Centrifugal balancing device for blood component preparation

Abstract

This utility model discloses a centrifugal balancing device for blood component preparation, relating to the technical field of centrifugal balancing devices. It includes: a workbench; a balance body disposed at the top of the workbench; two sets of balancing components symmetrically disposed at the top of the balance body; an extraction component disposed at the top of the balancing components; a locking component disposed on the outside of the extraction components for disassembly and maintenance; and a limiting component disposed on the top outside of the extraction components. This utility model, through the coordinated arrangement of the workbench, balance body, balancing components, extraction components, locking components, and limiting components, not only enables centrifugal balancing of blood collection bags but also significantly improves the balancing accuracy of the blood collection bags before centrifugation. Furthermore, disassembly facilitates the recycling and reuse of the balancing solution and the maintenance of the device.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal balancing device technology, and more specifically, to a centrifugal balancing device for blood component preparation. Background Technology

[0002] When preparing blood components at blood banks, centrifugation is typically used to separate different components. To ensure the stable and efficient operation of the centrifuge, the two bags of blood placed in opposite positions must have roughly the same weight before centrifugation. Since the blood density and viscosity of different blood donors vary, the weight of the blood bags collected directly is often uneven. Therefore, a specialized centrifugation balancing device for blood component preparation is needed to precisely balance the two bags of blood before centrifugation to ensure the stable and efficient operation of subsequent centrifugation.

[0003] However, existing centrifugal balancing devices for blood component preparation mostly rely on the manual addition of external weights, such as saline bags or metal blocks. During the balancing process, the weights need to be repeatedly placed or removed from the balance pan, and adjustments are made gradually by observing the balance readings. The entire process is time-consuming, labor-intensive, and highly dependent on the operator's experience and judgment. It is very easy for human error to cause the balancing accuracy to be substandard, making it difficult to stably control within the error range required by the centrifugation process. Moreover, if too much liquid is added, it is difficult to make accurate corrections, leading to balancing failure or the need to start over. In addition, the liquid used for balancing is usually discarded after one use and cannot be recycled, resulting in resource waste.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a centrifugal balancing device for blood component preparation to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows: A centrifugal balancing device for blood component preparation includes: a worktable; a balance body disposed at the top of the worktable; two sets of balancing components symmetrically disposed at the top of the balance body; an extraction component disposed at the top of the balancing components; a locking component disposed on the outside of the extraction component for disassembling and maintaining the extraction component; and a limiting component disposed on the top outside of the extraction component.

[0007] Furthermore, to facilitate balancing operations, the balancing container and connecting tube enable the rapid and accurate injection of an appropriate amount of balancing solution to achieve preliminary mass equilibrium, laying the foundation for subsequent fine balancing. The balancing components include: a balancing container, located at the top of the balance body; a connecting tube, extending through the top of the balancing container; and an venting pipe, located on one side of the connecting tube.

[0008] Furthermore, in order to achieve the secondary balancing operation, the excess balancing solution after the initial balancing can be extracted smoothly and accurately under the extraction action of the extraction rod, effectively eliminating the quality deviation caused by excessive initial liquid addition, ensuring that the two blood collection bags reach a highly consistent quality state, and meeting the stringent requirements of high-speed centrifugation for balance. The extraction component includes an extraction tube set at the top of the balancing component, and an extraction rod that cooperates with it is set inside the extraction tube.

[0009] Furthermore, to facilitate the recycling and reuse of the balancing solution and the maintenance of the device, the snap-fit ​​mechanism between the snap-fit ​​block and the snap-fit ​​groove enables rapid locking and releasing between the extraction component and the device. This facilitates the disassembly and maintenance of the extraction component, as well as the recycling and reuse of the balancing solution, reducing waste of medical consumables and extending the overall service life of the device. The snap-fit ​​component includes a snap-fit ​​frame located on the outside of the extraction component. Inside the snap-fit ​​frame is a connecting frame that connects to the extraction component. The connecting frame has symmetrical limit grooves at both ends. Springs are installed inside the limit grooves. One end of the spring has a snap-fit ​​block that mates with the limit groove. The outside of the snap-fit ​​block has a pressing block that mates with the limit groove. Snap-fit ​​grooves that mate with the snap-fit ​​blocks are located at both ends of the snap-fit ​​frame.

