Rehabilitation medical instrument brace structure for treating knee joint

Abstract

The invention relates to the technical field of knee joint medical rehabilitation braces, and discloses a knee joint treatment rehabilitation medical appliance brace structure which comprises a thigh fixing brace and a shank fixing brace, and a knee bending angle limiting mechanism is arranged between the thigh fixing brace and the shank fixing brace. The thigh fixing brace and the shank fixing brace are each provided with a fixing anti-skid mechanism, and each fixing anti-skid mechanism comprises a fixing buckle fixedly installed on the side face of the thigh fixing brace and the side face of the shank fixing brace. By arranging the thigh fixing brace, the shank fixing brace, the first fixing bandage, the second fixing bandage, a base plate, a breathable lining, a fixing air bag and an induction fitting part, the thigh fixing brace and the shank fixing brace can be used for supporting the legs of a patient; the thigh fixing brace and the shank fixing brace can be further fixed through the first fixing bandage and the second fixing bandage, the thigh fixing brace and the shank fixing brace are fixed to the legs of the patient, and the fixing effect can be further improved through the fixing air bags.

Description

Technical Field

[0001] This invention relates to the field of knee joint medical rehabilitation braces, specifically a rehabilitation medical device brace structure for treating knee joints. Background Technology

[0002] Knee braces are medical protective gear used for postoperative rehabilitation of the knee joint. They belong to the category of rehabilitation protective gear and are made of orthokeratology fabric and lightweight aluminum, offering lightweight and breathable properties. They can replace traditional plaster casts for immobilization. They are suitable for ligament injury repair, postoperative meniscus fixation, postoperative fracture rehabilitation, and treatment of knee osteoarthritis, covering clinical applications such as postoperative fixation and conservative treatment of soft tissue injuries. Furthermore, they can balance the load on the joint surface through biomechanical interventions.

[0003] Current knee braces are mostly fixed with straps during use. To prevent the brace from shifting or slipping, the straps are often too tight. After prolonged use, this can cause discomfort due to pressure on the patient's leg. In addition, some patients may experience swelling after surgery, which can lead to the brace becoming unsuitable and unusable. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a rehabilitation medical device brace structure for treating knee joints. It solves the problems of existing knee joint braces where the straps are often too tight, causing discomfort to the patient's leg after prolonged use, and the brace becoming unusable after surgery due to swelling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rehabilitation medical device brace structure for treating knee joint, comprising a thigh fixation brace and a lower leg fixation brace, wherein a knee flexion angle limiting mechanism is provided between the thigh fixation brace and the lower leg fixation brace, and both the thigh fixation brace and the lower leg fixation brace are provided with a fixing anti-slip mechanism, wherein the fixing anti-slip mechanism includes fixing buckles fixedly installed on the sides of the thigh fixation brace and the lower leg fixation brace, and fixing straps one and two for cooperating use are respectively installed on the fixing buckles on both sides; The second fixing strap is equipped with a pad, and the inner walls of the thigh fixing brace and the calf fixing brace are detachably fitted with breathable liners. The inner walls of the breathable liners and the pad are equipped with multiple fixing airbags, and the fixing airbags are equipped with sensor patches. The thigh fixing brace and the calf fixing brace are equipped with fixing adjustment mechanisms for controlling the multiple fixing airbags. An elastic adjustment mechanism for patient rehabilitation training is provided between the thigh fixation brace and the calf fixation brace.

[0006] By adopting the above technical solution, and by setting up a thigh fixation brace, a calf fixation brace, fixation strap one, fixation strap two, a pad, a breathable liner, a fixation airbag, and a sensor-activated fit, the thigh and calf fixation braces can support the patient's legs. The fixation straps one and two can further fix the thigh and calf fixation braces, securing them to the patient's legs. The fixation airbag can further improve the fixation effect and prevent slippage. The position of the fixation airbag can avoid pressure on some acupoints and is easy for patients with sensitive skin to use, reducing the contact area. By controlling the inflation degree of the fixation airbag, the fixation force on the patient's legs can be controlled, effectively preventing loosening of the patient's legs due to swelling and swelling reduction.

