Negative pressure liposuction device for medical plastic and aesthetic surgery

Abstract

The negative pressure liposuction device comprises a machine shell, a liquid storage pipe and a collecting pipe are installed at the bottom of the side face of the machine shell, a liquid injection opening is formed in the surface of the machine shell, a suction pump is installed at the back end of the machine shell, a connecting pipe is connected between the suction pump and a cover plate at the top end of the collecting pipe, and a top plate slides in the liquid storage pipe. According to the device, through the arrangement of the top plate, the adjusting pipe, the electric push rod and the suction force adjusting mechanism, the suction force in an area with more or less fat is adjusted according to the input amount of the swelling liquid, and fat tissues can be separated and liquefied more effectively by increasing the input amount of the swelling liquid in the area with more fat; the suction process is smoother, fat can be sucked more quickly through large suction force, the operation time is shortened, and the risk of injury to subcutaneous tissue can be reduced by reducing the input amount of swelling liquid and the suction force in an area with the small fat amount.

Description

Technical Field

[0001] The invention relates to the technical field of negative pressure liposuction devices, in particular to a negative pressure liposuction device for medical cosmetic surgery. Background Art

[0002] The negative pressure liposuction device uses the principle of vacuum negative pressure to break up the accumulated fat in the human body and discharge it out of the body through a specific suction tube. The negative pressure liposuction device uses minimally invasive technology, which causes less damage to the skin and tissues and allows for faster recovery after surgery. The negative pressure liposuction technology has been developed since the 1970s and has gradually become one of the important technologies in the field of medical cosmetic surgery. With the advancement of anesthesia and surgical technology, modern liposuction technology has gradually improved, and the negative pressure liposuction device has also undergone many improvements and optimizations. At present, the negative pressure liposuction device has become one of the popular cosmetic surgery equipment at home and abroad.

[0003] Since the subcutaneous fat content in different areas of the human body may be different, it is not convenient to adjust the suction force when the existing negative pressure liposuction device extracts fat from different areas. When extracting fat from areas with more fat, the doctor needs to continue to suction this area, which may cause fatigue of the arm and wrist, affecting the accuracy and efficiency of the operation. In areas with less fat, due to the sparse fat particles, the doctor needs to be more delicate and patient during the operation, which may cause the operation time to be prolonged and reduce the efficiency of the operation. In addition, when the fat is continuously extracted, the fat in the liposuction bag continues to increase, reducing the space in the liposuction bag, thereby increasing the negative pressure in the bag, causing the suction force of the liposuction needle to change, making it inconvenient to extract the fat. In view of the above problems, it is urgent to carry out innovative design on the original basis. Summary of the invention

[0004] The purpose of the present invention is to provide a negative pressure liposuction device for medical cosmetic surgery to solve the problem proposed in the above background technology that it is inconvenient to adjust the suction force when extracting fat from different areas. When the fat is continuously extracted, the suction force of the liposuction needle changes due to the continuous increase of fat in the liposuction bag, making it inconvenient to extract the fat. The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: comprising a casing, a liquid storage tube and a collecting tube are installed at the bottom of the side of the casing, a liquid injection port is installed on the surface of the casing, a suction pump is installed at the back end of the casing, a connecting tube is connected between the suction pump and the top cover plate of the collecting tube, a top plate is slidably provided inside the liquid storage tube, an adjusting tube is installed at the side end of the casing, the adjusting tube is connected to the connecting tube, an electric push rod is installed in the cavity at the bottom end of the liquid storage tube, the extended end of the electric push rod is connected to the bottom end of the liquid storage tube, a suction adjusting mechanism is installed in the adjusting tube, the suction adjusting mechanism is used to adjust the suction force according to the added amount of solvent, a placing table is installed inside the collecting tube, a pressure table is slidably connected inside the placing table, an air intake pipe is installed on the surface of the casing, and the air intake pipe is connected to the connecting pipe; A pressure compensation component, which is arranged on the side of the housing and the bottom of the placement table, and is used to balance the suction force of the liposuction needle; The extrusion synchronization component is arranged at the bottom of the top plate and the side of the casing. When the liposuction speed is fast or slow, the extrusion synchronization component can make the negative pressure in the liposuction bag change synchronously.

