A partitioned negative pressure regulated burn plastic debridement healing promotion device and use method

Abstract

The application discloses a kind of partition negative pressure regulation's burn plastic debridement healing promotion device and use method, belong to burn processing field.A kind of partition negative pressure regulation's burn plastic debridement healing promotion device, including collection box, the two sides in the inside of collection box are separately provided with second movable base and first movable base, the second movable base upper end is provided with the second material collecting barrel of four recesses.The application solves the problem that burn plastic negative pressure wound debridement healing promotion device will continuously suck out the liquid flowed from the wound position of patient and collect when in use, after uniform collection, influence the judgment of medical staff to the degree of wound healing, the liquid flowed from the wound position of the present application is adsorbed and directly falls into rotatable second material collecting barrel, and the four evenly distributed recesses in rotating second material collecting barrel can collect the liquid flowed from the wound position in different time periods.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of burn treatment, in particular to a burn shaping debridement and healing promoting device with zoned negative pressure adjustment and a use method. BACKGROUND

[0002] The burn shaping debridement and healing promoting device is a medical device that promotes blood circulation and healing of burn shaping wounds through dynamic negative pressure technology. The device uses a controllable negative pressure environment to remove exudate, necrotic tissue and bacteria from the wound, reduces the risk of infection, reduces the wound area, accelerates the healing process, improves treatment effectiveness and patient comfort, and supports repeated installation and removal of dressings.

[0003] A burn shaping negative pressure wound debridement and healing promoting device is disclosed in Chinese Patent No. CN119367626B, which includes a dressing, a double-shaped connecting assembly, and a negative pressure suction unit. The negative pressure suction unit includes a base, a hollow column, a rotary drive mechanism, and a negative pressure machine. The base has an installation cavity. When the negative pressure machine is working, it will sequentially extract the air in each groove group on the dressing to form a negative pressure, causing the negative pressure area to enter a negative pressure state, promoting blood circulation in the wound. During this process, the negative pressure area enters the negative pressure state sequentially, so that the blood can be pushed and massaged dynamically as the groove groups enter the negative pressure state sequentially.

[0004] The burn shaping negative pressure wound debridement and healing promoting device of the above-mentioned patent continuously sucks out the liquid flowing from the patient's wound site and collects it. After uniform collection, the amount and state of the flowing liquid cannot be judged, affecting the judgment of the wound healing degree by medical personnel. SUMMARY

[0005] The present application aims to provide a burn shaping debridement and healing promoting device with zoned negative pressure adjustment and a use method. The liquid flowing from the wound site is adsorbed and directly falls into the second rotatable collection cylinder. Rotating the four evenly distributed grooves in the second collection cylinder can collect the liquid flowing from the wound site at different time periods, allowing the wound liquid at different time periods to be separately stored, facilitating subsequent medical personnel to judge the healing condition of the wound based on the collected liquid in the second collection cylinder, and solving the problems raised in the above background technology.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a partition negative pressure adjusting burn plastic debridement healing promotion device, comprising a collecting box, two sides of the inside of the collecting box are respectively provided with a second movable base and a first movable base, the upper end of the second movable base is provided with a second material collecting cylinder with four grooves, the lower end of the second material collecting cylinder is provided with a first transmission disc rotatably connected with the second movable base, the upper end of the first movable base is provided with a first material collecting cylinder, the first movable base and the second movable base are penetrated by a threaded rod, the rear end of the collecting box is provided with a sponge matched with a wound, the upper end of the outside of the sponge is wrapped with a first medical sterile dressing matched with the skin, four second suction cups are arranged around the first medical sterile dressing, rotation of the second material collecting cylinder can independently collect foreign matters absorbed by the skin, and independent collection can facilitate subsequent taking out and viewing.

[0007] Preferably, the outside of the second suction cup is matched with the first medical sterile dressing through a third medical sterile dressing, one end of the second suction cup is provided with a second air guide pipe, one end of the four second air guide pipes is provided with a third air guide pipe connection, the second suction cup on the side is matched and fixed through the third medical sterile dressing, and the gas of the negative pressure area cylinder can be supplemented from the position of the second suction cup.

[0008] Preferably, one end of the third air guide pipe is provided with a filter cylinder, the inside of the filter cylinder is penetrated and provided with a fourth air guide pipe at the lower end, and an adjusting valve is arranged between the second air guide pipe and the third air guide pipe.

[0009] Preferably, the control method of the adjusting valve comprises:

[0010] According to the negative pressure adjusting knowledge base, an adjusting basis set is extracted;

[0011] According to historical negative pressure adjusting process records, an extraction semantic set of the adjusting basis extracted from the wound image is obtained from the adjusting basis set;

[0012] According to the extraction semantic set, an extraction relationship of the adjusting basis extracted from the wound image is obtained;

[0013] According to the extraction relationship corresponding to each adjusting basis in the adjusting basis set, an adjusting basis extraction template is constructed;

[0014] A shooting image before debridement of a wound position is obtained;

[0015] According to the adjusting basis extraction template, an adjusting feature set of the target is obtained by adjusting feature extraction on the shooting image;

[0016] According to the target adjusting feature set and the negative pressure adjusting knowledge base, a recommended pressure distribution of the wound area is determined;

[0017] The recommended pressure distribution is analyzed, and a recommended pressure value set of each target partition is obtained;

[0018] The recommended pressure value set is used as a sub-simulation target corresponding to the local negative pressure space of each target partition, and local fluid simulation is performed in the local negative pressure space to determine the initial control parameters of the adjusting valve corresponding to each target partition;

[0019] Global fluid simulation is performed in the negative pressure space according to the initial control parameters to determine the sub-simulation results of each local negative pressure space and the fluid characteristics between the local negative pressure spaces;

[0020] Global fine-tuning of the initial control parameters is performed according to the deviation value of the sub-simulation results and the sub-simulation target and the fluid characteristics associated with the sub-simulation results;

[0021] The best control parameters are determined according to the global fluid simulation results after global fine-tuning;

[0022] The corresponding control of the adjusting valve is performed based on the best control parameters.

