A platelet-rich plasma separator

Abstract

The utility model relates to medical equipment technical field discloses a kind of platelet-rich plasma separators, comprising: round plate, the outer surface of the round plate is fixedly installed with limit block.This kind of platelet-rich plasma separator, due to the design of movement mechanism, reach the flexible adjustment effect of centrifugal radius without replacing centrifugal cup, can be according to different patient blood viscosity, hematocrit and other indexes, accurately control centrifugal force, avoid platelet residue or excessive activation, significantly improve platelet-rich plasma preparation quality and biological activity.Discard the cumbersome operation of traditional replacement centrifugal cup, substantially improve operation efficiency, while reducing the mismatch risk caused by frequent replacement of spare parts, reduce the operation burden of medical staff, reduce equipment spare parts procurement cost and management difficulty, effectively improve the versatility and utilization of equipment, reduce hospital equipment procurement and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and more specifically, to a platelet-rich plasma separator. Background Technology

[0002] In modern medicine, platelet-rich plasma (PRP) therapy has been widely used in orthopedics, plastic surgery, dentistry, and wound healing due to its significant efficacy in promoting tissue repair and regeneration. PRP, a platelet concentrate obtained by centrifuging autologous whole blood, releases various bioactive substances such as growth factors and cytokines upon activation, providing crucial support for tissue repair. Centrifugation is a key step in PRP preparation technology to obtain high concentrations and high activity of platelets.

[0003] Currently, most platelet-rich plasma separators used in clinical practice employ a fixed centrifugation radius design. This structure cannot flexibly adjust centrifugation parameters according to individual patient characteristics such as blood viscosity and hematocrit. For example, when dealing with samples with high blood viscosity or abnormal hematocrit, a fixed centrifugation radius may result in insufficient centrifugal force, leaving platelets in the red blood cell layer and reducing recovery rates; or excessive centrifugal force may cause over-activation and structural damage of platelets, affecting the bioactivity and therapeutic efficacy of platelet-rich plasma. Existing plasma separators, if the centrifugation radius needs to be changed to adapt to different sample characteristics, can only achieve this by replacing the centrifugation cup with one of different sizes. However, this method is cumbersome, and each cup replacement is time-consuming, thus requiring improvement. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a platelet-rich plasma separator with the advantage of being able to adjust the centrifugation radius according to usage requirements.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a platelet-rich plasma separator, comprising:

[0006] A circular plate, wherein a limit block is fixedly installed on the outer surface of the circular plate;

[0007] A motion mechanism is disposed at the top of the circular plate;

[0008] The motion mechanism includes a screw, the bottom end of which is fixedly connected to the top end of a circular plate. A screwing block is threaded onto the outer surface of the screw. A ring is movably fitted inside the bottom end of the screwing block. A first hinge block is fixedly installed on the outer surface of the ring. A moving rod is hinged to the outer surface of the first hinge block. A second hinge block is hinged to the end of the moving rod away from the first hinge block. A slider is fixedly installed at the bottom end of the second hinge block. The outer surface of the slider is slidably connected to the interior of a limiting block. A centrifugal cup is fixedly fitted inside the slider.

[0009] As a preferred embodiment of this utility model, a test tube is movably placed inside the centrifuge cup, and an end cap is threaded onto the top of the test tube, with a pull ring fixedly installed on the top of the end cap.

[0010] As a preferred embodiment of this utility model, both the outer surfaces of the screwing block and the end cap are provided with protrusions, which are made of rubber.

[0011] As a preferred embodiment of this utility model, a pointer is fixedly installed at the top of the slider, a ruler is abutted at the bottom of the pointer, and the ruler is fixedly connected to the outer surface of the limiting block.

[0012] As a preferred embodiment of this utility model, a fixing block is movably sleeved at the top end of the screw, and a housing is fixedly installed at the top end of the fixing block.

[0013] As a preferred embodiment of this utility model, a partition is fixedly installed inside the housing, a motor is fixedly installed at the bottom end of the partition, a rotating shaft is fixedly sleeved at the output end of the motor, and the top end of the rotating shaft is fixedly sleeved inside the bottom end of the circular plate.

[0014] As a preferred embodiment of this utility model, a rotating ring is fixedly installed at the end of the limiting block away from the circular plate, a fixed ring is movably sleeved on the outer surface of the rotating ring, a support rod is fixedly installed at the bottom end of the fixed ring, and the bottom end of the support rod is fixedly connected to the top end of the partition.

