Burn plastic negative pressure wound debridement healing device

Abstract

The application discloses a burn shaping negative pressure wound debridement healing promotion device and relates to the technical field of burn wound debridement, which comprises a plaster assembly 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 assemblies are arranged on the side of the negative pressure mechanism. The plurality of pipeline connection assemblies are arranged in an annular array. A connecting pipe is fixedly connected between the pipeline connection assemblies and the plaster assembly. The plaster assembly is subjected to negative pressure operation from outside to inside at the burn wound in sequence through the negative pressure mechanism. The negative pressure drainage force can be continuously adjusted to promote blood circulation, remove waste and medium, achieve the purpose of healing promotion, has excellent sealing effect, can automatically sense the blockage of the channel and has certain buffering effect, and has excellent practicability.

Description

Technical Field

[0001] The invention relates to the technical field of burn wound debridement, in particular to a burn and 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. By applying appropriate negative force on the wound surface, the drainage and suction effect is achieved, and the burn wound can be promptly discharged with purulent effusions, necrotic tissue, foreign matter, abnormal accumulation of blood and digestive fluids and other harmful substances in the body cavity, organs or tissues, so as to reduce pressure and eliminate dead space, eliminate inflammatory stimulation to the body, and then change the biological environment of the infected area, reduce the body's inflammatory response, and achieve the purpose of promoting healing.

[0003] However, most of the currently available wound debridement and healing devices are negative pressure suction devices connected to an application through a pipe, and the application is directly covered on the wound to perform negative pressure suction. However, when this method is actually used, the entire application coverage area is negatively pressurized. This method may not be flexible 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 in the pipes within the device, which may affect the effect and efficiency of burn treatment for patients. Summary of the Invention

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

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a burn and plastic surgery negative pressure wound debridement and healing promotion device, comprising: an applicator assembly and a body, wherein a negative pressure suction device is mounted on the inner wall of the body, an output end of the negative pressure suction device is fixedly connected to a drainage tube, an end of the drainage tube is connected to a negative pressure mechanism, a plurality of pipe connection assemblies are disposed on the side of the negative pressure mechanism, the plurality of pipe connection assemblies are distributed in an annular array, a connecting pipe is fixedly connected between the pipe connection assemblies and the applicator assembly, and further comprising a sealing mechanism and a sensing mechanism disposed inside the body;

[0006] A negative pressure mechanism, through the operation of which the dressing assembly sequentially applies negative pressure on the burn wound from the outside to the inside, and continuously adjusts the force of the negative pressure drainage;

[0007] a sealing mechanism, which, as the negative pressure mechanism operates, drives the sealing mechanism to operate to shield and seal the connecting pipe after use;

[0008] 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 to buffer the negative pressure.

[0009] Optionally, the applicator assembly includes multiple sets of suction rings;

[0010] The suction ring comprises: an annular applicator and an annular tube, a plurality of tube bodies are fixedly connected on the lower surface of the annular tube, suction grooves are equidistantly formed on the lower surface of the annular applicator, and the ends of the tube bodies are connected to the suction grooves, and a connector assembly is fixedly connected on the upper surface of the annular tube, and one end of the connecting tube is connected to the end of the connector assembly;

[0011] Multiple groups of the suction rings are distributed radially, multiple annular applicators and multiple annular tubes are distributed radially, the inner side surfaces one and the inner side surfaces two of adjacent annular applicators are in contact with each other, and multiple annular applicators form a circular applicator structure. The suction grooves on the multiple annular applicators gradually decrease from the outside to the inside.

[0012] Optionally, the negative pressure mechanism includes:

[0013] 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 chambers, the pipe connecting assembly is installed on the side of the connecting box away from the negative pressure suction device, the pipe connecting assembly corresponds to the connecting chamber, the inner wall of the body is fixedly connected to a connecting shell through a support, 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 operating to suck air, the gas at the burn wound is extracted. The extracted gas passes through the tube body, the annular tube, the connecting pipe, the pipe connecting assembly, the communicating chamber and the connecting shell, and is then drawn 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.

