Joint surgery postoperative rehabilitation training device

By designing an adjustable-angle joint surgery postoperative rehabilitation training device, the problem of existing equipment being unable to adapt to the training posture of patients who have just undergone major surgery has been solved. This enables safe and gradual rehabilitation training while in bed, effectively preventing complications and promoting the recovery of bodily functions.

CN122141196APending Publication Date: 2026-06-05TIANJIN TAIDA HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN TAIDA HOSPITAL
Filing Date
2026-04-21
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Most existing rehabilitation training equipment for joint surgery requires patients to sit or move to a specific chair for training, which is difficult to adapt to patients who have just undergone major surgery and are physically weak. Furthermore, it cannot flexibly adjust the training posture, increasing wound tension and the risk of falls, thus missing the best window of early mobilization.

Method used

A rehabilitation training device for joint surgery was designed. The angle of the training bed and the training device can be adjusted by an angle adjustment device, so that the patient can carry out rehabilitation training in a supine position, gradually increasing the weight on the legs, simulating the gradual angle adaptation process from lying down to sitting. The device includes a support seat, a training bed, an angle adjustment device and a training device, and the angle adjustment is achieved by using a telescopic rod, a slider and a lead screw assembly.

Benefits of technology

Initiating rehabilitation procedures with minimal risk can effectively combat the decline in physical function caused by prolonged bed rest, smoothly transition to higher-intensity sitting or standing training, reduce pain and the risk of falls, and improve the patient's rehabilitation outcomes.

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Abstract

The application provides a joint post-surgery rehabilitation training device, which comprises a supporting seat, a training bed, an angle adjusting device and a training device, wherein the training bed is movably arranged on the top of the supporting seat through the angle adjusting device; the angle adjusting device comprises two supporting arms, an extension rod and a sliding block; and the training device comprises a supporting plate, a rehabilitation device, a first lead screw assembly and a second lead screw assembly; the joint post-surgery rehabilitation training device can drive the sliding block to move linearly along the two guide rods through the extension rod, so that the training bed pivotally arranged on the sliding block is rotated under the influence of the two supporting arms, the inclination angle of the training bed is adjusted, the patient can gradually change from full lying to half lying, the weight borne by the patient's legs is gradually increased, the rehabilitation program is started under the lowest risk, the problem of body function decline caused by long-term bed rest is effectively resisted, and smooth transition is realized for subsequent higher-intensity sitting or standing training.
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Description

Technical Field

[0001] This invention relates to the field of postoperative rehabilitation, and more particularly to a rehabilitation training device for joint surgery. Background Technology

[0002] Following joint surgery, patients typically require a period of bed rest to promote tissue healing. However, prolonged bed immobilization can lead to a range of complications, including muscle atrophy, decreased muscle strength, joint stiffness, reduced cardiopulmonary function, and impaired balance—a comprehensive decline in physical function. Therefore, scientific, systematic, and safe early postoperative rehabilitation training is crucial for restoring joint function, preventing complications, improving patients' quality of life, and accelerating their return to normal life.

[0003] Currently, commonly used equipment for rehabilitation training after lower limb joint surgery (such as hip and knee joints) includes bicycles (ergometers). However, existing training methods have certain limitations: most devices require patients to be seated or transferred to a specific chair for training. This is a difficult and risky challenge for patients who have just undergone major surgery, are weak, experience significant pain, or have limited mobility. Forcing oneself to sit up may increase wound tension, trigger pain, cause orthostatic hypotension, and even pose a risk of falls. Consequently, some patients are forced to postpone their rehabilitation process due to their inability to tolerate seated training, missing the optimal window for early mobilization.

[0004] While some simple devices exist that can be used in a supine position, they are often limited in function and cannot flexibly adjust the training posture according to the patient's recovery stage and tolerance. A fixed supine position is not suitable for all training movements, nor can it simulate the gradual angular adaptation process from lying down to sitting up. Summary of the Invention

[0005] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0006] Therefore, one objective of this invention is to provide a rehabilitation training device for post-articular surgery, which adjusts the angle of the training bed and the training device through an angle adjustment device, so that the patient can start rehabilitation training in a comfortable and safe supine position. The device can flexibly adjust the angle of the bed, allowing the patient to gradually progress from a completely supine position to a semi-reclining position, gradually increasing the weight on the patient's legs, thereby initiating the rehabilitation program with minimal risk, effectively combating the decline in physical function caused by prolonged bed rest, and smoothly transitioning to subsequent higher-intensity sitting or standing training.

