A pressure injury debridement device

Abstract

The present invention belongs to the technical field of medical care equipment. A pressure injury debridement device disclosed by the present invention includes a splash guard, a waste liquid tank disposed on one side of the splash guard, a first water tank fixedly provided on the side wall of the waste liquid tank, and a second water tank fixedly provided on one side of the waste liquid tank; this device integrates cleaning, removing necrotic tissue, and waste liquid collection, improves the debridement efficiency, the adjustable height and width adjustment unit adapts to different wounds, ensuring the flexibility of operation, the effective waste liquid treatment and crushing unit reduces the risk of environmental pollution and pipeline blockage, the simple operation process and negative pressure adsorption design improve the usability and patient comfort, overcomes the technical problems of the prior art that it cannot effectively remove necrotic tissue according to the wound condition and will cause environmental pollution. At the same time, the thorough disinfection step prevents wound infection, saves medical resources as a whole, and significantly improves the treatment effect of pressure injury and the quality of patient care.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical care equipment, and particularly relates to a pressure injury debridement device. Background Art

[0002] Pressure injury, also known as bedsore, refers to a disease in which local tissue damage is caused by long-term pressure, friction or shear force acting on the skin and soft tissues. It is common in patients who are bedridden for a long time, use a wheelchair, and the elderly. Pressure injury not only brings pain to patients, but may also cause infection, seriously affecting the quality of life. In the treatment process, debridement is a key link, which can effectively remove necrotic tissue and promote wound healing. However, there are some problems with the existing debridement methods:

[0003] 1. It often only has a cleaning function and cannot effectively clean necrotic tissue;

[0004] 2. It cannot effectively collect the waste liquid and impurities generated by cleaning, causing environmental pollution;

[0005] 3. It cannot adjust the debridement range of the device according to the depth and size of the wound;

[0006] Therefore, there is a need for a pressure injury debridement device that can clean wounds, remove necrotic tissue, avoid environmental pollution and adapt to the wound conditions to solve these problems. Summary of the Invention

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present device integrates cleaning, removing necrotic tissue, and waste liquid collection, improving the debridement efficiency. The adjustable height and width adjustment units adapt to different wounds, ensuring the flexibility of operation. The effective waste liquid treatment and crushing unit reduces the risk of environmental pollution and pipeline blockage. The simple operation process and negative pressure adsorption design enhance the usability and patient comfort. It overcomes the technical problems of the prior art that it cannot effectively remove necrotic tissue according to the wound conditions and will cause environmental pollution. At the same time, the thorough disinfection step prevents wound infection, saves medical resources as a whole, and significantly improves the treatment effect of pressure injury and the quality of patient care.

[0008] The technical solution adopted by the present invention is as follows: A pressure injury debridement device includes a splash guard, a waste liquid tank disposed on one side of the splash guard, a first water tank fixedly provided on the side wall of the waste liquid tank, and a second water tank fixedly provided on one side of the waste liquid tank. It further includes a debridement and flushing assembly provided on the splash guard, an adsorption and drainage assembly provided on the splash guard, and a driving assembly provided on one side of the splash guard; the debridement and flushing assembly includes a height adjustment unit and a width adjustment unit, the width adjustment unit is disposed below the height adjustment unit, and the width adjustment unit includes a moving block slidably and rotatably provided on the upper wall of the splash guard, a second telescopic sleeve slidably provided in the moving block, a first telescopic sleeve slidably provided in the second telescopic sleeve, and support rods rotatably provided in a circular array at the lower end of the moving block with the central axis of the first telescopic sleeve as the axis; the driving assembly includes a driving unit and a mode conversion unit, and the driving unit and the mode conversion unit are connected by pipelines.