[0014] Optionally, the rotating mechanism includes:

[0015] The motor, the outer shell of the motor is fixedly installed on the inner wall of the body through a mounting part, the rotating part of the motor is fixedly connected to the 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 connected to the fixed axis rotationally, the end of the rotating shaft is fixedly connected to a rotating plate, the side of the rotating plate is connected to the side of the connecting shell for fixed axis rotation, the side of the rotating plate away from the negative pressure suction device is connected to the side of the connecting box for rotation, 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 opening specifications of the connecting port and the through port are the same. As the motor drives the rotary plate to rotate, the two through ports will continuously face the two relative connecting ports, thereby connecting the corresponding annular tubes. Then, as the negative pressure suction device operates, the patient's wound is healed by negative pressure. 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.

[0016] Optionally, the sealing mechanism includes:

[0017] The two connecting blocks are respectively fixedly mounted on both sides of the rotating plate, and the positions of the connecting blocks correspond to the through-holes. A plurality of rotating rods are connected to the side of the connecting box for fixed-axis rotation. A V-shaped resistance piece is fixedly connected to the outer surface of the rotating rod, and the V-shaped resistance piece 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 resistance piece 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, and 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 resistance piece is made of metal and is used to magnetically lock the V-shaped resistance piece after the V-shaped resistance piece is deflected. It also includes a movable part arranged on the rotating rod.

[0018] Optionally, the moving component includes:

[0019] The mounting cavity is opened inside the connecting box, and 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 to the large gear, and the large gear is located inside the mounting cavity. The inner wall of the mounting cavity is connected to a connecting shaft for fixed axis rotation, and the outer surface of the connecting shaft is fixedly connected to a small gear. The large gear and the small gear are meshed and connected for transmission. The inner wall of the mounting cavity is fixedly connected to a limiting member, and the outer surface of the limiting member is slidably connected to a gear condition, and 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. 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.

[0020] Optionally, the sensing mechanism includes:

[0021] 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, and the piston head and the opposite side of the machine body are commonly fixedly connected with a spring, a distance sensing device is provided in the connecting cylinder, and the distance sensing device is mounted on the inner wall of the machine body.

[0022] Optionally, a trigger block 2 is installed on the inner side surface of the V-shaped resistance member. When the trigger block 2 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 to deflate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] One, the application operates through the negative pressure mechanism to make the application assembly at the burn wound, and the negative pressure operation is sequentially performed from outside to inside, and the negative pressure drainage force is continuously adjusted. The method adopts a dynamic negative pressure suction mode, can sequentially extract each suction groove on the application assembly, makes the burn wound sequentially enter a negative pressure state, and further promotes blood circulation and removes metabolic waste and inflammatory mediators, thereby accelerating wound healing. The method can make the patient's wound sequentially enter a negative pressure state from outside to inside, and can continuously increase the negative pressure force to realize the effects of pushing blood and massaging, and can also gather the wound, while the suction force around the wound is low, the suction force near the center is increased, thereby having excellent adaptive effect, reducing patient pain and negative pressure extraction pressure, and improving treatment effect.

[0025] Two, the application operates through the negative pressure mechanism to drive the sealing mechanism to operate to shield and block the used connecting pipe. The sealing mechanism first shields and seals the used channel, and then fills and seals the air bag, thereby avoiding pollution of the device by inflammatory substances and leakage of the negative pressure drainage substances. The overall mechanism operates based on the switching process of multiple connecting ports, sequentially faces multiple connecting ports before and after switching to realize the communication of multiple negative pressure channels, and drives the sealing mechanism to operate to automatically block and seal the just used connecting port during the switching process, thereby having excellent intelligent and automatic effects.

[0026] Three, the sensing mechanism can sense the blockage of the corresponding connecting pipe and buffer the negative pressure. The sensing mechanism assists in sensing the negative pressure suction condition. When the negative pressure suction equipment is operating, part of the suction force acts on the connecting cylinder to make the piston head move upward against the spring tension, and the distance sensing device is monitored to monitor the movement of the piston head in the connecting cylinder in real time, thereby evaluating the channel blockage condition and buffering the pressure when the connecting port is not connected. The method can accurately sense the blockage of the multi-branch channel in time, timely notify medical staff for directional inspection, save the time for manual detection, reduce the delay consumption time of negative pressure treatment, and avoid damage to the parts caused by the unconnected state of the connecting port during switching. The negative pressure suction equipment does not need to be frequently started and stopped. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a front view of the structure of the application;

[0028] Figure 2 It is a schematic view of the structure of the application at the application assembly;

[0029] Figure 3 It is a schematic view of the structure of the application at the pipe connecting assembly;

[0030] Figure 4 It is a schematic view of the structure of the application at the negative pressure suction equipment;

