Knee joint flexion and extension exercise device

By designing an adjustable knee flexion and extension exercise device, the shortcomings of the seated knee extension exercise method are solved, and flexible exercise intensity adjustment and care functions are realized, thereby improving the knee joint rehabilitation effect.

CN223474358UActive Publication Date: 2025-10-28175TH HOSPITAL OF PEOPLES LIBERATION ARMY
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Patent Information

Application Number
CN202422860667.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-10-28
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

The existing seated knee extension exercise method lacks auxiliary devices, and the exercise intensity and rehabilitation effect need to be optimized.

Method used

A knee flexion and extension exercise device was designed, comprising a fixing clamp, a support column, a knee joint support frame, an elastic band, and a protective pad. The support frame is height adjustable, the protective pad has adjustable resistance, and can be used for ice or heat application.

Benefits of technology

It improves the effectiveness of knee flexion and extension exercises, adapts to the needs of different patients, and enhances the nursing effect through ice or heat application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a knee joint flexion and extension exercise device, and belongs to the technical field of medical care. The knee joint flexion and extension exercise device comprises a fixing clamp capable of being fixed to the edge of the bed body, a plurality of supporting columns are fixed to the fixing clamp, a knee joint supporting frame capable of being adjusted in a lifting mode is erected on the tops of the supporting columns, and the knee joint supporting frame is used for being erected at the knee joint of a patient. Elastic bands are installed on the two sides of the knee joint supporting frame, a protective pad is fixed to the ends, away from the knee joint supporting frame, of the two elastic bands together, the protective pad is bound to the knee joint and the front side of the shank of a patient and used for providing elastic resistance, an installation bag is arranged on the outer side of the protective pad, and a water bag is placed in the installation bag. According to the knee joint bending and stretching device, the resistance of a patient during knee joint bending and stretching exercise can be adjusted so that the knee joint bending and stretching device can be conveniently used by different patients, ice compress or hot compress can be conveniently carried out while knee joint bending and stretching actions are carried out, the nursing effect on the knee joints of the patient can be further improved, and the overall using effect is good.
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Description

Technical Field

[0001] This utility model relates to the field of medical and nursing technology, and in particular to a knee joint flexion and extension exercise device. Background Technology

[0002] Knee joint diseases and injuries are very common. Osteoarthritis, rheumatoid arthritis, knee ligament injuries, meniscus tears, and other conditions affect people of all ages. These knee problems not only cause physical pain but also severely impact patients' daily lives. Therefore, rehabilitation exercises are necessary.

[0003] Among them, seated knee extension is a relatively simple and effective rehabilitation method. The patient sits with both feet dangling, and gradually straightens the left (right) knee, repeating this alternating motion to exercise the knee joint. However, this method lacks auxiliary devices, and there is still room for improvement in both the intensity of the exercise and the rehabilitation effect.

[0004] Therefore, this application provides a knee flexion and extension exercise device to meet the needs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a knee flexion and extension exercise device to address the issue that existing seated knee extension exercise methods need further optimization.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A knee flexion and extension exercise device includes a fixing clamp that can be fixed to the edge of a bed. Multiple support columns are fixed on the fixing clamp, and an adjustable knee support frame is mounted on the top of each support column. Elastic bands are installed on both sides of the knee support frame, and a protective pad for providing elastic resistance is fixed to one end of each elastic band away from the knee support frame. An installation bag is provided on the outside of the protective pad, and a water bag is placed inside the installation bag.

[0008] Optionally, the fixing clamp has a C-shaped cross-section and is snapped into the edge of the bed. The bottom of the fixing clamp is provided with a vertical screw, which is threaded into the fixing clamp and movably supports the abutment plate.

[0009] Optionally, the edge of the abutment plate slides vertically against the inner wall of the fixing clamp, forming an up-and-down movable fit.

[0010] Optionally, two support columns are provided and vertically fixed to the upper end face of the fixing clamp, and the bottom of the knee joint support frame is fixed with an insert shaft that is vertically inserted into the support column.

[0011] Optionally, a first pin is provided on the top side of the support column, the first pin passes through the support column, and the surface of the insertion shaft is provided with a plurality of first positioning holes for the first pin to be inserted.

[0012] Optionally, the top of the knee support frame is provided with a groove for supporting the inner side of the patient's knee joint, and the groove is lined with a soft pad.

[0013] Optionally, a strap is installed on the inner side of the protective pad to secure the protective pad to the patient's knee joint and the front of the lower leg.

[0014] Optionally, the protective pad is provided with mesh at the center corresponding to the position of the water bag.