[0009] As a preferred technical solution of this scheme, the height adjustment unit includes a first installation box fixedly provided on the top wall of the splash guard, a second installation box fixedly provided on the top wall of the first installation box, a worm rotatably provided on the inner wall of the second installation box, a height adjustment knob fixedly provided at one end of the worm, a threaded sleeve rotatably provided on the top wall of the first installation box, a worm gear fixedly provided on the top wall of the threaded sleeve, an impeller cover slidably provided on the inner wall of the first installation box, a first impeller rotatably provided in the impeller cover, a connecting block fixedly provided on the top wall of the impeller cover, a threaded rod fixedly provided on the top wall of the connecting block, and a spring sleeved on the outside of the first telescopic sleeve. The worm and the worm gear are meshed and connected, the threaded sleeve and the threaded rod are threadedly connected, the first impeller is fixedly connected to the first telescopic sleeve, one end of the spring is fixedly connected to the second telescopic sleeve, and the other end of the spring is fixedly connected to the first telescopic sleeve.

[0010] As a preferred technical solution of this scheme, the driving unit includes an air pump fixedly provided on the top wall of the waste liquid tank, a second intake pipe fixedly provided at the intake end of the air pump, a first transmission gear snap-fitted and rotatably sleeved on the surface of the second intake pipe, and a third peristaltic pump fixedly provided on the top wall of the waste liquid tank. The output end of the third peristaltic pump penetrates the top wall of the waste liquid tank and extends into the bottom of the waste liquid tank, and the first transmission gear is in transmission connection with the third peristaltic pump.

[0011] As a preferred technical solution of this scheme, the mode conversion unit includes a first outlet pipe fixedly provided at the outlet end of the air pump, a second outlet pipe fixedly provided at the outlet end of the air pump, and a conversion valve fixedly provided on the top wall of the first water tank. The conversion valve corresponds to the first outlet pipe and the second outlet pipe.

[0012] As a preferred technical solution of this solution, a transmission gear two is rotatably clamped on the surface of the first air outlet pipe, a transmission gear three is rotatably clamped on the surface of the second air outlet pipe, a peristaltic pump two is fixedly arranged on the top wall of the first water tank, the input end of the peristaltic pump two extends into the bottom of the first water tank, a peristaltic pump one is fixedly arranged on the top wall of the second water tank, the input end of the peristaltic pump one extends into the bottom of the second water tank, the peristaltic pump two is in transmission connection with the transmission gear two, and the peristaltic pump one is in transmission connection with the transmission gear three.

[0013] As a preferred technical solution of this solution, the adsorption and liquid discharge assembly includes a second water inlet pipe fixedly arranged on the side wall of the splash guard, a crushing knife rotatably arranged on the inner side wall of one end of the second water inlet pipe, a water guide rubber pad fixedly arranged on one end of the second water inlet pipe, adsorption air holes opened inside the splash guard, a third air inlet pipe fixedly arranged on the side wall of the second water inlet pipe, a fourth air inlet pipe fixedly arranged on the side wall of the third air inlet pipe, and an impeller two rotatably arranged on the inner wall of the third air inlet pipe. The impeller two is coaxially and fixedly connected with the crushing knife. The third air inlet pipe is in through connection with the fourth air inlet pipe. Air holes are arranged in an array in the adsorption rubber ring, and the air holes are in through connection with the adsorption air holes.

[0014] As a preferred technical solution of this solution, a second water outlet pipe is arranged between the connecting block and the impeller cover. A first water outlet pipe is fixedly arranged on the side wall of the splash guard. One end of the first water outlet pipe is in through connection with the inside of the splash guard. A fourth water outlet pipe is arranged between the other end of the first water outlet pipe and the output end of the peristaltic pump two. A third water outlet pipe is arranged between the peristaltic pump one and the impeller cover. A first water inlet pipe is arranged between the input end of the peristaltic pump three and the second water inlet pipe. A first air inlet pipe is arranged between the second air inlet pipe and the splash guard. The first air inlet pipe is in through connection with the adsorption air holes. A fifth air inlet pipe is arranged between the first air inlet pipe and the third air inlet pipe.