[0015] As a preferred embodiment of this utility model, a display is embedded in the housing, and the display is a capacitive touch screen.

[0016] As a preferred embodiment of this utility model, a movable door is movably installed on the housing, and a pull block is fixedly installed on the front of the movable door.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This platelet-rich plasma separator, due to its motion mechanism design, allows for flexible adjustment of the centrifugation radius without the need to replace the centrifuge cup. It can precisely control the centrifugal force based on factors such as blood viscosity and hematocrit of different patients, avoiding platelet residue or over-activation, and significantly improving the quality and bioactivity of platelet-rich plasma preparation. It eliminates the cumbersome operation of traditional centrifuge cup replacement, greatly improving operational efficiency. It also reduces the risk of mismatches caused by frequent parts changes, lowers the operational burden on medical staff, reduces equipment parts procurement costs and management complexity, effectively improves the equipment's versatility and utilization rate, and reduces hospital equipment procurement and maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the motion mechanism of this utility model;

[0022] Figure 4 This is a cross-sectional view of the screw of this utility model;

[0023] Figure 5 This is a cross-sectional view of the limiting block of this utility model;

[0024] Figure 6 This is a schematic diagram of the end cap structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the structure of the ruler of this utility model.

[0026] In the diagram: 1. Circular plate; 2. Limiting block; 3. Screw; 4. Tightening block; 5. Ring; 6. First hinge block; 7. Moving rod; 8. Second hinge block; 9. Slider; 10. Centrifuge cup; 11. Test tube; 12. End cap; 13. Pull ring; 14. Protrusion; 15. Fixing block; 16. Housing; 17. Partition; 18. Motor; 19. Shaft; 20. Rotating ring; 21. Fixing ring; 22. Support rod; 23. Display; 24. Movable door; 25. Pull block; 26. Pointer; 27. Ruler. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 7 As shown, this utility model provides a platelet-rich plasma separator, comprising:

[0029] Circular plate 1, with limit block 2 fixedly installed on the outer surface of circular plate 1;

[0030] The motion mechanism is located at the top of the circular plate 1;

[0031] The motion mechanism includes a screw 3, the bottom end of which is fixedly connected to the top end of the circular plate 1. A screwing block 4 is threaded onto the outer surface of the screw 3. A ring 5 is movably sleeved inside the bottom end of the screwing block 4. A first hinge block 6 is fixedly installed on the outer surface of the ring 5. A moving rod 7 is hinged to the outer surface of the first hinge block 6. A second hinge block 8 is hinged to the end of the moving rod 7 away from the first hinge block 6. A slider 9 is fixedly installed at the bottom end of the second hinge block 8. The outer surface of the slider 9 is slidably connected to the inside of the limiting block 2. A centrifugal cup 10 is fixedly sleeved inside the slider 9.

[0032] The circular plate 1 serves as the basic load-bearing component, providing an installation base for other structures. The limiting block 2 is fixed to the outer surface of the circular plate 1 and is used to limit and guide the movement of the slider 9. The screw 3 in the motion mechanism is connected to the circular plate 1, providing a track for the movement of the twisting block 4. The twisting block 4 is threadedly engaged with the screw 3, and moves up and down by rotation, thereby driving the ring 5 to move. The ring 5 transmits the motion to the slider 9 through the transmission structure composed of the first hinge block 6, the motion rod 7, and the second hinge block 8, so that the slider 9 slides within the limiting block 2, ultimately adjusting the position of the centrifuge cup 10 to change the centrifugal radius.

[0033] The centrifuge cup 10 contains a test tube 11 that is movably placed inside. The top of the test tube 11 is threaded with an end cap 12, and a pull ring 13 is fixedly installed on the top of the end cap 12.

[0034] The centrifuge cup 10 is used to place the test tube 11 containing the blood sample, providing a carrying space for the test tube 11. The test tube 11 is used to hold the blood sample to be separated. The end cap 12 is threadedly connected to the test tube 11, which serves to seal the test tube 11 and prevent the sample from spilling and contaminating. The pull ring 13 is fixed to the top of the end cap 12, making it easy for the operator to pick up and move the test tube 11.

