Micro-pressure anti-falling medical knee joint fixing band

Abstract

The invention discloses a micro-pressure anti-falling medical knee joint fixing band, and relates to the technical field of knee joint nursing, the micro-pressure anti-falling medical knee joint fixing band comprises a middle connecting disc, a movable first protection pad, an attaching band, a micro air pump, a first anti-falling band, a second anti-falling band and a positioning first protection pad, and screw holes are formed in the outer end of the middle connecting disc at equal angles; a second positioning protection pad is arranged below the first positioning protection pad, and a third positioning protection pad is arranged below the second positioning protection pad. According to the micro-pressure anti-falling medical knee joint fixing band, the fixing band is prevented from falling off through the micro-pressure of the air bag body and the anti-falling structure, the length of the anti-falling structure is changed when a user bends down or sits down, the fixing band is prevented from falling off, unconscious excessive bending and stretching of the user during leg movement can be avoided by using a simple structure, and the safety of the user is improved. And the leg muscles of the user can be massaged by utilizing the air strips which are arranged in a one-to-one manner, so that the leg muscle atrophy of the user is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of knee joint care, and particularly to a knee joint medical fixation band with micro-pressure and anti-falling function. Background Art

[0002] After patellar surgery, meniscus surgery, and knee joint fracture surgery, a knee joint medical fixation band is required to fix the patient's knee joint, which is beneficial to the recovery of the patient's knee joint. The fixation band is made of breathable materials, comfortable to use, and can protect the lower limbs. The Chinese invention patent with the authorization announcement number CN104107111B discloses an elbow and knee joint postoperative fixation band, including an oval-shaped steel ring. A wrapping base cloth is provided on the inner ring of the steel ring, and elastic pleated sheets are provided at both ends of the wrapping base cloth. A circular groove is provided in the middle of the wrapping base cloth, and a support ring is embedded at the edge of the circular groove. A plaster fixing mold is provided in the support ring, and a heat-insulating foam layer is coated on the outer surface of the plaster fixing mold. The structure of the present invention is simple and reasonable in design, and ingeniously uses the concept of split design. According to the structural characteristics of joint parts such as the human elbow and knee, during long-term fixation after minimally invasive surgery, the joints are not likely to shift, and at the same time, the comfort of the human body is improved, and problems such as muscle atrophy and decline of physical functions are avoided. For example, the Chinese invention patent with the publication number CN119015035A discloses an adjustable fixation band for medical knee joint care, including a knee joint fixation band and a first hook-and-loop fastener. The first hook-and-loop fastener is provided on the inner side of the knee joint fixation band, and a support mechanism is provided on one side of the knee joint fixation band. In the present invention, by providing a support mechanism on the inner side of the knee joint fixation band, during use, the support mechanism is connected and fixed to the knee joint fixation band. The knob is rotated according to the current knee joint bending range suitable for the patient to drive the threaded rod to rotate. Under the action of threaded connection, the moving sleeve drives the upper and lower groups of adjusting rods to move. Further, under the action of hinged movable connection, one end of the upper and lower groups of adjusting frames is synchronously contracted or expanded to realize the adjustment of the included angle of the adjusting frames, so that the two adjusted adjusting frames are the maximum activity range of the current knee joint bending, that is, when the patient moves the leg, it can avoid the knee joint being damaged by unconscious excessive bending and stretching, and effectively improve the support and protection effect. Combined with the existing solutions and actual use, there are still some problems with the current knee joint medical fixation band. For the existing knee joint medical fixation band, during the wearing process, it is not convenient to stably position the fixation band. When the user uses the fixation band for a long time, the leg muscles cannot be exercised, so the leg muscles are prone to atrophy, and the fixation band is not convenient for massaging the user's legs. The limiting structure for the range of knee joint movement is too complex, making it inconvenient to adjust the bending angle of the knee. Therefore, we propose a medical knee fixation band with micro-pressure anti-drop function to solve the problems mentioned above. Summary of the Invention