[0010] Furthermore, to improve the smoothness of the extraction, the sliding groove and the limiting rod work together to guide and stabilize the extraction rod during the balancing process, effectively ensuring the linearity and accuracy of the extraction operation. This provides a stable trajectory constraint for the up-and-down movement of the extraction rod, preventing it from shifting, shaking, or jamming during lifting and lowering. This ensures a smooth and uniform extraction process of the balancing solution, avoiding the impact of mechanical vibration on balancing accuracy. The limiting component includes a limiting frame located on the top outer side of the extraction component. A limiting block is located at the top of the limiting frame, and sliding grooves are formed on both sides of the limiting block. A limiting rod is located at the top inner edge of the sliding grooves, and a fixed frame is connected to the top of the limiting rod. A support frame is connected to the end of the fixed frame away from the balance body. The bottom end of the support frame is connected to the top of the worktable. The support frame is connected to the snap-fit ​​frame. The fixed frame has a U-shaped cross-section.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model, through the coordinated arrangement of the workbench, balance body, balancing component, extraction component, snap-fit ​​component and limiting component, can not only realize the centrifugal balancing operation of blood collection bags, but also significantly improve the balancing accuracy of blood collection bags before centrifugation, and facilitate the recycling and reuse of balancing solution and maintenance of the device through disassembly.

[0012] 2. The snap-fit ​​assembly enables quick locking and releasing between the extraction assembly and the device through the snap-fit ​​engagement of the snap-fit ​​block and the snap-fit ​​slot. This facilitates the disassembly and maintenance of the extraction assembly, as well as the recycling and reuse of the balancing solution, reducing waste of medical consumables and extending the overall service life of the device.

[0013] 3. Through the limiting component, the guide and stabilization of the extraction rod can be achieved through the cooperation of the slide and the limiting rod during the balancing process. This effectively ensures the linearity and accuracy of the extraction operation, provides a stable motion trajectory constraint for the up and down movement of the extraction rod, and prevents it from deviating, shaking or jamming during the lifting and lowering process. This ensures that the extraction process of the balancing solution is smooth and uniform, and avoids the impact of mechanical vibration on the balancing accuracy. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a centrifugal balancing device for preparing blood components according to an embodiment of the present invention; Figure 2 This is one of the partial structural schematic diagrams of a centrifugal balancing device for preparing blood components according to an embodiment of the present utility model; Figure 3 This is a second partial structural schematic diagram of a centrifugal balancing device for preparing blood components according to an embodiment of the present utility model; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is the third partial structural schematic diagram of a centrifugal balancing device for preparing blood components according to an embodiment of the present utility model.

[0016] In the picture: 1. Workbench; 2. Balance body; 3. Balancing assembly; 301. Balancing container; 302. Connecting pipe; 303. Exhaust pipe; 4. Extraction assembly; 401. Extraction pipe; 402. Extraction rod; 5. Snap-fit ​​assembly; 501. Snap-fit ​​bracket; 502. Connecting bracket; 503. Limiting groove; 504. Spring; 505. Snap-fit ​​block; 506. Pressing block; 507. Snap-fit ​​groove; 6. Limiting assembly; 601. Limiting bracket; 602. Limiting block; 603. Slide groove; 604. Limiting rod; 605. Fixing bracket; 606. Support bracket. Detailed Implementation

[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0018] According to an embodiment of the present invention, a centrifugal balancing device for blood component preparation is provided.

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-5 As shown, the centrifugal balancing device for blood component preparation according to an embodiment of the present invention includes: a workbench 1; a balance body 2 disposed at the top of the workbench 1; two sets of balancing components 3 symmetrically disposed at the top of the balance body 2; an extraction component 4 disposed at the top of the balancing component 3; a locking component 5 disposed on the outside of the extraction component 4 for disassembling and maintaining the extraction component 4; and a limiting component 6 disposed on the top outside of the extraction component 4.

[0020] In one embodiment, the balancing component 3 includes: a balancing container 301 disposed at the top of the balance body 2; a connecting pipe 302 extending through the top of the balancing container 301; and an exhaust pipe 303 disposed on one side of the connecting pipe 302. Under the action of the balancing container 301 and the connecting pipe 302, an appropriate amount of balancing solution can be injected quickly and accurately to achieve preliminary mass balance and lay the foundation for subsequent fine balancing.

[0021] In one embodiment, the extraction component 4 includes an extraction tube 401 disposed at the top of the balancing component 3, and an extraction rod 402 that cooperates with the extraction tube 401 is disposed inside the extraction tube 401; under the extraction action of the extraction rod 402, the excess balancing solution after the initial balancing can be extracted smoothly and accurately, effectively eliminating the quality deviation caused by the initial excessive liquid addition, ensuring that the two blood collection bags reach a highly consistent quality state, and meeting the stringent requirements of high-speed centrifugation for balance.

