Centrifugal device for blood separation

Abstract

The utility model relates to the field of medical equipment, and discloses a centrifugal device for blood separation, which comprises a centrifugal machine, a centrifugal disc is arranged in the centrifugal machine, a placing groove is arranged at the top of the centrifugal disc, a knob is rotatably connected to the outer wall of the centrifugal disc, a screw rod is fixedly connected to the end part of the knob, and the end part of the screw rod is fixedly connected with a screw rod. An adjusting seat is in threaded connection with the outer wall of the screw rod, a test tube rack is arranged at the top of the adjusting seat, a supporting plate is fixedly connected to the bottom of the test tube rack, a positioning hole is formed in the surface of the supporting plate, a groove is formed in the top of the adjusting seat, and an electromagnetic block is fixedly connected to the inner wall of the groove; the inner wall of the adjusting seat is slidably connected with a supporting rod, and the outer wall of the supporting rod is sleeved with a spring. According to the blood sample centrifugal device, by arranging the structures such as the containing groove, the rotary knob and the screw rod, the centrifugal force can be adjusted according to the requirements of different blood samples while batch test tubes are conveniently taken and placed, and the centrifugal efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment, and in particular to a centrifuge device for blood separation. Background Technology

[0002] Blood needs to be centrifuged primarily to separate its different components for subsequent medical testing, clinical treatment, and biomedical research. Centrifugation separates components such as plasma, serum, red blood cells, white blood cells, and platelets, facilitating individual testing of these specific components. For example, testing blood lipids, blood glucose, and clotting factors in plasma, and liver and kidney function indicators in serum. Blood separation is performed by using test tubes to hold the blood for centrifugation.

[0003] A search revealed Chinese Patent Publication No. CN219324321U, which discloses a centrifugal blood separation device. By adding two symmetrically installed closing and reinforcing devices to the outer wall of the centrifugal separator and the front end of the separator cover, the two closing and reinforcing devices can be used to reinforce the closed separator cover after it is closed to the top of the centrifugal separator, so that the separator cover can be closed more firmly and stably to the top of the centrifugal separator, avoiding leakage caused by incomplete closure.

[0004] In the above technical solution, the sealing and reinforcement device with the added cover support is used to increase the stability of the centrifugation operation and avoid leakage. However, after blood is placed in the test tube, the test tube is sealed with a nut. During the centrifugation process, it is difficult to handle multiple sets of test tubes in batches. At the same time, in a single centrifugation operation, it is difficult to adjust the centrifugal force for different batches of blood sample test tubes, which reduces the centrifugation efficiency and effect. Therefore, a centrifugation device for blood separation is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a centrifuge device for blood separation, which aims to improve the problem that existing centrifuge devices for blood separation cannot adjust the centrifugal force of different batches of test tubes during a single centrifugation operation, thus reducing the centrifugation effect.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a centrifuge device for blood separation, comprising a centrifuge, wherein a centrifuge disc is provided inside the centrifuge, a placement groove is provided on the top of the centrifuge disc, a knob is rotatably connected to the outer wall of the centrifuge disc, a screw is fixedly connected to the end of the knob, an adjusting seat is threadedly connected to the outer wall of the screw, a test tube rack is provided on the top of the adjusting seat, a support plate is fixedly connected to the bottom of the test tube rack, a positioning hole is provided on the surface of the support plate, a groove is provided on the top of the adjusting seat, an electromagnetic block is fixedly connected to the inner wall of the groove, a support rod is slidably connected to the inner wall of the adjusting seat, a spring is sleeved on the outer wall of the support rod, and a magnetic ring is fixedly connected to the end of the spring.

[0007] As a further description of the above technical solution:

[0008] The bottom of the adjusting seat is in contact with the inner wall of the placement groove, and the end of the screw away from the knob is rotatably connected to the inner wall of the placement groove.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the test tube rack is adapted to the inner wall of the placement slot.

[0011] As a further description of the above technical solution:

[0012] The support rod passes through the adjusting seat, and the outer wall of the support rod is adapted to the inner wall of the positioning hole.

