A separation device for whole blood separation sampling operation

Abstract

The application discloses a separation device for whole blood separation sampling operation and relates to the field of medical apparatuses, which comprises a separation box for support, a sensing module and a control module are internally arranged in the separation box, a bearing rod is rotatably connected to the inner wall of the separation box, four threaded holes are formed in the bottom surface of the separation box, a separation balancing mechanism is arranged in the separation box, and the separation balancing mechanism is arranged on the outer surface of the bearing rod. The separation device for whole blood separation sampling operation can balance the force borne by the multiple collection tubes during whole blood separation, effectively avoids the situation that the centrifugal force borne by the collection tubes is different when the number of the separated collection tubes is odd, avoids the situation that the separated whole blood sample result is wrong due to the difference in the centrifugal force borne by the collection tubes, and further guarantees the accuracy of the separation result of the whole blood sample by the device.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a separation device for whole blood separation and sampling. Background Technology

[0002] Blood tests are a common examination method in medical institutions. First, a whole blood sample needs to be collected from the human body. Then, the components of the whole blood are separated using separation equipment. The indicators after separation are used to assist doctors in diagnosing and treating patients. Whole blood separation refers to the process of separating whole blood into plasma, white blood cell membrane, and red blood cell suspension after centrifugation in a centrifuge. During whole blood separation, each blood component in the mother bag needs to be separated into different daughter bags to complete the blood separation.

[0003] When whole blood separation is required for collected blood samples, medical staff must place the collection tube containing the whole blood sample into the separation device. By starting the device, the centrifugal force during high-speed rotation completes the separation of the whole blood in the collection tube. However, in practice, hospitals often separate whole blood from multiple collection tubes simultaneously to improve efficiency. Existing separation equipment lacks a balancing function during separation. Since the number of collection tubes to be separated can be odd or even, when the number is even, the centrifugal force on each tube is more uniform, resulting in more accurate whole blood sample separation. However, when the number of collection tubes is odd, the difference in centrifugal force may lead to errors in the separated whole blood sample results, affecting the accuracy of the separation equipment. Therefore, we provide a whole blood separation sampling device to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a separation device for whole blood separation sampling, which solves the problem that the existing separation devices do not have a balancing function when separating multiple collection tubes.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a separation device for whole blood separation and sampling, comprising:

[0006] The separation box used for support is prior art, and this application does not further limit the model of the separation box. The separation box is equipped with a sensing module and a control module. Since the separation box is not the main innovative direction of this invention, the sensing module and control module of the separation box are not shown in the accompanying drawings.

[0007] The inner wall of the separation box is rotatably connected to a support rod, which can rotate within the inner wall of the separation box. The bottom surface of the separation box has four threaded holes. The separation box is equipped with a separation balancing mechanism, which is installed on the outer surface of the support rod and can play a balancing role.

[0008] The separation box is equipped with a set of fixing mechanisms inside, which can play a stabilizing role and can fix sampling tubes of different sizes.

[0009] Furthermore, the separation and balancing mechanism includes a fixed block and a set of support arms. The fixed block is fixedly connected to the inner wall of the bearing rod. A connecting line is slidably connected to the inner wall of the fixed block, and the connecting line passes through the fixed block and extends into the interior of the bearing rod. A sliding pad is fixedly connected to the bottom end of the connecting line.

[0010] By adopting the above technical solution, a hemispherical reserved cavity is opened on the upper surface of the fixing block, and the connecting line can slide on the inner wall of the fixing block. As the connecting line moves, it can drive the sliding pad to move.

[0011] Furthermore, the sliding pad is slidably connected to the inner wall of the bearing rod, a spring is fixedly connected to the bottom surface of the sliding pad, the spring is fixedly connected to the inner bottom wall of the bearing rod, and a positioning cylinder is provided on the upper surface of the fixing block.

