Pressure injury debridement device

Abstract

The invention belongs to the technical field of medical care equipment, and discloses a pressure injury debridement device which comprises a splash guard, a waste liquid tank arranged on one side of the splash guard, a first water tank fixedly arranged on the side wall of the waste liquid tank and a second water tank fixedly arranged on one side of the waste liquid tank. The device integrates cleaning, necrotic tissue removal and waste liquid collection, the debridement efficiency is improved, the adjustable height adjusting and width adjusting unit adapts to different wounds, the operation flexibility is ensured, the risk of environmental pollution and pipeline blockage is reduced through the effective waste liquid treatment and smashing unit, and the debridement efficiency is improved. The simple and convenient operation process and the negative pressure adsorption design improve the use convenience and the comfort level of a patient, the technical problems that in the prior art, necrotic tissue cannot be effectively removed according to the wound condition, and environmental pollution is caused are solved, meanwhile, wound infection is prevented through the thorough disinfection step, medical resources are saved on the whole, and the medical treatment cost is reduced. And the treatment effect of the stress injury and the nursing quality of the patient are obviously improved.

Description

Technical Field

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

[0002] Pressure injury, also known as pressure sore, refers to a disease in which local tissue damage occurs due to prolonged pressure, friction or shear force acting on the skin and soft tissue. It is common in patients who are bedridden for a long time, in wheelchairs and the elderly. Pressure injury not only causes pain to patients, but may also cause infection and seriously affect 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 existing debridement methods: 1. They often only have a cleaning function and cannot effectively clean necrotic tissue; 2. It is impossible to effectively collect the waste liquid and impurities generated by cleaning, causing environmental pollution; 3. The debridement range of the device cannot be adjusted according to the depth and size of the wound; Therefore, there is a need for a pressure injury debridement device that can clean wounds, remove necrotic tissue, avoid environmental pollution and adapt to wound conditions to solve these problems. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the present device integrates cleaning, removal of necrotic tissue and waste liquid collection, thereby improving the debridement efficiency. The adjustable height and width adjustment units can adapt to different wounds, ensuring the flexibility of operation. The effective waste liquid treatment and crushing units reduce environmental pollution and the risk of pipeline blockage. The simple operation process and negative pressure adsorption design improve the ease of use and patient comfort, overcoming the technical problems that the existing technology 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 overall, and significantly improves the treatment effect of pressure injuries and the quality of patient care.

[0004] The technical solution adopted by the present invention is as follows: a pressure injury debridement device, comprising a splash shield, a waste liquid tank arranged on one side of the splash shield, a water tank 1 fixedly arranged on the side wall of the waste liquid tank, and a water tank 2 fixedly arranged on one side of the waste liquid tank, and also comprising a debridement and flushing component arranged on the splash shield, an adsorption and drainage component arranged on the splash shield, and a driving component arranged on one side of the splash shield; the debridement and flushing component comprises a height adjustment unit and a width adjustment unit, the width adjustment unit is arranged below the height adjustment unit, the width adjustment unit comprises a moving block slidably and rotatably arranged on the upper wall of the splash shield, a telescopic sleeve 2 slidably arranged in the moving block, a telescopic sleeve 1 slidably arranged in the telescopic sleeve 2, and a support rod rotatably arranged at the lower end of the moving block in a circular array with the central axis of the telescopic sleeve 1 as the axis; the driving component comprises a driving unit and a mode conversion unit, and the driving unit and the mode conversion unit are connected by pipelines.

[0005] As a preferred technical solution of the present scheme, the height adjustment unit includes an installation box 1 fixed on the top wall of the splash shield, an installation box 2 fixed on the top wall of the installation box 1, a worm rotatably arranged on the inner wall of the installation box 2, a height adjustment knob fixed at one end of the worm, a threaded sleeve rotatably arranged on the top wall of the installation box 1, a worm wheel fixed on the top wall of the threaded sleeve, an impeller cover slidably arranged on the inner wall of the installation box 1, an impeller 1 rotatably arranged in the impeller cover, a connecting block fixed on the top wall of the impeller cover, a threaded rod fixed on the top wall of the connecting block, and a spring sleeved on the outside of the telescopic sleeve 1, the worm and the worm wheel are meshingly connected, the threaded sleeve and the threaded rod are threadedly connected, the impeller 1 is fixedly connected to the telescopic sleeve 1, one end of the spring is fixedly connected to the telescopic sleeve 2, and the other end of the spring is fixedly connected to the telescopic sleeve 1.

