Negative-pressure wound debridement and healing promoting device for burn plastic surgery

Abstract

The invention discloses a negative pressure wound debridement and healing promoting device for burn plastic surgery, and relates to the technical field of burn wound debridement, the negative pressure wound debridement and healing promoting device comprises an application assembly and a machine body, a negative pressure suction device is installed on the inner wall of the machine body, the output end of the negative pressure suction device is fixedly communicated with a drainage tube, and the end part of the drainage tube is connected with a negative pressure mechanism; a plurality of pipeline connecting assemblies are arranged on the side face of the negative pressure mechanism and distributed in an annular array mode, and connecting pipes are fixedly communicated between the pipeline connecting assemblies and the application assemblies. Through the negative pressure mechanism, the application assembly sequentially carries out negative pressure operation on a burn wound from outside to inside, the negative pressure drainage acting force can be continuously adjusted to promote blood circulation, remove waste and media and achieve the purpose of promoting healing, the sealing effect is good, the blockage condition of a channel can be automatically sensed, a certain buffering effect is achieved, and the application effect is good. And the practicability is excellent.

Description

Technical Field

[0001] The invention relates to the technical field of burn wound debridement, and in particular to a burn plastic surgery negative pressure wound debridement and healing promoting device. Background Art

[0002] Negative pressure wound debridement and healing promotion in burn and plastic surgery is a method of promoting wound healing by using a negative pressure suction device. It achieves the effect of drainage and suction by applying appropriate negative force on the wound surface, thereby promptly discharging purulent effusions, necrotic tissues, foreign bodies, abnormal accumulation of blood and digestive fluids and other harmful substances in the body cavity, organs or tissues from the burn wound, thereby reducing pressure and eliminating dead space, eliminating inflammatory stimulation to the body, and then changing the biological environment of the infected area, reducing the body's inflammatory response, and achieving the purpose of promoting healing.

[0003] However, most of the existing wound debridement and healing devices are negative pressure suction devices connected to dressings through pipes, and the dressings are directly covered on the wound for negative pressure suction. However, when this method is actually used, the entire dressing coverage area is subjected to negative pressure as a whole. This method may have poor flexibility and cannot improve blood circulation in the wound area, which may affect the speed and effect of wound healing. In addition, the existing wound debridement and healing devices lack automatic perception of blockage conditions in the pipes within the device, which may affect the effect and efficiency of patient burn treatment. Summary of the invention

[0004] The purpose of the present invention is to provide a burn plastic surgery negative pressure wound debridement and healing promotion device, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a burn plastic surgery negative pressure wound debridement and healing device, comprising: an application component and a body, a negative pressure suction device is installed on the inner wall of the body, the output end of the negative pressure suction device is fixedly connected with a drainage tube, the end of the drainage tube is connected with a negative pressure mechanism, a plurality of pipeline connection components are arranged on the side of the negative pressure mechanism, the plurality of pipeline connection components are distributed in a ring array, a connection pipe is fixedly connected between the pipeline connection component and the application component, and also includes a sealing mechanism and a sensing mechanism arranged inside the body; A negative pressure mechanism, through the operation of which the dressing assembly performs negative pressure operation on the burn wound from outside to inside in sequence, and continuously adjusts the force of negative pressure drainage; A sealing mechanism, which, as the negative pressure mechanism operates, drives the sealing mechanism to operate to shield and seal the used connecting pipe; The sensing mechanism senses the blockage of the corresponding connecting pipe as the negative pressure mechanism applies negative pressure to the burn wound, and serves the purpose of buffering the negative pressure.

[0006] Optionally, the dressing assembly includes a plurality of groups of suction rings; The suction ring comprises: an annular applicator and an annular tube, a plurality of tube bodies are fixedly connected at the lower surface of the annular tube, suction grooves are equidistantly provided at the lower surface of the annular applicator, the ends of the tube bodies are connected to the suction grooves, a connector assembly is fixedly connected at the upper surface of the annular tube, and one end of the connecting tube is connected to the end of the connector assembly; The multiple groups of suction rings are distributed radially, the multiple annular applicators and the multiple annular tubes are distributed radially, the inner side surfaces one and the inner side surfaces two of adjacent annular applicators fit together, the multiple annular applicators form a circular applicator structure, and the suction grooves on the multiple annular applicators gradually decrease from the outside to the inside.

[0007] Optionally, the negative pressure mechanism includes: A connecting box, the connecting box is fixedly installed on the inner wall of the body, a plurality of partition plates are fixedly connected to the inside of the connecting box, the plurality of partition plates are distributed in a ring array, and a connecting chamber is formed between two adjacent partition plates, a plurality of pressure relief valves are installed on the side of the connecting box, the pressure relief valves correspond to the connecting chamber, the pipeline connecting assembly is installed on the side of the connecting box away from the negative pressure suction device, the pipeline connecting assembly corresponds to the connecting chamber, a connecting shell is fixedly connected to the inner wall of the body through a support, and the connecting shell is close to the negative pressure suction device An opening is provided on one side for inserting the drainage tube. When the negative pressure suction device is running to suck air, the gas at the scald wound is sucked away. The extracted gas is passed through the tube body, the annular tube, the connecting tube, the pipeline connecting assembly, the communicating chamber and the connecting shell, and then is sucked into the storage tank through the drainage tube. The storage tank is installed on the inner wall of the body, and the storage tank is placed in the middle of the drainage tube and is connected to the drainage tube for receiving the medium from the drainage tube. It also includes a rotating mechanism for switching the communicating chamber in sequence.

