An automated adipose-derived regenerative cell extraction pretreatment device

Abstract

This utility model discloses an automated pretreatment device for extracting adipose-derived regenerative cells, relating to the field of medical device technology. Two lead screw drive linear modules are fixedly connected to the upper and lower sides of a frame, respectively. A syringe clamp assembly is fixedly connected to the vertical surface of the inner wall of the frame. Two syringe fixing assemblies are fixedly installed on the lead screw drive linear modules. Limiting components are fixedly connected to the frame and the lead screw drive linear modules. The two syringes are fixedly connected via a fat emulsification conversion head to form a closed channel. The tail ends of the syringe barrels are inserted into the grooves of the lead screw drive linear modules and fixed by the syringe fixing assemblies. The front sides of the syringe barrels are snap-fitted to the syringe clamp assembly. This utility model achieves precise control of injection force, injection speed, injection frequency, and injection stroke, ensuring consistent fat volume per injection, adapting to different emulsification requirements, reducing cell damage, and improving processing efficiency and standardization.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to an automated pretreatment device for extracting adipose-derived regenerative cells. Background Technology

[0002] Adipose-derived regenerative cells are gel-like substances rich in adipose-derived stem cells, vascular endothelial cells, and extracellular matrix (such as collagen and hyaluronic acid), and are widely used in tissue regeneration, wound repair, and cosmetic fillers. The core preparation process involves "fat extraction → adipose tissue disruption and emulsification → centrifugation purification → extraction and separation → obtaining high-purity adipose-derived regenerative cell gel," with adipose tissue disruption and emulsification being the key steps determining the activity and purity of the final product.

[0003] Current fat emulsification processes primarily rely on manual syringe injection: minced fat tissue is loaded into a 20ml sterile syringe, which is then connected to another empty syringe via an emulsification converter. The injection is repeated manually several times, utilizing shear force and pressure to disrupt the fat cell structure and form a milky suspension. However, this method of repeated manual syringe injection has the following significant drawbacks: First, the parameters are uncontrollable. Different operators have different judgments on the injection speed, force, and number of times, resulting in insufficient release of lipid droplets and affecting the consistency of the product.

[0004] Second, manual operation is inefficient, requires repeated operations when preparing large quantities, and has high injection resistance, which can easily cause operator fatigue and further reduce stability.

[0005] Third, the lack of unified injection parameter standards makes it difficult to ensure consistent treatment results for different batches and different operators. Utility Model Content

[0006] To address the shortcomings of existing manual syringe injection methods mentioned in the background section, the purpose of this invention is to provide an automated pretreatment device for extracting adipose-derived regenerative cells.

[0007] This utility model discloses an automated pretreatment device for extracting adipose-derived regenerative cells, comprising a lead screw drive linear module, a syringe fixing assembly, a limiting assembly, a frame, and a syringe clamp assembly. Two lead screw drive linear modules are respectively fixedly connected to the upper and lower sides of the frame. The syringe clamp assembly is fixedly connected to the vertical surface of the inner side wall of the frame. Two syringe fixing assemblies are respectively fixedly installed on the lead screw drive linear module. The limiting assembly is fixedly connected to the frame and the lead screw drive linear module, and the limiting assembly cooperates with the lead screw drive linear module. Two syringes are fixedly connected through a fat emulsification conversion head to form a closed channel. The tail of the syringe barrel is inserted into the groove of the lead screw drive linear module and fixed by the syringe fixing assembly. The front side of the syringe barrel is snap-fitted to the syringe clamp assembly.

[0008] As a preferred embodiment: the lead screw drive linear module includes a stepper motor, an outer fixed plate, an inner fixed plate, a lead screw, a push-in moving platform, a lead screw nut, a guide sleeve, a guide rod, and a connecting rod; the outer fixed plate and the inner fixed plate are fixedly connected by the connecting rod; the stepper motor is fixedly connected to the outer side wall of the outer fixed plate by bolts; the shaft of the stepper motor is fixedly connected to one end of the lead screw by a coupling; the other end of the lead screw is fixedly connected to a bearing in a bearing housing; the bearing housing is fixedly connected to the outer side wall of the inner fixed plate; the external thread of the lead screw is connected to the internal thread of the lead screw nut; the lead screw nut is fixedly connected to a slot in the middle of the push-in moving platform by bolts; two guide sleeves are fixedly connected to slots on both sides of the push-in moving platform by bolts; the guide sleeves are movably connected to the guide rods; and the two ends of the two guide rods are fixedly connected to the inner side walls of the outer fixed plate and the inner fixed plate, respectively.

