Minimally invasive negative-pressure drainage apparatus for orthopaedic surgery and use method of minimally invasive negative-pressure drainage apparatus

Abstract

The invention discloses an orthopaedic minimally invasive negative pressure drainage apparatus and a use method thereof, and belongs to the related technical field of medical equipment.The orthopaedic minimally invasive negative pressure drainage apparatus comprises a negative pressure machine, a first hose and a negative pressure cover, a first tank body and a second tank body are installed on the inner side of the negative pressure machine, and the first tank body is located on one side of the second tank body; the first tank body and the second tank body are connected in series, the first hose is arranged between the negative pressure machine and the negative pressure cover, one end of the first hose is connected with the second tank body in a penetrating mode, the other end of the first hose is connected with the negative pressure cover in a penetrating mode, the bottom of the negative pressure cover is covered with a sponge block, and the upper portion of the negative pressure cover is covered with a fixing sleeve. Hose connecting seats matched with the first hose for use are mounted at the upper ends of the first tank body and the second tank body; sealing joints are mounted on the inner sides of the hose connecting seats; the medical nursing pad is provided with an auxiliary fixing structure, the phenomenon that the medical nursing pad falls off from the skin of a patient is avoided, the airtight stability is improved, and daily disinfection and cleaning of wound surfaces are taken into consideration.

Description

Technical Field

[0001] The present invention belongs to the field of medical equipment-related technologies, and more specifically, is a minimally invasive negative pressure drainage device for plastic surgery and a method of using the same. Background Art

[0002] A medical negative pressure drain is a device that helps patients drain body fluids, such as blood, body fluids, pus and other secretions, through negative pressure to reduce the risk of infection and promote wound healing. The medical negative pressure drain uses the principle of vacuum to generate negative pressure in the human body's cavity, thereby guiding the liquid in the cavity. When the drainage tube is connected to the negative pressure terminal, negative air pressure will be generated in the drainage container. This negative pressure will guide the sputum, secretions or dirty blood through the drainage tube into the collection bottle.

[0003] The patent document with the announcement number CN109940519B records a negative pressure drain, including a negative pressure ball, the negative pressure ball including a liquid inlet end and a liquid discharge end, the liquid inlet end of the negative pressure ball is provided with a drainage tube, the liquid discharge end of the negative pressure ball is provided with a liquid discharge tube, the drainage tube is provided with a liquid inlet check valve for realizing one-way communication from the drainage tube to the negative pressure ball, and the liquid discharge tube is provided with a liquid discharge check valve for realizing one-way communication from the negative pressure ball to the liquid discharge tube. It can be seen from the above scheme that the negative pressure ball generates continuous negative pressure suction, which can drain in a timely, efficient and continuous manner. The liquid inlet check valve is provided at the drainage tube to realize one-way communication from the drainage tube to the negative pressure ball, prevent the drainage liquid from flowing back, and effectively prevent the drainage liquid from flowing back and infecting, the liquid discharge check valve is provided on the liquid discharge tube, and the liquid discharge check valve is used to replace the manual switch. When draining or discharging, there is no need to manually control the opening or closing, which simplifies the operation.

[0004] The above-mentioned negative pressure drainage device has certain shortcomings when in use. The air inlet end of the negative pressure drainage device is adhered to the patient's skin surface by means of a sticky film material, which is affected by changes in the patient's body position and the position of the wound, so that the air tightness of the contact surface with the patient's skin is affected. At the same time, during the negative pressure drainage process, it cannot meet the daily disinfection requirements of the wound position. Secondly, the hose connector is easily pulled and detached when the patient moves, causing the exudate to spill. It has no auxiliary fixing structure, which reduces its stability during negative pressure drainage. Summary of the invention

[0005] The purpose of the present invention is to provide a minimally invasive negative pressure drainage device for plastic surgery and a method of using the same, which can solve the existing problems.

