Diluting three-stage filtering device for blood cell analysis

Abstract

The utility model belongs to the field of dilution and filtration for blood cell analysis, in particular relates to a dilution three-stage filtration device for blood cell analysis, and aims to solve the problem that although filtration can be carried out through three filter discs on liquid outlet pipes of a mixing box in the prior art, the three filter discs are fixed through an upper connecting disc, a lower connecting disc, bolts and screw caps; in order to solve the problems that in the prior art, in the prior art, when filter discs need to be detached and cleaned, the filter discs need to be detached in sequence, the operation is troublesome, and the efficiency is low, the following scheme is provided that the device comprises a rack, two supporting plates are fixedly arranged at the top of the rack, and the same mixing box used for mixing a blood sample and diluent is fixedly arranged at the tops of the two supporting plates; a discharge pipe is fixedly arranged at the bottom of the mixing box and is communicated with the mixing box, the fixing cover and the filter disc can be fixed through the fixing mechanism, disassembly is convenient, the efficiency is improved, and a blood sample and a diluent can be mixed through the mixing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of blood cell analysis dilution and filtration, in particular to a dilution three-stage filtration device for blood cell analysis. Background Art

[0002] Blood cell diluent is usually an isotonic solution with acid-base buffering effect, appropriate ionic strength and conductivity. Appropriate ionic strength and the same osmotic pressure as plasma can completely maintain the original volume of blood cells for a certain period of time, and the appropriate conductivity can ensure the pulse size corresponding to the cell volume. Diluent is the most commonly used reagent for blood cell analyzers in clinical tests and is a key reagent for completing blood cell classification or counting. Before blood cell analysis, the cleaning solution and diluent cooperate with each other to clean the containers and pipes of the instrument detection unit to reduce the background value of the instrument and avoid the interference of the previous test sample on this test, which is crucial in routine blood tests. In addition, the diluent also plays a role in maintaining the original morphology of white blood cells and platelets, ensuring that the instrument accurately classifies white blood cells. After the preparation of the diluent for blood cell analysis is completed, it needs to be filled. Before filling, a three-stage filtration device needs to be used to remove impurities in the diluent for blood cell analysis and filter it.

[0003] After searching, the patent with announcement number CN220257328U discloses a three-stage filtration device for diluent for blood cell analysis, which includes a vertical plate and a filtering mechanism; the inner walls of the vertical plate are respectively fixedly connected with a first layer, a second layer and a third layer; the filtering mechanism is arranged above the first layer, and the filtering mechanism includes a liquid outlet pipe, a connecting assembly and a control valve, the inner walls of the liquid outlet pipe are respectively provided with a connecting assembly and a control valve, the connecting assembly includes an upper connecting plate, a filter plate is arranged at the bottom of the upper connecting plate, and a lower connecting plate is arranged at the bottom of the filter plate. The three-stage filtration device for diluent for blood cell analysis provided by the utility model solves the problem that the blood sample and the diluent are not mixed sufficiently during use in some current three-stage filtration devices for diluent for blood cell analysis, and the filtering equipment is not easy to clean and replace after filtration, resulting in a reduced service life of the device.

[0004] The technical solution has the following problems:

[0005] Although filtering can be performed through the filter plates on the three mixing box outlet pipes, the three filter plates are fixed by upper connecting plates, lower connecting plates, bolts and nuts. When the filter plates are disassembled and cleaned, they need to be removed one by one, which is troublesome and inefficient. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that although filtering can be performed through the filter discs on the three mixing box outlet pipes, the three filter discs are fixed by an upper connecting disc, a lower connecting disc, bolts and nuts, and the filter discs need to be removed one by one when disassembling and cleaning, which is troublesome and has low efficiency. A dilution three-stage filtration device for blood cell analysis is proposed to solve the problem that the three filter discs are fixed by an upper connecting disc, a lower connecting disc, bolts and nuts, and the filter discs need to be removed one by one when disassembling and cleaning, which is troublesome and has low efficiency.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A dilution three-stage filtering device for blood cell analysis comprises a frame, two support plates are fixedly arranged on the top of the frame, a mixing box for mixing blood samples and diluent is fixedly arranged on the top of the two support plates, a discharge pipe is fixedly arranged at the bottom of the mixing box and the two are connected, a control valve is arranged on the discharge pipe, the bottom end of the discharge pipe passes through the top of the frame, a box for storing diluent is fixedly arranged on one side of the frame, a liquid adding pipe is fixedly arranged on the top of the box and the two are connected, a tightening cover is threadedly connected on the liquid adding pipe, a water pump is fixedly arranged on the top of the box, a second pipe is fixedly arranged at the input port of the water pump, one end of the second pipe is fixedly connected and connected to one side of the box, a first pipe is fixedly arranged at the output port of the water pump, one end of the first pipe is fixedly connected and connected to the top of the mixing box, a feed hopper is fixedly arranged on the top of the mixing box and the two are connected, and three filter discs for three-stage filtration are arranged at the bottom end of the discharge pipe;

