Automatic PRP preparation equipment

Abstract

The utility model discloses automatic PRP preparation equipment which comprises a lower box body, an upper cover, a centrifugal assembly, a liquid level adjusting assembly, a visual identification device, a pressing plate assembly and a suction assembly, and an ejector pin of the liquid level adjusting assembly is driven by a first linear module to adjust the position of PRP in a centrifugal tube in a direct pushing mode. Compared with previous equipment, the centrifugal assembly has the advantages that the requirements for high integration and high automation are met, meanwhile, the design is more compact, and the structure of the centrifugal assembly is simplified; the liquid level adjusting assembly adopts a direct push type instead of a rotary type, so that the overall size and complexity of the equipment are reduced; in addition, the obliquely-arranged operation panel is reasonable in design and better conforms to human engineering, and the man-machine interaction performance is good.

Description

Technical Field

[0001] The utility model relates to the technical field of blood separation equipment, and particularly relates to an automatic PRP preparation device. Background Art

[0002] Since the mid-1990s, PRP has been widely used in various surgical operations, cardiac surgeries, and plastic surgeries, and is currently also widely used in medical aesthetics. However, how to conveniently and quickly extract highly concentrated and high-quality PRP from blood is the key to performing PRP surgeries well. Currently, PRP has been well clinically applied in medical surgical treatments, bone disease treatments, etc., and has a good therapeutic effect on the disease prevention and rehabilitation of patients. It will be widely clinically applied in the fields of medicine and aesthetic treatments.

[0003] The preparation of PRP is divided into two steps: centrifugation and aspiration. Among them, centrifugation is completed by a centrifuge, and aspiration is usually completed manually or by semi-automatic equipment. This makes it impossible to completely avoid the influence of personnel operations in PRP preparation. There are problems such as visual errors in manually identifying the position of PRP, inaccurate extraction, unqualified concentration and quality of extracted PRP, low automation level, slow preparation speed, etc., and it is also impossible to achieve operation standardization and process standardization. The applicant's previously applied patent (application number 202310336560.3, application date March 31, 2023) discloses an integrated automatic PRP centrifugation and extraction device, which is composed of main components such as a consumable component, a box body component, an upper cover component, a centrifugation component, a liquid level adjustment component, a pressing plate component, and an aspiration component. This device integrates the centrifugation and aspiration steps of preparing component blood, has a high automation level, simple operation, and realizes one-key preparation of PRP.

[0004] In the above device, the outer tube body of the centrifuge tube is connected to the bottom cover through a thread pair, and the rotating head of the interface adjustment component can drive the bottom cover to rotate, so as to realize the adjustment of the position of the component blood interface in the centrifuge tube. This type of rotating head requires a rotating motor and a linear module, and also has an adjustment part for positioning the lower end of the centrifuge tube. Therefore, it has the defects of relatively complex overall structure and inconvenient human-computer interaction. Based on this, it is necessary to further improve and design the integrated automatic PRP centrifugation and extraction device. Summary of the Utility Model

[0005] In order to overcome the above defects of the existing integrated automatic PRP centrifugation and extraction device, the utility model provides an automatic PRP preparation device.

[0006] The technical solution adopted by the utility model is as follows: a PRP automatic preparation device, comprising: a lower box and an upper cover, wherein a centrifugal zone and a suction zone are formed inside; a centrifugal assembly, arranged in the centrifugal zone, comprising a carrier for driving a centrifugal tube to rotate and centrifuge, wherein the carrier stays at a specified angle after the centrifugation is completed; a liquid level adjustment assembly, comprising a first linear module and a thimble, wherein the thimble rises with the first linear module, and is used to lift the adjustment piston at the lower end of the centrifugal tube to adjust the position of the PRP in the centrifugal tube to the suction position; a visual recognition device, which is used to identify the position of the PRP in the centrifugal tube and serves as a control signal source for the first linear module; a pressure plate assembly, comprising a second linear module and a pressure arm, wherein the pressure arm rises and falls with the second linear module, and is used to press down and fix the centrifugal tube, and drive a needle for extracting consumables to be inserted into the centrifugal tube; a suction assembly, arranged in the suction zone, comprising a third linear module and a slider, wherein the slider moves with the third linear module, and is used to pull the syringe of the consumables.

[0007] Preferably, the upper cover covers the centrifugal area and the upper part of the suction area.