[0006] The problem to be solved by the present invention is:

[0007] 1. The air inlet end of the negative pressure drainage device is adhered to the patient's skin surface with a sticky film material. It is affected by the changes in the patient's body position and the location of the wound, which affects the air tightness of the contact surface with the patient's skin. At the same time, during the negative pressure drainage process, it cannot meet the daily disinfection of the wound location. Secondly, the hose connector is easily pulled off when the patient moves, causing the exudate to spill. It has no auxiliary fixing structure, which reduces its stability during negative pressure drainage.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A minimally invasive negative pressure drainage device for plastic surgery comprises a negative pressure machine, a first hose and a negative pressure cover, wherein a first tank body and a second tank body are installed on the inner side of the negative pressure machine, the first tank body is located on one side of the second tank body, and the first tank body and the second tank body are connected in series with each other, the first hose is arranged between the negative pressure machine and the negative pressure cover, one end of the first hose is through-connected with the second tank body, and the other end of the first hose is through-connected with the negative pressure cover, the bottom of the negative pressure cover is covered with a sponge block, the upper part of the negative pressure cover is covered with a fixed sleeve, the upper ends of the first tank body and the second tank body are both equipped with hose connectors used in conjunction with the first hose, a sealing joint is installed inside the hose connector, and a conical sleeve is movably installed on the inner side of the sealing joint, and the bottom of the negative pressure cover is covered with a sticky film.

[0010] As a further technical solution of the present invention, a notch for cooperating with a negative pressure mask is provided in the middle of the fixing sleeve, fixing straps are installed on both sides of the fixing sleeve, and two sets of injection joints are provided at one end of the negative pressure mask. The user first cleans and disinfects the minimally invasive position of the patient, covers the minimally invasive position with a sponge block, covers a layer of negative pressure mask on the upper part of the sponge block, and sticks the negative pressure mask on the user's skin surface at the same time, so that the negative pressure mask forms a sealing structure between the sponge block and the skin, covers the fixing sleeve on the upper part of the negative pressure mask, allows the sponge block to pass through the rectangular groove of the fixing sleeve, and fixes the fixing sleeve by the fixing strap. The installed fixing sleeve plays an auxiliary fixing role in the use of the sponge block and the negative pressure mask, and can prevent the suction end of the negative pressure drain from falling off when the user is active.

[0011] As a further technical solution of the present invention, a limiting clamping plate for fixing the first tank body and the second tank body is installed at one end of the negative pressure machine, and the first tank body and the negative pressure machine, as well as the second tank body and the negative pressure machine, are connected through a three-way joint. The arrangement of the first tank body and the second tank body makes the negative pressure drainer have a double-tank liquid storage structure. During installation, the negative pressure sockets of the first tank body and the second tank body are connected to the two air inlet ends of the three-way joint. The two air inlet ends of the three-way joint can be switched through a regulating valve. When the first tank body and the second tank body are connected in series, there is no need to perform a switching operation. The second tank body can be connected to the first hose, and the negative pressure machine can be used to extract negative pressure from the first tank body. In the series state, a negative pressure state is generated in the second tank body, and wound exudate is sucked into the interior of the second tank body through the first hose. When the second tank body is full, excess exudate will be drawn from the second tank body into the interior of the first tank body through the hose. When the tank body is replaced, the negative pressure switch can be performed through the regulating valve.

[0012] As a further technical solution of the present invention, two groups of docking strips are provided on the inner side of the negative pressure machine, and the bottoms of the first tank body and the second tank body are provided with strip slots used to cooperate with the docking strips, and the ends of the negative pressure machine are provided with docking slots used to cooperate with the limiting card plates. When installing the first tank body and the second tank body, a push-in method is adopted, and the first tank body and the second tank body are pushed in from one end of the negative pressure machine so that the docking strip and the strip slot are docked with each other, so that the bottoms of the first tank body and the second tank body are fixed, and at the same time, the conical air nozzle and the negative pressure socket are docked with each other, and the limiting card plate is inserted into the docking slot to reinforce the installed first tank body and the second tank body.

[0013] As a further technical solution of the present invention, the air inlet end of the three-way joint is provided with a conical air nozzle, and the middle part of the three-way joint is provided with a regulating valve. The setting of the conical air nozzle can reduce the resistance during docking between the three-way joint and the negative pressure socket, and the air inlet end of the three-way joint can be switched by rotating the regulating valve.

[0014] As a further technical solution of the present invention, a first squeeze bottle and a second squeeze bottle are arranged above the negative pressure hood, and the first squeeze bottle and the liquid injection joint as well as the second squeeze bottle and the liquid injection joint are respectively connected and fixed by two second hoses. By utilizing the arrangement of the first squeeze bottle and the second squeeze bottle and cooperating with the arrangement of the liquid injection joint, the interior of the negative pressure hood has a flushing structure, and the cleaning liquid or the medicine liquid inside is squeezed out by squeezing the first squeeze bottle and the second squeeze bottle, and the liquid is drawn into the interior of the first tank body or the second tank body in cooperation with the use of the negative pressure machine. During the liquid flow process, the flushing operation of the slightly wounded wound is completed. The negative pressure hood is made of a thin film material, and in the negative pressure adsorption state, the negative pressure hood will shrink inward, causing the sponge block to shrink and squeeze.

