Leg joint rehabilitation treatment device for orthopedics department

Abstract

The invention specifically discloses an orthopedic leg joint rehabilitation treatment device which comprises a base, and stress direction changing mechanisms are arranged on the two sides of the top of the base; the stress direction change mechanism comprises a mounting seat, an electric cylinder, a fixed barrel, a fixed shaft, a change plate, an arc-shaped groove, a sliding rod and a fixed table; the side of the top of the base is connected to the bottom of a mounting base through a screw, the top of the mounting base is hinged to the cylinder barrel end of an electric cylinder through a pin shaft, an output rod of the electric cylinder is rotationally connected to the bottom of the outer wall of a sliding rod in the vertical direction, and the upper portion of the outer wall of the sliding rod is slidably connected into an arc-shaped groove. Through the use of the active joint bending mechanism, a patient can actively participate in leg bending training, the strength and flexibility of leg muscles can be increased, the contraction and extension capacity of the muscles can be improved, meanwhile, the electric auxiliary joint bending mechanism in the electric assisted therapy mode can provide larger movement amplitude and strength output, and the rehabilitation effect of the patient is improved. The increase of the muscle strength and the improvement of the rehabilitation effect are promoted.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of orthopedics, in particular to a leg joint rehabilitation treatment device for orthopedics. BACKGROUND

[0002] The leg joint rehabilitation treatment device is a device for rehabilitation treatment and recovery of leg joint function, and recovery after leg joint injury or surgery is very important in the field of orthopedics, which helps patients recover normal motor function, reduces pain and improves quality of life.

[0003] A postoperative rehabilitation training device is disclosed in a Chinese patent with the patent application number 202222536704, and the disclosure content is a bed plate, and lower limb training components and waist and abdomen training components at both ends of the bed plate, the lower limb training components include a leg training plate rotatably connected at one end of the bed plate, and a fixing assembly for fixing a lower leg is arranged on the leg training plate; the waist and abdomen training components include a backrest plate rotatably connected at the other end of the bed plate and a handrail arranged above the bed plate, and an angle adjusting assembly is arranged on the lower side of the backrest plate.

[0004] However, the leg rehabilitation training device has a relatively single training mode, mainly focusing on rotating the leg training plate to a horizontal position and then restoring it, and the single training mode cannot fully activate all muscle groups of the leg, limits the improvement of leg joint rehabilitation effect, and the single training mode cannot adapt to the leg rehabilitation needs and ability levels of different individuals, and the injury conditions, rehabilitation stages and muscle strength of each patient are different, which cannot meet the rehabilitation needs of patients. SUMMARY

[0005] In view of the problems in the prior art, the purpose of the present application is to provide a leg joint rehabilitation treatment device for orthopedics, which can actively participate in leg bending training through the use of the active joint bending mechanism, increase the strength and flexibility of the leg muscles, improve the contraction and stretching ability of the muscles, and at the same time, the electric auxiliary joint bending mechanism in the electric therapy mode can provide greater movement amplitude and power output, promote the growth of muscle strength and improve the rehabilitation effect.

[0006] In order to achieve the above purpose, the technical scheme of the present application is:

[0007] A leg joint rehabilitation treatment device for orthopedics is designed, which comprises

[0008] A base is arranged on the top of the base, and a stress changing mechanism is arranged on both sides of the base;

[0009] The stress changing mechanism comprises a mounting seat, an electric cylinder, a fixed cylinder, a fixed shaft, a changing plate, an arc-shaped groove, a sliding rod and a fixed table;

[0010] The top side screw of the base is connected to the bottom of the mounting seat, the top of the mounting seat is hingedly connected to the cylinder end of the electric cylinder through a pin shaft, the output rod of the electric cylinder is vertically rotatably connected to the bottom of the outer wall of the sliding rod, the upper part of the outer wall of the sliding rod is slidably connected in the arc-shaped groove, the arc-shaped groove is arranged on the top side of the variable plate, the other side of the variable plate is fixed to the adjacent side of the fixed table, the bottom middle part of the fixed table is fixedly connected to the top of the fixed shaft, the bottom of the fixed shaft is rotatably connected to the top of the fixed cylinder, and the fixed cylinder is mounted on the base;

[0011] Two said stress variable mechanism fixed table is equipped with active joint bending mechanism;

[0012] The active joint bending mechanism comprises an arc-shaped shell, a guide pulley, a guide sliding groove one, a guide plate, a support, a linkage plate, a foot shoe, a negative electromagnet and a positive electromagnet.