[0003] The purpose of the present invention is to provide a medical knee fixation band with micro-pressure anti-drop function, so as to solve the problems in the existing medical knee fixation band in the above-mentioned background technology. During the wearing process, it is inconvenient to stably position the fixation band. When the user uses the fixation band for a long time, the leg muscles cannot be exercised, so the leg muscles are prone to atrophy. The fixation band is inconvenient to massage the user's legs. The limiting structure for the range of knee joint movement is too complex and it is inconvenient to adjust the bending angle of the knee.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A medical knee fixation band with micro-pressure anti-drop function, including a central connecting disk, a movable first cushion, a close-fitting band, a micro air pump, a first anti-drop band, a second anti-drop band, and a positioning first cushion The outer end of the central connecting disk is provided with screw holes at equal angles, and a stop rod is installed inside the central connecting disk. An airbag structure is fixed on the outer side of the central connecting disk. The airbag structure includes an airbag body, an air injection nozzle, and an air release valve; A connecting ring is installed on the outer side of the central connecting disk, and a first sub-rod is fixed on the upper surface of the connecting ring. The top of the first sub-rod is connected to a first mother-rod. A movable second cushion, a movable third cushion, and a movable fourth cushion are arranged below the movable first cushion. A positioning second cushion, a positioning third cushion, and a positioning fourth cushion are arranged below the positioning first cushion; A movable disk is rotatably connected to the middle of the central connecting disk, and a second sub-rod is integrally arranged at the outer end of the movable disk. The bottom end of the second sub-rod is connected to a second mother-rod; Second connecting plates are fixed on the outer sides of the positioning first cushion, the positioning second cushion, the positioning third cushion, and the positioning fourth cushion. A binding band is fixed on the outer side of the second connecting plate. The binding band passes through the inside of the first connecting plate. The movable first cushion, the movable second cushion, the movable third cushion, and the movable fourth cushion are fixed inside the first connecting plate; A massage structure is installed on the close-fitting band. The massage structure includes an air release valve, an air strip, a micro air pump, an enclosing band, and a controller; A protective box is fixed at the top of the first anti-drop band. A micro motor is installed inside the protective box. A rotating rod is fixed at the output end of the micro motor. A baffle is fixed on the outer side of the rotating rod. A second anti-drop band is wound around the outer side of the rotating rod.

[0005] By adopting the above technical solution, the micro-pressure of the airbag body and the anti-falling structure are used to prevent the fixing belt from falling off. Moreover, when the user bends down or sits down, the length of the anti-falling structure changes to prevent the fixing belt from falling off. A simple structure can be used to prevent the user from unconsciously over-bending and stretching during leg movement, causing damage to the knee joint. The rising and falling air strips can massage the user's leg muscles to prevent the user's leg muscles from atrophy.

[0006] Preferably, the blocking rod is installed on the middle connecting plate through a screw hole, and the connecting ring is rotatably installed on the middle connecting plate.

[0007] Preferably, an air nozzle is fixed at one end of the airbag body, and an air release valve is arranged at the end of the airbag body far from the air nozzle.

[0008] Preferably, a screw hole is formed inside the first sub-rod, and the first sub-rod is fixedly connected to the middle connecting plate and the first mother rod through screws. Moreover, the bottom end of the first sub-rod is in an arc structure, and the first mother rod is fixedly connected to the positioning first cushion through a second connecting plate.

[0009] Preferably, the first sub-rod is fixedly connected to the positioning second cushion through a second connecting plate.

[0010] Preferably, the second sub-rod is fixedly connected to the positioning third cushion through a second connecting plate.

[0011] Preferably, the second mother rod is fixedly connected to the positioning fourth cushion through a second connecting plate.

[0012] Preferably, the second sub-rod is fixedly connected to the middle connecting plate through screws, and the second sub-rod and the second mother rod form a sliding structure.

[0013] Preferably, air strips are equidistantly fixed on the inner side of the close-fitting belt. The air strips are connected to a micro air pump through a hose. A controller is installed at the outer end of the micro air pump. A surrounding belt is fixed at the outer end of the close-fitting belt. An air release valve is arranged at the end of the air strip far from the hose.

