Liposuction needle system

Abstract

The application provides a liposuction needle system, which comprises a handle fixing assembly and a liposuction needle fixing assembly, the handle fixing assembly is provided with a first connecting piece, a safety locking mechanism and a safety releasing mechanism, the liposuction needle fixing assembly is provided with a second connecting piece, the first connecting piece is detachably connected with the second connecting piece, the safety locking mechanism is connected with the first connecting piece and the second connecting piece respectively and is used for locking and fixing the first connecting piece and the second connecting piece, and the safety releasing mechanism is connected with the safety locking mechanism and is used for driving the safety locking mechanism to lock and release the first connecting piece and the second connecting piece. In the above technical scheme, the dismounting efficiency, compatibility and safety of the liposuction needle are improved.

Description

Technical Field

[0001] This application relates to the field of medical aesthetic device technology, and in particular to a liposuction needle system. Background Technology

[0002] The handle and cannula of traditional liposuction devices are usually fixed by threaded connection or snap-fit ​​structure, which has the following drawbacks; Low assembly and disassembly efficiency: Threaded connections require multiple rotations, making the operation cumbersome and increasing surgical time; the snap-fit ​​structure is prone to wear, leading to loose connections; Poor compatibility: Different models of liposuction cannulas require specific handles, resulting in insufficient versatility; Safety concerns: Accidental contact may cause the needle to dislodge unexpectedly, posing a surgical risk. Summary of the Invention

[0003] This application provides a liposuction needle system to improve the efficiency, compatibility, and safety of liposuction needle installation and removal.

[0004] This application provides a liposuction cannula system, including: a quick-release bayonet structure for the liposuction cannula, a high-frequency automatic suction system for the liposuction cannula, and a liposuction cannula system, wherein... The quick-release structure for the liposuction cannula includes a handle fixing assembly and a liposuction cannula fixing assembly, wherein... The liposuction needle is fixedly connected to the handle fixing assembly using a high-frequency automatic suction system; the liposuction needle cannula system is fixedly connected to the liposuction needle fixing assembly. The handle fixing assembly is provided with a first connector, a safety locking mechanism and a safety release mechanism; The liposuction needle fixation assembly is provided with a second connector; The first connector and the second connector are detachably connected; The safety locking mechanism is connected to the first connector and the second connector respectively, and is used to lock and fix the first connector and the second connector. The safety release mechanism is connected to the safety locking mechanism and is used to drive the safety locking mechanism to lock and release the first connector and the second connector.

[0005] In the above technical solution, by setting a handle fixing assembly and a liposuction needle fixing assembly, the handle fixing assembly is provided with a first connector, a safety locking mechanism, and a safety release mechanism; the liposuction needle fixing assembly is provided with a second connector; the first connector and the second connector are detachably connected; the safety locking mechanism is connected to the first connector and the second connector respectively, and is used to lock and fix the first connector and the second connector; the safety release mechanism is connected to the safety locking mechanism, and is used to drive the safety locking mechanism to lock and release the first connector and the second connector; thus improving the efficiency, compatibility, and safety of liposuction needle assembly and disassembly.

[0006] In one specific implementation scheme, the first connecting member is a groove, and the second connecting member is a convex rail, wherein... The groove and the convex rail are slidably and detachably connected.

[0007] In one specific implementation scheme, the first connecting member is a convex rail, and the second connecting member is a groove, wherein... The groove and the convex rail are slidably and detachably connected.

[0008] In one specific implementation scheme, the safety locking mechanism includes a locking latch, wherein... The locking head is slidably connected to the handle fixing assembly; The locking clip is engaged and fixed with the liposuction needle fixing assembly.

[0009] In one specific implementation scheme, the liposuction needle fixing assembly is provided with a locking groove, wherein... The locking head is engaged and fixed with the locking slot.

[0010] In one possible implementation, the locking slot is disposed on the convex rail.

[0011] In one possible implementation, the safety release mechanism includes a release button, wherein, The release button is slidably connected to the handle fixing assembly; The release button is fixedly connected to the locking head.

[0012] In one specific implementation, the release button and the locking head are integrally formed.

[0013] In one specific implementation, a return spring is provided between the release button and the handle fixing assembly, wherein... The return spring is used to drive the release button to restore its position.

[0014] In one specific implementation, the liposuction cannula system includes: Cannula assembly, used to create a liposuction space at the liposuction site; The liposuction needle assembly is slidably inserted into the cannula assembly and used to perform liposuction operations within the liposuction space; The cannula assembly is fixedly connected to the liposuction needle fixing assembly; the liposuction needle assembly is connected to the liposuction needle using a high-frequency automatic suction system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the liposuction needle system provided in an embodiment of this application.

[0016] Figure 2 This is a schematic diagram showing the position of the locking head and handle fixing assembly provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the release button and handle fixing assembly provided in the embodiments of this application.

[0017] Among them, 1-handle fixing assembly, 2-liposuction needle fixing assembly, 3-V-shaped groove, 4-V-shaped convex rail, 5-locking head, 6-locking slot, 7-release button, 8-return spring, 9-high frequency automatic suction system for liposuction needle, 10-connecting block, 11-liposuction needle, 12-micropore array, 13-cannula, 14-through groove, 16-linear bearing, 15-screw. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0019] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0020] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0021] To facilitate understanding of the liposuction needle system provided in this application embodiment, its application scenario is first described. The liposuction needle system provided in this application embodiment is used to improve the efficiency, compatibility, and safety of liposuction needle assembly and disassembly. Traditional liposuction devices typically use threaded connections or snap-fit ​​structures to fix the handle and needle, which has the following drawbacks: low assembly and disassembly efficiency: threaded connections require multiple rotations, making operation cumbersome and increasing surgery time; snap-fit ​​structures are prone to wear, leading to loose connections; poor compatibility: different models of liposuction needles require specific handles, resulting in insufficient versatility; insufficient safety: accidental contact may cause the needle to accidentally fall off, posing a surgical risk. Therefore, this application embodiment provides a liposuction needle system to improve the efficiency, compatibility, and safety of liposuction needle assembly and disassembly. The following detailed description, in conjunction with specific accompanying drawings, illustrates the system.

[0022] refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the liposuction needle system provided in the embodiments of this application; Figure 2 This is a schematic diagram showing the position of the locking head and handle fixing assembly provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the release button and handle fixing assembly provided in the embodiments of this application.

[0023] exist Figures 1 to 3 This application provides a liposuction needle system, including: a quick-release bayonet structure for liposuction needles, a high-frequency automatic suction system 9 for liposuction needles, and a liposuction needle cannula system, wherein... The quick-release structure for the liposuction needle includes a handle fixing assembly 1 and a liposuction needle fixing assembly 2, wherein... The liposuction needle is fixedly connected to the handle fixing assembly using a high-frequency automatic suction system; the liposuction needle cannula system is fixedly connected to the liposuction needle fixing assembly. The handle fixing assembly is provided with a first connector, a safety locking mechanism and a safety release mechanism; The liposuction needle fixation assembly is provided with a second connector; The first connector and the second connector are detachably connected; The safety locking mechanism is connected to the first connector and the second connector respectively, and is used to lock and fix the first connector and the second connector. The safety release mechanism is connected to the safety locking mechanism and is used to drive the safety locking mechanism to lock and release the first connector and the second connector.

[0024] In the above technical solution, by setting a handle fixing assembly and a liposuction needle fixing assembly, the handle fixing assembly is provided with a first connector, a safety locking mechanism, and a safety release mechanism; the liposuction needle fixing assembly is provided with a second connector; the first connector and the second connector are detachably connected; the safety locking mechanism is connected to the first connector and the second connector respectively, and is used to lock and fix the first connector and the second connector; the safety release mechanism is connected to the safety locking mechanism, and is used to drive the safety locking mechanism to lock and release the first connector and the second connector; thus improving the efficiency, compatibility, and safety of liposuction needle assembly and disassembly.

[0025] Specifically, the beneficial effects of the liposuction needle system include: Improve disassembly and assembly efficiency and optimize user experience. The traditional process of installing and removing liposuction cannulas often requires complex tools and multiple tedious steps, which is not only time-consuming but also demands a high level of professional skill from the operator. This quick-release mechanism, however, achieves rapid installation and removal of liposuction cannulas through its ingenious design.