[0013] The guide sliding groove one is arranged in the interior and one side of the arc-shaped shell, the outer wall of the guide pulley is slidably connected in the interior of the guide sliding groove one, and the outer wall of the guide plate penetrates one side of the guide sliding groove one and is fixed to one side of the guide pulley.

[0014] The bottom of the support is screw-connected to the outer wall of the guide plate, the top of the support is hingedly connected to the bottom side of the foot shoe, the side of the guide plate is provided with a recess, the outer wall of the linkage plate is embedded and slid in the recess of the guide plate, and the negative electromagnet and the positive electromagnet are mounted on the side of the linkage plate.

[0015] One side of the arc-shaped shell is provided with an electric auxiliary joint bending mechanism.

[0016] Further, the electric auxiliary joint bending mechanism comprises a stepping motor, an L-shaped long swing arm, an L-shaped short swing arm and a side support plate.

[0017] The stepping motor is screw-connected to the outer side of the side support plate, the side of the side support plate is fixedly connected to the arc-shaped inner wall of the arc-shaped shell, the middle upper part of the side support plate is provided with a bearing seat, the output shaft of the stepping motor is rotatably connected to the side support plate through the bearing seat, the output shaft end of the stepping motor is fixedly connected to one side of the L-shaped long swing arm, and one side of the L-shaped short swing arm is fixedly connected to one side of the guide plate.

[0018] Further, the electric auxiliary joint bending mechanism further comprises an electromagnetic plate, a guide sliding groove two, a metal plate and a sliding block one.

[0019] The guide sliding groove two is arranged on the arc-shaped outer wall of the arc-shaped shell, the metal plate is laid on the inner wall of the guide sliding groove two, the outer wall of the sliding block one is embedded and slidably connected in the interior of the guide sliding groove two, the electromagnetic plate is mounted on one side of the sliding block one, the adjacent sides of the L-shaped long swing arm and the L-shaped short swing arm are each electromagnetically attracted to one half of the electromagnetic plate, and the electric auxiliary joint bending mechanism further comprises a sliding block two and a proximity sensor.

[0020] The outer wall of the second sliding block is embedded and slidingly connected to the inner wall of the second guide sliding groove on the other side, and the proximity sensor is installed at the bottom of the second sliding block.

[0021] Further, the bottom of the foot pedal shoe is provided with a foot support.

[0022] Further, the negative electromagnet and the positive electromagnet in the two active joint bending mechanisms are installed on the linkage plates in an interleaved manner, and the negative electromagnet and the positive electromagnet on the linkage plates are started by the control group, so that the corresponding negative electromagnet and positive electromagnet of the two active joint bending mechanisms are electromagnetically attracted, thereby stably connecting the two linkage plates and the guide plate, the negative electromagnet of one active joint bending mechanism and the positive electromagnet of the other active joint bending mechanism are symmetrical, the negative electromagnet of one active joint bending mechanism and the negative electromagnet of the other active joint bending mechanism are symmetrical, the two negative electromagnets are controlled by the control group to repel each other, and the attracted negative electromagnet and positive electromagnet are released, thereby repelling the two linkage plates from each other, and the front side of the second guide sliding block is provided with a threaded groove, and the second guide sliding block is connected with a bolt rod through the threaded groove.

[0023] Further, the top of the arc-shaped shell of one of the active joint bending mechanisms is provided with a time controller, and the top of the arc-shaped shell of the other active joint bending mechanism is provided with a control group.

[0024] Compared with the prior art, the leg joint rehabilitation treatment device provided by the application has a unique structure:

[0025] I. Enhance muscle strength and flexibility: the use of the active joint bending mechanism allows patients to actively participate in leg bending training, which can increase the strength and flexibility of leg muscles, improve muscle contraction and stretching ability, and the electric auxiliary joint bending mechanism in the electric therapy mode can provide greater movement amplitude and power output, promote muscle strength growth and improve rehabilitation effect.