[0015] As a further technical solution of the present invention, a spray pipe is fixedly installed inside the first tank body and the second tank body, and a water injection joint is provided at the upper end of the spray pipe. A spring valve is provided at the bottom of the first tank body and the second tank body. A water pipe can be connected through the water injection joint to introduce the disinfectant into the spray pipe, and the interior of the first tank body and the second tank body is flushed through the spray pipe, and the spring valve is opened to drain the interior of the first tank body and the second tank body.

[0016] As a further technical solution of the present invention, a lifting sleeve is movably installed on the upper end of the sealing joint, and the lifting sleeve and the tapered sleeve are butt-jointed and fixed, and a plurality of groups of V-shaped grooves are distributed in an annular shape on the surface of the tapered sleeve. By pressing the lifting sleeve, the lifting sleeve drives the tapered sleeve to move downward, so that the tapered sleeve fixes the installed first hose.

[0017] As a further technical solution of the present invention, a butt joint is fixedly installed at the middle position of the inner side of the sealing joint, and a limiting ring is fixedly installed at the lower part of the tapered sleeve on the inner side of the sealing joint. During operation, the user inserts one end of the first hose into the interior of the sealing joint so that the first hose and the butt joint are butted against each other, and the lifting sleeve is pressed down to drive the tapered sleeve downward by the lifting sleeve so that the lower end of the tapered sleeve is inserted into the inner side of the limiting ring. The limiting ring is used in conjunction with the V-shaped grooves distributed in an annular shape on the surface of the tapered sleeve to squeeze the end of the tapered sleeve inward, and the first hose and the butt joint are squeezed by the tapered sleeve to complete the reinforcement operation of the first hose.

[0018] A method for using a minimally invasive negative pressure drainage device for plastic surgery, comprising the following steps:

[0019] Step 1: clean the minimally invasive affected area of ​​the patient, place the sponge block at the minimally invasive position, clamp the negative pressure mask on the sponge block, and use the sticky film to seal and fix the negative pressure mask and the skin;

[0020] Step 2: insert the two ends of the first hose into the negative pressure cover and the second tank respectively, start the negative pressure machine, and generate negative pressure attraction inside the negative pressure cover through the first hose, so that the negative pressure cover and the sponge block shrink and deform to absorb the exudate from the wound.

[0021] Beneficial effects of the present invention:

[0022] 1. By providing a negative pressure cover and a fixing sleeve, the minimally invasive negative pressure drainage device for plastic surgery has an auxiliary fixing structure when in use, thereby preventing it from falling off from the patient's skin, improving its airtight stability, and allowing it to be used for daily disinfection and cleaning of the wound surface;

[0023] During operation, the user first cleans and disinfects the minimally invasive position of the patient, then covers the minimally invasive position with a sponge block, covers the upper part of the sponge block with a layer of negative pressure mask, and sticks the negative pressure mask to the user's skin surface, so that the negative pressure mask forms a sealing structure between the sponge block and the skin, covers the upper part of the negative pressure mask with a fixed sleeve, so that the sponge block passes through the rectangular groove of the fixed sleeve, and fixes the fixed sleeve with a fixed strap. The installed fixed sleeve plays an auxiliary fixing role in the use of the sponge block and the negative pressure mask. When the user is in an active state, the suction end of the negative pressure drainer can be prevented from falling off. With the use of the negative pressure machine, the exudate is drawn into the interior of the first tank body or the second tank body. The negative pressure mask is made of a thin film material. In the negative pressure adsorption state, the negative pressure mask will shrink inward, causing the sponge block to shrink and squeeze, so that the negative pressure adsorption state is maintained in the negative pressure mask;

[0024] Secondly, by utilizing the arrangement of the first squeeze bottle and the second squeeze bottle in coordination with the arrangement of the liquid injection joint, the interior of the negative pressure hood has a flushing structure. By squeezing the first squeeze bottle and the second squeeze bottle, the cleaning liquid or the liquid medicine inside is squeezed out. By using the negative pressure machine, the liquid is drawn into the interior of the first tank body or the second tank body. During the liquid flow process, the flushing operation of the slightly wounded wound is completed.