[0009] As a preferred embodiment: the outer edge of the inner fixing plate is provided with a recessed syringe insertion groove, and two syringe fixing assemblies are fixedly connected to the inner side wall of the inner fixing plate. The two syringe fixing assemblies are respectively located on both sides of the syringe insertion groove. The syringe barrel tail is inserted into the syringe insertion groove, and the syringe barrel tail is fixed by the syringe fixing assemblies.

[0010] As a preferred embodiment: the syringe fixing assembly includes a tail clip, a spring, and a clip fixing bolt; the tail of the tail clip contacts the upper end face of the spring, and the clip fixing bolt passes through the fixing hole of the tail clip and the inside of the spring to fix the tail clip to the inner fixing plate.

[0011] As a preferred embodiment: the limiting component includes a limit switch and a pressure sensor; the limit switch is fixedly connected to the side wall of the frame by bolts, and the limit contact of the limit switch cooperates with the injection moving platform of the linear module of the screw drive; a pressure sensor is fixedly connected to the inner side wall of the injection moving platform, and the pressure sensor cooperates with the end of the syringe plunger.

[0012] As a preferred embodiment: the frame includes vertical profiles and horizontal profiles; the vertical profiles are fixedly connected to the outer fixing plate and inner fixing plate of the screw drive linear module by means of angle brackets and bolts, respectively, and the horizontal profiles are fixedly connected to the outer fixing plate of the lower screw drive linear module by means of angle brackets and bolts.

[0013] As a preferred embodiment: the vertical profile and the horizontal profile have the same structure, and each of the vertical profile and the horizontal profile is provided with several adjustment and fixing grooves, and the two syringe clamp assemblies are respectively fixedly connected in the adjustment and fixing grooves.

[0014] As a preferred embodiment: the syringe clamp assembly includes an adjusting fixing block, a support rod, and a syringe elastic clamp; the adjusting fixing block is fixedly connected in the adjusting fixing groove, the front end of the adjusting fixing block is fixedly connected to the support rod, the front end of the support rod is fixedly connected to the syringe elastic clamp, and the syringe elastic clamp is snap-fitted to the front side of the syringe.

[0015] As a preferred embodiment: the head of the syringe is fixedly connected to a connecting screw sleeve, and both ends of the fat emulsification conversion head are fixedly connected to connecting threaded heads, which are connected to the connecting screw sleeve by threads.

[0016] As a preferred embodiment, the fat emulsification converter is a straight-through fat emulsification converter or a four-hole fat emulsification converter.

[0017] Compared with existing technologies, the beneficial effects of this utility model are as follows: Through the coordinated operation of the lead screw drive linear module, syringe fixing assembly, limiting assembly, frame, and syringe clamp assembly, precise control of injection force, injection speed, injection frequency, and injection stroke is achieved, ensuring consistent fat content with each injection, adapting to different emulsification requirements, reducing cell damage, and improving processing efficiency and standardization. Specific advantages include: I. The screw-driven linear module of this utility model can drive the syringe to perform reciprocating linear motion, which can accurately control the injection speed, injection frequency and injection stroke, ensuring that the amount of fat injected each time is consistent. At the same time, the direction of motion is consistent with the axis of the syringe, ensuring that the injection force is transmitted axially, so that the fat droplets are fully released and the consistency of the product is guaranteed.

[0018] Second, the syringe fixing component of this utility model achieves the clamping of the syringe tail, making it less prone to loosening and displacement when the lead screw drive linear module drives the syringe to perform reciprocating linear motion. At the same time, it works in conjunction with the syringe tube clamp component to fix the syringe in a secondary way. The elastic force of the syringe tube clamp component keeps the axes of the two syringes aligned, avoiding additional resistance or leakage caused by deviation during injection.