[0008] Optionally, the rotating mechanism includes: The motor, the outer shell of the motor is fixedly installed on the inner wall of the body through a mounting piece, the rotating part of the motor is fixedly connected with a rotating shaft, and the center of the side of the connecting shell is provided with two openings for the rotating shaft to penetrate and be rotatably connected with the fixed axis, the end of the rotating shaft is fixedly connected with a rotating plate, the side of the rotating plate is rotatably connected with the side of the connecting shell, the side of the rotating plate away from the negative pressure suction device is rotatably connected with the side of the connecting box, the outer surface of the rotating plate is provided with two through holes, the two through holes are symmetrically arranged, and the side of the connecting box is provided with multiple connecting holes. The connecting port and the through port have the same opening specifications. When the motor drives the rotary plate to rotate, the two through ports will continuously face the two relative connecting ports, so that the corresponding annular tubes are connected. Then, as the negative pressure suction device operates, negative pressure healing is performed on the patient's wound. The pipe connection assembly includes an upper half group of pipe connectors and a lower half group of pipe connectors. The connector head assembly includes a connecting pipe head one and a connecting pipe head two. The upper half group of pipe connectors and the lower half group of pipe connectors are respectively connected to the connecting pipe head one and the connecting pipe head two through the two connecting pipes.

[0009] Optionally, the sealing mechanism includes: Two connecting blocks, the two connecting blocks are respectively fixedly mounted on both sides of the rotating plate, the positions of the connecting blocks correspond to the through openings, a plurality of rotating rods are connected to the side of the connecting box with a fixed axis rotation, a V-shaped resist is fixedly connected to the outer surface of the rotating rod, the V-shaped resist includes an inner side surface 2 and an inner side surface 1, when the rotating plate drives the connecting block to rotate clockwise, the connecting block will press against the plurality of inner side surfaces 1 in turn to drive the V-shaped resist to deflect without contacting the inner side surface 2, a plurality of groups of magnetic components are fixedly connected to the side of the connecting box, the plurality of groups of magnetic components are distributed in a circular array, each group of magnetic components includes two magnetic components, the V-shaped resist is made of metal, and is used to magnetically lock the V-shaped resist after the V-shaped resist is deflected, and also includes a movable component arranged on the rotating rod.

[0010] Optionally, the moving part includes: The mounting cavity is opened inside the connection box, the moving parts are all arranged in the mounting cavity, the end of the rotating rod away from the V-shaped abutment is fixedly connected with a large gear, and the large gear is located inside the mounting cavity, the inner wall of the mounting cavity is connected with a connecting shaft for fixed axis rotation, the outer surface of the connecting shaft is fixedly connected with a small gear, the large gear is meshed and connected with the small gear in transmission, the inner wall of the mounting cavity is fixedly connected with a limiting member, the outer surface of the limiting member is slidably connected with a gear condition, the tooth groove portion of the tooth condition is meshed with the tooth groove portion of the small gear, A covering piece is fixedly connected to the end of the gear condition, and the connecting port is covered as the covering piece moves linearly. A trigger block 1 is fixedly connected to the inner wall of the installation cavity. When the covering piece completely covers the connecting port, it squeezes and triggers the trigger part of the trigger block 1. The trigger block 1 transmits the signal to the control board through the wireless signal transmitter, and the control board immediately controls the operation of the pump body assembly, and then inflates the airbag assembly through the air pipe. The air pipe is used to connect the airbag assembly with the pump body assembly. The airbag assembly is located at the installation slot opened at the center of the covering piece.

[0011] Optionally, the sensing mechanism includes: A connecting cylinder, wherein the connecting cylinder is fixedly mounted on the inner wall of the machine body, the upper end of the connecting cylinder is fixedly connected to the outer surface of the drainage tube, a piston head is slidably connected to the inner wall of the connecting cylinder, the piston head and the opposite side of the machine body are commonly and fixedly connected with a spring, a distance sensing device is arranged in the connecting cylinder, and the distance sensing device is mounted on the inner wall of the machine body.

[0012] Optionally, a trigger block 2 is installed on the inner side surface of the V-shaped abutment. When the trigger block 2 is pressed and triggered, a signal is transmitted to a control panel via a wireless signal transmitting device, and the control panel controls the airbag assembly to deflate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention operates the negative pressure mechanism to make the dressing component perform negative pressure operation on the burn wound from the outside to the inside in sequence, and continuously adjusts the negative pressure drainage force. This method adopts a dynamic negative pressure suction method, which can extract each suction groove on the dressing component in sequence, so that the burn wound enters a negative pressure state in sequence, thereby promoting blood circulation and removing metabolic waste and inflammatory mediators, thereby accelerating wound healing. This method can make the patient's wound enter a negative pressure state in sequence from the outside to the inside, and can continuously increase the negative pressure force to achieve the effect of pushing blood and massaging, and can also shrink the wound. At the same time, the suction force around the wound is lower, and the suction force near the center is increased, thereby having an excellent adaptability effect, reducing the patient's pain and negative pressure extraction pressure, and improving the treatment effect.

[0014] 2. The present invention drives the sealing mechanism to operate through the operation of the negative pressure mechanism to block and seal the connecting tube after use. The sealing mechanism first blocks and seals the channel after use, and then fills and seals it with an airbag, thereby preventing inflammatory substances from contaminating the device and leakage of substances drained by negative pressure. The operation of the overall mechanism is based on the switching process of multiple connecting ports. Before and after switching, the multiple connecting ports are sequentially aligned to achieve connectivity with multiple negative pressure channels. During the switching process, the sealing mechanism is driven to operate to automatically block and seal the connecting port that has just been used, which has excellent intelligent and automated effects.