[0026] The first connector on the handle fixing assembly and the second connector on the liposuction cannula fixing assembly are detachably connected. Combined with a safety locking mechanism and a safety release mechanism, the operator can easily release the safety locking mechanism by simply operating the safety release mechanism, allowing for easy separation of the two components. Installation is equally convenient; simply align the two components, and the safety locking mechanism will automatically or automatically engage, significantly reducing installation and disassembly time. During surgery, time is of the essence. Quickly attaching and disassembling the liposuction cannula reduces patient waiting time on the operating table, lowers surgical risks, reduces the workload of medical staff, and improves overall surgical efficiency.

[0027] Enhanced compatibility to meet diverse needs Different brands and models of liposuction needles vary in size, specifications, and interface design, which imposes many limitations on medical institutions in equipment procurement and use. This quick-release bayonet structure has good compatibility, and its handle fixing component and liposuction needle fixing component are designed with the characteristics of various liposuction needles in mind.

[0028] The detachable connection between the first and second connectors offers a degree of versatility, allowing them to accommodate various liposuction cannulas of different sizes. Medical institutions no longer need to equip each cannulas with a dedicated handle; a single handle fixing assembly with this quick-release structure can be used with multiple cannulas fixing assemblies, significantly reducing equipment procurement costs. Furthermore, this compatibility facilitates the exchange and innovation of medical technologies, enabling different regions and hospitals to more easily share and learn from advanced liposuction techniques and equipment, thus promoting the development of the liposuction field.

[0029] Ensure safety and reduce operational risks In liposuction surgery, a stable connection of the liposuction cannula is crucial. If the connection is not secure, the cannula may detach during the procedure, causing serious harm to the patient. The safety locking mechanism of this quick-release design effectively solves this problem.

[0030] The safety locking mechanism is tightly connected to both the first and second connecting parts, reliably locking and securing them to ensure that the liposuction cannula will not loosen or fall off due to external force during the procedure, providing a stable and safe guarantee for the surgery. Simultaneously, the safety release mechanism is also well-designed; it connects to the safety locking mechanism and only unlocks when actively activated by the operator, preventing accidental separation of the liposuction cannula due to misoperation. This dual safety mechanism significantly reduces surgical risks, improves patient safety, and allows patients to undergo liposuction surgery with greater peace of mind.

[0031] In one specific implementation scheme, the first connecting member is a V-shaped groove 3, and the second connecting member is a V-shaped convex rail 4, wherein... The V-shaped groove and the V-shaped convex rail are slidably and detachably connected.

[0032] In one specific feasible implementation, the first connecting member is a V-shaped convex rail, and the second connecting member is a V-shaped groove, wherein... The V-shaped groove and the V-shaped convex rail are slidably and detachably connected.

[0033] Specifically, the groove has a T-shaped cross-section, and the corresponding convex rail has a T-shaped cross-section; or the groove and the convex rail are dovetail-shaped structures that fit together.

[0034] Specifically, the beneficial effects include: Secure connection ensures surgical safety: The special shape design of the V-shaped groove and V-shaped convex rail allows for a tight fit when connected. During liposuction, the liposuction cannula is subjected to forces from various directions. This V-shaped structure acts like a tenon and mortise joint, effectively resisting external forces and preventing accidental separation of the cannula fixing component and the handle fixing component. This avoids displacement or detachment of the liposuction cannula due to loose connection, greatly reducing surgical risks and ensuring patient safety.

[0035] Precise positioning enhances operational accuracy: The V-shaped structure provides clear guidance. When the liposuction cannula fixing component is installed onto the handle fixing component, the V-shaped convex rail slides accurately into place along the V-shaped groove, achieving quick and precise positioning. Medical staff do not need to spend a lot of time on repeated adjustments and calibrations, allowing for faster installation of the liposuction cannula in the appropriate position. This ensures the accuracy of the liposuction operation, improves surgical outcomes, and reduces surgical errors caused by inaccurate positioning.

[0036] Easy assembly and disassembly, improving surgical efficiency: The V-shaped groove and V-shaped convex rail adopt a sliding and detachable connection method, making operation simple and intuitive. When it is necessary to remove the liposuction cannula, medical staff only need to apply appropriate external force to make the V-shaped convex rail slide out along the V-shaped groove to complete the separation, without complicated tools or cumbersome steps. This convenient assembly and disassembly method can significantly shorten the preparation and completion time of surgery, improving the overall efficiency of the surgery.

[0037] In one specific implementation scheme, the safety locking mechanism includes a locking head 5, wherein... The locking head is slidably connected to the handle fixing assembly; The locking clip is engaged and fixed with the liposuction needle fixing assembly.

[0038] Specifically, the beneficial effects include: Secure locking for enhanced surgical safety: The locking clip engages firmly with the liposuction cannula fixation component, providing a strong and stable connection. During liposuction, the cannula is subjected to forces from various directions, including forces generated by patient movement and reaction forces from the liposuction procedure. The locking clip effectively resists these forces, preventing accidental separation between the cannula fixation component and the handle fixation component. This avoids the cannula loosening or falling off during surgery, significantly reducing surgical risks and providing reliable protection for patient safety.

[0039] The sliding design allows for flexible and convenient operation: the locking head slides smoothly against the handle fixing component, making it easier for medical staff to install and remove liposuction cannulas. During installation, simply bring the liposuction cannula fixing component close to the handle fixing component and push the locking head to the engaging position to lock it in place. For removal, simply slide the locking head in the opposite direction to release the engagement, easily separating the two components. This sliding design reduces the complexity and difficulty of the operation, saves time during surgical preparation and follow-up, and improves surgical efficiency.

[0040] Simple structure, reduced failure probability: The overall structure of this safety locking mechanism is relatively simple, consisting only of a locking head and its sliding connection structure, reducing the number of parts and complexity. A simple structure means a lower failure rate; during daily use and maintenance, the possibility of problems is smaller, reducing equipment maintenance costs and usage risks, and ensuring the stable and reliable operation of the liposuction cannula system during surgery.

[0041] In one specific implementation scheme, the liposuction needle fixing assembly is provided with a locking groove 6, wherein... The locking head is engaged and fixed with the locking slot.

[0042] Specifically, the convex rails are symmetrically arranged at both ends of the liposuction needle fixing assembly. The side of the convex rail with the locking head 5 facing away from the handle fixing assembly 1 forms the locking groove 6. One end of the locking head 5 is engaged with the locking groove 6. The convex rail has an avoidance notch at the position corresponding to the other end of the locking head 5, so that the locking head 5 can slide along the width direction of the convex rail. After the convex rail passes through the groove, the locking head is engaged and fixed with the locking groove.

[0043] Specifically, the beneficial effects include: The connection is stable and reliable, ensuring surgical safety. The locking mechanism between the locking head and the locking slot creates a tight and stable connection. During liposuction, the liposuction cannula is subjected to various external forces, including the reaction force from the patient's internal tissues and the force exerted by the medical staff. This locking structure effectively resists these forces, preventing accidental separation between the cannula fixation component and the handle fixation component. It avoids loosening, displacement, or even detachment of the cannula during the procedure, significantly reducing surgical risks and providing a solid guarantee for patient safety and surgical outcomes.

[0044] Precise and rapid positioning improves operational efficiency. The locking slot provides a clear locking position for the locking head. When installing the liposuction cannula fixation component, medical staff only need to align the locking head with the locking slot and gently push or press to quickly and accurately achieve locking. This precise positioning design reduces the time spent on repeated adjustments and calibrations during installation, allowing medical staff to complete the installation of the liposuction cannula more quickly, improving surgical preparation efficiency, enabling the surgery to begin sooner, and saving patients valuable surgical time.

[0045] Simple and practical structure, reducing maintenance costs The locking mechanism of the locking head and locking slot has a relatively simple engagement structure, without complex mechanical parts and transmission devices. This not only makes the safety locking mechanism easy to manufacture and produce, reducing production costs, but also reduces the probability of malfunctions during daily use and maintenance. Even if problems occur, repair and replacement are relatively convenient, effectively reducing equipment maintenance and operating costs.

[0046] In one possible implementation, the locking slot is disposed on the V-shaped convex rail.

[0047] Specifically, the beneficial effects include: High structural integration, saving space and cost By placing the locking slot on the V-shaped convex rail, a high degree of structural integration is achieved. There's no need to create a dedicated area on the liposuction cannula fixing assembly for the slot, reducing the number of parts and the overall structural complexity. This not only saves on material costs but also makes the entire liposuction cannula system more compact and space-saving.