[0026] II. Improve joint coordination and stability: the movement coordination and stress regulation of the active joint bending mechanism can improve the coordination and stability of the leg joints, which is very important for joint rehabilitation, especially in the case of recovering normal movement mode and control ability after injury or surgery.

[0027] III. Provide personalized rehabilitation training: the various modes and functions of the application can provide personalized rehabilitation training programs according to the specific conditions and rehabilitation needs of patients, and patients can choose different modes according to their own ability and rehabilitation progress to meet their specific rehabilitation goals and needs.

[0028] IV. Promoting Balanced Development of Damaged and Healthy Legs: Through synchronous use, this invention can help provide additional force and training to the healthy leg, thereby promoting balanced development of damaged and healthy legs. It is particularly beneficial for patients with unilateral injuries or those undergoing rehabilitation, and can avoid functional imbalance and discomfort caused by long-term unbalanced use. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Appendix Figure 1 A front view of an orthopedic leg joint rehabilitation device;

[0031] Appendix Figure 2 This is a structural diagram of the force-shifting mechanism;

[0032] Appendix Figure 3 Assembly drawings for the active joint bending mechanism and the electrically assisted joint bending mechanism;

[0033] Appendix Figure 4 For the appendix Figure 3 Enlarged view of point A in the image;

[0034] Appendix Figure 5 For the appendix Figure 3 A structural diagram of the arc-shaped shell from one perspective;

[0035] Appendix Figure 6 This is a structural diagram of an active joint bending mechanism;

[0036] Appendix Figure 7 This is a structural diagram of the arc-shaped shell from another perspective.

[0037] In the diagram: 10. Force-directing mechanism; 11. Base; 12. Mounting seat; 13. Electric cylinder; 14. Fixed cylinder; 15. Fixed shaft; 16. Variable plate; 17. Arc groove; 18. Slide rod; 19. Fixed platform; 20. Active joint bending mechanism; 21. Arc shell; 22. Guide pulley; 23. Guide groove one; 24. Guide plate; 25. Bracket; 26. Linkage plate; 27. Foot pedal; 271. Foot rest; 28. Negative electromagnet; 29. ​​Positive electromagnet; 30. Electric assisted joint bending mechanism; 31. Stepper motor; 32. L-shaped long swing arm; 33. Electromagnetic plate; 34. L-shaped short swing arm; 35. Side support plate; 36. Guide groove two; 37. Metal plate; 38. Slider one; 39. Slider two; 311. Proximity sensor; 312. Bolt rod; 41. Time controller; 42. Control group. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 7 As shown, an orthopedic leg joint rehabilitation device according to a preferred embodiment of the present invention includes:

[0040] Base 11, with force-direction shifting mechanisms 10 provided on both sides of the top of base 11;

[0041] The force-shifting mechanism 10 includes a mounting base 12, an electric cylinder 13, a fixed cylinder 14, a fixed shaft 15, a shifting plate 16, an arc groove 17, a slide rod 18, and a fixed platform 19.

[0042] The top side screw of the base 11 is connected to the bottom of the mounting base 12. The top of the mounting base 12 is hinged to the cylinder end of the electric cylinder 13 by a pin. The output rod of the electric cylinder 13 is vertically rotatably connected to the bottom of the outer wall of the slide rod 18. The upper part of the outer wall of the slide rod 18 is slidably connected to the arc groove 17. The arc groove 17 is opened on one side of the top of the variable plate 16. The other side of the variable plate 16 is fixed to the adjacent side of the fixed platform 19. The bottom center of the fixed platform 19 is fixedly connected to the top of the fixed shaft 15. The bottom of the fixed shaft 15 is rotatably connected to the top of the fixed cylinder 14. The fixed cylinder 14 is mounted on the base 11.

[0043] Both of the fixed platforms 19 of the force-direction shifting mechanisms 10 are equipped with active joint bending mechanisms 20;

[0044] The active joint bending mechanism 20 includes an arc-shaped shell 21, a guide pulley 22, a guide groove 23, a guide plate 24, a bracket 25, a linkage plate 26, a foot pedal 27, a negative electromagnet 28, and a positive electromagnet 29.