[0025] 2. By providing a sealing joint, when the minimally invasive negative pressure drainage device for plastic surgery is used, it has a hose auxiliary fixing structure to prevent the hose from falling off during the pulling process of the patient and prevent leakage of exudate;

[0026] When in use, the user inserts one end of the first hose into the interior of the sealing joint so that the first hose and the butt joint are butted against each other, and by pressing down the lifting sleeve, the lifting sleeve is used to drive the tapered sleeve downward so that the lower end of the tapered sleeve is inserted into the inner side of the limiting ring, and the limiting ring is used to cooperate with the V-shaped grooves distributed in an annular manner on the surface of the tapered sleeve so that the end of the tapered sleeve is squeezed inward during the pressing process, and the first hose and the butt joint are squeezed by the tapered sleeve so that the first hose is tightly attached to the surface of the butt joint, thereby completing the reinforcement operation of the first hose. When performing the tank body replacement operation, the lifting sleeve is pulled out so that the lifting sleeve drives the tapered sleeve to move upward, and the tapered sleeve is moved out of the limiting ring, thereby making the end of the tapered sleeve come out, so that the first hose and the butt joint are easily separated.

[0027] 3. By providing the first tank body and the second tank body, when the minimally invasive negative pressure drainage device for plastic surgery is used, it has a double tank body liquid storage structure, which increases its liquid storage capacity and makes the flushing operation more convenient;

[0028] During operation, the negative pressure drainage device is provided with a double-tank liquid storage structure by utilizing the arrangement of the first tank body and the second tank body. During installation, the negative pressure sockets of the first tank body and the second tank body are connected to the two air inlet ends of the three-way joint, and the two air inlet ends of the three-way joint can be switched through the regulating valve. When the first tank body and the second tank body are connected in series, there is no need to perform a switching operation. The second tank body can be connected to the first hose, and the negative pressure machine can be used to perform negative pressure extraction on the first tank body. In the series state, a negative pressure state is generated in the second tank body, and wound exudate is sucked into the interior of the second tank body through the first hose. When the second tank body is full, excess exudate will be drawn into the interior of the first tank body from the second tank body through the hose. When performing a tank replacement operation, the negative pressure can be switched through the regulating valve. Secondly, a water pipe can be connected through the water injection joint to introduce disinfectant into the spray pipe, and the interior of the first tank body and the second tank body is flushed through the spray pipe, and the spring valve is opened to drain the interior of the first tank body and the second tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the overall structure of a minimally invasive negative pressure drainage device for plastic surgery of the present invention;

[0031] Figure 2 This is an overall structural diagram of a negative pressure machine in a minimally invasive negative pressure drainage device for plastic surgery of the present invention;

[0032] Figure 3 This is an overall structural diagram of a negative pressure cover in a minimally invasive negative pressure drainage device for plastic surgery of the present invention;

[0033] Figure 4 This is an overall structural diagram of a three-way joint in a minimally invasive negative pressure drainage device for plastic surgery of the present invention;

[0034] Figure 5 It is an overall structural diagram of a minimally invasive negative pressure drainage device for plastic surgery in a negative pressure mask flushing state according to the present invention;

[0035] Figure 6 This is a diagram of the internal structure of the first tank body in a minimally invasive negative pressure drainage device for plastic surgery of the present invention;

[0036] Figure 7 This is a diagram of the internal structure of a sealing joint in a minimally invasive negative pressure drainage device for plastic surgery of the present invention;

[0037] Figure 8 It is a state change diagram of a negative pressure machine in a minimally invasive negative pressure drainage device for plastic surgery of the present invention when it is in use.

[0038] In the figure: 1. negative pressure machine; 2. first tank body; 3. second tank body; 4. limit card plate; 5. negative pressure cover; 6. fixing sleeve; 7. first squeeze bottle; 8. first hose; 9. regulating valve; 10. docking slot; 11. docking card strip; 12. conical air nozzle; 13. sponge block; 14. injection joint; 15. fixing strap; 16. three-way joint; 17. conical sleeve; 18. second hose; 19. second squeeze bottle; 20. spring valve; 21. strip card slot; 22. spray pipe; 23. water injection joint; 24. hose connector; 25. negative pressure connector; 26. sealing joint; 27. butt tube; 28. limit ring; 29. ​​lifting sleeve. DETAILED DESCRIPTION