[0023] Preferably, the lower end of the filter cartridge stores a filtering liquid, and a heat conduction pipe is arranged in the middle of the lower end of the filter cartridge, and a heating rod is arranged in the heat conduction pipe. The liquid in the filter cartridge is used for filtering, and the heat conduction pipe can heat the filtered gas.

[0024] Preferably, a connecting block is welded at the lower end of the second aggregate cylinder, and the upper end of the first transmission disc is connected with the lower end of the second aggregate cylinder through a clamping groove. The second aggregate cylinder can be slidably installed on the upper end of the first transmission disc through the connecting block.

[0025] Preferably, a protective cover is arranged at the front end of the collecting box, and connecting rods are arranged at both sides of the interior of the protective cover. Nuts are arranged outside the connecting rods. The protective cover is bolted on the side of the collecting box, and the second aggregate cylinder and the first aggregate cylinder in the interior can be wrapped and protected.

[0026] Preferably, a main machine is arranged on one side of the outer wall of the collecting box, and a wound healing promotion system is built-in the interior of the main machine. The wound healing promotion system is composed of a timing module, a driving module, a position adjusting module, a massage module, and a heating module. The timing module is used for timing when the equipment is running, and the timing is used as a start signal of the driving module.

[0027] The driving module is used for driving the second aggregate cylinder, so that the motor at the lower end of the second aggregate cylinder rotates regularly, and the position of the second aggregate cylinder is switched.

[0028] The position adjusting module is used for driving the threaded rod to rotate, so as to adjust the positions of the second aggregate cylinder and the first aggregate cylinder.

[0029] The massage module is used to adjust the valve according to the setting, and the flow into the negative pressure area is controlled by the adjustment of the valve. The pressure change of different negative pressure positions realizes the massage of the wound position.

[0030] The heating module is used to drive the heating rod in the filter cartridge, and the heating rod is used to heat the liquid in the filter cartridge.

[0031] The burn plastic debridement and healing promoting device with zoned negative pressure regulation also performs the following operations:

[0032] The collected liquid in the second collection cylinder during the plurality of liquid collection periods is analyzed to generate a treatment suggestion, including:

[0033] A host-based timing module determines a plurality of liquid collection periods;

[0034] A multi-parameter analysis is performed on the collected liquid in the second collection cylinder for each liquid collection period to obtain a set of time series feature vectors;

[0035] A time series change rate matrix is constructed according to the set of time series feature vectors;

[0036] A wound healing index is calculated according to the time series change rate matrix based on a healing state evaluation model;

[0037] A wound healing state category is determined according to the wound healing index and a wound healing state category classification standard;

[0038] A treatment suggestion is generated based on the wound healing state category and output to a display interface of the host.

[0039] The method for using the burn plastic debridement and healing promoting device with zoned negative pressure regulation includes the following steps:

[0040] Step one, the sponge is attached to the wound position and is attached to the skin surface by the first medical sterile dressing. The first suction cup corresponds to the second air hole and is attached to the surface of the first medical sterile dressing by the second medical sterile dressing;

[0041] Step two, the second suction cup corresponds to the first air hole and is attached to the surface of the first medical sterile dressing by the third medical sterile dressing. The second air guide tube connected to one end of the second suction cup is connected by the third air guide tube;

[0042] Step three, one of the air pumps is connected to the first air guide tube and extracts the wound position covered by the sponge through the second liquid guide tube and the first liquid guide tube. The other air pump extracts external gas and sends it into the filter cartridge through the fourth air guide tube. After the liquid in the filter cartridge is filtered, the gas is transmitted through the third air guide tube. After the opening intensity of the adjustment valve is adjusted by the massage module, the gas in the third air guide tube is supplemented to the wound position covered by the sponge through the second air guide tube and the second suction cup;

[0043] Step four, the liquid foreign matter generated by the growth of the wound is transmitted to the inside of the collection box through the second liquid guide pipe after being sucked, and falls into the inside of the second material collecting cylinder, and the driving module is started by the timing module after timing, the driving module gives a starting signal to the lower end motor of the second transmission disc, and the second transmission disc drives the first transmission disc to rotate through the synchronous belt;

[0044] Step five, the heating rod is started and the position of the heat conducting pipe is heated, the heat conducting pipe heats the liquid in the filter cylinder, so that the gas supplemented into the sponge can increase the temperature of the wound position;

[0045] Step six, the positions of the second material collecting cylinder and the first material collecting cylinder are adjusted horizontally, the physiological saline penetrates the first medical sterile dressing and is embedded in the reserved pipe, the physiological saline can contact the wound position, the physiological saline is absorbed and enters the inside of the collection box along the first liquid guide pipe and the second liquid guide pipe, and finally the physiological saline falls into the first material collecting cylinder after position adjustment;

[0046] Step seven, the medical staff can rotate and detach the nut outside the connecting rod, detach the protective cover and expose the second material collecting cylinder, and directly slide the second material collecting cylinder from the upper end of the first transmission disc.

