Freezing and centrifuging device for blood products

Abstract

The utility model relates to the technical field of blood product processing, in particular to a blood product freezing and centrifuging device which comprises a medical freezing cabinet and centrifuging equipment, and the centrifuging equipment is fixedly connected to the interior of the medical freezing cabinet; the centrifugal equipment comprises a centrifugal motor, a connecting mechanism, a mounting disc and a placement tank, the centrifugal motor is fixedly connected to the inner bottom wall of the medical cabinet freezer, and the connecting mechanism is fixedly connected to an output shaft of the centrifugal motor; in the blood centrifuging process, the positioning blocks are far away from the elastic pieces under the action of rotating centrifugal force, so that the connecting tightness of the positioning blocks and the connecting grooves can be improved, and as the rotating speed of the centrifugal motor is higher, the connection between the positioning blocks and the connecting grooves is tighter, so that the connection between the mounting disc and the centrifugal motor is tighter; therefore, the stability of blood centrifugation operation is improved, and the use safety coefficient of the refrigerated centrifugation device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood product processing, in particular to a blood product freezing centrifuge device. Background Art

[0002] Blood product freezing centrifugation is an important experimental technique that separates and purifies red blood cells, white blood cells, platelets and other components in the blood through the centrifugal force generated by high-speed rotation to ensure the stability and activity of the sample. This technology provides important support for the analysis of blood components and disease diagnosis, and helps to conduct in-depth research or testing of specific components in the future.

[0003] At present, a Chinese patent discloses a blood product refrigeration centrifuge device (Announcement No. CN218423401U). The utility model is provided with a centrifuge box fixing component, which can increase the rotation speed of the centrifuge box, thereby improving the efficiency of blood preparation. In addition, the component is provided with a fixing device, which can facilitate the disassembly of the centrifuge box so as to freeze and store the blood products in the centrifuge box.

[0004] Since the above-mentioned device locks the centrifugal box and the rotating rod together through the fixing device, and the staff needs to pull the fixing rod in the direction away from the rotating rod to unlock the fixing device and the rotating rod, but in the process of the motor driving the fixing device and the centrifugal box to rotate at high speed through the rotating rod, the fixing rod is also affected by the centrifugal force and moves outward, and the higher the rotation, the greater the outward displacement of the fixing rod will be, which will undoubtedly reduce the tightness of the connection between the fixing device and the rotating rod, posing a safety hazard. Utility Model Content

[0005] The purpose of the utility model is to provide a blood product refrigeration centrifuge to solve the above problems, thereby solving the problem that the installation structure of the existing blood product refrigeration centrifuge is unstable and has potential safety hazards in use.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A blood product freezing centrifuge device comprises: a medical freezer and a centrifugal device, wherein the centrifugal device is fixedly connected to the inside of the medical freezer; the centrifugal device comprises a centrifugal motor, a connecting mechanism, a mounting plate and a placement tank, wherein the centrifugal motor is fixedly connected to the inner bottom wall of the medical freezer, the connecting mechanism is fixedly connected to the output shaft of the centrifugal motor, the mounting plate is installed on the surface of the connecting mechanism, and the placement tank is threadedly connected to the top of the mounting plate.

[0008] Furthermore, the connecting mechanism includes a rectangular recess, a rectangular frame, a spring sheet, a pull ring and an adjusting rod, the rectangular recess is fixedly connected to the output shaft of the centrifugal motor, two opposite vertical inner walls of the rectangular recess are provided with connecting grooves, the rectangular frame is inserted into the interior of the rectangular recess, the top of the rectangular frame is fixedly connected to the bottom of the mounting disk, two mounting plates are slidably connected to the interior of the rectangular frame, the opposite ends of the two mounting plates are fixedly connected to positioning blocks that are clamped with adjacent connecting grooves, the spring sheet is fixedly connected between the two mounting plates, the pull ring is slidably connected to the surface of the spring sheet, the adjusting rod is fixedly connected to the top of the pull ring, and the top of the adjusting rod passes through the rectangular frame and extends to the outside of the mounting disk.

