Cell screen

Abstract

The utility model discloses a cell screen, and aims to provide a cell screen which is provided with a front filter screen which is detachable and convenient to clean, the specification of the front filter screen can be flexibly changed according to experiment content, the cell screen is characterized by comprising a screen and a screen pipe, the screen is arranged on the bottom surface of the screen pipe, the screen pipe comprises a connecting body and a supporting body, and the connecting body is connected with the supporting body. A clamping piece detachably connected with the connecting body is arranged at the bottom of the connecting body, a clamping groove is formed in the top of the supporting body, the clamping piece is in interference fit with the clamping groove, and a detachable filter screen is arranged on the inner side of the clamping piece.

Description

Technical Field

[0001] This utility model relates to a cell sieve, and more specifically, to a pre-filter with a detachable and easy-to-clean pre-filter, which can be flexibly replaced with a cell sieve of different specifications according to the experimental requirements. Background Technology

[0002] Cell sieves are important instruments commonly used in biological laboratories for cell culture, filtering impurities, and sample purification. They are often used for cell suspension filtration and primary cell separation.

[0003] Cell sieves are usually used in conjunction with centrifuge tubes. Currently available cell sieves often require the use of centrifuge tubes, and typically one type of cell sieve can only be used with one type of centrifuge tube, which is not practical. Incomplete filtration is also prone to occur during use. Furthermore, the sieve itself is not easy to clean due to its integrated design, which can affect subsequent experiments. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a pre-filter that is detachable and easy to clean, and the pre-filter can be flexibly replaced with cell sieves of different specifications according to the experimental requirements.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cell sieve, comprising a sieve and a sieve tube, wherein the sieve is disposed on the bottom surface of the sieve tube, the sieve tube comprises a connector and a support, the bottom of the connector is provided with a clip that is detachably connected to the connector, the top of the support is provided with a slot, the clip and the slot form an interference fit, and a detachable filter screen is provided inside the clip.

[0006] By adopting the above technical solution, the cell screen is divided into a connector for connecting external parts and a support for supporting the centrifuge tubes. The connector and the support are strengthened by the interference fit between the clips and slots. When using centrifuge tubes of different specifications, the support can be removed and other specifications can be switched. The detachable filter screen provided inside the clip can also be replaced with different specifications as needed, such as different pore sizes and different filter screen areas. When extracting cell suspension, the filter screen can initially filter impurities in the suspension to improve the subsequent filtration effect.

[0007] The present invention is further configured such that: a fixing member for fixing the card is provided on the inner side of the connecting body.

[0008] By adopting the above technical solution, the fastener is used to fix the detachable clip, further enhancing the connection strength between the connector and the support.

[0009] The utility model further sets up: support body below is equipped with the connecting plate for connecting external connecting piece, is equipped with the connecting groove on the connecting plate.

[0010] Through adopting above technical scheme, support body below is equipped with the connecting plate, is equipped with the connecting groove on the connecting plate, the connecting plate and support body bottom end are used to connect centrifugal tube, and it is fixed between connecting plate and support body, when installing, connecting groove can be as the force point of human hand, more in line with ergonomics.

[0011] The utility model further sets up: support body shape adopts funnel shape, connecting body shape adopts cylindrical, the maximum cross section diameter of support body is same with the cross section diameter of connecting body.

[0012] Through adopting above technical scheme, the shape of support body and connecting body is matched, and the cross section area of connecting body of upper part is greater than or equal to the cross section area of support body of lower part, which accords with the conventional shape design of screen mesh, and the overall profile accords with its own effect.

[0013] The utility model further sets up: support body outside is equipped with a plurality of support plates.

[0014] Through adopting above technical scheme, support body outside is equipped with the support plate, and the screen pipe whole can be fixed in the specified position through the support plate, and effective fixation can be formed through the support plate when carrying out cell experiment, so as to prevent the centrifugal tube from shaking and causing solution splash, unnecessary waste is caused, and safety is improved.

[0015] The utility model further sets up: connecting body outside is equipped with the antiskid line.

[0016] Through adopting above technical scheme, the antiskid line further improves the stability of the whole, and when the connecting body is gripped by external equipment or hand, the antiskid line can improve the friction coefficient on the contact surface, and effectively prevent slipping.

[0017] The utility model further sets up: the filter screen is made of nylon material, and the material of the screen mesh is stainless steel, polycarbonate or polyester.

[0018] By adopting the technical scheme, the filter screen adopts nylon woven material convenient to clean, the nylon material has high strength and can support large pressure, and the unique edge covering technology is adopted to effectively prevent needle eye leakage, the screen mesh adopts stainless steel, polycarbonate or polyester material, the stainless steel screen has high durability and corrosion resistance and can be applied in various environments, and the polycarbonate or polyester has good biocompatibility and is suitable for some test scenes with high requirements on cell activity, neither the filter screen nor the screen mesh is limited to the above materials, and it is feasible to select other reasonable materials according to the experimental content. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a first perspective view of the cell screen of the utility model;

[0020] Fig. 2 It is a second perspective view of the cell screen of the utility model;

[0021] Fig. 3 It is a sectional view of the cell screen of the utility model;

[0022] The attached drawing marks are as follows: 1, screen mesh; 2, connecting body; 3, support body; 4, clamping piece; 5, clamping groove; 6, filter screen; 7, fixing piece; 8, connecting plate; 9, connecting groove; 10, support plate; 11, anti-skid pattern. DETAILED DESCRIPTION

[0023] REFERENCE Figs. 1 to 3 The cell screen embodiment of the utility model is further described.