[0012] By adopting the above technical solution, the sliding pad can slide on the inner wall of the bearing rod. As the sliding pad slides upward, it can stretch the spring. The spring has a small elastic coefficient. A set of reserved grooves are opened on the outer surface of the positioning cylinder, and a set of positioning holes are opened on the upper surface of the bearing rod, and a set of limiting grooves are opened on the outer surface of the bearing rod.

[0013] Furthermore, a counterweight is fixedly connected to the bottom surface of the positioning cylinder, the counterweight is adapted to the fixed block, the connecting line is fixedly connected to the counterweight, a control rod is slidably connected to the inner wall of the positioning cylinder, and a movable pad is fixedly connected to the bottom end of the control rod.

[0014] By adopting the above technical solution, the counterweight is hemispherical in shape and is adapted to the hemispherical reserved cavity opened on the upper surface of the fixed block. As the counterweight moves, it can drive the connecting line to move, and the control rod extends to the inner wall of the positioning cylinder.

[0015] Furthermore, a handle is fixedly connected to the top of the control rod, a second spring is fixedly connected to the upper surface of the movable pad, the second spring is fixedly connected to the inner top wall of the positioning cylinder, a set of transmission rods is hinged to the outer surface of the movable pad, an L-shaped limiting plate is hinged to the outer surface of each transmission rod, a connecting post is rotatably connected to the inner wall of each L-shaped limiting plate, each connecting post is fixedly connected to the inner wall of the positioning cylinder, a set of positioning posts is fixedly connected to the bottom surface of the positioning cylinder, each support arm is fixedly connected to the bearing rod, and a placement cylinder is fixedly connected to the outer surface of each support arm, the positioning cylinder and the placement cylinder are compatible.

[0016] By adopting the above technical solution, the handle allows medical staff to easily control the control rod. The connecting column is fixedly connected to the inner wall of the positioning cylinder through a reserved groove on the outer surface of the positioning cylinder. The positioning column is adapted to the positioning hole on the upper surface of the bearing rod, and the bottom end of the connecting column is adapted to the limiting groove on the outer surface of the bearing rod. By hanging the bottom end of the connecting column in the limiting groove, the positioning cylinder can be limited to the upper surface of the bearing rod. As the movable pad moves downward, it can drive the transmission rod to rotate, thereby driving the connecting column to rotate. As the connecting column rotates, it can disengage from the limiting groove on the outer surface of the bearing rod, thereby engaging the limiting position of the positioning cylinder. The upper surface of the placement cylinder has a positioning hole adapted to the positioning column, and the outer surface of the placement cylinder has a limiting groove adapted to the connecting column. As the bearing rod rotates, it can drive the support arm to rotate, thereby driving the placement cylinder to rotate.

[0017] Furthermore, the fixing mechanism includes a support sleeve and a set of fixing rings. The upper surface of the support sleeve is fixedly connected with symmetrical fixing rods. The outer surfaces of the two fixing rods are slidably connected with fixing cylinders, and the two fixing cylinders are fixedly connected to the placement cylinder.

[0018] By adopting the above technical solution, the frictional resistance between the fixed rod and the fixed cylinder is relatively large, and as the placement cylinder rotates circumferentially, it can drive the support sleeve to rotate circumferentially.

[0019] Furthermore, each of the fixing rings is fixedly connected to the fixing cylinder, and each fixing ring has a symmetrical clamping pad inside. An elastic steel sheet is fixedly connected to the outer surface of each of the two clamping pads, and the elastic steel sheet is fixedly connected to the fixing ring.

[0020] By adopting the above technical solution, when performing whole blood separation on the blood in the collection tube, the collection tube must be inserted into the placement tube and the bottom end must be in contact with the support sleeve. Under the action of the elastic force of the elastic steel sheet, the collection tube can be clamped and fixed by the clamping pad.

[0021] Furthermore, a bottom cover is installed on the bottom surface of the separation box, a motor is installed on the upper surface of the bottom cover, the output end of the motor is fixedly connected to the bottom end of the support rod, a box cover is installed on the upper surface of the separation box, a handle is fixedly connected to the upper surface of the box cover, a control panel is installed on the front of the separation box, and a set of heat dissipation windows are opened on both sides of the separation box.

