CN201058159Y - Filter for removing white blood cell - Google Patents
Filter for removing white blood cell Download PDFInfo
- Publication number
- CN201058159Y CN201058159Y CNU2007200717255U CN200720071725U CN201058159Y CN 201058159 Y CN201058159 Y CN 201058159Y CN U2007200717255 U CNU2007200717255 U CN U2007200717255U CN 200720071725 U CN200720071725 U CN 200720071725U CN 201058159 Y CN201058159 Y CN 201058159Y
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- China
- Prior art keywords
- filtration
- filter
- layers
- aperture
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a leukocyte removing filter, which is characterized in that the leukocyte removing filter is a cavity composed of an upper cover with an input channel and a lower cover with an input channel; a filtration core composed of multilayer polyester fabric non-woven filtration films is arranged inside the cavity; wherein, the aperture of the top layer of the filtration layer is larger than that of the other layers; as a preferable proposal, the filtration core comprises ten layers of filtration films; the aperture diameter of the top layer and the filtration films at the bottom layer is 35um, and the aperture diameter of the other layers is 21um. The utility model can effectively eliminate the leukocyte in the blood, reduce the transfusion reaction caused by blood transfusion to improve the transfusion quality, effectively lower the possibility of pathogen infection and avoid the bias flow of the liquid during the filtration to improve the filtration ratio and reduce the filtration time.
Description
Technical field
This utility model relates to the correlative technology field of medical apparatus and instruments, particularly a kind of leucocyte-removing filter.
Background technology
Leukocyte is the important component part of human body natural's system of defense, but can produce many side effect in company with blood product allosome infusion, as nonhemolytic febrific reaction (NHFTR), the anti-host disease of the value of moving thing (GVHD) and may propagate CAV (GMV, HTLV-1/II, HIV-I) etc. after the blood transfusion.
The utility model content
This utility model provides a kind of leucocyte-removing filter, its objective is the transfusion reaction that causes through blood transfusion in order to reduce, and improves the blood transfusion quality, effectively reduces the chance of pathogenic infection.
For achieving the above object, this utility model has adopted following technical scheme:
The utility model discloses a kind of leucocyte-removing filter, it is characterized in that: described leukocyte depletion filter is one and is provided with the cavity that the lower cover of output channel constitutes by a loam cake and that is provided with input channel, is provided with the filter element that is made of multi-layered polyester fabric nonwoven cloth filter membrane in the cavity.
Wherein, the aperture of the top layer of described filter element and bottom filter membrane is greater than other each layers.
As a kind of preferred version, described filter element includes 10 metafiltration films, and the aperture of top layer and bottom filter membrane is 35 μ m, and the aperture of other each layers is 21 μ m.
The advantage of this utility model device is: can effectively remove the leukocyte in the blood, and prevent the liquid bias current in filter process, improve rejection rate, reduce the filtering time.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described.
A kind of leucocyte-removing filter, as shown in Figure 1, described leukocyte depletion filter is one and is provided with the cavity that the lower cover 4 of output channel 5 constitutes by a loam cake 1 and that is provided with input channel 2, be provided with the filter element 3 that constitutes by multi-layered polyester fabric nonwoven cloth filter membrane in the cavity, filter element 3 includes 10 metafiltration films, the aperture of top layer and bottom filter membrane is 35 μ m, and the aperture of other each layers is 21 μ m.
Claims (3)
1. leucocyte-removing filter is characterized in that: described leukocyte depletion filter is one and is provided with the cavity that the lower cover of output channel constitutes by a loam cake and that is provided with input channel, is provided with the filter element that is made of multi-layered polyester fabric nonwoven cloth filter membrane in the cavity.
2. leucocyte-removing filter according to claim 1 is characterized in that: the aperture of the top layer of described filter element and bottom filter membrane is greater than other each layers.
3. leucocyte-removing filter according to claim 1 is characterized in that: described filter element includes 10 metafiltration films, and the aperture of top layer and bottom filter membrane is 35 μ m, and the aperture of other each layers is 21 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200717255U CN201058159Y (en) | 2007-06-27 | 2007-06-27 | Filter for removing white blood cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200717255U CN201058159Y (en) | 2007-06-27 | 2007-06-27 | Filter for removing white blood cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201058159Y true CN201058159Y (en) | 2008-05-14 |
Family
ID=39406614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200717255U Expired - Fee Related CN201058159Y (en) | 2007-06-27 | 2007-06-27 | Filter for removing white blood cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201058159Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614556A (en) * | 2012-04-19 | 2012-08-01 | 南京红十字血液中心 | Combined filter membrane for efficient filtration of leukocyte, manufacturing method thereof and leukocyte filter |
| CN104998308A (en) * | 2015-07-31 | 2015-10-28 | 四川南格尔生物科技有限公司 | Leucocyte depletion filter and filtering method |
| CN106178638A (en) * | 2015-03-03 | 2016-12-07 | 张家港高力特医疗器械有限公司 | Filter |
| CN109306073A (en) * | 2017-07-26 | 2019-02-05 | 韩昱苏 | Hydrophobic three-dimensional porous material and its preparation method and application and blood storage bag |
-
2007
- 2007-06-27 CN CNU2007200717255U patent/CN201058159Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614556A (en) * | 2012-04-19 | 2012-08-01 | 南京红十字血液中心 | Combined filter membrane for efficient filtration of leukocyte, manufacturing method thereof and leukocyte filter |
| CN106178638A (en) * | 2015-03-03 | 2016-12-07 | 张家港高力特医疗器械有限公司 | Filter |
| CN104998308A (en) * | 2015-07-31 | 2015-10-28 | 四川南格尔生物科技有限公司 | Leucocyte depletion filter and filtering method |
| CN109306073A (en) * | 2017-07-26 | 2019-02-05 | 韩昱苏 | Hydrophobic three-dimensional porous material and its preparation method and application and blood storage bag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20130627 |