Knee joint movement device for orthopedic rehabilitation

By designing a knee joint mobility device with a seat and adjustable sliding and lifting components, the problem of patients only being able to use it while standing has been solved, improving comfort and adaptability, and meeting the usage needs of patients of different heights.

CN223930365UActive Publication Date: 2026-02-24NINGXIA HUI AUTONOMOUS REGION PEOPLES HOSPITAL
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Patent Information

Application Number
CN202423028827.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-02-24
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

Existing knee joint mobility devices do not provide a seat, forcing patients to use them standing up, which is extremely inconvenient. They also have requirements for the patient's height and leg length, and cannot be adjusted to fit the patient's leg length, resulting in low practicality.

Method used

An orthopedic rehabilitation knee joint mobilization device was designed, comprising a base, a movable component, a sliding component, a lifting component, and a backrest component. By setting up a seat, a sliding component, and a lifting component, the device enables patients to perform knee flexion and extension exercises while sitting on the seat, and the seat height can be adjusted to accommodate patients of different heights.

Benefits of technology

It provides convenient chair use, can be adjusted according to the patient's leg length, improves comfort and recovery effect, adapts to patients of different heights, and enhances the practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223930365U_ABST
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Abstract

The utility model provides a knee joint movement device for orthopedic rehabilitation, which belongs to the field of orthopedic rehabilitation and comprises a base, a movable component is mounted at the top of the base, a sliding component is mounted on the movable component, a lifting component is mounted on the movable component, and a backrest component is mounted on the movable component. Through the arrangement of the movable assembly and the sliding assembly, during use, a patient sits on a seat and steps on two pedal rods, then a first hydraulic rod is started, and a movable rod is jacked to move slowly, so that the movable rod does circular motion along an arc-shaped rod, and meanwhile, a pulley slides in a movable groove; therefore, the knee of the patient can be bent and straightened, and the recovery effect and the use comfort are improved.
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Description

Technical Field

[0001] This utility model relates to the field of orthopedic rehabilitation, and more specifically, to a knee joint mobilizer for orthopedic rehabilitation. Background Technology

[0002] The knee joint is a crucial joint that determines the movement of the human leg, but it is easily damaged due to improper exercise, disease, accidents, and other reasons. Appropriate rehabilitation training is necessary during the treatment of knee joint injuries.

[0003] A search revealed that Chinese patent CN209253497U discloses "an orthopedic knee joint care device, which allows patients to perform knee flexion and extension rehabilitation exercises and massage the knee joint to promote blood circulation, improve blood flow, and relieve pain, thus achieving better rehabilitation results." However, it still has the following drawbacks:

[0004] Existing knee joint mobility devices do not provide a seat, forcing patients to use them standing up, which is extremely inconvenient. They also have requirements for the patient's height and leg length, and cannot be adjusted to fit the patient's leg length, resulting in low practicality.

[0005] Therefore, we made improvements and proposed a knee joint mobility device for orthopedic rehabilitation. Utility Model Content

[0006] The purpose of this invention is to address the problems of existing knee joint mobility devices that do not provide a seat, forcing patients to use them standing up, which is extremely inconvenient. They also have requirements for the patient's height and leg length and cannot be adjusted to suit the patient's leg length, resulting in low practicality.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] Orthopedic rehabilitation knee joint mobilizers are designed to improve the aforementioned problems.

[0009] The present invention is as follows:

[0010] Includes a base, a movable component mounted on the top of the base, a sliding component mounted on the movable component, a lifting component mounted on the movable component, and a backrest component mounted on the movable component;

[0011] The movable components include a support column, a seat, an extension rod, a movable rod, a foot pedal, a support rod, an arc-shaped rod, a sliding groove, and a first hydraulic rod. The support column is fixedly installed on the top of the base, the seat is disposed on the top of the support column, the extension rod is fixedly connected to the periphery of the support column, the movable rod is hinged to the side of the extension rod away from the support column, two foot pedals are installed on both sides of the movable rod, the support rod is fixedly connected to the bottom of the extension rod, the arc-shaped rod is fixedly connected to the end of the support rod away from the extension rod, the sliding groove is opened at the end of the foot pedal away from the extension rod and is used to slide in conjunction with the arc-shaped rod, one end of the first hydraulic rod is hinged to one side of the support rod, and the other end is hinged to the bottom of the movable rod.