[0039] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0040] like Figure 1-8 As shown, a minimally invasive negative pressure drainage device for plastic surgery includes a negative pressure machine 1, a first hose 8 and a negative pressure cover 5. A first tank body 2 and a second tank body 3 are installed on the inner side of the negative pressure machine 1. The first tank body 2 is located on one side of the second tank body 3, and the first tank body 2 and the second tank body 3 are connected in series with each other. The first hose 8 is arranged between the negative pressure machine 1 and the negative pressure cover 5. One end of the first hose 8 is connected with the second tank body 3, and the other end of the first hose 8 is connected with the negative pressure cover 5. The bottom of the negative pressure cover 5 is covered with a sponge block 13, and the upper part of the negative pressure cover 5 is covered with a fixed sleeve 6. The upper ends of the first tank body 2 and the second tank body 3 are both installed with a hose connector 24 used in conjunction with the first hose 8, and a sealing joint 26 is installed inside the hose connector 24, and a conical sleeve 17 is movably installed on the inner side of the sealing joint 26. The bottom of the negative pressure cover 5 is covered with an adhesive film.

[0041] To solve the problem of negative pressure drainage device falling off during use, Figure 3 As shown, a notch for cooperating with the negative pressure hood 5 is provided in the middle of the fixing sleeve 6, fixing straps 15 are installed on both sides of the fixing sleeve 6, and two sets of injection joints 14 are provided at one end of the negative pressure hood 5. The user first cleans and disinfects the minimally invasive position of the patient, and then covers the minimally invasive position with a sponge block 13, covers a layer of negative pressure hood 5 on the upper part of the sponge block 13, and sticks the negative pressure hood 5 on the user's skin surface at the same time, so that the negative pressure hood 5 forms a sealing structure between the sponge block 13 and the skin, covers the fixing sleeve 6 on the upper part of the negative pressure hood 5, and allows the sponge block 13 to pass through the rectangular groove of the fixing sleeve 6, and fixes the fixing sleeve 6 by the fixing straps 15. The installed fixing sleeve 6 plays an auxiliary fixing role in the use of the sponge block 13 and the negative pressure hood 5, and can prevent the suction end of the negative pressure drain from falling off when the user is active.

[0042] A limiting card plate 4 for fixing the first tank body 2 and the second tank body 3 is installed at one end of the negative pressure machine 1. The first tank body 2 and the negative pressure machine 1 as well as the second tank body 3 and the negative pressure machine 1 are connected through a three-way joint 16. The arrangement of the first tank body 2 and the second tank body 3 makes the negative pressure drainer have a double tank body liquid outlet structure. When installing, the negative pressure sockets 25 of the first tank body 2 and the second tank body 3 are connected to the two air inlet ends of the three-way joint 16. The two air inlet ends of the three-way joint 16 can be switched through the regulating valve 9. When the first tank body 2 and the second tank body 3 are connected, the negative pressure sockets 25 of the first tank body 2 and the second tank body 3 are connected to the two air inlet ends of the three-way joint 16. When a tank body 2 and a second tank body 3 are connected in series, there is no need to perform a switching operation. The second tank body 3 can be docked with the first hose 8, and the negative pressure machine 1 can be used to extract negative pressure from the first tank body 2. In the series state, a negative pressure state is generated in the second tank body 3, and wound exudate is sucked into the interior of the second tank body 3 through the first hose 8. When the second tank body 3 is full, excess exudate will be drawn from the second tank body 3 into the interior of the first tank body 2 through the hose. When performing a tank replacement operation, negative pressure switching can be performed through the regulating valve 9.

[0043] like Figure 2 As shown, two groups of docking strips 11 are provided on the inner side of the negative pressure machine 1, and the bottoms of the first tank body 2 and the second tank body 3 are provided with strip grooves 21 used in conjunction with the docking strips 11, and the ends of the negative pressure machine 1 are provided with docking slots 10 used in conjunction with the limiting card plate 4. When installing, the first tank body 2 and the second tank body 3 are pushed in from one end of the negative pressure machine 1, so that the docking strip 11 and the strip groove 21 are docked with each other, so that the bottoms of the first tank body 2 and the second tank body 3 are fixed, and at the same time, the conical air nozzle 12 and the negative pressure socket 25 are docked with each other, and the limiting card plate 4 is inserted into the docking slot 10, and the installed first tank body 2 and the second tank body 3 are reinforced.

[0044] The air inlet end of the three-way joint 16 is provided with a conical air nozzle 12, and the middle part of the three-way joint 16 is provided with a regulating valve 9. The setting of the conical air nozzle 12 can reduce the resistance when the three-way joint 16 and the negative pressure socket 25 are connected. The air inlet end of the three-way joint 16 can be switched by rotating the regulating valve 9.

