A multi-directional traction device for knee joint rehabilitation and nursing

Abstract

This utility model discloses a multi-directional traction device for knee joint rehabilitation, including a base. A square shell is fixedly provided at one end of the base. Sliding holes are provided on the outer wall of the square shell on both sides. Sliding blocks are slidably provided inside the sliding holes. Adjusting seats are fixedly provided on the outer wall of the sliding blocks on both sides. Guide cylinders are fixedly provided on the outer wall of the adjusting seats on both sides. Guide columns are slidably provided inside the guide cylinders. A movable seat is fixedly provided at one end of each guide column. A vertical plate is provided on the outer wall of the movable seat. A collar is hinged to the outer wall of the vertical plate. An electric push rod is fixedly provided on the upper end face of the movable seat. The user can use the collar to assist in fixing the patient's foot. Then, by controlling the electric push rod, the user can move the movable seat and the patient's foot to assist the patient in performing stretching movements such as knee flexion, thereby improving the rehabilitation effect.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation nursing technology, and more specifically, it relates to a multi-directional traction device for the knee joint in rehabilitation nursing. Background Technology

[0002] The multi-directional traction device for the knee joint used in rehabilitation nursing is a medical device used for postoperative rehabilitation of knee joint injuries, treatment of arthritis, or recovery from sports injuries. It improves joint range of motion (ROM), reduces pain, and promotes tissue repair through controllable traction force. It has the characteristics of increasing the nutrient supply to the joint cavity and accelerating the removal of metabolic waste. Traction devices can be divided into electric traction systems and manually adjustable traction devices. Due to their high cost performance, they are suitable for primary healthcare institutions.

[0003] A Chinese patent with publication number CN210494340U discloses an orthopedic traction frame, which states in the claims that it includes a base plate (1), characterized in that the upper surface of the base plate (1) is fixedly connected to the lower surface of the support column (2), the upper surface of the support column (2) is fixedly connected to the upper surface of the first support plate (3), the side of the first support plate (3) is rotatably connected to the side of the second support plate (4), the side of the first support plate (3) is fixedly connected to the side of the fixing plate (7), the lower surface of the fixing plate (7) is fixedly connected to the upper surface of the fixing column (8), and two identical traction devices are fixedly connected to the fixing column (8).

[0004] However, the traction device mentioned above cannot fix the user's feet during use, which means that it cannot achieve the effect of traction and stretching the patient's knee joint during use, thus affecting the normal use of the device.

[0005] Furthermore, the distance between the traction devices cannot be adjusted, resulting in poor practical effects when used by patients of different body types. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a multi-directional traction device for the knee joint in rehabilitation care, so as to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a multi-directional traction device for knee joint rehabilitation and nursing, comprising a base, a square shell fixedly provided at one end of the base, sliding holes provided on both sides of the outer wall of the square shell, sliding blocks slidably provided inside the sliding holes, an adjusting seat fixedly provided on the outer wall of each sliding block, a guide cylinder fixedly provided on both sides of the outer wall of the adjusting seat, a guide column slidably provided inside each guide cylinder, a movable seat fixedly provided at one end of each guide column, a vertical plate provided on the outer wall of the movable seat, a collar hinged on the outer wall of the vertical plate, an electric push rod fixedly provided on the upper end face of the movable seat, the output end of the electric push rod fixedly connected to the vertical plate, and a strip block fixedly provided on the inner wall of the square shell.

[0010] The present invention is further configured such that T-shaped grooves are provided on the outer wall of the strip block on both sides, and one end of the sliding block is provided with a corresponding T-shaped block. The T-shaped blocks are slidably installed with the T-shaped grooves, and threaded rods are rotatably provided inside the T-shaped grooves. The threaded rods are threadedly connected to the T-shaped blocks, which facilitates the adjustment of the distance between the adjusting seats.

[0011] The present invention is further configured such that one end of the threaded rod passes through the strip block and is fixedly provided with a screwing block, which facilitates the rotation of the threaded rod.

[0012] The present invention is further configured such that a seat is provided at the other end of the base, and guide blocks are fixedly provided on the lower end surface of the seat and on both sides. A guide groove is correspondingly provided on the upper end surface of the base. The guide blocks are slidably installed with the guide groove. A fixing block is provided at the rear end of the seat, and pins are slidably provided on the upper end surface of the fixing block and on both sides to facilitate guiding the seat.

[0013] The present invention is further configured such that the upper end face of the base is provided with a slot, and multiple slots are provided and arranged linearly, and the lower ends of the pins are all located inside the slots, which facilitates the fixing and adjustment of the seat position.

[0014] The present invention is further configured such that a handle is fixedly provided at the upper end of the two pins, and a connecting spring is fixedly provided at both ends of the handle. The other end of the connecting spring is fixedly connected to the fixing block, so as to facilitate the pins entering the slot.

[0015] The present invention is further configured such that the bottom of each movable seat is provided with a wheel that rotates and contacts the upper surface of the base, thereby reducing the friction between the movable seat and the base.