[0006] As a preferred technical solution of the present scheme, the driving unit includes an air pump fixedly mounted on the top wall of the waste liquid tank, an air intake pipe 2 fixedly mounted on the air intake end of the air pump, a transmission gear 1 which is rotatably sleeved on the surface of the air intake pipe 2, and a peristaltic pump 3 fixedly mounted on the top wall of the waste liquid tank. The output end of the peristaltic pump 3 passes through the top wall of the waste liquid tank and extends into the bottom of the waste liquid tank, and the transmission gear 1 is connected to the peristaltic pump 3 for transmission.

[0007] As a preferred technical solution of the present scheme, the mode conversion unit includes an air outlet pipe 1 fixedly arranged at the air outlet end of the air pump, an air outlet pipe 2 fixedly arranged at the air outlet end of the air pump, and a conversion valve fixedly arranged on the top wall of a water tank, and the conversion valve corresponds to air outlet pipe 1 and air outlet pipe 2.

[0008] As a preferred technical solution of the present scheme, the surface of the air outlet pipe 1 is provided with a transmission gear 2 in a snap-fitting and rotatable manner, the surface of the air outlet pipe 2 is provided with a transmission gear 3 in a snap-fitting and rotatable manner, a peristaltic pump 2 is fixedly provided on the top wall of the water tank 1, the input end of the peristaltic pump 2 extends into the bottom of the water tank 1, a peristaltic pump 1 is fixedly provided on the top wall of the water tank 2, the input end of the peristaltic pump 1 extends into the bottom of the water tank 2, the peristaltic pump 2 is transmission connected to the transmission gear 2, and the peristaltic pump 1 is transmission connected to the transmission gear 3.

[0009] As a preferred technical solution of the present scheme, the adsorption and drainage component includes a water inlet pipe 2 fixedly arranged on the side wall of the splash shield, a crushing knife rotatably arranged on the inner wall of one end of the water inlet pipe 2, a water guide rubber pad fixedly arranged at one end of the water inlet pipe 2, adsorption air holes opened inside the splash shield, an air inlet pipe 3 fixedly arranged on the side wall of the water inlet pipe 2, an air inlet pipe 4 fixedly arranged on the side wall of the air inlet pipe 3 and an impeller 2 rotatably arranged on the inner wall of the air inlet pipe 3, the impeller 2 is coaxially fixedly connected with the crushing knife, the air inlet pipe 3 is through-connected with the air inlet pipe 4, the adsorption rubber ring is provided with air holes in an array, and the air holes are through-connected with the adsorption air holes.

[0010] As a preferred technical solution of the present scheme, a water outlet pipe 2 is provided between the connecting block and the impeller cover, a water outlet pipe 1 is fixedly provided on the side wall of the splash shield, one end of the water outlet pipe 1 is connected with the inside of the splash shield, a water outlet pipe 4 is provided between the other end of the water outlet pipe 1 and the output end of the peristaltic pump 2, a water outlet pipe 3 is provided between the peristaltic pump 1 and the impeller cover, a water inlet pipe 1 is provided between the input end of the peristaltic pump 3 and the water inlet pipe 2, an air inlet pipe 1 is provided between the air inlet pipe 2 and the splash shield, the air inlet pipe 1 is connected with the adsorption air hole, and an air inlet pipe 5 is provided between the air inlet pipe 1 and the air inlet pipe 3.

[0011] As a preferred technical solution of the present invention, locking holes are provided on the two side walls of the telescopic sleeve, a locking gear is slidably provided in the locking hole, a spur gear is fixedly provided on the side wall of the locking gear, a width adjustment knob is fixedly provided on the side wall of the spur gear, a rack is fixedly provided on the top wall of the moving block, and the rack and the spur gear are meshingly connected.

