Centrifugal equipment for blood treatment
By introducing automatic clamping and airbag fixation technology into the blood centrifugation equipment, the problem of low test tube retrieval efficiency in existing equipment has been solved, and a highly efficient and safe blood sample separation process has been achieved.
Patent Information
- Application Number
- CN202520465552.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing blood centrifugation equipment is inefficient when removing test tubes and is inconvenient to operate manually, making it difficult to efficiently complete the separation of blood samples.
A centrifuge device comprising a drive tank, a micro motor, a bidirectional lead screw, a lifting frame, and an air bladder ring was designed. The device automates the operation of test tubes through automatic clamping and air bladder fixation, ensuring stability and efficient removal during the centrifugation process.
It enables automated clamping and fixing of blood sample tubes, improves the efficiency of the centrifugation process, avoids the inconvenience of manual operation, and ensures the safety and synchronous rotation of the tubes.
Smart Images

Figure CN223970135U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of centrifuge equipment technology, specifically a centrifuge equipment for blood processing. Background Technology
[0002] Blood centrifugation is a routine step before biochemical testing. Its main purpose is to separate the solid components (mainly red blood cells and white blood cells) from the liquid components (plasma) in the blood. Red blood cells occupy a large volume in the blood and contain various substances that can affect the results of biochemical tests (such as hemoglobin). Therefore, separating red blood cells from plasma by centrifugation can remove these interfering factors and improve the accuracy and reliability of biochemical tests.
[0003] After centrifuging blood samples using centrifuge equipment, the blood test tubes need to be manually removed. Since the test tubes are embedded in the equipment with only the opening protruding, it is very inconvenient to remove them manually. Moreover, the test tubes need to be removed one by one, which is inefficient. Therefore, improvements are urgently needed. Utility Model Content
[0004] The purpose of this invention is to provide a centrifuge device for blood processing to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifuge device for blood processing, comprising a main body, a centrifuge tank, a centrifuge seat, a pressure cap, and arc-shaped clamps. The centrifuge tank is disposed inside the main body, and the centrifuge seat is mounted inside the centrifuge tank via bearings. A first motor is mounted at the bottom of the main body, and the output end of the first motor is fixedly connected to the centrifuge seat. Sample test tubes are disposed in the test tube slots inside the centrifuge seat. A cover plate is disposed at the top of the main body, and the pressure cap is mounted at the bottom end of the cover plate via bearings. The top ends of the sample test tubes extend into the positioning grooves at the bottom end of the pressure caps. The arc-shaped clamps are disposed on both sides inside the positioning grooves. A drive groove is disposed above the positioning grooves, and a bidirectional lead screw is mounted at the output end of a micro motor inside the drive groove.
[0006] Preferably, a lifting frame is provided on one side of the main body of the device, and a second motor is installed at the bottom of the lifting frame. A lifting screw is installed at the output end of the second motor, and guide rods are fixed inside the lifting frame on both sides of the lifting screw.
[0007] Preferably, a cross arm is fixed to the top of the cover plate, and one end of the cross arm extends into the interior of the lifting frame and is threadedly connected to the lifting screw, and one end of the cross arm is slidably sleeved with the guide rod.
[0008] Preferably, an air bladder groove is provided on the inner wall of the test tube groove, and an air bladder ring is adhered inside the air bladder groove.
[0009] Preferably, an inflation chamber is provided at the center of the centrifuge seat, and an air pump is installed inside the inflation chamber. The output end of the air pump is connected to the air bag ring through an air supply pipe.
[0010] Preferably, a pressure relief pipe is installed at the top of the gas pipeline, and a pressure relief valve is installed inside the pressure relief pipe.
[0011] Preferably, rollers are installed at the corners of the bottom of the centrifuge seat, and the rollers make rolling contact with the annular groove at the bottom of the centrifuge tank.
[0012] Preferably, a slot is provided at the edge of the top of the centrifuge seat, and a locking block is fixed at the bottom of the pressure cap at the slot position, with the locking block and the slot cooperating with each other.