[0019] Third, the limiting component of this utility model realizes the limiting, initial position calibration and detection of the injection force of the linear module of the screw drive, which can accurately control the injection force and ensure the safety during injection.

[0020] Fourth, the fat emulsification converter of this utility model is detachable, which facilitates the quick installation, disassembly, cleaning and sterilization of the fat emulsification converter. Attached Figure Description

[0021] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure from another perspective of the utility model; Figure 3 This is a schematic diagram of the linear screw drive module in this utility model; Figure 4 This is a schematic diagram of the linear screw drive module of this utility model from another perspective. Figure 5 This is a schematic diagram of the syringe fixing assembly in this utility model; Figure 6 This is a top view of the vertical profile in this utility model; Figure 7 This is a schematic diagram of the syringe clamp assembly in this utility model; Figure 8 This is a schematic diagram of the syringe and fat emulsification conversion head in this utility model; Figure 9 This is a schematic diagram of the straight-through fat emulsification converter head in this utility model; Figure 10 This is a schematic diagram of the structure of the four-hole fat emulsification converter head in this utility model.

[0023] In the diagram: 1-Screw drive linear module; 2-Injector fixing assembly; 3-Limiting assembly; 4-Frame; 5-Injector tube clamp assembly; 6-Injector; 7-Fat emulsification conversion head; 1-1-Stepper motor; 1-2-Outer fixing plate; 1-3-Inner fixing plate; 1-4-Lead screw; 1-5-Push-in moving platform; 1-6-Lead nut sleeve; 1-7-Guide sleeve; 1-8-Guide rod; 1-9-Connecting rod; 1-31-Instrument insertion slot; 2-1-Tail clip; 2-2-Spring; 2-3-Clip fixing bolt; 3-1 Limit switch; 3-2 Pressure sensor; 4-1-Vertical profiles; 4-2-Horizontal profiles; 4-11-Adjusting fixing groove; 5-1-Adjusting fixing block; 5-2-Support rod; 5-3-Syringe elastic tube clamp; 6-1-Connecting threaded sleeve; 7-1-Connecting threaded head; 7-2-Through hole; 7-3-Small hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. The structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0025] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0026] Specific implementation method one: Combining Figures 1 to 10 The illustration shows this specific embodiment, which uses a lead screw drive linear module 1 to drive the syringe 6 to perform linear reciprocating motion, precisely controlling the injection force, injection speed, injection frequency, and injection stroke. The specific technical solution includes a lead screw drive linear module 1 and a frame 4. Two lead screw drive linear modules 1 are fixedly connected to the upper and lower sides of the frame 4, respectively. The frame 4 can fix the two lead screw drive linear modules 1 by bolts. The two syringes 6 are fixedly connected through a fat emulsification conversion head 7 to form a closed channel. The syringe barrels of the two syringes 6 are inserted into the groove of the lead screw drive linear module 1. At this time, the lead screw drive linear module 1 drives the push rod of the syringe 6 to perform reciprocating linear motion.

[0027] Combination Figures 1 to 10The following describes this specific embodiment. This embodiment uses a syringe fixing assembly 2 and a syringe clamp assembly 5 to fix the syringe 6, ensuring that the syringe 6 does not shift during injection and avoiding additional resistance or leakage due to displacement. Specifically, the technical solution is as follows: It includes a syringe fixing assembly 2 and a syringe clamp assembly 5. The syringe clamp assembly 5 is fixedly connected to the vertical surface of the inner wall of the frame 4, and is perpendicular to the frame 4. The syringe barrel tails of the two syringes 6 are inserted into the groove of the lead screw drive linear module 1 and fixed by the syringe fixing assembly 2. The syringe fixing assembly 2 facilitates the clamping of the syringe barrel tails of the two syringes 6, preventing displacement during injection. The front sides of the syringe barrels of the two syringes 6 are snap-fitted to the syringe clamp assembly 5. The elastic force of the syringe clamp assembly 5 keeps the axes of the two syringes 6 aligned, avoiding additional resistance or leakage due to displacement during injection.