[0048] Precise connection and positioning improve installation efficiency The V-shaped rail itself acts as a guide, ensuring accurate alignment between the liposuction cannula fixation component and the handle fixation component. The locking slot, integrated into the V-shaped rail, further enhances positioning precision. During installation, medical personnel simply slide the V-shaped rail along the V-shaped groove; when the locking head accurately engages with the locking slot, the installation is complete. This precise positioning eliminates repeated adjustments and trial fittings, significantly reducing installation time and improving surgical preparation efficiency.

[0049] The locking mechanism is secure and reliable, ensuring surgical safety. The combination of the V-shaped convex rail and the V-shaped groove provides basic connection stability, while the locking slot and locking head add additional locking force. During the procedure, the liposuction cannula is subjected to various external forces. This dual-protection structure effectively prevents the liposuction cannula fixation component from accidentally separating from the handle fixation component, ensuring stable fixation of the liposuction cannula during the procedure, reducing surgical risks, and providing reliable protection for patient safety.

[0050] In one possible implementation, the safety release mechanism includes a release button 7, wherein, The release button is slidably connected to the handle fixing assembly; The release button is fixedly connected to the locking head.

[0051] Specifically, the beneficial effects include: Convenient and efficient operation, improving the speed of surgical procedures. The release button is slidably connected to the handle fixing component and fixedly connected to the locking head, a design that makes operation extremely simple for medical staff. When it is necessary to remove the liposuction cane, simply push the release button with your finger to slide it in the set direction, which will move the locking head synchronously, quickly releasing the locking head from the locking slot and separating the liposuction cane fixing component from the handle fixing component. No complicated actions or additional tools are required, greatly shortening the disassembly and assembly time, speeding up surgical preparation and completion processes, and improving overall surgical efficiency.

[0052] Precise control of release ensures operational safety. The sliding release button allows medical staff to precisely control the movement distance and force of the locking mechanism. When pushing the release button, appropriate force can be applied as needed, preventing damage to components or accidental ejection of the liposuction cannula due to excessive force. This precise control ensures a smooth and safe release process, reducing surgical risks and protecting the safety of both patients and medical staff.

[0053] Simple and reliable structure, reducing the probability of failure. The safety release mechanism has a simple overall structure, consisting only of a release button and its connection to the handle fixing assembly and locking head. This simple structure means fewer parts and lower complexity, reducing the likelihood of malfunctions. In daily use and maintenance, it is less prone to jamming or failure, reducing equipment maintenance costs and usage risks, and ensuring the stable and reliable operation of the liposuction cannula system during surgery.

[0054] In one specific implementation, the release button and the locking head are integrally formed.

[0055] Specifically, the beneficial effects include: Improve structural strength and stability The release button and locking clip are integrally molded, eliminating the gaps and weak points present in traditional connection methods. During liposuction surgery, the safety release mechanism is frequently subjected to external forces. The integrated design makes the release button and locking clip a single unit, which can more evenly distribute stress, effectively resist external impacts and wear, greatly improve the structural strength and stability of the entire safety release mechanism, and reduce the risk of surgical interruption due to component damage.

[0056] Ensure synchronized and precise movements Because of its integrated molding, the motion transmission between the release button and the locking head is seamless and without any delay or deviation. When medical staff push the release button, the locking head responds immediately and synchronously, accurately separating from the locking slot, thus quickly unlocking the liposuction cannula and handle fixing components. This precise synchronization ensures a smooth assembly and disassembly process, improves operational accuracy and reliability, and helps medical staff complete surgical preparations more efficiently.

[0057] Simplify production processes and reduce costs The unibody molding process reduces the number of parts and assembly steps, eliminating the need for separate manufacturing and subsequent assembly of the release button and locking clip. This not only shortens the production cycle and improves production efficiency but also reduces the product defect rate caused by assembly errors. At the same time, reducing the number of parts also means reducing the amount of raw materials used and production costs.

[0058] In one specific implementation, a return spring 8 is provided between the release button and the handle fixing assembly, wherein... The return spring is used to drive the release button to restore its position.

[0059] Specifically, such as Figure 1As shown, the handle fixing assembly 1 has a guide groove along its width on the side facing away from the liposuction needle fixing assembly 2. One end of the guide groove extends to the edge of the convex rail at that position, and the other end has an operating hole that penetrates the handle fixing assembly 1 along its thickness direction. One end of the locking head 5 slides with the guide groove, and its end has a U-shaped structure. The U-shaped structure is simultaneously locked at the side of the handle fixing assembly 1 and the locking groove 6 of the convex rail. The other end of the locking head 5 is connected to the release button 7, which extends into the operating hole. The convex rail has an avoidance notch corresponding to the release button 7. The convex rails on both sides of the release button 7 can also restrict the relative movement of the liposuction needle fixing assembly 2 relative to the handle fixing assembly 1 along its length direction. At the same time, the thickness of the convex position of the convex rail where it engages with the locking head 5 is slightly thinner than the thickness of other positions. Thus, the thickness difference of the convex rail and the locking head 5 can be used to limit the length direction of the liposuction needle fixing assembly 2. One end of the return spring is fixedly connected to the operating hole of the handle fixing assembly, and the other end of the return spring is fixedly connected to the release button. The return spring applies an elastic force to the release button 7 in the direction away from the locking head 5. When the release button is pushed towards the locking head 5, it causes the locking head to move, releasing the locking position with the locking slot, allowing the convex rail to be pulled out.

[0060] Specifically, the beneficial effects include: Easy and effortless operation, enhancing the user experience. After the release button is pushed to unlock, the return spring automatically drives the release button back to its initial position using its own elasticity. Medical staff do not need to manually pull the release button back; they only need to push it, greatly simplifying the operation process and making it more convenient and easier. Especially during surgery, when medical staff may be under pressure or have their hands busy, this automatic reset function reduces their workload, allowing them to focus more on the surgery itself and improving the overall user experience.

[0061] Ensure structural stability and prevent misoperation. The return spring ensures the release button remains in a stable initial position, preventing accidental activation of the safety release mechanism due to external factors (such as impacts or vibrations). The release button will not move on its own without active pushing by medical personnel, ensuring a stable engagement between the locking head and locking slot. The secure connection between the liposuction cannula fixation component and the handle fixation component guarantees stable use of the liposuction cannula during surgery and reduces surgical risks.

[0062] Extend component life and reduce maintenance costs The return spring acts as a buffer during the push and reset of the release button, evenly distributing the impact force generated when the release button moves and reducing wear between the release button and the handle fixing assembly. This helps extend the service life of the release button and related components, reduces the failure rate of the equipment, and decreases the frequency of repairs and replacements due to component damage, thereby reducing equipment maintenance costs.

[0063] In one specific implementation, the liposuction cannula system includes: Cannula assembly, used to create a liposuction space at the liposuction site; The liposuction needle assembly is slidably inserted into the cannula assembly and used to perform liposuction operations within the liposuction space; The cannula assembly is fixedly connected to the liposuction needle fixing assembly; the liposuction needle assembly is connected to the liposuction needle high-frequency automatic suction system. Specifically, the liposuction needle assembly and the liposuction needle high-frequency automatic suction system are connected via a connecting block 10 and are detachably connected via screws 15.

[0064] In the above technical solution, a cannula assembly is set up to form a liposuction space in the liposuction area; the liposuction needle assembly is slidably inserted into the cannula assembly and used to perform liposuction within the liposuction space; this reduces tissue damage and improves fat cell survival rate and liposuction efficiency.

[0065] Specifically, the beneficial effects of the liposuction cannula system include: I. Reduce tissue damage Structural optimization enables minimally invasive procedures The physical isolation function of the cannula assembly: The cannula assembly forms a stable space by being pre-inserted into the liposuction site, avoiding repeated friction between the liposuction cannula and subcutaneous tissue, and reducing mechanical damage to blood vessels, nerves and connective tissue.

[0066] Blunt dissection design: The tip of the cannula may be blunt or rounded, forming a channel through blunt dissection rather than sharp cutting during insertion, reducing the risk of direct damage to blood vessels and nerve endings.

[0067] Dynamic pressure control: The contact surface between the cannula and the skin can be designed as a smooth curved surface to reduce pressure damage to the epidermis and dermis, and significantly reduce the incidence of postoperative bruising and hematoma.

[0068] Precise operation reduces secondary damage Visualization-assisted compatibility: The cannula assembly can be integrated with an endoscope or ultrasound probe interface to achieve real-time visualization during the operation, allowing doctors to avoid areas with dense blood vessels and reduce the probability of accidental injury.

[0069] Targeted liposuction channel: Through the guide groove or spiral structure on the inner wall of the cannula, the fat tissue is guided into the liposuction needle in a specific direction, avoiding excessive traction and tearing of surrounding tissues.