[0022] By adopting the above technical solution, the bottom cover is installed on the bottom surface of the separation box through screws and threaded holes on the bottom surface of the separation box. The motor is existing technology, and the present invention does not further limit the model of the motor. By starting the motor, the bearing rod can be rotated. The control panel is existing technology, and the present invention does not further limit the model of the control panel. The control panel is electrically connected to the sensing module and control module installed inside the separation box. The motor can be started by using the display panel and control keys on the control panel.

[0023] Furthermore, the bottom surface of the separation box is fitted with a body, the outer surface of the body is fitted with conductive wires, and the outer surface of the body is hinged with symmetrical handles.

[0024] By adopting the above technical solution, the body belongs to the prior art, and the present invention does not further limit the model of the body. By electrically connecting the conductive wire to an external power source, power can be supplied to the device.

[0025] Furthermore, a base is fixedly connected to the bottom surface of the machine body, and four rotating columns are rotatably connected to the bottom surface of the base. Each of the four rotating columns is equipped with a caster wheel, and a nameplate is fixedly connected to the outer surface of the machine body.

[0026] By adopting the above technical solution, the rotating column can rotate on the bottom surface of the base. The movable wheel is an existing technology, and the present invention does not further limit the model of the movable wheel. The movable wheel can move the device relatively conveniently. Since the movable wheel is not the main innovation direction of the present invention, the specific details of the movable wheel are not shown in the accompanying drawings.

[0027] Compared with existing technologies, this separation device for whole blood separation and sampling has the following advantages:

[0028] I. By incorporating a support rod and a separation balancing mechanism, this invention enables the device to balance the forces acting on multiple collection tubes during whole blood separation. This effectively avoids differences in centrifugal forces experienced by the collection tubes when the number of tubes being separated is odd, and also prevents errors in the separated whole blood sample results due to differences in centrifugal forces. This further ensures the accuracy of the whole blood sample separation results from this device.

[0029] II. This invention, through the coordinated arrangement of a placement cylinder, a support sleeve, a fixing rod, a fixing cylinder, a fixing ring, clamping pads, and an elastic steel sheet, enables the device to fix sampling tubes of different sizes. Medical personnel can pull down the support sleeve, thereby causing the fixing rod to slide out of the fixing cylinder until the distance between the placement cylinder and the support sleeve matches the length of the sampling tube. Then, the sampling tube is placed into the placement cylinder until the bottom end of the sampling tube contacts the inner wall of the support sleeve. As the sampling tube is inserted, the two clamping pads move outward due to tension. At this time, under the action of the elastic force of the elastic steel sheet, the elastic steel sheet can clamp the sampling tube, thereby achieving the fixation of sampling tubes of different sizes.

[0030] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0031] Figure 1 This is a front view of the three-dimensional structure of the present invention;

[0032] Figure 2 This is a rear view schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the opening structure of the box lid of the present invention;

[0034] Figure 4 This is a partial structural schematic diagram of the present invention;

[0035] Figure 5 This is a schematic diagram of the installation structure of the separation balancing mechanism and the fixing mechanism of the present invention;

[0036] Figure 6 This is a three-dimensional structural schematic diagram of the separation and balancing mechanism of the present invention;

[0037] Figure 7 This is a partial structural schematic diagram of the separation and balancing mechanism of the present invention;

[0038] Figure 8 This is a three-dimensional structural diagram of the fixing mechanism of the present invention;

[0039] Figure 9 This is a schematic diagram of the mounting structure of the bottom cover and the motor of the present invention;

[0040] Figure 10 For the present invention Figure 7 A magnified schematic diagram of the structure at point A in the middle.

