Rehabilitation chair integrating sitting and standing assisting and joint motion range training

Abstract

The invention discloses a rehabilitation chair integrating sitting and standing assistance and joint motion range training, and relates to the technical field of medical equipment, the rehabilitation chair comprises a base, and a bottom plate is slidably arranged on one side of the base; the adjusting assembly is assembled at the upper end of the base and used for adjusting the sitting posture and the standing posture of the patient; the movable assembly is assembled at the upper end of the bottom plate and used for carrying out flexion and extension training on knee joints of the legs of the patient; according to the rehabilitation chair integrating sitting and standing assistance and joint motion range training, the angle and height of the seat are adjusted through the adjusting assembly, a patient can complete sitting and standing conversion more naturally and more comfortably, and body discomfort or fatigue caused by improper postures is reduced; meanwhile, joint motion range training is carried out through a transition posture converted from sitting to standing, the training is closer to a real life scene, integration of neuromuscular control and functional strength is promoted, and the rehabilitation effect is better.

Description

Technical Field

[0001] This invention relates to medical device technology, specifically to a rehabilitation chair that integrates sitting and standing assistance with joint range of motion training. Background Technology

[0002] The human body has numerous joints, such as the hip, knee, ankle, and wrist. When a person jumps, runs, or bears weight, the knee joint endures tremendous impact and load, making knee injury one of the most common types of joint injuries in the body. Patients with knee injuries often need to rest in bed for extended periods. After prolonged bed rest, rehabilitation training is also necessary; however, the patient's knee joint remains relatively fragile even at this stage.

[0003] Chinese invention patent CN114177587A discloses a commonly used knee joint rehabilitation exercise aid device after orthopedic surgery. This device effectively assists patients in rehabilitation exercises using a drive slide and a movable base, ensuring the device's rehabilitation capabilities. A rotating shaft and foot support allow for full movement of the foot and ankle joints during rehabilitation, enhancing the device's rehabilitation effect while complementing training. A display and speakers facilitate convenient remote communication with professional rehabilitation personnel to assist patients in rehabilitation training, reducing rehabilitation costs while ensuring the device's effective use. A lifting base and adjusting shaft allow for adjustment of the seat height and backrest angle, ensuring the device's comfort.

[0004] Existing equipment only focuses on the positional transfer itself and does not have the function of actively guiding the lower limb joints to perform regular and controllable flexion and extension training. For patients with stiff joints or insufficient muscle strength, simply relying on assistance to stand up does not effectively improve their joint range of motion and muscle coordination, thus leading to poor training results. Therefore, a rehabilitation chair integrating sitting and standing assistance and joint range of motion training was developed. Summary of the Invention

[0005] The purpose of this invention is to provide a rehabilitation chair that integrates sitting and standing assistance with joint range of motion training, in order to overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rehabilitation chair integrating sitting and standing assistance and joint range of motion training, including a base, wherein a bottom plate is slidably disposed on one side of the base;

[0007] An adjustment component, which is mounted on the upper end of the base, is used to adjust the patient's sitting and standing postures;

[0008] An active component, which is assembled at the upper end of the base plate, is used to perform knee flexion and extension exercises on the patient's leg.

[0009] The adjustment component includes a fixing block that engages with the base, a protective block that is symmetrically slidably disposed at the end of the fixing block, and a support plate that is fixedly disposed at the end of the protective block.

[0010] A support column is fixedly installed at the end of the fixed block and on one side of the protective block, and a support groove is provided on one side of the support column.

[0011] A sliding block is slidably provided on the inner wall of the support groove, and an adjustment plate is rotatably provided at the end of the sliding block. An adjustment groove is provided on one side of the adjustment plate, and the inner wall of the adjustment groove is engaged with the outer surface of the protective block.

[0012] An extension plate is fixedly provided on one side of the support column, an extension block is fixedly provided at the end of the extension plate, and a guide plate is fixedly provided at the end of the extension block.

[0013] The guide plate has a guide groove at its end, the guide groove has an L-shaped cross-section, a guide block one is slidably disposed on the inner wall of the guide groove, and a guide block two is slidably disposed on the inner wall of the guide groove, and the cross-sections of the guide block one and the guide block two are perpendicular to each other.

[0014] The end of the first guide block is rotatably connected to the end of the adjusting plate, and the end of the second guide block is rotatably connected to the middle position of the end of the adjusting plate.

[0015] As a further optimization of the present invention, a baffle is fixedly provided on one side of the fixing block, and a backrest is rotatably provided at the end of the baffle.