[0006] Preferably, a slide bar is installed at the bottom of the pressure platform; the slide bar slides inside the placement platform, and a spring is sleeved on the surface of the slide bar.

[0007] Preferably, the suction adjustment mechanism includes a first oil tank installed at the bottom end of the bottom cavity of the casing, a first piston rod slidingly connected inside the first oil tank, a gear ring rotatably connected inside the adjustment tube, a closing plate rotatably connected inside the adjustment tube, a connecting rod rotatably connected to the surface of the closing plate, the other end of the connecting rod is rotatably connected to the gear ring, a second oil tank is installed on the side of the casing, a second piston rod slidingly connected inside the second oil tank, a rack is installed on the end of the second piston rod, and a hose is connected between the first oil tank and the second oil tank.

[0008] Preferably, the number of the closing plates and the connecting rods are both four groups, and the closing plates and the connecting rods are evenly distributed in a circular shape inside the regulating tube.

[0009] Preferably, the closing plate is fan-shaped, one end of the closing plate is rotatably connected to the regulating tube, and the other end of the closing plate is rotatably connected to one end of a connecting rod, and the connecting rod is arc-shaped.

[0010] Preferably, the pressure compensation component includes a third oil tank installed at the bottom of the placement table, a third piston rod is slidably connected to the inside of the third oil tank, and also includes a movable tube sliding inside the air intake pipe, a pressure block is installed at the bottom of the movable tube, a fourth oil tank is installed on the side of the casing, a fourth piston rod is slidably connected to the inside of the fourth oil tank, a moving table is installed on the end of the fourth piston rod, an extrusion plate is rotatably connected to the upper end of the moving table, and a hose is connected between the third oil tank and the fourth oil tank.

[0011] Preferably, the movable tube is in a square tube shape, and the upper end of the movable tube is open and the lower end is closed; a leakage hole is opened on the surface of the movable tube.

[0012] Preferably, a slide rod is connected between the movable tube and the pressing block, and a spring is sleeved on the surface of the slide rod; the bottom of the pressing block is provided with a rounded corner, and the surface of the extrusion plate is smooth.

[0013] Preferably, the extrusion synchronization component includes a fifth oil tank installed at the bottom end of the bottom cavity of the casing, a fifth piston rod is slidably connected inside the fifth oil tank, and the top end of the fifth piston rod is connected to the bottom of the top plate. It also includes a sixth oil tank installed at the bottom of the moving platform, a sixth piston rod is slidably connected inside the sixth oil tank, and a rotating block is rotatably connected to the top end of the sixth piston rod, and the rotating block is slidably connected to the slide groove at the bottom end of the extrusion plate, and a hose is connected between the fifth oil tank and the sixth oil tank.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, through the top plate, adjustment tube, electric push rod and suction adjustment mechanism, can adjust the suction force in the area with more or less fat by the input amount of tumescent fluid. In the area with more fat, increasing the input amount of tumescent fluid can more effectively separate and liquefy fat tissue, making the suction process smoother. A larger suction force can absorb fat faster and shorten the operation time. In the area with less fat, reducing the input amount of tumescent fluid and the suction force can reduce the risk of damage to subcutaneous tissue. By adjusting the input amount of tumescent fluid and the suction force, it can be ensured that fat is evenly extracted in different areas to avoid local over-extraction or under-extraction.

[0015] 2. The present invention, through the provision of a liquid storage tube, a placement table, a pressure table, an air inlet pipe and a pressure compensation component, can balance the negative pressure in the bag when the fat in the liposuction bag continues to increase and the space gradually decreases, and the negative pressure in the bag increases, to ensure that the suction force of the liposuction needle can be consistent with the initial suction force, thereby avoiding uneven fat extraction. By balancing the negative pressure in the bag, it can be ensured that the liposuction needle has the same suction force at different stages, thereby avoiding the problem of uneven fat extraction. The balanced negative pressure can ensure the smooth extraction of fat during the operation and reduce the interruption of the operation due to suction changes.