[0047] Compared with the prior art, the beneficial effects of the present application are:

[0048] 1、When the present application is attached to the wound position and the treatment is completed by forming negative pressure through adsorption, the liquid flowing at the wound position will be adsorbed and directly fall into the rotatable second material collecting cylinder, and the second material collecting cylinder can be driven to rotate by the lower end motor, and the four evenly distributed grooves in the second material collecting cylinder can collect the liquid flowing out of the wound position at different time periods, so that the wound liquid at different time periods can be separately collected, which is convenient for medical staff to judge the healing condition of the wound based on the collected liquid in the second material collecting cylinder, and the collected liquid flowing out of the skin surface can help medical staff to develop a subsequent treatment plan, so that the treatment plan is suitable for the current condition of the patient's wound.

[0049] 2、After the first suction cup provides stable and uniform adsorption force, the four second suction cups present different degrees of gas supplement through the opening degree of the adjusting valve, when the different negative pressure zones are formed by the gas supplement, the gas flowing in the second gas guide pipe is filtered by the liquid stored in the filter cylinder, and at the same time of filtering, the heating rod heats the liquid used for filtering, so that the liquid can filter and heat the gas at the same time, so that low-temperature gas supplement and contact with the wound position are avoided, the capillary vessels of the wound position are expanded by the contact of the gas at a certain temperature, the blood flow is increased, at the same time, the metabolic waste is removed faster, and at a proper temperature, the proliferation and migration speed of repair cells such as fibroblasts and epithelial cells will be accelerated, the synthesis of collagen will also be increased, the oxygenation of the wound surface can be improved, and a more favorable microenvironment for repair is created. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 It is the schematic diagram of the overall external structure of the present application;

[0051] Figure 2 It is the sectional view of the internal structure of the filter cartridge of the present application;

[0052] Figure 3 It is the exploded view of the sponge installation position of the present application;

[0053] Figure 4 It is the schematic diagram of the protective cover installation track of the present application;

[0054] Figure 5 It is the schematic diagram of the threaded rod transmission structure of the present application;

[0055] Figure 6 It is the schematic diagram of the wound healing system process of the present application.

[0056] In the figure: 1, collection box; 2, main machine; 3, first medical sterile dressing; 4, second medical sterile dressing; 5, first suction cup; 6, first liquid guide pipe; 7, first gas guide pipe; 8, third medical sterile dressing; 9, second suction cup; 10, second gas guide pipe; 11, regulating valve; 12, third gas guide pipe; 14, filter cartridge; 15, fourth gas guide pipe; 16, heat pipe; 17, heating rod; 18, sponge; 19, reserved pipe; 20, first air hole; 21, second air hole; 22, protective cover; 23, connecting rod; 24, first material collecting cylinder; 25, second material collecting cylinder; 26, first movable base; 27, first transmission disc; 28, second transmission disc; 29, second movable base; 30, connecting block; 31, synchronous belt; 32, threaded rod; 34, second liquid guide pipe. DETAILED DESCRIPTION

[0057] The present application will be further described below in combination with specific embodiments.

[0058] As shown in Figure 1 , Figure 4 and Figure 5 , the burn plastic surgery debridement healing device of the present application, including the collection box 1, one side of the inside of the collection box 1 is provided with the second movable base 29, the other side of the inside of the collection box 1 is provided with the first movable base 26, the upper end of the second movable base 29 is provided with the second material collecting cylinder 25, the second material collecting cylinder 25 can receive the wound liquid foreign matter generated in the adsorption process.

[0059] The interior of the second collecting cylinder 25 is provided with four grooves which are evenly distributed and can collect and store wound foreign matters of different time periods as the second collecting cylinder 25 rotates. In order to drive the second collecting cylinder 25, the lower end of the second collecting cylinder 25 is provided with a first transmission disc 27, one side of the first transmission disc 27 is provided with a second transmission disc 28, and the second transmission disc 28 and the first transmission disc 27 are both rotationally connected inside the second movable base 29. The second transmission disc 28 and the first transmission disc 27 are transmissionally connected through a synchronous belt 31. The transmission of the synchronous belt 31 after being supported by the second movable base 29 can make the second collecting cylinder 25 rotate when needed, and the rotation can complete the adjustment of the storage position.

[0060] In order to clean the wound and separately collect physiological saline, so as to avoid dilution of the wound discharge liquid caused by physiological saline, the upper end of the first movable base 26 is provided with a first collecting cylinder 24. The first movable base 26 and the second movable base 29 are penetrated by a threaded rod 32, and the outer part of the threaded rod 32 is threadedly matched with the second movable base 29 and the first movable base 26. The rotation of the threaded rod 32 can drive the first movable base 26 and the second movable base 29 to move laterally, which can adjust the positions of the second collecting cylinder 25 and the first collecting cylinder 24. Physiological saline can be filled into the first collecting cylinder 24 when the physiological saline is delivered, so as to avoid mixing of the physiological saline and the wound discharge liquid.