[0016] As a further optimization of the present invention, the movable component includes a disc that fits against the base plate, a connecting block is fixedly provided at the middle position of the end of the disc, a telescopic member is fixedly provided at the end of the connecting block, and a support plate is rotatably provided at the end of the telescopic member.

[0017] As a further optimization of the present invention, a movable plate one is uniformly rotatably arranged around the connecting block at the upper end of the disc, and a movable plate two is rotatably arranged at the end of the movable plate one, and the end of the movable plate two is rotatably connected to the end of the support plate.

[0018] As a further optimization of the present invention, a docking block is fixedly provided at the end of the disk, and a protective plate is rotatably provided at the end of the docking block.

[0019] As a further optimization of the present invention, a limiting plate is slidably disposed on one side of the protective plate, and a limiting groove is formed on one side of the limiting plate, the inner wall of the limiting groove being slidably connected to the outer surface of the protective plate.

[0020] As a further optimization of the present invention, a connecting rod is rotatably provided on the inner wall of the limiting plate, a positioning rod is rotatably provided at the end of the connecting rod, and a transmission rod is rotatably provided at the end of the positioning rod.

[0021] As a further optimization of the present invention, a second protective plate is rotatably provided at the end of the transmission rod, and a positioning plate is slidably provided on the outer surface of the second protective plate. A positioning groove is provided on one side of the positioning plate, and the inner wall of the positioning groove is slidably connected to the outer surface of the positioning plate.

[0022] As a further optimization of the present invention, the inner wall of the positioning plate is rotatably connected to the middle position of the outer surface of the positioning rod.

[0023] Compared with existing technologies, the rehabilitation chair integrating sitting and standing assistance and joint range of motion training provided by this invention has the following beneficial effects:

[0024] By adjusting the angle and height of the seat using adjustable components, patients can transition between sitting and standing more naturally and comfortably, reducing physical discomfort or fatigue caused by improper posture. At the same time, the transitional posture between sitting and standing allows for joint mobility training, which is closer to real-life scenarios and promotes the integration of neuromuscular control and functional strength, resulting in better rehabilitation outcomes.

[0025] By performing repetitive flexion and extension movements using active components, joint contractures can be prevented, synovial fluid circulation can be promoted, and patients with joint stiffness or insufficient muscle strength can be improved. This effectively improves their joint range of motion and muscle coordination, and effectively avoids the risk of secondary injury caused by excessive activity or improper posture. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the adjustment component structure provided in an embodiment of the present invention;

[0029] Figure 3 This is a cross-sectional view of the internal structure of the adjustment component provided in an embodiment of the present invention;

[0030] Figure 4 An exploded view of the adjustment component structure provided in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the active component structure provided in an embodiment of the present invention;

[0032] Figure 6 This is a cross-sectional view of the internal structure of an active component provided in an embodiment of the present invention;

[0033] Figure 7 This is a first exploded view of the active component structure provided in an embodiment of the present invention;

[0034] Figure 8 This is a second exploded view of the active component structure provided in an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Base; 2. Adjustment component; 3. Movable component; 11. Base plate; 21. Fixing block; 22. Protective block; 221. Support plate; 23. Support column; 231. Support groove; 24. Sliding block; 25. Adjustment plate; 251. Adjustment groove; 26. Extension plate; 27. Extension block; 28. Guide plate; 281. Guide groove; 282. Guide block one; 283. Guide block two; 29. ​​Baffle; 291. Backrest; 31. Disc; 32. Connecting block; 321. Telescopic component; 322. Support plate; 33. Movable plate one; 331. Movable plate two; 34. Connecting block; 35. Protective plate one; 36. Limiting plate; 361. Limiting groove; 37. Connecting rod; 371. Positioning rod; 372. Transmission rod; 38. Protective plate two; 39. Positioning plate; 391. Positioning groove. Detailed Implementation

[0037] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Example: Please refer to Figure 1 - Figure 8 A rehabilitation chair integrating sitting and standing assistance and joint range of motion training includes a base 1, and a base plate 11 is slidably installed on one side of the base 1.

[0040] In this scheme, the inner wall of the base 1 is equipped with components with telescopic function such as an electric telescopic rod, and is connected to an external control device. The electric telescopic rod drives the adjustment component 2, which is fixed at its end, to move up and down until it reaches the optimal position and then stops.

[0041] Meanwhile, a guide rail is provided on one side of the base plate 11, which limits the base plate 11 and allows it to move along the outer surface of the guide rail.

[0042] Furthermore, the adjustment component 2, which is assembled on the upper end of the base 1, is used to adjust the patient's sitting and standing postures; wherein, the adjustment component 2 includes a fixing block 21 that is snapped into the base 1, a protective block 22 is symmetrically slidably disposed at the end of the fixing block 21, and a support plate 221 is fixedly disposed at the end of the protective block 22.

