Plasma or serum separation membrane and filter apparatus including the plasma or serum separation membrane

A technology of serum separation and filtration instrument, which is applied in the field of plasma or serum separation membrane, and can solve the problems of unsatisfactory filtration speed, pollution, high cost, etc.

Active Publication Date: 2005-12-28
SEKISUI MEDICAL CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the method disclosed in Japanese Examined Patent Publication No. 2-23831 (1990) has economical problems because the use of hollow fibers requires high cost to produce disposable products
[0007] The method disclosed in Japanese Examined Patent Publication No. 6-64054 is ca

Method used

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  • Plasma or serum separation membrane and filter apparatus including the plasma or serum separation membrane
  • Plasma or serum separation membrane and filter apparatus including the plasma or serum separation membrane
  • Plasma or serum separation membrane and filter apparatus including the plasma or serum separation membrane

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0122] Prepare a separation membrane made of polycarbonate with a thickness of 10 μm (manufactured by Millipore, product number: GTTP04700, the separation membrane has a plurality of through holes with a circular cross-section, and the size of the pores is 0.2 μm). The separation membrane was cut into small pieces with a diameter of 13 mm, and placed in a commercially available filter cartridge (manufactured by Millipore Corporation, trade name: Sphinex filter holder Sx0130000).

example 2

[0124] An evaluation sample was prepared in the same manner as in Example 1 except that the diameter of the through hole was changed to 0.6 µm.

example 3

[0126] An evaluation sample was prepared in the same manner as in Example 1 except that the diameter of the through hole was changed to 2.0 µm.

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PUM

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Abstract

A plasma or serum separation membrane capable of omitting centrifugation, without hemolysis caused by red blood cell destruction, capable of conveniently and quickly separating plasma or serum from blood; and a filter comprising a plasma or serum separation membrane. In particular, a plasma or serum separation membrane is a membrane that separates plasma or serum from blood and has a void ratio of 30% or less; and a filter that includes a filter element capable of moving plasma faster than blood cells And the plasma or serum separation membrane sequentially connected with the rear side of the filter element.

Description

technical field [0001] The present invention relates to a plasma or serum separation membrane for separating plasma or serum components in blood containing blood cells, more particularly, to a plasma or serum separation membrane capable of successfully separating plasma or serum components without damaging red blood cells and Filter. Background technique [0002] Generally, in order to remove blood cells from blood to obtain plasma or serum required for experiments, various separation membranes have been proposed. [0003] For example, Japanese Examined Patent Publication No. 2-23831 (1990) discloses a method for collecting plasma from blood using a hollow fiber having micropores with a diameter of 0.05 to 1 μm, the porosity of the outer surface of which is not more than 40%, and the porosity of the inner surface is not less than 60%. [0004] Japanese Examined Patent Publication No.6-64054 (1994) proposes a method of passing through an average diameter of 0.2 to 5.0 μm an...

Claims

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Application Information

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IPC IPC(8): G01N33/48
Inventor 户川胜也冈本隆介五十川浩信
Owner SEKISUI MEDICAL CO LTD
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