[0031] Figure 5A schematic diagram of the structure of the connecting shell of the present invention;

[0032] Figure 6 Schematic diagram of the structure of the motor of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the opening of the present invention;

[0034] Figure 8 It is a schematic diagram of the structure of the connection port of the present invention;

[0035] Figure 9 A schematic diagram of the structure of the connecting chamber of the present invention;

[0036] Figure 10 It is a schematic diagram of the structure of the suction groove of the present invention;

[0037] Figure 11 A schematic diagram of the related structure of the shielding member, large gear, small gear, connecting port and trigger block in the connection box of the present invention;

[0038] Figure 12 A schematic diagram of the structure of the V-shaped abutment of the present invention;

[0039] Figure 13 For the present invention Figure 6 A magnified view of the structure in the middle.

[0040] In the figure: 1. body; 2. negative pressure suction device; 3. drainage tube; 4. pipe connection assembly; 5. annular applicator; 6. annular tube; 7. pipe body; 8. suction trough; 9. connector assembly; 10. connection box; 11. partition plate; 12. connecting chamber; 13. connection shell; 14. motor; 15. mounting member; 16. swivel; 17. swivel plate; 18. through port; 19. connecting port; 20. upper half of the pipe connection assembly; 21. lower half of the pipe connection assembly; 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

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] Example: See Figures 1 to 13 The present embodiment provides a burn and plastic surgery negative pressure wound debridement and healing promotion 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 to a drainage tube 3. The end of the drainage tube 3 is connected to 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. It also includes a sealing mechanism, a sensing mechanism and a negative pressure mechanism arranged inside the body 1.

[0043] In this embodiment:

[0044] The present invention uses a negative pressure mechanism to distinguish itself from the prior art method of applying negative pressure to the entire application surface during negative pressure treatment of burn wounds. This method uses dynamic negative pressure suction to sequentially extract the various suction grooves on the application assembly, causing the burn wound to enter a negative pressure state in sequence to promote blood circulation, remove metabolic waste and inflammatory mediators, and accelerate wound healing. This method sequentially enters negative pressure from the outside to the inside and continuously increases the negative pressure force, which can push blood, massage the skin, and shrink the wound. At the same time, the suction force around the wound is lower, and the suction force near the center is greater, which has excellent adaptability, can reduce the patient's pain and negative pressure extraction pressure, and thus improve the treatment effect.

[0045] The present invention uses a sealing mechanism to first block and seal the channel after use, and then perform air bag 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, it is sequentially aligned with multiple connecting ports 19 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.

[0046] The present invention can assist in sensing the negative pressure suction situation through the sensing mechanism. When the negative pressure suction equipment 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 the movement of the piston head in the connecting cylinder and the distance sensing equipment are used to monitor and evaluate the channel blockage situation. It 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 targeted inspections, 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 equipment.

[0047] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 10 In this embodiment, the dressing assembly includes multiple groups of suction rings.

[0048] The suction ring 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 on 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.

[0049] 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 are in contact with each other, and multiple annular applicators 5 form a circular applicator structure. The suction grooves 8 on the multiple annular applicators 5 gradually decrease from the outside to the inside.

[0050] In this embodiment:

[0051] 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 set in advance 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 inwardly in sequence 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 existing technology can achieve docking.

[0052] See also Figures 1 to 9 In this embodiment, the negative pressure mechanism includes:

[0053] 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 ring 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 pipe connection assembly 4 is installed on the side of the connection box 10 away from the negative pressure suction device 2. The pipe connection assembly 4 corresponds to the connecting chamber 12. The inner wall of the body 1 is fixedly connected to a connection shell 13 through a support. The connection 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 from the burn wound is extracted. The extracted gas passes through the tube body 7, the annular tube 6, the connecting pipe, the pipe connecting assembly 4, the communicating chamber 12 and the connecting shell 13, and is then drawn into the storage tank through the drainage tube 3. The storage tank is installed on the inner wall of the machine 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 communicating chamber 12 in sequence.