[0061] On the other hand, in order to facilitate the disassembly and cleaning of the first collecting cylinder 24 and the second collecting cylinder 25, the lower end of the second collecting cylinder 25 is provided with a connecting block 30 which is fixedly welded with the lower end of the second collecting cylinder 25. The upper end of the first transmission disc 27 is snap-fit connected with the lower end of the second collecting cylinder 25. The connecting block 30 is rectangular. The rectangular connecting block 30 facilitates the direct sliding installation of the second collecting cylinder 25 on the upper end of the first transmission disc 27. The lower end of the first collecting cylinder 24 is slidingly connected with the upper end of the first movable base 26. The first collecting cylinder 24 can be directly slidingly installed inside the first movable base 26.

[0062] Further, the front end of the collecting box 1 is provided with a protective cover 22. Two connecting rods 23 are penetratingly arranged inside the protective cover 22. The outer parts of the two connecting rods 23 are provided with nuts. The rotation of the nuts outside the connecting rods 23 can facilitate the fixation of the protective cover 22, and can facilitate the fixation of the second collecting cylinder 25 and the first collecting cylinder 24 inside.

[0063] As Figure 3As shown, the rear end of the collection box 1 is provided with a sponge 18 that fits the wound, the upper end of the sponge 18 outside is wrapped with a first medical sterile dressing 3 that fits the skin, the upper end of the first medical sterile dressing 3 is provided with a first suction cup 5, and four second suction cups 9 are arranged around the first medical sterile dressing 3, which are used to supplement gas to the sponge 18 covering position, and the first suction cup 5 is used to extract the sponge 18 position, and the negative pressure is achieved by extraction.

[0064] It is worth mentioning that the first medical sterile dressing 3 is provided with a second air hole 21 corresponding to the first suction cup 5, and a first air hole 20 is arranged between the first medical sterile dressing 3 and the second suction cup 9, the first air hole 20 and the second air hole 21 are cut on the surface of the first medical sterile dressing 3 by scissors during installation, the outside of the first suction cup 5 is attached to the first medical sterile dressing 3 through the second medical sterile dressing 4, and the outside of the second suction cup 9 is attached to the first medical sterile dressing 3 through the third medical sterile dressing 8, and the attachment of the first medical sterile dressing 3, the second medical sterile dressing 4 and the third medical sterile dressing 8 can improve the sealing degree, facilitate the extraction of gas and the formation of negative pressure area.

[0065] In this embodiment, in order to collect the liquid extracted from the skin, the upper end of the first suction cup 5 is provided with a first liquid guide pipe 6, the upper end of the collection box 1 is provided with a second liquid guide pipe 34, the second liquid guide pipe 34 is sealingly connected between the first liquid guide pipe 6, one side of the collection box 1 is provided with a first air guide pipe 7, and when the suction force is generated after the first air guide pipe 7 is connected to the fan, the gas is extracted from the first suction cup 5 and the sponge 18 position in sequence after being connected to the collection box 1, the second liquid guide pipe 34 and the first liquid guide pipe 6.

[0066] For the adjustment of the zoned negative pressure, one end of the second suction cup 9 is provided with a second air guide pipe 10, and one end of the four second air guide pipes 10 is provided with a third air guide pipe 12 connection, as shown in Figure 2 As shown, one end of the third air guide pipe 12 is provided with a filter cartridge 14, and a fourth air guide pipe 15 is penetratingly arranged at the lower end inside the filter cartridge 14, after the fourth air guide pipe 15 transmits the gas into the filter cartridge 14, the gas is transmitted by the third air guide pipe 12 and is shunted and transmitted by the second air guide pipe 10, in order to realize different pressures in different areas, the second air guide pipe 10 and the third air guide pipe 12 are provided with an adjusting valve 11, the opening condition of the adjusting valve 11 can adjust the amount of gas transmitted from the third air guide pipe 12 to the inside of the second air guide pipe 10, and the negative pressure state of different positions can be controlled.

[0067] In order to facilitate the filtration and heating of the gas transmitted by the fourth air guide pipe 15, the lower end of the filter cartridge 14 is stored with a filtering liquid, and the middle recess of the lower end of the filter cartridge 14 is provided with a heat conduction pipe 16. The inside of the heat conduction pipe 16 is provided with a heating rod 17. After the heating rod 17 heats the heat conduction pipe 16, the heat of the heat conduction pipe 16 can heat the liquid reserved in the inside of the filter cartridge 14, so that the liquid can directly heat the contacted gas.

[0068] In order to facilitate the subsequent injection of physiological saline, the inside of the sponge 18 is reserved with a reserved pipe 19. The pipe of the subsequent physiological saline can be injected into the position of the sponge 18 by piercing the first medical sterile dressing 3.

[0069] One side of the outer wall of the collection box 1 is provided with a host 2. As shown in Figure 6 The inside of the host 2 is built-in with a wound healing system. The wound healing system is composed of a timing module, a driving module, a position adjusting module, a massage module and a heating module. The timing module is used for timing when the equipment is running. The timing is used as a starting signal of the driving module. After the time reaches the value set by the timing module, the driving module is given a starting signal by the timing module, so as to realize the automation of the whole system operation, without frequent manual intervention of medical staff, to ensure that the treatment and monitoring actions are carried out at accurate time intervals, the data has comparability, and the treatment has consistency. Different time strategies can be set according to different healing stages.

[0070] The driving module is used for driving the second collecting cylinder 25, so that the motor at the lower end of the second collecting cylinder 25 rotates regularly, the position of the second collecting cylinder 25 is switched, the liquid generated by the skin is understood to the wound recovery state for later reference, and after receiving the starting signal of the timing module, the driving module drives the motor to rotate once according to the set rotating direction and rotating angle, so as to provide the wound exudate samples arranged in time sequence for clinic. By comparing the changes of color, turbidity and amount, it becomes an objective basis for judging healing trend or early infection signs, and physically prevents the mixing of liquids in different time periods.