[0012] As a preferred technical solution of this scheme, a width adjuster is provided between the telescopic sleeve 2 and the moving block, a medical sponge is detachably fixed on the bottom of the telescopic sleeve 2, and a spray hole is opened on the bottom of the telescopic sleeve 2.

[0013] As a preferred technical solution of the present scheme, the width adjuster includes a locking gear, a spur gear, a width adjustment knob and a rack. The two side walls of the telescopic sleeve are provided with locking holes, and a locking gear is slidably arranged in the locking hole. A spur gear is fixedly arranged on the side wall of the locking gear, and 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, and the rack and the spur gear are meshingly connected.

[0014] As another preferred technical solution of the present invention, the width adjuster comprises an electric telescopic rod, which is fixed to the top wall of the moving block, and the output end of the electric telescopic rod is fixedly connected to the second telescopic sleeve.

[0015] After adopting the above structure, the beneficial effects of the present invention are as follows: 1. The device integrates cleaning, removal of necrotic tissue and waste liquid collection, and can complete the multi-step debridement requirements at one time, thereby 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 to adapt to different types of pressure injuries. The device can effectively collect and dispose of waste liquid and impurities generated during the debridement process through the splash shield and negative pressure adsorption, thus avoiding environmental pollution; 2. After cleaning, you can switch to disinfectant spray to further clean and disinfect the wound, which helps prevent infection; 3. The design of the crushing unit can pre-process large necrotic tissues to prevent these tissue blocks from blocking the waste liquid collection system; 4. Using medical sponges to rub and spray physiological saline to clean the wound can reduce secondary damage to the wound; 5. Through integrated and automated design, the device simplifies the debridement process and reduces the operational difficulty and technical requirements for medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present 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 of the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of a pressure injury debridement device of the present invention; Figure 2 It is a schematic diagram of the connection structure between the air pump and the waste liquid tank in the present invention; Figure 3 It is a schematic diagram of the connection structure of the installation box 1 and the installation box 2 in the present invention; Figure 4 It is a cross-sectional view of the interior of the splash shield in the present invention; Figure 5 for Figure 4 A magnified view of the local structure at point A in the middle; Figure 6 for Figure 4 A magnified view of the local structure at B in the middle; Figure 7 for Figure 4 A magnified view of the local structure at C in the middle; Figure 8 is a schematic diagram of the connection structure of the intake pipe three and the intake pipe four; Fig. 9 for Figure 8 A magnified view of the local structure at D in the middle; Fig.10 Schematic diagram of the connection structure of the second intake pipe and the third intake pipe in the present invention; Fig.11 for Fig.10 A magnified view of the local structure at E in the middle; Fig.12 A schematic diagram of pipeline connection of the present invention; Fig.13 Schematic diagram of the connection structure between the electric telescopic rod and the telescopic sleeve 2.

[0018] In the accompanying drawings: 1. Splash shield; 2. Debridement and irrigation assembly, 21. Installation box 1, 22. Installation box 2, 23. Water outlet pipe 1, 24. Worm, 25. Worm gear, 26. Threaded sleeve, 27. Threaded rod, 28. Impeller cover, 29. Impeller 1, 210. Telescopic sleeve 1, 211. Spring, 212. Telescopic sleeve 2, 213. Rack, 214. Spur gear, 215. Width adjustment knob, 216. Moving block, 217. Support rod, 218. Medical sponge, 219. Spray hole, 220. Height adjustment knob, 221. Water outlet pipe 2, 222. Locking gear, 223. Electric telescopic rod, 224. Connecting block; 3. Drive assembly, 31. Peristaltic pump 1, 32. Peristaltic pump 2, 33. Peristaltic pump 3, 34. Transmission gear 1, 35. Air pump, 36. Waste liquid tank, 37. Water tank 1, 38. Switch valve, 39. Water tank 2, 310. Air inlet pipe 1, 311. Air outlet pipe 1, 312. Air outlet pipe 2, 313. Transmission gear 2, 314. Transmission gear 3, 315. Air inlet pipe 2, 316. Water outlet pipe 3, 317. Water outlet pipe 4, 318. Water inlet pipe 1; 4. Adsorption and drainage assembly, 41. Water inlet pipe 2, 42. Crushing knife, 43. Water guide rubber pad, 44. Adsorption air hole, 45. Adsorption rubber ring, 46. Air inlet pipe 3, 47. Impeller 2, 48. Air inlet pipe 4, 49. Air inlet pipe 5; 5. Height adjustment unit; 6. Width adjustment unit; 7. Driving unit; 8. Mode conversion unit. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] Embodiment 1, as Figure 1-Figure 12 As shown, the pressure injury debridement device of this embodiment includes a splash shield 1, a waste liquid tank 36 arranged on one side of the splash shield 1, a water tank 1 37 fixedly arranged on the side wall of the waste liquid tank 36, and a water tank 2 39 fixedly arranged on one side of the waste liquid tank 36, and also includes a debridement and flushing component 2 arranged on the splash shield 1, an adsorption and drainage component 4 arranged on the splash shield 1, and a driving component 3 arranged on one side of the splash shield 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 slidably and rotatably arranged on the upper wall of the splash shield 1, a telescopic sleeve 2 212 slidably arranged in the moving block 216, a telescopic sleeve 1 210 slidably arranged in the telescopic sleeve 212, and a support rod 217 rotatably arranged at the lower end of the moving block 216 in a circular array with the central axis of the telescopic sleeve 1 210 as the axis; 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.