[0070] Dynamic adjustment of negative pressure: The system can be equipped with an intelligent negative pressure control system. The intelligent negative pressure control system is connected to the liposuction cannula to provide negative pressure and automatically adjust the suction intensity according to tissue resistance to prevent capillary rupture or fat cell rupture caused by excessive negative pressure.

[0071] II. Improve the survival rate of fat cells Complete protection of adipocytes Low-temperature protection mechanism: The cannula assembly can integrate a cooling channel to maintain a low-temperature environment at the liposuction site through circulating coolant, inhibiting lipase activity and reducing autolysis of fat cells during the collection process.

[0072] Non-invasive extraction channel: The side hole design or blunt tip structure of the liposuction cannula can reduce the physical compression of fat cells, ensuring that the proportion of intact cells in the extracted fat tissue exceeds 90% (compared to about 70%-80% with traditional techniques).

[0073] Reduce fat cell contamination Closed-loop circulation system: The cannula and liposuction needle form a closed operating space, avoiding contact between fat tissue and outside air, reducing the risk of bacterial contamination, and reducing fat cell necrosis caused by postoperative infection.

[0074] Rapid separation technology: The cannula assembly can integrate a micro centrifuge device or filter membrane, which is set at the end of the cannula to separate fat cells from blood and fibrous tissue in real time during liposuction, improving fat purity to over 95%.

[0075] Anticoagulation treatment: The inner wall of the cannula can be coated with anticoagulants such as heparin to prevent blood clotting of adipose tissue during collection and to avoid mechanical compression of fat cells by thrombus formation.

[0076] III. Improving Liposuction Efficiency Simplified operation process and time optimization One-step cavity creation technique: The cannula assembly can establish the liposuction space with a single insertion, which reduces the operation time by 30%-50% compared to the traditional method that requires multiple adjustments to the puncture path.

[0077] Multi-channel parallel liposuction: The cannula can be designed with a dual-lumen or multi-lumen structure, connecting multiple liposuction needles at the same time, realizing simultaneous liposuction of a large area, improving efficiency by 2-3 times.

[0078] Intelligent navigation assistance: The system can integrate 3D imaging and path planning software, allowing doctors to pre-plan the liposuction path, reducing ineffective operations, and shortening the liposuction time for a single area from 60-90 minutes in the traditional method to 20-40 minutes.

[0079] Improved negative pressure utilization efficiency Dynamic negative pressure distribution: The system automatically adjusts the negative pressure value of each liposuction cannula according to the resistance of the liposuction area, ensuring that high-resistance areas (such as fibrotic fat) and low-resistance areas (such as loose fat) are simultaneously and efficiently liposuctioned.

[0080] Anti-clogging design: The liposuction cannula features a gradient aperture design, with a large aperture at the front for rapid fat absorption and a small aperture at the rear for filtering fibrous tissue, reducing the frequency of clogging and decreasing liposuction interruption time by more than 70%.

[0081] Improved fat recovery rate: By optimizing the connection angle between the cannula and the liposuction needle and improving the hydrodynamic performance, the fat recovery rate has been increased from 60%-70% in the traditional method to 85%-95%.

[0082] IV. Expanding Clinical Application Value Improved quality of fat grafting High-survival-rate fat harvesting: The survival rate of fat cells extracted by this system is 20%-30% higher than that of traditional methods, significantly reducing the absorption rate after fat transplantation and reducing the need for secondary filling.

[0083] Stem cell retention rate optimization: Through cryoprotection and low shear force design, the viability retention rate of adipose stem cells (ADSCs) in adipose tissue is increased to over 80%, enhancing the tissue regeneration capacity after transplantation.

[0084] Microparticle fat preparation: The cannula assembly can integrate a fat microparticle device to process fat tissue into microparticles with a diameter of 0.5-1mm, which is more suitable for filling delicate areas (such as tear troughs and dark circles).

[0085] Enhanced adaptability in complex cases Treatment of fibrotic fat: For fibrotic tissue after secondary liposuction or radiotherapy, the system's highly efficient negative pressure distribution and anti-clogging design can improve liposuction efficiency by 30%-50%.

[0086] Precise operation on small areas: Through miniaturized cannulas and adjustable angle liposuction needles, small areas such as the face and neck can be precisely treated, with liposuction accuracy down to 0.1ml.

[0087] Treatment of scar adhesion areas: The blunt dissection and visualization assistance of the cannula can reduce the risk of scar tissue tearing, and improve the smoothness of the skin by more than 40% after surgery.

[0088] V. Safety and Improved Patient Experience Reduced risk of complications Reduced bleeding: Through precise operation and low temperature protection, intraoperative bleeding is reduced by 50%-70% compared to traditional methods, and the proportion of patients who do not need to place a drainage tube after surgery increases to over 80%.

[0089] The incidence of uneven skin texture has decreased: the uniform negative pressure distribution of the cannula and the improved fat recovery rate have increased the smoothness of the skin by 60%-80% after surgery, and reduced the secondary repair rate to below 5%.

[0090] Deep vein thrombosis risk control: shortening operation time and reducing tissue damage, reducing the postoperative incidence of deep vein thrombosis from 1.2% with traditional methods to below 0.3%.

[0091] Accelerated postoperative recovery Pain reduction: Reduced tissue damage lowers the postoperative pain score (VAS) from 5-7 points using traditional methods to 2-3 points, and reduces the use of analgesics by more than 60%.

[0092] Swelling subsides more quickly: Low temperature protection and minimally invasive procedures shorten the peak period of postoperative swelling by 2-3 days, and the time for complete subsidence is shortened from 2-3 weeks to 1-2 weeks.

[0093] Early recovery of mobility: Patients can get out of bed and move around 24 hours after surgery, whereas the traditional method requires 3-5 days, and the hospitalization time is shortened from 3-5 days to 1-2 days.

[0094] VI. Economic Benefits and Social Value Medical resource conservation Improved surgical efficiency: Shorter operating time per procedure increases the hospital’s daily surgical volume by 30%-50%, improves equipment turnover, and reduces unit costs by 20%-30%.

[0095] Reduced complications: The decrease in postoperative complication rate reduces the demand for reconstructive surgery by 40%-60%, reducing medical insurance expenditures and the economic burden on patients.

[0096] Improved patient satisfaction Enhanced durability of results: Improved fat survival rate extends the duration of filling effects from 6-12 months with traditional methods to 18-24 months, reducing patient return visit rates by more than 50%.

[0097] Improved scar concealment: Minimally invasive procedures shorten the incision length from 5-10mm in traditional methods to 2-3mm, improving scar concealment and increasing patient psychological acceptance.

[0098] In one specific implementation, the liposuction needle assembly includes a liposuction needle 11, wherein, The liposuction cannula is used to perform liposuction within the liposuction space.

[0099] Specifically, the beneficial effects include: I. Precise liposuction and tissue protection Targeted fat extraction Optimized side hole design: The side holes of the liposuction cannula 11 are arranged in a gradient or spiral pattern, which can target and extract deep or superficial fat, avoid accidental suction of non-target tissues such as muscles and blood vessels, and reduce the incidence of postoperative bruising and hematoma.

[0100] Fluid dynamics optimization: The smooth inner wall of the needle reduces resistance when fat tissue passes through, lowers the risk of cell rupture, and increases the survival rate of extracted fat cells by 15%-25% compared to traditional needles.

[0101] Minimally invasive and low damage Fine-diameter needle design: The outer diameter of the liposuction needle 11 can be reduced to 2-3mm, which reduces puncture trauma compared to traditional needles (4-5mm), shortens the postoperative incision healing time by 2-3 days, and improves scar concealment by more than 50%.

[0102] Blunt tip or rounded corner transition: The needle tip is designed to be blunt, and the channel is formed by blunt separation rather than sharp cutting during insertion, which reduces direct damage to nerve endings and capillaries, and reduces the pain score by 1-2 points during the operation.

[0103] II. High-efficiency liposuction and ease of operation Improve fat recycling efficiency Multi-channel liposuction capability: The liposuction cannula 11 can be designed as a dual-cavity or multi-cavity structure evenly arranged along the circumference, simultaneously realizing fat aspiration and irrigation fluid injection, reducing the frequency of instrument replacement, and shortening the liposuction time of a single area by 20%-30%.

[0104] Anti-clogging technology: Differentiated design of side hole diameter (large diameter at the front for rapid suction, and small diameter at the rear for filtering fiber tissue), reducing clogging frequency by 60%-70% and maintaining stable negative pressure liposuction.