[0007] Preferably, the knee flexion angle limiting mechanism includes a connecting block one mounted on the thigh fixation brace and a connecting block two mounted on the calf fixation brace. The connecting block one and the connecting block two are rotatably connected. An adjusting block is fixedly mounted on the connecting block one, and a rotating plate is rotatably mounted on the connecting block one. A blocking rod is slidably mounted on the rotating plate, and a handle is fixedly mounted at the end of the blocking rod. The rotating plate has several fixing holes for the blocking rod to be inserted, and an elastic element one is installed between the handle and the rotating plate.

[0008] Preferably, the fixing and adjusting mechanism includes a mounting frame fixedly installed on the sides of the thigh fixing brace and the calf fixing brace. The mounting frame is configured with a drive cavity and two air supply cavities through multiple partitions. An air extraction component is provided inside the air supply cavity. Both the thigh fixing brace and the calf fixing brace are provided with two annular multi-port air supply pipes. The fixing airbags are sequentially and alternately connected to the air inlets of the upper and lower air supply pipes. The air outlets of the two air inlets are respectively fixedly connected to the two air supply cavities of the mounting frame.

[0009] Preferably, the air extraction assembly includes two movable plates that are slidably disposed inside the air delivery cavity. A push-pull rod is fixedly installed on the surface of the movable plate, and the end of the push-pull rod extends slidably into the drive cavity. The drive cavity is provided with a drive assembly for driving the push-pull rod to move.

[0010] Preferably, the drive assembly includes a rotating circular frame rotatably mounted inside the drive cavity of the mounting frame. The rotating circular frame is equipped with two opposing push rods. A guide frame is fixedly mounted on the top end of the push rod, and the guide frame is sleeved on the outer surface of the adjacent push rod.

[0011] Preferably, a worm gear is fixedly installed on the side of the rotating circular frame, and a worm is rotatably installed inside the drive cavity of the mounting frame. A throttle handle is fixed to the top of the worm, and the worm gear and the worm are meshed with each other.

[0012] Preferably, the elastic adjustment mechanism includes a winding roller rotatably installed inside the connecting block, an elastic band is wound on the outer surface of the winding roller, the end of the elastic band is fixedly connected to the thigh fixation brace, the thigh fixation brace is slidably disposed inside the connecting block, and the connecting block is provided with a locking component for locking the winding roller.

[0013] Preferably, the locking assembly includes a limiting bracket fixedly installed on the outer surface of the connecting block, an installation plate fixedly installed at the end of the winding roller, at least one multi-stage telescopic rod fixedly installed on the side of the installation plate, a rotating bracket fixedly installed at the end of the multi-stage telescopic rod that meshes with the limiting bracket, and an elastic element two fixedly installed between the rotating bracket and the installation plate.

[0014] Preferably, the sides of the plurality of fixed airbags are fixedly fitted with sensing patches, the thigh fixation brace and the calf fixation brace are provided with built-in gait sensors, and the connection between the connecting block one and the connecting block two is provided with an angle sensor.

[0015] Preferably, one of the two connecting blocks is fitted with an elastic air cushion on the side near the knee, and the elastic air cushion is provided with a control air valve.