[0028] Combination Figures 1 to 10 The illustration shows this specific embodiment. The limiting component 3 of this specific embodiment realizes the limiting, initial position calibration, and injection force detection of the screw-driven linear module 1. The specific technical solution adopted is as follows: it includes a limiting component 3; two syringe fixing components 2 are respectively fixedly installed on the screw-driven linear module 1, the limiting component 3 is fixedly connected to the frame 4 and the screw-driven linear module 1 respectively, and the limiting component 3 cooperates with the screw-driven linear module 1. The limiting component 3 is used for the initial position calibration and injection force detection of the screw-driven linear module 1.

[0029] The operation process of this specific implementation method is as follows: I. Initial Position Calibration Process: After the equipment is started, the system automatically triggers the initial position calibration. The lead screw drive linear module 1 moves to the end until the limit component 3 sends an electrical signal to the controller and stops operating. At this time, the position of the injection moving platform is recorded as the "starting zero point" to ensure that the initial position is consistent for each operation, laying the foundation for accurate control of the subsequent injection stroke.

[0030] II. Sample Loading and Fixation Operation: The operator loads the shredded adipose tissue into a 20ml syringe 6. Another empty syringe 6 is connected to the sample-loaded syringe 6 via a fat emulsification conversion head 7, forming a closed channel. The tails of the sample-loaded syringe 6 and the empty syringe 6 are respectively placed into the grooves of two lead screw drive linear modules 1 and fixed by the syringe fixing assembly 2, pressing the tails of the two syringes 6 tightly. The front side of the syringe barrel is clamped by the syringe tube clamp assembly 5. The elastic force of the syringe tube clamp assembly 5 keeps the axes of the two syringes 6 aligned, avoiding additional resistance or leakage due to deviation during injection.

[0031] III. Sample loading and positioning process: The controller issues a command, and the lead screw drive linear module 1 runs, gradually approaching the end of the push rod of the syringe 6 for sample loading. When the limit component 3 contacts the end of the push rod and detects pressure, it sends a signal to the controller, and the lead screw drive linear module 1 immediately stops running. At this time, the position is recorded as the "push start position" to ensure that there is no empty stroke during the push and that the initial contact force is stable.

[0032] IV. Fat Emulsification and Injection Process: The screw-driven linear module 1 rotates forward at the set speed, pressing the fat tissue from the sample-filled syringe 6 into the empty syringe 6. During this process, the rotation speed is converted into the injection speed, and the moving distance is controlled by the number of motor pulses to ensure that the amount of fat injected each time is consistent. After the maximum stroke is reached, the upper screw-driven linear module 1 immediately reverses, and the lower screw-driven linear module 1 pushes the push rod of the syringe 6 at a uniform speed, pushing the fat tissue in the originally empty syringe 6 back into the original material-side syringe 6, completing one "push-pull" cycle.

[0033] 5. After repeating step four above several times, the adipose tissue is broken into a uniformly sized emulsion suspension under the dual action of shear force (generated by the structure of the fat emulsification conversion head 7) and pressure (injection force).

[0034] VI. End of Reset Process: After the preset number of injections is completed, the lead screw drive linear module 1 resets to its end position, triggers the limit component 3 again, and the lead screw drive linear module 1 stops and returns to its initial position. The operator releases the syringe fixing component 2 and the syringe tube clamp component 5, and removes the connected syringe 6 to obtain the emulsified fat suspension for subsequent centrifugation purification steps.