[0035] The outer surfaces of the screwing block 4 and the end cap 12 are both provided with protrusions 14, which are made of rubber.

[0036] The rubber protrusions 14 on the outer surfaces of the screw block 4 and the end cap 12 can increase the friction of the contact surface, making it easier for operators to screw the screw block 4 to adjust the centrifugation radius and screw the end cap 12 to seal and open the test tube 11, thus improving the convenience and comfort of use.

[0037] The top of the slider 9 is fixedly mounted with a pointer 26, the bottom of the pointer 26 is abutted against a scale 27, and the scale 27 is fixedly connected to the outer surface of the limit block 2.

[0038] The pointer 26 at the top of the slider 9 moves with the slider 9. The scale 27 is fixed to the outer surface of the limit block 2. The pointer 26 and the scale 27 work together to intuitively show the operator the moving distance of the slider 9, thereby reflecting the position change of the centrifuge cup 10, that is, the adjustment of the centrifuge radius, which is convenient for precise control of the centrifuge radius.

[0039] Among them, the top end of the screw 3 is movably sleeved with a fixing block 15, and the top end of the fixing block 15 is fixedly installed with a housing 16.

[0040] The fixed block 15, which is movably sleeved at the top of the screw 3, can reduce the shaking of the screw 3 during rotation.

[0041] The housing 16 has a partition 17 fixedly installed inside, a motor 18 fixedly installed at the bottom of the partition 17, a rotating shaft 19 fixedly connected to the output end of the motor 18, and the top end of the rotating shaft 19 fixedly connected to the bottom end of the circular plate 1.

[0042] The partition 17 inside the housing 16 is used to install and fix the motor 18. The motor 18 serves as a power source and transmits power to the circular plate 1 through the rotating shaft 19 at the output end, thereby driving the circular plate 1 to rotate and thus realizing the centrifugation separation operation of the blood sample.

[0043] Among them, a rotating ring 20 is fixedly installed at the end of the limiting block 2 away from the circular plate 1, a fixed ring 21 is movably sleeved on the outer surface of the rotating ring 20, a support rod 22 is fixedly installed at the bottom end of the fixed ring 21, and the bottom end of the support rod 22 is fixedly connected to the top end of the partition plate 17.

[0044] The rotating ring 20 at one end of the limiting block 2 rotates together with the limiting block 2 during centrifugation. The fixed ring 21 is movably connected to the rotating ring 20, providing support and guidance for the rotating ring 20 and ensuring the smooth rotation of the limiting block 2. The support rod 22 connects the fixed ring 21 and the partition 17, fixing the fixed ring 21 inside the casing 16, making the entire rotating structure more stable and ensuring the stable operation of the centrifugation process.

[0045] The casing 16 is equipped with a display 23, which is a capacitive touch screen.

[0046] The display 23 embedded in the housing 16 provides a human-machine interface for operators. Operators can set parameters such as centrifugation time and speed on the display 23 through touch operation. At the same time, the display 23 can also display the operating status of the equipment and centrifugation parameters in real time, which makes it convenient for operators to monitor the centrifugation process.

[0047] The housing 16 has a movable door 24, and a pull block 25 is fixedly installed on the front of the movable door 24.

[0048] The movable door 24, which is installed on the casing 16, is used to open before centrifugation to facilitate the placement and removal of test tubes 11 by the operator. After the operation is completed, the movable door 24 is closed to protect the internal components of the casing 16, preventing foreign objects from entering and the operator from accidentally contacting the rotating parts. The pull block 25 is fixed to the front of the movable door 24 to facilitate the operator to open and close the movable door 24.

[0049] Working principle and usage process of this utility model:

[0050] When the operator needs to separate platelets from the blood, the operator first pulls the lever 25 on the front of the movable door 24 on the housing 16 to open the movable door 24. Then, the test tube 11 containing the blood sample is placed into the centrifuge cup 10. Given the differences in blood viscosity, hematocrit, and other indicators among different patients, the operator, according to actual needs, twists the screw block 4, which is threaded onto the screw 3, causing it to move downwards along the outer surface of the screw 3 during rotation. Since the bottom end of the screw block 4 is movably fitted with a ring 5, the downward movement of the screw block 4 causes the ring 5 to descend synchronously. The ring 5 then drives the moving rod 7 to swing via the first hinge block 6. The moving rod 7 further pushes the second hinge block 8, causing the slider 9, fixedly installed at the bottom end of the second hinge block 8, to slide outwards inside the limiting block 2, moving the centrifuge cup 10 outwards and achieving flexible adjustment of the centrifugation radius. During this process, the pointer 26 at the top of the slider 9 moves along the scale 27 on the outer surface of the limit block 2, providing the operator with a clear displacement reference.