[0016] Working principle: Using fixing strap one and fixing strap two, the thigh fixation brace and the calf fixation brace are initially fixed to the patient's leg. Holding the handle drives the worm gear to rotate. As the worm gear rotates, it meshes with the worm wheel, which in turn drives the worm wheel to rotate. The rotation of the worm wheel drives the rotating frame to move. When the rotating frame rotates, it drives the two push rods to rotate as well. As the push rods rotate, they drive the guide frame to move up and down alternately. The movement of the guide frame simultaneously drives the moving plate to move up and down synchronously through the push-pull rod, realizing the alternating suction and inflation of the two air delivery cavities. When the moving plate moves, the suction and inflation of the fixation airbag can be realized through the air delivery tube. While adjusting the compression force of the fixation airbag, the fixation airbags at different positions can be inflated in sequence to realize the replacement of fixation points. By gripping the handle, the blocking rod is moved, causing it to disengage from the fixing hole. Rotating the rotating plate allows the blocking rod to be inserted into the fixing hole at different positions, thus adjusting the position of the blocking rod. This, in turn, limits the rotation angle between the thigh fixation brace and the calf fixation brace. The angle limit can be adjusted according to the patient's own condition, forcibly restricting the angle of the patient's movement and protecting the patient's leg. The elastic band allows the patient to exert force in their legs against its elasticity, aiding in elastic rehabilitation training. Pulling the limit bracket disengages it from the rotating bracket, adjusting its rotation angle. The rotating limit bracket, via multi-stage telescopic rods, drives the mounting plate to rotate, which in turn causes the winding roller to rotate synchronously, allowing for angle adjustment. The rotation of the winding roller controls the release and retraction of the elastic band, controlling its tension and elasticity. This, in turn, allows for adjustment of the patient's training intensity based on their recovery progress.

[0017] This invention provides a rehabilitation medical device brace structure for treating knee joint problems. It has the following beneficial effects: 1. This invention, through the configuration of a thigh fixation brace, a calf fixation brace, a first fixation strap, a second fixation strap, a pad, a breathable liner, a fixation airbag, and a sensor-activated fit, utilizes the thigh and calf fixation braces to support the patient's leg. The first and second fixation straps further secure the thigh and calf fixation braces to the patient's leg. The fixation airbag further enhances the fixation effect, preventing slippage. The placement of the fixation airbag avoids pressure on acupoints and is convenient for patients with sensitive skin, reducing the contact area. By controlling the inflation degree of the fixation airbag, the fixation force on the patient's leg can be controlled, effectively preventing loosening due to swelling or edema.

[0018] 2. This invention, by setting up connecting block one, connecting block two, rotating plate, blocking rod, and handle, allows the blocking rod to move when the handle is held, causing it to disengage from the fixing hole. Rotating the rotating plate allows the blocking rod to be inserted into the fixing hole at different positions, thus enabling adjustment of the blocking rod's position. This, in turn, limits the rotation angle between the thigh fixation brace and the calf fixation brace. The angle limit can be adjusted according to the patient's own condition, forcibly restricting the angle of the patient's movement and protecting the patient's leg.

[0019] 3. This invention, by setting up an installation frame, an air extraction component, an air supply pipe, and an air extraction component, utilizes the air extraction component to extract or supply air to the inside of the fixation airbag. The fixation airbags are connected sequentially and alternately to the air inlets of the upper and lower air supply pipes. The air extraction component can sequentially extract air from the inside of the fixation airbags. This can be used when the patient's legs become uncomfortable after prolonged restraint, allowing for direct replacement of fixation airbags at different points to reduce long-term pressure on a single part of the patient's legs and improve comfort during use.

[0020] 4. This invention uses a winding roller and an elastic band to help patients perform elastic rehabilitation training by having the patient exert force with their legs against the elasticity of the band. The winding roller rotates to control the tension and elasticity of the elastic band, thereby adjusting the training intensity according to the patient's recovery status and increasing the versatility of its use.

[0021] 5. This invention uses inductive patches, gait sensors, and angle sensors to monitor data reports such as muscle exertion, gait, and knee joint range of motion, helping patients and doctors to intuitively judge rehabilitation progress and avoid blind training. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from another angle; Figure 3 This is another schematic diagram of the angle structure of the present invention; Figure 4 This is a schematic cross-sectional view of the mounting bracket of the present invention; Figure 5 This is another cross-sectional view of the mounting bracket of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the rotating circular frame of the present invention; Figure 7 for Figure 3 A magnified structural diagram at point A; Figure 8 This is a cross-sectional structural diagram of the connecting block of the present invention; Figure 9 for Figure 8 A magnified structural diagram at point B.