[0022] In one embodiment, the snap-fit ​​assembly 5 includes a snap-fit ​​bracket 501 disposed on the outside of the extraction assembly 4. The snap-fit ​​bracket 501 has a connecting bracket 502 connected to the extraction assembly 4 inside. The connecting bracket 502 has symmetrically provided limiting grooves 503 at both ends. A spring 504 is disposed inside the limiting groove 503. One end of the spring 504 has a snap-fit ​​block 505 that cooperates with the limiting groove 503. A pressing block 506 that cooperates with the limiting groove 503 is disposed on the outside of the snap-fit ​​block 505. Snap-fit ​​grooves 507 that cooperate with the snap-fit ​​blocks 505 are provided at both ends of the snap-fit ​​bracket 501. The snap-fit ​​cooperation between the snap-fit ​​blocks 505 and the snap-fit ​​grooves 507 enables rapid locking and releasing between the extraction assembly 4 and the device, facilitating the disassembly and maintenance of the extraction assembly 4, as well as the recycling and reuse of the balancing solution, reducing waste of medical consumables and extending the overall service life of the device.

[0023] In one embodiment, the limiting component 6 includes a limiting frame 601 disposed on the outer side of the top of the extraction component 4. A limiting block 602 is disposed at the top of the limiting frame 601. Slide grooves 603 are formed on both sides of the limiting block 602. A limiting rod 604 is disposed at the top inner part of the slide grooves 603. A fixing frame 605 is connected to the top of the limiting rod 604. A support frame 606 is connected to the end of the fixing frame 605 away from the balance body 2. The bottom end of the support frame 606 is connected to the top of the worktable 1. 06 is connected to the clip 501; the cross-section of the fixing frame 605 is a U-shaped structure; under the cooperation of the slide 603 and the limiting rod 604, it can guide and stabilize the extraction rod 402 during the balancing process, effectively ensuring the linearity and accuracy of the extraction operation, providing a stable motion trajectory constraint for the up and down movement of the extraction rod 402, preventing it from deviating, shaking or jamming during the lifting process, thereby ensuring that the extraction process of the balancing solution is smooth and uniform, and avoiding the impact of mechanical vibration on the balancing accuracy.

[0024] In addition, it should be noted that in practical applications, the above-mentioned extraction component 4 can be a medical syringe, wherein the bottom of the extraction rod 402 is provided with a sealing piston, which cooperates with the extraction tube 401 to achieve good sealing and smooth suction function. This medical syringe is existing technology and will not be elaborated on here.

[0025] Furthermore, it should be noted that in practical applications, the aforementioned connecting tube 302 uses a conventional medical injection connecting tubing for liquid transfer. The venting tube 303 is also a standard medical injection venting tube, used to expel air from the tubing during the injection process to ensure smooth injection of the balanced solution. Both the connecting tube 302 and the venting tube 303 are existing general medical materials. Since these are existing technologies, they will not be elaborated upon further here.

[0026] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0027] In practical application, the operator calibrates the balance body 2, then places the two blood collection bags to be balanced on the weighing tray of the balance body 2. A certain amount of balancing solution is injected into the connecting tube 302 containing the lighter blood collection bag for initial balancing. Under the connection of the connecting tube 302, the solution is injected into the balancing container 301, causing the balance to deflect slightly. During injection, the vent pipe 303 ensures unobstructed flow, completing the initial balancing. Then, a set of extraction components 4 and their corresponding limiting components 6 are placed at the top of the balancing container 301, aligning the slide 603 with the limiting rod 604. Move the limiting block 602 upwards, so that the limiting rod 604 is limited inside the slide groove 603. At the same time, hold the two sets of pressing blocks 506 and move them closer to each other towards the extraction component 4. Under the contraction action of the spring 504, the locking block 505 connected to it moves along the path of the limiting groove 503 towards the extraction component 4, so that the locking block 505 moves into the limiting groove 503. Align the top of the extraction rod 402 with the limiting frame 601 and move the connecting frame 502 into the locking frame 501, so that the locking block 505 is aligned with the locking groove 507. Then release the pressing block 506. Under the elastic recovery action of spring 504, the locking block 505 is locked into the locking groove 507, thereby realizing the installation of the extraction component 4. The bottom of the extraction tube 401 is connected to the top of the connecting tube 302. The limiting frame 601 is moved upward, so that the limiting frame 601 drives the extraction rod 402 to move upward along the path of the limiting groove 503, maintaining stable extraction, thereby realizing the extraction of excess balancing solution from the balancing container 301, completing secondary balancing, keeping the balance body 2 balanced, and completing the fine balancing operation. After balancing is completed, the two sets of pressing blocks 506 are held by hand and brought closer to each other in the direction of the extraction component 4. Under the contraction action of the spring 504, the latching block 505 connected to it moves along the path of the limiting groove 503 towards the extraction component 4. This causes the latching block 505 to move until it is no longer inside the latching groove 507, and then moves away from the latching component 5. This allows the extraction component 4 to be disassembled from the connecting frame 502 and the latching frame 501, facilitating the operator's recycling of excess balancing solution inside the extraction tube 401. The balancing container 301 containing the balancing solution and the corresponding blood collection bag are placed together, ensuring that the total mass of the container, the other blood collection bag, and the empty balancing container 301 is highly consistent. Subsequently, the operator suspends the balancing container 301 and the corresponding blood collection bag in one of the baskets on the same centrifuge rotor, and the empty balancing container 301 and the other blood collection bag are suspended in another basket on the same centrifuge rotor, ensuring that the two bags are symmetrically distributed to achieve dynamic mass balance. Close the centrifuge door, set the speed, temperature, and time parameters to meet the requirements for blood component separation, and start the centrifugation program.During high-speed rotation, the centrifuge operates smoothly with minimal vibration because the blood quality in the two baskets is highly consistent, with an error controlled within five grams. This effectively avoids equipment damage or separation failure caused by imbalance, thus ensuring high-quality separation of blood components such as plasma and red blood cells, providing a reliable foundation for subsequent component preparation.

