CN114053010B

CN114053010B - Household negative pressure oxygen therapy device for daily cleaning physiotherapy of chronic wound surface

Info

Publication number: CN114053010B
Application number: CN202111186260.9A
Authority: CN
Inventors: 李泽华; 李升红; 刘宏伟; 卢金强; 韩雯雯
Original assignee: First Affiliated Hospital of Jinan University
Current assignee: First Affiliated Hospital of Jinan University
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2023-06-13
Anticipated expiration: 2041-10-12
Also published as: CN114053010A

Abstract

The invention discloses a household negative pressure oxygen therapy device for daily cleaning physiotherapy of chronic wound surfaces, which comprises a device box, wherein a maneuvering bin and a storage bin are arranged in the device box, a groove is formed in the middle position of the top of the device box, two sides of the inner wall of the maneuvering bin are connected with brackets extending to the outside of the device box in a sliding manner, top plates are arranged at the tops of the brackets, a device box is connected to the bottoms of the top plates through a moving assembly, and a pressing assembly is arranged in a depression at the bottom of the device box. According to the invention, the clamping force on the affected limb can be automatically regulated by the self force application of the patient, so that the wound surface treatment of the patient in a more comfortable environment is ensured, the medicine can be automatically applied without the assistance of other people, the use is more convenient, meanwhile, the blade can automatically cut off the wrapping cloth used before after the cleaning is finished, and the cut wrapping cloth falls into the storage bin, so that the cleaning after the use is convenient.

Description

Household negative pressure oxygen therapy device for daily cleaning physiotherapy of chronic wound surface

Technical Field

The invention relates to the technical field of medical appliances, in particular to a household negative pressure oxygen therapy device for daily cleaning physiotherapy of chronic wounds.

Background

The chronic wound difficult to heal is a wound which is not healed after more than 1 month of treatment and is caused by various reasons, and is mostly seen in diseases such as diabetic feet, pressure sores, vascular ulcers, burns and scalds and the like. The wound surface is prolonged and developed into a chronic wound surface due to the large wound area, complex injury, local tissue infection, blood supply disorder, poor nutrition condition and the like, and the cell proliferation disorder and the epithelial transformation are blocked. The treatment of chronic wound is a long-term process, and the early hospitalization period is thoroughly debrided, anti-infection and negative pressure closed drainage treatment. After the disease is basically controlled and the healing trend is presented, the patient is generally recommended to be discharged from the hospital due to the consideration of medical resources, hospitalization cost, life convenience and other factors, and the routine treatment is mainly finished at home in the later period and the patient is regularly re-diagnosed.

Daily home care after discharge mainly includes wound dressing, removal of small exudates and secretions, oxygen blowing, etc. to create a dry and clean environment to promote healing thereof. Although the operation is simple, the independent completion of patients still has certain difficulty and needs the assistance of other people, and the household wound oxygen therapy instrument on the market at present does not have the function of wound dressing or cleaning, so that the use is more troublesome.

Disclosure of Invention

The invention aims to provide a household negative pressure oxygen therapy device for daily cleaning physiotherapy of chronic wounds, which solves the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the household negative pressure oxygen therapy device for daily cleaning physiotherapy of chronic wound surfaces comprises a device box, wherein a maneuvering bin and a storage bin are arranged in the device box, a groove is formed in the middle position of the top of the device box, two sides of the inner wall of the maneuvering bin are both connected with brackets extending to the outside of the device box in a sliding manner, the top of each bracket is provided with a top plate, the bottom of each top plate is connected with a device box, and a pressing component is arranged at a concave position of the bottom of each device box;

the inside of the device box is provided with a winding roller, a clamping unit, a fixed roller, a cutting assembly and a driven assembly in sequence from left to right;

