A negative pressure liposuction device for medical cosmetic surgery

Abstract

The present invention discloses a negative pressure liposuction device for medical cosmetic surgery, comprising a housing, a liquid storage tube and a collection tube installed at the bottom of the side of the housing, a liquid injection port installed on the surface of the housing, a suction pump installed at the back end of the housing, a connecting tube connected between the suction pump and the top cover of the collection tube, and a top plate sliding inside the liquid storage tube. The present invention, through the provision of a top plate, an adjustment tube, an electric push rod and a suction adjustment mechanism, can adjust the suction force in an area with a large or small amount of fat by adjusting the input amount of tumescent fluid. 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. A larger suction force can quickly absorb fat 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.

Description

Technical Field

[0001] The present 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] Vacuum liposuction utilizes the principle of vacuum and negative pressure to break up and expel accumulated fat from the body through a specialized suction tube. Minimally invasive, this technique minimizes damage to skin and tissue, ensuring a rapid postoperative recovery. Vacuum liposuction technology has been developing since the 1970s and has gradually become a key technology in cosmetic surgery. With advances in anesthesia and surgical techniques, modern liposuction techniques have been refined, and vacuum liposuction has undergone numerous improvements and optimizations. Currently, vacuum liposuction has become a popular cosmetic surgery device both domestically and internationally.

[0003] Because the subcutaneous fat content in different areas of the human body may vary, existing negative pressure liposuction devices are not convenient for adjusting the suction force when extracting fat from different areas. When extracting fat from areas with more fat, the doctor needs to continuously suction the area, which may cause fatigue in the arms and wrists, 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 when operating, 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 inside the liposuction bag, thereby increasing the negative pressure inside the bag, causing the suction force of the liposuction needle to change, making it inconvenient to extract the fat. In response to the above problems, it is urgent to carry out innovative designs based on the original ones. 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 raised in the above-mentioned background technology that it is inconvenient to adjust the suction force when extracting fat from different areas. 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. The technical solution of the present invention addresses 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 solutions: 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 protruding 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 amount of solvent added, a placing table is installed inside the collecting tube, a pressure table is slidably connected to the placing table, an air inlet pipe is installed on the surface of the casing, and the air inlet pipe is connected to the connecting pipe;

[0006] A pressure compensation component is provided 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;

[0007] The extrusion synchronization component is arranged at the bottom of the top plate and the side of the casing. The extrusion synchronization component can make the negative pressure in the liposuction bag change synchronously when the liposuction speed is fast or slow.

[0008] Preferably, a sliding rod is installed at the bottom of the pressure platform; the sliding rod slides inside the placement platform, and a spring is sleeved on the surface of the sliding rod.

[0009] 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 sliding 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.

[0010] Preferably, the number of the closing plates and connecting rods is four, and the closing plates and connecting rods are evenly distributed in a circular shape inside the regulating tube.

[0011] Preferably, the closing plate is fan-shaped, one end of the closing plate is rotatably connected to the regulating tube, and the other end is rotatably connected to one end of a connecting rod, and the connecting rod is arc-shaped.

[0012] 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 slid inside the fourth oil tank, a movable table is installed on the end of the fourth piston rod, an extrusion plate is rotatably connected to the upper end of the movable table, and a hose is connected between the third oil tank and the fourth oil tank.

[0013] 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.

[0014] Preferably, a sliding rod is connected between the movable tube and the pressing block, and a spring is sleeved on the surface of the sliding rod; the bottom of the pressing block is provided with a rounded corner, and the surface of the extrusion plate is smooth.

[0015] 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 to the inside of 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 movable platform, a sixth piston rod is slidably connected to the inside of the sixth oil tank, and the top end of the sixth piston rod is rotatably connected to a rotating block, and the rotating block is slidably connected to the sliding groove at the bottom end of the extrusion plate, and a hose is connected between the fifth oil tank and the sixth oil tank.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention, through the provision of a top plate, adjustment tube, electric push rod, and suction adjustment mechanism, adjusts the suction force in areas with more or less fat by adjusting the amount of tumescent fluid input. In areas with more fat, increasing the amount of tumescent fluid input can more effectively separate and liquefy adipose tissue, making the suction process smoother. A greater suction force can extract fat faster and shorten the surgical time. In areas with less fat, reducing the amount of tumescent fluid input and suction force can reduce the risk of damage to subcutaneous tissue. By adjusting the amount of tumescent fluid input and suction force, fat can be evenly extracted in different areas, avoiding local over-extraction or under-extraction.