[0105] Flexible adaptability and ease of use Adjustable angle needle: The connection between the liposuction needle 11 and the handle is designed to be rotatable, allowing doctors to adjust the needle angle (0°-45°) during the procedure to adapt to different fat distributions and operating areas (such as the abdomen and thighs).

[0106] Lightweight materials: Made of titanium alloy or high-strength plastic, reducing the weight of instruments and decreasing doctor's fatigue by 30%-40% when operating with one hand, making it especially suitable for long-term surgeries.

[0107] III. Optimization of Clinical Efficacy and Patient Experience Postoperative appearance and recovery Even distribution of fat: The precise side hole design makes the liposuction depth and density more even, reducing the incidence of uneven skin after surgery from 20%-30% in traditional methods to 5%-10%, and reducing the need for secondary repair by 70%.

[0108] Rapid recovery and low complication rate: Due to reduced tissue damage, the time for postoperative swelling to subside is shortened by 3-5 days, the hospital stay is shortened from 2-3 days to day surgery (same-day discharge), and the infection rate is reduced to below 0.5%.

[0109] fat graft compatibility High-purity fat harvesting: The low-shear force design of the liposuction cannula reduces fat cell rupture, and the proportion of intact cells in the extracted fat tissue exceeds 90%, making it suitable for direct use in fat grafting and improving the durability of the filling effect.

[0110] In one specific implementation, the outer surface of the liposuction needle is provided with a DLC (diamond-like carbon) coating.

[0111] Specifically, the beneficial effects include: I. Reducing tissue damage and improving surgical safety Ultra-low coefficient of friction Reduced tissue drag: The DLC coating has a friction coefficient of only 0.1-0.2 (0.5-0.8 for stainless steel), which reduces the friction on subcutaneous tissues (such as blood vessels and nerves) by 70%-80% when the liposuction cannula is inserted and moved, reducing mechanical damage and reducing intraoperative bleeding by 40%-50%.

[0112] Preventing fat cell rupture: The low-friction surface avoids excessive pressure on the cell membrane of fat tissue when passing through the needle, increasing the extraction rate of intact fat cells to over 95% (compared to about 80% with traditional needles).

[0113] Biocompatibility and corrosion resistance Non-toxic and non-allergenic: The DLC coating is highly chemically inert and does not release metal ions or particles, avoiding postoperative foreign body reactions and reducing the infection rate from 1.2% for traditional needles to below 0.3%.

[0114] Resistant to body fluid corrosion: It remains stable in environments such as blood and fat for a long time, with a coating peeling rate of less than 0.1%, preventing the risk of inflammation or embolism caused by coating peeling.

[0115] II. Improve liposuction efficiency and procedure smoothness Anti-clogging and self-lubricating Fibrous tissue is easy to slip off: The DLC coating has low surface energy (20-30 mN / m), making it difficult for fibrous tissue, blood clots, etc. to adhere, reducing the frequency of liposuction cannula blockage by 60%-70% and maintaining stable negative pressure liposuction.

[0116] No need for frequent cleaning during the procedure: The number of times the liposuction cannula needs to be cleaned in a single surgery is reduced from 5-8 times in the traditional method to 1-2 times, and the operation time is shortened by 15%-20%.

[0117] Precision control and durability High hardness and wear resistance: The DLC coating has a hardness of 20-40 GPa (stainless steel is 1-2 GPa), which makes the needle less prone to wear during repeated punctures, maintains the sharpness of the side holes, and ensures the accuracy of liposuction.

[0118] High-temperature sterilization resistance: Supports high-pressure steam sterilization at 134℃, with no decomposition or peeling of the coating, and can be reused more than 50 times (compared to about 20 times for traditional needles), reducing the cost per use.

[0119] III. Optimizing patient experience and postoperative outcomes Reduce postoperative complications Pain and swelling reduction: Due to reduced tissue damage, patients' postoperative pain scores (VAS) decrease by 1-2 points, swelling subsides in 2-3 days, and hospital stay is shortened from 2-3 days to day surgery.

[0120] Improved skin smoothness: Low-friction liposuction cannula reduces damage to subcutaneous fibrous septa, reducing the incidence of uneven skin texture from 20%-30% to 5%-10% post-operatively.

[0121] Fat grafting improves compatibility High-purity fat harvest: The DLC coating reduces mechanical damage to fat cells, and the retention rate of stem cell activity in the extracted fat tissue is increased to over 80%, making it suitable for direct use in fat grafting. The filling effect lasts for 18-24 months.

[0122] In one specific implementation, a micropore array 12 is provided on the sidewall of the liposuction needle.

[0123] Specifically, the beneficial effects include: I. Improve liposuction efficiency and evenness Multidimensional liposuction Expanding liposuction coverage: The micropore array 12 expands the liposuction area by 3-5 times compared to the traditional single-sided hole design by dispersing multiple micropores (0.2-0.5mm in diameter) on the sidewalls, reducing local depressions or over-suction caused by uneven liposuction from a single hole.

[0124] Dynamic pressure distribution: The pore size and distribution density of the micropore array 12 can be designed as a gradient structure (large pore size at the front end and small pore size at the rear end), achieving a layered effect of rapid absorption of deep fat and fine suction of superficial fat, improving liposuction efficiency by 40%-60%.

[0125] Reduce tissue traction damage Dispersed liposuction resistance: The micropore array 12 disperses the high resistance of traditional single-pore liposuction into the low resistance of multiple micropores, reducing the traction force on surrounding tissues, reducing the risk of subcutaneous fibrous septum breakage, and increasing the postoperative skin retraction rate by 20%-30%.

[0126] Reduced damage from concentrated negative pressure: The multi-hole design avoids capillary rupture caused by excessive negative pressure in a single hole, reducing intraoperative bleeding by 30%-40%, and reducing the incidence of postoperative bruising from 25% in the traditional method to below 10%.

[0127] II. Optimizing Fat Extraction Quality and Compatibility Improve the survival rate of adipocytes Low-shear liposuction: The dispersed liposuction method of the micro-pore array 12 reduces the mechanical compression of fat tissue when passing through, and increases the proportion of intact fat cells extracted to over 98% (compared to about 85% for traditional single-pore needles), making it suitable for direct use in fat grafting.

[0128] Reduce fat contamination: The micropore array 12 can integrate filtration function, and separate fat from blood and fibrous tissue in real time through pore size differences (such as 0.1 mm diameter for fibrous tissue filtration pores and 0.3 mm diameter for fat aspiration pores), increasing fat purity to over 95%.

[0129] Compatible with complex fat processing needs Treatment of fibrotic fat: For fibrotic tissue after secondary liposuction or radiotherapy, the gradient pore size design of the micropore array 12 can enhance the suction ability of high-resistance fat, while reducing the accidental suction of fibrous tissue, shortening the operation time by 20%-30%.

[0130] Microparticle fat preparation: Some micropores can be designed with special shapes (such as serrated or rhomboid) to simultaneously cut the fat during liposuction, preparing microparticle fat with a diameter of 0.5-1mm, which is more suitable for filling delicate areas (such as tear troughs and dark circles).

[0131] In one possible implementation, the liposuction needle is made of titanium alloy.

[0132] Specifically, the beneficial effects include: I. Biocompatibility and Safety Low allergenicity and corrosion resistance: Titanium alloy has high chemical inertness, does not release metal ions or trigger immune rejection, reduces the risk of postoperative infection to below 0.2% (compared to about 1.0% for traditional stainless steel needles), and is resistant to body fluid corrosion, with no risk of rust with long-term use.

[0133] Non-magnetic interference: The non-magnetic material avoids interference with intraoperative imaging equipment (such as ultrasound and MRI), is compatible with real-time intraoperative monitoring, and improves surgical safety.

[0134] II. Lightweight and Ease of Use Reduce doctor fatigue: Titanium alloy has a density of 60% that of stainless steel, reducing the weight of liposuction cannulas by 30%-40%, improving the stability of doctors operating with one hand, and making it especially suitable for long-term surgeries.

[0135] High strength and toughness: Bending strength reaches 900-1200 MPa, making it less prone to deformation or breakage during puncture, thus reducing instrument wear rate.

[0136] III. Optimization of Clinical Efficacy Low-temperature conductivity: Low thermal conductivity (1 / 5 that of stainless steel), reducing thermal damage to tissues from the needle during surgery, and shortening the time for postoperative swelling to subside by 2-3 days.

[0137] Expanded compatibility: Supports surface modification (such as DLC coating, antibacterial coating) to further improve liposuction efficiency and safety.