[0016] 3. The present invention, through the provision of the extrusion synchronization component and the top plate, when the suction force is large or small, the increase in the amount of fat inside the liposuction bag will also be accelerated or slowed down synchronously. At this time, the input amount of the swelling fluid can control the speed of the negative pressure change in the liposuction bag to be synchronized with the fat collection speed. According to the fat collection speed, the negative pressure inside the liposuction bag can be continuously supplemented, thereby achieving precise control of the surgical process, ensuring the uniformity and accuracy of fat extraction, and avoiding the interruption of the operation due to negative pressure fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 It is a schematic diagram of the suction force adjustment mechanism structure; Figure 5 This is a schematic diagram of the internal structure of the regulating tube; Figure 6 It is a schematic diagram of the exploded structure of the gear ring and the closing plate; Figure 7 It is a schematic diagram of the structure of the pressure compensation component; Figure 8 This is a schematic diagram of the explosion structure of the pressure compensation component; Fig. 9 It is a schematic diagram of the structure of the extrusion synchronization component.

[0018] In the figure: 1. casing; 2. liquid storage pipe; 3. collecting pipe; 4. liquid filling port; 5. suction pump; 6. top plate; 7. adjusting pipe; 8. electric push rod; 9. suction force adjusting mechanism; 901. first oil tank; 902. first piston rod; 903. gear ring; 904. closing plate; 905. connecting rod; 906. second oil tank; 907. second piston rod; 908. rack; 10. placing table; 11. pressure table; 12. air intake pipe; 13. pressure compensation component; 131. third oil tank; 132. third piston rod; 133. movable pipe; 134. pressing block; 135. fourth oil tank; 136. fourth piston rod; 137. moving table; 138. extrusion plate; 14. extrusion synchronization component; 141. fifth oil tank; 142. fifth piston rod; 143. sixth oil tank; 144. sixth piston rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 9 The present invention provides a technical solution: a negative pressure liposuction device for medical cosmetic surgery, comprising a casing 1, a liquid storage tube 2 and a collecting tube 3 are installed at the bottom of the side of the casing 1, a liquid injection port 4 is installed on the surface of the casing 1, a suction pump 5 is installed at the back end of the casing 1, a connecting tube is connected between the suction pump 5 and the top cover plate of the collecting tube 3, a top plate 6 is slidably provided inside the liquid storage tube 2, an adjusting tube 7 is installed at the side end of the casing 1, the adjusting tube 7 is connected to the connecting tube, an electric push rod 8 is installed in the cavity at the bottom end of the liquid storage tube 2, the protruding end of the electric push rod 8 is connected to the bottom end of the liquid storage tube 2, a suction adjusting mechanism 9 is installed in the adjusting tube 7, and the suction adjusting mechanism 9 is used to adjust the suction force by the amount of solvent added, a placing table 10 is installed inside the collecting tube 3, a pressure platform 11 is slidably connected inside the placing table 10, an air inlet pipe 12 is installed on the surface of the casing 1, and the air inlet pipe 12 is connected to the connecting pipe; A pressure compensation component 13, which is arranged on the side of the housing 1 and the bottom of the placement table 10, and is used to balance the suction force of the liposuction needle; The extrusion synchronization component 14 is arranged at the bottom of the top plate 6 and the side of the housing 1. The extrusion synchronization component 14 can make the negative pressure in the liposuction bag change synchronously when the liposuction speed is fast or slow; When extracting fat from different areas, it is inconvenient to adjust the suction force. When the fat is continuously extracted, the fat in the liposuction bag continues to increase, causing the suction force of the liposuction needle to change, making it inconvenient to extract the fat. When working, first install the liposuction bag in the collection tube 3, add swelling fluid to the storage tank, and then connect the hose to the injection port 4. The injection port 4 will input the swelling fluid into the fat through the hose. When the solution in the collection tube 3 decreases, the electric push rod 8 will push the top plate 6 to move upward, so that the solution in the collection tube 3 is always The liposuction needle is then connected to the suction port at the top of the collecting tube 3. When the top plate 6 moves upward, it drives the first piston rod 902 to move upward. At this time, the oil in the first oil tank 901 is injected into the second oil tank 906, pushing the second piston rod 907 to drive the rack 908 to move. When the rack 908 moves, it drives the gear ring 903 to rotate. The gear ring 903 slowly closes the closing plate 904 through the connecting rod 905. The opening and closing degree of the closing plate 904 can control the air intake in the regulating tube 7, thereby changing the suction force. As an embodiment of the present invention, a slide bar is installed at the bottom of the pressure platform 11; the slide bar slides inside the placement platform 10, and a spring is sleeved on the surface of the slide bar. There are four groups