[0045] The guide groove 23 is opened inside the arc-shaped shell 21 and connected to one side. The outer wall of the guide pulley 22 is slidably connected to the inside of the guide groove 23. The outer wall of the guide plate 24 passes through one side of the guide groove 23 and is fixed to one side of the guide pulley 22.

[0046] The bottom of the bracket 25 is screwed to the outer wall of the guide plate 24, and the top of the bracket 25 is hinged to the bottom side of the foot shoe 27. The guide plate 24 has a groove on its side, and the outer wall of the linkage plate 26 is embedded in and slides inside the groove of the guide plate 24. The negative electromagnet 28 and the positive electromagnet 29 are installed on the side of the linkage plate 26.

[0047] An electrically assisted joint bending mechanism 30 is installed on one side of the arc-shaped shell 21;

[0048] Based on the above embodiments, the electrically assisted joint bending mechanism 30 includes a stepper motor 31, an L-shaped long swing arm 32, an L-shaped short swing arm 34, and a side support plate 35.

[0049] Stepper motor 31 is screwed to the outside of side support plate 35. The side of side support plate 35 is fixedly connected to the arc-shaped inner wall of arc-shaped shell 21. A bearing seat is installed in the upper middle part of side support plate 35. The output shaft of stepper motor 31 is rotatably connected to side support plate 35 through bearing seat. The output shaft end of stepper motor 31 is fixedly connected to one side of long swing arm 32, and one side of short swing arm 34 is fixedly connected to one side of guide plate 24. The electric assisted joint bending mechanism 30 also includes electromagnetic plate 33, guide groove 2 36, metal plate 37 and slider 1 38. Guide groove 2 36 is formed On the arc-shaped outer wall of the arc-shaped shell 21, a metal plate 37 is laid on the inner wall of the guide groove 36. The outer wall of the slider 38 is embedded and slidably connected to the inside of the guide groove 36. An electromagnetic plate 33 is installed on one side of the slider 38. The adjacent sides of the L-shaped long swing arm 32 and the L-shaped short swing arm 34 are each electromagnetically attracted to half of the electromagnetic plate 33. The electric assisted joint bending mechanism 30 also includes a slider 39 and a proximity sensor 311. The outer wall of the slider 39 is embedded and slidably connected to the other side of the inner wall of the guide groove 36. The proximity sensor 311 is installed at the bottom of the slider 39.

[0050] The control group 42 activates the electromagnetic plate 33, and then one side of the long swing arm 32 is placed against the front of the electromagnetic plate 33 and electromagnetically attracted to make the short swing arm 34, the electromagnetic plate 33, the fixed slider 38, and the long swing arm 32 fixed synchronously. Then, the control group 42 activates the stepper motor 31, and the output shaft of the stepper motor 31 drives the long swing arm 32 to rotate around the arc of the arc shell 21. Then, the electromagnetic plate 33 and the fixed slider 38 drive the short swing arm 34 synchronously, and then the short swing arm 34 drives the guide plate 24 to move synchronously. In this way, the electric joint bending mechanism 30 achieves the effect of electric therapy.

[0051] Based on the above embodiment, the bottom of the footrest 27 is equipped with a foot support 271. The patient's foot is put into the footrest 27, ensuring that the toes are located at the front of the footrest 27, and the footrest 27 is firmly fixed on the foot. The foot support 271 supports the bottom of the foot.

[0052] Based on the above embodiment, the negative electromagnet 28 and positive electromagnet 29 of the two active joint bending mechanisms 20 are installed in staggered positions on the linkage plate 26. The negative electromagnet 28 and positive electromagnet 29 located on the linkage plate 26 are activated by the control group 42, so that the negative electromagnet 28 and positive electromagnet 29 corresponding to the two active joint bending mechanisms 20 generate electromagnetic attraction, thereby making the two linkage plates 26 and the guide plate 24 stably connected.

[0053] Based on the above embodiment, the negative electromagnet 28 of one active joint bending mechanism 20 and the positive electromagnet 29 of the other active joint bending mechanism 20 are symmetrical. The negative electromagnet 28 of one active joint bending mechanism 20 and the negative electromagnet 29 of the other active joint bending mechanism 20 are symmetrical. By controlling the other two sides of the negative electromagnet 28 of the linkage plate 26 in the two active joint bending mechanisms 20 by the control group 42, the two negative electromagnets 28 generate like-pole repulsion and release the negative electromagnet 28 and positive electromagnet 29 that are held in adsorption, thereby causing the two linkage plates 26 to repel each other.

