PRP preparation centrifuge

Abstract

The application relates to the technical field of medical instruments, and discloses a PRP preparation centrifuge which comprises a main machine, a rotating shaft, clamping frames which are arranged at intervals along the circumference of the rotating shaft and comprise a connecting part and two clamping parts, the two clamping parts are fixedly installed on the connecting part, the connecting part is fixedly installed on the rotating shaft, a space is left between the two clamping parts on one clamping frame, and the clamping parts of two adjacent clamping frames are also left with a space; positioning rods which are arranged at two ends and pass through the clamping parts and are detachably connected with the clamping parts; and sleeves which are provided with sliding grooves, the sleeve is slid into the space between two adjacent clamping parts, the sliding groove is in sliding contact with the positioning rod, the positioning rod is moved, and the positioning rod is in abutment with the sleeve. The application can enhance the stability of the sleeve after installation.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and in particular to PRP preparation centrifuges. Background Technology

[0002] PRP preparation centrifuges are commonly used equipment in medical laboratories to separate different components from samples such as blood and body fluids.

[0003] The PRP preparation centrifuge includes a main unit, a rotating shaft, a rotating frame, and a sleeve detachably mounted on the rotating frame. The sleeve is used to hold a syringe. The main unit is equipped with a motor for driving the rotating shaft to rotate. The rotating frame has a U-shaped groove circumferentially opened along the rotating shaft. Positioning rods are symmetrically installed on the inner wall of the U-shaped groove. The sleeve has sliding grooves on its two symmetrical side walls for the positioning rods to slide into. After the syringe is inserted into the sleeve, the sleeve is slid into the two positioning rods so that the sleeve is installed in the U-shaped groove of the rotating frame.

[0004] Regarding the aforementioned technologies, it was found that when the sleeve is installed on the rotating frame, it mainly contacts the two positioning rods. When the rotor stops, the central axis of the two positioning rods rotates around the rotation center line. Therefore, the stability of the sleeve installed on the rotating frame needs to be improved. Utility Model Content

[0005] To improve the stability after sleeve installation, this application provides a PRP preparation centrifuge.

[0006] This application provides a PRP preparation centrifuge, which adopts the following technical solution: PRP preparation centrifuges include: Host; Shaft; A clamping frame is arranged circumferentially along the rotating shaft, including a connecting part and two clamping parts. The two clamping parts are fixedly installed on the connecting part, and the connecting part is fixedly installed on the rotating shaft. A gap is left between the two clamping parts on one clamping frame, and a gap is also left between the clamping parts of two adjacent clamping frames that are close to each other. The positioning rod has both ends passing through the clamping part and is detachably connected to the clamping part; The sleeve has a sliding groove, which slides between two adjacent clamping parts. The sliding groove is in sliding contact with the positioning rod. The positioning rod is movable and abuts against the sleeve.

[0007] By adopting the above technical solution, after the sleeve is inserted into the syringe, it slides between two adjacent clamping parts. The sleeve and the positioning rod slide in contact, and the positioning rod can also be moved so that it can abut against the sleeve, thereby restricting the rotation of the sleeve and enhancing the stability of the sleeve after installation.

[0008] Optionally, the spacing between the two clamping parts on one clamping frame is different from the spacing between the clamping parts of two adjacent clamping frames that are close to each other, but the two adjacent positioning rods extend radially with the same center.

[0009] By adopting the above technical solution, the spacing of different sizes can be flexibly adjusted according to the actual size and shape of the sleeve to better adapt to sleeves of different specifications and improve the versatility of the equipment. The adjacent positioning rods extend radially with the same center, ensuring the regularity and symmetry of the distribution of the positioning rods, so that the positioning rods can abut against the outer wall of sleeves of different sizes, further improving the stability of the sleeve installation and the centrifugal effect.

[0010] Optionally, the positioning rod and the clamping part are threaded together.

[0011] By adopting the above technical solution, the threaded connection makes the connection and disassembly of the positioning rod and the clamping part more convenient and quick, facilitating the installation, adjustment, and replacement of the positioning rod. At the same time, the threaded connection has a certain degree of self-locking, ensuring a stable connection between the positioning rod and the clamping part during centrifuge operation.

[0012] Optionally, there are at least two positioning rods on the clamping part, and the two positioning rods on the clamping part are distributed in the vertical direction.

[0013] By adopting the above technical solution, multiple positioning rods distributed along the vertical direction can position and fix the sleeve from different heights, further enhancing the stability of the sleeve in the vertical direction.

[0014] Optionally, the two positioning rods are of different lengths, with the shorter positioning rod positioned above the longer positioning rod, and the groove depth and the length of the positioning rod are adapted to each other.