[0012] As a preferred technical solution of this utility model, the sliding component includes a movable groove and pulleys. The movable groove is opened on one side of the arc-shaped rod, and the two pulleys are arranged inside the sliding groove and are used to slide in cooperation with the movable groove.

[0013] As a preferred technical solution of this utility model, the lifting assembly includes a lifting groove and a second hydraulic rod. The lifting groove is opened at the top of the support column, one end of the second hydraulic rod is disposed inside the lifting groove, and the other end is disposed at the bottom of the seat.

[0014] As a preferred technical solution of this utility model, two stabilizing cylinders are fixedly installed on the top of the base, and two stabilizing rods are fixedly installed on the bottom of the seat, with the stabilizing rods slidably connected to the inside of the stabilizing cylinders.

[0015] As a preferred technical solution of this utility model, the backrest assembly includes a curved rod, a backrest plate, a long plate, a handle bar, and a handle cover. The curved rod is fixedly installed on one side of the seat, the backrest plate is fixedly connected to the curved rod, the two long plates are fixedly connected to the periphery of the curved rod, the handle bar is hinged to the end of the long plate away from the curved rod, and the handle cover is installed on the handle bar.

[0016] As a preferred technical solution of this utility model, a reinforcing rod is fixedly connected to the end of the arc-shaped rod away from the supporting rod, and the end of the reinforcing rod away from the arc-shaped rod is fixedly connected to the extension rod.

[0017] As a preferred technical solution of this utility model, two anti-tipping rods are fixedly connected to the periphery of the support column, and a triangular support leg is installed at the end of the anti-tipping rod away from the support column.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] In the solution of this utility model:

[0020] 1. By setting up the active component and the sliding component, when using the device, the patient sits on the seat, puts his / her feet on the two foot pedals, and then activates the first hydraulic rod, which pushes the active rod to move slowly, so that the active rod makes a circular motion along the arc rod, while the pulley slides inside the active groove, thereby performing flexion and extension exercises on the patient's knee, improving the recovery effect and the comfort of use;

[0021] 2. By setting up a lifting assembly, a stabilizing cylinder, and a stabilizing bar, the second hydraulic rod can be activated during use to adjust the height of the seat. At the same time, the stabilizing bar slides inside the stabilizing cylinder, improving the stability of the seat during lifting and lowering. The height adjustment of the seat changes the distance between the patient's legs and the pedal bar, thus allowing patients of different heights to use the seat. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of the orthopedic rehabilitation knee joint mobilization device provided by this utility model;

[0023] Figure 2 Right view of the orthopedic rehabilitation knee joint mobilizer provided by this utility model;

[0024] Figure 3 The orthopedic rehabilitation knee joint mobilization device provided by this utility model Figure 2 A schematic diagram of the three-dimensional cross-sectional structure at point AA;

[0025] Figure 4 The orthopedic rehabilitation knee joint mobilization device provided by this utility model Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 A schematic diagram of the triangular support leg of the orthopedic rehabilitation knee joint mobilizer provided by this utility model.

[0027] The image shows:

[0028] 1. Base; 2. Movable component; 3. Sliding component; 4. Lifting component; 5. Backrest component; 201. Support column; 202. Seat; 203. Extension rod; 204. Movable rod; 205. Foot pedal; 206. Support rod; 207. Curved rod; 208. Sliding groove; 209. First hydraulic rod; 301. Movable groove; 302. Pulley; 401. Lifting groove; 402. Second hydraulic rod; 6. Stabilizing cylinder; 7. Stabilizing rod; 501. Bending rod; 502. Backrest; 503. Long plate; 504. Handrail; 505. Handle cover; 8. Reinforcing rod; 9. Anti-tipping rod; 10. Triangular support leg. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] like Figure 1-5 As shown, this embodiment proposes a knee joint mobilizer for orthopedic rehabilitation, including a base 1, a movable component 2 mounted on the top of the base 1, a sliding component 3 mounted on the movable component 2, a lifting component 4 mounted on the movable component 2, and a backrest component 5 mounted on the movable component 2.