[0008] Preferably, an inclined operation panel is provided at the junction of the front side and the upper side of the lower box.

[0009] Preferably, the centrifuge assembly also includes a bracket, a motor, a main shaft, a retaining ring and a hanging basket. The motor is installed on the bracket and drives the main shaft to rotate. The carrier is installed at the upper end of the main shaft. The retaining ring is hinged at both ends of the carrier. The hanging basket is assembled in the retaining ring, and the centrifuge tube is inserted in the hanging basket.

[0010] Preferably, a baffle bar which is in the same direction as the carrier is fixed on the main shaft, and the end of the baffle bar is used to abut against the lower end of the hanging basket.

[0011] Preferably, a support ring adapted to the clamping ring is provided on the upper portion of the hanging basket, and mutually distinguishable first positioning protrusions are provided on the upper surfaces of the two clamping rings, and first positioning holes are correspondingly provided on the lower surfaces of the two support rings.

[0012] Preferably, an adjustment hole for passing the ejector pin is provided at the lower end of the hanging basket, and the diameter of the adjustment hole is smaller than the outer diameter of the centrifuge tube.

[0013] Preferably, the motor is a servo motor equipped with an angle sensor and a controller. The controller controls the rotation of the motor through a closed-loop control algorithm based on a signal from the angle sensor, so that the carrier stays at a specified angle after centrifugation.

[0014] Preferably, the pressing plate assembly further includes: two horizontally stacked bayonet plates disposed at the front end of the pressing arm. The needle has an integral clamping plate, and the gap between the two bayonet plates is used to fix the clamping plate; at least one second positioning protrusion is provided on the upper and lower surfaces of the clamping plate, and the bayonet plate is correspondingly provided with a second positioning hole.

[0015] Preferably, the suction assembly further includes: a syringe fixing groove for fixing the syringe; a catheter fixing groove for fixing the catheter connecting the needle and the syringe.

[0016] The utility model has the following beneficial effects:

[0017] 1. High integration: By integrating the centrifugation component and the suction component, an integrated operation is realized, which greatly simplifies the operation process, eliminates the errors and variables brought by manual operation in the traditional process, and improves the standardization of operation and the normalization of the process;

[0018] 2. Automation: An automatic control system is adopted to automatically identify the position of PRP in the centrifuge tube consumable and adjust the interface, ensuring the accuracy and consistency of the suction operation, avoiding the problem of inaccurate extraction caused by visual errors in traditional manual operation, and realizing one-key PRP preparation, which greatly improves the convenience, efficiency and accuracy of operation;

[0019] 3. Simplified structure and compact design: Compared with the previous equipment, it is more compact in design, simplifies the structure of the centrifugation component, and at the same time the liquid level adjustment component adopts a direct push type instead of a rotary type, reducing the overall volume and complexity of the equipment.

[0020] 4. Convenient human-computer interaction: The inclined operation panel is reasonably positioned, more in line with ergonomics, and convenient for the operator to operate more conveniently. Description of the Drawings

[0021] Figure 1 is a schematic external view of an embodiment of the utility model (the upper cover is closed).

[0022] Figure 2 is a schematic external view of an embodiment of the utility model (the upper cover is opened).

[0023] Figure 3 is a schematic view of the centrifugation component in an embodiment of the utility model.

[0024] Figure 4 is a schematic view of the installation of the hanging basket and the snap ring in an embodiment of the utility model.

[0025] Figure 5 is a schematic view of the liquid level adjustment component, the pressing plate component and the suction component in an embodiment of the utility model.

[0026] Figure 6 It is a cross-sectional view of the centrifuge tube in the embodiment of the present utility model.

[0027] Figure 7 It is a cross-sectional view of the extraction consumables in the embodiment of the present utility model.

[0028] Figure 8 It is a schematic installation view of the clamping plate and the pressing arm in the embodiment of the present utility model.

[0029] Lower box body 1, centrifugal area 101, suction area 102;

[0030] Upper cover 2;

[0031] Centrifugal assembly 3, carrier 301, bracket 302, motor 303, main shaft 304, snap ring 305, hanging basket 306, retaining bar 307, retaining ring 308, first positioning protrusion 309, first positioning hole 310, adjustment hole 311;

[0032] Liquid level adjustment assembly 4, first linear module 401, ejector pin 402;

[0033] Visual recognition device 4d;

[0034] Pressing plate assembly 5, second linear module 501, pressing arm 502, bayonet plate 503, second positioning hole 504;

[0035] Suction assembly 6, third linear module 601, slider 602, syringe fixing groove 603, catheter fixing groove 604;

[0036] Operation panel 7;

[0037] Centrifuge tube 8, outer shell 801, central tube 802, adjustment piston 803;

[0038] Extraction consumables 9, needle 901, syringe 902, clamping plate 903, second positioning protrusion 904, catheter 905. Specific implementation mode

[0039] The present utility model will be further described below in conjunction with the embodiments and the accompanying drawings.