[0013] As a further description of the above technical solution:

[0014] The end of the spring furthest from the magnetic ring is fixedly connected to the inner wall of the groove.

[0015] As a further description of the above technical solution:

[0016] The centrifugal disc has an air inlet at its bottom and a fixed plate is fixedly connected to the bottom of the centrifugal disc. A heating tube is fixedly connected to the inner wall of the fixed plate. A transmission hole is opened at the top of the fixed plate. A through hole is opened on the circumferential surface of the fixed plate. An air-gathering ring is provided on the outer wall of the fixed plate. An air outlet is opened on the inner surface of the air-gathering ring. An air pump is fixedly connected to the inner wall of the air-gathering ring through a pipe.

[0017] As a further description of the above technical solution:

[0018] The wind-gathering ring is fitted onto the outer wall of the fixed plate.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the air pump is fixedly connected to the outer wall of the centrifuge.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting up a placement groove, knob, screw, test tube rack, support plate, adjustment seat, electromagnetic block, support rod and other structures, the test tube rack is placed inside the centrifuge plate and limited, and the distance of the test tube rack from the center of the centrifuge plate can be adjusted, which facilitates the handling of batch test tubes, and the centrifugation force can be adjusted according to the needs of different blood samples, thereby improving centrifugation efficiency.

[0023] 2. In this utility model, by setting up structures such as an air inlet, a fixed plate, a transmission hole, a heating tube, a through hole, an air-gathering ring, and an air pump, it is possible to draw in outside air, heat it, and then transfer it to the inside of the placement tank to contact the test tube, providing low-temperature compensation for the blood sample and avoiding the risk of reduced centrifugation effect in a low-temperature environment. Attached Figure Description

[0024] Figure 1 This is a top view schematic diagram of the main structure of a centrifuge device for blood separation proposed in this utility model;

[0025] Figure 2 This is a top view of a partial structural separation of a centrifuge device for blood separation proposed in this utility model;

[0026] Figure 3 This is a bottom view of a partial structural separation of a centrifuge device for blood separation proposed in this utility model;

[0027] Figure 4 This is a top view schematic diagram of the centrifuge disc structure of a centrifuge device for blood separation proposed in this utility model;

[0028] Figure 5 This is a bottom view of the adjustment seat and test tube rack structure of a centrifuge device for blood separation proposed in this utility model;

[0029] Figure 6 This is a top view schematic diagram of the adjustment seat of a centrifuge device for blood separation proposed in this utility model.

[0030] Legend:

[0031] 1. Centrifuge; 2. Centrifuge tray; 3. Placement slot; 4. Knob; 5. Screw; 6. Adjustment seat; 7. Test tube rack; 8. Support plate; 9. Positioning hole; 10. Groove; 11. Electromagnetic block; 12. Magnetic ring; 13. Support rod; 14. Spring; 15. Air inlet; 16. Fixed plate; 17. Transfer hole; 18. Heating tube; 19. Through hole; 20. Air concentrator ring; 21. Air outlet; 22. Air pump. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3 This utility model provides an embodiment of a centrifugation device for blood separation, including a centrifuge 1. The centrifuge 1 has a centrifuge disc 2 inside, and a drive motor is provided at the bottom of the centrifuge disc 2 to drive the centrifuge disc 2 to rotate. The top of the centrifuge disc 2 has a placement groove 3, and there are several groups of placement grooves 3, which are arranged in a circular array with the center point of the centrifuge disc 2 as the axis of symmetry. A knob 4 is rotatably connected to the outer wall of the centrifuge disc 2, and a screw 5 is fixedly connected to the end of the knob 4. An adjustment seat 6 is threadedly connected to the outer wall of the screw 5. A test tube rack 7 is provided on the top of the adjustment seat 6. The surface of the test tube rack 7 has holes that are evenly distributed for placing test tubes containing blood.