[0022] The height adjustment unit 5 includes an installation box 1 21 fixedly arranged on the top wall of the splash shield 1, an installation box 2 22 fixedly arranged on the top wall of the installation box 1 21, a worm 24 rotatably arranged on the inner wall of the installation box 2 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 installation box 1 21, a worm wheel 25 fixedly arranged on the top wall of the threaded sleeve 26, an impeller cover 28 slidably arranged on the inner wall of the installation box 1 21, and an impeller 1 rotatably arranged in the impeller cover 28. 29. 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 outside of the telescopic sleeve 210, the worm 24 and the worm wheel 25 are meshingly connected, the threaded sleeve 26 and the threaded rod 27 are threadedly connected, the impeller 29 is fixedly connected to the telescopic sleeve 210, one end of the spring 211 is fixedly connected to the telescopic sleeve 212, and the other end of the spring 211 is fixedly connected to the telescopic sleeve 210.

[0023] Among them, the driving unit 7 includes an air pump 35 fixed on the top wall of the waste liquid tank 36, an air intake pipe 2 315 fixed on the air intake end of the air pump 35, a transmission gear 1 34 which is rotatably sleeved on the surface of the air intake pipe 2 315, and a peristaltic pump 3 33 fixed on the top wall of the waste liquid tank 36. The output end of the peristaltic pump 3 33 passes through the top wall of the waste liquid tank 36 and extends into the bottom of the waste liquid tank 36, and the transmission gear 1 34 is transmission-connected to the peristaltic pump 3 33.

[0024] Among them, the mode conversion unit 8 includes an outlet pipe 1 311 fixedly arranged at the outlet end of the air pump 35, an outlet pipe 2 312 fixedly arranged at the outlet end of the air pump 35, and a conversion valve 38 fixedly arranged on the top wall of the water tank 1 37, and the conversion valve 38 corresponds to the outlet pipe 1 311 and the outlet pipe 2 312.

[0025] Among them, the surface of the air outlet pipe 311 is provided with a transmission gear 2 313 in a snap-fitting and rotating manner, the surface of the air outlet pipe 312 is provided with a transmission gear 3 314 in a snap-fitting and rotating manner, a peristaltic pump 2 32 is fixedly provided on the top wall of the water tank 1 37, the input end of the peristaltic pump 2 32 extends into the bottom of the water tank 1 37, a peristaltic pump 1 31 is fixedly provided on the top wall of the water tank 2 39, the input end of the peristaltic pump 1 31 extends into the bottom of the water tank 2 39, the peristaltic pump 2 32 is transmission connected to the transmission gear 2 313, and the peristaltic pump 1 31 is transmission connected to the transmission gear 3 314.