[0035] Specific Implementation Method Two: Combining Figures 1 to 4The illustration shows this specific embodiment, which is a further limitation of Specific Embodiment One. This specific embodiment uses a lead screw drive linear module 1 to achieve forward rotation to push the plunger of the syringe 6 and reverse rotation to reset. Specifically, the following technical solution is adopted: The lead screw drive linear module 1 includes a stepper motor 1-1, an outer fixing plate 1-2, an inner fixing plate 1-3, a lead screw 1-4, a push-in moving platform 1-5, a lead screw sleeve 1-6, a guide sleeve 1-7, a guide rod 1-8, and a connecting rod 1-9; the outer fixing plate 1-2 and the inner fixing plate 1-3 are fixedly connected by the connecting rod 1-9, and the stepper motor 1... -1 is fixedly connected to the outer wall of the outer fixed plate 1-2 by bolts. The rotating shaft of the stepper motor 1-1 is fixedly connected to one end of the lead screw 1-4 through a coupling. The stepper motor 1-1 can drive the lead screw 1-4 to rotate forward and backward. The other end of the lead screw 1-4 is fixedly connected to the bearing in the bearing housing. The bearing housing is fixedly connected to the outer wall of the inner fixed plate 1-3 by bolts. The external thread of the lead screw 1-4 is connected to the internal thread of the lead nut sleeve 1-6. The lead nut sleeve 1-6 is fixedly connected to the slot in the middle of the injection moving platform 1-5 by bolts. When the lead screw 1-4 rotates forward, it drives the injection moving platform 1-5 forward. Pushing the plunger of syringe 6 causes the lead screw 1-4 to reverse, resetting the injection platform 1-5 and returning it to its initial position. Two guide sleeves 1-7 are bolted to the slots on either side of the injection platform 1-5. The guide sleeves 1-7 are movably connected to guide rods 1-8, guiding the injection platform 1-5 as it slides along the guide rods 1-8. The two ends of the guide rods 1-8 are fixedly connected to the inner walls of the outer fixing plate 1-2 and the inner fixing plate 1-3, respectively. When the injection platform 1-5 moves forward or backward to reset, the guide sleeves 1-7 guide the injection platform 1-5. The guide rod 1-8 guides and improves the stability of the linear reciprocating motion of the injection moving platform 1-5; the outer edge of the inner fixing plate 1-3 is provided with a concave syringe insertion groove 1-31, and two syringe fixing components 2 are fixedly connected to the inner side wall of the inner fixing plate 1-3. The two syringe fixing components 2 are respectively located on both sides of the syringe insertion groove 1-31. The syringe barrel tail of the syringe 6 is inserted into the syringe insertion groove 1-31 and fixed by the syringe fixing component 2. The syringe insertion groove 1-31 facilitates the positioning of the syringe barrel tail and makes it easy to accurately fix the syringe barrel tail.

[0036] In this specific embodiment, the working principle of the lead screw drive linear module 1 is as follows: The tail of the syringe 6 is inserted into the syringe insertion slot 1-31, and the tail of the syringe 6 is fixed by the syringe fixing component 2. During initial calibration, the stepper motor 1-1 drives the lead screw 1-4 to reverse, driving the injection moving platform 1-5 to move to the end until the edge of the injection moving platform 1-5 touches the limit switch 3-1 of the limit component 3. The limit switch 3-1 sends an electrical signal to the controller, and the stepper motor 1-1 stops running. At this time, the position of the injection moving platform 1-5 is recorded as the "starting zero point" to ensure that the initial position is consistent for each operation. During the sample loading and positioning process, the controller issues a command, the stepper motor 1-1 rotates forward, and the upper injection moving platform 1-5 moves towards the push rod end of the syringe 6. As the syringe 6 approaches the tip of the syringe plunger, the pressure sensor 3-2 of the limiting component 3 contacts the tip of the plunger and detects pressure. The pressure sensor 3-2 sends a signal to the controller, and the stepper motor 1-1 immediately stops running. At this time, the position of the injection moving platform 1-5 is recorded as the "injection start position," ensuring that there is no empty stroke during injection and that the initial contact force is stable. When the injection moving platform 1-5 moves, the guide sleeve 1-7 guides on the guide rod 1-8, which can improve the stability of the injection moving platform 1-5 during reciprocating motion. The stable torque output of the stepper motor 1-1 can accurately control the injection force. The rotation speed of the stepper motor 1-1 controls the injection speed, the number of forward and reverse cycles of the stepper motor 1-1 controls the number of injections, and the number of pulses of the stepper motor 1-1 controls the injection stroke.