[0015] 3. The sensing mechanism of the present invention can sense the blockage of the corresponding connecting tube and play the purpose of buffering the negative pressure. The sensing mechanism assists in sensing the negative pressure suction situation. When the negative pressure suction device is operating, part of the suction force acts on the connecting tube to make the piston head overcome the spring tension and move up. The distance sensing device monitors the movement of the piston head in the connecting tube in real time to evaluate the channel blockage situation and buffer the pressure when the port is not connected. This method can timely and accurately sense the blockage of multiple branch channels and promptly notify medical staff for directional inspection, saving time for manual detection and reducing the delay and consumption time of negative pressure treatment. It can also avoid damage to components that may be caused by the port being disconnected when switching, and there is no need to frequently start and stop the negative pressure suction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the structure of the present invention; Figure 2 It is a schematic diagram of the structure of the dressing assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the pipeline connection assembly of the present invention; Figure 4 It is a schematic diagram of the structure of the negative pressure suction device of the present invention; Figure 5 It is a schematic diagram of the structure of the connection shell of the present invention; Figure 6 It is a schematic diagram of the structure of the motor of the present invention; Figure 7 It is a schematic diagram of the structure of the opening of the present invention; Figure 8 It is a schematic diagram of the structure of the connection port of the present invention; Fig. 9 It is a schematic diagram of the structure of the connecting chamber of the present invention; Fig.10 It is a schematic diagram of the structure of the suction groove of the present invention; Fig.11 It is a schematic diagram of the related structure of the shielding member, the large gear, the small gear, the connecting port and the trigger block in the connection box of the present invention; Fig.12It is a schematic diagram of the structure of the V-shaped abutment of the present invention; Fig.13 For the present invention Figure 6 A magnified view of the structure in the middle.

[0017] In the figure: 1, machine body; 2, negative pressure suction device; 3, drainage tube; 4, pipeline connection assembly; 5, annular applicator; 6, annular tube; 7, tube body; 8, suction groove; 9, connector assembly; 10, connection box; 11, partition plate; 12, connecting chamber; 13, connection shell; 14, motor; 15, mounting part; 16, rotating shaft; 17, rotating plate; 18, through port; 19, connecting port; 20, upper half group pipeline connection piece; 21, lower half group pipeline connection piece; 22, connecting pipe head 1; 23. Connecting pipe head 2; 24. Connecting block; 25. Rotating rod; 26. V-shaped abutment; 27. Inner side 2; 28. Inner side 1; 29. ​​Magnetic part; 30. Large gear; 31. Small gear; 32. Limiting part; 33. Gear condition; 34. Shielding part; 35. Trigger block 1; 36. Pump body assembly; 38. Airbag assembly; 39. Connecting tube; 40. Piston head; 41. Spring; 42. Distance sensing device; 43. Trigger block 2; 49. Installation cavity; 50. Pressure relief valve. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example: See Figures 1 to 13 The present embodiment provides a burn plastic surgery negative pressure wound debridement and healing device, including an application component and a body 1, a negative pressure suction device 2 is installed on the inner wall of the body 1, the output end of the negative pressure suction device 2 is fixedly connected with a drainage tube 3, the end of the drainage tube 3 is connected with a negative pressure mechanism, a plurality of pipe connection components 4 are arranged on the side of the negative pressure mechanism, the plurality of pipe connection components 4 are distributed in a ring array, a connecting pipe is fixedly connected between the pipe connection component 4 and the application component, and also includes a sealing mechanism, a sensing mechanism and a negative pressure mechanism arranged inside the body 1.

[0020] In this embodiment: The present invention uses a negative pressure mechanism to distinguish it from the prior art method of applying negative pressure to the entire application surface during negative pressure treatment of burn wounds. The present invention uses a dynamic negative pressure suction method to extract the suction grooves on the application component in sequence, so that the burn wound enters a negative pressure state in sequence, so as to promote blood circulation, remove metabolic waste and inflammatory mediators, and accelerate wound healing. The present invention enters negative pressure in sequence from the outside to the inside, and continuously increases the negative pressure force, which can push blood, massage the skin, and close the wound. At the same time, the suction force around the wound is lower, and the suction force near the center is larger, which has an excellent adaptability effect, can reduce the patient's pain and the negative pressure extraction pressure, and improve the treatment effect.

[0021] The present invention uses a sealing mechanism to first block and seal the channel after use, and then perform airbag filling and sealing to prevent inflammatory substances from contaminating the device and leakage of substances discharged by negative pressure drainage. The operation of the overall mechanism is based on the switching process of multiple connecting ports. Before and after switching, the multiple connecting ports 19 are sequentially aligned to achieve connectivity of multiple negative pressure channels. During the switching process, the sealing mechanism is driven to operate to automatically block and seal the connecting port 19 that has just been used, which has excellent intelligent and automated effects.

[0022] The present invention can assist in sensing the negative pressure suction situation through the sensing mechanism. When the negative pressure suction device is operating, part of the suction force acts on the connecting cylinder to make the piston head overcome the spring tension and move upward, and utilizes the movement of the piston head in the connecting cylinder and the distance sensing device to monitor, so as to evaluate the channel blockage situation, and can also buffer the pressure when the port is not connected. This method can timely and accurately sense the blockage of multiple branch channels, and promptly notify medical staff for directional inspection, thus saving manpower detection time and reducing the delay and consumption time of negative pressure treatment, and can avoid damage to components that may be caused by the port being disconnected when switching, and there is no need to frequently start and stop the negative pressure suction device.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig.10 In this embodiment, the dressing assembly includes multiple groups of suction rings.

[0024] The suction ring member includes an annular applicator 5 and an annular tube 6, a plurality of tube bodies 7 are fixedly connected at the lower surface of the annular tube 6, suction grooves 8 are equidistantly provided at the lower surface of the annular applicator 5, the ends of the tube bodies 7 are connected to the suction grooves 8, a connecting head assembly 9 is fixedly connected at the upper surface of the annular tube 6, and one end of the connecting tube is connected to the end of the connecting head assembly 9.

[0025] Multiple groups of suction rings are distributed radially, multiple annular applicators 5 and multiple annular tubes 6 are distributed radially, the inner side surfaces 1 and 2 of adjacent annular applicators 5 fit together, multiple annular applicators 5 form a circular application structure, and the suction grooves 8 on the multiple annular applicators 5 gradually decrease from the outside to the inside.