[0041] In the picture:

[0042] 1. Separation box;

[0043] 2. Load-bearing rod;

[0044] 3. Separation and balancing mechanism; 301. Fixed block; 302. Connecting line; 303. Sliding pad; 304. Spring 1; 305. Positioning cylinder; 306. Balance weight; 307. Control rod; 308. Movable pad; 309. Handle; 310. Spring 2; 311. Transmission rod; 312. L-shaped limit plate; 313. Connecting column; 314. Support arm; 315. Placement cylinder; 316. Positioning column;

[0045] 4. Fixing mechanism; 401. Support sleeve; 402. Fixing rod; 403. Fixing cylinder; 404. Fixing ring; 405. Clamping pad; 406. Elastic steel sheet;

[0046] 5. Bottom cover; 6. Motor; 7. Case cover; 8. Handle; 9. Control panel; 10. Ventilation vents;

[0047] 11. Body; 12. Conductive wire; 13. Handle; 14. Base; 15. Rotating column; 16. Casters; 17. Nameplate. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0049] Please see Figure 1-10 This invention provides a technical solution: a separation device for whole blood separation and sampling, comprising:

[0050] The separation box 1 used for support is prior art, and this application does not further limit the model of the separation box 1. The separation box 1 is equipped with a sensing module and a control module. Since the separation box 1 is not the main innovative direction of this invention, the sensing module and control module of the separation box 1 are not shown in the accompanying drawings.

[0051] The inner wall of the separation box 1 is rotatably connected to a bearing rod 2, which can rotate within the inner wall of the separation box 1. The bottom surface of the separation box 1 has four threaded holes. The separation box 1 is equipped with a separation balancing mechanism 3, which is installed on the outer surface of the bearing rod 2. The separation balancing mechanism 3 can play a balancing role.

[0052] The separation box 1 is equipped with a set of fixing mechanisms 4. The fixing mechanisms 4 can play a stabilizing role and can fix sampling tubes of different sizes.

[0053] Please refer to the following carefully. Figure 6 The separation and balancing mechanism 3 includes a fixed block 301 and a set of support arms 314. The fixed block 301 is fixedly connected to the inner wall of the bearing rod 2. A connecting line 302 is slidably connected to the inner wall of the fixed block 301 and extends through the fixed block 301 and into the interior of the bearing rod 2. A sliding pad 303 is fixedly connected to the bottom end of the connecting line 302. A hemispherical reserved cavity is opened on the upper surface of the fixed block 301. The connecting line 302 can slide on the inner wall of the fixed block 301. As the connecting line 302 moves, it can drive the sliding pad 303 to move.

[0054] Please refer to the following carefully. Figure 6 The sliding pad 303 is slidably connected to the inner wall of the bearing rod 2. A spring 304 is fixedly connected to the bottom surface of the sliding pad 303. The spring 304 is fixedly connected to the inner bottom wall of the bearing rod 2. A positioning cylinder 305 is provided on the upper surface of the fixing block 301. The sliding pad 303 can slide on the inner wall of the bearing rod 2. As the sliding pad 303 slides upward, it can stretch the spring 304. The spring 304 has a small elastic coefficient. A set of reserved grooves is provided on the outer surface of the positioning cylinder 305. A set of positioning holes is provided on the upper surface of the bearing rod 2. A set of limiting grooves is provided on the outer surface of the bearing rod 2.

[0055] Please refer to the following carefully. Figure 6 A counterweight 306 is fixedly connected to the bottom surface of the positioning cylinder 305. The counterweight 306 is adapted to the fixed block 301. The connecting line 302 is fixedly connected to the counterweight 306. A control rod 307 is slidably connected to the inner wall of the positioning cylinder 305. A movable pad 308 is fixedly connected to the bottom end of the control rod 307. The counterweight 306 is hemispherical in shape and is adapted to the hemispherical reserved cavity opened on the upper surface of the fixed block 301. As the counterweight 306 moves, it can drive the connecting line 302 to move. The control rod 307 extends to the inner wall of the positioning cylinder 305.