[0009] A fixing mechanism, which is arranged on the discharge pipe and is used to fix the three filter discs;

[0010] The mixing mechanism is arranged on the mixing box and is used for mixing the blood sample and the diluent.

[0011] In a possible design, the fixing mechanism includes a fixing cover for fixing the three filter discs, the inner wall of the fixing cover is provided with an internal thread, the discharge pipe is provided with an external thread, the fixing cover is threadedly connected to the discharge pipe, a fixing ring is fixedly sleeved on the discharge pipe, a through hole is provided at the bottom of the fixing cover, and the three filter discs are placed in the fixing cover.

[0012] In one possible design, the mixing mechanism includes a motor, a rotating rod and a plurality of stirring plates. The bottom of the motor is fixedly connected to the top center position of the mixing box, the top of the rotating rod is rotatably connected to the top inner wall of the mixing box, the output end of the motor passes through the top of the mixing box and is fixedly connected to the top of the rotating rod, and the plurality of stirring plates are welded to the rotating rod.

[0013] In a possible design, a plurality of convex strips for increasing the friction of a person's hands to prevent slipping are fixedly provided on the fixed cover, and the plurality of convex strips and the fixed cover are an integrated structure.

[0014] In a possible design, a sealing ring is fixedly provided at the bottom of the fixing ring for improving the sealing performance between the fixing cover and the fixing ring.

[0015] In one possible design, one side of the feed hopper is hinged with a cover body, the top of the cover body is fixedly provided with a handle for facilitating opening of the cover body, an iron sheet is fixedly provided at the bottom of one side of the cover body, and the top of the feed hopper is fixedly provided with a magnet for magnetically fixing the cover body.

[0016] In the present application, when in use, the cover is opened, and the blood sample is added into the mixing box through the feed hopper, and then the cover is closed. The cover can prevent foreign matter from falling into the mixing box from the feed hopper during the mixing process, and the water pump is started. The start of the water pump generates suction, and the diluent in the box is transported to the mixing box through the second pipeline and the first pipeline. After the diluent is added, the motor is started, and the rotation of the motor output end drives the rotation of the rotating rod, and the rotation of the rotating rod drives the rotation of multiple stirring plates, so that the blood sample and the diluent can be mixed. After mixing, the channel of the discharge pipe is opened by the control valve, and the mixed liquid will flow into the fixed cover, and be filtered three times (i.e., three levels) through the three filter discs in the fixed cover, and then discharged through the through hole, wherein the The filter discs can use three filter discs with different sizes of filter holes. When the three filter discs need to be disassembled and replaced, close the control valve and turn the fixed cover by hand to make the fixed cover leave the discharge pipe. After the fixed cover is removed, turn the fixed cover over to pour out the filter disc. In this way, the three filter discs can be disassembled to improve efficiency. Then take a clean filter disc and place the three filter discs in the fixed cover in turn. When the fixed cover is brought to the discharge pipe position, turn the fixed cover to make the fixed cover and the discharge pipe threaded connection, so that the fixed cover can be fixed and the filter disc can be fixed on the discharge pipe. When the fixed pipe is tightened, the top of the fixed pipe will contact the fixed ring, squeeze the sealing ring, cause deformation, and improve the sealing between the fixed ring and the fixed pipe.