[0023] 1. Thigh fixation brace; 2. Knee flexion angle limiting mechanism; 201. Connecting block one; 202. Connecting block two; 203. Adjusting block; 204. Handle; 205. Barrier rod; 206. Elastic element one; 207. Rotating plate; 3. Lower leg fixation brace; 4. Fixing and anti-slip mechanism; 401. Fixing buckle; 402. Fixing strap one; 403. Fixing strap two; 404. Fixing airbag; 405. Sensor patch; 406. Breathable lining; 5. Fixing 501. Fixed adjustment mechanism; 502. Mounting bracket; 503. Rotating round frame; 504. Worm gear; 505. Moving plate; 506. Push-pull rod; 507. Guide frame; 508. Push rod; 509. Air supply pipe; 6. Elastic adjustment mechanism; 601. Winding roller; 602. Elastic band; 603. Limiting bracket; 604. Rotating bracket; 605. Multi-stage telescopic rod; 606. Elastic component two; 607. Mounting plate; 7. Elastic air cushion. Detailed Implementation

[0024] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see the appendix Figure 1 -Appendix Figure 3 This invention provides a rehabilitation medical device brace structure for treating knee joint, including a thigh fixation brace 1 and a lower leg fixation brace 3. A knee flexion angle limiting mechanism 2 is provided between the thigh fixation brace 1 and the lower leg fixation brace 3. Both the thigh fixation brace 1 and the lower leg fixation brace 3 are provided with a fixing anti-slip mechanism 4. The fixing anti-slip mechanism 4 includes a fixing buckle 401 fixedly installed on the side of the thigh fixation brace 1 and the lower leg fixation brace 3. Fixing strap 1 402 and fixing strap 2 403 for cooperating use are respectively installed on the fixing buckle 401 on both sides. The fixing strap 403 is equipped with a pad. The inner walls of the thigh fixing brace 1 and the calf fixing brace 3 are detachably fitted with a breathable liner 406. The inner walls of the breathable liner 406 and the pad are equipped with multiple fixing airbags 404, and the fixing airbags 404 are equipped with sensor patches 405. The thigh fixing brace 1 and the calf fixing brace 3 are equipped with a fixing adjustment mechanism 5 for controlling the multiple fixing airbags 404. An elastic adjustment mechanism 6 for patient rehabilitation training is provided between the thigh fixation brace 1 and the lower leg fixation brace 3.

[0026] By setting up a thigh fixation brace 1, a calf fixation brace 3, fixation strap 1 402, fixation strap 2 403, a pad, a breathable liner 406, a fixation airbag 404, and a sensor-activated fit, the thigh fixation brace 1 and the calf fixation brace 3 can support the patient's leg. The fixation straps 1 402 and 2 403 can further fix the thigh fixation brace 1 and the calf fixation brace 3, securing them to the patient's leg. The fixation airbag 404 can further improve the fixation effect and prevent slippage. The position of the fixation airbag 404 can avoid pressure on some acupoints and is easy for patients with sensitive skin to use, reducing the contact area. By controlling the inflation degree of the fixation airbag 404, the fixation force with the patient's leg can be controlled, effectively preventing the patient's leg from loosening due to swelling and swelling reduction.

[0027] For details, please refer to the appendix. Figure 3 and attached Figure 7The knee flexion angle limiting mechanism 2 includes a connecting block 1 201 mounted on the thigh fixation brace 1 and a connecting block 202 mounted on the lower leg fixation brace 3. The connecting block 1 201 and the connecting block 202 are rotatably connected. An adjusting block 203 is fixedly installed on the connecting block 1 201, and a rotating plate 207 is rotatably installed on the connecting block 1 201. A blocking rod 205 is slidably installed on the rotating plate 207. A handle 204 is fixedly installed at the end of the blocking rod 205. Several fixing holes for the blocking rod 205 to be inserted are opened on the rotating plate 207. An elastic element 206 is installed between the handle 204 and the rotating plate 207.