[0043] In this embodiment, the sliding groove at the end of the fixed block 21 is slidably connected to the slider on the outer surface of the protective block 22, enabling the protective block 22 to slide symmetrically on the fixed block 21. This, in turn, drives the support plate 221 to adjust its position to accommodate the different hip widths of patients and provide a more fitting support. When the patient sits on the support plate 221, the protective block 22 can provide auxiliary restraint on both sides of the patient's hips, preventing the patient from shifting to the sides during sitting or standing.

[0044] Furthermore, a support column 23 is fixedly installed at the end of the fixing block 21 and on one side of the protective block 22, and a support groove 231 is provided on one side of the support column 23.

[0045] Specifically, the support column 23 provides a stable support foundation for the movement of the entire adjusting plate 25, and the support groove 231 provides a precise guide path for the sliding block 24, ensuring that the sliding block 24 can move stably along the length of the support column 23; at the same time, the inner wall of the support groove 231 can be provided with a wear-resistant coating to reduce the wear of the sliding block 24 during long-term sliding and extend the service life of the equipment.

[0046] The inner wall of the support groove 231 is provided with components such as an electric telescopic rod that have telescopic function, and the output end of the electric telescopic rod is connected to the end of the sliding block 24, thereby driving the sliding block 24 to move along the inner wall of the support groove 231.

[0047] Furthermore, a sliding block 24 is slidably provided on the inner wall of the support groove 231, and an adjustment plate 25 is rotatably provided at the end of the sliding block 24. An adjustment groove 251 is provided on one side of the adjustment plate 25, and the inner wall of the adjustment groove 251 is engaged with the outer surface of the protective block 22.

[0048] Specifically, when the sliding block 24 moves, it synchronously drives the adjusting plate 25, which is rotated at its end, to move. As a result, the entire adjusting plate 25 slowly changes from a horizontal state to an inclined rotation, tilting the part in contact with the patient upward, so that the patient changes from a sitting to a standing state.

[0049] One side of the protective block 22 is provided with bolts and other components for fixing. The protective block 22 is locked inside the adjustment groove 251 by bolts, and the support plate 221 of different specifications can be adjusted according to the actual situation.

[0050] Furthermore, an extension plate 26 is fixedly provided on one side of the support column 23, an extension block 27 is fixedly provided at the end of the extension plate 26, and a guide plate 28 is fixedly provided at the end of the extension block 27.

[0051] Specifically, the guide plate 28 is locked and supported by the extension plate 26 and the extension block 27, so that the guide plate 28 can be stably installed on one side of the support column 23, providing a reliable installation base for the sliding of the first guide block 282 and the second guide block 283.

[0052] Furthermore, a guide groove 281 is provided at the end of the guide plate 28. The cross-section of the guide groove 281 is L-shaped. A guide block 282 is slidably disposed on the inner wall of the guide groove 281. At the same time, a guide block 283 is slidably disposed on the inner wall of the guide groove 281. The cross-sections of the guide block 282 and the guide block 283 are perpendicular to each other.

[0053] Specifically, when the adjusting plate 25 moves, it synchronously drives the guide block 282 and guide block 283, which are rotatably connected to it, to move. This causes guide block 282 to move laterally along the guide groove 281, and guide block 283 to move longitudinally along the guide groove 281, thereby providing constraint and support for the adjusting plate 25. The end of guide block 282 is rotatably connected to the end of the adjusting plate 25, and the end of guide block 283 is rotatably connected to the middle position of the end of the adjusting plate 25.

[0054] The two work together to form a composite motion trajectory, thereby precisely controlling the rotation angle and posture of the adjustment plate 25, ensuring the stability and safety of the patient during the sitting-to-standing transition. At the same time, the L-shaped structure design of the guide groove 281 integrates the horizontal and vertical guide paths into one, allowing guide block 1 282 and guide block 283 to achieve their respective sliding functions within the same groove, which saves installation space and ensures the coordination of movement.

[0055] The vertical cross-section design of guide block 1 282 and guide block 2 283 ensures that they will not interfere with each other during sliding and move independently along the preset direction, further improving the accuracy of the movement of the adjustment plate 25.

[0056] Furthermore, a baffle 29 is fixedly provided on one side of the fixed block 21, and a backrest 291 is rotatably provided at the end of the baffle 29.

[0057] Specifically, one side of the baffle 29 is equipped with a telescopic component such as an electric telescopic rod, which is used to adjust the angle of the backrest 291 to make it suitable for different people.