[0054] Based on the above embodiment, the front side of the guide slider 39 is provided with a threaded groove, and the guide slider 39 is connected to the bolt rod 312 by the threaded groove bolt.

[0055] Based on the above embodiments, a time controller 41 is installed on the top of the arc-shaped shell 21 of one active joint bending mechanism 20, and a control group 42 is installed on the top of the arc-shaped shell 21 of another active joint bending mechanism 20. By setting the time controller 41 and controlling the proximity sensor 311, different training effects can be achieved. For example, setting a shorter time for the time controller 41 and adjusting the slider 2 39 to a farther position can achieve a smaller degree of bending and sliding length of the leg joint. Conversely, setting a longer time for the time controller 41 and adjusting the slider 2 39 to a closer position can achieve a greater degree of bending and sliding length of the leg joint, so as to meet the rehabilitation needs of patients and gradually improve rehabilitation ability.

[0056] In practice, the patient can first sit in a suitable position such as a high stool or the edge of the bed to facilitate the use of the orthopedic leg joint rehabilitation device. The patient's foot is put into the footrest 27, ensuring that the toes are located at the front of the footrest 27, and the footrest 27 is firmly fixed on the foot. The footrest 27 can be adjusted through the hinge of the bracket 25 to adapt to different patients' foot sizes and comfort, ensuring that the foot is supported firmly and comfortably.

[0057] This device offers multiple modes of joint rehabilitation training and therapy:

[0058] Firstly, the active joint bending mechanism 20 enables the patient to actively exert leg strength. Specifically, by bending the leg, the foot pedal 27 drives the guide plate 24 to slide on one side of the guide groove 23, and drives the guide pulley 22 to slide in an arc shape in the guide groove 23 inside the arc-shaped shell 21. At the same time, the L short swing arm 34 slides simultaneously. Then, the other side of the L short swing arm 34 drives the electromagnetic plate 33 and the slider 38 to slide in the guide groove 36. Through the synchronous limiting of the guide groove 23 and the guide groove 36, the stability of the leg position can be guaranteed.

[0059] Through the above operations, the active joint bending mechanism 20 enables patients to perform leg bending training independently. This training can increase the strength and flexibility of leg muscles and improve the coordination and stability of joint movement.

[0060] In the above, the two active joint bending mechanisms 20 can be used synchronously or separately. Specifically, in the synchronous mode, the negative electromagnet 28 and positive electromagnet 29 located on the linkage plate 26 are activated by the control group 42, so that the negative electromagnet 28 and positive electromagnet 29 corresponding to the two active joint bending mechanisms 20 generate electromagnetic attraction, thereby making the two linkage plates 26 and the guide plate 24 stably connected. At this time, the force of the two active joint bending mechanisms 20 is synchronized. For example, if the patient's left leg is healthy, it can help the right leg recover and increase the force, and can synchronize the bending of the leg joints.

[0061] In this mode, when the patient uses the device for training, the joints of both legs will be subjected to corresponding resistance and load simultaneously. This mode is suitable for situations where patients need to perform rehabilitation training for both legs at the same time. When the patient's right leg is performing joint bending training, the left leg, as the healthy side, can provide additional force. In the synchronous use mode, the resistance and load of the two active joint bending mechanisms 20 are coordinated with each other.

[0062] Secondly, the separation mode: by controlling the negative electromagnets 28 on the other two sides of the linkage plate 26 in the two active joint bending mechanisms 20 through the control group 42, the two negative electromagnets 28 repel each other, and release the negative electromagnets 28 and positive electromagnets 29 that are holding each other in place. This causes the two linkage plates 26 to repel each other and slide inside the groove of the guide plate 24. At this time, the two active joint bending mechanisms 20 are separated, and the left and right legs can be used separately, or only one of the active joint bending mechanisms 20 can be used.

[0063] In this mode, rehabilitation training can be carried out by using the active joint bending mechanism 20 of the left or right leg alone, or by choosing to use only one of the active joint bending mechanisms 20, and to carry out individualized training according to the patient's rehabilitation needs.