[0007] To achieve the above objectives, the first aspect of the present invention provides a rehabilitation training device for postoperative joint surgery, comprising a support base, a training bed, an angle adjustment device, and a training device. The training bed is movably mounted on top of the support base via the angle adjustment device. The angle adjustment device includes two support arms, a telescopic rod, and a slider. The two support arms are pivotally connected at both ends to the support base and the training bed on opposite sides. The telescopic rod is fixedly mounted on the support base, and one end of the telescopic rod is connected to the slider. One end of the slider is movably mounted on the support base, and the other end is pivotally connected to both ends of the training bed. The training device includes a support plate, a rehabilitation device, a first lead screw assembly, and a second lead screw assembly. The support plate is movably mounted on the training bed near the slider via the first lead screw assembly. The rehabilitation device is movably mounted on the support plate away from the training bed via the second lead screw assembly. The first lead screw assembly is rotatably mounted on the training bed, and its moving end is connected to the support plate. The second lead screw assembly is rotatably mounted on the support plate, and its moving end is connected to the rehabilitation device.

[0008] In addition, the joint surgery postoperative rehabilitation training device proposed above according to the present invention may also have the following additional technical features: Specifically, the support base includes two support blocks and two guide rods, wherein the two support blocks are respectively fixedly mounted on both ends of the two guide rods; and the bottom of the slider is respectively sleeved on the two guide rods.

[0009] Specifically, the training bed has two handles mirror-imagely arranged on the side away from the support seat; a limiting groove is also provided on the side of the training bed close to the support seat; and the support plate is movably disposed within the limiting groove.

[0010] Specifically, the slider is H, and the top of the slider is located on both sides of the support plate.

[0011] Specifically, the support plate is L-shaped, and the second lead screw assembly is rotatably disposed on the inner surface of the short side plate of the support plate.

[0012] Specifically, the first lead screw assembly includes a first lead screw and a first slider, wherein the first lead screw is rotatably disposed on the side of the training bed near the support seat; the first slider is movably disposed on the outer surface of the first lead screw, and the first slider is connected to the long side plate of the support plate.

[0013] Specifically, the second lead screw assembly includes a movable plate, a guide rail, a second lead screw, and a second slider, wherein: the movable plate is fixedly mounted on the rehabilitation device and movably mounted on the guide rail; the guide rail is fixedly mounted on the inner surface of the short side plate of the support plate; the second lead screw is rotatably mounted on the support plate and is located on one side of the guide rail; the second slider is movably mounted on the second lead screw and is connected to the movable plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention is a rehabilitation training device for postoperative joint surgery. It can drive a slider to make linear reciprocating motion along two guide rods through a telescopic rod, so that the training bed pivotally connected on the slider is rotated by the two support arms, thereby adjusting the tilt angle of the training bed. This allows the patient to gradually progress from lying flat to semi-lying, gradually increasing the weight on the patient's legs, thereby starting the rehabilitation program with the lowest risk, effectively combating the decline in physical function caused by long-term bed rest, and smoothly transitioning to subsequent higher-intensity sitting or standing training.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of a postoperative rehabilitation training device for joint surgery according to an embodiment of the present invention. Figure 2 This is a schematic diagram of another type of joint surgery postoperative rehabilitation training device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a training bed structure for postoperative rehabilitation training equipment in joint surgery according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an angle adjustment device for a postoperative rehabilitation training device for joint surgery according to an embodiment of the present invention, located on a support base. Figure 5 This is a schematic diagram of the structure of a rehabilitation training device for postoperative joint surgery according to an embodiment of the present invention, with the rehabilitation device positioned on a support plate; Figure 6 This is a schematic diagram of the structure of a rehabilitation training device for postoperative joint surgery according to an embodiment of the present invention, wherein the rehabilitation device is located on the second lead screw assembly.