[0051] After adjustment, the operator closes the movable door 24, sets the centrifugation time and speed parameters via the display 23 embedded in the casing 16, and starts the motor 18 after confirming that everything is correct. The rotating shaft 19 at the output end of the motor 18 drives the circular plate 1 to rotate at high speed. Because the top of the screw 3 is movably fitted with a fixing block 15, the screw 3 can be effectively prevented from shaking during rotation. At the same time, the limiting block 2 drives the rotating ring 20 to rotate smoothly inside the fixing ring 21. Due to the design of the rotating ring 20 and the fixing ring 21, the centrifugation process is ensured to be stable and reliable, thus completing the centrifugation separation operation of the blood. Furthermore, thanks to the twisting block 4 and the rubber protrusions 14 on the outer surface of the end cap 12, the friction when gripping is greatly improved, making it convenient for the operator to perform the twisting operation. After centrifugation, the test tube 11 can be easily removed from the centrifuge cup 10 through the pull ring 13 at the top of the end cap 12.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A platelet-rich plasma separator, characterized in that, Including: A circular plate (1) is provided, and a limiting block (2) is fixedly installed on the outer surface of the circular plate (1); A motion mechanism is disposed at the top of the circular plate (1); The motion mechanism includes a screw (3), the bottom end of which is fixedly connected to the top end of a circular plate (1). A screwing block (4) is threaded onto the outer surface of the screw (3). A ring (5) is movably fitted inside the bottom end of the screwing block (4). A first hinge block (6) is fixedly installed on the outer surface of the ring (5). A moving rod (7) is hinged onto the outer surface of the first hinge block (6). A second hinge block (8) is hinged to the end of the moving rod (7) away from the first hinge block (6). A slider (9) is fixedly installed at the bottom end of the second hinge block (8). The outer surface of the slider (9) is slidably connected to the inside of a limiting block (2). A centrifugal cup (10) is fixedly fitted inside the slider (9).

2. The platelet-rich plasma separator according to claim 1, characterized in that: The centrifuge cup (10) contains a test tube (11) which is movably placed inside. The top of the test tube (11) is threaded with an end cap (12), and a pull ring (13) is fixedly installed on the top of the end cap (12).

3. The platelet-rich plasma separator according to claim 2, characterized in that: The outer surfaces of the screwing block (4) and the end cap (12) are provided with protrusions (14), which are made of rubber.

4. The platelet-rich plasma separator according to claim 1, characterized in that: A pointer (26) is fixedly installed at the top of the slider (9), and a ruler (27) is abutted at the bottom of the pointer (26). The ruler (27) is fixedly connected to the outer surface of the limiting block (2).

5. A platelet-rich plasma separator according to claim 1, characterized in that: The top end of the screw (3) is movably sleeved with a fixing block (15), and the top end of the fixing block (15) is fixedly installed with a housing (16).

6. A platelet-rich plasma separator according to claim 5, characterized in that: A partition (17) is fixedly installed inside the housing (16). A motor (18) is fixedly installed at the bottom end of the partition (17). A rotating shaft (19) is fixedly sleeved at the output end of the motor (18). The top end of the rotating shaft (19) is fixedly sleeved inside the bottom end of the circular plate (1).

7. A platelet-rich plasma separator according to claim 1, characterized in that: The limiting block (2) has a rotating ring (20) fixedly installed at one end away from the circular plate (1). A fixed ring (21) is movably sleeved on the outer surface of the rotating ring (20). A support rod (22) is fixedly installed at the bottom end of the fixed ring (21). The bottom end of the support rod (22) is fixedly connected to the top end of the partition plate (17).

8. A platelet-rich plasma separator according to claim 5, characterized in that: The housing (16) is equipped with a display (23), which is a capacitive touch screen.

9. A platelet-rich plasma separator according to claim 5, characterized in that: A movable door (24) is movably installed on the housing (16), and a pull block (25) is fixedly installed on the front of the movable door (24).

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