of slide bars, which are evenly distributed in a circular shape at the bottom of the pressure platform 11. The upper end of the spring is connected to the bottom of the pressure platform 11, and the lower end of the spring is connected to the top of the placement platform 10. The spring can automatically reset the pressure platform 11. As an embodiment of the present invention, the suction adjustment mechanism 9 includes a first oil tank 901 installed at the bottom end of the bottom cavity of the casing 1, a first piston rod 902 slides inside the first oil tank 901, a gear ring 903 is rotatably connected inside the adjustment tube 7, a closing plate 904 is also rotatably connected inside the adjustment tube 7, a connecting rod 905 is rotatably connected to the surface of the closing plate 904, and the other end of the connecting rod 905 is rotatably connected to the gear ring 903, a second oil tank 906 is installed on the side of the casing 1, a second piston rod 907 is slidably connected inside the second oil tank 906, a rack 908 is installed at the end of the second piston rod 907, and a hose is connected between the first oil tank 901 and the second oil tank 906. In areas with a large amount of fat, increasing the input amount of tumescent fluid can more effectively separate and liquefy fat tissue, making the suction process smoother, and a larger suction force can absorb fat faster and shorten the operation time. In areas with a small amount of fat, reducing the input amount of tumescent fluid and the suction force can reduce the risk of damage to subcutaneous tissue. As an embodiment of the present invention, the number of closing plates 904 and connecting rods 905 is four, and the closing plates 904 and connecting rods 905 are evenly distributed in a circular shape inside the adjusting tube 7. When the gear ring 903 rotates, the four groups of connecting rods 905 can be driven to move synchronously, thereby opening the four groups of closing plates 904 at the same time. As an embodiment of the present invention, the closing plate 904 is fan-shaped, one end of the closing plate 904 is rotatably connected to the adjusting tube 7, and the other end is rotatably connected to one end of the connecting rod 905, and the connecting rod 905 is arc-shaped. When the gear ring 903 rotates, the arc-shaped connecting rod 905 can better bear the force, thereby driving the closing plate 904 to open; As an embodiment of the present invention, the pressure compensation component 13 includes a third oil tank 131 installed at the bottom of the placement table 10, a third piston rod 132 is slidably connected inside the third oil tank 131, and also includes a movable tube 133 sliding inside the air intake pipe 12, a pressure block 134 is installed at the bottom of the movable tube 133, a fourth oil tank 135 is installed on the side of the casing 1, a fourth piston rod 136 slides inside the fourth oil tank 135, a moving platform 137 is installed at the end of the fourth piston rod 136, and an extrusion plate 138 is rotatably connected to the upper end of the moving platform 137, and a hose is connected between the third oil tank 131 and the fourth oil tank 135. When the fat in the liposuction bag continues to increase, the space gradually decreases, and the negative pressure in the bag increases, the negative pressure in the bag is balanced to ensure that the suction force of the liposuction needle can be consistent with the initial suction force; As an embodiment of the present invention, the movable tube 133 is in a square tube shape, and the upper end of the movable tube 133 is open and the lower end is closed; a leak hole is opened on the surface of the movable tube 133, and the square tube-shaped movable tube 133 can fit with the inner wall of the air inlet pipe 12, and when the leak hole coincides with the air inlet of the inner wall of the air inlet pipe 12, the negative pressure inside the liposuction bag can be supplemented; As an embodiment of the present invention, a slide rod is connected between the movable tube 133 and the pressing block 134, and a spring is sleeved on the surface of the slide rod; the bottom of the pressing block 134 is provided with a rounded corner, and the surface of the extrusion plate 138 is smooth. The smooth surface design of the extrusion plate 138 can reduce the resistance when the pressing block 134 is squeezed, and the design of the spring on the surface of the slide rod can automatically reset when the pressing block 134 loses the squeeze; As an embodiment of the present invention, the extrusion synchronization component 14 includes a fifth oil tank 141 installed at the bottom end of the bottom cavity of the casing 1, and a fifth piston rod 142 is slidably connected inside the fifth oil tank 141, and the top of the fifth piston rod 142 is connected to the bottom of the top plate 6. It also includes a sixth oil tank 143 installed at the bottom of the movable platform 137, and a sixth piston rod 144 is slidably connected inside the sixth oil tank 143. A rotating block is rotatably connected to the top of the sixth piston rod 144, and the rotating block is slidably connected to the sliding groove at the bottom end of the extrusion plate 138. A hose is connected between the fifth oil tank 141 and the sixth oil tank 143, and the speed of the negative pressure change in the liposuction bag can be controlled to be synchronized with the fat collection speed according to the input amount of the swelling fluid, thereby ensuring the uniformity and accuracy of fat extraction.