[0028] By setting up connecting block 1 201, connecting block 202, rotating plate 207, blocking rod 205, and handle 204, holding the handle 204 causes the blocking rod 205 to move, disengaging it from the fixing hole. Rotating the rotating plate 207 allows the blocking rod 205 to be inserted into the fixing hole at different positions, thus adjusting the position of the blocking rod 205. This, in turn, limits the rotation angle between the thigh fixation brace 1 and the lower leg fixation brace 3. The angle limit can be adjusted according to the patient's own condition, forcibly restricting the angle of the patient's movement and protecting the patient's leg.

[0029] For details, please refer to the appendix. Figure 4 -Appendix Figure 6 The fixed adjustment mechanism 5 includes a mounting frame 501 fixedly installed on the sides of the thigh fixation brace 1 and the calf fixation brace 3. The mounting frame 501 is configured with a drive cavity and two air supply cavities through multiple partition plates. An air extraction component is provided inside the air supply cavity. Both the thigh fixation brace 1 and the calf fixation brace 3 are provided with two annular multi-port air supply pipes 509. The fixed airbag 404 is sequentially and alternately connected to the air inlets of the upper and lower air supply pipes 509. The air outlets of the two air inlets are fixedly connected to the two air supply cavities of the mounting frame 501 respectively.

[0030] By setting up the mounting bracket 501, the air extraction component, and the air supply pipe 509, the air extraction component can extract or supply air to the inside of the fixed airbag 404. The fixed airbag 404 is connected to the air inlets of the upper and lower air supply pipes 509 in an alternating manner. The air extraction component can extract air from the inside of the fixed airbag 404 in sequence. This can be used to directly replace the fixed airbag 404 in sequence to fix different points when the patient's legs become uncomfortable after a long period of restraint, reducing long-term pressure on a single part of the patient's legs and improving the comfort of use.

[0031] For details, please refer to the appendix. Figure 4 -Appendix Figure 6The air extraction assembly includes two movable plates 505 that are fitted and slidably disposed inside the air delivery cavity. A push-pull rod 506 is fixedly mounted on the surface of the movable plate 505. The end of the push-pull rod 506 extends slidably into the drive cavity. The drive cavity is provided with a drive assembly for driving the push-pull rod 506 to move.

[0032] By setting up a movable plate 505, a push-pull rod 506, and a drive assembly, the drive assembly can drive the push-pull rod 506 to move. When the push-pull rod 506 moves, it can drive the movable plate 505 to move synchronously. When the movable plate 505 moves, the air supply pipe 509 can realize the suction and delivery of air to the fixed airbag 404. While adjusting the compression force of the fixed airbag 404, the fixed airbags 404 at different positions can be inflated in sequence to realize the replacement of the fixed position.

[0033] For details, please refer to the appendix. Figure 4 -Appendix Figure 6 The drive assembly includes a rotating circular frame 502 rotatably mounted inside the drive cavity of the mounting bracket 501. The rotating circular frame 502 is equipped with two opposing push rods 508. A guide frame 507 is fixedly mounted on the top of the push rod 506 and is sleeved on the outer surface of the adjacent push rods 508.

[0034] By setting up a rotating circular frame 502, a push rod 508, and a guide frame 507, when the rotating circular frame 502 rotates, it can drive the two push rods 508 to rotate as well. While the push rods 508 rotate as well, they drive the guide frame 507 to move up and down alternately. At the same time, the movement of the guide frame 507 drives the moving plate 505 to move up and down synchronously through the push-pull rod 506, so as to realize the alternating air extraction and inflation of the two air delivery cavities, thereby simultaneously realizing the support of the fixed airbags 404 at different points and improving the convenience of operation.