[0054] The rotating mechanism includes: a motor 14, the outer shell of the motor 14 is fixedly mounted on the inner wall of the machine body 1 through a mounting member 15, the rotating portion of the motor 14 is fixedly connected to a rotary shaft 16, and an opening 2 is provided at the center of the side surface of the connecting shell 13 for the rotary shaft 16 to penetrate and be connected to the same with a fixed axis rotation, and the end of the rotary shaft 16 is fixedly connected to a rotary plate 17, and the side surface of the rotary plate 17 is connected to the side surface of the connecting shell 13 in a fixed axis rotation manner, and the side of the rotary plate 17 away from the negative pressure suction device 2 is rotatably connected to the side surface of the connecting box 10, and two through-holes 18 are provided on the outer surface of the rotary plate 17, and the two through-holes 18 are symmetrically arranged, and a plurality of connecting ports 19 are provided on the side surface of the connecting box 10, and the opening specifications of the connecting ports 19 and the through-holes 18 are the same. When the motor 14 drives the rotary plate 17 to rotate, the two through-holes 18 will continuously face the two opposite connecting ports 19, thereby connecting the corresponding annular tube 6, and then the negative pressure suction device 2 is operated to perform negative pressure healing on the patient's wound;

[0055] Combine Figure 2 and Figure 4 The pipe connection assembly 4 includes thirteen upper pipe connection members 20 and twelve lower pipe connection members 21. The thirteen upper pipe connection members 20 are located in the upper half of the connection box 10, and the twelve lower pipe connection members 21 are located in the lower half of the connection box 10. The upper pipe connection members 20 and the lower pipe connection members 21 are arranged in a circular array outside the connection box 10.

[0056] by Figure 2As shown in the example, the connector assembly 9 includes thirteen connector pipe heads 1 22 and twelve connector pipe heads 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.

[0057] The outermost connecting pipe head 22 of the annular dressing member 5 is connected to the Figure 4 The upper half of the rightmost pipe connector 20 is connected to the outermost connecting pipe head 23 of the annular applicator 5. Figure 4 The leftmost lower half group of pipe connectors 21 is connected, and the remaining upper half group of pipe connectors 20 are connected in a counterclockwise direction 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 with the remaining connecting pipe heads 2 23 from the outside to the inside.

[0058] In this embodiment:

[0059] 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 to the corresponding annular tube 6 on the annular dressing member 5, and then the patient's burn wound is subjected to negative pressure operation through the action of the tube body 7 and the suction groove 8. As the rotary plate 17 rotates, the patient's burn wound is subjected to negative pressure operation. , the two opposite ports 18 thereon rotate clockwise, and when rotating, the ports 18 will continuously face the connection ports 19 on the connection box 10, and since the two connection ports 19 initially connected by the ports 18 are connected to the outermost annular tube 6, and as the ports 18 are sequentially aligned with the connection ports 19 distributed in an annular array, 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 playing a role 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, and 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 negative pressure suction point, that is, the area in direct contact with the burned skin, is further reduced. When the suction force remains unchanged, the negative pressure contact area is reduced, which is bound to increase the suction force and can also serve the purpose of pushing blood. This 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:

[0060] In the existing technology, 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. This method, through this dynamic negative pressure suction, can effectively promote blood circulation in the wound area, help clear metabolic waste and inflammatory mediators in the wound, accelerate wound healing and improve treatment effects. During the negative pressure operation, the various 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 groove 8, which achieves the purpose of dynamic massage, is more conducive to blood circulation, and improves wound recovery.

[0061] This method is different from the existing technology. It enters the negative pressure state from the outside to the inside in sequence, and the negative pressure force can be continuously increased in the process. Because burn wounds usually have a most serious burn center, after the burn, it continues to spread outward to form a large area of ​​burn area. For example, if a patient has a large area of ​​burn on the back, the center of the burn wound is usually more serious. Then, through the unique negative pressure form of this device, the negative pressure state can be sequentially entered from the outside of the burn wound center to the inside of the burn wound center, and then the wound area enters 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 with a certain contraction purpose. Usually, the burn condition at the edge of the wound is not very serious, and the severity of the wound center is greater. If the existing direct overall negative pressure form is used, when the wound needs to be 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 larger 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 multi-pronged effect. Different from the overall negative pressure of the existing technology, it 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.