[0015] As a preferred technical solution of this solution, a locking hole is opened on the side wall of the second telescopic sleeve. A locking gear is slidably arranged in the locking hole. A spur gear is fixedly arranged on the side wall of the locking gear. A width adjustment knob is fixedly arranged on the side wall of the spur gear. A rack is fixedly arranged on the top wall of the moving block. The rack is meshed with the spur gear.

[0016] As a preferred technical solution of this solution, a width adjuster is arranged between the second telescopic sleeve and the moving block. A medical sponge is detachably and fixedly arranged at the bottom of the second telescopic sleeve. Spray holes are opened at the bottom of the second telescopic sleeve.

[0017] As a preferred technical solution of this solution, the width adjuster includes a locking gear, a spur gear, a width adjustment knob and a rack. A locking hole is opened on the side wall of the second telescopic sleeve. A locking gear is slidably arranged in the locking hole. A spur gear is fixedly arranged on the side wall of the locking gear. A width adjustment knob is fixedly arranged on the side wall of the spur gear. A rack is fixedly arranged on the top wall of the moving block. The rack is meshed with the spur gear.

[0018] As another preferred technical solution of this solution, the width adjuster includes an electric telescopic rod, the electric telescopic rod is fixedly arranged on the top wall of the moving block, and the output end of the electric telescopic rod is fixedly connected to the second telescopic sleeve.

[0019] After adopting the above structure, the beneficial effects of the present invention are as follows:

[0020] 1. This device integrates cleaning, removing necrotic tissue, and waste liquid collection, and can complete the multi-step requirements of debridement at one time, improving the debridement efficiency. Through the design of the height adjustment unit and the width adjustment unit, the device can be adjusted according to the depth and size of the wound, adapting to different types of pressure injuries. Moreover, through the splash-proof cover and negative pressure adsorption, the device can effectively collect and dispose of the waste liquid and impurities generated during the debridement process, avoiding environmental pollution;

[0021] 2. After the cleaning is completed, it can be switched to disinfectant spraying to further clean and disinfect the wound, which helps to prevent infection;

[0022] 3. The design of the crushing unit can pre-treat the necrotic tissue with a large volume to prevent these tissue blocks from blocking the waste liquid collection system;

[0023] 4. Debriding by using a medical sponge to rub and spray normal saline can reduce secondary damage to the wound;

[0024] 5. Through the integrated and automated design, this device simplifies the debridement operation process and reduces the operation difficulty and technical requirements of medical staff. Description of the Drawings

[0025] The drawings are used to provide a further understanding of this solution, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention.

[0026] Figure 1 It is a schematic diagram of the overall structure of a pressure injury debridement device of the present invention;

[0027] Figure 2 It is a schematic diagram of the connection structure of the air pump and the waste liquid tank of the present invention;

[0028] Figure 3 It is a schematic diagram of the connection structure of the first installation box and the second installation box of the present invention;

[0029] Figure 4 It is a cross-sectional view inside the splash-proof cover of the present invention;

[0030] Figure 5 It is Figure 4 a partial enlarged view of the local structure at A in

[0031] Figure 6 It isFigure 4 Enlarged view of the local structure at B in

[0032] Figure 7 is Figure 4 Enlarged view of the local structure at C in

[0033] Figure 8 Schematic diagram of the connection structure of the intake pipe three and the intake pipe four;

[0034] Figure 9 is Figure 8 Enlarged view of the local structure at D in

[0035] Figure 10 Schematic diagram of the connection structure of the intake pipe two and the intake pipe three in the present invention;

[0036] Figure 11 is Figure 10 Enlarged view of the local structure at E in

[0037] Figure 12 Schematic diagram of the pipeline connection of the present invention;

[0038] Figure 13 Schematic diagram of the connection structure of the electric telescopic rod and the telescopic sleeve two.