[0045] To solve the single functional problem of negative pressure drainage device, such as Figure 5As shown, a first squeeze bottle 7 and a second squeeze bottle 19 are arranged above the negative pressure hood 5, and the first squeeze bottle 7 and the injection joint 14 as well as the second squeeze bottle 19 and the injection joint 14 are respectively connected and fixed by two second hoses 18. By utilizing the arrangement of the first squeeze bottle 7 and the second squeeze bottle 19 and cooperating with the arrangement of the injection joint 14, the interior of the negative pressure hood 5 has a flushing structure, and the cleaning liquid or the liquid medicine therein is squeezed out by squeezing the first squeeze bottle 7 and the second squeeze bottle 19, and the use of the negative pressure machine 1 allows the liquid to be drawn into the interior of the first tank body 2 or the second tank body 3, and during the flow of the liquid, the flushing operation of the slightly wounded wound is completed, and the negative pressure hood 5 is made of a thin film material, and in the negative pressure adsorption state, the negative pressure hood 5 will shrink inward, causing the sponge block 13 to shrink and squeeze.

[0046] like Figure 6 As shown, a spray pipe 22 is fixedly installed inside the first tank body 2 and the second tank body 3, and a water injection joint 23 is provided at the upper end of the spray pipe 22. A spring valve 20 is provided at the bottom of the first tank body 2 and the second tank body 3. A water pipe can be connected through the water injection joint 23 to introduce disinfectant into the spray pipe 22. The interior of the first tank body 2 and the second tank body 3 is flushed through the spray pipe 22, and the spring valve 20 is opened to drain the interior of the first tank body 2 and the second tank body 3.

[0047] A lifting sleeve 29 is movably installed on the upper end of the sealing joint 26, and the lifting sleeve 29 and the tapered sleeve 17 are docked and fixed. The surface of the tapered sleeve 17 has a plurality of groups of V-shaped grooves distributed in an annular shape. By pressing the lifting sleeve 29, the lifting sleeve 29 drives the tapered sleeve 17 to move downward, so that the tapered sleeve 17 plays a fixing role on the installed first hose 8.

[0048] A butt joint 27 is fixedly installed at the middle position of the inner side of the sealing joint 26, and a limit ring 28 is fixedly installed at the lower part of the tapered sleeve 17 on the inner side of the sealing joint 26. During operation, the user inserts one end of the first hose 8 into the interior of the sealing joint 26, so that the first hose 8 and the butt joint 27 are butted against each other, and the lifting sleeve 29 is pressed down to drive the tapered sleeve 17 downward by the lifting sleeve 29, so that the lower end of the tapered sleeve 17 is inserted into the inner side of the limit ring 28, and the limit ring 28 is used to cooperate with the V-shaped grooves distributed in an annular shape on the surface of the tapered sleeve 17, so that the end of the tapered sleeve 17 is squeezed inward, and the first hose 8 and the butt joint 27 are squeezed by the tapered sleeve 17 to complete the reinforcement operation of the first hose 8.

[0049] A method for using a minimally invasive negative pressure drainage device for plastic surgery, comprising the following steps:

[0050] Step 1: clean the minimally invasive affected area of ​​the patient, place the sponge block 13 at the minimally invasive position, and clamp the negative pressure cover 5 on the sponge block 13, and use an adhesive film to seal and fix the negative pressure cover 5 and the skin;

[0051] Step 2: insert the two ends of the first hose 8 into the negative pressure cover 5 and the second tank 3 respectively, start the negative pressure machine 1, and generate negative pressure attraction inside the negative pressure cover 5 through the first hose 8, so that the negative pressure cover 5 and the sponge block 13 shrink and deform to absorb the exudate from the wound;

[0052] When in use, the air inlet end of the negative pressure drainage device is adhered to the patient's skin surface with a sticky film material, which is affected by the patient's body position changes and the wound position, so that it affects the air tightness of the contact surface with the patient's skin. At the same time, during the negative pressure drainage process, it cannot meet the daily disinfection of the wound position. Secondly, the hose connector position is easy to be pulled off when the patient moves, causing the exudate to spill. It has no auxiliary fixing structure, which reduces its stability during negative pressure drainage;

[0053] To this end, by providing the negative pressure cover 5 and the fixing sleeve 6, when the minimally invasive negative pressure drainage device for plastic surgery is used, it has an auxiliary fixing structure to prevent it from falling off from the patient's skin, improve its airtight stability, and at the same time allow it to be used for daily disinfection and cleaning of the wound surface;