[0071] The position adjusting module is used for driving the threaded rod 32 to rotate, adjusting the positions of the second collecting cylinder 25 and the first collecting cylinder 24, avoiding the mixing of physiological saline and the liquid generated by the skin to affect the subsequent judgment, and realizing high-precision linear displacement through threaded rod transmission, so as to ensure the accurate container docking and prevent the liquid from splashing out.

[0072] The massage module is used for adjusting the regulating valve 11 according to the setting, controlling the flow into the negative pressure area through the adjustment of the regulating valve 11, realizing the massage of the wound position through the pressure change of different negative pressure positions, promoting the blood circulation around the wound through artificial massage simulation, reducing edema, accelerating the removal of metabolic waste, and preventing the premature adhesion of the newly generated granulation tissue and the dressing through dynamic pressure.

[0073] The heating module is used to drive the heating rod 17 in the filter cartridge 14, and the heating rod 17 is used to heat the liquid in the filter cartridge 14. Certain heat can improve the recovery speed of the wound, and the warm humidified gas can maintain the temperature and humidity of the microenvironment of the wound surface, prevent the cell from drying and necrosis, and significantly improve the healing speed.

[0074] Working principle: the sponge 18 is attached to the wound site and is attached to the skin surface by the first medical sterile dressing 3, the first medical sterile dressing 3 is cut by scissors to form the second air hole 21 and the first air hole 20 on the surface of the first medical sterile dressing 3, the first suction cup 5 corresponds to the second air hole 21 and is attached to the surface of the first medical sterile dressing 3 by the second medical sterile dressing 4, the second suction cup 9 corresponds to the first air hole 20 and is attached to the surface of the first medical sterile dressing 3 by the third medical sterile dressing 8, one end of the second suction cup 9 is connected to the second air duct 10 which is connected by the third air duct 12, the filter cartridge 14 is pre-filled with filtered liquid inside, one end of the third air duct 12 is inserted into the inside of the filter cartridge 14, the second material collecting cylinder 25 is slidably installed on the upper end of the first transmission disc 27 through the connecting block 30 at the lower end, one of the air pumps is connected to the first air duct 7 and extracts the wound site covered by the sponge 18 through the second liquid duct 34 and the first liquid duct 6, at the same time, the other air pump extracts external gas and sends it into the inside of the filter cartridge 14 through the fourth air duct 15, after the liquid in the inside of the filter cartridge 14 is filtered, the gas is transmitted through the third air duct 12, after the opening intensity of the adjusting valve 11 is adjusted by the massage module, the gas in the third air duct 12 is supplemented to the wound site covered by the sponge 18 through the second air duct 10 and the second suction cup 9, the liquid foreign matter generated during the growth of the wound is sucked and transmitted to the inside of the collecting box 1 through the second liquid duct 34 and falls into the inside of the second material collecting cylinder 25, after the wound site is continuously extracted at the position of the second liquid duct 34, the timing module is timed and the driving module is started, the driving module gives a start signal to the motor at the lower end of the second transmission disc 28, the second transmission disc 28 drives the first transmission disc 27 to rotate through the synchronous belt 31, the rotation of the first transmission disc 27 adjusts the angle of the second material collecting cylinder 25 at the upper end, so that the adsorbed liquid can be stored at different positions in the second material collecting cylinder 25, when the gas is supplemented to the wound site through the third air duct 12, the heating rod 17 is started and heats the position of the heat conducting pipe 16, the heat conducting pipe 16 heats the liquid in the inside of the filter cartridge 14, thereby heating the liquid transmitted in the third air duct 12, so that the gas supplemented into the sponge 18 can increase the temperature of the wound site, when physiological saline needs to be injected, the rotation of the threaded rod 32 drives the second movable base 29 and the first movable base 26 to move horizontally, the position of the second material collecting cylinder 25 and the first material collecting cylinder 24 is adjusted horizontally, the physiological saline penetrates the first medical sterile dressing 3 and is embedded in the reserved tube 19 position, so that the physiological saline can contact the wound site, the physiological saline is absorbed and enters the inside of the collecting box 1 along the first liquid duct 6 and the second liquid duct 34, finally the physiological saline falls into the first material collecting cylinder 24 after the position adjustment, the medical staff can rotate and detach the nut outside the connecting rod 23, detach the protective cover 22 and expose the second material collecting cylinder 25, the second material collecting cylinder 25 can be directly taken off from the upper end of the first transmission disc 27, the medical staff can check the collected liquid in the second material collecting cylinder 25,The second aggregate cylinder 25 can also be directly cleaned.

[0075] In one embodiment, the control method of the regulating valve 11 comprises:

[0076] According to the negative pressure regulation knowledge base, a regulation basis set is extracted.

[0077] In this embodiment, the negative pressure regulation knowledge base is a database storing negative pressure treatment rules, including one-to-one corresponding wound morphology, negative pressure parameters and healing effects, etc. The regulation basis set is a set of formulation basis for formulating the best negative pressure parameters extracted from the negative pressure regulation knowledge base, for example: wound area and infection degree.

[0078] According to the historical negative pressure regulation process record, the extraction semantic set of the regulation basis from the wound image is obtained.