[0039] In the drawings: 1. Splash guard;

[0040] 2. Debridement and irrigation assembly, 21. Installation box one, 22. Installation box two, 23. Water outlet pipe one, 24. Worm, 25. Worm gear, 26. Threaded sleeve, 27. Threaded rod, 28. Impeller cover, 29. Impeller one, 210. Telescopic sleeve one, 211. Spring, 212. Telescopic sleeve two, 213. Rack, 214. Straight gear, 215. Width adjustment knob, 216. Moving block, 217. Support rod, 218. Medical sponge, 219. Spraying holes, 220. Height adjustment knob, 221. Water outlet pipe two, 222. Locking gear, 223. Electric telescopic rod, 224. Connecting block;

[0041] 3. Driving assembly, 31. Peristaltic pump one, 32. Peristaltic pump two, 33. Peristaltic pump three, 34. Driving gear one, 35. Air pump, 36. Waste liquid tank, 37. Water tank one, 38. Conversion valve, 39. Water tank two, 310. Intake pipe one, 311. Outlet pipe one, 312. Outlet pipe two, 313. Driving gear two, 314. Driving gear three, 315. Intake pipe two, 316. Water outlet pipe three, 317. Water outlet pipe four, 318. Intake pipe one;

[0042] 4. Adsorption and drainage component, 41. Second water inlet pipe, 42. Crushing knife, 43. Water guide rubber pad, 44. Adsorption air holes, 45. Adsorption rubber ring, 46. Third air inlet pipe, 47. Second impeller, 48. Fourth air inlet pipe, 49. Fifth air inlet pipe;

[0043] 5. Height adjustment unit; 6. Width adjustment unit; 7. Driving unit; 8. Mode conversion unit. Specific implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0046] Embodiment 1, as Figures 1-12 shown, the pressure injury debridement device of this embodiment includes a splash guard 1, a waste liquid tank 36 arranged on one side of the splash guard 1, a first water tank 37 fixedly arranged on the side wall of the waste liquid tank 36, and a second water tank 39 fixedly arranged on one side of the waste liquid tank 36. It also includes a debridement and flushing component 2 arranged on the splash guard 1, an adsorption and drainage component 4 arranged on the splash guard 1, and a driving component 3 arranged on one side of the splash guard 1; the debridement and flushing component 2 includes a height adjustment unit 5 and a width adjustment unit 6. The width adjustment unit 6 is arranged below the height adjustment unit 5. The width adjustment unit 6 includes a moving block 216 that slides and rotates on the upper wall of the splash guard 1, a second telescopic sleeve 212 that slides in the moving block 216, a first telescopic sleeve 210 that slides in the second telescopic sleeve 212, and a support rod 217 that rotates in a circular array around the central axis of the first telescopic sleeve 210 at the lower end of the moving block 216; the driving component 3 includes a driving unit 7 and a mode conversion unit 8, and the driving unit 7 and the mode conversion unit 8 are connected by pipelines.

[0047] Among them, the height adjustment unit 5 includes a first mounting box 21 fixedly arranged on the top wall of the splash guard 1, a second mounting box 22 fixedly arranged on the top wall of the first mounting box 21, a worm 24 rotatably arranged on the inner wall of the second mounting box 22, a height adjustment knob 220 fixedly arranged at one end of the worm 24, a threaded sleeve 26 rotatably arranged on the top wall of the first mounting box 21, a worm gear 25 fixedly arranged on the top wall of the threaded sleeve 26, an impeller cover 28 slidably arranged on the inner wall of the first mounting box 21, a first impeller 29 rotatably arranged in the impeller cover 28, a connecting block 224 fixedly arranged on the top wall of the impeller cover 28, a threaded rod 27 fixedly arranged on the top wall of the connecting block 224, and a spring 211 sleeved outside the first telescopic sleeve 210. The worm 24 and the worm gear 25 are meshed and connected, the threaded sleeve 26 and the threaded rod 27 are threadedly connected, the first impeller 29 is fixedly connected to the first telescopic sleeve 210, one end of the spring 211 is fixedly connected to the second telescopic sleeve 212, and the other end of the spring 211 is fixedly connected to the first telescopic sleeve 210.