the cotton placing machine is characterized in that cotton placing is arranged in the groove, the cotton placing is of a cylindrical structure, a lifting rack penetrating into the motor bin is arranged at the bottom of the cotton placing, a driving wheel and two rotating gears are arranged in the motor bin, the two rotating gears are respectively positioned on two sides of the driving wheel, teeth matched with the rotating gears are arranged on one side of the support, and the driving wheel is meshed with the lifting rack;

the top of roof is provided with places the case, and places the inside of case and be provided with sump and oxygen cabin, one side of device case is provided with the gasbag, and one side of gasbag is provided with the connecting pipe with sump intercommunication, one side intercommunication of sump has the pipeline that extends to the inside of pushing down the subassembly, one side of oxygen cabin is provided with the outlet duct with the pipeline intercommunication, the opposite side of device case is provided with the negative pressure pump, and the suction end of negative pressure pump is provided with the negative pressure pipe with pushing down the subassembly intercommunication.

Preferably, the two rotating gears are respectively connected with the driving wheel through a linkage assembly, the linkage assembly comprises two pinions and a conveying belt for driving and connecting the two pinions, and the radius of each rotating gear is at least one five times that of the driving wheel.

Preferably, wrapping cloth is wound outside the wind-up roll, the wrapping cloth comprises porous cotton and a film fixed on the lower end face of the porous cotton, holes are formed in the film, the holes are of a round structure and used for being in contact with affected limbs of a patient, the holes can expose affected parts on the affected parts of the patient, the film at the rest position can be used for attaching and sealing normal skin around the affected parts of the patient, tightness of the wrapping cloth is guaranteed, the clamping unit comprises two groups of clamping assemblies, each group of clamping assemblies comprises two clamping rollers, and the two clamping rollers are respectively located at the upper end and the lower end of the wrapping cloth and clamp the wrapping cloth.

Preferably, the driven component comprises a driven rack fixed at the top of the device box and a driven wheel arranged in the device box, the rotating rod is connected in the device box in a rotating mode, a one-way bearing is arranged outside the rotating rod, the driven wheel is assembled outside the one-way bearing, and the rotating rod is connected with the rotating rod on one of the clamping rollers through the linkage component.

Preferably, the cutting assembly comprises a fixed rod fixed at the top of the device box, and a first fixed box and a second fixed box fixed inside the device box, wherein the first fixed box and the second fixed box are communicated through a linkage pipe, a first piston is arranged inside the first fixed box, the bottom of the first piston is fixedly connected with the top of the fixed rod, a second piston is arranged inside the second fixed box, a blade extending to the bottom of the second fixed box is arranged at the bottom of the second piston, and a knife groove matched with the blade is formed in the top of the fixed roller.

Preferably, the pressing component comprises an elastic block and meshes formed in the bottom of the elastic block, the elastic block is of a hollow structure, and the elastic block is made of soft silicone rubber.

Preferably, the pipeline includes first minute pipe and second minute pipe, the top of roof is provided with fixed box, and the inside rotation of fixed box is connected with the pivot that runs through to the roof bottom, the outside of pivot evenly is provided with the flabellum, and the bottom fixedly connected with cam of pivot, the top of device box is provided with the cooperation piece with cam matched with, first minute pipe and second minute pipe communicate with the inside of fixed box respectively.

Preferably, a moving assembly is arranged between the top plate and the device box, the moving assembly comprises a mounting block fixed at the bottom of the top plate, a sliding groove is formed in the bottom of the mounting block, a sliding block is connected to the inside of the sliding groove in a sliding manner, the bottom of the sliding block is fixedly connected with the top of the device box, one side of the sliding block is connected with an elastic piece, and the other end of the elastic piece is connected with the inner side wall of the sliding groove.