[0034] like Figure 3 and Figure 4As shown, the active component 2 includes a support column 201, a seat 202, an extension rod 203, a movable rod 204, a foot pedal 205, a support rod 206, an arc-shaped rod 207, a sliding groove 208, and a first hydraulic rod 209. The support column 201 is fixedly installed on the top of the base 1, the seat 202 is disposed on the top of the support column 201, the extension rod 203 is fixedly connected to the periphery of the support column 201, the movable rod 204 is hinged to the side of the extension rod 203 away from the support column 201, two foot pedals 205 are installed on both sides of the movable rod 204, the support rod 206 is fixedly connected to the bottom of the extension rod 203, and the arc-shaped rod 207 is fixedly connected to... The first hydraulic rod 209 is connected to the support rod 206 at the end away from the extension rod 203. The sliding groove 208 is opened at the end of the foot pedal 205 away from the extension rod 203 and is used in conjunction with the arc rod 207 for sliding connection. One end of the first hydraulic rod 209 is hinged to one side of the support rod 206, and the other end is hinged to the bottom of the movable rod 204. When in use, the patient sits on the seat 202, puts his feet on the two foot pedals 205, and then starts the first hydraulic rod 209, which pushes the movable rod 204 to move slowly, so that the movable rod 204 makes a circular motion along the arc rod 207, thereby performing bending and straightening exercises on the patient's knee, improving the recovery effect and the comfort of use.

[0035] like Figure 4 As shown, the sliding component 3 includes a movable groove 301 and pulleys 302. The movable groove 301 is opened on one side of the arc-shaped rod 207. The two pulleys 302 are set inside the sliding groove 208 and slide in cooperation with the movable groove 301. When in use, the movable rod 204 moves in a circular motion along the arc-shaped rod 207, while the pulleys 302 slide inside the movable groove 301, which improves the stability of the movable rod 204 when it moves.

[0036] like Figure 3 As shown, the lifting assembly 4 includes a lifting groove 401 and a second hydraulic rod 402. The lifting groove 401 is located at the top of the support column 201. One end of the second hydraulic rod 402 is located inside the lifting groove 401, and the other end is located at the bottom of the seat 202. When in use, activating the second hydraulic rod 402 can adjust the height of the seat 202, thereby improving the stability of the seat 202 during lifting. The height adjustment of the seat 202 will change the distance between the patient's legs and the foot pedal 205, so that it can be used by patients of different heights.

[0037] like Figure 3 As shown, two stabilizing cylinders 6 are fixedly installed on the top of the base 1, and two stabilizing rods 7 are fixedly installed on the bottom of the seat 202. The stabilizing rods 7 are slidably connected to the inside of the stabilizing cylinders 6. When the height of the seat 202 is adjusted during use, the stabilizing rods 7 will slide inside the stabilizing cylinders 6, thereby improving the stability of the seat 202 when it is raised or lowered.

[0038] like Figure 3As shown, the backrest assembly 5 includes a bending rod 501, a backrest 502, a long plate 503, a handle bar 504, and a handle glove 505. The bending rod 501 is fixedly installed on one side of the seat 202, the backrest 502 is fixedly connected to the bending rod 501, the two long plates 503 are fixedly connected to the periphery of the bending rod 501, the handle bar 504 is hinged to the end of the long plate 503 away from the bending rod 501, and the handle glove 505 is installed on the handle bar 504. When in use, the backrest 502 allows the patient to lean back and rest when their knee joint is tired during exercise, and the hinged handle bar 504 allows the patient to easily support themselves during exercise. Moving the handle bar 504 away will not affect the patient getting on and off the seat 202.

[0039] like Figure 3 As shown, a reinforcing rod 8 is fixedly connected to the end of the arc-shaped rod 207 away from the support rod 206. The end of the reinforcing rod 8 away from the arc-shaped rod 207 is fixedly connected to the extension rod 203. When in use, the reinforcing rod 8 can improve the stability of the arc-shaped rod 207.

[0040] like Figure 5 As shown, two anti-tipping rods 9 are fixedly connected to the periphery of the support column 201. A triangular support leg 10 is installed at the end of the anti-tipping rod 9 away from the support column 201. When in use, the triangular support leg 10 can support the support column 201 and prevent the support column 201 from tipping over.