[0048] Among them, the driving unit 7 includes an air pump 35 fixedly arranged on the top wall of the waste liquid tank 36, a second intake pipe 315 fixedly arranged at the intake end of the air pump 35, a first transmission gear 34 rotatably sleeved on the surface of the second intake pipe 315 in a snap-fit manner, and a third peristaltic pump 33 fixedly arranged on the top wall of the waste liquid tank 36. The output end of the third peristaltic pump 33 penetrates the top wall of the waste liquid tank 36 and extends into the bottom of the waste liquid tank 36. The first transmission gear 34 is in transmission connection with the third peristaltic pump 33.

[0049] Among them, the mode conversion unit 8 includes a first outlet pipe 311 fixedly arranged at the outlet end of the air pump 35, a second outlet pipe 312 fixedly arranged at the outlet end of the air pump 35, and a conversion valve 38 fixedly arranged on the top wall of the first water tank 37. The conversion valve 38 corresponds to the first outlet pipe 311 and the second outlet pipe 312.

[0050] Among them, a second transmission gear 313 is rotatably sleeved on the surface of the first outlet pipe 311 in a snap-fit manner, a third transmission gear 314 is rotatably sleeved on the surface of the second outlet pipe 312 in a snap-fit manner. A second peristaltic pump 32 is fixedly arranged on the top wall of the first water tank 37. The input end of the second peristaltic pump 32 extends into the bottom of the first water tank 37. A first peristaltic pump 31 is fixedly arranged on the top wall of the second water tank 39. The input end of the first peristaltic pump 31 extends into the bottom of the second water tank 39. The second peristaltic pump 32 is in transmission connection with the second transmission gear 313, and the first peristaltic pump 31 is in transmission connection with the third transmission gear 314.

[0051] Among them, the adsorption and drainage assembly 4 includes a second water inlet pipe 41 fixedly arranged on the side wall of the splash guard 1, a crushing knife 42 rotatably arranged on the inner side wall of one end of the second water inlet pipe 41, a water guide rubber pad 43 fixedly arranged at one end of the second water inlet pipe 41, an adsorption air hole 44 opened inside the splash guard 1, a third air inlet pipe 46 fixedly arranged on the side wall of the second water inlet pipe 41, a fourth air inlet pipe 48 fixedly arranged on the side wall of the third air inlet pipe 46, and an impeller 47 rotatably arranged on the inner wall of the third air inlet pipe 46. The impeller 47 is coaxially and fixedly connected to the crushing knife 42. The third air inlet pipe 46 is connected to the fourth air inlet pipe 48 in a through manner. The adsorption rubber ring 45 is provided with air holes in an array, and the air holes are communicated with the adsorption air holes 44.

[0052] Among them, a second water outlet pipe 221 is arranged between the connecting block 224 and the impeller cover 28. The side wall of the splash guard 1 is fixedly provided with a first water outlet pipe 23. One end of the first water outlet pipe 23 is communicated with the inside of the splash guard 1. A fourth water outlet pipe 317 is arranged between the other end of the first water outlet pipe 23 and the output end of the peristaltic pump 32. A third water outlet pipe 316 is arranged between the peristaltic pump 31 and the impeller cover 28. A first water inlet pipe 318 is arranged between the input end of the peristaltic pump 33 and the second water inlet pipe 41. A first air inlet pipe 315 is arranged between the second air inlet pipe 315 and the splash guard 1. The first air inlet pipe 310 is communicated with the adsorption air holes 44. A fifth air inlet pipe 49 is arranged between the first air inlet pipe 310 and the third air inlet pipe 46.

[0053] Among them, a width adjuster is arranged between the second telescopic sleeve 212 and the moving block 216. The bottom of the second telescopic sleeve 212 is detachably and fixedly provided with a medical sponge 218. The bottom of the second telescopic sleeve 212 is provided with spray holes 219.