Compared with the prior art, the invention has the beneficial effects that:

(1) According to the invention, the arranged placing cotton has soft elasticity, after the affected limb of a patient is placed on the placing cotton, the placing cotton can wrap the lower half part of the affected limb of the patient, at the moment, the patient can apply force properly, so that the placing cotton and the lifting rack descend, and further the driving wheel is driven to rotate, under the action of the linkage assembly, the two rotating gears rotate, and further the two brackets drive the top plate to descend, and as the radius of the rotating gears is at least five times of the radius of the driving wheel, after the driving wheel rotates for a certain number of turns, the rotating gears also rotate for a certain number of turns, the radius of the rotating gears is longer, the rotation circumference of the rotating gears is longer, the descending distance of the driven brackets is longer, the descending speed of the top plate is higher than the descending speed of the lifting rack, and further the patient only needs to slightly press the placing cotton, so that wrapping cloth at the bottom of the top plate is contacted with a wound surface on the affected limb of the patient, at the moment, the patient continues to apply force until the elastic block completely wraps the upper half part of the affected limb of the patient, the affected limb of the patient belongs to a closed state, and then the wrapping cloth is enabled to clamp the affected limb of the patient, and the affected limb of the patient can be more convenient to clamp the affected limb of the patient by oneself, and the patient can conveniently use the patient, and the condition is better;

(2) According to the invention, the air bag is arranged to squeeze, so that air can be injected into the water tank, so that the disinfectant in the water tank can be extruded into the elastic block through the pipeline, flows onto the wrapping cloth through the mesh at the bottom of the elastic block and is absorbed by porous cotton on the wrapping cloth, so that the affected part on the affected part of a patient can be disinfected and cleaned, meanwhile, the oxygen tank is filled with oxygen, and the oxygen can enter the elastic block through the air outlet pipe, so that the oxygen can be continuously contacted with the affected part of the patient, thereby increasing tissue oxygen supply, accelerating local cell proliferation, enhancing tissue repair capability, simultaneously expanding capillary blood vessels of the wound surface, reducing blood flow resistance, accelerating blood flow speed, reducing tissue exudation, reducing swelling, accelerating wound healing, and in addition, the oxygen has inhibition effects on gram negative bacteria and positive bacteria, so that local infection is prevented or reduced;

(3) According to the invention, the first fixing box and the second fixing box can be driven to descend when the device box is descended, the fixing rod is fixed at the top of the device box, so that the fixing rod keeps unchanged in position, the first piston can relatively ascend when the first fixing box descends, and then gas in the second fixing box is sucked into the first fixing box, so that the second piston in the second fixing box drives the blade to ascend, when the device box ascends, the blade descends, meanwhile, under the action of the one-way bearing, when the device box descends, the driven wheel rotates to prevent the linkage assembly at the rear of the driven wheel from moving, when the device box ascends, the driven wheel rotates to enable the linkage assembly at the rear of the driven wheel to start moving, and then the clamping roller in the clamping unit is driven to rotate, so that the wrapping cloth is dragged from left to right, when the device box ascends to the highest position, the blade is meshed with the knife slot on the fixing roller, the wrapping cloth is cut off, automatic cutting-off processing of the wrapping cloth used before is completed, and the wrapping cloth can be conveniently and automatically cleaned to the inside of a user without the aid of a user.

Drawings

FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is a schematic view showing the internal structure of embodiment 1 of the present invention;

FIG. 3 is a schematic view of a cutting assembly according to the present invention;

FIG. 4 is a schematic view of the wrapping cloth of the present invention;

FIG. 5 is a schematic view showing the internal structure of embodiment 2 of the present invention;

fig. 6 is a schematic view showing the internal structure of the fixing case in embodiment 2 of the present invention.