[0079] In this embodiment, the historical negative pressure regulation process record is the process record of the doctor's negative pressure regulation according to the wound morphology in history, including: the wound morphology semantics described by the doctor, the negative pressure regulation scheme formulated by the doctor. The extraction semantic set is a set of semantics of the regulation basis extracted from the wound image, for example: the regulation basis is the infection degree, and the extraction semantic set is a set of semantics related to the wound infection degree described by the doctor.

[0080] According to the extraction semantic set, the extraction relationship of the regulation basis from the wound image is obtained.

[0081] In this embodiment, the extraction relationship is: the relationship of determining the corresponding regulation basis according to the wound image description, for example: the relationship of determining the infection degree according to the wound color and humidity.

[0082] According to the corresponding extraction relationship of each regulation basis in the regulation basis set, a regulation basis extraction template is constructed.

[0083] In this embodiment, the regulation basis extraction template is a standardized framework for the wound image to extract the regulation basis, which is used to automatically extract the wound area, infection degree and other negative pressure regulation basis from the wound image.

[0084] The shooting image before the debridement of the wound position is obtained.

[0085] In this embodiment, the shooting image is an image pre-shooted by a camera before the debridement of the wound position.

[0086] According to the regulation basis extraction template, the regulation feature extraction is performed on the shooting image to obtain a target regulation feature set.

[0087] In this embodiment, the target adjustment feature set is a set of target adjustment features extracted from the captured image according to the adjustment basis extraction template. The target adjustment features are the adjustment features actually extracted from the captured image. For example, the area of necrotic tissue is 16 cm², and the exudate grade is moderate.

[0088] Determine the recommended pressure distribution of the wound area according to the target adjustment feature set and the negative pressure adjustment knowledge base.

[0089] In this embodiment, the recommended pressure distribution is: a distribution map of ideal negative pressure values calculated for different partitions of the wound.

[0090] Analyze the recommended pressure distribution to obtain the recommended pressure value set for each target partition.

[0091] In this embodiment, each target partition is: the wound partition controlled by the negative pressure control partition corresponding to each second air duct 10. The recommended pressure value set is: a set of specific negative pressure values corresponding to each point position of each target partition.

[0092] Taking the recommended pressure value set as the sub-simulation target corresponding to the respective local negative pressure spaces of each target partition, perform local fluid simulation in the local negative pressure space to determine the initial control parameters of the control valve 11 corresponding to each target partition.

[0093] [[ID=I8]]In this embodiment, the local negative pressure space is four local spaces evenly divided in the negative pressure space in the medical sterile dressing 3 in a "field" shape, and each local negative pressure space corresponds to a second air duct 10. When determining the initial control parameters of the control valve 11 corresponding to each target partition, first determine the preselected initial control parameters (all control parameters of the control valve 11), and use the preselected initial control parameter with the smallest difference between the corresponding sub-simulation result and the sub-simulation target as the initial control parameter.

[0094] Perform global fluid simulation in the negative pressure space according to the initial control parameters to determine the fluid characteristics between the sub-simulation results of each local negative pressure space and the local negative pressure spaces.

[0095] ]>In this embodiment, the sub-simulation result is the negative pressure simulation result of each local negative pressure space when performing global fluid simulation of each local negative pressure space based on the initial control parameters. The fluid characteristics between the local negative pressure spaces are the pressure uniformity and the air flow velocity difference between the local negative pressure spaces.

[0096] Perform global fine-tuning of the initial control parameters according to the deviation value between the sub-simulation result and the sub-simulation target and the fluid characteristics associated with the sub-simulation result.

[0097] In this embodiment, the deviation value is the negative pressure deviation of each point between the sub-simulation result and the sub-simulation target. The fluid feature associated with the sub-simulation result refers to the fluid feature between the local negative pressure space corresponding to the sub-simulation result and its adjacent local negative pressure space. The global fine-tuning refers to small-scale optimization of all regulating valve parameters based on the deviation value and the associated fluid feature to reduce the overall error; in the actual device, all partitions are connected through the gas path, and there is mutual interference (for example: a high negative pressure partition will "steal" the gas flow of the adjacent low negative pressure partition, causing insufficient pressure in the adjacent partition). Therefore, the fluid feature reveals the root cause of the deviation (for example: partition A sucks too strongly, causing unstable pressure in partition B), so the regulating valve parameters are optimized in combination with the deviation value and the associated fluid feature, and during optimization, instead of simply correcting the error of a single partition, all regulating valve parameters are optimized to minimize the pressure deviation of each partition and minimize harmful fluid features (such as severe pressure fluctuations).

[0098] According to the global fluid simulation result after global fine-tuning, the best control parameter is determined.

[0099] In this embodiment, the best control parameter refers to the final setting of the regulating valve 11 after fine-tuning and global simulation verification.

[0100] Based on the best control parameter, the corresponding control of the regulating valve 11 is performed.

[0101] The working principle and beneficial effects of the above technical solution are as follows:

[0102] The present application extracts a set of adjustment basis from the negative pressure adjustment knowledge base; introduces historical negative pressure adjustment process records, obtains the extracted relationship of the adjustment basis extracted from the wound image according to the extracted semantic set of the adjustment basis extracted from the wound image; all extracted relationships are summarized to construct an adjustment basis extraction template, which can automatically analyze and identify the adjustment basis from the wound image, and is more intelligent.

[0103] The adjustment basis extraction template is applied to the target adjustment feature set extracted from the photographed image; according to the target adjustment feature set and the negative pressure adjustment knowledge base, the recommended pressure distribution of the wound area is automatically matched and determined.