[0037] Specific implementation method three: Combining Figures 1 to 5 The following describes a specific embodiment, which is a further limitation of embodiment one or two. This embodiment uses a syringe fixing assembly 2 to clamp the tail of the syringe 6. The specific technical solution is as follows: The syringe fixing assembly 2 includes a tail clip 2-1, a spring 2-2, and a clip fixing bolt 2-3. The tail of the tail clip 2-1 contacts the upper end face of the spring 2-2. The tail clip 2-1 is automatically tightened by the spring 2-2. The clip fixing bolt 2-3 passes through the fixing hole of the tail clip 2-1 and the inside of the spring 2-2 to fix the tail clip 2-1 to the inner fixing plate 1-3. The head of the tail clip 2-1 is raised to facilitate the quick insertion of the tail of the syringe 6.

[0038] In this specific embodiment, when the syringe fixing assembly 2 is fixing the tail of the syringe 6, when the syringe 6 is placed into the syringe insertion slot 1-31, the two tail clamps 2-1 press against the tail of the syringe 6. The raised end of the tail clamp 2-1 facilitates the quick insertion of the syringe 6. At this time, the spring 2-2 automatically tightens and presses the tail of the syringe 6, thus completing the fixing of the syringe 6.

[0039] Specific implementation method four: Combination Figures 1 to 4 This embodiment illustrates a further limitation of embodiments one, two, or three. This embodiment uses a limiting component 3 to achieve limiting, initial position calibration, and injection force detection of the injection moving platform 1-5. Specifically, the limiting component 3 includes a limiting switch 3-1 and a pressure sensor 3-2. The limiting switch 3-1 is fixedly connected to the side wall of the frame 4 by bolts, and the limiting contact of the limiting switch 3-1 cooperates with the injection moving platform 1-5 of the linear screw drive module 1. When the injection moving platform 1-5 touches the limiting switch 3-1, it stops moving, and its position is recorded as the "starting zero point," achieving initial position calibration. The pressure sensor 3-2 is fixedly connected to the inner side wall of the injection moving platform 1-5. When the injection moving platform 1-5 moves forward, the pressure sensor 3-2 contacts the end of the syringe 6's push rod, at which point the pressure sensor 3-2 can detect the injection force of the injection moving platform 1-5.

[0040] Specific Implementation Method Five: Combining Figure 1 , Figure 2 , Figure 6 This embodiment illustrates a further limitation of embodiments one, two, three, or four. This embodiment uses a frame 4 to fix the lead screw drive linear module 1 and the two syringe clamp assemblies 5. Specifically, the frame 4 includes a vertical profile 4-1 and a horizontal profile 4-2. The vertical profile 4-1 is fixedly connected to the outer fixing plate 1-2 and inner fixing plate 1-3 of the lead screw drive linear module 1 via angle brackets and bolts. The horizontal profile 4-2 is fixedly connected to the lower outer fixing plate 1-2 of the lead screw drive linear module 1 via angle brackets and bolts. The horizontal profile 4-2 facilitates overall support of the equipment. The vertical profile 4-1 and the horizontal profile 4-2 have the same structure. Both the vertical profile 4-1 and the horizontal profile 4-2 are provided with several adjustment and fixing grooves 4-11. The two syringe clamp assemblies 5 are fixedly connected within the adjustment and fixing grooves 4-11, allowing the two syringe clamp assemblies 5 to be adjusted and fixed in their respective positions within the adjustment and fixing grooves 4-11.