[0035] For details, please refer to the appendix. Figure 5 A worm gear 503 is fixedly installed on the side of the rotating round frame 502. A worm 504 is rotatably installed inside the drive cavity of the mounting bracket 501. A throttle is fixed to the top of the worm 504, and the worm gear 503 and the worm 504 are meshed with each other.

[0036] By setting up a worm 504, a worm wheel 503, and a throttle, holding the throttle drives the worm 504 to rotate. As the worm 504 rotates, it meshes with the worm wheel 503, thereby driving the worm wheel 503 to rotate. The rotation of the worm wheel 503 drives the rotating frame 502 to move, realizing the rotation of the rotating frame 502. At the same time, by utilizing the meshing between the worm wheel 503 and the worm 504, a self-locking function can be achieved for the worm wheel 503 and the rotating frame 502, effectively preventing the rotating frame 502 from shaking.

[0037] For details, please refer to the appendix. Figure 8and attached Figure 9 The elastic adjustment mechanism 6 includes a winding roller 601 rotatably installed inside the connecting block 201. An elastic band 602 is wound on the outer surface of the winding roller 601. The end of the elastic band 602 is fixedly connected to the thigh fixation bracket 1. The thigh fixation bracket 1 is slidably installed inside the connecting block 201. The connecting block 201 is provided with a locking component for locking the winding roller 601.

[0038] By setting up a winding roller 601 and an elastic band 602, the patient's leg exerts force against the elasticity of the elastic band 602, which helps the patient to carry out elastic rehabilitation training. Rotating the winding roller 601 realizes the operation of opening and closing the elastic band 602, which can control the tension and elasticity of the elastic band 602. In this way, the training intensity of the patient can be adjusted according to the patient's recovery status, thus improving the versatility of use.

[0039] For details, please refer to the appendix. Figure 9 The locking assembly includes a limiting bracket 603 fixedly installed on the outer surface of the connecting block 201, an mounting plate 607 fixedly installed at the end of the winding roller 601, at least one multi-stage telescopic rod 605 fixedly installed on the side of the mounting plate 607, a rotating bracket 604 that meshes with the limiting bracket 603 fixedly installed at the end of the multi-stage telescopic rod 605, and an elastic element 606 fixedly installed between the rotating bracket 604 and the mounting plate 607.

[0040] By setting up a limiting bracket 603, a rotating bracket 604, a mounting plate 607, a multi-stage telescopic rod 605, and an elastic element 606, the multi-stage telescopic rod 605, which is a rectangular telescopic rod, supports and guides the limiting bracket 603. Pulling the limiting bracket 603 out of engagement with the rotating bracket 604 allows adjustment of the rotation angle of the limiting bracket 603. The rotating limiting bracket 603 drives the mounting plate 607 to rotate via the multi-stage telescopic rod 605. The rotation of the mounting plate 607 drives the winding roller 601 to rotate synchronously, thereby adjusting the angle of the winding roller 601. After adjusting to a certain angle, the elastic element 606 drives the rotating bracket 604 to engage with the limiting bracket 603, thereby limiting the rotation bracket 604 and further positioning the winding roller 601, effectively improving stability.

[0041] For details, please refer to the appendix. Figure 8 Multiple fixed airbags 404 are fixedly mounted with sensing patches 405 on their sides. The thigh fixation brace 1 and the calf fixation brace 3 are equipped with built-in gait sensors, and the connection between connecting block 1 201 and connecting block 2 202 is equipped with an angle sensor.

[0042] By setting up sensor patches 405, gait sensors, and angle sensors, data reports such as the patient's muscle exertion, gait, and knee joint range of motion are monitored, helping patients and doctors to intuitively judge the progress of rehabilitation and avoid blind training.

[0043] For details, please refer to the appendix. Figure 2 Two connecting blocks 201 are fitted with elastic air cushions 7 on the side near the knee, and the elastic air cushions 7 are equipped with control air valves.