[0014] Preferably, a hole for the second anti-falling belt to pass through is formed inside the protective box. Both the first anti-falling belt and the second anti-falling belt are connected to the first mother rod through hooks.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: For this knee joint medical fixing belt with micro-pressure and anti-falling function, the micro-pressure of the airbag body and the anti-falling structure are used to prevent the fixing belt from falling off. Moreover, when the user bends down or sits down, the length of the anti-falling structure changes to prevent the fixing belt from falling off. A simple structure can be used to prevent the user from unconsciously over-bending and stretching during leg movement, causing damage to the knee joint. The rising and falling air strips can massage the user's leg muscles to prevent the user's leg muscles from atrophy; 1. Slide the first sub-rod up and down inside the first mother-rod, and slide the second sub-rod up and down inside the second mother-rod, so that the use length of the fixing strap can be adjusted according to the leg length of the user; Slide the first movable cushion, the second movable cushion, the third movable cushion and the fourth movable cushion left and right on the outer side of the binding strap to adjust the left and right positions of the first movable cushion, the second movable cushion, the third movable cushion and the fourth movable cushion relative to the first positioning cushion, the second positioning cushion, the third positioning cushion and the fourth positioning cushion, so that patients with different body types can be used; 2. When wearing, the airbag body is inflated, and the airbag body fits with the user's knee joint. After the first anti-drop strap and the second anti-drop strap are hung on the shoulders, they are connected to the first mother-rod through hooks, which can hold the first mother-rod, and thus hold the fixing strap to prevent the fixing strap from falling off. The micro-pressure of the airbag body and the anti-drop structure prevent it from falling off; When the user bends down, the micro-motor drives the rotating rod to rotate and wind up the second anti-drop strap, so that it can be avoided that when the user bends down, the anti-drop structure is too long and the fixing strap falls off downward; 3. The outer end of the middle connecting disc is provided with screw holes at equal angles, and a stop rod is installed inside the middle connecting disc. The stop rod is installed on the middle connecting disc through the screw holes. Select the screw hole at a suitable position according to the range that the user's knee joint can bend, install the stop rod on the screw hole, and limit the movement range of the first sub-rod and the second sub-rod through the stop rod. A simple structure can be used to prevent the user from unconsciously over-bending and stretching during leg movement, causing damage to the knee joint; 4. The close-fitting strap and the air strips surround the user's leg. The close-fitting strap and the air strips are located inside the cushion structure. The staggered air strips are connected to the micro air pump through the same hose. Therefore, there are two groups of air strips. When one group of air strips is inflated, the other group of air strips deflates. The rising and falling air strips can massage the user's leg muscles, prevent the user's leg muscles from atrophy, and improve the stability effect and prevent falling off by using the fitting of the air strips with the patient's leg. Brief Description of the Drawings

[0016] Figure 1 It is an axonometric structure schematic diagram of the present invention; Figure 2 It is a connection structure schematic diagram of the airbag body and the middle connecting disc of the present invention; Figure 3 It is a connection structure schematic diagram of the stop rod and the middle connecting disc of the present invention; Figure 4 It is an axonometric sectional structure schematic diagram of the air strip of the present invention; Figure 5 It is a connection structure schematic diagram of the connecting ring and the first sub-rod of the present invention; Figure 6 It is a connection structure schematic diagram of the second sub-rod and the movable disc of the present invention; Figure 7 Schematic cross-sectional structure diagram of the protective box of the present invention; Figure 8 Schematic connection structure diagram of the baffle and the rotating rod of the present invention; Figure 9 Schematic connection structure diagram of the first connecting plate and the movable first cushion of the present invention; Figure 10 Schematic diagram of the flipping state of the movable first cushion of the present invention; Figure 11 Schematic connection structure diagram of the first sub-rod and the second mother-rod of the present invention; Figure 12 Schematic connection structure diagram of the second sub-rod and the second mother-rod of the present invention; Figure 13 Schematic cross-sectional structure diagram of the housing of the micro air pump of the present invention; Figure 14 Schematic cross-sectional structure diagram of the horizontal section of the micro middle connecting plate of the present invention.

[0017] In the figure: 1, middle connecting plate; 2, screw hole; 3, stop bar; 4, airbag body; 5, inflation nozzle; 6, deflation valve; 7, connecting ring; 8, first sub-rod; 9, first mother-rod; 10, movable first cushion; 11, movable second cushion; 12, movable third cushion; 13, movable fourth cushion; 14, first connecting plate; 15, second connecting plate; 16, second mother-rod; 17, second sub-rod; 18, movable plate; 19, strap; 20, close-fitting strap; 21, air strip; 22, micro air pump; 23, enclosing strap; 24, protective box; 25, micro motor; 26, rotating rod; 27, baffle; 28, first anti-falling strap; 29, second anti-falling strap; 30, positioning first cushion; 31, positioning second cushion; 32, positioning third cushion; 33, positioning fourth cushion; 34, controller. Detailed implementation manners