[0026] In this embodiment: like Figure 2 As shown, in order to adapt to burn wounds of various specifications, multiple annular dressings 5 ​​can be cut, and guide grooves for easy cutting or disassembly can be pre-arranged between adjacent annular dressings 5, so as to facilitate use to meet the needs of wounds of various specifications. With the operation of the negative pressure mechanism, the suction grooves 8 under the two outermost annular tubes 6 can be extracted in sequence and synchronously, and then the negative pressure state can be synchronously entered from the outermost side, and then the negative pressure state can be entered inwardly in sequence, so as to meet the purpose of entering the negative pressure state from the outside to the inside. In the middle area of ​​the annular dressing 5, the last two connecting tubes can be docked with the connector assembly 9 on the innermost annular tube 6, and the docking can be achieved by the existing technology.

[0027] See also Figures 1 to 9 In this embodiment, the negative pressure mechanism includes: The connection box 10 is fixedly mounted on the inner wall of the body 1. A plurality of partition plates 11 are fixedly connected to the interior of the connection box 10. The plurality of partition plates 11 are distributed in a circular array. A connecting chamber 12 is formed between two adjacent partition plates 11. A plurality of pressure relief valves 50 are installed on the side of the connection box 10. The pressure relief valves correspond to the connecting chamber 12. The pipeline connection assembly 4 is installed on the side of the connection box 10 away from the negative pressure suction device 2. The pipeline connection assembly 4 corresponds to the connecting chamber 12. A connecting shell 13 is fixedly connected to the inner wall of the body 1 through a support. The connecting shell 13 An opening for inserting the drainage tube 3 is provided on one side close to the negative pressure suction device 2. When the negative pressure suction device 2 is operating to suck air, the gas at the scald wound is extracted. The extracted gas passes through the tube body 7, the annular tube 6, the connecting pipe, the pipeline connecting assembly 4, the connecting chamber 12 and the connecting shell 13, and then is sucked into the storage tank through the drainage tube 3. The storage tank is installed on the inner wall of the body 1, and the storage tank is placed in the middle of the drainage tube 3 and is connected to the drainage tube 3. It is used to collect the medium from the drainage tube 3, and also includes a rotating mechanism for switching the connecting chamber 12 in sequence.

[0028] The rotating mechanism includes: a motor 14, the outer shell of the motor 14 is fixedly installed on the inner wall of the body 1 through a mounting member 15, the rotating part of the motor 14 is fixedly connected with a rotating shaft 16, and an opening 2 for the rotating shaft 16 to penetrate and be connected with the rotating shaft 16 in a fixed axis rotation manner is provided at the center of the side of the connecting shell 13, and a rotating plate 17 is fixedly connected to the end of the rotating shaft 16, and the side of the rotating plate 17 is connected with the side of the connecting shell 13 in a fixed axis rotation manner, and the side of the rotating plate 17 away from the negative pressure suction device 2 is connected with the side of the connecting box 10 in a rotation manner, and two through-ports 18 are provided on the outer surface of the rotating plate 17, and the two through-ports 18 are symmetrically arranged, and a plurality of connecting ports 19 are provided on the side of the connecting box 10, and the opening specifications of the connecting ports 19 and the through-ports 18 are the same, and when the motor 14 drives the rotating plate 17 to rotate, the two through-ports 18 will continuously face the two opposite connecting ports 19, so that the corresponding annular tube 6 is connected, and then the negative pressure suction device 2 is operated to perform negative pressure healing on the patient's wound; Combination Figure 2 and Figure 4 The pipe connection assembly 4 includes thirteen upper pipe connection pieces 20 and twelve lower pipe connection pieces 21. The thirteen upper pipe connection pieces 20 are located in the upper part of the connection box 10, and the twelve lower pipe connection pieces 21 are located in the lower part of the connection box 10. The upper pipe connection pieces 20 and the lower pipe connection pieces 21 are arranged in a circular array outside the connection box 10. by Figure 2 As shown in the example, the connector assembly 9 includes thirteen connector pipe heads 1 22 and twelve connector pipe heads 2 23. The thirteen connector pipe heads 1 22 are located in the upper half of the annular applicator 5, and the twelve connector pipe heads 23 are located in the lower half of the annular applicator 5. The connector assembly 9 is radially arranged on the annular applicator 5. The outermost connecting pipe head 22 of the annular dressing member 5 is connected to Figure 4 The upper half of the rightmost pipe connector 20 is connected to the outermost connecting pipe head 23 of the annular dressing member 5. Figure 4 The leftmost lower half group of pipe connectors 21 are connected, the remaining upper half group of pipe connectors 20 are connected in a counterclockwise direction in sequence with the remaining connecting pipe heads 22 from the outside to the inside, and the remaining lower half group of pipe connectors 21 are connected in a counterclockwise direction in sequence with the remaining connecting pipe heads 23 from the outside to the inside.