[0009] Furthermore, the cross-sectional shapes of the connection groove and the connection portion of the positioning block and the connection groove are both right triangles, and the inclined surfaces of the connection groove and the positioning block are both facing the centrifugal motor.

[0010] Furthermore, the number of the positioning blocks and the connecting slots is not less than four, and the number of the positioning blocks and the connecting slots is the same.

[0011] Furthermore, the bottom of the pull ring contacts the inner bottom wall of the rectangular frame, and the adjusting rod is slidably connected to the rectangular frame.

[0012] Furthermore, a rectangular groove engaged with the rectangular recess is formed at the bottom of the mounting plate, and the rectangular frame is fixedly connected to the inner top wall of the rectangular groove.

[0013] Furthermore, a guide rod is arranged inside the rectangular frame, and two ends of the guide rod respectively penetrate the adjacent mounting plates and are fixedly connected to the rectangular frame.

[0014] Furthermore, a spring is sleeved on the surface of the guide rod, and the spring is arranged between the two mounting plates, and the spring is always in a compressed state.

[0015] In summary, the beneficial effect of the utility model is that during the blood centrifugation process, the positioning block is away from the spring piece under the action of the rotating centrifugal force, which can increase the connection tightness between the positioning block and the connecting groove, and as the rotation speed of the centrifugal motor is faster, the connection between the positioning block and the connecting groove is tighter, which can make the mounting plate and the centrifugal motor more tightly connected, so as to improve the stability of the blood centrifugation operation, thereby improving the safety factor of the use of the refrigerated centrifuge device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the centrifugal device in the utility model;

[0019] Figure 3 It is a structural schematic diagram of a partial cutout of the centrifugal device in the utility model;

[0020] Figure 4 It is a partially cutaway schematic diagram of the centrifugal device in the utility model;

[0021] Figure 5 It is a partially exploded schematic diagram of the connecting mechanism in the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Medical freezer; 2. Centrifugal equipment; 21. Centrifugal motor; 22. Connecting mechanism; 221. Rectangular recess; 2211. Connecting groove; 222. Rectangular frame; 223. Mounting plate; 224. Positioning block; 225. Shrapnel; 226. Pull ring; 227. Adjusting rod; 228. Guide rod; 229. Spring; 23. Mounting plate; 231. Rectangular groove; 24. Placement tank. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 - Figure 5As shown, the utility model provides a blood product freezing centrifuge device, comprising: a medical freezer 1 and a centrifugal device 2, the centrifugal device 2 is fixedly connected to the inside of the medical freezer 1; the centrifugal device 2 comprises a centrifugal motor 21, a connecting mechanism 22, a mounting plate 23 and a placement tank 24, the centrifugal motor 21 is fixedly connected to the inner bottom wall of the medical freezer 1, the connecting mechanism 22 is fixedly connected to the output shaft of the centrifugal motor 21, the mounting plate 23 is installed on the surface of the connecting mechanism 22, the placement tank 24 is threadedly connected to the top of the mounting plate 23, the top of the mounting plate 23 is provided with evenly distributed thread grooves, the surface of the placement tank 24 is provided with external threads matching the thread grooves, and the placement tank 24 is threadedly connected to the thread grooves on the top of the mounting plate 23 through the external threads.