[0018] 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 creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1: Please refer to Figures 1 - 14 , for the existing medical knee fixing strap, during the wearing process, it is not convenient to stably position the fixing strap. To solve this technical problem, the following technical content is disclosed in this embodiment; A medical knee fixation band with micro-pressure anti-falling function, comprising a central connection disc 1, screw holes 2, stop bars 3, an airbag body 4, an air injection nozzle 5, an air release valve 6, a connecting ring 7, a first sub-bar 8, a first mother bar 9, a movable first cushion 10, a movable second cushion 11, a movable third cushion 12, a movable fourth cushion 13, a first connecting plate 14, a second connecting plate 15, a second mother bar 16, a second sub-bar 17, a movable disc 18, a strap 19, a close-fitting strap 20, an air strip 21, a micro air pump 22, an enclosing strap 23, a protective box 24, a micro motor 25, a rotating rod 26, a baffle 27, a first anti-falling strap 28, a second anti-falling strap 29, a positioning first cushion 30, a positioning second cushion 31, a positioning third cushion 32, a positioning fourth cushion 33, a controller 34; The outer side of the central connection disc 1 is fixed with the airbag body 4, and one end of the airbag body 4 is fixed with the air injection nozzle 5, and an air release valve 6 is arranged at the end of the airbag body 4 far from the air injection nozzle 5. The outer side of the central connection disc 1 is provided with the connecting ring 7, and the upper surface of the connecting ring 7 is fixed with the first sub-bar 8. The top of the first sub-bar 8 is connected with the first mother bar 9. The movable second cushion 11 is arranged below the movable first cushion 10, the movable third cushion 12 is arranged below the movable second cushion 11, the movable fourth cushion 13 is arranged below the movable third cushion 12, the positioning second cushion 31 is arranged below the positioning first cushion 30, the positioning third cushion 32 is arranged below the positioning second cushion 31, and the positioning fourth cushion 33 is arranged below the positioning third cushion 32; The outer sides of the positioning first cushion 30, the positioning second cushion 31, the positioning third cushion 32, and the positioning fourth cushion 33 are all fixed with the second connecting plate 15, and the outer side of the second connecting plate 15 is fixed with the strap 19. The strap 19 passes through the inside of the first connecting plate 14, and the outer sides of the movable first cushion 10, the movable second cushion 11, the movable third cushion 12, and the movable fourth cushion 13 are all inside the first connecting plate 14; The top of the first anti-falling strap 28 is fixed with the protective box 24. A micro motor 25 is installed inside the protective box 24, and the output end of the micro motor 25 is fixed with the rotating rod 26. A baffle 27 is fixed on the outer side of the rotating rod 26, and the second anti-falling strap 29 is coiled around the outer side of the rotating rod 26; Adjust the size of the fixing belt according to the patient's body type. Pull the movable first cushion 10 and the positioning first cushion 30 up and down. The first sub-rod 8 slides inside the first mother-rod 9 to adjust the distances between the first cushion 10 and the movable second cushion 11, and between the positioning first cushion 30 and the positioning second cushion 31. Then fix the first sub-rod 8 in the first mother-rod 9 with screws. Similarly, pull the movable fourth cushion 13 and the positioning fourth cushion 33 up and down. The second sub-rod 17 slides inside the second mother-rod 16 to adjust the distances between the movable third cushion 12 and the movable fourth cushion 13, and between the positioning third cushion 32 and the positioning fourth cushion 33. Then fix the second mother-rod 16 and the second sub-rod 17 with screws; The micro air pump 22 connected to the bottom end of the close-fitting belt 20 is provided with 2 groups of hoses. One group of hoses is connected to the air strip 21, and the other group of hoses is shorter and exposed to the outside. An air inflation structure is arranged at the outer end of the shorter hose. Valves are arranged in both groups of hoses. Open the valve of the shorter hose on the micro air pump 22, and insert the air inflation structure of the shorter hose on the micro air pump 22 into the air inflation nozzle 5 to inflate the airbag body 4; When wearing, place the close-fitting belt 20 around the user's leg, with the air strip 21 on the inner side. Attach the enclosing belt 23 to the outer side of the close-fitting belt 20. The close-fitting belt 20 and the enclosing belt 23 wrap around the user's leg. Then place the fixing belt under the patient's leg. The movable first cushion 10, the movable second cushion 11, the movable third cushion 12, and the movable fourth cushion 13 are on one side of the leg, and the positioning first cushion 30, the positioning second cushion 31, the positioning third cushion 32, and the positioning fourth cushion 33 are on the other side of the leg. As Figure 10 shown, tie the binding strap 19 to the outside of the cushion structure. The hook surface of the Velcro on the binding strap 19 is attached to the Velcro fluff surface to limit the cushion structure and the close-fitting belt 20 on the patient's leg and fix the patient's knee joint; Utilize the inflated airbag body 4 to fit the user's knee joint to play a role in stabilizing the fixing belt. Hang the hooks on the first anti-falling belt 28 and the second anti-falling belt 29 on the first mother-rod 9. The belt formed by the combination of the first anti-falling belt 28 and the second anti-falling belt 29 is obliquely hung on the user's shoulder, which can reinforce the fixing belt. When the user bends down, the user presses the button of the micro motor 25 on the protection box 24 (not shown in the figure). Under the action of the micro motor 25, the rotating rod 26 rotates to wind up the second anti-falling belt 29 and shorten the actual use length of the second anti-falling belt 29 to prevent the cushion structure from slipping down when the user bends down; Embodiment 