[0034] Reference Figures 4-6 The bottom of the test tube rack 7 is fixedly connected to a support plate 8. Each set of test tube racks 7 has a support plate 8 on both sides, which can provide support when the test tube rack 7 is placed. The surface of the support plate 8 is provided with positioning holes 9. The top of the adjusting seat 6 is provided with a groove 10. An electromagnetic block 11 is fixedly connected to the inner wall of the groove 10. A support rod 13 is slidably connected to the inner wall of the adjusting seat 6. Each set of adjusting seats 6 has a set of support rods 13 on both sides. Each set of support rods 13 has a set of magnetic rings 12 at one end near the electromagnetic block 11. When the electromagnetic block 11 is energized, it can interact with the magnetic rings. 12 generates magnetic attraction, causing the support rod 13 to retract from the outside of the adjusting seat 6 into the inside of the groove 10. The outer wall of the support rod 13 is fitted with a spring 14, and the end of the spring 14 is fixedly connected to a magnetic ring 12. The bottom of the adjusting seat 6 is in contact with the inner wall of the placement groove 3. The end of the screw 5 away from the knob 4 is rotatably connected to the inner wall of the placement groove 3. The outer wall of the test tube rack 7 is adapted to the inner wall of the placement groove 3. The support rod 13 passes through the adjusting seat 6. The outer wall of the support rod 13 is adapted to the inner wall of the positioning hole 9. The end of the spring 14 away from the magnetic ring 12 is fixedly connected to the inner wall of the groove 10.

[0035] Reference Figures 1-3The centrifugal disc 2 has an air inlet 15 at its bottom, which extends into the placement groove 3. A fixed disc 16 is fixedly connected to the bottom of the centrifugal disc 2. Heating tubes 18 are fixedly connected to the inner wall of the fixed disc 16. Several groups of heating tubes 18 are arranged and evenly distributed in the cavity of the fixed disc 16. A transmission hole 17 is provided at the top of the fixed disc 16. Through holes 19 are provided on the circumferential surface of the fixed disc 16. An air-gathering ring 20 is provided on the outer wall of the fixed disc 16. The interior of the air-gathering ring 20 is hollow. The centrifuge 1 is equipped with an air-concentrating ring 20, which is fitted onto the outer wall of the fixed plate 16. An air vent 21 is provided on the inner surface of the air-concentrating ring 20. The center point of the air vent 21 and the through hole 19 are on the same horizontal line. The air inside the air-concentrating ring 20 is transmitted to the inside of the fixed plate 16 through the air vent 21 and the through hole 19. The air-concentrating ring 20 is fixed in the inner wall of the centrifuge 1. An air pump 22 is fixedly connected to the inner wall of the air-concentrating ring 20 through a pipe. The outer wall of the air pump 22 is fixedly connected to the outer wall of the centrifuge 1.