[0064] By switching between synchronous and separate use modes, the device can flexibly meet the different rehabilitation needs of patients. The synchronous use mode can provide coordinated training of both legs and additional load on the healthy leg, while the separate use mode allows for independent training of the injured leg or the use of only one of the active joint bending mechanisms 20. This flexibility can be adjusted according to the patient's specific situation and treatment progress to achieve better rehabilitation results.

[0065] Secondly, the electrically assisted joint bending mechanism 30 enables passive rehabilitation training of the patient's leg. Specifically, the control group 42 activates the electromagnetic plate 33, and then one side of the long swing arm 32 is placed against the front of the electromagnetic plate 33 and electromagnetically attracted to make the short swing arm 34, the electromagnetic plate 33, the fixed slider 38, and the long swing arm 32 fixed synchronously. Then, the control group 42 activates the stepper motor 31, and the output shaft of the stepper motor 31 drives the long swing arm 32 to rotate around the arc of the arc shell 21. Then, the electromagnetic plate 33 and the fixed slider 38 drive the short swing arm 34 synchronously, and then the short swing arm 34 drives the guide plate 24 to move synchronously. Thus, the electrically assisted joint bending mechanism 30 achieves the effect of electric therapy.

[0066] The electric assistive therapy can provide active control over the patient's leg and is suitable for patients who need to rehabilitate through passive movement. With the assistance of the electric joint bending mechanism 30, patients can achieve better rehabilitation results and improve muscle function.

[0067] In the above, the electric assisted joint bending mechanism 30 can be controlled by the timer 41. The control time of the timer 41 is set to control the forward and reverse rotation time of the stepper motor 31. By setting different time settings, the degree of leg bending can be controlled. For example, setting it to 3 seconds will allow bending and sliding at one-third of the arc shell 21. At the same time, the degree of bending and sliding can be controlled by the use of the proximity sensor 311. For example, the position of slider 2 39 in the guide groove 2 36 can be adjusted at will within the guide groove 2 36. Then, the bolt rod 312 is rotated to fix it on the metal plate 37 in the guide groove 2 36. By controlling the threshold of the proximity sensor 311, when slider 1 38 approaches slider 2 39, the proximity sensor 311 controls the stop, thus controlling the degree of leg bending.

[0068] By setting the timer 41 and controlling the proximity sensor 311, different training effects can be achieved. For example, setting a shorter timer 41 and adjusting the slider 39 to a farther position can achieve a smaller degree of bending and sliding length of the leg joint. Conversely, setting a longer timer 41 and adjusting the slider 39 to a closer position can achieve a greater degree of bending and sliding length of the leg joint, thereby meeting the patient's rehabilitation needs and gradually improving rehabilitation ability.

[0069] Third, by changing the angle between the two active joint bending mechanisms 20 through the force-shifting mechanism 10, rehabilitation training can be carried out on different force points of the patient's leg. Specifically, the control group 42 controls the start of the electric cylinder 13 to push its output rod, which in turn slides and pulls the displacement inside the arc groove 17 through the slide rod 18, causing the shifting plate 16 to drive the fixed platform 19 to move synchronously. In turn, the fixed platform 19 changes the angle of the active joint bending mechanism 20, which can make the patient's leg tilt outward or inward, thereby changing the force on the leg rehabilitation training.

[0070] By changing the direction of the leg's tilt, the force points of leg rehabilitation training can be altered. When the patient's leg tilts to one side, the corresponding force points change, causing different muscle groups to receive different loads and training stimuli. Targeted rehabilitation training can then be conducted on specific muscle groups, which helps improve joint function, strengthen muscle strength, and enhance motor control and stability.