[0104] After obtaining the recommended pressure distribution, to determine the appropriate regulating valve parameter, simulation can be performed first; during simulation, to improve the determination efficiency of the regulating valve parameter, the recommended pressure value set of each target partition is obtained first, the partition simulation of each target partition is performed, and the initial control parameter of the regulating valve 11 is obtained.

[0105] However, in the actual device, all partitions are connected through the air path, and there is mutual interference, so there will be a deviation value when performing global fluid simulation in the negative pressure space according to the initial control parameters. The fluid characteristics reveal the fundamental reason for the deviation, and therefore, all the regulating valve parameters are slightly optimized based on the deviation value and the associated fluid characteristics to reduce the overall error. In this way, the determination efficiency of the optimal control parameters can be greatly improved, and the negative pressure control accuracy can be improved.

[0106] The burn plastic surgery debridement and healing promotion device provided by the embodiment of the present application also performs the following operations:

[0107] The collected liquid in the second collecting cylinder 25 in the plurality of liquid collection periods is analyzed to generate a treatment suggestion, including:

[0108] Based on the timing module of the host 2, the plurality of liquid collection periods are determined , wherein the total number of periods is greater than or equal to 4, is the duration of the th collection period.

[0109] The collected liquid in the second collecting cylinder 25 in each liquid collection period is analyzed to obtain a time sequence feature vector set , wherein , represents a transpose operation; is the liquid volume, measured by the groove liquid level sensor, in milliliters; is the turbidity value, calculated by the transmitted light intensity ratio, in NTU; is the pH value, measured by the micro pH electrode; is the color index, calculated by RGB image analysis, , wherein , , are the average values of the red, green, and blue channels of the liquid image, respectively.

[0110] According to the time sequence feature vector set, a time sequence change rate matrix is constructed ; wherein the matrix element of the time sequence change rate matrix represents the 24-hour normalized change rate of the th feature between adjacent periods.

[0111] Based on the healing state evaluation model, the wound healing index is calculated according to the time sequence change rate matrix:

[0112] ;

[0113] wherein, is a sigmoid activation function; is a transpose of , is a model weight vector; is a bias term; is a flattening operation on the time series rate of change matrix The training method of the healing state evaluation model is as follows: supervised learning is performed on a labeled clinical data set (such as historical patient wound exudate time series features and corresponding expert evaluation of healing state), and a gradient descent type optimization algorithm is used to jointly optimize the weight vector and the bias term to make the wound healing index output by the model as close to the true label as possible.

[0114] According to the wound healing index and the wound healing state category grading standard, the wound healing state category is determined.

[0115] wherein the wound healing state category grading standard is a preset standard for determining the wound healing state category according to the wound healing index, for example: the wound healing state category is infection aggravation; the wound healing state category is healing retardation; the wound healing state category is normal healing; the wound healing state category is accelerated healing.

[0116] Based on the wound healing state category, a treatment suggestion is generated and output to the display interface of the host 2; the treatment suggestion includes one or more of negative pressure parameter adjustment suggestion, debridement frequency suggestion, and antibiotic use suggestion.

[0117] The working principle and beneficial effects of the above technical solution are as follows:

[0118] The present application provides objective healing evaluation through time series data analysis, solves the limitations of traditional methods relying on subjective observation and experience, and provides data support for precision medicine. The following is a specific example:

[0119] Background: a patient with a degree II burn of about 15 cm² is treated using the device. The host 2 sets 4 collection periods, and the groove position of the second collection cylinder 25 is switched every 6 hours.

[0120] Period 1 (0-6 hours): the second collection cylinder 25 collects liquid in groove 1, with a volume , turbidity , pH value , and color index .

[0121] Period 2 (6-12 hours): the second collection cylinder 25 collects liquid in groove 2, with a volume , turbidity , pH , color index .

[0122] Period 3 (12-18 hours): Second collection cylinder 25 recess 3 collects liquid, volume , turbidity , pH , color index .

[0123] Period 4 (18-24 hours): Second collection cylinder 25 recess 4 collects liquid, volume , turbidity , pH , color index .

[0124] Constructs a time series rate of change matrix ;

[0125] Flattens the time series rate of change matrix into a 12-dimensional vector;

[0126] Applies a pre-trained wound healing status assessment model (weight vector and bias trained on 500 clinical data) to the 12-dimensional vector;

[0127] Computes a linear output , applies a sigmoid activation function to compute a wound healing index , and determines a wound healing status class as normal healing.

[0128] It has to be noted that the terms "first", "second", "third", etc. as used in this text are used only for distinguishing between two entities or actions from each other, without necessarily requiring or implying any actual relationship or order between these entities or actions. Furthermore, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0129] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application.