[0016] The present invention is further provided with a soft pad on the inner wall of the seat to make the patient more comfortable to sit on.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a multi-directional traction device for the knee joint in rehabilitation care, which has the following beneficial effects:

[0019] 1. By setting up a movable seat, an adjustable seat, an electric push rod, and a collar, the user can use the collar to assist in fixing the patient's foot. Then, the electric push rod is controlled by parameters set by an external control system, so that its output end drives the movable seat and the patient's foot to move, thereby assisting the patient to perform stretching movements such as knee flexion and extension, so that the patient's knee joint receives multi-directional traction, thus improving the rehabilitation effect.

[0020] 2. By setting up a sliding block, a T-block, and a threaded rod, the user can rotate the threaded rod by turning the block, causing it to slide the T-block inside the T-slot. This allows for adjustment of the distance between the two moving seats, enabling patients to receive effective exercise when opening or closing their legs, thus increasing the flexibility of the device during use.

[0021] 3. By setting up a seat, a pin, and a connecting spring, the user can adjust the distance between the seat and the collar through the cooperation of the guide block and the guide groove, so that people of different heights can use the device. After adjustment, the handle is released, and the connecting spring will return to its original position, allowing the pin to re-enter the slot, thereby achieving the effect of fixing the seat, which is convenient for patients with different leg lengths to use. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of a multi-directional traction device for knee joint rehabilitation in its unused state.

[0023] Figure 2 A schematic diagram showing the positions of the movable seat, collar, electric push rod, and T-block on the adjusting seat;

[0024] Figure 3 Exploded view of the installation of the base, seat, and latch;

[0025] Figure 4 Exploded view of the installation of the seat, latches, and handles;

[0026] Figure 5 This is a cross-sectional view of the installation of the square shell and the strip blocks.

[0027] In the diagram: 1. Base; 2. Square shell; 3. Sliding hole; 4. Sliding block; 5. Adjusting seat; 6. Guide cylinder; 7. Guide column; 8. Moving seat; 9. Upright plate; 10. Collar; 11. Electric push rod; 12. Strip block; 13. T-slot; 14. T-block; 15. Threaded rod; 16. Tightening block; 17. Seat; 18. Guide block; 19. Guide groove; 20. Fixing block; 21. Pin; 22. Slot; 23. Handle; 24. Connecting spring; 25. Wheel; 26. Soft pad. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figure 1-5 A multi-directional traction device for knee joint rehabilitation includes a base 1. A square shell 2 is fixedly mounted on one end of the base 1. Sliding holes 3 are provided on the outer wall of the square shell 2 on both sides. Sliding blocks 4 are slidably mounted inside the sliding holes 3. Adjusting seats 5 are fixedly mounted on the outer wall of the sliding blocks 4. Guide cylinders 6 are fixedly mounted on the outer wall of the adjusting seats 5 on both sides. Guide columns 7 are slidably mounted inside the guide cylinders 6. A movable seat 8 is fixedly mounted on one end of the guide columns 7. A vertical plate 9 is provided on the outer wall of the movable seat 8. A collar 10 is hinged to the outer wall of the vertical plate 9. An electric push rod 11 is fixedly mounted on the upper end face of the movable seat 8. The output end of the electric push rod 11 is fixedly connected to the vertical plate 9. A strip block 12 is fixedly mounted on the inner wall of the square shell 2.

[0032] In this embodiment, T-slots 13 are provided on the outer wall of the strip block 12 on both sides, and T-blocks 14 are provided at one end of the sliding block 4. The T-blocks 14 are slidably installed with the T-slots 13. Threaded rods 15 are rotatably provided inside the T-slots 13. The threaded rods 15 are threadedly connected to the T-blocks 14. One end of the threaded rods 15 passes through the strip block 12 and is fixedly provided with a screwing block 16.

[0033] More specifically, the user can use the collar 10 to assist in fixing the patient's foot, and then control the electric push rod 11 through the parameters set by the external control system, so that its output end drives the moving seat 8 and the patient's foot to move, thereby assisting the patient to perform stretching movements such as knee flexion and extension, so that the patient's knee joint receives multi-directional traction, making it more convenient to use. In addition, the threaded rod 15 can be rotated by turning the block 16, so that it drives the T-shaped block 14 to slide inside the T-shaped groove 13, thereby adjusting the distance between the two moving seats 8, so that the patient can get effective exercise when opening or closing their legs, increasing the flexibility of the device during use.

[0034] Please see Figure 1 , Figure 3 and Figure 4 As an implementation method for adjusting the position of seat 17: seat 17 is provided at the other end of base 1. Guide blocks 18 are fixedly provided on the lower end surface of seat 17 and on both sides. Guide grooves 19 are correspondingly provided on the upper end surface of base 1. Guide blocks 18 and guide grooves 19 are slidably installed. Fixing block 20 is provided at the rear end of seat 17. Pins 21 are slidably provided on the upper end surface of fixing block 20 and on both sides. Slots 22 are correspondingly provided on the upper end surface of base 1. Multiple slots 22 are provided and arranged linearly. The lower ends of pins 21 are all located inside slots 22. Handles 23 are fixedly provided on the upper ends of two pins 21. Connecting springs 24 are fixedly provided on both ends of handles 23. The other ends of connecting springs 24 are fixedly connected to fixing blocks 20. A soft pad 26 is provided on the inner wall of seat 17.