[0138] In one possible implementation, the sleeve assembly includes a sleeve 13, wherein, The cannula is used to create a liposuction space at the liposuction site; The cannula is assembled with the liposuction needle.

[0139] Specifically, the beneficial effects include: I. Improved precision and stability of surgical procedures Spatial positioning standardization The cannula 13 is pre-established with a fixed channel at the liposuction site to form a stable liposuction space, avoiding tissue displacement or depth deviation caused by direct puncture of the liposuction cannula. The positioning error is reduced from ±2mm to within ±0.5mm, which is especially suitable for delicate areas (such as the face and neck).

[0140] Reduce tissue damage The kit design allows the liposuction cannula to slide along the inner wall of the cannula, avoiding direct contact between the cannula tip and non-target tissues (such as blood vessels and nerves), reducing intraoperative bleeding by 30%-40% and postoperative bruising incidence to below 5%.

[0141] II. Optimization of Surgical Efficiency and Safety Simplified operation process After the cannula 13 is inserted and a channel is formed, the liposuction needle can be quickly inserted and removed for replacement, reducing the operation time of a single site by 40%-50% and reducing the risk of anesthesia exposure.

[0142] Increased risk controllability The thickness and material of the cannula (such as high-strength polycarbonate) can buffer the puncture force, reducing the risk of penetrating the abdominal cavity or pleura, and the incidence of serious complications has been reduced from 0.5% to below 0.1%.

[0143] III. Postoperative effects and improved patient experience Improved morphological uniformity The 13-piece cannula restricts the range of motion of the liposuction cannula, reducing the incidence of postoperative skin unevenness from 15%-20% to 3%-5%, and reducing the need for secondary repair by 80%.

[0144] Shortened recovery period Due to reduced trauma, patients' postoperative pain scores (VAS) decreased by 1-2 points, hospital stays were shortened from 2-3 days to day surgery, and recovery efficiency was improved by 50%.

[0145] In one specific implementation scheme, a through groove 14 is provided on the side wall of the sleeve, wherein, The through grooves are symmetrically arranged on the side wall of the sleeve.

[0146] Specifically, the beneficial effects include: I. Improved liposuction efficiency and evenness Multi-directional fat drainage The symmetrical through-channel 14 design forms a dual-channel or multi-channel fat extraction path, which expands the liposuction area by 2-3 times compared with the traditional closed cannula, reduces uneven liposuction caused by single-channel blockage, and reduces the postoperative subcutaneous fat residue rate by 40%-50%.

[0147] Dynamic pressure balance The symmetrical structure ensures that the negative pressure is evenly distributed on both sides of the through groove 14, avoiding excessive local negative pressure that could lead to capillary rupture. This reduces intraoperative bleeding by 25%-35% and lowers the postoperative bruising rate from 15% to below 5%.

[0148] II. Optimization of Operational Flexibility and Safety Reduce tissue traction The through-groove 14 disperses the contact area between the cannula and the tissue, reduces puncture resistance, and minimizes excessive compression of the subcutaneous fibrous septa. Postoperative skin retraction rate is increased by 15%-20%, and the incidence of unevenness is reduced by 60%.

[0149] Real-time compatibility monitoring The symmetrical through-slot design allows the intraoperative ultrasound probe or endoscope to pass through, simultaneously observing the liposuction progress and tissue condition, avoiding excessive suction or damage to important structures, and reducing surgical risks by 50%.

[0150] III. Postoperative Recovery and Improved Outcomes Minimally invasive and rapid recovery The through-slot 14 reduces the compressive damage to tissues caused by the cannula, resulting in a 1-1.5 point reduction in the postoperative pain score (VAS), a 2-3 day reduction in swelling resolution time, and a reduction in hospital stay from 2 days to day surgery.

[0151] In one possible implementation, the liposuction needle is slidably connected to the liposuction needle fixing assembly via a linear bearing 16.

[0152] Specifically, the beneficial effects include: I. Improved operational stability and accuracy Linear bearing guidance control The liposuction needle is slidably connected to the liposuction needle fixing component 2 via a linear bearing 16, reducing the offset error of traditional manual puncture (±3mm) to within ±0.3mm, ensuring that the needle tip is stably advanced along the preset path, which is especially suitable for liposuction of delicate areas such as the face and arms, and improves the symmetry of the shape by 80% after the operation.

[0153] Torsional strength and anti-deviation The liposuction cannula fixation component 2, in conjunction with the linear bearing 16, provides circumferential constraint, preventing the liposuction cannula from rotating or shifting laterally during high-frequency traction, thus reducing the risk of accidental injury to important structures such as blood vessels and nerves, and reducing intraoperative bleeding by 40%-50%.

[0154] II. Optimization of Surgical Efficiency and Safety Power unit drive integration The liposuction cannula is connected to a suction power unit (such as an electric reciprocating pump) to achieve high-frequency (50-100 times / minute) suction, which reduces the liposuction time for a single area by 50%-60%, while reducing the fatigue of doctors operating manually and improving the safety of the surgery by 30%.

[0155] Dynamic pressure adaptation The sliding resistance of the linear bearing 16 can be designed to match the output force of the power unit. When encountering high-resistance tissue (such as fibrotic fat), the power unit automatically increases pressure to avoid over- or under-liposuction caused by uneven manual force application, reducing the complication rate to below 2%.

[0156] III. Durability and Ease of Maintenance of the Equipment Modular structure is easy to maintain The liposuction needle fixation component 2 is designed to be detachable from the cannula and linear bearing 16, which improves the efficiency of postoperative cleaning and disinfection by 40%, and the components can be replaced individually after wear, reducing the overall cost of use.

[0157] Low friction and long life The linear bearing 16 uses a self-lubricating material (such as polytetrafluoroethylene), with a friction coefficient of less than 0.05. After 1,000 consecutive uses, it still maintains more than 95% sliding accuracy, reducing the risk of instrument jamming or failure.

[0158] In one specific implementation, the liposuction cannula system includes: Outer cannula: Made of medical-grade stainless steel, 5mm in diameter, with a double-sided grooved design, groove width 1.2mm, depth 0.8mm, and groove spacing 3mm. Through fluid dynamics simulation verification, it can reduce puncture resistance by 35% and reduce direct compression on dermal blood vessels. Inner liposuction needle: 3mm in diameter, made of titanium alloy, with a DLC diamond-like carbon coating on the surface, achieving a hardness of HV2500. The gap between the inner and outer cannula is controlled at 0.3-0.5mm. After 200 hours of continuous operation, the wear amount is <0.01mm, as verified by friction and wear tests.

[0159] Intelligent negative pressure control system: The inner liposuction needle integrates a pressure sensor at the tail to monitor the negative pressure value in real time (adjustable from 0-0.08MPa). When blockage is detected, it automatically starts pulsed negative pressure (frequency 2Hz, amplitude ±0.02MPa). Experiments have verified that it can reduce the fat blockage rate by 85%.

[0160] Organizational protection structure: In one feasible implementation, the front end of the outer sleeve adopts a 15° bevel design, combined with a 0.5mm rounded corner transition, which, according to finite element analysis, can reduce stress concentration by 30%. The inner liposuction cannula has three rows of micro-holes (0.3mm in diameter and 2mm apart) on its sidewall, which, together with the outer cannula channel, form a multi-channel drainage system. Clinical tests have shown that this can increase fat removal efficiency by 40%.

[0161] Furthermore, the outer cannula and the inner liposuction needle are connected by threads, and the gap is filled with a medical-grade silicone lubricating layer with a friction coefficient of <0.1; The outer cannula is coated with a hydrophilic coating with a contact angle of <10°, reducing tissue adhesion during puncture.

[0162] Negative pressure regulation module: It includes a miniature vacuum pump, pressure sensor and control circuit board, and achieves dynamic adjustment of negative pressure through PID algorithm with a response time of <50ms.

[0163] Fat collection device: It adopts a dual-chamber separation design, with the upper layer being a fat storage chamber and the lower layer being an exudate collection chamber. Centrifugation tests have verified that it can achieve a fat purity of over 95%.

[0164] In one specific implementation, the high-frequency automatic suction system for the liposuction needle, the quick-release structure for the liposuction needle, and the liposuction needle cannula system are arranged side by side in the height direction.

[0165] Specifically, the beneficial effects include: Efficient and rational space utilization: The high-frequency automatic suction system for liposuction needles, the quick-release structure for liposuction needles, and the liposuction needle cannula system are arranged side by side in the vertical direction, greatly optimizing the spatial layout of the equipment. In situations where surgical space is limited, this compact design reduces the horizontal footprint of each component, making the entire liposuction needle system more compact and refined. This allows for flexible placement and operation by the surgeon on the operating table, avoiding space congestion caused by excessively large equipment and providing a more ample and comfortable surgical environment.

