Minimally invasive negative pressure drainage device for orthopaedic surgery

Abstract

The utility model discloses an orthopaedic minimally invasive negative pressure drainage apparatus, which comprises a mounting box, a filter box is fixedly connected to the middle position of the top of an inner cavity of the mounting box, when the orthopaedic minimally invasive negative pressure drainage apparatus is used, negative pressure drainage is carried out on a wound part of a patient through a drainage cylinder, a hydrops cylinder, a negative pressure pipe, a connecting pipe and a drainage pipe, and after drainage is finished, the filter box is fixedly connected with the filter box. An electric-hydraulic push rod can be started to push a movable plate to vertically move downwards, so that waste liquid in inner cavities of a liquid accumulation cylinder and a drainage cylinder can be discharged into a filtering box and is discharged through a liquid discharging pipe, and after the waste liquid is discharged, an electric telescopic rod can be started to push a driving plate to be far away from a mounting box, and a traction rod drives a driven plate to synchronously move; and when the filter plate horizontally moves, solid foreign body tissues accumulated on the upper surface of the filter plate can be scraped off and collected into a collecting disc, so that the labor intensity of cleaning and collecting by workers in the later period is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drain devices, in particular to a minimally invasive negative pressure drain device for plastic surgery. Background Art

[0002] Plastic surgery, a branch of surgery also known as reconstructive or plastic surgery, primarily treats injuries and diseases of the skin, muscles, and bones, as well as congenital and acquired defects and deformities of tissues and organs. Treatment encompasses both repair and reconstruction. While surgical transplantation of autologous tissues is the primary approach, allogeneic or xenogeneic tissues or tissue substitutes can also be used to repair tissue defects or deformities caused by various reasons, aiming to improve or restore physiological function and appearance.

[0003] Chinese Patent Publication No. (CN220158868U) discloses a minimally invasive negative pressure drainage device for plastic surgery, comprising: a base plate, a box body installed on the top of the base plate, a fluid collection cylinder installed on the top of the box body, a drainage cylinder installed on one side of the fluid collection cylinder, and negative pressure drainage is performed on the patient's wound site through the drainage cylinder, the fluid collection cylinder, the negative pressure tube, the connecting tube and the drainage tube. The sewage outlet at the bottom of the drainage cylinder and the fluid collection cylinder can discharge the waste liquid. After the waste liquid is discharged, the first cleaning head and the telescopic rod are extended into the interior of the drainage cylinder and the fluid collection cylinder, and the interior of the drainage cylinder and the fluid collection cylinder are automatically flushed through the first cleaning head and the second cleaning head. The drainage cylinder and the fluid collection cylinder can be automatically cleaned after use, reducing manpower output and avoiding the risk of infection for cleaning personnel. The filter port and the filter plate can filter the wastewater during flushing to avoid the accumulation of larger foreign tissues in the wastewater.

[0004] However, when the liquid collection tube and the drainage tube in the above scheme are flushed with the first cleaning head and the second cleaning head, the cleaning heads are arranged vertically, so that the inner walls of the liquid collection tube and the drainage tube are not cleaned thoroughly enough, and the filtered solid foreign matter tissues are accumulated in the sewage tank, which increases the difficulty of cleaning and collection by the subsequent staff. Utility Model Content

[0005] One of the purposes of this utility model is achieved by the following technical solution:

[0006] A minimally invasive negative pressure drain for plastic surgery, comprising a mounting box, a filter box fixedly connected at the middle position of the inner cavity top of the mounting box, and a partition fixedly connected at the middle position of the inner cavity of the filter box, a liquid collection tube and a drainage tube are respectively provided at the top of the filter box near the left and right sides, and the tops of the liquid collection tube and the drainage tube both pass through the top of the mounting box and extend to the outside, a connecting pipe is provided between the liquid collection tube and the drainage tube, and the two ends of the connecting pipe are fixedly connected to the liquid collection tube and the drainage tube respectively, the liquid collection tube A drainage tube is fixedly connected to the top near the left side of the tube, and a negative pressure tube is fixedly connected to the top near the right side of the drainage tube. The bottoms of the liquid accumulation tube and the drainage tube are both fitted with filter plates, and a number of filter holes are evenly opened on the filter plates. The inner cavities of the several filter holes are slidably connected with plug rods that match them, and the bottom ends of several laterally adjacent plug rods are fixedly connected to the same connecting rod. The sides away from the bottoms of the two filter plates are fixedly installed with electro-hydraulic push rods, and the movement of the electro-hydraulic push rods The force end is fixedly connected to a movable plate, one end of each of the connecting rods is fixedly connected to an adjacent movable plate, an opening is opened on the left and right sides of the filter box near the top, and the side away from the two filter plates respectively penetrates the adjacent opening inner cavity and is fixedly connected to a passive plate, an electric telescopic rod is fixedly installed on the left and right sides of the filter box near the bottom, a first circular hole is opened on the left and right sides of the installation box near the top, the power ends of the two electric telescopic rods respectively penetrate the inner cavity of the adjacent first circular holes and are fixedly connected to the active plate, the tops of the two active plates are fixedly connected to a traction rod, the left and right sides of the installation box near the top have a through-hole, the other ends of the two traction rods respectively penetrate the inner cavity of the adjacent through-holes and are fixedly connected to the adjacent passive plates, the bottoms of the two filter plates are provided with a cleaning mechanism, a drain pipe is plugged and fixed at the bottoms of the left and right sides of the filter box, and the other end of the drain pipe penetrates the side wall of the installation box, extends to the outside of the installation box, and is provided with a pipe valve.

[0007] Furthermore, a carrying plate is fixedly connected to the bottom of the installation box, and universal wheels are hinged near the four corners of the bottom of the carrying plate.

[0008] Furthermore, the cleaning mechanism includes a hollow cylinder, and the hollow cylinder is located at the bottom of the filter plate, and a plurality of nozzles are fixedly connected to one side of the hollow cylinder at equal intervals, and the outer wall of the hollow cylinder is fixedly connected to two upper and lower fixed rods, and the other ends of the two fixed rods are fixedly connected to a cleaning brush. Two hydraulic rods arranged front and back are fixedly installed on the bottom of the inner cavity of the installation box, and second circular holes are opened near the front and rear sides of the bottom of the filter box. The power ends of the two hydraulic rods respectively pass through adjacent second circular holes, extend to the inner cavity of the filter box, and are fixedly connected to the same lifting plate. A bearing is fixedly connected to the lifting plate, and the bottom end of the hollow cylinder passes through the inner cavity of the bearing. A third circular hole is provided at the center of the bottom end of the hollow cylinder, and the inner cavity of the third circular hole is rotatably connected to a vertical pipe. A fourth circular hole matching the vertical pipe is provided at the bottom of the filter box, and the bottom end of the vertical pipe passes through the inner cavity of the fourth circular hole and is fixedly connected to a hose. A water tank and a water pump are fixedly installed at the bottom of the inner cavity of the installation box, and the other end of the hose is fixedly connected to the water pump. A connecting pipe is provided between the water tank and the water pump, and the left and right ends of the connecting pipe are respectively fixedly connected to the water tank and the water pump.

[0009] Furthermore, the bottom of the lifting plate is fixedly connected to the motor housing, and the inner cavity of the motor housing is fixedly installed with a drive motor, the bottom of the motor housing is fixedly connected to a second bearing, and the inner cavity of the second bearing is rotatably connected to a transmission shaft, the top of the transmission shaft is fixedly connected to the power output end of the drive motor, and the bottom end of the transmission shaft is fixedly connected to a transmission gear, the right side of the transmission gear is engaged with a driven gear, and the driven gear is sleeved and fixed on the outer wall of the hollow cylinder.

[0010] Furthermore, T-shaped grooves are provided on both sides of the inner cavity of the filter box, and the inner cavity of the T-shaped groove is slidably connected to a T-shaped slider. The front sides of the two T-shaped grooves are both open, and the adjacent sides of the two T-shaped sliders are fixedly connected to a collection plate, and a first handle is provided on the front side of the collection plate.

[0011] Furthermore, two sealing rings are sleeved and fixed on the outer wall of the vertical pipe near the top, and the two sealing rings are respectively fitted with the bottom of the inner and outer sides of the hollow tube.