[0017] The beneficial effects of the present invention are:

[0018] In the utility model, the three-stage dilution filter device for blood cell analysis is used to place three filter discs in sequence in the fixed cover through a fixing mechanism, and then the fixed cover is brought to the position of the discharge pipe, and the fixed cover is rotated to make the fixed cover and the discharge pipe threadedly connected, so that the fixed cover and the filter disc can be fixed, and it is easy to disassemble, thereby improving efficiency;

[0019] In the utility model, the three-stage dilution filter device for blood cell analysis, through the mixing mechanism, the rotation of the motor output end drives the rotation of the rotating rod, and the rotation of the rotating rod drives the rotation of multiple stirring plates, so that the blood sample and the diluent can be mixed;

[0020] In the utility model, the fixing cover and the filter disc can be fixed by the fixing mechanism, and the disassembly is convenient, thereby improving the efficiency; and the blood sample and the diluent can be mixed by the mixing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of a dilution three-stage filtration device for blood cell analysis proposed by the utility model;

[0022] Figure 2 This is a side view schematic diagram of the structure of a dilution three-stage filtration device for blood cell analysis proposed by the utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of a mixing box of a dilution three-stage filtration device for blood cell analysis proposed by the utility model;

[0024] Figure 4 This is a cross-sectional structural schematic diagram of a fixed cover of a three-stage dilution filter device for blood cell analysis proposed by the utility model;

[0025] Figure 5 This is a partial structural schematic diagram of a dilution three-stage filtration device for blood cell analysis proposed by the utility model.

[0026] In the figure: 1. frame; 2. mixing box; 3. feed hopper; 4. cover body; 5. motor; 6. first pipeline; 7. support plate; 8. water pump; 9. box body; 10. discharge pipe; 11. fixed cover; 12. filter plate; 13. through hole; 14. fixing ring; 15. convex strip; 16. rotating rod; 17. magnet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1

[0029] Reference Figure 1-5A dilution three-stage filtration device comprises: a frame 1, on the top of which two support plates 7 are fixedly installed, the two support plates 7 jointly support a mixing box 2, the main function of the mixing box 2 is to mix blood samples and diluents, and there is a feed hopper 3 on the top of the mixing box 2, through which the blood samples and diluents can be conveniently added to the mixing box 2.

[0030] At the top center of the mixing box 2, we installed a motor 5. The output end of the motor 5 is connected to a rotating rod 16. The rotating rod 16 rotates on the top inner wall of the mixing box 2. A plurality of stirring plates are welded on the rotating rod 16. When the motor 5 is started, the rotating rod 16 and the stirring plates will rotate together, thereby achieving mixing of the blood sample and the diluent.

[0031] In order to facilitate the control of the outflow of the mixed liquid, we installed a discharge pipe 10 at the bottom of the mixing box 2. The discharge pipe 10 is connected to the inside of the mixing box 2. At the same time, the bottom end of the discharge pipe 10 passes through the top of the frame 1. In this way, the mixed liquid can flow out through the discharge pipe 10. On the discharge pipe 10, we also installed a control valve to control the outflow speed and amount of the liquid.

[0032] In addition, a box 9 is installed on one side of the rack 1. This box 9 is used to store the diluent. At the top of the box 9, we set a liquid adding pipe for adding the diluent to the box 9. There is a tightening cap on the liquid adding pipe, which can be closed when not in use to prevent the diluent from leaking.

[0033] In order to transport the diluted liquid to the mixing box 2, we installed a water pump 8 on the top of the box body 9. The input port of the water pump 8 is connected to a second pipe, and the other end of the second pipe is connected to the box body 9. The output port of the water pump 8 is connected to a first pipe 6, and the other end of the first pipe 6 is connected to the top of the mixing box 2. When the water pump 8 is started, the diluted liquid in the box body 9 can be transported to the mixing box 2 through the first pipe 6.

[0034] At the bottom end of the discharge pipe 10, we set up three filter discs 12 for three-stage filtration of the mixed liquid to ensure the purity of the liquid. In order to fix the three filter discs 12, we designed a fixing mechanism, which includes a fixing cover 11. The inner wall of the fixing cover 11 is provided with an internal thread, and the discharge pipe 10 is provided with an external thread. The fixing cover 11 can be connected to the discharge pipe 10 through a thread. A through hole 13 is provided at the bottom of the fixing cover 11, and the three filter discs 12 are placed in the fixing cover 11. In addition, a fixing ring 14 is fixedly sleeved on the discharge pipe 10.

[0035] The present application is used in the field of blood cell analysis dilution and filtration, and can also be used in other fields applicable to the present application.

[0036] Embodiment 2

[0037] refer to Figure 1-5 , based on the improvement of the first embodiment: a three-stage dilution filtration device for blood cell analysis, which is used in the field of dilution filtration of blood cell analysis,

[0038] In order to facilitate personnel to operate the fixed cover 11, we have fixedly set a plurality of convex strips 15 on the fixed cover 11. These convex strips 15 can not only increase the friction of personnel's hands to prevent slipping, but also improve the structural strength of the fixed cover 11. At the same time, a sealing ring is also set at the bottom of the fixing ring 14 to improve the sealing between the fixing cover 11 and the fixing ring 14 to prevent liquid leakage.