[0056] Please refer to the following carefully. Figure 10A handle 309 is fixedly connected to the top of the control lever 307. A spring 310 is fixedly connected to the upper surface of the movable pad 308. The spring 310 is fixedly connected to the inner top wall of the positioning cylinder 305. A set of transmission rods 311 are hinged to the outer surface of the movable pad 308. An L-shaped limiting plate 312 is hinged to the outer surface of each transmission rod 311. A connecting post 313 is rotatably connected to the inner wall of each L-shaped limiting plate 312. Each connecting post 313 is fixedly connected to the inner wall of the positioning cylinder 305. A set of positioning posts 316 are fixedly connected to the bottom surface of the positioning cylinder 305. Each support arm 314 is fixedly connected to the bearing rod 2. A placement cylinder 315 is fixedly connected to the outer surface of each support arm 314. The positioning cylinder 305 and the placement cylinder 315 are compatible. The handle 309 allows medical staff to easily control the control lever 307. The connecting post 313 is located through the opening on the outer surface of the positioning cylinder 305. The reserved slot is fixedly connected to the inner wall of the positioning cylinder 305. The positioning pin 316 is adapted to the positioning hole opened on the upper surface of the bearing rod 2, and the bottom end of the connecting pin 313 is adapted to the limiting groove opened on the outer surface of the bearing rod 2. By hanging the bottom end of the connecting pin 313 in the limiting groove, the positioning cylinder 305 can be limited to the upper surface of the bearing rod 2. As the movable pad 308 moves downward, it can drive the transmission rod 311 to rotate, and then drive the connecting pin 313 to rotate. As the connecting pin 313 rotates, it can disengage from the limiting groove opened on the outer surface of the bearing rod 2, and then contact the positioning cylinder 305. The upper surface of the placement cylinder 315 is provided with a positioning hole adapted to the positioning pin 316, and the outer surface of the placement cylinder 315 is provided with a limiting groove adapted to the connecting pin 313. As the bearing rod 2 rotates, it can drive the support arm 314 to rotate, and then drive the placement cylinder 315 to rotate.

[0057] Please refer to the following carefully. Figure 8 The fixing mechanism 4 includes a support sleeve 401 and a set of fixing rings 404. The upper surface of the support sleeve 401 is fixedly connected to symmetrical fixing rods 402. The outer surfaces of the two fixing rods 402 are slidably connected to fixing cylinders 403. The two fixing cylinders 403 are fixedly connected to the placement cylinder 315. The frictional resistance between the fixing rods 402 and the fixing cylinders 403 is relatively large. As the placement cylinder 315 rotates, it can drive the support sleeve 401 to rotate.

[0058] Please refer to the following carefully. Figure 8Each fixing ring 404 is fixedly connected to the fixing cylinder 403. Each fixing ring 404 has a symmetrical clamping pad 405 inside. The outer surfaces of the two clamping pads 405 are fixedly connected to elastic steel sheets 406. The elastic steel sheets 406 are fixedly connected to the fixing ring 404. When performing whole blood separation on the blood in the collection tube, the collection tube must be inserted into the placement cylinder 315 and the bottom end must be in contact with the support sleeve 401. Under the action of the elastic force of the elastic steel sheet 406, the collection tube can be clamped and fixed by the clamping pads 405.

[0059] Please refer to the following carefully. Figure 9 The bottom of the separation box 1 is equipped with a bottom cover 5, and a motor 6 is installed on the upper surface of the bottom cover 5. The output end of the motor 6 is fixedly connected to the bottom end of the support rod 2. The upper surface of the separation box 1 is equipped with a box cover 7, and a handle 8 is fixedly connected to the upper surface of the box cover 7. A control panel 9 is installed on the front of the separation box 1. A set of heat dissipation windows 10 are opened on both sides of the separation box 1. The bottom cover 5 is installed on the bottom surface of the separation box 1 by screws and threaded holes opened on the bottom surface of the separation box 1. The motor 6 is existing technology, and the model of the motor 6 is not further limited in this invention. The motor 6 can drive the rotation of the support rod 2 by starting the motor 6. The control panel 9 is existing technology, and the model of the control panel 9 is not further limited in this invention. The control panel 9 is electrically connected to the sensing module and control module installed inside the separation box 1. The motor 6 can be started by the display panel and control keys on the control panel 9.