[0012] Furthermore, the front hinge of the installation box is connected to two box doors arranged on the left and right, and a second handle is provided on the front side of the box door.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Through the linkage setting of the electric telescopic rod, active plate, traction rod, passive plate, filter plate, filter hole, plug rod, connecting rod, movable plate and electro-hydraulic push rod, negative pressure drainage is performed on the patient's wound site through the drainage tube, liquid collection tube, negative pressure tube, connecting tube and drainage tube, and when the drainage is completed, the electro-hydraulic push rod can be started to push the movable plate to move vertically downward, and the plug rod thereon can be driven to move vertically downward and open the filter hole through the connecting rod, so that the waste liquid in the inner cavity of the liquid collection tube and the drainage tube can be discharged into the filter box and discharged through the discharge pipe. When the waste liquid is discharged, the electric telescopic rod can be started to push the active plate away from the installation box, and the passive plate can be driven to move synchronously through the traction rod, thereby pulling the filter plate away from the bottom of the liquid collection tube and the drainage tube, and when the filter plate moves horizontally, the solid foreign matter tissue accumulated on its upper surface can be scraped off and collected into the collection tray, thereby reducing the labor intensity of the later staff to clean and collect;

[0015] 2. Through the linkage setting of the hydraulic rod, lifting plate, hollow cylinder, nozzle, fixed rod, cleaning brush, drive motor, transmission shaft, transmission gear and driven gear, after the filter plate is away from the liquid collection cylinder and the drainage cylinder, the hydraulic rod can be started to push the lifting plate to move vertically upward, and the hollow cylinder can be moved into the inner cavity of the liquid collection cylinder and the drainage cylinder. The water in the water tank is pumped into the hollow cylinder by the water pump, and the inner wall of the cylinder is flushed by several nozzles. The inner wall of the cylinder can be cleaned by the rotation of the cleaning brush driven by the drive motor, thereby further improving the clean and hygienic effect of cleaning the inner cavity of the liquid collection cylinder and the drainage cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of this embodiment;

[0017] Figure 2 This is a schematic diagram of the main structure of this embodiment;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the component filter plate of this embodiment;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the component cleaning brush of this embodiment;

[0020] Figure 5 for Figure 2 A magnified view of the structure at point A in the middle.

[0021] In the figure: 1. installation box; 2. filter box; 3. liquid collection cylinder; 4. drainage cylinder; 5. connecting pipe; 6. drainage pipe; 7. negative pressure pipe; 8. filter plate; 9. filter hole; 10. plug rod; 11. connecting rod; 12. electro-hydraulic push rod; 13. movable plate; 14. electric telescopic rod; 15. active plate; 16. traction rod; 17. passive plate; 18. drain pipe; 19. collecting tray; 20. partition; 21. hollow cylinder; 22. fixed rod; 23. cleaning brush; 24. nozzle; 25. lifting plate; 26. hydraulic rod; 27. vertical pipe; 28. box door; 29. ​​water tank; 30. water pump; 31. connecting pipe; 32. hose; 33. sealing ring; 34. drive motor; 35. transmission shaft; 36. transmission gear; 37. driven gear; 38. bearing plate; 39. universal wheel. DETAILED DESCRIPTION

[0022] See also Figures 1 to 5 , the utility model provides the following technical solutions:

[0023] Example 1:

[0024] A minimally invasive negative pressure drainage device for plastic surgery comprises an installation box 1, a filter box 2 is fixedly connected to the middle position of the inner cavity top of the installation box 1, and a partition 20 is fixedly connected to the middle position of the inner cavity of the filter box 2, a liquid collection tube 3 and a drainage tube 4 are respectively provided at the top of the filter box 2 near the left and right sides, and the tops of the liquid collection tube 3 and the drainage tube 4 pass through the top of the installation box 1 and extend to the outside, a connecting pipe 5 is provided between the liquid collection tube 3 and the drainage tube 4, and the two ends of the connecting pipe 5 are respectively fixedly connected to the liquid collection tube 3 and the drainage tube 4, a drainage tube 6 is fixedly connected to the top of the liquid collection tube 3 near the left side, a negative pressure tube 7 is fixedly connected to the top of the drainage tube 4 near the right side, and the bottoms of the liquid collection tube 3 and the drainage tube 4 are A filter plate 8 is fitted, and a number of filter holes 9 are evenly opened on the filter plate 8. The inner cavities of the several filter holes 9 are slidably connected with plug rods 10 that match them, and the bottom ends of several laterally adjacent plug rods 10 are fixedly connected to the same connecting rod 11. The side away from the bottom of the two filter plates 8 is fixedly installed with an electro-hydraulic push rod 12, and the power end of the electro-hydraulic push rod 12 is fixedly connected to a movable plate 13. One end of the several connecting rods 11 is fixedly connected to the adjacent movable plates 13, respectively. Openings are opened on the left and right sides of the filter box 2 near the top, and the side away from the two filter plates 8 respectively penetrates the inner cavities of the adjacent openings and is fixedly connected to a passive plate 17. The left side of the filter box 2 Electric telescopic rods 14 are fixedly installed near the bottom on both sides of the right side. First circular holes are opened near the top on both sides of the installation box 1. The power ends of the two electric telescopic rods 14 respectively pass through the inner cavity of the adjacent first circular holes and are fixedly connected to the active plates 15. The tops of the two active plates 15 are fixedly connected to the traction rods 16. Perforations are opened near the top on both sides of the installation box 1. The other ends of the two traction rods 16 respectively pass through the inner cavity of the adjacent perforations and are fixedly connected to the adjacent passive plates 17. A cleaning mechanism is provided at the bottom of the two filter plates 8. A drain pipe 18 is plugged and fixed at the bottom of the left and right sides of the filter box 2, and the other end of the drain pipe 18 passes through the side of the installation box 1. The wall extends to the outside of the installation box 1 and is provided with a pipe valve. The bottom of the installation box 1 is fixedly connected to a carrying plate 38, and the bottom of the carrying plate 38 is hinged with universal wheels 39 near the four corners to improve the convenience of carrying the drainer. T-shaped slides are provided on both sides of the inner cavity of the filter box 2, and the inner cavity of the T-shaped slide is slidably connected to a T-shaped slider. The front sides of the two T-shaped slides are both open, and the adjacent sides of the two T-shaped sliders are fixedly connected to a collection tray 19, and the front side of the collection tray 19 is provided with a first handle to facilitate the collection of filtered solid foreign matter tissue. The front side hinge of the installation box 1 is connected to two box doors 28 set on the left and right, and the front side of the box door 28 is provided with a second handle.

[0025] Working principle: When the present invention is in use, negative pressure drainage is performed on the patient's wound site through the drainage tube 4, the fluid collection tube 3, the negative pressure tube 7, the connecting tube 5 and the drainage tube 6, and when the drainage is completed, the electro-hydraulic push rod 12 can be started to push the movable plate 13 to move vertically downward, and the plug rod 10 thereon can be driven to move vertically downward through the connecting rod 11 and open the filter hole 9, so that the waste liquid in the inner cavity of the fluid collection tube 3 and the drainage tube 4 can be discharged into the filter box 2 and discharged through the drain pipe 18. After the waste liquid is discharged, the active plate 15 can be pushed away from the installation box 1 by starting the electric telescopic rod 14, and the passive plate 17 can be driven to move synchronously through the traction rod 16, thereby pulling the filter plate 8 away from the bottom of the fluid collection tube 3 and the drainage tube 4, and when the filter plate 8 moves horizontally, the solid foreign matter tissue accumulated on its upper surface can be scraped off and collected into the collection tray 19, thereby reducing the labor intensity of the later staff for cleaning and collection.

[0026] Example 2:

[0027] The cleaning mechanism includes a hollow cylinder 21, and the hollow cylinder 21 is located at the bottom of the filter plate 8. One side of the hollow cylinder 21 is fixedly connected with a number of nozzles 24 at equal distances, and the outer wall of the hollow cylinder 21 is fixedly connected with two upper and lower fixed rods 22, and the other ends of the two fixed rods 22 are fixedly connected with a cleaning brush 23. The bottom of the inner cavity of the installation box 1 is fixedly installed with two front and rear hydraulic rods 26. The bottom of the filter box 2 is provided with second circular holes near the front and rear sides. The power ends of the two hydraulic rods 26 respectively pass through the adjacent second circular holes and extend to the inner cavity of the filter box 2 and are fixedly connected with the same lifting plate 25. The lifting plate 25 is fixedly connected with a bearing, and the bottom end of the hollow cylinder 21 passes through the inner cavity of the bearing. A third circular hole is provided at the center of the bottom end of the cylinder 21, and the inner cavity of the third circular hole is rotatably connected to a vertical pipe 27. Two sealing rings 33 are fixed on the outer wall of the vertical pipe 27 near the top, and the two sealing rings 33 are respectively fitted with the bottom of the inner and outer sides of the hollow cylinder 21. A fourth circular hole matching the vertical pipe 27 is provided at the bottom of the filter box 2, and the bottom end of the vertical pipe 27 passes through the inner cavity of the fourth circular hole and is fixedly connected to a hose 32. A water tank 29 and a water pump 30 are fixedly installed at the bottom of the inner cavity of the installation box 1, and the other end of the hose 32 is fixedly connected to the water pump 30. A connecting pipe 31 is provided between the water tank 29 and the water pump 30, and the left and right ends of the connecting pipe 31 are respectively fixedly connected to the water tank 29 and the water pump 30.