[0015] By adopting the above technical solution, positioning rods of varying lengths and specific positions can be matched with sliding grooves of appropriate depth to more accurately control the installation position of the sleeve. The length and position of the positioning rods can be flexibly adjusted according to the size and installation requirements of different sleeves, thereby improving the adaptability and flexibility of the equipment.

[0016] Optionally, the inner wall of the groove is provided with a mating surface for fitting with the end face of the positioning rod.

[0017] By adopting the above technical solution, the setting of the contact surface increases the contact area between the end face of the positioning rod and the inner wall of the slide groove, making the support and fixing effect of the positioning rod on the sleeve more stable.

[0018] Optionally, a pressing rod is threadedly connected to the clamping part, and one end of the pressing rod presses against the positioning rod.

[0019] By adopting the above technical solution, during use, after the positioning rod is installed, the pressure rod is rotated to press against the positioning rod, thereby enhancing the connection stability.

[0020] Optionally, the end of the positioning rod is an inclined surface, which is completely in contact with the inner wall of the groove.

[0021] By adopting the above technical solution, the inclined surface can increase the contact area, disperse pressure, reduce wear, and enhance fit.

[0022] In summary, this application includes at least one of the following beneficial effects: 1. The sleeve slides between two adjacent clamping parts, and the groove of the sleeve slides into contact with the positioning rod. Multiple positioning rods distributed along the vertical direction can position and fix the sleeve from different heights, further enhancing the stability of the sleeve in the vertical direction. 2. Different spacing sizes can flexibly adapt to different specifications of sleeves, and the positioning rod can abut against the outer wall of sleeves of different sizes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is a top view of the clamping frame distribution in Embodiment 1 of this application; Figure 3 This is a schematic diagram of the overall structure of the clamping frame distribution in Embodiment 1 of this application; Figure 4 This is a cross-sectional view of the positioning rod and sleeve assembly in Embodiment 1 of this application; Figure 5 This is a schematic diagram of the overall structure of the clamping frame distribution in Embodiment 2 of this application; Figure 6 This is a cross-sectional view of the positioning rod and sleeve assembly in Embodiment 2 of this application.

[0024] Explanation of reference numerals in the attached drawings: 10, main unit; 20, rotating shaft; 30, clamping frame; 31, connecting part; 32, clamping part; 40, positioning rod; 41, inclined surface; 50, sleeve; 51, sliding groove; 60, pressing rod. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail.

[0026] This application discloses a PRP preparation centrifuge.

[0027] Example 1: Reference Figure 1The PRP preparation centrifuge includes a main unit 10, a rotating shaft 20, a clamping frame 30, a positioning rod 40, and a sleeve 50. The main unit 10, as the core control part of the entire equipment, houses a motor for driving the rotating shaft 20 to rotate. The rotating shaft 20 is vertically mounted on the main unit 10 and is a key transmission component for the centrifuge to perform its centrifugation function.

[0028] Reference Figure 1 and Figure 2 The clamping frames 30 are evenly distributed circumferentially along the rotating shaft 20. Each clamping frame 30 consists of a connecting part 31 and two clamping parts 32. The connecting part 31 has an arc-shaped plate structure and is fixedly installed on the rotating shaft 20 by bolts. The two clamping parts 32 are symmetrically and fixedly installed on both sides of the connecting part 31. On the same clamping frame 30, there is a certain distance between the two clamping parts 32; at the same time, there is also a distance between the clamping parts 32 of two adjacent clamping frames 30 that are close to each other, and the dimensions of these two distances are different. The two ends of the positioning rod 40 pass through the clamping parts 32 respectively and are detachably connected to the clamping parts 32 by means of threaded connection. Along the circumferential direction of the rotating shaft 20, the two adjacent positioning rods 40 extend radially from the same center. This design ensures the regularity and symmetry of the distribution of the positioning rods 40.

[0029] Reference Figure 3 Each clamping part 32 is equipped with at least two positioning rods 40, which are distributed vertically. The two positioning rods 40 are of different lengths, with the shorter positioning rod 40 positioned above the longer positioning rod 40.

[0030] Reference Figure 4 The sleeve 50 is used to accommodate the syringe. Slots 51 are formed on the symmetrical side walls of the sleeve 50, and the depth of the slots 51 is adapted to the length of the positioning rod 40. When the sleeve 50 containing the syringe is slid between two adjacent clamping parts 32, the slots 51 on the sleeve 50 slide into contact with the positioning rod 40. By moving the positioning rod 40, it abuts against the sleeve 50, thereby restricting the rotation of the sleeve 50. Furthermore, the inner wall of the slots 51 is provided with a contact surface for fitting against the end face of the positioning rod 40, increasing the contact area between the end face of the positioning rod 40 and the inner wall of the slots 51, making the support and fixation of the positioning rod 40 on the sleeve 50 more stable.