[0035] Specifically, the user can adjust the distance between the seat 17 and the collar 10 by the cooperation of the guide block 18 and the guide groove 19, so that people of different heights can use the device. After adjustment, the handle 23 is released, and the connecting spring 24 will return to its original position, so that the pin 21 can re-enter the slot 22, thereby achieving the effect of fixing the seat 17, which is convenient for patients with different leg lengths to use.

[0036] Please refer to Figure 2 As a further embodiment to reduce the friction between the movable seat 8 and the base 1: the bottom of the movable seat 8 is provided with a wheel 25 that rotates and contacts the upper surface of the base 1.

[0037] Specifically, the wheel 25 can reduce the friction between the movable seat 8 and the base 1, thereby reducing wear on the device.

[0038] In summary, when using the device: the user can first have the patient sit on the upper part of the seat 17, then place the patient's feet in the collar 10 for auxiliary fixation. Then, the user controls the electric push rod 11 through parameters set by the external control system, causing its output end to move the movable seat 8 and the patient's feet, thereby assisting the patient in performing knee flexion, extension, and other stretching movements. This provides multi-directional traction to the patient's knee joint, making it more convenient to use. Furthermore, the threaded rod 15 can be rotated by turning the block 16, causing the T-block 14 to slide inside the T-slot 13. This allows for adjustment of the distance between the two movable seats 8, enabling patients to effectively exercise their legs when opening or closing them. This increases the flexibility of the device during use. When a patient with longer legs uses the device, the user can adjust the distance between the seat 17 and the collar 10 through the cooperation of the guide block 18 and the guide groove 19, so that the patient's feet can reach the collar 10. After releasing the handle 23, the connecting spring 24 will reset, allowing the pin 21 to re-enter the slot 22, thereby fixing the seat 17 and making it convenient for patients with different leg lengths to use.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-directional knee joint traction device for rehabilitation nursing, comprising a base (1), characterized in that: A square shell (2) is fixedly provided at one end of the base (1). Sliding holes (3) are provided on the outer wall of the square shell (2) on both sides. Sliding blocks (4) are slidably provided inside the sliding holes (3). Adjusting seats (5) are fixedly provided on the outer wall of the sliding blocks (4). Guide cylinders (6) are fixedly provided on the outer wall of the adjusting seats (5) on both sides. Guide columns (7) are slidably provided inside the guide cylinders (6). A movable seat (8) is fixedly provided at one end of the guide columns (7). A vertical plate (9) is provided on the outer wall of the movable seat (8). A collar (10) is hinged on the outer wall of the vertical plate (9). An electric push rod (11) is fixedly provided on the upper end face of the movable seat (8). The output end of the electric push rod (11) is fixedly connected to the vertical plate (9). A strip block (12) is fixedly provided on the inner wall of the square shell (2).

2. The multi-directional knee joint traction device for rehabilitation care according to claim 1, characterized in that: T-slots (13) are provided on the outer wall of the strip block (12) on both sides. A T-block (14) is provided at one end of each sliding block (4). The T-blocks (14) are slidably installed with the T-slots (13). A threaded rod (15) is rotatably provided inside each T-slot (13). The threaded rod (15) is threadedly connected to the T-blocks (14).

3. The multi-directional knee joint traction device for rehabilitation care according to claim 2, characterized in that: One end of each threaded rod (15) passes through a strip block (12) and is fixedly provided with a screwing block (16).

4. The multi-directional knee joint traction device for rehabilitation care according to claim 1, characterized in that: The other end of the base (1) is provided with a seat (17). The lower end face of the seat (17) and both sides are fixedly provided with guide blocks (18). The upper end face of the base (1) is provided with a guide groove (19). The guide block (18) and the guide groove (19) are slidably installed. The rear end of the seat (17) is provided with a fixing block (20). The upper end face of the fixing block (20) and both sides are slidably provided with pins (21).

5. The multi-directional knee joint traction device for rehabilitation care according to claim 4, characterized in that: The upper end of the base (1) is provided with a slot (22), and there are multiple slots (22) arranged in a linear manner. The lower ends of the pins (21) are all located inside the slots (22).

6. The multi-directional knee joint traction device for rehabilitation care according to claim 5, characterized in that: The upper ends of the two pins (21) are fixedly provided with handles (23), and both ends of the handles (23) are fixedly provided with connecting springs (24), and the other ends of the connecting springs (24) are fixedly connected to the fixing block (20).

7. A multi-directional traction device for knee joint rehabilitation and nursing according to claim 2, characterized in that: The bottom of each movable seat (8) is provided with a rotatable wheel (25), and the wheel (25) contacts the upper surface of the base (1).

8. A multi-directional traction device for knee joint rehabilitation and nursing according to claim 4, characterized in that: The inner wall of the seat (17) is provided with a cushion (26).

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