 5 microns and a substrate thickness of 25 microns as an example, as shown in FIG. 1 .

[0028] 1. Irradiation: Polycarbonate is used as the substrate film, and the substrate film passes through the HI-13 large-scale heavy ion tandem electrostatic accelerator of the China Institute of Atomic Energy. In the negative ion accelerator, high-energy charged particles are used to pass through the substrate film. , resulting in ionizing radiation damage. Micropores are left on the substrate film, and the penetration hole density is 5×5E per square centimeter.

[0029] 2. Sensitization treatment: It can sharpen the irradiated substrate film, especially the edge of the micropore, and is not easy to deform. It is a preparation process for the etching process, and generally only needs to be placed at room temperature for 30 to 45 days. ...

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PUM

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Abstract

The invention relates to the medical clinic transfusion field, more particularly, relating to the nuclear track microporous membrane used on a precision medical solution filter and the preparation method. The substrate membrane of the nuclear track microporous membrane used on the precision medical solution filter selects the polycarbonate as the material, and the nuclear track microporous membrane is obtained by high energy charged particle radiation and then sensitized and etching treatment to the substrate membrane, the apertures of the nuclear track microporous membrane are between zero point two micron and ten microns, the density of the nucleopores is that the membrane has five multiply one hundred and five to seven multiply one hundred and five pores per square centimeter. The preparation method of the nuclear track microporous membrane of the invention includes steps of radiation, sensitized treatment, etching and rinsing. The arrangement and application of the precision filter made by the nuclear track microporous membrane of the invention on the terminal of the infusion set of the disposable precision filtering infusion set can effectively filter the insoluble particles in the medical solution, and the filtration rate is more than or equal to ninety five percent, and hold the last pass of the medical solution form entering the human body, thus truly blocking the invasion of the insoluble particles to patients.

Description

technical field [0001] The invention relates to the field of medical clinical transfusion, in particular to a nuclear pore filter membrane for a precision liquid medicine filter and a preparation method thereof. Background technique [0002] Infusion therapy has been used clinically since the end of the 19th century. It has the characteristics of simple and convenient operation, remarkable curative effect and rapidity. With the continuous development of clinical pharmacy and medical technology, infusion therapy has become one of the indispensable means and methods in modern clinical treatment. First, it has an extremely important position in modern clinical practice. In my country, clinical infusion is extremely common, and the annual usage of disposable infusion sets has reached three billion. But while infusion therapy has extremely superiority, it also has its very unfavorable side, mainly manifested in: the harm of the insoluble particles in the medicinal liquid to huma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D69/02B01D69/06B01D67/00B01D71/50A61M5/165
Inventor 马建强
Owner ZHEJIANG FERT MEDICAL DEVICE
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