[0031] The implementation principle of the PRP preparation centrifuge in this application embodiment is as follows: Depending on the size and shape of the sleeve 50 to be installed, the sleeve 50 is installed between the two clamping parts 32 of a clamping frame 30, or between two adjacent clamping parts 32 of two clamping frames 30, to better accommodate sleeves 50 of different specifications. Positioning rods 40 of varying lengths and specific positions cooperate with sliding grooves 51 that match the groove depth, enabling more precise control of the sleeve 50's installation position. The length and position of the positioning rods 40 can be flexibly adjusted according to the size and installation requirements of different sleeves 50, improving the adaptability and flexibility of the equipment. Multiple positioning rods 40 distributed vertically can position and fix the sleeve 50 from different heights, further enhancing the vertical stability of the sleeve 50, thereby improving the stability and centrifugal effect after installation.

[0032] Example 2: The difference between Embodiment 2 and Embodiment 1 lies in the number and installation method of the positioning rods 40. Each clamping part 32 has only one positioning rod 40, with both ends of the positioning rod 40 passing through the clamping part 32 and detachably connected to it. A pressing rod 60 is threaded onto the clamping part 32, with one end of the pressing rod 60 pressing against the positioning rod 40. After the positioning rod 40 is installed, rotating the pressing rod 60 ensures it presses firmly against the positioning rod 40, thereby enhancing the connection stability between the positioning rod 40 and the clamping part 32 and preventing the positioning rod 40 from loosening during centrifuge operation.

[0033] The end of the positioning rod 40 is designed as an inclined surface 41. When the sleeve 50 slides between two adjacent clamping parts 32, the groove 51 on the sleeve 50 contacts the positioning rod 40, and the inclined surface 41 at the end of the positioning rod 40 completely fits against the inner wall of the groove 51. This design of the inclined surface 41 can increase the contact area between the positioning rod 40 and the inner wall of the groove 51.

[0034] In actual operation, the syringe is first inserted into the sleeve 50, and then the sleeve 50 is slid between two adjacent clamping parts 32, so that the sliding groove 51 on the sleeve 50 makes sliding contact with the positioning rod 40. Since the inclined surface 41 at the end of the positioning rod 40 fits tightly with the inner wall of the sliding groove 51, and the stability of the positioning rod 40 can be further enhanced by the pressing rod 60, the rotation of the sleeve 50 is effectively restricted, and the stability of the sleeve 50 after installation is greatly improved.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. PRP preparation centrifuge, characterized in that include: Host (10); Rotating shaft (20); The clamping frame (30) is arranged circumferentially along the rotating shaft (20), including a connecting part (31) and two clamping parts (32). The two clamping parts (32) are fixedly installed on the connecting part (31), and the connecting part (31) is fixedly installed on the rotating shaft (20). There is a gap between the two clamping parts (32) on one clamping frame (30), and there is also a gap between the clamping parts (32) of two adjacent clamping frames (30) that are close to each other. The positioning rod (40) passes through the clamping part (32) at both ends and is detachably connected to the clamping part (32); The sleeve (50) has a groove (51) and slides between two adjacent clamping parts (32). The groove (51) slides in contact with the positioning rod (40). The positioning rod (40) moves and abuts against the sleeve (50).

2. The PRP preparation centrifuge of claim 1, wherein, The spacing between the two clamping parts (32) on one clamping frame (30) is different from the spacing between the clamping parts (32) of two adjacent clamping frames (30) that are close to each other, but the two adjacent positioning rods (40) extend radially with the same center.

3. The PRP preparation centrifuge of claim 2, wherein, The positioning rod (40) and the clamping part (32) are threaded together.

4. The PRP preparation centrifuge of claim 3, wherein, There are at least two positioning rods (40) on the clamping part (32), and the two positioning rods (40) on the clamping part (32) are distributed in the vertical direction.

5. The PRP preparation centrifuge of claim 4, wherein, The two positioning rods (40) are of different lengths, with the shorter positioning rod (40) located above the longer positioning rod (40), and the groove depth of the slide (51) is adapted to the length of the positioning rod (40).

6. The PRP preparation centrifuge of claim 5, wherein, The inner wall of the groove (51) is provided with a fitting surface for fitting with the end face of the positioning rod (40).

7. The PRP preparation centrifuge of claim 2, wherein A pressing rod (60) is threaded onto the clamping part (32), and one end of the pressing rod (60) presses against the positioning rod (40).

8. The PRP preparation centrifuge of claim 7, wherein, The end of the positioning rod (40) is an inclined surface (41), which is completely attached to the inner wall of the groove (51).

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