[0054] Among them, the width adjuster includes a locking gear 222, a spur gear 214, a width adjustment knob 215, and a rack 213. A locking hole is opened on the side wall of the second telescopic sleeve 212. The locking gear 222 is slidably arranged in the locking hole. The spur gear 214 is fixedly arranged on the side wall of the locking gear 222. The width adjustment knob 215 is fixedly arranged on the side wall of the spur gear 214. The rack 213 is fixedly arranged on the top wall of the moving block 216. The rack 213 and the spur gear 214 are meshed and connected.

[0055] During specific use: Inject normal saline into water tank two 39, inject disinfectant into water tank one 37, cover the splash guard 1 on the pressure injury that needs debridement. Initially, the switching valve 38 blocks the first air outlet pipe 311 and does not block the second air outlet pipe 312. Start the air pump 35. The intake end of the air pump 35 sucks air. Through the first intake pipe 310 and the adsorption air holes 44, a negative pressure is generated between the adsorption rubber ring 45 and the skin, causing the splash guard 1 to be adsorbed on the skin. The air outlet end of the air pump 35 discharges air, which drives the third transmission gear 314 to rotate via the second air outlet pipe 312. The third transmission gear 314 drives the first peristaltic pump 31 to extract saline from the water tank two 39 and inject it into the impeller cover 28. The water flow drives the impeller cover 28 to rotate and flow into the first telescopic sleeve 210 via the second water outlet pipe 221, and then into the second telescopic sleeve 212, and then flows out through the medical sponge 218 from the spray holes 219. The pressure of the water stretches the spring 211, and the downward movement of the first telescopic sleeve 210 and the second telescopic sleeve 212 causes the medical sponge 218 to contact the wound. The rotating first impeller 29 drives the first telescopic sleeve 210 to rotate, which in turn drives the second telescopic sleeve 212 to rotate. The rotation of the second telescopic sleeve 212 drives the medical sponge 218 to rotate, thereby removing impurities such as necrotic tissue at the wound. The soft characteristics of the medical sponge 218 and the wetting of the wound by the sprayed saline can prevent the medical sponge 218 from causing secondary damage to the wound, and the sprayed saline can also clean the wound;

[0056] After the wound cleaning is completed, toggle the switching valve 38 so that the switching valve 38 blocks the second air outlet pipe 312 and does not block the first air outlet pipe 311. The air outlet end of the air pump 35 drives the second transmission gear 313 to rotate via the first air outlet pipe 311. The second transmission gear 313 drives the second peristaltic pump 32 to extract disinfectant from the water tank one 37 and inject it into the first water outlet pipe 23. The disinfectant sprays out from the first water outlet pipe 23 to further clean and disinfect the cleaned wound;

[0057] The intake end of the air pump 35 sucks air from the second intake pipe 315, driving the first transmission gear 34 to rotate. The rotation of the first transmission gear 34 drives the third peristaltic pump 33 to extract the waste liquid and impurities generated during the debridement process from the inside of the splash guard 1 through the second intake pipe 41. The intake end of the air pump 35 can also intake air through the first intake pipe 310 and then via the fourth intake pipe 48. The intake of air through the fourth intake pipe 48 drives the second impeller 47 to rotate. The rotation of the second impeller 47 drives the crushing knife 42 to rotate, thereby crushing larger necrotic tissue to prevent it from blocking the pipeline;

[0058] Rotate the height adjustment knob 220 to drive the worm 24 to rotate. The rotation of the worm 24 drives the worm gear 25 to rotate, which in turn drives the threaded sleeve 26 to rotate. The rotation of the threaded sleeve 26 can drive the threaded rod 27, thereby driving the impeller cover 28 to move up and down inside the splash guard 1. The up and down movement of the impeller cover 28 can adjust the working height of the impeller cover 28, enabling the device to adapt to wounds of different depths;

[0059] Pull the width adjustment knob 215 to disengage the locking gear 222 from the second telescopic sleeve 212, so that the spur gear 214 can rotate. Rotate the width adjustment knob 215 to drive the spur gear 214 to rotate. The rotation of the spur gear 214 can drive the locking gear 222 to move downward. The movement of the locking gear 222 drives the moving block 216 to move. The movement of the moving block 216 can drive the support rod 217 to expand outwards. The support rod 217 drives the medical sponge 218 to expand outwards, so that the device can adapt to wounds of different sizes. After the adjustment is completed, pushing the width adjustment knob 215 can make the locking gear 222 engage with the second telescopic sleeve 212 to lock the moving block 216.