[0029] In this embodiment: As the negative pressure suction device 2 operates, through the drainage tube 3, the connecting shell 13, the through port 18, the connecting port 19, the communicating chamber 12, the pipe connecting assembly 4 and the connecting pipe, the corresponding pipe connecting assembly 4 and the corresponding connecting head assembly 9 are connected by the connecting pipe, and then the corresponding communicating chamber 12 on the connecting box 10 is connected with the corresponding annular pipe 6 on the annular dressing member 5, and then the negative pressure operation is performed on the patient's burn wound through the action of the tube body 7 and the suction groove 8. As the rotary plate 17 rotates, The two opposite ports 18 on the connecting box 10 rotate clockwise, and the ports 18 are constantly aligned with the connecting ports 19 on the connecting box 10 during the rotation. Since the two connecting ports 19 initially connected by the ports 18 are connected to the outermost annular tube 6, and as the ports 18 are aligned with the connecting ports 19 distributed in an annular array in turn, the correspondingly connected annular tubes 6 are from the outside to the inside, and then act on the patient's burned skin, performing a negative pressure operation from the outside to the inside, and finally can be played through the pressure relief valve 50 The purpose of pressure relief is to continuously make the patient's skin enter a negative pressure state from the outside to the inside because the dressing component is in a circular ring shape. Since the specifications of each suction groove 8 are the same, the suction grooves 8 on the outermost annular tube 6 are the most, and the annular tube 6 gradually decreases from the outside to the inside, so that the number of suction grooves 8 also gradually decreases, and the suction grooves 8 are in direct contact with the patient's skin, so that the point of negative pressure suction, that is, the area in direct contact with the burned skin, is further reduced. When the suction force remains unchanged, the area of ​​negative pressure contact is reduced, which is bound to increase the suction force and can also serve the purpose of pushing the blood. This kind of dynamic negative pressure and the form of entering the negative pressure state in sequence are different from the existing method of directly entering the negative pressure form as a whole, and have more beneficial effects. On the one hand, it can eventually make the patient's skin gradually enter the negative pressure suction state from the outside to the inside. On the other hand, as the negative pressure suction is gradually entered from the outside to the inside, the suction force of the negative pressure is also increased as the negative pressure suction is entered in sequence. This method has the following advantages: In the prior art, during the suction process, the entire dressing surface is applied to the burn wound to perform synchronous negative pressure, which lacks dynamic changes and may be detrimental to the speed and effect of burn wound healing. The present method, through this dynamic negative pressure suction, can effectively promote blood circulation in the wound area, help remove metabolic waste and inflammatory mediators in the wound, accelerate wound healing and improve treatment effects. During the negative pressure operation, the suction grooves 8 on the dressing component will be drawn in turn, so that the wound enters the negative pressure state in turn to promote blood circulation in the wound. In the process of negative pressure operation treatment, since the negative pressure state is entered in turn, the blood can be pushed to a certain extent through the suction grooves 8, which achieves the purpose of dynamic massage, is more conducive to blood circulation, and improves wound recovery.

[0030] This method is different from the prior art in that the negative pressure is sequentially applied from the outside to the inside, and the negative pressure force can be continuously increased during this process, because usually burn wounds all have a most serious burn center, which continuously spreads outward after being burned to form a large burn area. For example, a large area of ​​burn occurs on the back of a patient, and the center of the burn wound is usually more serious. Therefore, through the unique negative pressure form of this device, the negative pressure state can be sequentially applied from the outside of the burn wound center to the inside of the burn wound center, and the wound area can sequentially apply the negative pressure state from the outside to the inside, which plays a role in pushing blood and massaging the skin, and accelerates the healing of the wound to a certain extent. In addition, the burn condition at the edge of the wound is usually not very serious, and the severity of the wound center is relatively large. If the existing direct overall negative pressure form is used, when the wound needs to be treated, When negative pressure operation is performed at the edge of the wound, since the negative pressure operation is to connect the pipeline at the center of the wound for negative pressure extraction, a greater suction force may be required to meet the suction of the wound edge, which may increase the patient's pain. This method has a lower suction force around the wound, and the closer to the center of the wound, the greater the suction force. It can have an adaptive effect to a certain extent, reducing the area under the action of large negative pressure, and focusing on negative pressure operation at the center of the wound. It can reduce the pressure of negative pressure extraction to a certain extent, because there is no need to apply a single large negative pressure at the center of the wound to adapt to the negative pressure treatment and healing at the edge of the wound. Therefore, this method has a multiple-birds-at-one effect. It is different from the overall negative pressure of the prior art, and can enter the negative pressure state from the outside to the inside, and focus on increasing the negative pressure at the center of the wound to meet the effect of negative pressure healing.

[0031] See also Figures 1 to 9 ,as well as Figure 11 to Figure 12 In this embodiment, the sealing mechanism includes: Two connecting blocks 24 are fixedly mounted on both sides of the rotating plate 17 respectively, and the positions of the connecting blocks 24 correspond to the through openings 18. A plurality of rotating rods 25 are connected to the side of the connecting box 10 for fixed-axis rotation. A V-shaped abutment 26 is fixedly connected to the outer surface of the rotating rod 25. The V-shaped abutment 26 includes an inner side surface 27 and an inner side surface 1 28. When the rotating plate 17 drives the connecting block 24 to rotate clockwise, the connecting block 24 will press against the plurality of inner side surfaces 1 28 in turn to drive the V-shaped abutment 26 to deflect without contacting the inner side surface 27. A plurality of groups of magnetic components are fixedly connected to the side of the connecting box 10, and the plurality of groups of magnetic components are distributed in a circular array. Each group of magnetic components includes two magnetic components 29. The V-shaped abutment 26 is made of metal and is used to magnetically lock the V-shaped abutment 26 after it is deflected. It also includes a moving component arranged at the rotating rod 25.

[0032] The moving parts include an installation cavity 49, which is opened inside the connection box 10. The moving parts are all arranged in the installation cavity 49. The end of the rotating rod 25 away from the V-shaped abutment 26 is fixedly connected to the large gear 30, and the large gear 30 is located inside the installation cavity 49. The inner wall of the installation cavity 49 is connected to a connecting shaft for fixed-axis rotation. The outer surface of the connecting shaft is fixedly connected to a small gear 31. The large gear 30 is meshed and connected with the small gear 31. The inner wall of the installation cavity 49 is fixedly connected to a limit member 32. The outer surface of the limit member 32 is slidably connected to a gear condition 33. The tooth groove portion of the tooth condition 33 is aligned with the tooth groove portion of the small gear 31. The end of the gear condition 33 is engaged, and a covering member 34 is fixedly connected to the end of the gear condition 33. As the covering member 34 moves linearly, the connecting port 19 is covered. A trigger block 35 is fixedly connected to the inner wall of the installation cavity 49. When the covering member 34 completely covers the connecting port 19, it squeezes and triggers the trigger part of the trigger block 35. The trigger block 35 transmits the signal to the control board through the wireless signal transmitter. The control board immediately controls the operation of the pump body assembly 36, and then inflates the airbag assembly 38 through the air pipe. The air pipe is used to connect the airbag assembly 38 with the pump body assembly 36. The airbag assembly 38 is located at the installation slot opened at the center of the covering member 34.