[0044] Working principle: The thigh fixation brace 1 and the lower leg fixation brace 3 are initially fixed to the patient's leg using fixing strap 1 402 and fixing strap 2 403. The worm gear 504 is rotated by holding the handle. As the worm gear 504 rotates, it meshes with the worm wheel 503, which in turn drives the worm wheel 503 to rotate. The rotation of the worm wheel 503 drives the rotating frame 502 to move. When the rotating frame 502 rotates, it can drive the two push rods 508 to rotate as well. As the push rods 508 rotate, they drive the guide frame 507 to move up and down alternately. The movement of the guide frame 507 drives the moving plate 505 to move up and down synchronously through the push-pull rod 506, realizing the alternating suction and inflation of the two air delivery cavities. When the moving plate 505 moves, the suction and inflation of the fixed airbag 404 can be realized through the air delivery pipe 509. While adjusting the compression force of the fixed airbag 404, the fixed airbags 404 at different positions can be inflated in turn to realize the replacement of the fixation point. By gripping the handle 204, the blocking rod 205 is moved, causing the blocking rod 205 to disengage from the fixing hole. By rotating the rotating plate 207, the blocking rod 205 is inserted into the fixing hole at different positions, which can adjust the position of the blocking rod 205. This allows for limiting the rotation angle between the thigh fixation brace 1 and the lower leg fixation brace 3. The angle can be adjusted according to the patient's own condition to forcibly restrict the angle of the patient's movement and protect the patient's leg. The elastic band 602 allows the patient's leg muscles to exert force against its elasticity, aiding in elastic rehabilitation training. Pulling the limiting bracket 603 disengages it from the rotating bracket 604, adjusting its rotation angle. The rotating limiting bracket 603, via a multi-stage telescopic rod 605, drives the mounting plate 607 to rotate. The rotation of the mounting plate 607 causes the winding roller 601 to rotate synchronously, adjusting its angle. The rotation of the winding roller 601 controls the release and retraction of the elastic band 602, controlling its tension and elasticity, and thus adjusting the patient's training intensity according to their recovery status.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rehabilitation medical device brace structure for treating a knee joint, characterized by, The utility model relates to a kind of fixed brace for lower limbs, including thigh fixed brace (1) and shank fixed brace (3), the thigh fixed brace (1) is equipped with knee flexion angle limiting mechanism (2) with shank fixed brace (3) between, and the thigh fixed brace (1) and shank fixed brace (3) are equipped with fixed anti-skid mechanism (4) on, the fixed anti-skid mechanism (4) includes fixedly installed in the fixed buckle (401) of thigh fixed brace (1) and shank fixed brace (3) side, the fixed buckle (401) of both sides is respectively installed with fixed bandage one (402) and fixed bandage two (403) of cooperation use, The fixed bandage two (403) is equipped with a backing plate, and the inner wall of the thigh fixed brace (1) and shank fixed brace (3) is detachably installed with a breathable lining (406), the breathable lining (406) and the inner wall of the backing plate are equipped with a plurality of fixed air bags (404), and the fixed air bag (404) is installed with a sensing patch (405), the thigh fixed brace (1) and shank fixed brace (3) are equipped with a fixed adjustment mechanism (5) for controlling a plurality of fixed air bags (404), The thigh fixed brace (1) and shank fixed brace (3) are equipped with elastic adjustment mechanism (6) for patient rehabilitation training between.

2. A therapeutic medical device brace structure for the knee joint according to claim 1, characterized in that: The knee flexion angle limiting mechanism (2) includes a connecting block one (201) installed on the thigh fixed brace (1) and a connecting block two (202) installed on the shank fixed brace (3), the connecting block one (201) is rotatably connected with the connecting block two (202), the connecting block one (201) is fixedly installed with an adjustment block (203), and a rotating plate (207) is rotatably installed on the connecting block one (201), a blocking rod (205) is slidably installed on the rotating plate (207), an end of the blocking rod (205) is fixedly installed with a handle (204), a plurality of fixing holes are formed in the rotating plate (207) for the blocking rod (205) to insert, and an elastic member one (206) is installed between the handle (204) and the rotating plate (207).