[0054] During operation, the user first cleans and disinfects the minimally invasive position of the patient, then covers the minimally invasive position with the sponge block 13, covers the upper part of the sponge block 13 with a layer of negative pressure cover 5, and sticks the negative pressure cover 5 to the user's skin surface, so that the negative pressure cover 5 forms a sealing structure between the sponge block 13 and the skin, covers the upper part of the negative pressure cover 5 with the fixing sleeve 6, so that the sponge block 13 passes through the rectangular groove of the fixing sleeve 6, and fixes the fixing sleeve 6 with the fixing strap 15. The fixed sleeve 6 after installation plays an auxiliary fixing role in the use of the sponge block 13 and the negative pressure cover 5. When the user is in an active state, the suction end of the negative pressure drainer can be prevented from falling off. With the use of the negative pressure machine 1, the exudate can be drawn into the first tank body 2 or the second tank body 3. The negative pressure cover 5 is made of a thin film material. In the negative pressure adsorption state, the negative pressure cover 5 will shrink inward, causing the sponge block 13 to shrink and squeeze, so that the negative pressure adsorption state is maintained in the negative pressure cover 5.

[0055] Secondly, by using the first squeeze bottle 7 and the second squeeze bottle 19, in conjunction with the liquid injection joint 14, the interior of the negative pressure cover 5 has a flushing structure. By squeezing the first squeeze bottle 7 and the second squeeze bottle 19, the cleaning liquid or liquid medicine inside is squeezed out. In conjunction with the use of the negative pressure machine 1, the liquid is pumped into the interior of the first tank body 2 or the second tank body 3. During the liquid flow process, the flushing operation of the micro-wound is completed.

[0056] By providing the sealing joint 26, when the minimally invasive negative pressure drainage device for plastic surgery is used, it has a hose auxiliary fixing structure to prevent the hose from falling off during the pulling process of the patient, thereby preventing leakage of exudate;

[0057] When in use, the user inserts one end of the first hose 8 into the interior of the sealing joint 26, so that the first hose 8 and the butt joint 27 are butted against each other, and by pressing down the lifting sleeve 29, the lifting sleeve 29 is used to drive the tapered sleeve 17 to move downward, so that the lower end of the tapered sleeve 17 is inserted into the inner side of the limiting ring 28, and the limiting ring 28 is used to cooperate with the V-shaped notches distributed in an annular manner on the surface of the tapered sleeve 17, so that the end of the tapered sleeve 17 is squeezed inward during the pressing process, and the first hose 8 and the butt joint 27 are squeezed by the tapered sleeve 17, so that the first hose 8 is closely attached to the surface of the butt joint 27, and the reinforcement operation of the first hose 8 is completed. When performing the tank body replacement operation, the lifting sleeve 29 is pulled out, so that the lifting sleeve 29 drives the tapered sleeve 17 to move upward, and the tapered sleeve 17 is moved out of the limiting ring 28, so that the end of the tapered sleeve 17 is released, so that the first hose 8 and the butt joint 27 are easily separated;

[0058] By providing the first tank body 2 and the second tank body 3, when the minimally invasive negative pressure drainage device for plastic surgery is used, it has a double tank body liquid storage structure, which increases its liquid storage capacity and makes the flushing operation more convenient;

[0059] During operation, the negative pressure drainage device has a double tank liquid storage structure by utilizing the arrangement of the first tank body 2 and the second tank body 3. During installation, the negative pressure connection seat 25 of the first tank body 2 and the second tank body 3 are connected to the two air inlet ends of the three-way joint 16. The two air inlet ends of the three-way joint 16 can be switched through the regulating valve 9, and can be selected and used according to actual needs. For a small amount of demand, only one of the tank bodies can be used, and for a large amount, two can be used in series. When the first tank body 2 and the second tank body 3 are connected in series, there is no need to perform a switching operation, and the second tank body 3 can be connected to the first hose 8, and the negative pressure machine 1 can be used to connect the first tank The body 2 is subjected to negative pressure extraction. In the series state, a negative pressure state is generated in the second tank body 3, and the wound exudate is sucked into the interior of the second tank body 3 through the first hose 8. When the second tank body 3 is full, the excess exudate will be drawn from the second tank body 3 into the interior of the first tank body 2 through the hose. When the tank body is replaced, the negative pressure can be switched through the regulating valve 9. Secondly, the water pipe can be connected through the water injection joint 23 to introduce the disinfectant into the spray pipe 22. The interior of the first tank body 2 and the second tank body 3 are flushed through the spray pipe 22, and the spring valve 20 is opened to drain the interior of the first tank body 2 and the second tank body 3.