[0062] See also Figures 1 to 9 ,as well as Figures 11 to 12 In this embodiment, the sealing mechanism includes:

[0063] Two connecting blocks 24 are fixedly mounted on both sides of the rotary plate 17 respectively. The position of the connecting block 24 corresponds to the through-port 18. A plurality of rotating rods 25 are connected to the side of the connecting box 10 for fixed-axis rotation. A V-shaped resist 26 is fixedly connected to the outer surface of the rotating rod 25. The V-shaped resist 26 includes an inner side surface 27 and an inner side surface 1 28. When the rotary 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 resist 26 to deflect without contacting the inner side surface 2 27. A plurality of groups of magnetic components are fixedly connected to the side of the connecting box 10. 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 resist 26 is made of metal and is used to magnetically lock the V-shaped resist 26 after it is deflected. It also includes a movable component arranged at the rotating rod 25.

[0064] The moving part comprises a mounting cavity 49 which is arranged in the interior of the connecting box 10, the moving part is arranged in the mounting cavity 49, the end of the rotating shaft 25 away from the V-shaped resisting piece 26 is fixedly connected with a large gear 30, the large gear 30 is located in the interior of the mounting cavity 49, a connecting shaft is rotatably connected at the inner wall of the mounting cavity 49, a small gear 31 is fixedly connected at the outer surface of the connecting shaft, the large gear 30 and the small gear 31 are in meshing transmission connection, a limiting piece 32 is fixedly connected at the inner wall of the mounting cavity 49, a toothed condition 33 is slidably connected at the outer surface of the limiting piece 32, the tooth groove part of the toothed condition 33 is in meshing with the tooth groove part of the small gear 31, an occlusion piece 34 is fixedly connected at the end of the toothed condition 33, the connecting opening 19 is occluded along with the linear movement of the occlusion piece 34, a trigger block one 35 is fixedly connected at the inner wall of the mounting cavity 49, when the connecting opening 19 is completely occluded by the occlusion piece 34, the trigger part of the trigger block one 35 is pressed, the trigger block one 35 transmits the signal to the control board through the wireless signal transmitter, the control board immediately controls the pump body assembly 36 to operate, then the air bag assembly 38 is inflated through the air pipe, the air pipe is used for communicating the air bag assembly 38 with the pump body assembly 36, the air bag assembly 38 is located at the mounting groove which is arranged at the center of the occlusion piece 34.

[0065] In the embodiment,

[0066] 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 is pressed against the inner side surface 27, 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 of the limit member 32, the gear condition 33 drives the shielding member 34 toward the corresponding connecting 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 operate and fill the air into the air bag assembly 38, so that the air bag 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 this device is different from the existing single-channel overall negative pressure form, it adopts a multi-channel multi-branch negative pressure form, and based on the rotation of the through port 18, it is connected to multiple connecting ports 19 in turn to achieve the purpose of connecting and switching channels in turn, and this method first passes through the rotary 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 the airbag is to play a secondary sealing effect, so as to avoid the inflammatory substances adhering to 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 the form of this rotation switching, gaps and general sealing conditions may occur. Then, this method can efficiently seal the channel just after use 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 positions correspond to each other, and then when the through port 18 is facing the connecting port 19, the connecting block 24 will not squeeze the inner side surface 27 of the V-shaped resist 26. When the through port 18 is no longer facing and connected with the connecting port 19, and is about to face the next connecting port 19, the connecting block 24 will press against the V-shaped resist 26, so that the sealing mechanism starts to operate, and then blocks and seals 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, it faces the multiple connecting ports 19 in turn, and drives the sealing mechanism 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.

[0067] See also Figures 1 to 9 ,as well as Figures 11 to 13In this embodiment, the sensing mechanism includes:

[0068] The connecting cylinder 39 is fixedly mounted on the inner wall of the body 1. The upper end of the connecting cylinder 39 is fixedly connected to the outer surface of the drainage tube 3. The inner wall of the connecting cylinder 39 is slidably connected to a piston head 40. The piston head 40 and the opposite side of the body 1 are fixedly connected to a spring 41. A distance sensing device 42 is provided in the connecting cylinder 39 and is mounted on the inner wall of the body 1.

