Medical ankle pump auxiliary movement instrument

Abstract

The utility model provides a medical ankle pump auxiliary exercise instrument. The medical ankle pump auxiliary exercise instrument comprises a chassis assembly, a motorized traction structure and a pedal lever structure. The pedal lever structure and the motorized traction structure are both installed on the chassis assembly. The pedal lever structure is connected with the motorized traction structure; the motorized traction structure is used for driving the affected limb of the patient to perform ankle passive movement; the chassis assembly comprises a chassis; the pedal lever structure comprises a pedal plate, a connecting lever and a universal wheel; the connecting lever is mounted on the chassis through the universal wheel; the maneuvering traction structure comprises a steering engine assembly, a steering engine connecting piece and a connecting element set. The connecting element group comprises an upper connecting element and a lower connecting element; through the design of a motorized traction structure, the medical ankle pump auxiliary exercise instrument has the function of automatically generating force to drive a human body to do ankle pump exercise, and a more flexible and diversified rehabilitation treatment scheme is provided for rehabilitation of a patient.

Description

Technical Field

[0001] This utility model relates to the field of medical rehabilitation equipment, specifically to an ankle pump rehabilitation device that integrates active and passive rehabilitation, and more particularly to a medical ankle pump-assisted exercise device. Background Technology

[0002] Portable ankle pump devices require patients to exert force to perform ankle pump exercises, which is often difficult due to impaired muscle function. To address this, existing technology includes an instrument for preventing lower limb thrombosis (utility model patent CN211410006U). This instrument features a pedal at each end of an arc-shaped transmission rod. Depressing one pedal extends the other. By placing the patient's forefoot on each pedal, the downward movement on one side causes the other foot to rise. During use, the patient alternates between pressing down on both feet to achieve the ankle pump exercise.

[0003] However, this method can only be driven by the patient's healthy limb, and the device itself cannot automatically generate force to drive the human body to perform ankle pump movements, which limits its application in the functional recovery of bedridden and postoperative patients. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a medical ankle pump-assisted exercise device.

[0005] A medical ankle pump-assisted exercise device according to the present invention includes a chassis assembly, a motorized traction structure, and a foot pedal lever structure;

[0006] Both the foot pedal lever structure and the motorized traction structure are mounted on the chassis assembly; and the foot pedal lever structure is connected to the motorized traction structure.

[0007] The motorized traction structure is used to passively move the patient's affected limb and ankle.

[0008] Chassis components include the chassis;

[0009] The foot pedal lever structure includes a foot pedal, a connecting lever, and a caster wheel; the foot pedal is directly or indirectly mounted on the end of the connecting lever; the connecting lever is mounted on the chassis via the caster wheel; the motorized traction structure includes a servo assembly, a servo connector, and a connecting element group; the connecting element group includes an upper connecting element and a lower connecting element; the servo assembly includes a servo and a torsion bar, the servo is mounted on the chassis via the servo connector; the torsion bar is mounted on the output shaft of the servo, the upper end of the torsion bar is directly or indirectly connected to the foot pedal via the upper connecting element, and the lower end of the torsion bar is directly or indirectly connected to the foot pedal via the lower connecting element.

[0010] Preferably, the upper connecting element and the lower connecting element are an upper connecting rod and a lower connecting rod, respectively.

[0011] Preferably, the motorized traction structure also includes a footrest fixing plate;

[0012] The foot pedal is mounted on the footrest fixing plate, and the foot pedal and the connecting lever are rotatably connected through the footrest fixing plate;

[0013] The upper connecting element is connected to the foot pedal through one end of the footrest fixing plate, and the lower connecting element is connected to the foot pedal through the other end of the footrest fixing plate.

[0014] Preferably, there are two foot pedals, which are respectively installed on both sides of the connecting lever; the two foot pedals are symmetrically distributed along the caster wheel;

[0015] The motorized traction structure corresponds one-to-one with the foot pedal.

[0016] Preferably, the output shaft of the servo motor is connected to the middle part of the torsion bar.

[0017] Preferably, the angle between the foot pedal and the horizontal plane is between 0° and 90°.

[0018] Preferably, the foot pedal includes a footrest base and a footrest fixing member;

[0019] The footrest fastener is installed on the footrest base.