[0060] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A minimally invasive negative pressure drainage device for plastic surgery, characterized in that: The invention comprises a negative pressure machine (1), a first hose (8) and a negative pressure cover (5), wherein a first tank body (2) and a second tank body (3) are installed inside the negative pressure machine (1), the first tank body (2) is located on one side of the second tank body (3), and the first tank body (2) and the second tank body (3) are connected in series with each other, the first hose (8) is arranged between the negative pressure machine (1) and the negative pressure cover (5), one end of the first hose (8) is connected to the second tank body (3), and the other end of the first hose (8) is connected to the negative pressure cover (5) are connected through each other, the bottom of the negative pressure hood (5) is covered with a sponge block (13), the upper part of the negative pressure hood (5) is covered with a fixing sleeve (6), the upper ends of the first tank body (2) and the second tank body (3) are both equipped with a hose connector (24) used in conjunction with the first hose (8), a sealing joint (26) is installed inside the hose connector (24), and a conical sleeve (17) is movably installed on the inner side of the sealing joint (26), and the bottom of the negative pressure hood (5) is covered with an adhesive film.

2. A minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: A notch for use with the negative pressure cover (5) is provided in the middle of the fixing sleeve (6), fixing straps (15) are installed on both sides of the fixing sleeve (6), and two groups of liquid injection joints (14) are provided at one end of the negative pressure cover (5).

3. A minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: A limiting clamp (4) for fixing the first tank body (2) and the second tank body (3) is installed at one end of the negative pressure machine (1); the first tank body (2) and the negative pressure machine (1) as well as the second tank body (3) and the negative pressure machine (1) are connected via a three-way joint (16).

4. A minimally invasive negative pressure drainage device for plastic surgery according to claim 3, characterized in that: Two groups of docking card strips (11) are provided on the inner side of the negative pressure machine (1), and the bottoms of the first tank body (2) and the second tank body (3) are provided with strip-shaped card grooves (21) for use with the docking card strips (11), and the ends of the negative pressure machine (1) are provided with docking card grooves (10) for use with the limiting card plates (4).

5. The minimally invasive negative pressure drainage device for plastic surgery according to claim 3, characterized in that: The air inlet end of the three-way joint (16) is provided with a conical air nozzle (12), and the middle part of the three-way joint (16) is provided with a regulating valve (9).

6. A minimally invasive negative pressure drainage device for plastic surgery according to claim 5, characterized in that: A first squeeze bottle (7) and a second squeeze bottle (19) are arranged above the negative pressure cover (5); the first squeeze bottle (7) and the liquid injection joint (14) as well as the second squeeze bottle (19) and the liquid injection joint (14) are butt-jointed and fixed via two second hoses (18) respectively.

7. The minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: A spray pipe (22) is fixedly installed inside the first tank body (2) and the second tank body (3), and a water injection joint (23) is provided at the upper end of the spray pipe (22), and a spring valve (20) is provided at the bottom of the first tank body (2) and the second tank body (3).

8. The minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: A lifting sleeve (29) is movably mounted on the upper end of the sealing joint (26), and the lifting sleeve (29) and the conical sleeve (17) are butt-jointed and fixed, and a plurality of groups of V-shaped notches are distributed in an annular shape on the surface of the conical sleeve (17).

9. A minimally invasive negative pressure drainage device for plastic surgery according to claim 8, characterized in that: A butt joint (27) is fixedly installed at the middle position of the inner side of the sealing joint (26), and a limit ring (28) is fixedly installed at the lower part of the conical sleeve (17) on the inner side of the sealing joint (26).

10. The method for using a minimally invasive negative pressure drainage device for plastic surgery according to claim 1, characterized in that: The following steps are involved: Step 1: clean the minimally invasive affected area of ​​the patient, place the sponge block (13) at the minimally invasive position, and clamp the negative pressure cover (5) on the sponge block (13), and use an adhesive film to seal and fix the negative pressure cover (5) and the skin; Step 2: insert the two ends of the first hose (8) into the negative pressure cover (5) and the second tank (3) respectively, start the negative pressure machine (1), and generate negative pressure attraction inside the negative pressure cover (5) through the first hose (8), so that the negative pressure cover (5) and the sponge block (13) shrink and deform, thereby absorbing the exudate from the wound.

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