[0039] Finally, considering that the feed hopper 3 needs to be closed when not in use to prevent dust and other impurities from entering, we hinged a cover body 4 on one side of the feed hopper 3 through a hinge, and a handle is provided on the top of the cover body 4 to facilitate opening. At the same time, an iron sheet is fixedly set on the bottom of one side of the cover body 4, and correspondingly, a magnet 17 is fixedly set on the top of the feed hopper 3 for magnetically fixing the cover body 4 to ensure the stability of the cover body 4.

[0040] The working principle of the control valve is the same as that of the authorization number CN220257328U, which will not be repeated here. The control valve is a prior art and can be purchased according to needs.

[0041] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 5 and the water pump 8 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dilution three-stage filtration device for blood cell analysis, comprising a frame (1), characterized in that: Two support plates (7) are fixedly arranged on the top of the frame (1); a mixing box (2) for mixing the blood sample and the diluent is fixedly arranged on the top of the two support plates (7); a discharge pipe (10) is fixedly arranged on the bottom of the mixing box (2) and the two boxes are connected; a control valve is arranged on the discharge pipe (10); the bottom end of the discharge pipe (10) passes through the top of the frame (1); a box (9) for storing the diluent is fixedly arranged on one side of the frame (1); a liquid adding pipe is fixedly arranged on the top of the box (9) and the two boxes are connected; the liquid adding pipe A screw-on cover is connected to the upper thread, a water pump (8) is fixedly arranged on the top of the box body (9), a second pipe is fixedly arranged on the input port of the water pump (8), one end of the second pipe is fixedly connected to and communicated with one side of the box body (9), a first pipe (6) is fixedly arranged on the output port of the water pump (8), one end of the first pipe (6) is fixedly connected to and communicated with the top of the mixing box (2), a feed hopper (3) is fixedly arranged on the top of the mixing box (2) and is in communication, and three filter discs (12) for three-stage filtration are arranged at the bottom end of the discharge pipe (10); A fixing mechanism, the fixing mechanism being arranged on the discharge pipe (10) and used for fixing the three filter discs (12); A mixing mechanism is arranged on the mixing box (2) and is used to mix the blood sample and the diluent.

2. A three-stage dilution filter device for blood cell analysis according to claim 1, characterized in that: The fixing mechanism comprises a fixing cover (11) for fixing the three filter discs (12); the inner wall of the fixing cover (11) is provided with an internal thread; the discharge pipe (10) is provided with an external thread; the fixing cover (11) is threadedly connected to the discharge pipe (10); a fixing ring (14) is fixedly sleeved on the discharge pipe (10); a through hole (13) is provided at the bottom of the fixing cover (11); and the three filter discs (12) are all placed in the fixing cover (11).

3. A three-stage dilution filter device for blood cell analysis according to claim 1, characterized in that: The mixing mechanism comprises a motor (5), a rotating rod (16) and a plurality of stirring plates, wherein the bottom of the motor (5) is fixedly connected to the top center position of the mixing box (2), the top of the rotating rod (16) is rotatably connected to the top inner wall of the mixing box (2), the output end of the motor (5) passes through the top of the mixing box (2) and is fixedly connected to the top of the rotating rod (16), and the plurality of stirring plates are welded to the rotating rod (16).

4. A three-stage dilution filter device for blood cell analysis according to claim 2, characterized in that: The fixed cover (11) is fixedly provided with a plurality of convex strips (15) for increasing the friction force of a person's hand to prevent slipping, and the plurality of convex strips (15) and the fixed cover (11) are an integral structure.

5. A three-stage dilution filter device for blood cell analysis according to claim 2, characterized in that: A sealing ring is fixedly arranged at the bottom of the fixing ring (14) for improving the sealing performance between the fixing cover (11) and the fixing ring (14).

6. A three-stage dilution filter device for blood cell analysis according to claim 1, characterized in that: One side of the feed hopper (3) is hingedly connected to a cover body (4); a handle is fixedly provided on the top of the cover body (4) for facilitating opening of the cover body (4); an iron sheet is fixedly provided on the bottom of one side of the cover body (4); and a magnet (17) is fixedly provided on the top of the feed hopper (3) for magnetically attracting and fixing the cover body (4).

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