[0060] Embodiment 2, as Figure 6 and 13 shown. The difference between this embodiment and Embodiment 1 is that in this embodiment, the width adjuster includes an electric telescopic rod 223, and the electric telescopic rod 223 is fixedly arranged on the top wall of the moving block 216, and the output end of the electric telescopic rod 223 is fixedly connected to the second telescopic sleeve 212.

[0061] During specific use, drive the moving block 216 to move by adjusting the extending length of the output end of the electric telescopic rod 223. The movement of the moving block 216 can drive the support rod 217 to expand outwards. The support rod 217 drives the medical sponge 218 to expand outwards, so that the device can adapt to wounds of different sizes.

[0062] In short, if those of ordinary skill in the art are inspired by it and without departing from the purpose of the present invention creation, without creative design, structures and embodiments similar to the technical solution shall fall within the protection scope of the present invention.

Claims

1. A pressure injury debridement device, comprising a splash guard (1), a waste liquid tank (36) arranged on one side of the splash guard (1), a first water tank (37) fixedly arranged on the side wall of the waste liquid tank (36), and a second water tank (39) fixedly arranged on one side of the waste liquid tank (36), characterized in that: It further includes a debridement and flushing assembly (2) arranged on the splash guard (1), an adsorption and drainage assembly (4) arranged on the splash guard (1), and a driving assembly (3) arranged on one side of the splash guard (1); The debridement and flushing assembly (2) includes a height adjustment unit (5) and a width adjustment unit (6). The width adjustment unit (6) is arranged below the height adjustment unit (5). The width adjustment unit (6) includes a moving block (216) that slides and rotates on the upper wall of the splash guard (1), a second telescopic sleeve (212) that slides in the moving block (216), a first telescopic sleeve (210) that slides in the second telescopic sleeve (212), and support rods (217) that are rotatably arranged in a circular array at the lower end of the moving block (216) with the central axis of the first telescopic sleeve (210) as the axis; The driving assembly (3) includes a driving unit (7) and a mode conversion unit (8). The driving unit (7) and the mode conversion unit (8) are connected by pipes; The height adjustment unit (5) includes a first installation box (21) fixedly arranged on the top wall of the splash guard (1), a second installation box (22) fixedly arranged on the top wall of the first installation box (21), a worm (24) rotatably arranged on the inner wall of the second installation box (22), a height adjustment knob (220) fixedly arranged at one end of the worm (24), a threaded sleeve (26) rotatably arranged on the top wall of the first installation box (21), a worm gear (25) fixedly arranged on the top wall of the threaded sleeve (26), an impeller cover (28) slidably arranged on the inner wall of the first installation box (21), a first impeller (29) rotatably arranged in the impeller cover (28), a connecting block (224) fixedly arranged on the top wall of the impeller cover (28), a threaded rod (27) fixedly arranged on the top wall of the connecting block (224), and a spring (211) sleeved on the outer side of the first telescopic sleeve (210). The worm (24) and the worm gear (25) are meshed and connected. The threaded sleeve (26) and the threaded rod (27) are threadedly connected. The first impeller (29) is fixedly connected to the first telescopic sleeve (210). One end of the spring (211) is fixedly connected to the second telescopic sleeve (212), and the other end of the spring (211) is fixedly connected to the first telescopic sleeve (210); The driving unit (7) includes an air pump (35) fixedly arranged on the top wall of the waste liquid tank (36), a second intake pipe (315) fixedly arranged at the intake end of the air pump (35), a first transmission gear (34) that is snap-fitted and rotatably sleeved on the surface of the second intake pipe (315), and a third peristaltic pump (33) fixedly arranged on the top wall of the waste liquid tank (36). The output end of the third peristaltic pump (33) penetrates through the top wall of the waste liquid tank (36) and extends into the bottom of the waste liquid tank (36). The first transmission gear (34) is in transmission connection with the third peristaltic pump (33); The mode conversion unit (8) includes an outlet pipe one (311) fixedly arranged at the outlet end of the air pump (35), an outlet pipe two (312) fixedly arranged at the outlet end of the air pump (35), and a conversion valve (38) fixedly arranged on the top wall of the first water tank (37). The conversion valve (38) corresponds to the outlet pipe one (311) and the outlet pipe two (312).