[0058] Furthermore, the movable component 3, which is assembled on the upper end of the base plate 11, is used to perform knee flexion and extension training on the patient's leg; the movable component 3 includes a disc 31 that fits against the base plate 11, a connecting block 32 is fixedly provided at the middle position of the end of the disc 31, a telescopic member 321 is fixedly provided at the end of the connecting block 32, and a support plate 322 is rotatably provided at the end of the telescopic member 321.

[0059] In this embodiment, the movement of the base plate 11 causes the disc 31 to move closer to or further away from the patient to accommodate different leg lengths. The connecting block 32 provides a stable mounting platform for the telescopic component 321. The telescopic component 321 can be an electric push rod or a cylinder, etc. The telescopic movement of its output end can directly drive the support plate 322 to rise and fall. The upper surface of the support plate 322 can be provided with a soft pad or anti-slip texture to improve the comfort and stability of the patient's leg placement and prevent slippage during training.

[0060] When a patient performs knee flexion and extension exercises, they place their foot on the support plate 322. The extension and retraction of the telescopic component 321 can drive the foot joint to rotate, thereby realizing the movement of the foot joint.

[0061] An electric telescopic rod is rotatably mounted on the upper end of the base plate 11, and the end of the electric telescopic rod is rotatably mounted on the lower end of the disc 31. The electric telescopic rod drives the disc 31 to perform circular motion to simulate the key bending state during walking.

[0062] Furthermore, a movable plate 33 is uniformly rotatably arranged around the connecting block 32 at the upper end of the disc 31, and a movable plate 331 is rotatably arranged at the end of the movable plate 33. The end of the movable plate 331 is rotatably connected to the end of the support plate 322.

[0063] Specifically, the end of the movable plate 33 can be equipped with a motor or other power output device to drive the movable plate 331 to move, thereby synchronously driving the support plate 322 to rotate, making it suitable for training needs in different scenarios.

[0064] Furthermore, a docking block 34 is fixedly provided at the end of the disc 31, and a protective plate 35 is rotatably provided at the end of the docking block 34.

[0065] Specifically, the end of the docking block 34 is provided with a clamp or other fixing component to secure the docking block 34 to the end of the protective plate 35. At the same time, the end of the protective plate 35 is provided with a bearing or other rotating component to ensure adaptability to different scenarios.

[0066] Furthermore, a limiting plate 36 is slidably provided on one side of the protective plate 35, and a limiting groove 361 is provided on one side of the limiting plate 36. The inner wall of the limiting groove 361 is slidably connected to the outer surface of the protective plate 35.

[0067] Specifically, one side of the protective plate 35 is provided with a strap or other fixing component to lock the patient's leg. At the same time, the limiting groove 361 on the limiting plate 36 limits the movement of the protective plate 35 to ensure the stability of the protective plate 35.

[0068] Furthermore, a connecting rod 37 is rotatably mounted on the inner wall of the limiting plate 36, and a positioning rod 371 is rotatably mounted at the end of the connecting rod 37. Simultaneously, a transmission rod 372 is rotatably mounted at the end of the positioning rod 371. A second protective plate 38 is rotatably mounted at the end of the transmission rod 372, and a positioning plate 39 is slidably mounted on the outer surface of the second protective plate 38. A positioning groove 391 is formed on one side of the positioning plate 39, and the inner wall of the positioning groove 391 is slidably connected to the outer surface of the positioning plate 39. The inner wall of the positioning plate 39 is rotatably connected to the middle position of the outer surface of the positioning rod 371.

[0069] Specifically, when the protective plate 38 is subjected to force, it synchronously drives the transmission rod 372, which is rotatably set at its end, to move, thereby driving the positioning rod 371 to rotate. Since the middle position of the outer surface of the positioning rod 371 is rotatably connected to the inner wall of the positioning plate 39, the positioning rod 371 drives the connecting rod 37, which is away from the transmission rod 372, to move, thereby driving the limiting plate 36 to move along the inner wall of the limiting groove 361.

[0070] When the patient's feet are placed on the support plate 322 and flexion and extension training is performed, the first protective plate 35 can fit against the patient's lower leg, while the second protective plate 38 corresponds to the thigh. Through the linkage of the two, the position can be automatically adjusted according to the flexion and extension angle of the leg, always providing stable lateral support to the leg, avoiding unnecessary shaking or deviation of the leg during training, and improving the safety and effectiveness of training.