In the figure: 1. an apparatus box; 101. a motor bin; 102. a storage bin; 103. a groove; 104. placing cotton; 2. a bracket; 3. a top plate; 4. a moving assembly; 5. a device box; 6. pressing down the assembly; 601. an elastic block; 602. a mesh; 7. a wind-up roll; 8. a clamping unit; 9. a fixed roller; 10. wrapping cloth; 1001. porous cotton; 1002. a film; 1003. a hole; 11. a cutting assembly; 111. a first fixed box; 112. a second fixed box; 113. a linkage tube; 114. a first piston; 115. a fixed rod; 116. a second piston; 117. a blade; 12. a driven assembly; 121. a driven rack; 122. driven wheel; 13. lifting the rack; 14. a driving wheel; 15. rotating the gear; 16. teeth; 17. a linkage assembly; 18. a negative pressure pump; 19. a negative pressure pipe; 20. placing a box; 2001. a water tank; 2002. an oxygen compartment; 21. an air bag; 22. a connecting pipe; 23. a pipe; 231. a first branch pipe; 232. a second branch pipe; 24. a fixed box; 25. a rotating shaft; 26. a fan blade; 27. a cam; 28. and an air outlet pipe.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-4, the present invention provides an embodiment 1:

the household negative pressure oxygen therapy device for daily cleaning physiotherapy of chronic wound surfaces comprises a device box 1, wherein a motorized bin 101 and a storage bin 102 are arranged in the device box 1, a groove 103 is formed in the middle of the top of the device box 1, two sides of the inner wall of the motorized bin 101 are connected with a support 2 extending to the outside of the device box 1 in a sliding manner, a top plate 3 is arranged at the top of the support 2, a device box 5 is connected to the bottom of the top plate 3, and a pressing component 6 is arranged in a concave part at the bottom of the device box 5;

the inside of the device box 5 is provided with a wind-up roll 7, a clamping unit 8, a fixed roll 9, a cutting assembly 11 and a driven assembly 12 in sequence from left to right;

the inside of the groove 103 is provided with a cotton placing 104, the cotton placing 104 is of a cylindrical structure, the bottom of the cotton placing 104 is provided with a lifting rack 13 penetrating into the motor bin 101, the motor bin 101 is internally provided with a driving wheel 14 and two rotating gears 15, the two rotating gears 15 are respectively positioned on two sides of the driving wheel 14, one side of the bracket 2 is provided with teeth 16 matched with the rotating gears 15, and the driving wheel 14 is meshed with the lifting rack 13;

the top of roof 3 is provided with places case 20, and places the inside of case 20 and is provided with sump 2001 and oxygen cabin 2002, and one side of device case 1 is provided with gasbag 21, and one side of gasbag 21 is provided with the connecting pipe 22 with sump 2001 intercommunication, and one side intercommunication of sump 2001 has the pipeline 23 that extends to the inside of pushing down subassembly 6, and one side of oxygen cabin 2002 is provided with the outlet duct 28 with pipeline 23 intercommunication, and the opposite side of device case 1 is provided with negative pressure pump 18, and the suction end of negative pressure pump 18 is provided with negative pressure pipe 19 with pushing down subassembly 6 intercommunication.

Referring to fig. 2, two rotating gears 15 are respectively connected with the driving wheel 14 through a linkage assembly 17, wherein the linkage assembly 17 comprises two pinions and a conveyor belt for driving and connecting the two pinions, and the radius of the rotating gears 15 is at least five times that of the driving wheel 14.

Referring to fig. 2, a wrapping cloth 10 is wound around the winding roller 7, the wrapping cloth 10 includes a porous cotton 1001 and a film 1002 fixed on the lower end surface of the porous cotton 1001, a hole 1003 is formed on the film 1002, the hole 1003 is in a circular structure, the film 1002 is used for contacting a patient's affected part on the patient's affected part, the hole 1003 can expose the affected part on the patient's affected part, the films at the rest positions can seal the normal skin around the affected part of the affected part, so as to ensure the tightness, the clamping unit 8 includes two groups of clamping assemblies, each group of clamping assemblies includes two clamping rollers, and the two clamping rollers are respectively located at the upper end and the lower end of the wrapping cloth 10 and clamp the wrapping cloth 10.

Referring to fig. 2, the driven component 12 includes a driven rack 121 fixed on the top of the device box 1 and a driven wheel 122 disposed inside the device box 5, a rotating rod is rotatably connected inside the device box 5, a unidirectional bearing is disposed outside the rotating rod, the driven wheel 122 is assembled outside the unidirectional bearing, and the rotating rod is connected with a rotating rod on one of the clamping rollers through the linkage component 17.