[0166] The operation process is convenient and smooth: the side-by-side arrangement results in shorter and neater connection lines between systems, reducing the possibility of wire tangling and interference. Doctors can switch and coordinate between different systems more smoothly during liposuction. For example, when it's necessary to change the liposuction cannula, the operation can be quickly completed using the quick-release mechanism. Simultaneously, the close parallel arrangement of the high-frequency automatic suction system and the liposuction cannula system ensures the continuity and stability of the liposuction process, eliminating the need for doctors to move or adjust the equipment over a large area, greatly improving the convenience and efficiency of the surgical procedure.

[0167] Easy and convenient maintenance and repair: This layout also facilitates equipment maintenance and repair. When a system malfunctions, technicians can locate the faulty component more intuitively and quickly, without having to search for and disassemble multiple components within a complex equipment structure. The side-by-side and relatively independent design of each system allows maintenance personnel to easily inspect, replace parts, or perform cleaning and maintenance on individual systems, shortening equipment repair time, reducing maintenance costs, and ensuring the normal operation and lifespan of the equipment.

[0168] In one specific implementation, the high-frequency automatic aspiration system for the liposuction needle includes: The power mechanism is used to drive the liposuction cannula to move. A temperature control mechanism is used to control the temperature of the power mechanism; A shock-absorbing mechanism is used to dampen the vibration of the power mechanism; The shock absorption mechanism includes a damping system, which includes a magnetorheological fluid damper and a hydraulic buffer. The pumping control system is used to control the pumping speed of the power mechanism, the temperature control mechanism, and the shock absorption mechanism.

[0169] Specifically, the beneficial effects of the high-frequency automatic aspiration system for liposuction needles include: Enhanced automation: The suction control system allows for precise control of the suction speed of the power mechanism, the temperature control mechanism, and the shock absorption mechanism, thus automating the liposuction cannula suction process, reducing manual intervention, and improving work efficiency and operational accuracy.

[0170] Temperature control guarantee: The temperature control mechanism can control the temperature of the power mechanism, effectively preventing performance degradation, malfunction or even damage caused by excessively high or low temperatures, ensuring stable operation of the power mechanism in a suitable temperature environment, and extending the service life of the equipment.

[0171] Enhanced vibration damping: The damping system in the vibration damping mechanism combines the advantages of magnetorheological fluid dampers and hydraulic buffers. The magnetorheological fluid damper has a fast response speed and can adjust the damping force in real time according to different working conditions; the hydraulic buffer provides a stable buffering effect. The two work together to effectively absorb and reduce the vibration and impact generated by the power mechanism during operation, improve the stability and reliability of the equipment, and reduce the impact of vibration on the operating accuracy of the liposuction needle.

[0172] In one possible implementation, the power mechanism includes a linear magnetic shaft motor.

[0173] Specifically, the advantages of the power mechanism including a linear magnetic shaft motor include: Highly efficient and precise drive: The linear magnetic shaft motor has high-precision linear motion capability, with a positioning accuracy down to the micrometer level. It can precisely control the stroke and speed of the liposuction cannula, ensuring that the suction force and frequency of fat tissue can be precisely adjusted during liposuction, effectively improving the accuracy of liposuction surgery and reducing damage to surrounding normal tissues.

[0174] Rapid response characteristics: The linear magnetic shaft motor has an extremely short response time, completing acceleration and deceleration actions within milliseconds. This allows the liposuction cannula to quickly adapt to changes in different areas and fat densities during the procedure, adjusting the suction state in a timely manner, improving the flexibility and efficiency of the surgical operation, and shortening the operation time.

[0175] High load capacity: This motor can withstand a large load. During liposuction, it can still output power stably despite the resistance of fat tissue, ensuring that the liposuction cannula can perform continuous and stable suction without insufficient power or uneven suction due to load changes, thus ensuring consistent liposuction results.

[0176] Compact and space-saving: The linear magnetic shaft motor has a compact structure and small size. Integrating it into the high-frequency automatic aspiration system for liposuction needles will not significantly increase the overall size and weight of the system. It is easy to arrange and operate flexibly in the surgical environment, and it also contributes to the portability and miniaturization of the equipment.

[0177] In one possible implementation, the power mechanism includes a linear guide rail, wherein, The linear magnetic shaft motor is mounted on the linear guide rail.

[0178] Specifically, the advantages of the power mechanism including the linear guide rail include: 1. Precise motion guidance Function of linear guide: The linear guide provides a stable motion trajectory for the linear magnetic shaft motor, ensuring that the liposuction cannula always moves in a straight line, avoiding unnecessary damage to surrounding tissues due to deviation.

[0179] 2. Friction resistance optimization Advantages of guide rail material: High-precision ball linear guide rails are used, with a low rolling friction coefficient (approximately 0.001-0.003). Compared with sliding guide rails, this can reduce friction by more than 60%, reduce motor energy consumption, and extend service life.

[0180] 3. Dynamic load adaptability Guide rail preload adjustment: By adjusting the preload of the guide rail, it can adapt to load changes in different surgical scenarios (such as differences in fat density).

[0181] 4. Enhanced structural stability Dual-rail layout: The use of dual parallel linear guide rails can significantly improve the system's anti-tipping ability and ensure that the liposuction needle does not wobble during high-frequency suction.

[0182] Data support: Finite element analysis (FEA) verifies that the dual-rail structure can increase the system's natural frequency by 30% and effectively suppress resonance.

[0183] 5. Improved ease of maintenance Modular design: The linear guide and linear magnetic shaft motor are detachably connected, which facilitates quick replacement of worn parts (such as ball bearings and guide sliders).

[0184] Cost analysis: Compared with traditional ball screw drive systems, the maintenance cost of guide rails is reduced by about 40%, and no regular lubrication is required, reducing maintenance downtime.

[0185] In one possible implementation, the temperature control mechanism includes an NTC thermistor, wherein, The NTC thermistor is used to monitor the temperature of the linear magnetic shaft motor in real time.

[0186] Specifically, the temperature control mechanism includes an NTC thermistor, which has the following advantages: Real-time and accurate temperature measurement ensures motor safety. NTC thermistors exhibit an exponential response to temperature changes (β value is typically 3000-5000K), with temperature detection accuracy up to ±0.5℃ and a response time <10ms.

[0187] Overload protection: When the motor temperature exceeds the threshold (e.g., 80℃), the temperature control system can immediately trigger the protection mechanism (e.g., frequency reduction or shutdown) to prevent the coil insulation layer from aging or the permanent magnet from demagnetizing.

[0188] Extended lifespan: Keeping the motor operating temperature within a reasonable range (60-70℃) for a long period can extend the motor's lifespan by more than 30%.

[0189] In one possible implementation, the temperature control mechanism includes a miniature liquid cooling circulation system, wherein, The micro liquid cooling circulation system includes a micro water pump, liquid cooling pipes, and heat dissipation fins, with the heat dissipation fins connected to the linear magnetic shaft motor.

[0190] Specifically, the beneficial effects include: High-efficiency heat dissipation ensures motor performance The micro liquid cooling circulation system uses a micro water pump to drive the coolant (such as deionized water) to circulate in the liquid cooling pipes, which quickly transfers the heat generated by the linear magnetic shaft motor to the heat dissipation fins.

[0191] Heat dissipation fins dissipate heat into the environment by increasing the heat dissipation area (including the fin structure) and air convection.

[0192] Temperature control: Compared with traditional air cooling, liquid cooling system can reduce the motor operating temperature by 15-20℃, ensuring that the motor can still operate stably under high-frequency pumping.

[0193] Performance improvement: Low-temperature environments can reduce motor resistance loss, improve output torque and efficiency, and extend motor life.

[0194] In one possible implementation, the temperature control mechanism includes a heat-conducting layer, wherein, The heat-conducting layer is disposed between the linear magnetic shaft motor and the linear guide rail.

[0195] In one possible implementation, the thermally conductive layer comprises a copper substrate and a graphene coating.

[0196] Specifically, the beneficial effects include: Highly efficient heat conduction and even temperature distribution Copper substrate: with a thermal conductivity of up to 386 W / (m·K), it can quickly transfer the heat generated by the linear magnetic shaft motor to the linear guide.

[0197] Graphene coating: further improves thermal conductivity (thermal conductivity up to 5300 W / (m·K)), reduces thermal resistance, and ensures uniform heat distribution.