[0060] Please refer to the following carefully. Figure 2 The bottom surface of the separation box 1 is equipped with a body 11, and a conductive wire 12 is installed on the outer surface of the body 11. A symmetrical handle 13 is hinged to the outer surface of the body 11. The body 11 belongs to the prior art, and the present invention does not further limit the model of the body 11. By electrically connecting the conductive wire 12 to an external power source, power can be supplied to the device.

[0061] Please refer to the following carefully. Figure 1 The bottom surface of the body 11 is fixedly connected to a base 14, and the bottom surface of the base 14 is rotatably connected to four rotating columns 15. Each of the four rotating columns 15 is equipped with a movable wheel 16. A nameplate 17 is fixedly connected to the outer surface of the body 11. The rotating columns 15 can rotate on the bottom surface of the base 14. The movable wheel 16 is existing technology, and the present invention does not further limit the model of the movable wheel 16. The movable wheel 16 can move the device relatively conveniently. Since the movable wheel 16 is not the main innovation direction of the present invention, the specific details of the movable wheel 16 are not shown in the accompanying drawings.

[0062] Working principle: When the number of collection tubes to be separated is odd, medical staff first remove one tube from the odd-numbered collection tubes. The remaining even-numbered collection tubes are then inserted symmetrically into the placement cylinder 315 until the bottom of the collection tube contacts the inner wall of the support sleeve 401. As the collection tube is inserted, the two clamping pads 405 move outwards due to tension. At this point, the elastic steel sheet 406 clamps and fixes the collection tube under its elastic force. Finally, the remaining collection tube is inserted into the placement cylinder in the same manner. Inside cylinder 315, after the last fixation is completed, medical staff can press down on handle 309. As handle 309 moves downward, control rod 307 moves downward, which in turn moves movable pad 308 downward. This movement of movable pad 308 then rotates transmission rod 311, which in turn rotates connecting post 313 until it disengages from the limiting groove on the outer surface of bearing rod 2. Once connecting post 313 disengages from the limiting groove on the outer surface of bearing rod 2, the staff... The operator pulls the positioning cylinder 305 and places it on the upper surface of another placement cylinder 315 symmetrical to the placement cylinder 315 where the last collection tube is placed. The positioning pin 316 must be inserted into the limiting hole on the upper surface of the placement cylinder 315. After the bottom surface of the positioning cylinder 305 contacts the upper surface of the placement cylinder 315, the operator releases the handle 309. Under the pulling force of the spring 310, the movable pad 308 moves upward. As the movable pad 308 moves upward, it drives the transmission rod 311 to rotate, thereby driving the connecting pin 313. Rotate until the connecting column 313 is engaged in the limiting groove on the outer surface of the placement cylinder 315, thereby fixing the positioning cylinder 305 on the upper surface of the placement cylinder 315. Through the gravity of the balancing counterweight 306, the last collection tube can be balanced, thus effectively avoiding the difference in centrifugal force on the collection tubes when the number of separated collection tubes is odd. At the same time, it avoids the error in the results of the separated whole blood sample due to the difference in centrifugal force on the collection tubes, further ensuring the accuracy of the whole blood sample separation results of the device.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A separation device for whole blood separation sampling operation, characterized in that, include: A separation box (1) for support, wherein a sensing module and a control module are installed inside the separation box (1): The inner wall of the separation box (1) is rotatably connected to a bearing rod (2). The bottom surface of the separation box (1) is provided with four threaded holes. The separation box (1) is equipped with a separation balancing mechanism (3). The separation balancing mechanism (3) is installed on the outer surface of the bearing rod (2). The separation balancing mechanism (3) can play a balancing role. The separation and balancing mechanism (3) includes a fixed block (301) and a set of support arms (314). The fixed block (301) is fixedly connected to the inner wall of the bearing rod (2). A connecting line (302) is slidably connected to the inner wall of the fixed block (301), and the connecting line (302) passes through the fixed block (301) and extends into the interior of the bearing rod (2). A sliding pad (303) is fixedly connected to the bottom end of the connecting line (302). The sliding pad (303) is slidably connected to the inner wall of the bearing rod (2). A spring (304) is fixedly connected to the bottom surface of the sliding pad (303). The spring (304) is fixedly connected to the inner bottom wall of the bearing rod (2). A positioning cylinder (305) is provided on the upper surface of the fixing block (301). A counterweight (306) is fixedly connected to the bottom surface of the positioning cylinder (305). The counterweight (306) is adapted to the fixed block (301). The connecting line (302) is fixedly connected to the counterweight (306). A control rod (307) is slidably connected to the inner wall of the positioning cylinder (305). A movable pad (308) is fixedly connected to the bottom end of the control rod (307). A handle (309) is fixedly connected to the top of the control lever (307). A spring (310) is fixedly connected to the upper surface of the movable pad (308). The spring (310) is fixedly connected to the inner top wall of the positioning cylinder (305). A set of transmission rods (311) is hinged to the outer surface of the movable pad (308). An L-shaped limiting plate (312) is hinged to the outer surface of each transmission rod (311). A connecting column (313) is rotatably connected to the inner wall of each L-shaped limiting plate (312). Each connecting column (313) is fixedly connected to the inner wall of the positioning cylinder (305). A set of positioning columns (316) is fixedly connected to the bottom surface of the positioning cylinder (305). The separation box (1) is equipped with a set of fixing mechanisms (4), which can play a stabilizing role. By setting the fixing mechanisms (4), sampling tubes of different sizes can be fixed.