[0026] Among them, the adsorption and drainage component 4 includes an inlet pipe 41 fixed on the side wall of the splash cover 1, a crushing knife 42 rotatably arranged on the inner wall of one end of the inlet pipe 41, a water-conducting rubber pad 43 fixed at one end of the inlet pipe 41, an adsorption air hole 44 opened inside the splash cover 1, an inlet pipe 3 46 fixed on the side wall of the inlet pipe 41, an inlet pipe 48 fixed on the side wall of the inlet pipe 3 46, and an impeller 47 rotatably arranged on the inner wall of the inlet pipe 3 46, the impeller 47 is coaxially fixedly connected with the crushing knife 42, the inlet pipe 3 46 is connected with the inlet pipe 4 48, and the adsorption rubber ring 45 is provided with an array of air holes, which are connected with the adsorption air holes 44.

[0027] Among them, a water outlet pipe 221 is provided between the connecting block 224 and the impeller cover 28, a water outlet pipe 23 is fixedly provided on the side wall of the splash shield 1, one end of the water outlet pipe 23 is connected with the inside of the splash shield 1, a water outlet pipe 4 317 is provided between the other end of the water outlet pipe 23 and the output end of the peristaltic pump 2 32, a water outlet pipe 316 is provided between the peristaltic pump 1 31 and the impeller cover 28, a water inlet pipe 1 318 is provided between the input end of the peristaltic pump 3 33 and the water inlet pipe 2 41, an air inlet pipe 1 310 is provided between the air inlet pipe 2 315 and the splash shield 1, the air inlet pipe 1 310 is connected with the adsorption air hole 44, and an air inlet pipe 5 49 is provided between the air inlet pipe 1 310 and the air inlet pipe 3 46.

[0028] A width adjuster is provided between the second telescopic sleeve 212 and the moving block 216 , a medical sponge 218 is detachably fixedly provided at the bottom of the second telescopic sleeve 212 , and a spray hole 219 is provided at the bottom of the second telescopic sleeve 212 .

[0029] 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 telescopic sleeve 212, and a locking gear 222 is slidably arranged in the locking hole. A spur gear 214 is fixedly arranged on the side wall of the locking gear 222, and a width adjustment knob 215 is fixedly arranged on the side wall of the spur gear 214. A rack 213 is fixedly arranged on the top wall of the moving block 216, and the rack 213 and the spur gear 214 are meshingly connected.

[0030] When in use, physiological saline is injected into water tank 2 39, disinfectant is injected into water tank 1 37, and splash guard 1 is placed over the pressure injury that needs to be debrided. Initially, conversion valve 38 blocks outlet pipe 1 311 but does not block outlet pipe 2 312, and air pump 35 is started. Air is sucked at the air inlet end of air pump 35, and negative pressure is generated between the adsorption rubber ring 45 and the skin through air inlet pipe 1 310 and adsorption air hole 44, so that splash guard 1 is adsorbed on the skin. Air discharged from the air outlet end of air pump 35 drives transmission gear 3 314 to rotate through outlet pipe 2 312, and transmission gear 3 314 drives peristaltic pump 1 31 to extract saline from water tank 2 39 and inject it into impeller cover 28. Water flow drives impeller cover 28 to rotate and discharges air from outlet pipe 2 2 The water 21 flows into the telescopic sleeve 1 210 and then into the telescopic sleeve 212, and then flows out from the spray hole 219 through the medical sponge 218. The water pressure stretches the spring 211, and the telescopic sleeve 1 210 and the telescopic sleeve 212 move downward to make the medical sponge 218 contact the wound. The rotating impeller 1 29 drives the telescopic sleeve 1 210 to rotate and then drives the telescopic sleeve 212 to rotate. The rotation of the telescopic sleeve 212 drives the medical sponge 218 to rotate and remove impurities such as necrotic tissue at the wound. The softness of the medical sponge 218 and the wetting of the wound by the sprayed salt water can prevent the medical sponge 218 from causing secondary damage to the wound. The sprayed salt water can also clean the wound. After the wound is cleaned, the conversion valve 38 is toggled to block the second air outlet pipe 312 but not 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 draw disinfectant from the water tank 37 and inject it into the first water outlet pipe 23. The disinfectant is sprayed out from the first water outlet pipe 23 to further clean and disinfect the cleaned wound. The air inlet end of the air pump 35 draws air from the air inlet pipe 2 315 to drive the transmission gear 1 34 to rotate. The rotation of the transmission gear 1 34 drives the peristaltic pump 3 33 to extract the waste liquid and impurities generated during the debridement process from the inside of the splash cover 1 through the water inlet pipe 2 41. The air inlet end of the air pump 35 can also take in air through the air inlet pipe 1 310 and then through the air inlet pipe 4 48. The air intake of the air inlet pipe 4 48 drives the impeller 2 47 to rotate. The rotation of the impeller 2 47 drives the crushing knife 42 to rotate, thereby crushing the larger necrotic tissue to prevent it from blocking the pipeline. The worm 24 is driven to rotate by rotating the height adjustment knob 220, and the rotation of the worm 24 drives the worm wheel 25 to rotate, and then drives the threaded sleeve 26 to rotate. The rotation of the threaded sleeve 26 can drive the threaded rod 27 and then drive the impeller cover 28 to move up and down in the splash cover 1. The up and down movement of the impeller cover 28 can adjust the working height of the impeller cover 28, so that the device can adapt to wounds of different depths; Pull the width adjustment knob 215 to disengage the locking gear 222 from the telescopic sleeve 212, so that the spur gear 214 can rotate, turn the width adjustment knob 215 to drive the spur gear 214 to rotate, and the rotation of the spur gear 214 can drive the locking gear 222 to move downward, and the movement of the locking gear 222 drives the moving block 216 to move, and the movement of the moving block 216 can drive the support rod 217 to expand outward, and the support rod 217 drives the medical sponge 218 to expand outward, so that the device can adapt to wounds of different sizes. After the adjustment is completed, push the width adjustment knob 215, and the locking gear 222 can be engaged with the telescopic sleeve 212 to lock the moving block 216.