[0033] In this embodiment: As the rotating plate 17 rotates clockwise, the connecting block 24 is driven to rotate synchronously. When the connecting block 24 rotates, the connecting block 24 and the inner side surface 27 are pressed against each other, thereby driving the inner side surface 27 to deflect, and then the V-shaped resist 26 is deflected, and then after the deflection, the magnetic member 29 is locked by the magnetic attraction of the magnetic member 29. As the V-shaped resist 26 rotates, the rotating rod 25 is synchronously driven to rotate. As the rotating rod 25 rotates, the large gear 30 is driven to rotate, and the small gear 31 is driven to rotate for multiple cycles under the meshing transmission. Then, under the meshing action and the sliding restriction action of the limit member 32, the tooth condition 33 drives the shielding member 34 toward the corresponding connection port 1. 9 moves, and when the connecting port 19 is completely blocked by the blocking member 34, the blocking member 34 will press and contact with the trigger block 1 35, so that the trigger block 1 35 transmits a signal to the control board, and the control board immediately operates the pump body assembly 36 to fill the air into the airbag assembly 38, so that the airbag assembly 38 can expand at this time to completely fill the gap between the connecting port 19 and the rotary plate 17, thereby playing a further sealing role. Since the present device is different from the existing single-channel overall negative pressure form, it adopts the form of multi-channel multi-branch negative pressure, and is based on the rotation of the through port 18 and is connected to multiple connecting ports 19 in turn, so as to achieve the purpose of connecting and switching channels in turn, and then this method first passes through the through plate 17 on the through plate 17 The opening 18 and the connecting opening 19 are not directly opposite to each other to play a sealing role, and the purpose of filling the gap by inflating this airbag is to play a secondary sealing effect, so as to avoid the adhesion of inflammatory substances on the contact surface of the rotary plate 17 and the connecting box 10 under the negative pressure environment. Inflammatory substances may contaminate the contact surface of the rotary plate 17 and the connecting box 10, and due to this form of rotation switching, gaps and general sealing conditions may occur. Therefore, this method can efficiently seal the channel just used in turn through this automated secondary sealing effect, which helps to ensure the negative pressure environment of the channel just used and avoid the adverse situation of inflammatory substances being exposed. It should also be noted that due to the position of the through opening 18 on the rotary plate 17 and the connecting block 24, The connection block 24 will not squeeze the inner side surface 27 of the V-shaped resist 26 when the through port 18 is no longer directly connected to the connecting port 19 but is about to be directly connected to the next connecting port 19. The connecting block 24 will press against the V-shaped resist 26, causing the sealing mechanism to start to operate, thereby blocking and sealing the last connecting port 19 that has just been used. The operation of the overall mechanism is based on the switching process of multiple connecting ports 19. Before and after the switching, the multiple connecting ports 19 are sequentially opposed to each other, and the sealing mechanism is driven to operate during the switching process to block and seal the connecting port 19 that has just been used, which has excellent intelligent and automatic effects.

[0034] See also Figures 1 to 9 ,as well as Figures 11 to 13In this embodiment, the sensing mechanism includes: The connecting cylinder 39 is fixedly mounted on the inner wall of the machine body 1. The upper end of the connecting cylinder 39 is fixedly connected to the outer surface of the drainage tube 3. A piston head 40 is slidably connected to the inner wall of the connecting cylinder 39. The piston head 40 and the opposite side of the machine body 1 are fixedly connected with a spring 41. A distance sensor device 42 is arranged in the connecting cylinder 39 and is mounted on the inner wall of the machine body 1.

[0035] In this embodiment: Since the present method is based on the negative pressure suction device 2 to generate negative pressure suction, and then through the through port 18 in turn facing the multiple connecting ports 19, and then through the multiple connecting chambers 12, multiple connecting tubes, and multiple annular tubes 6 in turn, the patient's burn wound is subjected to negative pressure from the outside to the inside. Since multiple annular tubes 6, annular dressings 5 ​​and suction grooves 8 are provided, the purpose of negative pressure from the outside to the inside can be achieved. However, since this method is different from the single-channel overall negative pressure form in the prior art, the prior art has only one channel for negative pressure, and when there is a problem with the negative pressure suction or the channel is blocked, it can be timely The connection tube and other corresponding connecting parts can be replaced and tested. However, due to the multiple negative pressure channels and the multi-branch form of a negative pressure suction device 2, it may be difficult to sense the blockage in each channel. Therefore, the sensing mechanism can serve the purpose of auxiliary sensing. When the negative pressure suction device 2 performs negative pressure operation on multiple channels, suction will be generated, and the connecting tube 39 and the drainage tube 3 are also interconnected. Therefore, during the suction process, a part of the suction force will act on the connecting tube 39, so that the piston head 40 moves upward to overcome the elastic tension of the spring 41. Figure 6 and Fig.13 As shown, the upward movement degree of the piston head 40 is monitored in real time by the distance sensor device 42 to evaluate the negative pressure suction condition in the current channel; Because when the liquid exuding from the burn wound is subjected to negative pressure treatment, it may contain high concentrations of proteins, cell fragments, blood clots, cellulose, inflammatory substances or other components, making the suction medium have a certain viscosity, so the channel may be blocked. Once the channel is blocked or completely blocked, the distance of the piston head 40 moving upward will inevitably change. When the change in the distance of the piston head 40 moving upward exceeds a certain safety threshold, it can be determined that the channel of the current negative pressure operation may be blocked or abnormal. At this time, the medical staff can be notified to check the corresponding channel in time and take measures such as replacing pipes and other components. At the same time, the induction mechanism is used, and when the medical staff is handling it, there is no need to check all the channel pipes in turn, which greatly reduces the time required for troubleshooting and the practicability of the device is high.