Referring to fig. 2 and 3, the cutting assembly 11 includes a fixing rod 115 fixed at the top of the device box 1, and a first fixing box 111 and a second fixing box 112 fixed inside the device box 5, the first fixing box 111 and the second fixing box 112 are communicated through a linkage pipe 113, a first piston 114 is disposed inside the first fixing box 111, the bottom of the first piston 114 is fixedly connected with the top of the fixing rod 115, a second piston 116 is disposed inside the second fixing box 112, the bottom of the second piston 116 is provided with a blade 117 extending to the bottom of the second fixing box 112, and the top of the fixing roller 9 is provided with a blade groove matched with the blade 117.

Referring to fig. 2, the pressing component 6 includes an elastic block 601 and a mesh 602 formed at the bottom of the elastic block 601, the elastic block 601 is of a hollow structure, and the elastic block 601 is made of soft silicone rubber.

Referring to fig. 5 and 6, the present invention further provides an embodiment 2:

this embodiment differs from embodiment 1 in that: the pipeline 23 includes first branch pipe 231 and second branch pipe 232, the top of roof 3 is provided with fixed box 24, and fixed box 24's inside rotation is connected with the pivot 25 that runs through to roof 3 bottom, the outside of pivot 25 evenly is provided with flabellum 26, and pivot 25's bottom fixedly connected with cam 27, device box 5's top is provided with the cooperation piece with cam 27 matched with, first branch pipe 231 and second branch pipe 232 communicate with fixed box 24's inside respectively, be provided with between roof 3 and the device box 5 and remove subassembly 4, and remove subassembly 4 including fixing the installation piece in roof 3 bottom, and the spout has been seted up to the bottom of installation piece, the inside sliding connection of spout has the slider, and the bottom of slider and the top fixed connection of device box 5, one side of slider is connected with the elastic component, and the other end of elastic component is connected with the inside wall of spout.

In this embodiment, when the antiseptic solution passes through the fixed box 24, the fan blade 26 inside the fixed box 24 can be made to rotate, the fan blade 26 drives the rotating shaft 25 and the cam 27 to rotate, the rotation of the cam 27 can continuously squeeze the matching block on the device box 5, so that the device box 5 deflects left and right, the wrapping cloth 10 deflects, and then the affected limb of a patient can be wiped and cleaned left and right, and the cleaning effect is better.