[0017] Figure label: 1. Support base; 11. Support block; 12. Guide rod; 2. Training bed; 21. Handle; 22. Limiting groove; 3. Angle adjustment device; 31. Support arm; 32. Telescopic rod; 33. Slider; 4. Training device; 41. Support plate; 42. Rehabilitation device; 43. First lead screw assembly; 431. First lead screw; 432. First slider; 44. Second lead screw assembly; 441. Moving plate; 442. Guide rail; 443. Second lead screw; 444. Second slider. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] The following describes a protective structure for swapping batteries in two-wheeled vehicles according to an embodiment of the present invention, with reference to the accompanying drawings.

[0020] like Figures 1-6 As shown, an embodiment of the present invention provides a rehabilitation training device for joint surgery, which may include: a support base 1, a training bed 2, an angle adjustment device 3, and a training device 4.

[0021] The training bed 2 is mounted on top of the support base 1 via an angle adjustment device 3.

[0022] It should be noted that the support base 1 includes two support blocks 11 and two guide rods 12.

[0023] Two support blocks 11 are fixedly mounted on the two ends of the two guide rods 12, and the bottom of the slider 33 is respectively sleeved on the two guide rods 12.

[0024] It is understandable that the rectangular support base 1, composed of two support blocks 11 and two guide rods 12, can effectively provide support and prevent the device from tipping over due to stress. Furthermore, the two guide rods 12 limit the movement of the slider 33, ensuring that the slider 33 can only move along the two guide rods 12.

[0025] It should be noted that the bottom of each of the two support blocks 11 is equipped with a caster wheel with a self-locking structure (not shown in the figure). When the workers need to move the device, they can push the device to drive the caster wheel to rotate, thereby achieving the purpose of moving the device. The caster wheel is a publicly available technology and will not be described in detail here.

[0026] It should be noted that two handles 21 are mirror-image arranged on the side of the training bed 2 away from the support seat 1, and a limit groove 22 is also provided on the side of the training bed 2 close to the support seat 1, and the support plate 41 is movably arranged in the limit groove 22.

[0027] Understandably, when a patient lies on the training bed 2, they can hold the handles 21 on both sides to maintain body stability, while the limiting groove 22 can support and limit the support plate 41, so that the support plate 41 can only move along the limiting groove 22 when it moves.

[0028] It should be noted that if the patient's hand strength is insufficient, the grip 21 can be replaced with a seat belt to achieve the purpose of stabilizing the patient. The seat belt is a mature technology that has been disclosed and will not be described in detail here.

[0029] The angle adjustment device 3 includes two support arms 31, a telescopic rod 32, and a slider 33.

[0030] Two support arms 31 are pivotally connected at both ends to the support base 1 and the training bed 2 respectively. The telescopic rod 32 is fixedly installed on the support base 1, and one end of the telescopic rod 32 is connected to the slider 33. One end of the slider 33 is movable on the support base 1, and the other end is pivotally connected to both ends of the training bed 2 respectively.

[0031] It should be noted that slider 33 is H-shaped, and the top of slider 33 is located on both sides of support plate 41.

[0032] It is understandable that when the telescopic rod 32 is working, it will drive the slider 33 connected to it to move linearly along the two guide rods 12, so that the slider 33 pushes or pulls the training bed 2 through the pivot connection with the training bed 2, thereby causing the training bed 2 to rotate linearly along the pivot connection with the slider 33 under the influence of the two support arms 31, thereby achieving the purpose of adjusting the tilt angle of the training bed 2.

[0033] The training device 4 includes a support plate 41, a rehabilitation device 42, a first lead screw assembly 43, and a second lead screw assembly 44.

[0034] The support plate 41 is movably mounted on the end of the training bed 2 near the slider 33 via the first lead screw assembly 43. The rehabilitation device 42 is movably mounted on the end face of the support plate 41 away from the training bed 2 via the second lead screw assembly 44. The first lead screw assembly 43 is rotatably mounted on the training bed 2, and the moving end of the first lead screw assembly 43 is connected to the support plate 41. The second lead screw assembly 44 is rotatably mounted on the support plate 41, and the moving end of the second lead screw assembly 44 is connected to the rehabilitation device 42.

[0035] It should be noted that the support plate 41 is L-shaped, and the second lead screw assembly 44 is rotatably mounted on the inner surface of the short side plate of the support plate 41.