[0021] Working principle: when in use, first install the liposuction bag in the collecting tube 3, add swelling fluid into the liquid storage tank, then connect the hose to the injection port 4, the injection port 4 will input the swelling fluid into the fat through the hose, when the solution inside the collecting tube 3 is reduced, the electric push rod 8 will push the top plate 6 to move upward, so that the solution inside the collecting tube 3 is always in the same plane, then connect the liposuction needle to the suction port at the top of the collecting tube 3, the top plate 6 will drive the first piston rod 902 to move upward when moving upward, at this time the oil inside the first oil tank 901 will be injected into the second oil tank 906, pushing the second piston rod 907 to drive the rack 908 to move, the rack 908 will drive the gear ring 903 to rotate when moving, the gear ring 903 will slowly close the closing plate 904 through the connecting rod 905, the opening and closing degree of the closing plate 904 can control the air intake in the regulating tube 7, thereby changing the suction force; When the top plate 6 moves upward, the fifth piston rod 142 moves upward, so that the oil in the fifth oil tank 141 is injected into the sixth oil tank 143, pushing the sixth piston rod 144 upward, so that the squeezing plate 138 rotates on the surface of the moving platform 137, thereby changing the inclination of the squeezing plate 138; When the fat inside the liposuction bag continues to increase, the weight of the liposuction bag will increase, thereby squeezing the pressure platform 11 downward on the surface of the placement platform 10. When the placement platform 10 moves downward, it will squeeze the third piston rod 132. At this time, the oil inside the third oil tank 131 will be injected into the fourth oil tank 135, so that the fourth piston rod 136 drives the moving platform 137 to move. At this time, the squeezing plate 138 will squeeze the pressing block 134, so that the leakage hole on the surface of the movable tube 133 gradually coincides with the air inlet inside the air inlet pipe 12, thereby reducing the negative pressure inside the liposuction bag.

[0022] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A negative pressure liposuction device for medical cosmetic surgery, comprising a housing (1), characterized in that: A liquid storage tube (2) and a collecting tube (3) are installed at the bottom of the side of the casing (1); a liquid injection port (4) is installed on the surface of the casing (1); a suction pump (5) is installed at the back end of the casing (1); a connecting tube is connected between the suction pump (5) and the top cover plate of the collecting tube (3); a top plate (6) is slidably arranged inside the liquid storage tube (2); an adjusting tube (7) is installed at the side end of the casing (1); the adjusting tube (7) is connected to the connecting tube; an electric plug is installed in the cavity at the bottom end of the liquid storage tube (2); A push rod (8) is provided, wherein the extended end of the push rod (8) is connected to the bottom end of the liquid storage tube (2), a suction adjustment mechanism (9) is installed in the adjustment tube (7), and the suction adjustment mechanism (9) is used to adjust the suction force by the amount of solvent added, a placement table (10) is installed inside the collection tube (3), and a pressure table (11) is slidably connected inside the placement table (10), and an air intake pipe (12) is installed on the surface of the housing (1), and the air intake pipe (12) is connected to the connecting pipe; A pressure compensation component (13), the pressure compensation component (13) being arranged on the side of the housing (1) and the bottom of the placement table (10), the pressure compensation component (13) being used to balance the suction force of the liposuction needle; An extrusion synchronization component (14), wherein the extrusion synchronization component (14) is arranged at the bottom of the top plate (6) and the side of the housing (1), and the extrusion synchronization component (14) can cause the negative pressure in the liposuction bag to change synchronously when the liposuction speed is fast or slow.