Working principle: when in use, a patient places an affected part on the placement cotton 104 to align the pressing component 6, the placement cotton 104 is soft enough to wrap the lower half part of the affected part of the patient, at the moment, the patient can apply proper force to enable the placement cotton 104 and the lifting rack 13 to descend so as to drive the driving wheel 14 to rotate, under the action of the linkage component 17, the two rotating gears 15 rotate so as to enable the two brackets 2 to drive the top plate 3 to descend, as the radius of the rotating gears 15 is at least five times of the radius of the driving wheel 14, after the driving wheel 14 rotates for a certain number of turns, the rotating gears 15 also rotate for a certain number of turns, the radius of the rotating gears 15 is longer, the rotation circumference of the rotating gears is longer, the descending distance of the brackets 2 driven by the proper force is longer, the descending speed of the top plate 3 is faster than the descending speed of the lifting rack 13, the patient can further contact the wrapping cloth 10 at the bottom of the top plate 3 with the wound surface on the patient's affected limb by slightly pressing the placing cotton 104, and the patient continues to exert force until the elastic block 601 completely wraps the upper half of the patient's affected limb, so that the affected part on the patient's affected limb is in a closed state, then the patient or medical staff begins to squeeze the air bag 21, and then can inject air into the water tank 2001, so that the disinfectant in the water tank 2001 can be squeezed into the elastic block 601 through the pipeline 23, flows onto the wrapping cloth 10 through the mesh 602 at the bottom of the elastic block 601 and is absorbed by the wrapping cloth 10, meanwhile, the oxygen tank 2002 is filled with oxygen, can enter the elastic block 601 through the air outlet pipe 28, so that the oxygen can continuously contact the affected part of the patient, and then increase tissue oxygen supply, so that local cell proliferation is quickened, the tissue repair capability is enhanced, simultaneously, capillary vessel of the wound surface can be expanded, blood flow resistance is reduced, blood flow speed is increased, tissue exudation is reduced, swelling is reduced, wound healing is accelerated, in addition, oxygen has inhibition effect on gram negative bacteria and gram positive bacteria, local infection is prevented or reduced, after cleaning is completed, a patient stops extruding the air bag 21, then a negative pressure pump is started, so that the negative pressure pump 18 starts working, wound pus in affected parts of the patient can be sucked up, because of a 10-position porous structure of wrapping cloth, pus and other pollutants can be absorbed in the wound, the negative pressure pump 18 is closed after the negative pressure treatment is completed, then the patient lifts hands, cotton 104 is placed under the action of a bottom spring of the cotton, the top plate 3 is lifted up and returns to the original position, before the first fixing box 111 and the second fixing box 112 can be driven to descend when the device box 5 descends, since the fixing rod 115 is fixed at the top of the device box 1, the fixing rod 115 keeps the position unchanged, when the first fixing box 111 descends, the first piston 114 can relatively ascend, and then the gas in the second fixing box 112 is sucked into the first fixing box 111, so that the second piston 116 in the second fixing box 112 drives the blade 117 to ascend, when the device box 5 ascends, the blade 117 descends, and simultaneously under the action of the unidirectional bearing, when the device box 5 descends, the driven wheel 122 rotates and does not cause the movement of the linkage assembly 17 at the rear thereof, when the device box 5 ascends, the driven wheel 122 rotates and causes the linkage assembly 17 at the rear thereof to start to move, and then drives the clamping roller in the clamping unit 8 to rotate, so that the wrapping cloth 10 is dragged from left to right, and when the device box 5 ascends to the highest position, the dragging is stopped, at this time, the blade 117 is also just engaged with the knife slot on the fixed roller 9, so that the wrapping cloth 10 is cut off, and then the automatic cutting process of the wrapping cloth 10 used previously is completed, and the cut wrapping cloth 10 falls into the storage bin 102, so that the wrapping cloth is convenient to clean after use.

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims

1. A domestic negative pressure oxygen therapy device for daily clean physiotherapy of chronic surface of a wound, includes device case (1), its characterized in that: the device comprises a device box (1), wherein a motorized bin (101) and a storage bin (102) are arranged in the device box (1), a groove (103) is formed in the middle position of the top of the device box (1), supports (2) extending to the outside of the device box (1) are connected to the two sides of the inner wall of the motorized bin (101) in a sliding mode, a top plate (3) is arranged at the top of each support (2), a device box (5) is connected to the bottom of each top plate (3), and a pressing component (6) is arranged at a concave position of the bottom of each device box (5);

a winding roller (7), a clamping unit (8), a fixed roller (9), a cutting assembly (11) and a driven assembly (12) are sequentially arranged in the device box (5) from left to right; the outside of the winding roller (7) is wound with wrapping cloth (10), the clamping unit (8) comprises two groups of clamping components, and each group of clamping components comprises two clamping rollers; the driven component (12) comprises a driven rack (121) fixed at the top of the device box (1) and a driven wheel (122) arranged in the device box (5), a rotating rod is rotatably connected in the device box (5), a one-way bearing is arranged outside the rotating rod, the driven wheel (122) is assembled outside the one-way bearing, and the rotating rod is connected with a rotating rod on one of the clamping rollers through a linkage component;