[0040] In the embodiment, as Figures 1 - 5As shown in the figure, it is a PRP automatic preparation device, including: a lower box body 1 and an upper cover 2, with a centrifugal area 101 and a suction area 102 formed inside; a centrifugal assembly 3, arranged in the centrifugal area 101, including a carrier 301 for driving the centrifuge tube 8 to rotate and centrifuge, and the carrier 301 stays at a specified angle after centrifugation; a liquid level adjustment assembly 4, including a first linear module 401 and a thimble 402, the thimble 402 rises with the first linear module 401, and is used to lift the adjustment piston 803 at the lower end of the centrifuge tube 8 to adjust the position of PRP in the centrifuge tube A to the suction position; a vision recognition device 4d, used to recognize the position of PRP in the centrifuge tube 8 as the control signal source of the first linear module 401; a pressing plate assembly 5, including a second linear module 501 and a pressing arm 502, the pressing arm 502 rises and falls with the second linear module 501, and is used to press down and fix the centrifuge tube 8, and drive the needle 901 of the extraction consumable 9 to insert into the centrifuge tube 8; a suction assembly 6, arranged in the suction area 102, including a third linear module 601 and a slider 602, the slider 602 moves with the third linear module 601, and is used to pull the syringe 902 of the consumable 9. This embodiment is similar to the principle of the PRP centrifugation and extraction integrated automatic device disclosed in the patent document (application number 202310336560.3, application date March 31, 2023). It integrates the centrifugation and suction steps of preparing component blood, has the characteristics of integration and automation, eliminates the errors and variables brought by manual operation in the traditional process, improves the standardization of operation and the normalization of the process, and realizes the one-key preparation of PRP. Particularly, the liquid level adjustment assembly 4 of this embodiment adopts a direct push adjustment method composed of the first linear module 401 and the thimble 402 to replace the existing rotary type. Correspondingly, as Figure 6 shown, the centrifuge tube 8 also needs to be improved, and the position of the PRP liquid level in the outer shell 801 is changed by the axial movement of the adjustment piston 803. Compared with the rotary type, the direct push type of this embodiment can significantly simplify the structure of the liquid level adjustment assembly 4, thereby reducing the complexity and overall volume of the device, and also improving the reliability of the device to a certain extent.

[0041] In the embodiment, as Figure 1 、 2 shown, the upper cover 2 covers the centrifugal area 101 and the suction area 102. In this embodiment, the main functional components such as the centrifugal assembly 3, the liquid level adjustment assembly 4, the pressing plate assembly 5 and the suction assembly 6 are all arranged in the internal space of the box body 1 and the upper cover 2, so that the overall device forms a "hidden" appearance. During the operation of the device, the appearance is more in line with that of an ordinary centrifuge and is more beautiful.

[0042] In the embodiment, as Figure 1 、 2As shown, the joint between the front side and the upper side of the lower box body 1 is provided with an inclined operation panel 7. The inclined operation panel is used for human-machine interaction, and displays the device status and parameters of the device in real time. Its position design is reasonable, more ergonomic, and convenient for the operator to operate conveniently and comfortably.

[0043] In the embodiment, Figure 3 , 4 As shown, the centrifuge assembly 3 also includes a bracket 302, a motor 303, a main shaft 304, a retaining ring 305 and a hanging basket 306. The motor 303 is installed on the bracket 302 and drives the main shaft 304 to rotate. The carrier 301 is installed at the upper end of the main shaft 304. The retaining ring 305 is hinged at both ends of the carrier 301. The hanging basket 306 is assembled in the retaining ring 305, and the centrifuge tube 8 is inserted in the hanging basket 306. The centrifugal assembly 3 of this embodiment is basically consistent with the patent document (application number 202310336560.3, application date 2023.03.31), and has the following characteristics: (1) The motor 303 adopts a servo motor, which is reliable and stable, avoids the centrifugal effect being affected by unstable rotation speed, and is convenient for adjusting process parameters; (2) When the carrier 301 stops rotating, the motor 303, under the control of the servo driver, resets the carrier 401 to a specified angle position after the rotation stops, so that the centrifuge tube 8 stays at the specified suction station and aligns with the liquid level adjustment assembly 4 and the pressure plate assembly 5, which is convenient for subsequent interface adjustment and automatic suction.