[0013] Preferably, a slider is threaded onto the outer wall of the bidirectional lead screw, and the slider is fixedly connected to the arc-shaped clamping block via an L-shaped clamping rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] The micro motor inside the drive slot drives the bidirectional lead screw to rotate, causing the slider to move along the bidirectional lead screw and drive the arc-shaped clamping block through the L-shaped clamping rod to clamp the sample tube. Then, the second motor drives the lifting lead screw to rotate in the opposite direction, causing the horizontal arm to move up along the guide rod, which causes the cover plate to move up the pressure cap, thus clamping the sample tube above the main body of the device. This design not only realizes the function of automatically clamping the sample tube, which is more convenient than manual handling, but also allows all the sample tubes to be taken out at once, making it more efficient.
[0016] Start the air pump to inflate the air bladder ring inside the air bladder groove through the air supply tube. The air bladder ring expands and tightly wraps around the sample tube, fixing the sample tube in place and preventing it from shaking. This allows the centrifuge seat to rotate synchronously with the sample tube during centrifugation, and this fixing method will not damage the sample tube. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0018] Figure 2 This is an enlarged structural schematic diagram of the centrifuge base of this utility model;
[0019] Figure 3 This is an enlarged schematic diagram of the cap structure of this utility model;
[0020] Figure 4 This is a top-view enlarged structural diagram of the arc-shaped clamping block of this utility model;
[0021] Figure 5This is a side view enlarged structural schematic diagram of the lifting frame of this utility model.
[0022] In the diagram: 1. Main body of the device; 2. First motor; 3. Centrifuge tank; 4. Centrifuge seat; 5. Test tube tank; 6. Sample test tube; 7. Cover plate; 8. Cap; 9. Lifting frame; 10. Cross arm; 11. Ring groove; 12. Roller; 13. Airbag groove; 14. Airbag ring; 15. Inflation chamber; 16. Air pump; 1601. Air supply pipe; 17. Pressure relief pipe; 18. Pressure relief valve; 19. Slot; 20. Block; 21. Positioning slot; 22. Arc-shaped clamp; 23. Drive slot; 24. Micro motor; 25. Bidirectional lead screw; 26. Slider; 27. L-shaped clamp; 28. Second motor; 29. Lifting lead screw; 30. Guide rod. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] Please see Figure 1-5 The present invention provides an embodiment of a blood processing centrifugation device, comprising a device body 1, a centrifugation tank 3, a centrifugation seat 4, a pressure cap 8, and an arc-shaped clamping block 22. The centrifugation tank 3 is disposed inside the device body 1, and the centrifugation seat 4 is mounted inside the centrifugation tank 3 via bearings. A first motor 2 is installed at the bottom of the device body 1, and the output end of the first motor 2 is fixedly connected to the centrifugation seat 4. Sample test tubes 6 are disposed in the test tube slots 5 inside the centrifugation seat 4.
[0026] The top of the main body 1 is provided with a cover plate 7, and the pressure cap 8 is installed at the bottom of the cover plate 7 by bearings. The top of the sample tubes 6 all extend into the positioning groove 21 at the bottom of the pressure cap 8. The arc-shaped clamps 22 are all set on both sides inside the positioning groove 21. A drive groove 23 is provided above the positioning groove 21, and a bidirectional lead screw 25 is installed at the output end of the micro motor 24 inside the drive groove 23.
[0027] A lifting frame 9 is provided on one side of the main body 1 of the device, and a second motor 28 is installed at the bottom of the lifting frame 9. A lifting screw 29 is installed at the output end of the second motor 28, and guide rods 30 are fixed inside the lifting frame 9 on both sides of the lifting screw 29.
[0028] A cross arm 10 is fixed to the top of the cover plate 7, and one end of the cross arm 10 extends into the interior of the lifting frame 9 and is threadedly connected to the lifting screw 29. One end of the cross arm 10 is slidably sleeved with the guide rod 30.