the cotton picking machine is characterized in that cotton placing (104) is arranged in the groove (103), lifting racks (13) penetrating into the motor bin (101) are arranged at the bottom of the cotton placing (104), a driving wheel (14) and two rotating gears (15) are arranged in the motor bin (101), the two rotating gears (15) are respectively located at two sides of the driving wheel (14), teeth (16) matched with the rotating gears (15) are arranged on one side of the support (2), and the driving wheel (14) is meshed with the lifting racks (13);

the top of the top plate (3) is provided with a placing box (20), the inside of the placing box (20) is provided with a water tank (2001) and an oxygen tank (2002), one side of the device box (1) is provided with an air bag (21), one side of the air bag (21) is provided with a connecting pipe (22) communicated with the water tank (2001), one side of the water tank (2001) is communicated with a pipeline (23) extending to the inside of the pressing component (6), one side of the oxygen tank (2002) is provided with an air outlet pipe (28) communicated with the pipeline (23), the other side of the device box (1) is provided with a negative pressure pump (18), and the air suction end of the negative pressure pump (18) is provided with a negative pressure pipe (19) communicated with the pressing component (6);

the cutting assembly (11) comprises a fixed rod (115) fixed at the top of the device box (1) and a first fixed box (111) and a second fixed box (112) fixed inside the device box (5), the first fixed box (111) and the second fixed box (112) are communicated through a linkage pipe (113), a first piston (114) is arranged inside the first fixed box (111), the bottom of the first piston (114) is fixedly connected with the top of the fixed rod (115), a second piston (116) is arranged inside the second fixed box (112), a blade (117) extending to the bottom of the second fixed box (112) is arranged at the bottom of the second piston (116), and a knife groove matched with the blade (117) is formed in the top of the fixed roller (9).

2. A household negative pressure oxygen therapy device for daily cleaning and physiotherapy of chronic wounds according to claim 1, wherein: the two rotating gears (15) are respectively connected with the driving wheel (14) through a linkage assembly, the linkage assembly comprises two pinions and a conveying belt used for driving and connecting the two pinions, and the radius of each rotating gear (15) is at least one five times that of the driving wheel (14).

3. A household negative pressure oxygen therapy device for daily cleaning and physiotherapy of chronic wounds according to claim 1, wherein: the wrapping cloth (10) comprises porous cotton (1001) and a film (1002) fixed on the lower end face of the porous cotton (1001), and holes (1003) are formed in the film (1002).

4. A household negative pressure oxygen therapy device for daily cleaning and physiotherapy of chronic wounds according to claim 1, wherein: the pressing component (6) comprises an elastic block (601) and a mesh (602) arranged at the bottom of the elastic block (601), the elastic block (601) is of a hollow structure, and the elastic block (601) is made of soft silicone rubber.

5. A household negative pressure oxygen therapy device for daily cleaning and physiotherapy of chronic wounds according to claim 1, wherein: pipeline (23) are including first minute pipe (231) and second minute pipe (232), the top of roof (3) is provided with fixed box (24), and the inside rotation of fixed box (24) is connected with pivot (25) that run through to roof (3) bottom, the outside of pivot (25) evenly is provided with flabellum (26), and the bottom fixedly connected with cam (27) of pivot (25), the top of device box (5) is provided with the cooperation piece with cam (27) matched with, first minute pipe (231) and second minute pipe (232) communicate with the inside of fixed box (24) respectively.

6. A household negative pressure oxygen therapy device for daily cleaning and physiotherapy of chronic wounds according to claim 5, wherein: the device comprises a top plate (3) and a device box (5), wherein a moving assembly (4) is arranged between the top plate (3) and the device box (5), the moving assembly (4) comprises a mounting block fixed at the bottom of the top plate (3), a sliding groove is formed in the bottom of the mounting block, a sliding block is connected to the inside of the sliding groove in a sliding manner, the bottom of the sliding block is fixedly connected with the top of the device box (5), an elastic piece is connected to one side of the sliding block, and the other end of the elastic piece is connected with the inner side wall of the sliding groove.