[0018] 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. This ensures 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 smooth fat extraction during the operation and reduce the interruption of the operation due to suction changes.

[0019] 3. The present invention, through the provision of the extrusion synchronization component and the top plate, can simultaneously accelerate or slow down the amount of fat added inside the liposuction bag when the suction force is large or small. At this time, the input amount of the tumescent fluid can control the speed of the negative pressure change in the liposuction bag to be synchronized with the fat collection speed. The negative pressure inside the liposuction bag can be continuously replenished according to the fat collection speed, 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

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0023] Figure 4 Schematic diagram of the suction adjustment mechanism structure;

[0024] Figure 5 Schematic diagram of the internal structure of the regulating tube;

[0025] Figure 6 Schematic diagram of the exploded structure of the gear ring and the closing plate;

[0026] Figure 7 It is a schematic diagram of the structure of the pressure compensation component;

[0027] Figure 8 This is a schematic diagram of the explosion structure of the pressure compensation component;

[0028] Figure 9 Schematic diagram of the extrusion synchronization component structure.

[0029] 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 adjustment 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 assembly; 131. third oil tank; 132. third piston rod; 133. movable pipe; 134. pressure block; 135. fourth oil tank; 136. fourth piston rod; 137. moving table; 138. extrusion plate; 14. extrusion synchronization assembly; 141. fifth oil tank; 142. fifth piston rod; 143. sixth oil tank; 144. sixth piston rod. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1-9 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 according to the amount of solvent added, a placing table 10 is installed inside the collecting tube 3, a pressure platform 11 is slidably connected to 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;

[0032] A pressure compensation component 13 is provided on the side of the housing 1 and the bottom of the placement table 10. The pressure compensation component 13 is used to balance the suction force of the liposuction needle;

[0033] 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;

[0034] 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, which makes the suction force of the liposuction needle change, making it inconvenient to extract the fat. When working, first install the liposuction bag in the collection tube 3, then add the swelling fluid into the liquid storage tube 2, 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 inside the liquid storage tube 2 is reduced, the electric push rod 8 will push the top plate 6 to move upward, so that the solution inside the liquid storage tube 2 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 will be 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 ring gear 903 to rotate. The ring gear 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.

[0035] As an embodiment of the present invention, a slide rod is installed at the bottom of the pressure platform 11; the slide rod slides inside the placement platform 10, and a spring is provided on the surface of the slide rod. There are four sets of slide rods, 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.

[0036] 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 to the inside of the adjustment tube 7, a closing plate 904 is also rotatably connected to the inside of 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 to the inside of 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. 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.

[0037] 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 regulating tube 7. When the ring gear 903 rotates, it can drive the four groups of connecting rods 905 to move synchronously, thereby opening the four groups of closing plates 904 at the same time.

[0038] 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 adjustment tube 7, and the other end is rotatably connected to one end of the connecting rod 905. The connecting rod 905 is arc-shaped. When the ring gear 903 rotates, the arc-shaped connecting rod 905 can better bear the force, thereby driving the closing plate 904 to open.

[0039] As an embodiment of the present invention, the pressure compensation assembly 13 includes a third oil tank 131 installed at the bottom of the placement table 10, and a third piston rod 132 is slidably connected to the interior of the third oil tank 131, and also includes a movable tube 133 sliding inside the air intake pipe 12, and 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, and a fourth piston rod 136 slides inside the fourth oil tank 135. A movable 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 movable platform 137. 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;

[0040] As an embodiment of the present invention, the movable tube 133 is in the shape of a square tube, with an open upper end and a closed lower end. A leakage hole is formed 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. When the leakage hole and the air inlet port on the inner wall of the air inlet pipe 12 coincide with each other, the negative pressure inside the liposuction bag can be supplemented.

[0041] 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 provided 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. The design of the spring on the surface of the slide rod can automatically reset when the pressing block 134 loses its squeeze.