[0041] Specific Implementation Method Six: Combination Figure 7This embodiment illustrates a further limitation of embodiments one, two, three, four, or five. This embodiment uses a syringe clamp assembly 5 to achieve a snap-fit ​​connection between the front of the syringe barrel of the syringe 6, improving the stability of the syringe 6. Specifically, the following technical solution is adopted: The syringe clamp assembly 5 includes an adjusting and fixing block 5-1, a support rod 5-2, and a syringe barrel elastic clamp 5-3. The adjusting and fixing block 5-1 is fixedly connected within an adjusting and fixing groove 4-11, allowing for adjustment and fixing within the groove. The front end of the adjusting and fixing block 5-1 is fixedly connected to the support rod 5-2, and the front end of the support rod 5-2 is fixedly connected to the syringe barrel elastic clamp 5-3. The syringe barrel elastic clamp 5-3 is snap-fitted to the front of the syringe barrel of the syringe 6, enabling the snap-fit ​​connection of the syringe barrel of the syringe 6, thus fixing the syringe barrel. Simultaneously, the elastic force of the syringe barrel elastic clamp 5-3 keeps the axes of the two syringes 6 aligned, preventing additional resistance or leakage due to offset during injection.

[0042] Specific implementation method seven: Combining Figure 1 , Figure 2 , Figures 8 to 10 The illustration shows this specific embodiment, which is a further limitation of embodiment one, two, three, four, five, or six. The fat emulsification converter head 7 in this specific embodiment is detachable, facilitating quick installation, disassembly, cleaning, and sterilization. Specifically, the following technical solution is adopted: the head of the syringe 6 is fixedly connected to a connecting screw sleeve 6-1, and both ends of the fat emulsification converter head 7 are fixedly connected to connecting threaded heads 7-1. The connecting threaded heads 7-1 and the connecting screw sleeve 6-1 are connected by threads, which facilitates quick installation and disassembly. The fat emulsification converter head 7 is a straight-through fat emulsification converter head, a four-hole fat emulsification converter head, or other forms.

[0043] In this specific embodiment, the direct-flow fat emulsification converter head is as follows: Figure 9 As shown, the interior of the fat emulsification converter 7 is a through hole 7-2. In this specific embodiment, the four-hole fat emulsification converter is as follows: Figure 10 As shown, the fat emulsification conversion head 7 has four small holes 7-3 inside, and the diameter of the small holes 7-3 is 1mm.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automated adipose-derived regenerative cell extraction pre-treatment device, characterized by: The assembly includes a lead screw drive linear module (1), a syringe fixing assembly (2), a limiting assembly (3), a frame (4), and a syringe clamp assembly (5). Two lead screw drive linear modules (1) are fixedly connected to the upper and lower sides of the frame (4), respectively. The syringe clamp assembly (5) is fixedly connected to the vertical surface of the inner wall of the frame (4). Two syringe fixing assemblies (2) are fixedly installed on the lead screw drive linear module (1), respectively. The limiting assembly (3) is fixedly connected to the frame (4) and the lead screw drive linear module (1), respectively. The limiting assembly (3) cooperates with the lead screw drive linear module (1). Two syringes (6) are fixedly connected through a fat emulsification conversion head (7) to form a closed channel. The tail of the syringe barrel of the two syringes (6) is placed into the groove of the lead screw drive linear module (1) and fixed by the syringe fixing assembly (2). The front side of the syringe barrel of the two syringes (6) is snap-fitted to the syringe clamp assembly (5).

2. The automated adipose-derived regenerative cell extraction pre-treatment device of claim 1, wherein: The linear drive module (1) includes a stepper motor (1-1), an outer fixing plate (1-2), an inner fixing plate (1-3), a lead screw (1-4), a push-in moving platform (1-5), a lead screw sleeve (1-6), a guide sleeve (1-7), a guide rod (1-8), and a connecting rod (1-9). The outer fixing plate (1-2) and the inner fixing plate (1-3) are fixedly connected by the connecting rod (1-9). The stepper motor (1-1) is fixedly connected to the outer side wall of the outer fixing plate (1-2) by bolts. The rotating shaft of the stepper motor (1-1) is fixedly connected to one end of the lead screw (1-4) through a coupling. 4) The other end is fixedly connected to the bearing in the bearing housing. The bearing housing is fixedly connected to the outer wall of the inner fixed plate (1-3). The external thread of the screw (1-4) is connected to the internal thread of the screw nut (1-6). The screw nut (1-6) is fixedly connected to the slot in the middle of the injection moving platform (1-5) by bolts. The two guide sleeves (1-7) are fixedly connected to the slots on both sides of the injection moving platform (1-5) by bolts. The guide sleeve (1-7) is movably connected to the guide rod (1-8). The two ends of the two guide rods (1-8) are fixedly connected to the inner wall of the outer fixed plate (1-2) and the inner fixed plate (1-3) respectively.