2. The pressure injury debridement device according to claim 1, wherein: A transmission gear two (313) is rotatably clamped on the surface of the air outlet pipe one (311), a transmission gear three (314) is rotatably clamped on the surface of the air outlet pipe two (312), a peristaltic pump two (32) is fixedly arranged on the top wall of the water tank one (37), the input end of the peristaltic pump two (32) extends into the bottom of the water tank one (37), a peristaltic pump one (31) is fixedly arranged on the top wall of the water tank two (39), the input end of the peristaltic pump one (31) extends into the bottom of the water tank two (39), the peristaltic pump two (32) is in transmission connection with the transmission gear two (313), and the peristaltic pump one (31) is in transmission connection with the transmission gear three (314).

3. The pressure injury debridement device according to claim 2, wherein: The adsorption and liquid discharge assembly (4) includes a water inlet pipe two (41) fixedly arranged on the side wall of the splash-proof cover (1), a crushing knife (42) rotatably arranged on the inner side wall of one end of the water inlet pipe two (41), a water guide rubber pad (43) fixedly arranged at one end of the water inlet pipe two (41), an adsorption air hole (44) opened inside the splash-proof cover (1), an air inlet pipe three (46) fixedly arranged on the side wall of the water inlet pipe two (41), an air inlet pipe four (48) fixedly arranged on the side wall of the air inlet pipe three (46), and an impeller two (47) rotatably arranged on the inner wall of the air inlet pipe three (46). The impeller two (47) is coaxially and fixedly connected with the crushing knife (42). The air inlet pipe three (46) is connected to the air inlet pipe four (48) in a through manner. An adsorption rubber ring (45) is fixedly arranged at the bottom of the splash-proof cover (1). Air holes are arranged in an array in the adsorption rubber ring (45), and the air holes are in through connection with the adsorption air holes (44).

4. The pressure injury debridement device according to claim 3, wherein: A water outlet pipe two (221) is arranged between the connecting block (224) and the impeller cover (28). An air outlet pipe one (23) is fixedly arranged on the side wall of the splash-proof cover (1). One end of the air outlet pipe one (23) is in through connection with the inside of the splash-proof cover (1). A water outlet pipe four (317) is arranged between the other end of the air outlet pipe one (23) and the output end of the peristaltic pump two (32). A water outlet pipe three (316) is arranged between the peristaltic pump one (31) and the impeller cover (28). A water inlet pipe one (318) is arranged between the input end of the peristaltic pump three (33) and the water inlet pipe two (41). An air inlet pipe one (310) is arranged between the air inlet pipe two (315) and the splash-proof cover (1). The air inlet pipe one (310) is in through connection with the adsorption air holes (44). An air inlet pipe five (49) is arranged between the air inlet pipe one (310) and the air inlet pipe three (46).

5. The pressure injury debridement device according to claim 4, wherein: A width adjuster is arranged between the telescopic sleeve two (212) and the moving block (216). A medical sponge (218) is detachably and fixedly arranged at the bottom of the telescopic sleeve two (212). Spray holes (219) are opened at the bottom of the telescopic sleeve two (212).

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