[0029] Specifically, the sample tube 6 is placed in the tube slot 5 inside the centrifuge seat 4, and the second motor 28 is started to drive the lifting screw 29 to rotate, so that the horizontal arm 10 moves down along the guide rod 30 and moves the cover plate 7 down to the top of the device body 1. The cover plate 7 moves the pressure cap 8 down to the inside of the device body 1 and presses it on the top of the centrifuge seat 4. The locking block 20 at the bottom of the pressure cap 8 is locked into the locking groove 19 at the top of the centrifuge seat 4, and the top of the sample tube 6 extends into the positioning groove 21 at the bottom of the pressure cap 8.
[0030] The first motor 2 drives the centrifuge seat 4 to rotate, centrifuging the blood sample inside the sample tube 6. After centrifugation, the pressure relief valve 18 is opened to allow the gas inside the airbag ring 14 to be discharged through the pressure relief pipe 17. The micro motor 24 inside the drive groove 23 drives the bidirectional lead screw 25 to rotate, causing the slider 26 to move along the bidirectional lead screw 25 and drive the arc-shaped clamping block 22 through the L-shaped clamping rod 27 to clamp the sample tube 6. Then, the second motor 28 drives the lifting lead screw 29 to rotate in the opposite direction, causing the horizontal arm 10 to move upward along the guide rod 30, causing the cover plate 7 to move the pressure cap 8 upward, thus clamping the sample tube 6 above the main body 1 of the device. This design not only realizes the function of automatically clamping the sample tube 6, which is more convenient than manual picking, but also allows all the sample tubes 6 to be taken out at once, which is more efficient.
[0031] An air bladder groove 13 is provided on the inner wall of the test tube trough 5, and an air bladder ring 14 is adhered inside the air bladder groove 13.
[0032] An inflation chamber 15 is provided at the center of the centrifuge seat 4, and an air pump 16 is installed inside the inflation chamber 15. The output end of the air pump 16 is connected to the air bag ring 14 through an air supply pipe 1601.
[0033] A pressure relief pipe 17 is installed at the top of the gas pipeline 1601, and a pressure relief valve 18 is installed inside the pressure relief pipe 17.
[0034] Specifically, the next step is to start the air pump 16 to inflate the air bag ring 14 inside the air bag groove 13 through the air supply pipe 1601. The air bag ring 14 expands and tightly wraps the sample tube 6, fixing the sample tube 6 and preventing it from shaking. This makes it easier for the centrifuge seat 4 to rotate synchronously with the sample tube 6 during centrifugation. Moreover, this fixing method will not damage the sample tube 6.
[0035] Rollers 12 are installed at the corners of the bottom of the centrifuge base 4, and the rollers 12 are in rolling contact with the annular groove 11 at the bottom of the centrifuge tank 3.
[0036] Each centrifuge base 4 has a slot 19 at the edge of its top end, and a block 20 is fixed to the bottom of the cover 8 at the slot 19. The block 20 and the slot 19 cooperate with each other.
[0037] A slider 26 is threaded onto the outer wall of the bidirectional lead screw 25, and the slider 26 is fixedly connected to the arc-shaped clamp 22 via an L-shaped clamp 27.
[0038] In this embodiment, the following steps are taken during use: First, the sample tube 6 is placed in the tube slot 5 inside the centrifuge seat 4. The second motor 28 is started to drive the lifting screw 29 to rotate, causing the horizontal arm 10 to move down along the guide rod 30 and move the cover plate 7 down to the top of the device body 1. The cover plate 7 then moves the pressure cap 8 down into the device body 1 and presses it against the top of the centrifuge seat 4. The locking block 20 at the bottom of the pressure cap 8 is engaged in the locking groove 19 at the top of the centrifuge seat 4, and the top of the sample tube 6 extends into the positioning groove 21 at the bottom of the pressure cap 8. Next, the air pump 16 is started to inflate the air bag ring 14 inside the air bag slot 13 through the air supply pipe 1601. The air bag ring 14 expands and tightly wraps the sample tube 6, fixing it in place and preventing it from shaking. This facilitates the synchronous rotation of the centrifuge seat 4 and the sample tube 6 during centrifugation, and this fixing method does not cause any issues. The sample tube 6 is damaged. Then, the first motor 2 drives the centrifuge seat 4 to rotate and centrifuge the blood sample inside the sample tube 6. After centrifugation, the pressure relief valve 18 is opened to allow the gas inside the airbag ring 14 to be discharged through the pressure relief pipe 17. The micro motor 24 inside the drive groove 23 drives the bidirectional lead screw 25 to rotate, causing the slider 26 to move along the bidirectional lead screw 25 and drive the arc-shaped clamping block 22 through the L-shaped clamping rod 27 to clamp the sample tube 6. Then, the second motor 28 drives the lifting lead screw 29 to rotate in the opposite direction, causing the horizontal arm 10 to move up along the guide rod 30, causing the cover plate 7 to move up the pressure cap 8, thus clamping the sample tube 6 above the main body 1 of the device. This design not only realizes the function of automatically clamping the sample tube 6, which is more convenient than manual picking, but also allows all the sample tubes 6 to be picked up at once, which is more efficient.