[0044] In the embodiment, Figure 3 As shown, a baffle 307 in the same direction as the carrier 301 is fixed on the main shaft 304, and the end of the baffle 307 is used to abut the lower end of the hanging basket 306. The baffle 307 has a certain elasticity and is used to isolate the carrier 301 from the main shaft 304, so as to prevent the hanging baskets 306 at both ends of the carrier 301 from colliding with the main shaft 304 under the action of the swing inertia, thereby ensuring the safety of the equipment.

[0045] In the embodiment, Figure 4 As shown, the upper part of the hanging basket 306 is provided with a support ring 308 adapted to the snap ring 305, the upper surfaces of the two snap rings 305 are provided with first positioning protrusions 309 that can be distinguished from each other, and the lower surfaces of the two support rings 308 are correspondingly provided with first positioning holes 310. This embodiment simplifies the assembly structure between the hanging basket 306 and the snap ring 305, and distinguishes them by different numbers or positions of the first positioning protrusions 309 and the first positioning holes 310. Figure 3 In the figure, the first positioning protrusion 309 and the first positioning hole 310 on the left side are in one group, and the first positioning protrusion 309 and the first positioning hole 310 on the right side are in two groups, which ensures that the clamping ring 305 corresponds to the hanging basket 306 one by one and will not be assembled incorrectly, thereby ensuring that the centrifuge tube 8 can stay at the specified suction position after the centrifugation is completed.

[0046] In the embodiment,Figure 4 As shown, an adjustment hole 311 for the thimble 402 to pass through is provided at the lower end of the hanging basket 306, and the aperture of the adjustment hole 311 is smaller than the outer diameter of the centrifuge tube 8. In this embodiment, the adjustment hole 311 is for the thimble 402 to pass through and also serves as a bottom support for the centrifuge tube 8, further simplifying the positioning and assembly structure between the hanging basket 306 and the centrifuge tube 8.

[0047] In the embodiment, the motor 303 is a servo motor, equipped with an angle sensor and a controller. The controller controls the rotation of the motor 303 according to the signal of the angle sensor through a closed-loop control algorithm, so that the carrier 301 stays at a specified angle after centrifugation. The angle sensor in this embodiment can be an encoder or a Hall effect sensor, which can accurately detect the rotation angle, and the controller can use a PID controller to implement the closed-loop control algorithm to accurately control the rotation angle of the motor 303, so that the carrier 301 stays at a specified angle after centrifugation, facilitating the subsequent accurate operation of the liquid level adjustment assembly 4, the pressing plate assembly 5 and the suction assembly 6 on the centrifuge tube 8.

[0048] In the embodiment, as Figure 5 、 8 shown, the pressing plate assembly 5 further includes: two horizontally stacked bayonet plates 503, arranged at the front end of the pressing arm 502. The needle 901 has an integral clamping plate 903, and the gap between the two bayonet plates 503 is used to fix the clamping plate 903. The bayonet plates 503 with this structure can easily put the clamping plate 903 in and out, and will not interfere with the needle 901, with firm installation and convenient operation.

[0049] In the embodiment, as Figure 8 shown, at least one second positioning protrusion 904 is provided on the upper and lower surfaces of the clamping plate 903, and the bayonet plate 503 is correspondingly provided with a second positioning hole 504. The second positioning protrusion 904 and the second positioning hole 504 are used for accurately positioning the clamping plate 903 to ensure the accurate position of the clamping plate 903, so as to ensure that the needle 901 can accurately align with the suction hole in the center of the centrifuge tube 8 and ensure the reliable operation of the suction action.

[0050] In the embodiment, as Figure 5 、 7 shown, the suction assembly 6 further includes: a syringe fixing groove 603 for fixing the syringe 902; a catheter fixing groove 604 for fixing the catheter 905 connecting the needle 901 and the syringe 902. In this embodiment, the syringe 902 and the catheter 905 are positioned by the syringe fixing groove 603 and the catheter fixing groove 604 respectively to facilitate the automatic and accurate suction of PRP by the third linear module 601.

