Leucocyte filter

A filter and white blood cell technology, applied in the field of blood transfusion equipment, can solve the problems of small rupture, pollution, adverse reactions, etc.

Inactive Publication Date: 2005-07-06
杨星
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the collected blood needs to be stored within 35 days, and the survival of white blood cells is only 2 to 12 hours, the white blood cells must be filtered out within 2 to 12 hours. Therefore, the white blood cell filter should be connected with the blood bag in a closed state, to prevent bacterial contamination, and because there is blood anticoagulant in the blood bag, it needs to be sterilized at a temperature of 90°C to 140°C for 20 to 80 minutes. Due to the difference in materials, the coefficient of thermal expansion and contraction of the hard shell and The thermal expansion and contraction coefficients of the microporous filter m

Method used

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Embodiment Construction

[0021] Referring to the accompanying drawings, specific embodiments of the present invention will be described.

[0022] figure 1 It is the schematic diagram of the front of the white blood cell filter one. It consists of an upper conduit 1, an elastic soft body 2 and a lower conduit 6, and is characterized in that the elastic soft body 2 is connected with the conduit 1, and the elastic soft body 2 is connected with the lower conduit 6.

[0023] figure 2 It is a schematic cross-sectional view of the leukocyte filter when it is sterilized. It consists of upper conduit 1, elastic soft body 2, upper tightening body 3, lower tightening position 4, upper tightening position 5, lower duct 6, lower tightening body 7, pre-sterilized position 8, post-sterilized position 9, microporous filter membrane 10 and outlet 11, characterized in that: the elastic soft body 2 is connected with the upper conduit 1, the elastic soft body 2 is connected with the lower conduit 6, the elastic soft ...

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Abstract

The invention concerns a leucocyte filter, which belongs to medical transfusion apparatus for removing leucocyte in blood. It consists of upper duct 1, elastic soft body 2, upper fastening body 3, down duct 6, down fastening body 7, microporous membrane 10 and characterizes in that a body case is assembled by elastic soft body 2, upper fastening body 3, down fastening body 7 and only upper duct 1 and down duct 6 inside the body case communicates to the outside, the rest of which is closed.

Description

technical field [0001] The present invention relates to a device for transfusion and collection of blood, and more precisely relates to a filter for removing leukocyte components in blood after blood collection from a human body. Background technique [0002] Because there are certain differences in blood between people, adverse reactions often occur during blood transfusions, and these adverse reactions basically come from the white blood cells in the blood. Therefore, the white blood cells in the blood should be removed to reduce the adverse reactions of clinical blood transfusion. Larger, the leukocyte filter with a higher integrity rate of the microporous membrane can filter out leukocytes. In the existing leukocyte filter, all sides of the shell are made of hard materials. Before its sterilization, the hard shell has pressed the outer periphery of the microporous filter membrane of the leukocyte filter so that the blood can pass through t...

Claims

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Application Information

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IPC IPC(8): A61M1/34
Inventor 杨星
Owner 杨星
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