[0031] Embodiment 2, as Figure 6 and 13 As shown, the difference between this embodiment and the first embodiment is that, in this embodiment, the width adjuster includes an electric telescopic rod 223, which is fixed to 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.

[0032] During specific use, the moving block 216 is driven to move by adjusting the extension 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 outward, and the support rod 217 drives the medical sponge 218 to expand outward, so that the device can adapt to wounds of different sizes.

[0033] In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creatively designing without departing from the purpose of the invention, they should all fall within the scope of protection of the invention.

Claims

1. A pressure injury debridement device, comprising a splash shield (1), a waste liquid tank (36) arranged on one side of the splash shield (1), a water tank 1 (37) fixedly arranged on the side wall of the waste liquid tank (36), and a water tank 2 (39) fixedly arranged on one side of the waste liquid tank (36), characterized in that: It also includes a debridement and irrigation assembly (2) arranged on the splash shield (1), an adsorption and drainage assembly (4) arranged on the splash shield (1), and a drive assembly (3) arranged on one side of the splash shield (1); The debridement and flushing assembly (2) comprises 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) comprises a moving block (216) slidably and rotatably arranged on the upper wall of the splash shield (1), a telescopic sleeve (212) slidably arranged in the moving block (216), a telescopic sleeve (210) slidably arranged in the telescopic sleeve (212), and a support rod (217) rotatably arranged at the lower end of the moving block (216) in a circular array with the central axis of the telescopic sleeve (210) as the axis. The driving assembly (3) comprises a driving unit (7) and a mode conversion unit (8), and the driving unit (7) and the mode conversion unit (8) are connected by a pipeline.

2. A pressure injury debridement device according to claim 1, characterized in that: The height adjustment unit (5) comprises an installation box (21) fixedly arranged on the top wall of the splash cover (1), an installation box (22) fixedly arranged on the top wall of the installation box (21), a worm (24) rotatably arranged on the inner wall of the installation box (22), a height adjustment knob (220) fixedly arranged on one end of the worm (24), a threaded sleeve (26) rotatably arranged on the top wall of the installation box (21), a worm wheel (25) fixedly arranged on the top wall of the threaded sleeve (26), an impeller cover (28) slidably arranged on the inner wall of the installation box (21), an impeller (29) rotatably arranged in the impeller cover (28), a fixed impeller (29) A connecting block (224) fixedly arranged on the top wall of an 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 outside of a telescopic sleeve (210); the worm (24) and the worm wheel (25) are meshingly connected; the threaded sleeve (26) and the threaded rod (27) are threadedly connected; the impeller (29) is fixedly connected to the telescopic sleeve (210); one end of the spring (211) is fixedly connected to the telescopic sleeve (212); and the other end of the spring (211) is fixedly connected to the telescopic sleeve (210).