[0020] Preferably, the chassis is a rubber chassis.

[0021] Preferably, the chassis assembly further includes a height adjustment structure; the chassis is connected to the external hospital bed through the height adjustment structure, and the height adjustment structure is used to adjust the height of the chassis to achieve the adjustment of the foot pedal height.

[0022] Preferably, the height adjustment structure includes a fixed slide rail and a telescopic slide rail, the fixed slide rail being installed on the external hospital bed and the telescopic slide rail being installed on the chassis;

[0023] The telescopic slide rail is slidably connected to the fixed slide rail;

[0024] Both the fixed slide rail and the telescopic slide rail have multiple bolt holes along the height direction. These bolt holes, in conjunction with bolts, are used to fix the relative position of the telescopic slide rail and the fixed slide rail.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This invention, through the design of a motorized traction structure, enables the medical ankle pump-assisted exercise device to automatically generate force to drive the human body to perform ankle pump movements, providing patients with more flexible and diversified rehabilitation treatment options. Attached Figure Description

[0027] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 for Figure 1 Another structural diagram from another angle;

[0030] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0031] Figure 4 This is a partially enlarged schematic diagram of the present invention;

[0032] Figure 5 for Figure 4 A structural diagram from another angle.

[0033] The diagram shows:

[0034] Detailed Implementation

[0035] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0036] This utility model provides a medical ankle pump-assisted exercise device, such as... Figures 1-5 As shown, it includes a chassis assembly 1, a motorized traction structure 2, and a foot pedal lever structure 3; both the foot pedal lever structure 3 and the motorized traction structure 2 are mounted on the chassis assembly 1; and the foot pedal lever structure 3 is connected to the motorized traction structure 2.

[0037] The foot pedal lever structure 3 is used to enable the healthy limb to actively drive the affected limb to move; the motorized traction structure 2 is used to drive the patient's affected limb to perform passive ankle movement.

[0038] The chassis assembly 1 includes a chassis 11, which is a rubber chassis. The rubber chassis is cylindrical in shape and includes rounded ends to prevent sharp parts from scratching the patient's foot.

[0039] The foot pedal lever structure 3 includes a foot pedal 31, a connecting lever 32, and a caster wheel 33; the foot pedal 31 is directly or indirectly installed at the end of the connecting lever 32; the connecting lever 32 is installed on the chassis 11 via the caster wheel 33;

[0040] The motorized traction structure 2 includes a servo assembly 21, a servo connector 22, and a connecting element group. The connecting element group includes an upper connecting element 231 and a lower connecting element 232. The servo assembly 21 includes a servo 211 and a torsion bar 212. The servo 211 is mounted on the chassis 11 via the servo connector 22, and the torsion bar 212 is mounted on the output shaft of the servo 211. Specifically, the output shaft of the servo 211 is connected to the middle part of the torsion bar 212. The upper end of the torsion bar 212 is directly or indirectly connected to the foot pedal 31 via the upper connecting element 231, and the lower end of the torsion bar 212 is directly or indirectly connected to the foot pedal 31 via the lower connecting element 232.

[0041] The motorized traction structure 2 also includes a footrest fixing plate 23; the foot pedal 31 is mounted on the footrest fixing plate 23, and the foot pedal 31 and the connecting lever 32 are rotatably connected through the footrest fixing plate 23.

[0042] The upper connecting element 231 is connected to the foot pedal 31 through one end of the footrest fixing plate 23, and the lower connecting element 232 is connected to the foot pedal 31 through the other end of the footrest fixing plate 23. In a preferred embodiment, the upper connecting element 231 and the lower connecting element 232 are respectively an upper connecting rod and a lower connecting rod. Specifically, one end of the connecting rod is connected to the footrest fixing plate 23, and the other end is connected to the torsion bar 212.

[0043] There are two foot pedals 31, respectively installed on both sides of the connecting lever 32; the motorized traction structure 2 corresponds one-to-one with each foot pedal 31. The two foot pedals 31 are symmetrically distributed along the universal wheels 33, and the angle between the foot pedals 31 and the horizontal plane is between 0° and 90°. Each foot pedal 31 includes a footrest base 311 and a footrest fixing member 312; the footrest fixing member 312 is installed on the footrest base 311. In a preferred embodiment, the footrest fixing member 312 is a strap structure. The footrest base 311 is used to support the patient's foot, and the footrest fixing member 312 is used to fix the patient's foot on the footrest base 311.