[0071] The control device can choose a microcontroller as the control terminal. In this embodiment, the microcontroller is a typical embedded microcontroller unit, consisting of an arithmetic logic unit (ALU), a controller, memory, input / output devices, etc., essentially a miniature computer. Compared to general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its biggest advantage is its small size, allowing it to be placed inside the instrument, but it has limited storage capacity, simple input / output interfaces, and low power consumption.

[0072] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rehabilitation chair integrating sitting / standing assistance and joint range of motion training, characterized in that, Includes a base (1), and a bottom plate (11) is slidably disposed on one side of the base (1); Adjustment component (2), which is mounted on the upper end of the base (1), is used to adjust the patient's sitting and standing posture; The active component (3), which is mounted on the upper end of the base plate (11), is used to perform knee flexion and extension training on the patient's leg. The adjustment component (2) includes a fixing block (21) that is snapped into the base (1), a protective block (22) is symmetrically slidably disposed at the end of the fixing block (21), and a support plate (221) is fixedly disposed at the end of the protective block (22). A support column (23) is fixedly installed at the end of the fixed block (21) and on one side of the protective block (22), and a support groove (231) is provided on one side of the support column (23). The inner wall of the support groove (231) is slidably provided with a sliding block (24), and the end of the sliding block (24) is rotatably provided with an adjustment plate (25). An adjustment groove (251) is opened on one side of the adjustment plate (25), and the inner wall of the adjustment groove (251) is engaged with the outer surface of the protective block (22). An extension plate (26) is fixedly provided on one side of the support column (23), an extension block (27) is fixedly provided at the end of the extension plate (26), and a guide plate (28) is fixedly provided at the end of the extension block (27). The guide plate (28) has a guide groove (281) at its end. The cross-section of the guide groove (281) is L-shaped. A guide block 1 (282) is slidably disposed on the inner wall of the guide groove (281). At the same time, a guide block 2 (283) is slidably disposed on the inner wall of the guide groove (281). The cross-sections of the guide block 1 (282) and the guide block 2 (283) are perpendicular to each other. The end of the first guide block (282) is rotatably connected to the end of the adjusting plate (25), and the end of the second guide block (283) is rotatably connected to the middle position of the end of the adjusting plate (25).

2. The rehabilitation chair integrating sitting / standing assistance and joint range of motion training according to claim 1, characterized in that, A baffle (29) is fixedly provided on one side of the fixed block (21), and a backrest (291) is rotatably provided at the end of the baffle (29).

3. The rehabilitation chair integrating sitting / standing assistance and joint range of motion training according to claim 1, characterized in that, The active component (3) includes a disc (31) that fits against the base plate (11). A connecting block (32) is fixedly provided at the middle position of the end of the disc (31). A telescopic member (321) is fixedly provided at the end of the connecting block (32). A support plate (322) is rotatably provided at the end of the telescopic member (321).

4. The rehabilitation chair integrating sitting / standing assistance and joint range of motion training according to claim 3, characterized in that, The upper end of the disc (31) is uniformly rotatably arranged around the connecting block (32) with a movable plate one (33), and the end of the movable plate one (33) is rotatably arranged with a movable plate two (331), and the end of the movable plate two (331) is rotatably connected to the end of the support plate (322).

5. The rehabilitation chair integrating sitting / standing assistance and joint range of motion training according to claim 4, characterized in that, The end of the disc (31) is fixedly provided with a docking block (34), and the end of the docking block (34) is rotatably provided with a protective plate (35).

6. The rehabilitation chair integrating sitting / standing assistance and joint range of motion training according to claim 5, characterized in that, A limiting plate (36) is slidably provided on one side of the protective plate (35), and a limiting groove (361) is provided on one side of the limiting plate (36). The inner wall of the limiting groove (361) is slidably connected to the outer surface of the protective plate (35).

7. The rehabilitation chair integrating sitting / standing assistance and joint range of motion training according to claim 6, characterized in that, The inner wall of the limiting plate (36) is rotatably provided with a connecting rod (37), the end of the connecting rod (37) is rotatably provided with a positioning rod (371), and the end of the positioning rod (371) is rotatably provided with a transmission rod (372).

8. The rehabilitation chair integrating sitting / standing assistance and joint range of motion training according to claim 7, characterized in that, The end of the transmission rod (372) is rotatably provided with a second protective plate (38), and a positioning plate (39) is slidably provided on the outer surface of the second protective plate (38). A positioning groove (391) is provided on one side of the positioning plate (39), and the inner wall of the positioning groove (391) is slidably connected to the outer surface of the positioning plate (39).

9. The rehabilitation chair integrating sitting / standing assistance and joint range of motion training according to claim 8, characterized in that, The inner wall of the positioning plate (39) is rotatably connected to the middle position of the outer surface of the positioning rod (371).

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