Claims

1. A device for burn plastic debridement and healing promotion with zoned negative pressure regulation, comprising a collection box (1), characterized in that, The second movable base (29) is provided with a second material collecting cylinder (25) with four grooves at the upper end, and the lower end of the second material collecting cylinder (25) is provided with a first transmission disc (27) rotatably connected with the second movable base (29); the upper end of the first movable base (26) is provided with a first material collecting cylinder (24); the first movable base (26) and the second movable base (29) are penetrated by a threaded rod (32); the rear end of the collecting box (1) is provided with a sponge (18) fitted to the wound; the upper end of the sponge (18) is wrapped with a first medical sterile dressing (3) fitted to the skin; four second suction cups (9) are arranged around the first medical sterile dressing (3); the outside of the second suction cup (9) is fitted to the first medical sterile dressing (3) through a third medical sterile dressing (8); one end of the second suction cup (9) is provided with a second air duct (10); one end of the four second air ducts (10) is provided with a third air duct (12) connection; one end of the third air duct (12) is provided with a filter cylinder (14); the lower end of the inside of the filter cylinder (14) is penetrated and provided with a fourth air duct (15); the second air duct (10) and the third air duct (12) are provided with an adjusting valve (11); The upper end of the first medical sterile dressing (3) is provided with a first suction cup (5); the four second suction cups (9) are used to supplement the gas to the covering position of the sponge (18), and the first suction cup (5) is used to extract the position of the sponge (18), so as to realize the negative pressure by extraction; The opening condition of the adjusting valve (11) can adjust the amount of gas transmission from the third air duct (12) to the inside of the second air duct (10), so as to control the negative pressure state of different positions.

2. The zoned negative pressure regulated burn plastic debridement wound healing device of claim 1, wherein, The control method of the adjusting valve (11) comprises: According to the negative pressure adjustment knowledge base, the adjustment basis set is extracted; According to the historical negative pressure adjustment process record, the extraction semantic set of the adjustment basis extracted from the wound image is obtained; According to the extraction semantic set, the extraction relationship of the adjustment basis extracted from the wound image is obtained; According to the extraction relationship corresponding to each adjustment basis in the adjustment basis set, the adjustment basis extraction template is constructed; An image is obtained before the debridement of the wound position; According to the adjustment feature extraction template, the target adjustment feature set is obtained by adjusting the characteristics of the image; According to the target adjustment feature set and the negative pressure adjustment knowledge base, the recommended pressure distribution of the wound area is determined; The recommended pressure value set of each target partition is obtained by analyzing the recommended pressure distribution; The recommended pressure value set is used as the corresponding local negative pressure space of each target partition, and the local fluid simulation is carried out in the local negative pressure space to determine the initial control parameter of the adjusting valve (11) corresponding to each target partition; According to the initial control parameter, the global fluid simulation is carried out in the negative pressure space to determine the sub-simulation result of each local negative pressure space and the fluid characteristics between the local negative pressure spaces. According to the deviation value of the sub-simulation result and the sub-simulation target and the fluid characteristics associated with the sub-simulation result, the initial control parameters are globally fine-tuned; According to the globally fine-tuned global fluid simulation result, the optimal control parameters are determined; Based on the optimal control parameters, the corresponding control of the regulating valve (11) is performed.

3. A zoned negative pressure regulated burn and plastic surgery debridement and wound healing device according to claim 2, wherein, The lower end of the filter cartridge (14) stores a filtering liquid, and a heat conducting pipe (16) is arranged in the middle of the lower end of the filter cartridge (14), and a heating rod (17) is arranged in the heat conducting pipe (16).

4. The zoned negative pressure regulated burn plastic debridement wound healing device of claim 3, wherein, The lower end of the second aggregate cylinder (25) is welded with a connecting block (30), and the upper end of the first transmission disc (27) is connected with the lower end of the second aggregate cylinder (25) through a clamping groove.

5. A zoned negative pressure regulated burn and plastic surgery debridement and wound healing device according to claim 4, wherein, The front end of the collection box (1) is provided with a protective cover (22), and connecting rods (23) are arranged on both sides of the inside of the protective cover (22), and nuts are arranged on the outside of the connecting rods (23).

6. The zoned negative pressure regulated burn plastic debridement wound healing device of claim 5, wherein, The side of the outer wall of the collection box (1) is provided with a host (2), and a wound healing promotion system is built in the inside of the host (2), and the wound healing promotion system is composed of a timing module, a driving module, a position adjustment module, a massage module and a heating module, wherein: the timing module is used for timing when the equipment is running, and the timing is used as a start signal of the driving module; The driving module is used for driving the second aggregate cylinder (25), so that the motor at the lower end of the second aggregate cylinder (25) rotates regularly, and the position of the second aggregate cylinder (25) is switched; The position adjustment module is used for driving the threaded rod (32) to rotate, and adjusting the positions of the second aggregate cylinder (25) and the first aggregate cylinder (24); The massage module is used for adjusting the regulating valve (11) according to the setting, controlling the amount of gas flowing into the negative pressure area through the adjustment of the regulating valve (11), and realizing the massage of the wound position through the pressure change of different negative pressure positions; The heating module is used for driving the heating rod (17) in the filter cartridge (14), and driving the heating rod (17) to heat the liquid in the filter cartridge (14).

7. A zoned negative pressure regulated burn and plastic surgery debridement and wound healing device according to claim 6, wherein, The following operations are also performed: The collected liquid in the second aggregate cylinder (25) in multiple liquid collection periods is analyzed, and a treatment suggestion is generated, including: Based on the timing module of the host (2), multiple liquid collection periods are determined; The collected liquid in the second aggregate cylinder (25) in each liquid collection period is analyzed, and a time sequence feature vector set is obtained; According to the time sequence feature vector set, a time sequence change rate matrix is constructed; Based on the healing state evaluation model, the wound healing index is calculated according to the time sequence change rate matrix; According to the wound healing index and the wound healing state classification standard, the wound healing state category is determined; Based on the wound healing state category, a treatment suggestion is generated and output to the display interface of the host (2).

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