[0036] In addition, the induction mechanism has the effect of protecting components and not stopping the machine, because the present method acts on multiple channels by operating the negative pressure of a single negative pressure suction device 2, and the switching between the multiple channels is realized based on the through port 18 and the multiple connecting ports 19. Then, as the through port 18 rotates and is sequentially connected with the connecting ports 19, it is possible that the through port 18 is not directly connected to any of the connecting ports 19. Figure 8 As shown, the non-opening area between adjacent connecting ports 19, and thus, compared with the prior art, in order to avoid damage to components, the negative pressure suction device 2 may be briefly shut down to avoid damage to components caused by the suction force in a completely enclosed space, and the intermittent start and stop of the negative pressure suction device 2 will inevitably affect the service life of the negative pressure suction device 2, and the present application is different from the existing single-channel suction form. The present application involves multi-channel suction from the outside to the inside, and thus the number of continuous start and stop times may be large. Therefore, the present method uses the sensing mechanism to adapt and buffer the pressure of this part when it is completely sealed. When the through port 18 is not directly connected to any connecting port 19, the piston head 40 is continued to move upward to briefly balance the suction force of this part, thereby avoiding the effect of component damage, and there is no need to continuously start and stop the device, which has the purpose of multiple effects.

[0037] See also Figures 1 to 13 A trigger block 2 43 is installed at the inner side 28 of the V-shaped abutment 26. When the trigger block 2 43 is pressed and triggered, the signal is transmitted to the control panel through the wireless signal transmitting device, and the control panel controls the airbag assembly 38 to deflate.

[0038] In this embodiment: As the negative pressure mechanism is reversed, this corresponds to the process of connecting multiple connecting ports 19 in sequence through the through port 18, that is, it corresponds to the resetting of the entire mechanism. During the resetting, in order to open the airbag assembly 38 on the sealing mechanism to block the corresponding connecting port 19, that is, when the entire mechanism needs to be reversed and reset so that the through port 18 connects multiple connecting ports 19 in sequence, since the airbag assembly 38 has completely blocked and sealed the previous connecting port 19, at this time, as the rotating plate 17 is turned counterclockwise, the connecting block 24 is driven to rotate synchronously, so that the connecting block 24 preferentially contacts the trigger block 2 43 on the inner side 28 of the V-shaped resist 26, thereby achieving the purpose of immediate deflation, which helps the airbag assembly 38 to deflate in time to open the blockage of the connecting port 19, because the sealing mechanism It can be seen that the automatic inflation of the airbag assembly 38 is based on the sensing of the pressure contact between the shielding member 34 and the trigger block 35, and further, the operation of the negative pressure mechanism triggers the sealing mechanism in sequence. If it only relies on the reversal of the overall mechanism, the pressure between the connecting block 24 and the inner side surface 28 will instantly rotate the rotating rod 25, thereby driving the shielding member 34 to start moving and resetting. At this time, since the airbag has not been deflated in advance, the airbag also has a blocking and sealing effect on the connecting port 19, which may cause the airbag to be pulled, damage components, and jam components. Therefore, this method adopts this kind of pre-contact and prioritizes the sensing of deflation. When the overall mechanism is reversed, the airbag can be opened in advance and the through port 18 can be connected to multiple connecting ports 19 in sequence, which helps to ensure the stability of the structural operation.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A burn plastic surgery negative pressure wound debridement and healing device, characterized in that: It comprises an application assembly and a body (1), wherein a negative pressure suction device (2) is installed on the inner wall of the body (1), and an output end of the negative pressure suction device (2) is fixedly connected to a drainage tube (3); The end of the drainage tube (3) is connected to a negative pressure mechanism, which is used to enable the dressing assembly to perform negative pressure operation at the burn wound from the outside to the inside, and to continuously adjust the force of negative pressure drainage; A plurality of pipeline connection components (4) are arranged on the side of the negative pressure mechanism, the plurality of pipeline connection components (4) are distributed in a ring array, and a connecting pipe is fixedly connected between the pipeline connection components (4) and the application component; The wound debridement and healing promoting device further comprises a sealing mechanism and a sensing mechanism arranged inside the body (1), wherein: The sealing mechanism, driven by the negative pressure mechanism, shields and seals the used connecting tube; The sensing mechanism is used to sense the blockage of the corresponding connecting pipe and serves the purpose of buffering negative pressure.

2. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 1, characterized in that: The dressing assembly includes a plurality of groups of suction rings; The suction ring comprises an annular applicator (5) and an annular tube (6); a plurality of tube bodies (7) are fixedly connected at the lower surface of the annular tube (6); suction grooves (8) are equidistantly provided at the lower surface of the annular applicator (5); the ends of the tube bodies (7) are connected to the suction grooves (8); a connector assembly (9) is fixedly connected at the upper surface of the annular tube (6); one end of the connecting tube is connected to the end of the connector assembly (9); The plurality of groups of suction rings are radially distributed, the plurality of annular applicators (5) and the plurality of annular tubes (6) are radially distributed, the inner side surfaces 1 and 2 of adjacent annular applicators (5) are in contact with each other, the plurality of annular applicators (5) form a circular applicator structure, and the suction grooves (8) on the plurality of annular applicators (5) gradually decrease from the outside to the inside.

3. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 2, characterized in that: The negative pressure mechanism comprises: A connection box (10), the connection box (10) being fixedly mounted on the inner wall of the body (1), a plurality of partition plates (11) being fixedly connected inside the connection box (10), the plurality of partition plates (11) being distributed in a ring array, a connecting chamber (12) being formed between two adjacent partition plates (11), a plurality of pressure relief valves (50) being mounted on the side of the connection box (10), the pressure relief valves corresponding to the connecting chamber (12), the pipeline connection assembly (4) being mounted on a side of the connection box (10) away from the negative pressure suction device (2), the pipeline connection assembly (4) corresponding to the connecting chamber (12); A connecting shell (13) is fixedly connected to the inner wall of the body (1) via a support, and an opening for inserting the drainage tube (3) is provided on a side of the connecting shell (13) close to the negative pressure suction device (2); When the negative pressure suction device (2) sucks air, the gas at the scald wound is extracted and then sucked into the storage tank through the tube body (7), the annular tube (6), the connecting tube, the pipeline connecting assembly (4), the communicating chamber (12) and the connecting shell (13), and then through the drainage tube (3); The storage tank is mounted on the inner wall of the machine body (1), and is placed in the middle of the drainage pipe (3) and is connected to the drainage pipe (3) for receiving the medium from the drainage pipe (3), and also includes a rotating mechanism for sequentially switching the communicating chambers (12).

4. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 3, characterized in that: The rotating mechanism comprises: A motor (14), wherein the motor (14) is fixedly mounted on the inner wall of the machine body (1) via a mounting member (15), the rotating portion of the motor (14) is fixedly connected to a rotating shaft (16), the center of the side surface of the connecting shell (13) is provided with two openings for the rotating shaft (16) to pass through and be rotatably connected thereto, the end of the rotating shaft (16) is fixedly connected to a rotating plate (17), the side surface of the rotating plate (17) is rotatably connected to the side surface of the connecting shell (13), the side of the rotating plate (17) is rotatably connected to the side surface of the connecting box (10) away from the negative pressure suction device (2), the outer surface of the rotating plate (17) is provided with two through openings (18), the two through openings (18) are symmetrically arranged, the side surface of the connecting box (10) is provided with a plurality of connecting openings (19), the opening specifications of the connecting openings (19) and the through openings (18) are the same; As the motor (14) drives the rotary plate (17) to rotate, the two through ports (18) are constantly aligned with the two opposite connecting ports (19), thereby connecting the corresponding annular tubes (6), and the negative pressure suction device (2) performs negative pressure healing on the patient's wound. The pipe connection assembly (4) comprises an upper group of pipe connectors (20) and a lower group of pipe connectors (21), and the connector assembly (9) comprises a connecting pipe head 1 (22) and a connecting pipe head 2 (23). The upper group of pipe connectors (20) and the lower group of pipe connectors (21) are respectively connected to the connecting pipe head 1 (22) and the connecting pipe head 2 (23) through the two connecting pipes.

5. The burn and plastic surgery negative pressure wound debridement and healing promoting device according to claim 4, characterized in that: The sealing mechanism comprises: Two connection blocks (24), the two connection blocks (24) are respectively fixedly mounted on both sides of the rotating plate (17), the positions of the connection blocks (24) correspond to the through opening (18), a plurality of rotating rods (25) are rotatably connected to the sides of the connection box (10), a V-shaped abutment (26) is fixedly connected to the outer surfaces of the rotating rods (25), and the V-shaped abutment (26) comprises a second inner side surface (27) and a first inner side surface (28); When the rotating plate (17) drives the connecting block (24) to rotate clockwise, the connecting block (24) presses against the plurality of inner side surfaces (28) in sequence, thereby driving the V-shaped abutment (26) to deflect without contacting the inner side surface (27); A plurality of groups of magnetic components are fixedly connected to the side of the connection box (10), the plurality of groups of magnetic components are distributed in a ring array, each group of magnetic components comprises two magnetic components (29), the V-shaped resisting member (26) is made of metal and is used to magnetically lock the V-shaped resisting member (26) after the V-shaped resisting member (26) is deflected; The sealing mechanism further comprises a moving component arranged on the rotating rod (25).

6. The burn and plastic surgery negative pressure wound debridement and healing promoting device according to claim 5, characterized in that: The moving parts include: An installation cavity (49), wherein the installation cavity (49) is opened inside the connection box (10), the movable components are all arranged inside the installation cavity (49), the end of the rotating rod (25) away from the V-shaped abutment (26) is fixedly connected to a large gear (30), and the large gear (30) is located inside the installation cavity (49), a connecting shaft is rotatably connected to the inner wall of the installation cavity (49), a small gear (31) is fixedly connected to the outer surface of the connecting shaft, the large gear (30) and the small gear (31) are meshed and transmission-connected, a limiting member (32) is fixedly connected to the inner wall of the installation cavity (49), a tooth condition (33) is slidably connected to the outer surface of the limiting member (32), a tooth groove portion of the tooth condition (33) meshes with a tooth groove portion of the small gear (31), and a shielding member (34) is fixedly connected to the end of the tooth condition (33); As the shielding member (34) moves linearly to shield the connection port (19), a trigger block (35) is fixedly connected to the inner wall of the installation cavity (49); when the shielding member (34) completely shields the connection port (19), the triggering portion of the trigger block (35) is squeezed and triggered, and the trigger block (35) transmits a signal to the control panel via a wireless signal transmitter, and the control panel immediately controls the pump assembly (36) to operate, thereby inflating the airbag assembly (38) via the air pipe; The air pipe is used to connect the airbag assembly (38) with the pump body assembly (36); the airbag assembly (38) is located at a mounting notch opened at the center of the shielding member (34).

7. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 4, characterized in that: The sensing mechanism comprises: A connecting cylinder (39), the connecting cylinder (39) being fixedly mounted on the inner wall of the machine body (1), the upper end of the connecting cylinder (39) being fixedly connected to the outer surface of the drainage tube (3), a piston head (40) being slidably connected to the inner wall of the connecting cylinder (39), the piston head (40) and the opposite side of the machine body (1) being fixedly connected to a spring (41), a distance sensor device (42) being arranged in the connecting cylinder (39), the distance sensor device (42) being mounted on the inner wall of the machine body (1).

8. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 6, characterized in that: A trigger block 2 (43) is installed at the inner side 1 (28) of the V-shaped abutment (26); When the trigger block 2 (43) is pressed and triggered, a signal is transmitted to the control panel via a wireless signal transmitting device, and the control panel controls the airbag assembly (38) to deflate.

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