[0026] like Figure 3 , Figure 4 and Figure 5As shown, the connecting mechanism 22 includes a rectangular recess 221, a rectangular frame 222, a spring piece 225, a pull ring 226 and an adjusting rod 227. The rectangular recess 221 is fixedly connected to the output shaft of the centrifugal motor 21. The two opposite vertical inner walls of the rectangular recess 221 are each provided with a connecting groove 2211. The rectangular frame 222 is inserted into the interior of the rectangular recess 221. The top of the rectangular frame 222 is fixedly connected to the bottom of the mounting plate 23. Two mounting plates 223 are slidably connected inside the rectangular frame 222. The opposite ends of the two mounting plates 223 are fixedly connected with a positioning block 224 that is clamped with the adjacent connecting groove 2211. The spring piece 225 is fixedly connected between the two mounting plates 223. The pull ring 226 is slidably connected to the surface of the spring piece 225, and the adjusting rod 227 is fixedly connected to the top of the pull ring 226. The top of the adjusting rod 227 passes through the rectangular frame 222 and extends to the outside of the mounting plate 23; the cross-sectional shapes of the connecting groove 2211 and the positioning block 224 and the connecting groove 2211 are both right-angled triangles, and the inclined surfaces of the connecting groove 2211 and the positioning block 224 are both facing the centrifugal motor 21, which can make it more convenient for the staff to place the mounting plate 223, making the staff's work easier; the number of the positioning blocks 224 and the connecting groove 2211 is not less than four, and the number of the positioning blocks 224 and the connecting groove 2211 is the same, which can increase the positioning blocks 224. The connection area with the connecting groove 2211 makes the connection between the mounting plate 23 and the centrifugal motor 21 more tightly; the bottom of the pull ring 226 contacts the inner bottom wall of the rectangular frame 222, and the adjusting rod 227 is slidably connected with the rectangular frame 222, which can prevent the adjusting rod 227 from bending the spring piece 225 under the action of gravity, so as to ensure that the positioning block 224 is tightly connected with the connecting groove 2211; the bottom of the mounting plate 23 is provided with a rectangular groove 231 that is clamped with the rectangular recess 221, and the rectangular frame 222 is fixedly connected to the inner top wall of the rectangular groove 231, which can increase the connection area between the rectangular recess 221 and the mounting plate 23, and further increase the tight connection between the mounting plate 23 and the centrifugal motor 21 degree; a guide rod 228 is arranged inside the rectangular frame 222, and the two ends of the guide rod 228 respectively penetrate the adjacent mounting plates 223 and are fixedly connected to the rectangular frame 222, which can limit the movement trajectory of the mounting plate 223, prevent the mounting plate 223 from tilting or rotating, and thus achieve a good guiding effect; a spring 229 is sleeved on the surface of the guide rod 228, and the spring 229 is arranged between the two mounting plates 223, and the spring 229 is always in a compressed state, which can not only speed up the resetting speed of the positioning block 224, but also increase the connection tightness between the positioning block 224 and the connecting groove 2211, and further increase the connection tightness between the mounting plate 23 and the centrifugal motor 21;

[0027] When the staff needs to remove the mounting plate 23, the staff only needs to lift the adjusting rod 227, and the adjusting rod 227 bends the spring piece 225 through the pull ring 226. The spring piece 225 pulls back the two mounting plates 223 at the same time, and the mounting plates 223 drive the positioning block 224 to separate from the connecting groove 2211. At this time, the rectangular recess 221 loses connection with the rectangular frame 222, and the staff can move the mounting plate 23 and the rectangular frame 222 out of the medical freezer 1.

[0028] Working principle: The staff first adds blood into the placement tank 24, and then screws the placement tank 24 onto the mounting plate 23. When all the placement tanks 24 are installed, the staff can put the mounting plate 23 into the medical freezer 1, and insert the rectangular frame 222 into the rectangular recess 221. When the rectangular frame 222 penetrates into the rectangular recess 221, the inclined surface of the positioning block 224 contacts the corner of the rectangular recess 221. When the rectangular frame 222 moves downward, the positioning block 224 is squeezed back into the rectangular frame 221 by the rectangular recess 221. 2, when the rectangular frame 222 is installed in place, the positioning block 224 is just aligned with the connecting groove 2211, and the spring 225 cooperates with the spring 229 to push back the two mounting plates 223 at the same time, and the mounting plate 223 drives the positioning block 224 to be tightly engaged with the connecting groove 2211, and then the staff can start the centrifugal motor 21 and the medical freezer 1, and the medical freezer 1 quickly reduces the temperature of the blood inside the placement tank 24, and the centrifugal motor 21 drives the placement tank 24 to rotate through the connecting mechanism 22 and the mounting plate 23, and the placement tank 24 drives the blood to rotate and centrifuge quickly;

[0029] During the blood centrifugation process, the positioning block 224 moves away from the spring piece 225 under the action of the rotating centrifugal force, which can increase the connection tightness between the positioning block 224 and the connecting groove 2211, and as the rotation speed of the centrifugal motor 21 increases, the connection between the positioning block 224 and the connecting groove 2211 becomes tighter, which can make the mounting plate 23 and the centrifugal motor 21 more tightly connected, so as to improve the stability of the blood centrifugation operation, thereby improving the safety factor of the use of the refrigerated centrifuge device.