[0028] In summary, by utilizing the above-mentioned technical solution of this utility model, through the coordinated arrangement of the workbench 1, balance body 2, balancing component 3, extraction component 4, locking component 5, and limiting component 6, not only can the centrifugation balancing operation of blood collection bags be realized, but the balancing accuracy of blood collection bags before centrifugation can also be significantly improved. Furthermore, disassembly facilitates the recycling and reuse of the balancing solution and the maintenance of the device. Through the locking component 5, the locking block 505 and the locking groove 507 enable rapid locking and releasing between the extraction component 4 and the device, facilitating the disassembly and maintenance of the extraction component 4. The device protects and recycles the balancing solution, reducing waste of medical consumables and extending the overall service life of the device. Through the limiting component 6, the sliding groove 603 and the limiting rod 604 work together to guide and stabilize the extraction rod 402 during the balancing process, effectively ensuring the linearity and accuracy of the extraction operation. It provides a stable motion trajectory constraint for the up and down movement of the extraction rod 402, preventing it from deviating, shaking or jamming during the lifting and lowering process, thereby ensuring that the extraction process of the balancing solution is smooth and uniform, and avoiding the impact of mechanical vibration on the balancing accuracy.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 balancing device for blood component preparation, characterized in that, include: Workbench (1); The balance body (2) is located at the top of the workbench (1); Two sets of balancing components (3) are symmetrically arranged at the top of the balance body (2); Extraction component (4) is disposed at the top of the balancing component (3); A snap-fit ​​component (5) is disposed on the outside of the extraction component (4) to enable disassembly and maintenance of the extraction component (4); A limiting component (6) is disposed on the top outer side of the extraction component (4).

2. The centrifugal balancing device for blood component preparation according to claim 1, characterized in that, The balancing component (3) includes: A balancing container (301) is disposed at the top of the balance body (2); A connecting pipe (302) extends through the top of the balancing container (301); An exhaust pipe (303) is disposed on one side of the connecting pipe (302).

3. The centrifugal balancing device for blood component preparation according to claim 1, characterized in that, The extraction component (4) includes an extraction tube (401) disposed at the top of the balancing component (3), and an extraction rod (402) that cooperates with the extraction tube (401) is disposed inside the extraction tube (401).

4. The centrifugal balancing device for blood component preparation according to claim 1, characterized in that, The snap-fit ​​assembly (5) includes a snap-fit ​​bracket (501) disposed on the outside of the extraction assembly (4). The snap-fit ​​bracket (501) has a connecting bracket (502) connected to the extraction assembly (4) inside. The connecting bracket (502) has symmetrically opened limit grooves (503) at both ends. The limit grooves (503) have springs (504) inside. One end of the spring (504) has a snap-fit ​​block (505) that cooperates with the limit groove (503). The snap-fit ​​block (505) has a pressing block (506) that cooperates with the limit groove (503) on the outside. The two ends of the snap-fit ​​bracket (501) are provided with snap-fit ​​grooves (507) that cooperate with the snap-fit ​​block (505).

5. The centrifugal balancing device for blood component preparation according to claim 4, characterized in that, The limiting component (6) includes a limiting frame (601) disposed on the top outer side of the extraction component (4). A limiting block (602) is provided at the top of the limiting frame (601). Slide grooves (603) are provided on both sides of the limiting block (602). A limiting rod (604) is provided at the inner top of the slide groove (603). A fixing frame (605) is connected to the top of the limiting rod (604). A support frame (606) is connected to the end of the fixing frame (605) away from the balance body (2).

6. The centrifugal balancing device for blood component preparation according to claim 5, characterized in that, The bottom end of the support frame (606) is connected to the top end of the workbench (1).

7. The centrifugal balancing device for blood component preparation according to claim 5, characterized in that, The support frame (606) is connected to the snap-fit ​​frame (501).

8. The centrifugal balancing device for blood component preparation according to claim 5, characterized in that, The cross-section of the fixing frame (605) is U-shaped.

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