3. The automated adipose-derived regenerative cell extraction pre-treatment device of claim 2, wherein: The inner fixing plate (1-3) has a recessed syringe insertion groove (1-31) on its outer edge. Two syringe fixing components (2) are fixedly connected to the inner side wall of the inner fixing plate (1-3). The two syringe fixing components (2) are respectively located on both sides of the syringe insertion groove (1-31). The syringe barrel tail of the syringe (6) is inserted into the syringe insertion groove (1-31), and the syringe barrel tail of the syringe (6) is fixed by the syringe fixing components (2).

4. The automated adipose-derived regenerative cell extraction pre-treatment device of claim 3, wherein: The syringe fixing assembly (2) includes a tail clip (2-1), a spring (2-2), and a clip fixing bolt (2-3); the tail of the tail clip (2-1) contacts the upper end face of the spring (2-2), and the clip fixing bolt (2-3) passes through the fixing hole of the tail clip (2-1) and the inside of the spring (2-2) to fix the tail clip (2-1) to the inner fixing plate (1-3).

5. The automated pretreatment device for extracting adipose-derived regenerative cells according to claim 1, characterized in that: The limiting component (3) includes a limit switch (3-1) and a pressure sensor (3-2). The limit switch (3-1) is fixedly connected to the side wall of the frame (4) by bolts, and the limit contact of the limit switch (3-1) cooperates with the injection moving platform (1-5) of the screw drive linear module (1). The pressure sensor (3-2) is fixedly connected to the inner side wall of the injection moving platform (1-5), and the pressure sensor (3-2) cooperates with the end of the push rod of the syringe (6).

6. The automated adipose-derived regenerative cell extraction pre-treatment device of claim 5, wherein: The frame (4) includes a vertical profile (4-1) and a horizontal profile (4-2). The vertical profile (4-1) is fixedly connected to the outer fixing plate (1-2) and inner fixing plate (1-3) of the screw drive linear module (1) by means of angle brackets and bolts, respectively. The horizontal profile (4-2) is fixedly connected to the outer fixing plate (1-2) of the lower screw drive linear module (1) by means of angle brackets and bolts.

7. The automated adipose-derived regenerative cell extraction pre-treatment device of claim 6, wherein: The vertical profile (4-1) and the horizontal profile (4-2) have the same structure. Both the vertical profile (4-1) and the horizontal profile (4-2) are provided with several adjustment and fixing grooves (4-11). The two syringe clamp assemblies (5) are respectively fixedly connected in the adjustment and fixing grooves (4-11).

8. The automated adipose-derived regenerative cell extraction pre-treatment device of claim 7, wherein: The syringe clamp assembly (5) includes an adjusting fixing block (5-1), a support rod (5-2), and a syringe elastic clamp (5-3). The adjusting fixing block (5-1) is fixedly connected in the adjusting fixing groove (4-11). The front end of the adjusting fixing block (5-1) is fixedly connected to the support rod (5-2). The front end of the support rod (5-2) is fixedly connected to the syringe elastic clamp (5-3). The syringe elastic clamp (5-3) is snap-fit ​​connected to the front side of the syringe (6).

9. The automated pretreatment device for extracting adipose-derived regenerative cells according to claim 8, characterized in that: The head of the syringe (6) is fixedly connected to a connecting sleeve (6-1), and both ends of the fat emulsification conversion head (7) are fixedly connected to connecting threaded heads (7-1). The connecting threaded heads (7-1) and the connecting sleeve (6-1) are connected by threads.

10. The automated adipose-derived regenerative cell extraction pre-treatment device of claim 9, wherein: The fat emulsification converter (7) is a straight-through fat emulsification converter or a four-hole fat emulsification converter.

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