2: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned Embodiment 1. For the existing knee joint medical fixing belt, when the user uses the fixing belt for a long time, the leg muscles cannot be exercised, so the leg muscles are prone to atrophy, and the fixing belt is not convenient for massaging the user's legs. To solve this technical problem, the following technical content is disclosed in this embodiment. Please refer to Figure 1 、Figure 4 and Figure 13 ; When worn, the air strips 21 that are close to the belt 20 and arranged at equal intervals surround the user's leg and fit closely to the user's leg. The cross-arranged air strips 21 are connected to the micro air pump 22 through the same hose. Therefore, there are 2 groups of micro air pumps 22 connected to the air strips 21 arranged at equal intervals. An air port (not shown in the figure) is provided on the mounting shell of the micro air pump 22, which can meet the working requirements of the micro air pump 22. The user controls the upper and lower 2 groups of micro air pumps 22 and the upper and lower 2 groups of air release valves 6 through the controller 34. The 2 groups of micro air pumps 22 act crosswise. When one group of air strips 21 is inflated, the air release valve 6 on the other group of air strips 21 deflates, and the user's leg is lifted and lowered by the 2 groups of air strips 21; Embodiment 3: The technical content disclosed in this embodiment is a further improvement based on the above-mentioned Embodiment 1. For the existing medical knee fixation belt, the structure for limiting the range of knee joint movement is too complex and it is not convenient to adjust the angle at which the knee can bend. To solve this technical problem, the following technical content is disclosed in this embodiment. Please refer to Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 、 Figures 9 - 12 and Figure 14 ; A screw hole 2 is provided inside the first sub-bar 8, and the first sub-bar 8 is fixedly connected to the middle connection disc 1 through a screw. Moreover, the bottom end of the first sub-bar 8 is in an arc structure. The second sub-bar 17 is fixedly connected to the middle connection disc 1 through a screw; When the knee joint of the user does not need to move, by fixing the first sub-bar 8 to the middle connection disc 1 and the second sub-bar 17 to the middle connection disc 1 with screws, the first sub-bar 8 and the first mother bar 9 and the second mother bar 16 and the second sub-bar 17 can be limited, and the fixed angle of the knee joint can be limited; Screw holes 2 are provided at equal angles on the outer end of the middle connection disc 1, and a stop bar 3 is installed inside the middle connection disc 1. When the knee joint can move but the range of movement is limited, select a suitable screw hole 2 on the middle connection disc 1 according to the range of movement that the user can move, and thread the stop bar 3 into the screw hole 2. When the connection ring 7 and the first sub-bar 8 rotate outside the middle connection disc 1, the first sub-bar 8 cannot continue to rotate when it touches the stop bar 3. When the second sub-bar 17 and the movable disc 18 rotate outside the middle connection disc 1, the second sub-bar 17 cannot continue to rotate when it touches the stop bar 3. The range of movement of the first sub-bar 8 and the second sub-bar 17 can be limited with a simple structure; The above completes a series of operations of the micro-pressure anti-drop medical knee fixation belt. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0020] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the attached drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A medical knee fixation band with micro-pressure anti-falling, comprising a central connection disc (1), a movable first cushion (10), an adjacent band (20), a micro air pump (22), a first anti-falling band (28), a second anti-falling band (29), and a positioning first cushion (30), characterized in that: The outer end of the central connection disc (1) is equiangularly provided with screw holes (2), and a stop rod (3) is installed inside the central connection disc (1). An airbag structure is fixed on the outer side of the central connection disc (1). The airbag structure includes an airbag body (4), an air injection nozzle (5), and an air release valve (6); A connection ring (7) is installed on the outer side of the central connection disc (1), and a first sub-rod (8) is fixed on the upper surface of the connection ring (7). The top of the first sub-rod (8) is connected to a first mother rod (9). A movable second cushion (11), a movable third cushion (12), and a movable fourth cushion (13) are arranged below the movable first cushion (10). A positioning second cushion (31), a positioning third cushion (32), and a positioning fourth cushion (33) are arranged below the positioning first cushion (30); A movable disc (18) is rotatably connected to the middle of the central connection disc (1), and a second sub-rod (17) is integrally arranged at the outer end of the movable disc (18). The bottom end of the second sub-rod (17) is connected to a second mother rod (16); Second connection plates (15) are fixed on the outer sides of the positioning first cushion (30), the positioning second cushion (31), the positioning third cushion (32), and the positioning fourth cushion (33). A binding band (19) is fixed on the outer side of the second connection plate (15). The binding band (19) passes through the inside of the first connection plate (14). The outer sides of the movable first cushion (10), the movable second cushion (11), the movable third cushion (12), and the movable fourth cushion (13) are all inside the first connection plate (14); A massage structure is installed on the adjacent band (20). The massage structure includes an air release valve (6), an air strip (21), a micro air pump (22), an enclosing band (23), and a controller (34); A protective box (24) is fixed at the top end of the first anti-falling band (28). A micro motor (25) is installed inside the protective box (24), and a rotating rod (26) is fixed at the output end of the micro motor (25). A baffle (27) is fixed on the outer side of the rotating rod (26). A second anti-falling band (29) is wound around the outer side of the rotating rod (26).