[0036] The first lead screw assembly 43 includes a first lead screw 431 and a first slider 432.

[0037] The first lead screw 431 is rotatably mounted on the training bed 2 near the support base 1. The first slider 432 is movably mounted on the outer surface of the first lead screw 431 and is connected to the long side plate of the support plate 41.

[0038] Understandably, the height of the rehabilitation device 42 can be adjusted by the second lead screw assembly 44, while rotating the first lead screw 431 will drive the support plate 41 to move inside the limiting groove 22 through the first slider 432, thereby adjusting the distance between the rehabilitation device 42 set on the support plate 41 and the training bed 2, so that patients of different heights can use this device.

[0039] It should be noted that the second lead screw assembly 44 includes a moving plate 441, a guide rail 442, a second lead screw 443, and a second slider 444.

[0040] The movable plate 441 is fixedly mounted on the rehabilitation device 42 and is movably mounted on the guide rail 442. The guide rail 442 is fixedly mounted on the inner surface of the short side plate of the support plate 41. The second lead screw 443 is rotatably mounted on the support plate 41 and is located on one side of the guide rail 442. The second slider 444 is movably mounted on the second lead screw 443 and is connected to the movable plate 441.

[0041] It is understandable that rotating the second lead screw 443 will cause the second slider 444 to move linearly along the second lead screw 443, thereby causing the second slider 444 to move the moving plate 441 together. The rehabilitation device 42 is fixedly mounted on the moving plate 441, so rotating the second lead screw 443 will cause the rehabilitation device 42 to move along the second lead screw 443, thereby adjusting the height of the rehabilitation device 42.

[0042] It should be noted that the rehabilitation device 42 is a postoperative recovery bicycle or bicycle ergometer, both of which are publicly available and mature technologies, and will not be elaborated on here.

[0043] It should be further noted that the training bed 2 and the support plate 41 are respectively provided with corresponding mounting blocks to support the first lead screw 431 and the second lead screw 443 that are matched therewith to rotate.

[0044] The operating procedure for this device is as follows: When a patient needs rehabilitation training after surgery, the staff moves the device to the patient. At this time, the training bed 2 is in a horizontal position. Then, the staff helps the patient lie on the top of the training bed 2 and puts his / her feet on the working end of the rehabilitation device 42.

[0045] If the patient is too tall and it is inconvenient for them to exert force when stepping on the rehabilitation device 42, the first lead screw 431 can be rotated to drive the first slider 432 to move along the first lead screw 431. This will cause the first slider 432 to drive the support plate 41 connected to it to move inside the limiting groove 22, thereby adjusting the distance between the rehabilitation device 42 and the training bed 2. Once the distance is appropriate,

[0046] The patient grips the handles 21 on both sides of the body with both hands and uses their lower limbs to drive the rehabilitation device 42 to work, thereby achieving rehabilitation training for the lower limb joints. At this time, the patient is in a lying position, and the lower limbs are less affected by the body weight, thus preventing the patient from experiencing pain in the lower limb joints due to the influence of body weight.

[0047] Once the patient has gradually adapted to rehabilitation training in a lying position, the staff can activate the telescopic rod 32 to retract, thereby causing the telescopic rod 32 to move the slider 33 along the two guide rods 12. This causes the moving slider 33 to apply a lateral force to the training bed 2, which is pivotally connected to it. At this time, the force on the training bed 2 will cause the two support arms 31 to rotate along the pivotal connection with the support seat 1, thereby causing the training bed 2 to tilt.

[0048] As the tilt angle of training bed 2 increases, the lower limbs of the patient lying on it begin to bear more body weight, thus facilitating a smooth transition to subsequent, more intense standing posture training.

[0049] Once the patient's postoperative recovery reaches a certain level, the training bed 2 can be placed in a horizontal position. By rotating the second lead screw 443, the second slider 444 can be moved along the second lead screw 443, thereby causing the movable plate 441 fixed on the second slider 444 and the rehabilitation device 42 mounted on it to move together along the guide rail 442, so that the rehabilitation device 42 gradually moves away from the training bed 2.