[0015] Optionally, the knee joint support frame has horizontal bases fixed on both sides, and connecting rods are horizontally inserted into the bases. The end of the elastic band away from the protective pad is fixed to the end of the connecting rod, and a guide ring for the elastic band to pass through is fixed on the side of the knee joint support frame.

[0016] Optionally, the base is provided with a second pin, which passes through the base, and the connecting rod is provided with a plurality of second positioning holes for the second pin to be inserted.

[0017] Compared with the prior art, this utility model has at least the following beneficial effects:

[0018] In the above solution, thanks to the adjustable design of the knee support frame, it is easy to adapt to patients of different heights and leg lengths. When the knee joint is supported to assist in flexion and extension movements, the protective pad elastically fits on the patient's knee joint and the front of the lower leg, providing appropriate resistance according to different patients, which helps to improve the rehabilitation effect of flexion and extension movements on the patient's knee joint.

[0019] In the above solution, thanks to the installation bag and water bag set on the outside of the protective pad, the water bag can be used to hold ice water to apply ice to the patient's knee joint, or to hold hot water to apply heat to the patient's knee joint.

[0020] In summary, this device not only allows for adjustment of the resistance during knee flexion and extension exercises to accommodate different patients, but also facilitates the application of ice or heat during these movements, further enhancing the care for the patient's knee joint. Overall, it offers excellent results. Attached Figure Description

[0021] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model in use;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the protective pad's structure;

[0025] Figure 4 yes Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0026] Figure label:

[0027] 1. Fixing clamp; 101. Screw; 102. Abutment plate; 2. Support column; 201. First pin; 3. Knee joint support frame; 301. Insert shaft; 302. First positioning hole; 303. Soft pad; 4. Elastic band; 5. Protective pad; 501. Strap; 6. Installation bag; 601. Water bag; 7. Base; 701. Second pin; 8. Connecting rod; 801. Second positioning hole; 9. Guide ring.

[0028] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0029] The following is a detailed description of a knee flexion and extension exercise device provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0030] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0031] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0032] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0033] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0034] like Figures 1 to 4 As shown, an embodiment of this utility model provides a knee flexion and extension exercise device, including a fixing clamp 1. The fixing clamp 1 has a C-shaped cross-section, allowing it to be snapped into the edge of a bed. A vertical screw 101 is provided at the bottom of the fixing clamp 1, threaded into the fixing clamp 1, and movably supports an abutment plate 102. The edge of the abutment plate 102 slides vertically against the inner wall of the fixing clamp 1, forming a vertically movable fit. Therefore, by rotating the screw 101, the abutment plate 102 can be moved within the fixing clamp 1, allowing the fixing clamp 1 to be fixed to the edge of a bed with different thicknesses, making it convenient to use.

[0035] Meanwhile, multiple support columns 2 are fixed on the fixing clamp 1. A knee joint support frame 3 is mounted on the top of the support column 2. The knee joint support frame 3 is provided with a groove for supporting the patient's knee joint, and a soft pad 303 is placed in the groove. Specifically, there are two support columns 2, which are vertically fixed to the upper end face of the fixing clamp 1. The bottom of the knee joint support frame 3 is fixed with a vertically inserted shaft 301 inserted into the support column 2. The top side of the support column 2 is provided with a first pin 201, which passes through the support column 2. The surface of the shaft 301 is provided with several first positioning holes 302 for the first pin 201 to be inserted. Therefore, the height of the knee joint support frame 3 can be easily adjusted to suit patients of different heights and leg lengths, making it highly versatile.

[0036] In addition, elastic bands 4 are installed on both sides of the knee joint support frame 3. A protective pad 5 is fixed to the end of each elastic band 4 away from the knee joint support frame 3. The protective pad 5 is used to restrain the patient's knee joint and the front of the lower leg and provide elastic resistance. (Specific details omitted) Figure 4 As shown, the knee support frame 3 has horizontal bases 7 fixed on both sides. Connecting rods 8 are horizontally inserted into the bases 7. The end of the elastic band 4 away from the protective pad 5 is fixed to the end of the connecting rod 8. A guide ring 9 for the elastic band 4 to pass through is fixed to the side of the knee support frame 3. A second pin 701 is provided on the base 7, and the connecting rod 8 has several second positioning holes 801 for the second pin 701 to be inserted. Therefore, the tension of the elastic band 4 can be freely adjusted by changing the insertion length of the connecting rod 8 to meet the exercise needs of different patients.