2. A separation device for the separation and sampling of whole blood according to claim 1, characterized in that: Each of the support arms (314) is fixedly connected to the bearing rod (2), and each of the support arms (314) has a placement tube (315) fixedly connected to its outer surface. The positioning tube (305) is adapted to the placement tube (315).

3. The separation device for whole blood separation and sampling operation according to claim 1, characterized in that: The fixing mechanism (4) includes a support sleeve (401) and a set of fixing rings (404). The upper surface of the support sleeve (401) is fixedly connected with symmetrical fixing rods (402). The outer surfaces of the two fixing rods (402) are slidably connected with fixing cylinders (403). The two fixing cylinders (403) are fixedly connected to the placement cylinder (315).

4. The separation device for whole blood separation and sampling operation according to claim 3, characterized in that: Each of the fixed rings (404) is fixedly connected to the fixed cylinder (403). Each of the fixed rings (404) has a symmetrical clamping pad (405) inside. The outer surfaces of the two clamping pads (405) are fixedly connected with elastic steel sheets (406). The elastic steel sheets (406) are fixedly connected to the fixed rings (404).

5. The separation device for whole blood separation and sampling operation according to claim 1, characterized in that: The bottom surface of the separation box (1) is equipped with a bottom cover (5), and the upper surface of the bottom cover (5) is equipped with a motor (6). The output end of the motor (6) is fixedly connected to the bottom end of the support rod (2). The upper surface of the separation box (1) is equipped with a box cover (7), and the upper surface of the box cover (7) is fixedly connected with a handle (8). The front of the separation box (1) is equipped with a control panel (9), and both sides of the separation box (1) are provided with a set of heat dissipation windows (10).

6. The separation device for whole blood separation and sampling operation according to claim 5, characterized in that: The bottom surface of the separation box (1) is fitted with a body (11), and the outer surface of the body (11) is fitted with conductive wires (12). The outer surface of the body (11) is hinged with symmetrical handles (13).

7. The separation device for whole blood separation and sampling operation according to claim 6, characterized in that: The bottom surface of the body (11) is fixedly connected to a base (14), and the bottom surface of the base (14) is rotatably connected to four rotating columns (15). The bottom surface of each of the four rotating columns (15) is equipped with a moving wheel (16), and the outer surface of the body (11) is fixedly connected to a nameplate (17).

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