[0024] In order to facilitate the description, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to describe the relationship of one element or feature with respect to another element or feature shown in the drawings. It should be understood that, in addition to the orientation shown in the drawings, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the drawing is inverted, the element described as being "below" other elements or features will be positioned "above" the other elements or features. Therefore, the exemplary term "below" can include both upward and downward orientations. The device can be positioned in other ways (rotated 90 degrees or positioned in other orientations), and the spatial relative description used herein can be interpreted accordingly.

[0025] Moreover, relational terms such as "first" and "second" and the like are merely used to distinguish one component from another component having the same name, and do not necessarily require or imply any such actual relationship or order between the components.

[0026] The utility model provides a cell screen, including screen 1 and screen pipe, screen 1 is arranged in screen pipe bottom, screen pipe includes connecting body 2 and support 3, the bottom of connecting body 2 is equipped with the clamping piece 4 detachably connected with connecting body 2, the top of support 3 is equipped with the clamping groove 5, the clamping piece 4 and clamping groove 5 form interference fit, the inside of clamping piece 4 is equipped with detachable filter screen 6, by adopting above technical scheme, the cell screen is divided into the connecting body 2 for connecting external parts and the support 3 for supporting the centrifugal tube, and the connecting body 2 and support 3 are enhanced the connection tightness between each other through the interference fit between clamping piece 4 and clamping groove 5, when using different specifications of centrifugal tube, just remove support 3 and switch other specifications of support 3, the detachable filter screen 6 in the inside of clamping piece 4 can also be replaced according to the requirement, for example, the different specifications such as the different pore size, filter screen area, etc., filter screen 6 can preliminarily filter the impurities in the suspension when extracting cell suspension to improve the filter screen filtering effect.

[0027] Further, the inside of the connecting body 2 is provided with a fixing piece 7 for fixing the clamping piece 4. By adopting the above technical scheme, the fixing piece 7 is used for fixing the detachable clamping piece 4, further enhancing the connection strength between the connecting body 2 and the support 3.

[0028] Further, the lower side of the support 3 is provided with a connecting plate 8 for connecting external connecting pieces, and the connecting plate 8 is provided with a connecting groove 9. By adopting the above technical scheme, the lower side of the support 3 is provided with the connecting plate 8, and the connecting plate 8 is provided with the connecting groove 9, the connecting plate 8 and the bottom end of the support 3 are used for connecting the centrifugal tube and fixing it between the connecting plate 8 and the support 3, and the connecting groove 9 can be used as a force point of the hand during installation, which is more ergonomic.

[0029] Further, the shape of the support 3 is funnel-shaped, and the shape of the connecting body 2 is cylindrical, and the maximum cross-sectional diameter of the support 3 is the same as the cross-sectional diameter of the connecting body 2. By adopting the above technical scheme, the shapes of the support 3 and the connecting body 2 are matched, and the cross-sectional area of the upper part of the connecting body 2 is greater than or equal to the cross-sectional area of the lower part of the support 3, which conforms to the conventional shape design of the screen 1, and the overall profile conforms to its own effect.

[0030] Further, the outside of the support 3 is provided with a plurality of support plates 10. By adopting the above technical scheme, the outside of the support 3 is provided with the support plates 10, and the screen pipe as a whole can be fixed at a specified position through the support plates 10, and effective fixation can be formed through the support plates 10 during cell experiments, so as to prevent the centrifugal tube from shaking and causing solution to splash out, thereby avoiding unnecessary waste and improving safety.

[0031] Further, the connecting body 2 is provided with anti-skid lines 11 on the outer side, which further improves the stability of the whole, and the anti-skid lines 11 can improve the friction coefficient on the contact surface when the connecting body 2 is gripped by external equipment or hands, effectively preventing slipping.

[0032] Further, the filter screen 6 is made of nylon material, and the material of the screen 1 is stainless steel, polycarbonate or polyester. By adopting the above technical scheme, the filter screen 6 adopts nylon woven material convenient to clean, the nylon material has high strength and can support large pressure, and the filter screen 6 adopts a unique edge covering technology to effectively prevent needle leakage. The screen 1 is made of stainless steel, polycarbonate or polyester material. The stainless steel screen has high durability and corrosion resistance and can be used in various environments. The polycarbonate or polyester has good biocompatibility and is suitable for some test scenes with high requirements for cell activity. Neither the filter screen 6 nor the screen 1 is limited to the above materials, and it is feasible to select other reasonable materials according to the experimental content.

[0033] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any common changes and replacements within the technical scheme of the present application should be included in the protection scope of the present application.

Claims

1. A cell sieve, comprising a sieve (1) and a sieve tube, wherein the sieve (1) is disposed on the bottom surface of the sieve tube, characterized in that, The screen tube includes a connector (2) and a support (3). The bottom of the connector (2) is provided with a clip (4) that can be detachably connected to the connector (2). The top of the support (3) is provided with a slot (5). The clip (4) and the slot (5) form an interference fit. The inner side of the clip (4) is provided with a detachable filter screen (6).

2. The cell sieve according to claim 1, characterized in that, The inner side of the connector (2) is provided with a fastener (7) for fixing the clip (4).

3. A cell sieve according to claim 1, characterized in that, The support (3) is provided with a connecting plate (8) for connecting external connectors below it, and the connecting plate (8) is provided with a connecting groove (9).

4. A cell sieve according to claim 1, characterized in that, The support (3) is funnel-shaped, and the connector (2) is cylindrical. The maximum cross-sectional diameter of the support (3) is the same as that of the connector (2).

5. A cell sieve according to claim 1, characterized in that, The support body (3) has several support plates (10) on its outer side.

6. A cell sieve according to claim 1, wherein the outer side of the connector (2) is provided with anti-slip texture (11).

7. A cell sieve according to claim 1, wherein the filter screen (6) is made of nylon material, and the sieve (1) is made of stainless steel, polycarbonate or polyester.

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