[0041] Specifically, when using this orthopedic rehabilitation knee joint mobilizer: the patient sits on the seat 202, places their feet on the two foot pedals 205, and then activates the first hydraulic rod 209, which pushes the movable rod 204 to move slowly, causing the movable rod 204 to make a circular motion along the arc-shaped rod 207. At the same time, the pulley 302 slides inside the movable groove 301, thereby performing flexion and extension exercises on the patient's knee, improving the recovery effect and comfort. Activating the second hydraulic rod 402 can adjust the height of the seat 202, and at the same time, the stabilizing rod 7 slides inside the stabilizing cylinder 6, improving the stability of the seat 202 when raising and lowering. The height adjustment of the seat 202 changes the distance between the patient's legs and the foot pedals 205, thus allowing it to be used by patients of different heights.

[0042] All technical features in this embodiment can be freely combined according to actual needs.

[0043] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A knee joint mobilization device for orthopedic rehabilitation, comprising a base (1), characterized in that, The base (1) has a movable component (2) installed on its top, a sliding component (3) installed on the movable component (2), a lifting component (4) installed on the movable component (2), and a backrest component (5) installed on the movable component (2). The movable component (2) includes a support column (201), a seat (202), an extension rod (203), a movable rod (204), a foot pedal (205), a support rod (206), an arc rod (207), a sliding groove (208), and a first hydraulic rod (209). The support column (201) is fixedly installed on the top of the base (1), the seat (202) is disposed on the top of the support column (201), the extension rod (203) is fixedly connected to the periphery of the support column (201), and the movable rod (204) is hinged to the extension rod (203) away from the support column (206). 1) On one side, two pedal rods (205) are installed on both sides of the movable rod (204). The support rod (206) is fixedly connected to the bottom of the extension rod (203). The arc rod (207) is fixedly connected to the end of the support rod (206) away from the extension rod (203). The sliding groove (208) is opened at the end of the pedal rod (205) away from the extension rod (203) and is used to slide in conjunction with the arc rod (207). One end of the first hydraulic rod (209) is hinged to one side of the support rod (206), and the other end is hinged to the bottom of the movable rod (204).

2. The orthopedic rehabilitation knee joint mobilization device according to claim 1, characterized in that, The sliding assembly (3) includes a movable groove (301) and pulleys (302). The movable groove (301) is opened on one side of the arc-shaped rod (207), and the two pulleys (302) are arranged inside the sliding groove (208) and are used to slide in conjunction with the movable groove (301).

3. The orthopedic rehabilitation knee joint mobilization device according to claim 1, characterized in that, The lifting assembly (4) includes a lifting groove (401) and a second hydraulic rod (402). The lifting groove (401) is located at the top of the support column (201). One end of the second hydraulic rod (402) is located inside the lifting groove (401), and the other end is located at the bottom of the seat (202).

4. The orthopedic rehabilitation knee joint mobilization device according to claim 1, characterized in that, Two stabilizing cylinders (6) are fixedly installed on the top of the base (1), and two stabilizing rods (7) are fixedly installed on the bottom of the seat (202). The stabilizing rods (7) are slidably connected to the inside of the stabilizing cylinders (6).

5. The orthopedic rehabilitation knee joint mobilization device according to claim 1, characterized in that, The backrest assembly (5) includes a bending rod (501), a backrest (502), a long plate (503), a handle bar (504), and a handle glove (505). The bending rod (501) is fixedly installed on one side of the seat (202). The backrest (502) is fixedly connected to the bending rod (501). The two long plates (503) are fixedly connected to the periphery of the bending rod (501). The handle bar (504) is hinged to the end of the long plate (503) away from the bending rod (501). The handle glove (505) is installed on the handle bar (504).

6. The orthopedic rehabilitation knee joint mobilization device according to claim 1, characterized in that, The end of the arc-shaped rod (207) away from the support rod (206) is fixedly connected to a reinforcing rod (8), and the end of the reinforcing rod (8) away from the arc-shaped rod (207) is fixedly connected to the extension rod (203).

7. The orthopedic rehabilitation knee joint mobilization device according to claim 1, characterized in that, Two anti-tipping rods (9) are fixedly connected to the periphery of the support column (201), and a triangular support leg (10) is installed at the end of the anti-tipping rod (9) away from the support column (201).

Citation Information

Patent Citations

  • Orthopaedic knee joint nursing exerciser

    CN209253497U