2. A negative pressure liposuction device for medical cosmetic surgery according to claim 1, characterized in that: A sliding rod is installed at the bottom of the pressure platform (11); the sliding rod slides inside the placement platform (10), and a spring is sleeved on the surface of the sliding rod.

3. A negative pressure liposuction device for medical cosmetic surgery according to claim 1, characterized in that: The suction force adjustment mechanism (9) comprises a first oil tank (901) mounted at the bottom end of the bottom cavity of the housing (1); a first piston rod (902) is slidably disposed inside the first oil tank (901); a gear ring (903) is rotatably connected inside the adjustment tube (7); a closing plate (904) is also rotatably connected inside the adjustment tube (7); a connecting rod (905) is rotatably connected to the surface of the closing plate (904); the other end of the connecting rod (905) is rotatably connected to the gear ring (903); a second oil tank (906) is mounted on the side of the housing (1); a second piston rod (907) is slidably disposed inside the second oil tank (906); a rack (908) is mounted on the end of the second piston rod (907); and a hose is connected between the first oil tank (901) and the second oil tank (906).

4. A negative pressure liposuction device for medical cosmetic surgery according to claim 3, characterized in that: The number of the closing plates (904) and the connecting rods (905) is four, and the closing plates (904) and the connecting rods (905) are evenly distributed in a circular shape inside the regulating tube (7).

5. A negative pressure liposuction device for medical cosmetic surgery according to claim 3, characterized in that: The closing plate (904) is fan-shaped, one end of the closing plate (904) is rotatably connected to the regulating tube (7), and the other end is rotatably connected to one end of a connecting rod (905), and the connecting rod (905) is arc-shaped.

6. A negative pressure liposuction device for medical cosmetic surgery according to claim 5, characterized in that: The pressure compensation component (13) comprises a third oil tank (131) mounted at the bottom of the placement table (10), a third piston rod (132) being slidably connected inside the third oil tank (131), and a movable tube (133) sliding inside the air intake pipe (12), a pressure block (134) being mounted at the bottom of the movable tube (133), a fourth oil tank (135) being mounted on the side of the housing (1), a fourth piston rod (136) sliding inside the fourth oil tank (135), a movable platform (137) being mounted at the end of the fourth piston rod (136), an upper end of the movable platform (137) being rotatably connected to an extrusion plate (138), and a hose being connected between the third oil tank (131) and the fourth oil tank (135).

7. A negative pressure liposuction device for medical cosmetic surgery according to claim 1, characterized in that: The movable tube (133) is in the shape of a square tube, and the upper end of the movable tube (133) is open and the lower end is closed; a leakage hole is provided on the surface of the movable tube (133).

8. A negative pressure liposuction device for medical cosmetic surgery according to claim 7, characterized in that: A sliding rod is connected between the movable tube (133) and the pressing block (134), and a spring is sleeved on the surface of the sliding rod; a rounded corner is provided at the bottom of the pressing block (134), and the surface of the extrusion plate (138) is smooth.

9. A negative pressure liposuction device for medical cosmetic surgery according to claim 1, characterized in that: The extrusion synchronization component (14) includes a fifth oil tank (141) installed at the bottom end of the bottom cavity of the housing (1), a fifth piston rod (142) is slidably connected inside the fifth oil tank (141), and the top end of the fifth piston rod (142) is connected to the bottom of the top plate (6). It also includes a sixth oil tank (143) installed at the bottom of the moving platform (137), a sixth piston rod (144) is slidably connected inside the sixth oil tank (143), and a rotating block is rotatably connected to the top end of the sixth piston rod (144), and the rotating block is slidably connected to the sliding groove at the bottom end of the extrusion plate (138), and a hose is connected between the fifth oil tank (141) and the sixth oil tank (143).

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