[0030] It should be noted that the medical freezer 1 and centrifugal motor 21 described above are both relatively mature devices in the existing technology. The specific model can be selected according to actual needs. At the same time, the medical freezer 1 and the centrifugal motor 21 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0031] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A blood product refrigeration centrifuge, characterized in that: include: A medical freezer (1) and a centrifugal device (2), wherein the centrifugal device (2) is fixedly connected to the interior of the medical freezer (1); The centrifugal device (2) comprises a centrifugal motor (21), a connecting mechanism (22), a mounting plate (23) and a placement tank (24); the centrifugal motor (21) is fixedly connected to the inner bottom wall of the medical freezer (1); the connecting mechanism (22) is fixedly connected to the output shaft of the centrifugal motor (21); the mounting plate (23) is mounted on the surface of the connecting mechanism (22); and the placement tank (24) is threadedly connected to the top of the mounting plate (23); The connecting mechanism (22) comprises a rectangular recess (221), a rectangular frame (222), a spring sheet (225), a pull ring (226) and an adjusting rod (227); the rectangular recess (221) is fixedly connected to the output shaft of the centrifugal motor (21); two opposite vertical inner walls of the rectangular recess (221) are provided with connecting grooves (2211); the rectangular frame (222) is inserted into the interior of the rectangular recess (221); the top of the rectangular frame (222) is fixedly connected to the bottom of the mounting plate (23); the inner wall of the rectangular frame (222) is provided with a connecting groove (2211); The mounting plate (23) is slidably connected to two mounting plates (223), and the opposite ends of the two mounting plates (223) are fixedly connected to positioning blocks (224) that are engaged with adjacent connecting grooves (2211). The spring sheet (225) is fixedly connected between the two mounting plates (223), and the pull ring (226) is slidably connected to the surface of the spring sheet (225). The adjusting rod (227) is fixedly connected to the top of the pull ring (226), and the top of the adjusting rod (227) passes through the rectangular frame (222) and extends to the outside of the mounting plate (23).

2. A blood product refrigeration centrifuge according to claim 1, characterized in that: The cross-sectional shapes of the connection groove (2211) and the connection portion of the positioning block (224) and the connection groove (2211) are both right-angled triangles, and the inclined surfaces of the connection groove (2211) and the positioning block (224) are both facing the centrifugal motor (21).

3. A blood product refrigerated centrifuge according to claim 1, characterized in that: The number of the positioning blocks (224) and the connecting grooves (2211) is not less than four, and the number of the positioning blocks (224) and the connecting grooves (2211) are the same.

4. A blood product refrigerated centrifuge according to claim 1, characterized in that: The bottom of the pull ring (226) contacts the inner bottom wall of the rectangular frame (222), and the adjustment rod (227) is slidably connected to the rectangular frame (222).

5. A blood product refrigerated centrifuge according to claim 1, characterized in that: The bottom of the installation plate (23) is provided with a rectangular groove (231) that is engaged with the rectangular recess (221), and the rectangular frame (222) is fixedly connected to the inner top wall of the rectangular groove (231).

6. A blood product refrigerated centrifuge according to claim 1, characterized in that: A guide rod (228) is provided inside the rectangular frame (222), and two ends of the guide rod (228) respectively penetrate the adjacent mounting plates (223) and are fixedly connected to the rectangular frame (222).

7. A blood product refrigerated centrifuge according to claim 6, characterized in that: A spring (229) is sleeved on the surface of the guide rod (228); the spring (229) is arranged between the two mounting plates (223); and the spring (229) is always in a compressed state.

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