[0050] At this time, the patient faces the training bed 2 and holds the two handles 21 with both hands, stepping on the rehabilitation device 42. At this time, the patient's lower limbs need to bear most of the body weight, and holding the two handles 21 with both hands can maintain the stability of the patient's body, so that the body can exert force to step on the rehabilitation device 42 for rehabilitation training.

[0051] In summary, the present invention provides a rehabilitation training device for postoperative joint surgery. A telescopic rod drives a slider to reciprocate linearly along two guide rods, causing the training bed, pivotally connected to the slider, to rotate under the influence of two support arms. This adjusts the tilt angle of the training bed, allowing the patient to gradually progress from a fully supine position to a semi-reclining position, gradually increasing the weight on the patient's legs. This initiates the rehabilitation program with minimal risk, effectively combating the decline in physical function caused by prolonged bed rest, and facilitating a smooth transition to subsequent, more intensive sitting or standing training.

[0052] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rehabilitation training device for joint surgery, characterized in that, It includes a support base (1), a training bed (2), an angle adjustment device (3), and a training device (4), wherein, The training bed (2) is movably mounted on top of the support base (1) via the angle adjustment device (3); The angle adjustment device (3) includes two support arms (31), a telescopic rod (32), and a slider (33), wherein, The two support arms (31) are pivotally connected at both ends and disposed on both sides of the support base (1) and the training bed (2); The telescopic rod (32) is fixedly mounted on the support base (1), and one end of the telescopic rod (32) is connected to the slider (33); One end of the slider (33) is movably mounted on the support base (1), and the other end is pivotally connected to both sides of the end of the training bed (2); The training device (4) includes a support plate (41), a rehabilitation device (42), a first lead screw assembly (43), and a second lead screw assembly (44), wherein; The support plate (41) is movably mounted on the training bed (2) near the slider (33) via the first lead screw assembly (43); The rehabilitation device (42) is movably mounted on the end face of the support plate (41) away from the training bed (2) via the second lead screw assembly (44); The first lead screw assembly (43) is rotatably mounted on the training bed (2), and the moving end of the first lead screw assembly (43) is connected to the support plate (41); The second lead screw assembly (44) is rotatably mounted on the support plate (41), and the moving end of the second lead screw assembly (44) is connected to the rehabilitation device (42).

2. The postoperative rehabilitation training device for joint surgery according to claim 1, characterized in that, The support base (1) includes two support blocks (11) and two guide rods (12), wherein; The two support blocks (11) are respectively fixedly mounted on both ends of the two guide rods (12); The bottom of the slider (33) is respectively fitted onto the two guide rods (12).

3. The postoperative rehabilitation training device for joint surgery according to claim 1, characterized in that, The training bed (2) has two handles (21) mirror-imagely arranged on the side away from the support seat (1); The training bed (2) also has a limiting groove (22) on the side near the support seat (1); The support plate (41) is movably disposed within the limiting groove (22).

4. The postoperative rehabilitation training device for joint surgery according to claim 1, characterized in that, The slider (33) is H, and the top of the slider (33) is located on both sides of the support plate (41).

5. The postoperative rehabilitation training device for joint surgery according to claim 1, characterized in that, The support plate (41) is L-shaped, and the second lead screw assembly (44) is rotatably disposed on the inner surface of the short side plate of the support plate (41).

6. The postoperative rehabilitation training device for joint surgery according to claim 1, characterized in that, The first lead screw assembly (43) includes a first lead screw (431) and a first slider (432), wherein, The first lead screw (431) is rotatably mounted on the training bed (2) near the support seat (1); The first slider (432) is movably disposed on the outer surface of the first lead screw (431), and the first slider (432) is connected to the long side plate of the support plate (41).

7. The postoperative rehabilitation training device for joint surgery according to claim 1, characterized in that, The second lead screw assembly (44) includes a movable plate (441), a guide rail (442), a second lead screw (443), and a second slider (444), wherein; The movable plate (441) is fixedly mounted on the rehabilitation device (42), and the movable plate (441) is movably mounted on the guide rail (442); The guide rail (442) is fixedly mounted on the inner surface of the short side plate of the support plate (41); The second lead screw (443) is rotatably mounted on the support plate (41), and the second lead screw (443) is located on one side of the guide rail (442); The second slider (444) is movably mounted on the second lead screw (443), and the second slider (444) is connected to the moving plate (441).