[0036] Working principle: Place the test tube containing blood into the test tube rack 7, align the test tube rack 7 with the placement slot 3, and when the two sets of support plates 8 at the bottom of the test tube rack 7 are in contact with the sides of the adjusting seat 6, the bottom of the support plates 8 will exert a squeezing force on the support rod 13, causing it to enter the groove 10. The spring 14 will also be stretched accordingly. When the bottom of the test tube rack 7 is in contact with the top of the adjusting seat 6, the positioning hole 9 is aligned with the center point of the support rod 13. When the support rod 13 loses its force, the spring 14 returns to its elasticity, causing it to exit through the positioning hole. The test tube rack 7 is positioned by extending it through the inner part of the centrifuge tray 2. After the first set of test tube racks 7 is fixed inside the placement slot 3 of the centrifuge tray 2, the remaining test tube racks 7 are fixed by repeating the above operation. After each set of test tube racks 7 is fixed inside the centrifuge tray 2, the knob 4 is turned in sequence as needed. The knob 4 controls the forward and reverse rotation of the screw 5, so that the screw 5 drives the adjusting seat 6 to move inside the placement slot 3, so that it moves the test tube rack 7 closer to or away from the center of the centrifuge tray 2. After the adjustment is completed, the centrifuge 1 is... With the cover closed, the motor starts and drives the fixed plate 16 to rotate, and the centrifuge plate 2 rotates accordingly. During centrifugation, the air pump 22 can be turned on intermittently to draw in filtered air, which is then transmitted through the pipeline to the air-collecting ring 20. The air enters the fixed plate 16 through the alignment of the air vent 21 and the through hole 19. At this time, the heating tube 18 is already in the on state. After the air is relatively heated by the heating tube 18, it is transmitted to the air inlet 15 through the transmission hole 17. The hot air is then transmitted back to the placement slot 3 to contact the test tubes and perform low-temperature compensation to prevent the blood sample temperature from being too low and affecting the separation effect. After the centrifugation is completed, the centrifuge 1 is turned on and the electromagnetic block 11 is activated. After the electromagnetic block 11 is energized and becomes magnetic, the two sets of magnetic rings 12 are attracted to each other by magnetic force, causing the support rod 13 to enter the groove 10. After the positioning hole 9 is released from the limit of the support rod 13, the test tubes are taken out from the placement slot 3 from the test tube rack 7, realizing the batch handling of test tubes and changing the magnitude of the centrifugal force on the test tubes, thereby meeting the needs of different blood sample separation.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifugal device for blood separation, comprising a centrifuge (1), the inside of which is provided with a centrifugal disc (2), characterized in that: The top of the centrifugal disc (2) is provided with a placing groove (3), the outer wall of the centrifugal disc (2) is rotatably connected with a knob (4), the end of the knob (4) is fixedly connected with a screw rod (5), the outer wall of the screw rod (5) is threadedly connected with an adjusting seat (6), the top of the adjusting seat (6) is provided with a test tube rack (7), the bottom of the test tube rack (7) is fixedly connected with a supporting plate (8), the surface of the supporting plate (8) is provided with a positioning hole (9), the top of the adjusting seat (6) is provided with a groove (10), the inner wall of the groove (10) is fixedly connected with an electromagnetic block (11), the inner wall of the adjusting seat (6) is slidably connected with a supporting rod (13), the outer wall of the supporting rod (13) is sleeved with a spring (14), and the end of the spring (14) is fixedly connected with a magnetic ring (12).

2. A centrifuge device for blood separation according to claim 1, characterized in that: The bottom of the adjusting seat (6) is attached to the inner wall of the placing groove (3), and the end, away from the knob (4), of the screw rod (5) is rotatably connected to the inner wall of the placing groove (3).

3. A centrifuge apparatus for blood separation according to claim 1, wherein: The outer wall of the test tube rack (7) is adapted to the inner wall of the placing groove (3).

4. A centrifuge apparatus for blood separation according to claim 1, characterized in that: The supporting rod (13) penetrates the adjusting seat (6), and the outer wall of the supporting rod (13) is adapted to the inner wall of the positioning hole (9).

5. A centrifuge apparatus for blood separation as defined in claim 1, wherein: The end, away from the magnetic ring (12), of the spring (14) is fixedly connected to the inner wall of the groove (10).

6. A centrifuge apparatus for blood separation according to claim 1, characterized in that: The bottom of the centrifugal disc (2) is provided with an air inlet (15), the bottom of the centrifugal disc (2) is fixedly connected with a fixed disc (16), the inner wall of the fixed disc (16) is fixedly connected with a heating pipe (18), the top of the fixed disc (16) is provided with a transmission hole (17), the circumferential surface of the fixed disc (16) is provided with a through hole (19), the outer wall of the fixed disc (16) is provided with a wind collecting ring (20), the inner surface of the wind collecting ring (20) is provided with an air port (21), and the inner wall of the wind collecting ring (20) is fixedly connected with an air pump (22) through a pipeline.

7. A centrifuge apparatus for blood separation according to claim 6, wherein: The wind collecting ring (20) is sleeved on the outer wall of the fixed disc (16).

8. A centrifuge apparatus for blood separation according to claim 6, wherein: The outer wall of the air pump (22) is fixedly connected with the outer wall of the centrifuge (1).

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