2. The micro-pressure anti-drop knee joint medical fixation band according to claim 1, wherein: The stop rod (3) is installed on the central connection disc (1) through the screw hole (2), and the connection ring (7) is rotatably installed on the central connection disc (1).

3. The medical knee fixation band with micro-pressure and anti-falling according to claim 1, characterized in that: One end of the airbag body (4) is fixed with an air injection nozzle (5), and an air release valve (6) is arranged at the end of the airbag body (4) far from the air injection nozzle (5).

4. The medical knee fixing band with micro-pressure and anti-falling according to claim 1, characterized in that: A screw hole (2) is formed inside the first sub-rod (8), and the first sub-rod (8) is fixedly connected to the middle connecting plate (1) and the first mother-rod (9) by screws. Moreover, the bottom end of the first sub-rod (8) is of an arc structure, and the first mother-rod (9) is fixedly connected to the positioning first cushion (30) through the second connecting plate (15).

5. A micro-pressure anti-falling medical knee fixation band according to claim 1, characterized in that: The first sub-rod (8) is fixedly connected to the positioning second cushion (31) through the second connecting plate (15).

6. The medical knee fixation band with micro-pressure anti-falling according to claim 1, characterized in that: The second sub-rod (17) is fixedly connected to the positioning third cushion (32) through the second connecting plate (15).

7. The medical knee fixing band with micro-pressure anti-falling according to claim 1, wherein: The second mother-rod (16) is fixedly connected to the positioning fourth cushion (33) through the second connecting plate (15).

8. A micro-pressure anti-falling medical knee fixation band according to claim 1, characterized in that: The second sub-rod (17) is fixedly connected to the middle connecting plate (1) by screws, and the second sub-rod (17) and the second mother-rod (16) form a sliding structure.

9. The medical knee fixing band with micro-pressure and anti-falling according to claim 1, wherein: Air strips (21) are fixedly arranged at equal intervals on the inner side of the proximity belt (20). The air strips (21) are connected to a micro air pump (22) through hoses. A controller (34) is installed at the outer end of the micro air pump (22). An enclosing belt (23) is fixed at the outer end of the proximity belt (20). An air release valve (6) is arranged at one end of the air strip (21) away from the hose.

10. A micro-pressure anti-falling medical knee fixation band according to claim 1, characterized in that: A hole for the second anti-falling belt (29) to pass through is formed inside the protective box (24). The first anti-falling belt (28) and the second anti-falling belt (29) are both connected to the first mother-rod (9) through hooks.

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