[0071] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An orthopedic leg joint rehabilitation device, characterized in that, Include: The base, the top of both sides is provided with stress to change mechanism; The stress to change mechanism includes mounting seat, electric cylinder, fixed cylinder, fixed shaft, change plate, arc slot, slide bar and fixed table; The top side of the base is screwed to the bottom of the mounting seat, the top of the mounting seat is hinged to the cylinder end of the electric cylinder through the pin shaft, the output rod of the electric cylinder is connected to the bottom of the outer wall of the slide bar in the vertical direction, the outer wall of the slide bar is connected to the inside of the arc slot, the arc slot is opened on the top side of the change plate, the other side of the change plate is fixed to the adjacent side of the fixed table, the bottom of the fixed table is fixedly connected to the top of the fixed shaft, the bottom of the fixed shaft is rotatably connected to the top of the fixed cylinder, and the fixed cylinder is installed on the base; Two said fixed table of stress to change mechanism is installed with initiative joint bending mechanism; The initiative joint bending mechanism includes an arc-shaped shell, a guide pulley, a guide groove one, a guide plate, a support, a linkage plate, a foot pedal shoe, a negative electromagnet and a positive electromagnet; The guide groove one is opened in the inside and one side of the arc-shaped shell, the outer wall of the guide pulley is slidably connected to the inside of the guide groove one, and the outer wall of the guide plate penetrates one side of the guide groove one and is fixed with one side of the guide pulley; The bottom of the support is screwed to the outer wall of the guide plate, the top of the support is hinged to the bottom side of the foot pedal shoe, the side of the guide plate is provided with a groove, and the outer wall of the linkage plate is embedded and slidably connected to the inside of the groove of the guide plate; The negative electromagnet and the positive electromagnet in one said initiative joint bending mechanism are installed on the side of the linkage plate, and two negative electromagnets are installed on the side of the linkage plate of another said initiative joint bending mechanism; One side of the arc-shaped shell is provided with an electric auxiliary joint bending mechanism.

2. The orthopedic leg joint rehabilitation device according to claim 1, wherein, The electric auxiliary joint bending mechanism includes a stepping motor, an L-shaped long swing arm, an L-shaped short swing arm and a side support plate; The stepping motor is screwed to the outer side of the side support plate, the side of the side support plate is fixedly connected to the arc-shaped inner wall of the arc-shaped shell, the middle upper part of the side support plate is provided with a bearing seat, the output shaft of the stepping motor is rotatably connected to the side support plate through the bearing seat, the output shaft end of the stepping motor is fixedly connected to one side of the L-shaped long swing arm, and one side of the L-shaped short swing arm is fixedly connected to one side of the guide plate.

3. The orthopedic leg joint rehabilitation device according to claim 2, wherein, The electric auxiliary joint bending mechanism further includes an electromagnetic plate, a guide groove two, a metal plate and a sliding block one; The guide groove two is opened in the arc-shaped outer wall of the arc-shaped shell, the metal plate is laid in the inner wall of the guide groove two, the outer wall of the sliding block one is embedded and slidably connected to the inside of the guide groove two, the electromagnetic plate is installed on one side of the sliding block one, and the adjacent sides of the L-shaped long swing arm and the L-shaped short swing arm are each electromagnetically attracted to one half of the electromagnetic plate.

4. The orthopedic leg joint rehabilitation device according to claim 3, wherein, The electric auxiliary joint bending mechanism further includes a sliding block two and a proximity sensor; The outer wall of the sliding block two is embedded and slidably connected to the other side of the inner wall of the guide groove two, and the proximity sensor is installed on the bottom of the sliding block two.

5. The orthopedic leg joint rehabilitation device according to claim 1, wherein, The bottom of the foot pedal shoe is provided with a foot support.

6. The orthopedic leg joint rehabilitation device according to claim 1, wherein, The positions of the negative electromagnets and the positive electromagnets in the two said initiative joint bending mechanisms are staggered.

7. The orthopedic leg joint rehabilitation device according to claim 6, wherein, The negative electromagnet of one said active joint bending mechanism and the positive electromagnet of another active joint bending mechanism are symmetrical, and the negative electromagnet of one said active joint bending mechanism and the negative electromagnet of another active joint bending mechanism are symmetrical.

8. The orthopedic leg joint rehabilitation device according to claim 3, wherein, The front side of the guide sliding block two is provided with a threaded groove, and the guide sliding block two is bolt-connected with a bolt rod through the threaded groove.

9. The orthopedic leg joint rehabilitation device according to claim 1, wherein, The top of the arc-shaped shell of one said active joint bending mechanism is provided with a time controller.

10. The orthopedic leg joint rehabilitation device according to claim 1, wherein, The top of the arc-shaped shell of another said active joint bending mechanism is provided with a control group.

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