[0042] 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 the fifth oil tank 141 is slidably connected to the inside of the fifth oil tank 141 with a fifth piston rod 142, 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 the sixth oil tank 143 is slidably connected to the inside of the sixth oil tank 144, and the top of the sixth piston rod 144 is rotatably connected to a rotating block, 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, which can control the speed of the negative pressure change in the liposuction bag 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.

[0043] Working principle: When in use, first install the liposuction bag in the collection tube 3, then add the tumescent fluid into the liquid storage tube 2, and then connect the hose to the liquid injection port 4. The liquid injection port 4 will input the tumescent fluid into the fat through the hose. When the solution inside the liquid storage tube 2 decreases, the electric push rod 8 will push the top plate 6 to move upward, so that the solution inside the liquid storage tube 2 is always in the same plane. Then the liposuction needle is connected to the suction port at the top of the collection tube 3. When the top plate 6 moves upward, it will drive the first piston rod 902 to move 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. When the rack 908 moves, it will drive the gear ring 903 to rotate. 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.

[0044] When the top plate 6 moves upward, it drives the fifth piston rod 142 upward, causing the oil in the fifth oil tank 141 to flow into the sixth oil tank 143, pushing the sixth piston rod 144 upward, causing the squeezing plate 138 to rotate on the surface of the moving platform 137, thereby changing the inclination of the squeezing plate 138;

[0045] 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 movable platform 137 to move. At this time, the extrusion plate 138 will squeeze the pressure 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.

[0046] Any content not described in detail in this specification is prior art known to those skilled in the art. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Terms such as "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation and are therefore not to be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise specified or limited, the terms "connected" and "connected" are to be understood broadly, meaning, for example, fixedly connected, detachably connected, or integrally connected; mechanically connected, electrically connected; directly connected, or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention on a case-by-case basis.

[0047] 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 scope of protection 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 housing (1), a liquid injection port (4) is installed on the surface of the housing (1), a suction pump (5) is installed at the back end of the housing (1), a connecting tube is connected between the suction pump (5) and the top cover of the collecting tube (3), a top plate (6) is slidably provided inside the liquid storage tube (2), a regulating tube (7) is installed at the side end of the housing (1), the regulating tube (7) is connected to the connecting tube, and an electric A push rod (8) is provided, wherein the protruding end of the electric push rod (8) is connected to the bottom end of the liquid storage tube (2); a suction regulating mechanism (9) is installed in the regulating tube (7); the suction regulating mechanism (9) is used to regulate the suction force by adjusting the amount of solvent added; a placing table (10) is installed inside the collecting tube (3); a pressure table (11) is slidably connected inside the placing table (10); an air inlet pipe (12) is installed on the surface of the housing (1); and the air inlet 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) is provided 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. 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). The top end of the fifth piston rod (142) is connected to the bottom of the top plate (6). The extrusion synchronization component (14) also includes a sixth oil tank (143) installed at the bottom of the movable platform (137). A sixth piston rod (144) is slidably connected inside the sixth oil tank (143). The top end of the sixth piston rod (144) is rotatably connected to a rotating block. 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).

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. The negative pressure liposuction device for medical cosmetic surgery according to claim 1, characterized in that: The suction adjustment mechanism (9) includes a first oil tank (901) installed at the bottom end of the bottom cavity of the housing (1), a first piston rod (902) slidingly arranged inside the first oil tank (901), a gear ring (903) rotatably connected inside the adjustment tube (7), a closing plate (904) rotatably connected inside the adjustment tube (7), a connecting rod (905) rotatably connected to the surface of the closing plate (904), the other end of the connecting rod (905) rotatably connected to the gear ring (903), a second oil tank (906) installed on the side of the housing (1), a second piston rod (907) slidably connected inside the second oil tank (906), a rack (908) installed at the end of the second piston rod (907), and a hose 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. The 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. The negative pressure liposuction device for medical cosmetic surgery according to claim 5, characterized in that: The pressure compensation assembly (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 housing (1), a fourth piston rod (136) slides inside the fourth oil tank (135), a movable platform (137) is installed at the end of the fourth piston rod (136), and the upper end of the movable platform (137) is rotatably connected to an extrusion plate (138), and a hose is 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 6, 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. The negative pressure liposuction device for medical cosmetic surgery according to claim 7, characterized in that: 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; a rounded corner is provided at the bottom of the pressing block (134), and the surface of the extrusion plate (138) is smooth.

Images