3. A pressure injury debridement device according to claim 2, characterized in that: The driving unit (7) comprises an air pump (35) fixedly mounted on the top wall of the waste liquid tank (36), an air intake pipe (315) fixedly mounted on the air intake end of the air pump (35), a transmission gear (34) rotatably sleeved on the surface of the air intake pipe (315), and a peristaltic pump (33) fixedly mounted on the top wall of the waste liquid tank (36). The output end of the peristaltic pump (33) penetrates the top wall of the waste liquid tank (36) and extends into the bottom of the waste liquid tank (36), and the transmission gear (34) is in transmission connection with the peristaltic pump (33).

4. A pressure injury debridement device according to claim 3, characterized in that: The mode conversion unit (8) comprises an air outlet pipe 1 (311) fixedly arranged at the air outlet end of the air pump (35), an air outlet pipe 2 (312) fixedly arranged at the air outlet end of the air pump (35), and a conversion valve (38) fixedly arranged at the top wall of the water tank 1 (37), wherein the conversion valve (38) corresponds to the air outlet pipe 1 (311) and the air outlet pipe 2 (312).

5. A pressure injury debridement device according to claim 4, characterized in that: The surface of the air outlet pipe 1 (311) is provided with a transmission gear 2 (313) in a snap-fitting and rotatable manner, and the surface of the air outlet pipe 2 (312) is provided with a transmission gear 3 (314) in a snap-fitting and rotatable manner. A peristaltic pump 2 (32) is fixedly provided on the top wall of the water tank 1 (37), and the input end of the peristaltic pump 2 (32) extends into the bottom of the water tank 1 (37). A peristaltic pump 1 (31) is fixedly provided on the top wall of the water tank 2 (39), and the input end of the peristaltic pump 1 (31) extends into the bottom of the water tank 2 (39). The peristaltic pump 2 (32) is transmission-connected to the transmission gear 2 (313), and the peristaltic pump 1 (31) is transmission-connected to the transmission gear 3 (314).

6. A pressure injury debridement device according to claim 5, characterized in that: The adsorption and drainage assembly (4) comprises a second water inlet pipe (41) fixedly arranged on the side wall of the splash shield (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 on one end of the second water inlet pipe (41), an adsorption air hole (44) opened inside the splash shield (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 a second impeller (47) rotatably arranged on the inner wall of the third air inlet pipe (46), wherein the second impeller (47) is coaxially fixedly connected to the crushing knife (42), the third air inlet pipe (46) is connected to the fourth air inlet pipe (48), and the adsorption rubber ring (45) is provided with air holes in an array, and the air holes are connected to the adsorption air holes (44).

7. A pressure injury debridement device according to claim 6, characterized in that: A water outlet pipe 2 (221) is provided between the connecting block (224) and the impeller cover (28); a water outlet pipe 1 (23) is fixedly provided on the side wall of the splash cover (1); one end of the water outlet pipe 1 (23) is connected to the interior of the splash cover (1); a water outlet pipe 4 (317) is provided between the other end of the water outlet pipe 1 (23) and the output end of the peristaltic pump 2 (32); a water outlet pipe 3 (316) is provided between the peristaltic pump 1 (31) and the impeller cover (28); a water inlet pipe 1 (318) is provided between the input end of the peristaltic pump 3 (33) and the water inlet pipe 2 (41); an air inlet pipe 1 (310) is provided between the air inlet pipe 2 (315) and the splash cover (1); the air inlet pipe 1 (310) is connected to the adsorption air hole (44); and an air inlet pipe 5 (49) is provided between the air inlet pipe 1 (310) and the air inlet pipe 3 (46).

8. The pressure injury debridement device according to claim 1, characterized in that: A width adjuster is provided between the second telescopic sleeve (212) and the moving block (216); a medical sponge (218) is detachably fixedly provided at the bottom of the second telescopic sleeve (212); and a spray hole (219) is provided at the bottom of the second telescopic sleeve (212).

Images