[0037] Cooperate Figure 3 As shown, a strap 501 is installed on the inner side of the protective pad 5. The strap 501 is used to bind the protective pad 5 to the patient's knee joint and the front of the lower leg (in this embodiment). Figure 1 The device is only attached to the front of the patient's lower leg; in actual use, it can also be moved to the knee joint for attachment.

[0038] The protective pad 5 has an installation bag 6 on its outer side, and a water bag 601 is placed inside the installation bag 6. The water bag 601 can be filled with ice water to apply ice to the patient's knee joint, or filled with hot water to apply heat to the patient's knee joint. The protective pad 5 has a mesh in the middle corresponding to the position of the water bag 601 to ensure the heat transfer effect of the water bag 601 to the knee joint.

[0039] The working principle of the technical solution provided by this utility model is as follows:

[0040] When using this knee flexion and extension exercise device, the height of the knee support frame 3 is adjusted to match the patient's height and leg length. The groove at the top of the knee support frame 3 supports the patient's knee joint. Then, the protective pad 5 is elastically fitted onto the patient's knee joint and the front of the lower leg using the strap 501. This allows the patient to perform knee flexion and extension movements by moving the lower leg. The resistance from the elastic band 4 and the protective pad 5 enhances the rehabilitation effect of the flexion and extension movements on the patient's knee joint. At the same time, since the elastic band 4 is installed through the cooperation of the base 7 and the connecting rod 8, the tightness of the elastic band 4 can be freely adjusted by the insertion length of the movable connecting rod 8. This makes the device very flexible to use and convenient for different patients.

[0041] In addition, by installing a bag 6 and a water bag 601 on the outside of the protective pad 5, the water bag 601 can be used to hold ice water for applying ice to the patient's knee joint, or to hold hot water for applying heat to the patient's knee joint.

[0042] In summary, this device not only allows for adjustment of the resistance during knee flexion and extension exercises to accommodate different patients, but also facilitates the application of ice or heat during these movements, further enhancing the care for the patient's knee joint. Overall, it offers excellent results.

[0043] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the preferred embodiments; however, those skilled in the art can fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A knee joint flexion and extension exercise device, characterized in that, It includes a fixing clamp that can be fixed to the edge of the bed, and multiple support columns are fixed on the fixing clamp. An adjustable knee support frame is mounted on the top of the support columns. Elastic bands are installed on both sides of the knee joint support frame. The ends of the two elastic bands away from the knee joint support frame are fixed together with a protective pad for providing elastic resistance. An installation bag is provided on the outside of the protective pad, and a water bag is placed inside the installation bag.

2. The knee flexion and extension exercise device according to claim 1, characterized in that, The fixing clamp has a C-shaped cross-section and is snapped into the edge of the bed. The bottom of the fixing clamp is provided with a vertical screw, which is threaded into the fixing clamp and movably supports the abutment plate.

3. The knee flexion and extension exercise device according to claim 2, characterized in that, The edge of the abutment plate slides vertically against the inner wall of the fixing clamp, forming a vertically movable fit.

4. The knee flexion and extension exercise device according to claim 1, characterized in that, Two support columns are provided and are vertically fixed to the upper end face of the fixing clamp, and the bottom of the knee joint support frame is fixed with a vertically inserted shaft inserted into the support column.

5. The knee flexion and extension exercise device according to claim 4, characterized in that, The top side of the support column is provided with a first pin, which passes through the support column, and the surface of the insertion shaft is provided with a plurality of first positioning holes for the first pin to be inserted.

6. The knee flexion and extension exercise device according to claim 1, characterized in that, The top of the knee support frame is provided with a groove for supporting the inner side of the patient's knee joint, and the groove is lined with a soft pad.

7. The knee flexion and extension exercise device according to claim 1, characterized in that, The protective pad is fitted with a strap on the inside, which is used to secure the protective pad to the patient's knee joint and the front of the lower leg.

8. The knee flexion and extension exercise device according to claim 1, characterized in that, The protective pad has a mesh in the middle corresponding to the position of the water bag.

9. The knee flexion and extension exercise device according to claim 1, characterized in that, The knee joint support frame has horizontal bases fixed on both sides, and connecting rods are horizontally inserted into the bases. The end of the elastic band away from the protective pad is fixed to the end of the connecting rod, and a guide ring for the elastic band to pass through is fixed on the side of the knee joint support frame.

10. The knee flexion and extension exercise device according to claim 9, characterized in that, The base is provided with a second pin, which passes through the base, and the connecting rod is provided with a plurality of second positioning holes for the second pin to be inserted.