[0051] Obviously, the above embodiments of the present utility model are merely examples for explaining the present utility model, rather than limitations on the implementation manners of the present utility model. Other obvious changes or variations derived from the essential spirit of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A PRP automatic preparation device, characterized in that: include: The lower box body (1) and the upper cover (2) form a centrifugal area (101) and a suction area (102) inside; A centrifuge assembly (3) is arranged in the centrifuge area (101), comprising a carrier (301) for driving the centrifuge tube (8) to rotate and centrifuge, wherein the carrier (301) stays at a specified angle after the centrifugation is completed; A liquid level adjustment assembly (4) comprising a first linear module (401) and a push pin (402), wherein the push pin (402) rises with the first linear module (401) and is used to lift the adjustment piston (803) at the lower end of the centrifuge tube (8) to adjust the position of the PRP in the centrifuge tube (A) to a suction position; A visual recognition device (4d) for identifying the position of the PRP in the centrifuge tube (8) and serving as a control signal source for the first linear module (401); A pressing plate assembly (5) comprising a second linear module (501) and a pressing arm (502), wherein the pressing arm (502) rises and falls along with the second linear module (501) and is used to press down and fix the centrifuge tube (8) and drive a needle (901) for extracting consumables (9) to be inserted into the centrifuge tube (8); The suction assembly (6) is arranged in the suction area (102), and comprises a third linear module (601) and a slider (602), wherein the slider (602) moves with the third linear module (601) and is used to pull the syringe (902) of the consumable (9).

2. The automatic PRP preparation device according to claim 1, characterized in that: The upper cover (2) covers the centrifugal area (101) and the upper part of the suction area (102).

3. The automatic PRP preparation device according to claim 1, characterized in that: An inclined operating panel (7) is provided at the junction of the front side and the upper side of the lower box body (1).

4. The automatic PRP preparation device according to claim 1, characterized in that: The centrifuge assembly (3) further comprises a bracket (302), a motor (303), a main shaft (304), a retaining ring (305) and a hanging basket (306); the motor (303) is mounted on the bracket (302) and drives the main shaft (304) to rotate; the carrier (301) is mounted on the upper end of the main shaft (304); the retaining ring (305) is hinged at both ends of the carrier (301); the hanging basket (306) is assembled in the retaining ring (305); and the centrifuge tube (8) is inserted into the hanging basket (306).

5. The automatic PRP preparation device according to claim 4, characterized in that: A blocking bar (307) in the same direction as the carrier (301) is fixed on the main shaft (304), and an end of the blocking bar (307) is used to abut against the lower end of the hanging basket (306).

6. The automatic PRP preparation device according to claim 4, characterized in that: The upper part of the hanging basket (306) is provided with a support ring (308) adapted to the clamping ring (305), the upper surfaces of the two clamping rings (305) are provided with first positioning protrusions (309) that can be distinguished from each other, and the lower surfaces of the two support rings (308) are correspondingly provided with first positioning holes (310).

7. The automatic PRP preparation device according to claim 4, characterized in that: An adjustment hole (311) for allowing the ejector pin (402) to pass through is provided at the lower end of the hanging basket (306), and the diameter of the adjustment hole (311) is smaller than the outer diameter of the centrifuge tube (8).

8. The automatic PRP preparation device according to claim 4, characterized in that: The motor (303) is a servo motor equipped with an angle sensor and a controller. The controller controls the rotation of the motor (303) through a closed-loop control algorithm according to a signal from the angle sensor, so that the carrier (301) stays at a specified angle after centrifugation.

9. The automatic PRP preparation device according to claim 1, characterized in that: The pressing plate assembly (5) further comprises: Two horizontally stacked bayonet plates (503) are arranged at the front end of the pressure arm (502); the needle head (901) has an integral clamping plate (903); the gap between the two bayonet plates (503) is used to fix the clamping plate (903); the upper and lower surfaces of the clamping plate (903) have at least one second positioning protrusion (904), and the bayonet plate (503) is correspondingly provided with a second positioning hole (504).

10. The automatic PRP preparation device according to claim 1, characterized in that: The suction assembly (6) further comprises: A syringe fixing groove (603) for fixing the syringe (902); The catheter fixing groove (604) is used to fix the catheter (905) connecting the needle (901) and the syringe (902).

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