3. The therapeutic medical device brace structure for the knee joint according to claim 1, wherein: The fixed adjustment mechanism (5) includes a mounting bracket (501) fixedly installed on the side of the thigh fixed brace (1) and the shank fixed brace (3), the mounting bracket (501) is divided into a driving cavity and two air supply cavities by a plurality of partition plates, an air extraction assembly is arranged in the air supply cavities, two annular multi-way air supply pipes (509) are arranged on the thigh fixed brace (1) and the shank fixed brace (3), the fixed air bags (404) are connected with the air inlets of the upper and lower air supply pipes (509) in sequence, and the air outlets of the two air inlets are fixedly connected with the two air supply cavities of the mounting bracket (501).

4. The therapeutic medical device brace structure for the knee joint according to claim 3, wherein: The air extraction assembly includes two moving plates (505) slidably arranged in the air supply cavities, a push-pull rod (506) is fixedly installed on the surface of the moving plate (505), the end of the push-pull rod (506) extends into the driving cavity, and a driving assembly is arranged in the driving cavity for driving the push-pull rod (506) to move.

5. A therapeutic medical device brace configuration for the knee according to claim 4, wherein: The driving assembly comprises a rotating round frame (502) rotatably installed inside a driving cavity of a mounting frame (501), the rotating round frame (502) is provided with two oppositely arranged push rods (508), the top end of the push rod (506) is fixedly provided with a guide frame (507), and the guide frame (507) is sleeved on the outer surface of the adjacent push rod (508).

6. A therapeutic medical device brace configuration for the knee according to claim 5, wherein: The side surface of the rotating round frame (502) is fixedly provided with a worm gear (503), the inside of the mounting frame (501) is rotatably provided with a worm (504) inside the driving cavity, the top end of the worm (504) is fixedly provided with a rotating handle, and the worm gear (503) and the worm (504) are arranged in meshing relationship.

7. The therapeutic medical device brace configuration for the knee joint according to claim 1, wherein: The elastic force adjusting mechanism (6) comprises a winding roller (601) rotatably installed in the inside of the connecting block one (201), the outer surface of the winding roller (601) is provided with an elastic band (602), the end of the elastic band (602) is fixedly connected with the thigh fixing support (1), the thigh fixing support (1) is slidably arranged in the inside of the connecting block one (201), and the connecting block one (201) is provided with a locking assembly for locking the winding roller (601).

8. A therapeutic medical device brace configuration for the knee according to claim 7, characterized in that: The locking assembly comprises a limiting clamping frame (603) fixedly installed on the outer surface of the connecting block one (201), the end of the winding roller (601) is fixedly provided with a mounting plate (607), at least one multi-stage telescopic rod (605) is fixedly installed on the side surface of the mounting plate (607), the end of the multi-stage telescopic rod (605) is fixedly provided with a rotating clamping frame (604) arranged in meshing relationship with the limiting clamping frame (603), and an elastic member two (606) is fixedly installed between the rotating clamping frame (604) and the mounting plate (607).

9. A therapeutic medical device brace configuration for the knee according to claim 8, wherein: The side surface of the plurality of fixed air bags (404) is fixedly provided with an induction patch (405), the thigh fixing support (1) and the calf fixing support (3) are provided with an embedded gait sensor, and the connecting portion of the connecting block one (201) and the connecting block two (202) is provided with an angle sensor.

10. The therapeutic medical device brace configuration for rehabilitation of knee joint as claimed in claim 8 wherein: The side surface of the plurality of fixed air bags (404) is fixedly provided with an induction patch (405), the thigh fixing support (1) and the calf fixing support (3) are provided with an embedded gait sensor, and the connecting portion of the connecting block one (201) and the connecting block two (202) is provided with an angle sensor. Two elastic air cushions (7) are installed on the side of the connecting block one (201) close to the knee, and the elastic air cushion (7) is provided with a control air valve.

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