[0028] The bottom of the lifting plate 25 is fixedly connected to the motor housing, and the inner cavity of the motor housing is fixedly installed with a drive motor 34. The bottom of the motor housing is fixedly connected to the second bearing, and the inner cavity of the second bearing is rotatably connected to the transmission shaft 35. The top of the transmission shaft 35 is fixedly connected to the power output end of the drive motor 34, and the bottom end of the transmission shaft 35 is fixedly connected to the transmission gear 36. The right side of the transmission gear 36 is engaged with a driven gear 37, and the driven gear 37 is sleeved and fixed on the outer wall of the hollow cylinder 21.

[0029] Working principle: When the present invention is in use, after the waste liquid in the inner cavity of the liquid collection tube 3 and the drainage tube 4 is discharged, and after the filter plate 8 is away from the liquid collection tube 3 and the drainage tube 4, the hydraulic rod 26 is started to push the lifting plate 25 to move vertically upward, and the hollow tube 21 is moved to the inner cavity of the liquid collection tube 3 and the drainage tube 4, the water in the water tank 29 is pumped into the hollow tube 21 by the water pump 30, and the inner wall of the cylinder is flushed through a plurality of nozzles 24, and the transmission shaft 35 is driven to rotate by the driving motor 34, and the rotation of the transmission shaft 35 drives the transmission gear 36 to rotate, and the rotation of the transmission gear 36 drives the driven gear 37 to rotate, and the rotation of the driven gear 37 drives the hollow tube 21 to rotate, and the rotation of the hollow tube 21 drives the cleaning brush 23 to rotate against the inner wall of the cylinder through the two fixed rods 22. The rotation of the cleaning brush 23 can clean the inner wall of the cylinder, further improving the clean and hygienic effect of cleaning the inner cavity of the liquid collection tube 3 and the drainage tube 4.

Claims

1. A minimally invasive negative pressure drainage device for plastic surgery, comprising a mounting box (1), characterized in that: A filter box (2) is fixedly connected to the middle position of the inner cavity top of the installation box (1), and a partition (20) is fixedly connected to the middle position of the inner cavity of the filter box (2). A liquid collection cylinder (3) and a drainage cylinder (4) are respectively provided on the top of the filter box (2) near the left and right sides, and the tops of the liquid collection cylinder (3) and the drainage cylinder (4) pass through the top of the installation box (1) and extend to the outside. A connecting pipe (5) is provided between the liquid collection cylinder (3) and the drainage cylinder (4), and the two ends of the connecting pipe (5) are respectively fixedly connected to the liquid collection cylinder (3) and the drainage cylinder (4). The top of the liquid collection cylinder (3) near the left side is inserted into the drain tube (4). A drainage tube (6) is fixed to the top of the drainage tube (4) near the right side, and a negative pressure tube (7) is inserted and fixed. The bottoms of the liquid accumulation tube (3) and the drainage tube (4) are both fitted with a filter plate (8), and a plurality of filter holes (9) are evenly opened on the filter plate (8). The inner cavities of the plurality of filter holes (9) are slidably connected with plug rods (10) that match them, and the bottom ends of the plurality of transversely adjacent plug rods (10) are fixedly connected with the same connecting rod (11). The sides away from the bottoms of the two filter plates (8) are both fixedly installed with an electro-hydraulic push rod (12), and the electro-hydraulic push rod (12) is fixedly installed with the bottom of the two filter plates (8). The power end is fixedly connected to a movable plate (13), one end of a plurality of the connecting rods (11) is fixedly connected to the adjacent movable plates (13), the left and right sides of the filter box (2) are both provided with openings near the top, and the two sides of the filter plates (8) that are away from each other respectively penetrate the inner cavity of the adjacent openings and are fixedly connected to the passive plates (17), the left and right sides of the filter box (2) are both fixedly installed with electric telescopic rods (14) near the bottom, the left and right sides of the installation box (1) are both provided with first circular holes near the top, the power ends of the two electric telescopic rods (14) respectively penetrate the inner cavity of the adjacent first circular holes, and Both are fixedly connected with an active plate (15), and the tops of the two active plates (15) are fixedly connected with a traction rod (16). The left and right sides of the installation box (1) are provided with perforations near the top, and the other ends of the two traction rods (16) respectively penetrate the inner cavities of adjacent perforations and are respectively fixedly connected with adjacent passive plates (17). The bottoms of the two filter plates (8) are provided with a cleaning mechanism. The bottoms of the left and right sides of the filter box (2) are both plugged and fixed with a drainage pipe (18), and the other end of the drainage pipe (18) penetrates the side wall of the installation box (1), extends to the outside of the installation box (1), and is provided with a pipe valve.