[0069] In this embodiment:

[0070] Since this method is based on the negative pressure suction device 2 to generate negative pressure suction, and then through the through port 18 in turn with multiple connecting ports 19, and then through multiple connecting chambers 12, multiple connecting tubes, and multiple annular tubes 6 in turn, the patient's burn wound is sequentially negatively pressurized from the outside to the inside. Since multiple annular tubes 6, annular applicators 5 and suction grooves 8 are set, the purpose of sequential negative pressure from the outside to the inside can be achieved. However, since this 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 replacement and inspection of corresponding connecting parts such as connecting tubes are carried out. 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 perception. 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, part of the suction force will act on the connecting tube 39, thereby causing the piston head 40 to move upward to overcome the elastic tension of the spring 41. Figure 6 and Figure 13 As shown, the upward movement of the piston head 40 is monitored in real time by the distance sensing device 42 to evaluate the current negative pressure suction condition in the channel;

[0071] Because when the liquid exuding from the burn wound is subjected to negative pressure treatment, it may contain a high concentration of protein, cell debris, blood clots, cellulose, inflammatory substances or other components, making the aspirated medium have a certain viscosity, so the channel may be blocked. Once the channel is blocked or completely blocked, the distance the piston head 40 moves upward will inevitably change. When the change in the distance the piston head 40 moves upward exceeds a certain safety threshold, it can be determined that the channel of the current negative pressure operation may be blocked or abnormal.

[0072] At this time, the medical staff can be notified to check the corresponding channels in time and take measures such as replacing pipes and other components. At the same time, the use of this sensing mechanism eliminates the need for medical staff to check all channels and pipes in turn when handling the situation, which greatly reduces the time required to detect blockages and makes the device highly practical.

[0073] And this induction mechanism also has the effect of protecting components and not stopping the machine, because this method is to act on multiple channels by operating the negative pressure of a single negative pressure suction device 2, and the switching between the multiple channels is based on the through port 18 and the multiple connecting ports 19. Then, as the through port 18 rotates and is sequentially connected to 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 existing technical means, 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 timely 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 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.

[0074] See also Figures 1 to 13 A trigger block 2 43 is installed at the inner side 28 of the V-shaped resist 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.

[0075] In this embodiment:

[0076] 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 reset of the entire mechanism. During the reset, 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 is connected to 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, it drives the connecting block 24 to rotate synchronously, so that the connecting block 24 preferentially contacts the trigger block 2 43 on the inner side 1 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 entire mechanism, the pressure between the connecting block 24 and the inner side surface 28 will immediately 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 plays a blocking and sealing role on the connecting port 19, which may cause the airbag to be pulled, damaged components, and stuck components. Therefore, this method adopts this kind of pre-contact and prioritizes the form of sensing deflation. When the entire mechanism is reversed, the airbag can be opened in advance and the port 18 can be connected to multiple connecting ports 19 in sequence, which helps to ensure the stability of the structural operation.

[0077] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A burn and plastic surgery negative pressure wound debridement and healing device, characterized by: 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, including a connection box (10) and a rotating mechanism. A plurality of connection ports (19) are provided on the side of the connection box (10). The rotating mechanism includes a rotating plate (17). Two through ports (18) are provided on the outer surface of the rotating plate (17). The two through ports (18) are symmetrically arranged. The opening specifications of the connection ports (19) and the through ports (18) are the same, so that negative pressure operation is performed sequentially from the outside to the inside, and the force of negative pressure drainage is continuously adjusted. A plurality of pipe connection assemblies (4) are provided on the side of the negative pressure mechanism, and the plurality of pipe connection assemblies (4) are distributed in a ring array, and a connecting pipe is fixedly connected between the pipe connection assemblies (4) and the application assembly; The wound debridement and healing promoting device further comprises a sealing mechanism and a sensing mechanism arranged inside the body (1); As the negative pressure mechanism operates, the sealing mechanism is driven to operate to shield and seal the used connecting pipe; As the negative pressure mechanism applies negative pressure to the burn wound, the sensing mechanism senses the blockage of the corresponding connecting pipe and serves to buffer the negative pressure. The dressing assembly includes multiple groups of suction rings, and the suction rings include an annular dressing member (5) and an annular tube (6). The lower surface of the annular tube (6) is fixedly connected with multiple tube bodies (7). The lower surface of the annular dressing member (5) is equidistantly provided with suction grooves (8). The end of the tube body (7) is connected to the suction groove (8). The upper surface of the annular tube (6) is fixedly connected with a connector assembly (9). One end of the connecting tube is connected to the end of the connector assembly (9). Multiple groups of suction rings are radially distributed. Multiple annular dressing members (5) and multiple annular tubes (6) are radially distributed. The inner side surfaces 1 and 2 of adjacent annular dressing members (5) are in contact with each other. Multiple annular dressing members (5) form a circular dressing structure. The suction grooves (8) on the multiple annular dressing members (5) gradually decrease from the outside to the inside.

2. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 1, characterized in that: The negative pressure mechanism comprises: A connecting shell (13), wherein the connecting box (10) is fixedly mounted on the inner wall of the machine body (1), a plurality of partition plates (11) are fixedly connected to the interior of the connecting box (10), the plurality of partition plates (11) are distributed in a ring array, and a connecting chamber (12) is formed between two adjacent partition plates (11), a plurality of pressure relief valves (50) are mounted on the side of the connecting box (10), the pressure relief valves corresponding to the connecting chamber (12), the pipe connecting assembly (4) is mounted on a side of the connecting box (10) away from the negative pressure suction device (2), and the pipe connecting assembly (4) corresponds to the connecting chamber (12); The 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 drawn into the storage tank through the tube body (7), the annular tube (6), the connecting tube, the pipe 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).

3. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 2, 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), a rotating portion of the motor (14) is fixedly connected to a rotating shaft (16), a second opening for the rotating shaft (16) to pass through and be connected to the rotating shaft in a fixed axis at the center of the side of the connecting shell (13), the rotating plate (17) is fixedly connected to the end of the rotating shaft (16), the side of the rotating plate (17) is connected to the side of the connecting shell (13) in a fixed axis in a rotating manner, and the side of the rotating plate (17) away from the negative pressure suction device (2) is connected to the side of the connecting box (10) in a rotating manner; 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). The negative pressure suction device (2) then performs negative pressure healing on the patient's wound. The pipe connection assembly (4) includes an upper half group of pipe connectors (20) and a lower half group of pipe connectors (21). The connector assembly (9) includes a connecting pipe head 1 (22) and a connecting pipe head 2 (23). The upper half group of pipe connectors (20) and the lower half 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.

4. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 3, characterized in that: The sealing mechanism comprises: Two connecting blocks (24), the two connecting blocks (24) are respectively fixedly mounted on both sides of the rotating plate (17), a plurality of rotating rods (25) are connected to the side of the connecting box (10) in a fixed-axis rotation manner, a V-shaped abutment (26) is fixedly connected to the outer surface of the rotating rod (25), the V-shaped abutment (26) includes a second inner side surface (27) and an inner side surface (28), and also includes a moving part arranged on the rotating rod (25); The movable component includes a mounting cavity (49), the end of the rotating rod (25) away from the V-shaped resist (26) is fixedly connected to a large gear (30), the inner wall of the mounting cavity (49) is fixedly connected to a connecting shaft, the outer surface of the connecting shaft is fixedly connected to a small gear (31), the inner wall of the mounting cavity (49) is fixedly connected to a limiting member (32), the outer surface of the limiting member (32) is slidably connected to a gear condition (33), the end of the gear condition (33) is fixedly connected to a shielding member (34), the inner wall of the mounting cavity (49) is fixedly connected to a trigger block (35), the trigger block (35) transmits a signal to the control panel via a wireless signal transmitter, and the control panel immediately controls the pump body assembly (36) to operate, and then inflates the airbag assembly (38) through the air pipe.

5. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 4, characterized in that: The position of the connecting block (24) corresponds to the through opening (18), and when the rotary 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). Multiple groups of magnetic components are fixedly connected to the side of the connection box (10), and the multiple groups of magnetic components are distributed in a ring array. Each group of magnetic components includes two magnetic components (29). The V-shaped resist (26) is made of metal and is used to magnetically lock the V-shaped resist (26) after the V-shaped resist (26) is deflected.

6. The burn and plastic surgery negative pressure wound debridement and healing device according to claim 5, characterized in that: The installation cavity (49) is opened inside the connection box (10), the moving parts are all arranged in the installation cavity (49), the large gear (30) is located inside the installation cavity (49), the large gear (30) is meshed with the small gear (31) for transmission connection, and the tooth groove portion of the tooth condition (33) is meshed with the tooth groove portion of the small gear (31); As the shielding member (34) moves linearly, the connecting port (19) is shielded. When the shielding member (34) completely shields the connecting port (19), the trigger portion of the trigger block 1 (35) is squeezed and triggered. The air pipe is used to connect the airbag assembly (38) with the pump body assembly (36), and 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 6, characterized in that: The sensing mechanism comprises: A 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), and a spring (41) is fixedly connected to the piston head (40) and the opposite side of the machine body (1). A distance sensing device (42) is provided in the connecting cylinder (39), and the distance sensing device (42) is 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 7, 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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