[0039] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
Claims
1. A centrifugal apparatus for blood treatment, characterized in that, The utility model provides a centrifugal device, including device body (1), centrifugal tank (3), centrifugal seat (4), gland (8) and arc clamping block (22), centrifugal tank (3) is arranged in the inside of device body (1), centrifugal seat (4) is installed in the inside of centrifugal tank (3) through bearing, the bottom of device body (1) is installed with first motor (2), and the output end of first motor (2) is fixedly connected with centrifugal seat (4), all be provided with sample test tube (6) in test tube groove (5) of the inside of centrifugal seat (4), the top of device body (1) is provided with cover plate (7), gland (8) is installed in the bottom of cover plate (7) through bearing, the top of sample test tube (6) all extends to the positioning groove (21) in the bottom of gland (8), arc clamping block (22) all are provided in both sides in the inside of positioning groove (21), the top of positioning groove (21) is provided with drive groove (23), and the output end of micro motor (24) in drive groove (23) is installed with bidirectional screw rod (25).
2. A centrifugal apparatus for blood treatment according to claim 1, characterized in that: One side of device body (1) is provided with elevator frame (9), and the bottom of elevator frame (9) is installed with second motor (28), and the output end of second motor (28) is installed with lifting screw rod (29), the inside of elevator frame (9) is fixed with guide rod (30) in both sides of lifting screw rod (29).
3. A centrifugal apparatus for blood treatment according to claim 2, characterized in that: The top of cover plate (7) is fixed with cross arm (10), and one end of cross arm (10) extends to the inside of elevator frame (9) and is threadedly connected with lifting screw rod (29), and one end of cross arm (10) is slidably connected with guide rod (30).
4. A centrifugal apparatus for blood treatment according to claim 1, characterized in that: Air bag groove (13) is arranged on the inner wall of test tube groove (5), and air bag ring (14) is adhered in the inside of air bag groove (13).
5. A centrifugal apparatus for blood treatment according to claim 4, characterized in that: Inflatable cavity (15) is arranged at the center position of centrifugal seat (4), air pump (16) is installed in the inside of inflatable cavity (15), and the output end of air pump (16) is communicated with air bag ring (14) through gas delivery pipe (1601).
6. A centrifugal apparatus for blood treatment according to claim 5, characterized in that: Pressure relief pipe (17) is installed at the top of gas delivery pipe (1601), and pressure relief valve (18) is installed in the inside of pressure relief pipe (17).
7. A centrifugal apparatus for blood treatment according to claim 1, characterized in that: Roller (12) is installed at the corner position of the bottom of centrifugal seat (4), and roller (12) is in rolling contact with annular groove (11) on the bottom of centrifugal tank (3).
8. A centrifugal apparatus for blood treatment according to claim 1, characterized in that: Clamping groove (19) is arranged at the edge position of the top of centrifugal seat (4), and clamping block (20) is fixed at the bottom of gland (8) at the position of clamping groove (19), and clamping block (20) is matched with clamping groove (19).
9. A centrifugal apparatus for blood treatment according to claim 1, characterized in that: Sliding block (26) is threadedly connected to the outer wall of bidirectional screw rod (25), and sliding block (26) is fixedly connected with arc clamping block (22) through L-shaped clamping rod (27).