2. The minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: The bottom of the installation box (1) is fixedly connected to a bearing plate (38), and the bottom of the bearing plate (38) is hinged with universal wheels (39) near the four corners.

3. The minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: The cleaning mechanism comprises a hollow cylinder (21), and the hollow cylinder (21) is located at the bottom of the filter plate (8), a plurality of nozzles (24) are fixedly connected to one side of the hollow cylinder (21) at equal intervals, and the outer wall of the hollow cylinder (21) is fixedly connected to two upper and lower fixed rods (22), and the other ends of the two fixed rods (22) are fixedly connected to a cleaning brush (23), and two hydraulic rods (26) arranged front and back are fixedly installed at the bottom of the inner cavity of the installation box (1), and second circular holes are opened at the bottom of the filter box (2) near the front and rear sides, and the power ends of the two hydraulic rods (26) respectively pass through the adjacent second circular holes and extend to the inner cavity of the filter box (2), and are fixedly connected to the same lifting plate (25), and the lifting plate (25) is fixed A bearing is connected, and the bottom end of the hollow cylinder (21) passes through the inner cavity of the bearing. A third circular hole is opened at the center of the bottom end of the hollow cylinder (21), and the inner cavity of the third circular hole is rotatably connected to a vertical pipe (27). A fourth circular hole matching the vertical pipe (27) is opened at the bottom of the filter box (2), and the bottom end of the vertical pipe (27) passes through the inner cavity of the fourth circular hole and is fixedly connected to a hose (32). A water tank (29) and a water pump (30) are fixedly installed at the bottom of the inner cavity of the installation box (1), and the other end of the hose (32) is fixedly connected to the water pump (30). A connecting pipe (31) is provided between the water tank (29) and the water pump (30), and the left and right ends of the connecting pipe (31) are respectively fixedly connected to the water tank (29) and the water pump (30).

4. The minimally invasive negative pressure drainage device for plastic surgery according to claim 3, characterized in that: The bottom of the lifting plate (25) is fixedly connected to a motor housing, and a driving motor (34) is fixedly installed in the inner cavity of the motor housing. The bottom of the motor housing is fixedly connected to a second bearing, and the inner cavity of the second bearing is rotatably connected to a transmission shaft (35). The top end of the transmission shaft (35) is fixedly connected to the power output end of the driving motor (34), and the bottom end of the transmission shaft (35) is fixedly connected to a transmission gear (36). The right side of the transmission gear (36) is meshed with a driven gear (37), and the driven gear (37) is sleeved and fixed on the outer wall of the hollow cylinder (21).

5. The minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: T-shaped chutes are provided on both left and right sides of the inner cavity of the filter box (2), and the inner cavity of the T-shaped chutes is slidably connected to a T-shaped slider. The front sides of the two T-shaped chutes are both open, and the adjacent sides of the two T-shaped sliders are fixedly connected to a collection tray (19), and the front side of the collection tray (19) is provided with a first handle.

6. The minimally invasive negative pressure drainage device for plastic surgery according to claim 3, characterized in that: Two sealing rings (33) are sleeved and fixed on the outer wall of the vertical tube (27) near the top, and the two sealing rings (33) are respectively fitted with the bottoms of the inner and outer sides of the hollow cylinder (21).

7. The minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: The front hinge of the installation box (1) is connected to two box doors (28) arranged on the left and right, and the front sides of the box doors (28) are provided with a second handle.

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