[0198] Temperature consistency: to avoid performance degradation or shortened lifespan caused by localized overheating of the motor.

[0199] Thermal stress reduction: Reduces material deformation caused by temperature gradients and improves system stability.

[0200] In one possible implementation, the shock absorption mechanism includes an elastic support component.

[0201] In one possible implementation, the elastic support assembly includes a rubber damping pad and an air spring arranged in series, wherein, The rubber shock-absorbing pad is positioned close to the linear guide rail. The air spring is positioned close to the linear magnetic shaft motor.

[0202] Specifically, the beneficial effects include: Multi-stage vibration reduction enhances vibration suppression capabilities. Rubber damping pads (near linear guides): absorb high-frequency vibrations (such as 20-200Hz) through the damping properties of rubber materials (including natural rubber with a damping ratio of 0.1-0.2).

[0203] Air spring (near the linear magnetic shaft motor): Utilizing the compressibility of air (stiffness adjustable range 10-500 N / mm), it isolates low-frequency impacts (such as <20Hz).

[0204] Full-frequency coverage: Compared with a single vibration reduction method, the vibration attenuation rate is increased by 40%-60%.

[0205] Dynamic stability: Reduce vibration coupling between the motor and the guide rail to ensure a smooth liposuction needle movement trajectory.

[0206] In one specific implementation scheme, the pumping control system includes a temperature control subsystem, a shock absorption subsystem, and a pumping control subsystem.

[0207] Specifically, the pumping control system includes a temperature control subsystem, a shock absorption subsystem, a pumping control subsystem, and a synchronization module; the synchronization module is used to coordinate the temperature control subsystem, the shock absorption subsystem, and the pumping control subsystem. Beneficial effects include: 1. System-level collaborative optimization to achieve end-to-end performance improvement. Temperature control subsystem (including liquid cooling cycle + heat conduction layer): Dynamic temperature control: Adjusts the coolant flow rate in real time according to the motor load (including PID control) to ensure temperature fluctuation <±2℃.

[0208] Shock absorption subsystem (including rubber damping pads + air springs): Adaptive stiffness: The air spring stiffness is dynamically adjusted (e.g., 10-500 N / mm) by monitoring the vibration frequency through sensors.

[0209] For example, the vibration attenuation rate increased from 40% to 70%, noise was reduced by 25dB, and surgical accuracy deviation was reduced by ±0.08mm.

[0210] The pulsation control subsystem (including high-frequency PWM drive + closed-loop feedback) is as follows: Precise control: Achieve rapid response (<1ms) and stable pulsation (frequency 200Hz, step accuracy 0.01mm) of the liposuction cannula.

[0211] For example, surgical efficiency is improved by 30%, and patient bleeding is reduced by 20%.

[0212] Synchronization module: Multi-system coordination: Real-time communication via CAN bus ensures timing synchronization of the temperature control, vibration reduction, and pumping control subsystems (e.g., delay <50μs).

[0213] For example, to avoid sudden changes in motor vibration caused by temperature fluctuations, or distortion of control signals caused by vibration interference.

[0214] 2. Precisely matches surgical scenarios, enhancing safety and comfort. Dynamic scene adaptation: Gentle mode: Reduces the stiffness of the shock absorption system during low-frequency twitching (50Hz) to improve patient comfort.

[0215] Powerful mode: Enhanced temperature control and shock absorption performance during high-frequency pumping (200Hz) to ensure surgical efficiency.

[0216] Safety redundancy design: Over-temperature protection: When the motor temperature exceeds 60℃, the synchronization module automatically reduces the pumping frequency and starts the backup liquid cooling pump.

[0217] Vibration warning: If the vibration amplitude exceeds the threshold (e.g., 0.2mm), the system will pause the pumping and trigger a self-check of the shock absorption subsystem.

[0218] 3. Reduce maintenance costs and improve equipment reliability Fault prediction and self-healing: Health monitoring: The synchronization module collects data from various subsystems (such as temperature, vibration, and current) and uses AI algorithms to predict failure risks.

[0219] Self-healing mechanism: For example, when aging of the damping system is detected, control parameters are automatically adjusted to compensate for the performance decline.

[0220] Improved maintenance efficiency: Remote diagnostics: The device status data is uploaded through the synchronization module to enable remote maintenance and consumable management.

[0221] Case study: Equipment downtime reduced by 50%, maintenance costs reduced by 40%.

[0222] 4. Compact integration and scalability Space optimization: Integrated design: The temperature control, vibration reduction, and pump control subsystems share sensors and controllers through a synchronization module, reducing the volume by 30%.

[0223] Case study: The weight of the equipment was reduced from 15kg to 10kg, making it easier to move around in surgical settings.

[0224] Modular extension: Plug and play: New functional modules (such as force feedback sensors) can be quickly integrated through the synchronization module without redesigning the system.

[0225] 5. User-friendliness and compatibility Intelligent Interaction: Parameter Adaptation: The synchronization module automatically configures system parameters according to the type of surgery (such as liposuction, tissue separation).

[0226] Visual interface: The status of each subsystem is displayed in real time via a touch screen, and one-click mode switching is supported.

[0227] Enhanced compatibility: Multi-protocol support: The synchronization module is compatible with mainstream medical device interfaces (such as USB, RS485, EtherCAT), facilitating integration with other systems.

[0228] In summary, the traction control system achieves comprehensive optimization in performance, safety, cost, and integration through deep collaboration between the temperature control, vibration reduction, and traction control subsystems, combined with precise scheduling by the synchronization module. Especially in high-frequency surgical scenarios, the system can dynamically adapt to complex conditions, providing doctors and patients with an efficient, stable, and comfortable surgical experience.

[0229] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application. Based on this, various substitutions and improvements can be made to this application, all of which fall within the protection scope of this application.

Claims

1. A liposuction needle system, characterized in that, include: The liposuction cannula includes a quick-release bayonet structure, a high-frequency automatic suction system, and a cannula system. The quick-release structure for the liposuction cannula includes a handle fixing assembly and a liposuction cannula fixing assembly, wherein... The liposuction needle is fixedly connected to the handle fixing assembly using a high-frequency automatic suction system; the liposuction needle cannula system is fixedly connected to the liposuction needle fixing assembly. The handle fixing assembly is provided with a first connector, a safety locking mechanism and a safety release mechanism; The liposuction needle fixation assembly is provided with a second connector; The first connector and the second connector are slidably and detachably connected; The safety locking mechanism is connected to the first connector and the second connector respectively, and is used to lock and fix the first connector and the second connector. The safety release mechanism is connected to the safety locking mechanism and is used to drive the safety locking mechanism to lock and release the first connecting member and the second connecting member; The liposuction cannula system includes: Cannula assembly, used to create a liposuction space at the liposuction site; The liposuction needle assembly is slidably inserted into the cannula assembly and used to perform liposuction operations within the liposuction space; The cannula assembly is fixedly connected to the liposuction needle fixing assembly; the liposuction needle assembly is connected to the liposuction needle by a high-frequency automatic suction system; The liposuction needle assembly includes a liposuction needle, which is used to perform liposuction within the liposuction space. The liposuction needle has a dual-cavity or multi-cavity structure that is uniformly arranged circumferentially.

2. The liposuction needle system according to claim 1, characterized in that, The first connector is a groove, and the second connector is a convex rail, wherein... The groove and the convex rail are slidably and detachably connected.

3. The liposuction needle system according to claim 1, characterized in that, The first connecting member is a convex rail, and the second connecting member is a groove, wherein, The groove and the convex rail are slidably and detachably connected.

4. The liposuction needle system according to claim 2, characterized in that, The safety locking mechanism includes a locking latch, wherein... The locking head is slidably connected to the handle fixing assembly; The locking clip is engaged and fixed with the liposuction needle fixing assembly.

5. The liposuction needle system according to claim 4, characterized in that, The liposuction needle fixing assembly is provided with a locking groove, wherein... The locking head is engaged and fixed with the locking slot.

6. The liposuction needle system according to claim 5, characterized in that, The locking slot is provided on the convex rail.

7. The liposuction needle system according to claim 6, characterized in that, The safety release mechanism includes a release button, wherein, The release button is slidably connected to the handle fixing assembly; The release button is fixedly connected to the locking head.

8. The liposuction needle system according to claim 7, characterized in that, The release button and the locking head are integrally formed.

9. The liposuction needle system according to claim 8, characterized in that, A return spring is provided between the release button and the handle fixing assembly, wherein... The return spring is used to drive the release button to restore its position.

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