[0044] The chassis assembly 1 also includes a height adjustment structure; the chassis 11 is connected to the external hospital bed via the height adjustment structure, which is used to adjust the height of the chassis 11 to adjust the height of the foot pedal 31. This ensures that the medical ankle pump-assisted exercise device is at a suitable height, achieving human-machine harmony.

[0045] The height adjustment structure includes a fixed slide rail 4 and a telescopic slide rail 5. The fixed slide rail 4 is installed on the external hospital bed, and the telescopic slide rail 5 is installed on the chassis 11. The telescopic slide rail 5 is slidably connected to the fixed slide rail 4. Both the fixed slide rail 4 and the telescopic slide rail 5 have multiple bolt holes along the height direction. These bolt holes, in conjunction with bolts, are used to fix the relative positions of the telescopic slide rail 5 and the fixed slide rail 4. Specifically, the entire ankle pump rehabilitation device is placed vertically at the front of the hospital bed support, fixed to the bed by the fixed slide rail 4. The telescopic slide rail 5 is located at the bottom of the entire ankle pump rehabilitation device and is slidably connected to the fixed slide rail 4. After the operator adjusts the height, the height is locked by the engagement of the bolt holes and bolts.

[0046] This invention allows the relative height of the medical ankle pump-assisted exercise device to the hospital bed to be adjusted according to the patient's posture, thereby adjusting the height of the pedal. This design optimizes the interaction between the pedal and the patient based on the needs of different user body postures, providing a more personalized and comfortable treatment experience and ensuring patient comfort and ease of operation during use.

[0047] The working principle of the foot pedal lever structure 3 is as follows: When the healthy limb (such as the left foot) is in contact with the left foot pedal and exerts force to move downwards, the right foot, due to the action of the connecting lever, will drive the right foot pedal to move upwards, realizing the up-and-down movement of the ankle. The omnidirectional wheel design allows the connecting lever to achieve rotational movements such as diagonal upwards and downwards, thereby realizing the rotational movement of the ankle and providing rotational functionality. This design can flexibly adapt to different angles of movement needs, supporting patients in comprehensive rehabilitation training.

[0048] The working principle of the motorized traction structure 2 is as follows: The servo motor 211 adopts a high-torque digital servo motor with a torque of over 45KG. The servo motor 211 is connected to the torsion bar 212, providing torsional force to drive the upper and lower ends of the torsion bar to move. When the servo motor twists, the connecting rod drives the pedal to rotate. The servo motor is carefully programmed to ensure that the pedal rotates in a continuous manner, thereby driving the patient's affected limb to perform passive ankle movement; when the patient's left and right feet are injured at the same time, or when the healthy limb is fatigued and inconvenient for the unaffected limb to actively drive the movement of the affected limb, the servo motor can still be used to drive the patient's rehabilitation.

[0049] This invention employs a design combining universal wheels and connecting levers. By adjusting the relative horizontal angle of the ankle pump device (i.e., a medical ankle pump-assisted exercise device) pedal, it enables forward and backward movement of the ankle during ankle pump exercises, and also provides ankle rotation functionality. This overcomes the shortcomings of existing rehabilitation devices, which cannot achieve ankle rotation and are limited to up and down movements, thus restricting the effectiveness of exercise. Through carefully designed servo motor programming, two servos fixed under the pedal pull four connecting rods, allowing the pedal to achieve a rotation of nearly 150 degrees. This design not only enables ankle movement in a conscious state but also effectively facilitates ankle movement in postoperative patients under anesthesia or in a coma, providing a more flexible and diverse rehabilitation treatment plan. By connecting the healthy limb's ankle to the pedal and using levers to drive the movement of the patient's affected limb's ankle, this invention allows the patient to actively move the affected limb with the healthy limb while conscious. Patients can adjust the rotation angle according to their perceived pain level to avoid excessive movement and discomfort. This design allows patients to flexibly adjust their range of motion according to their own condition during rehabilitation, effectively avoiding the risks caused by excessive rotation angle of the servo mechanism, thus ensuring safety and comfort during rehabilitation. This invention, through a finely designed servo and connecting rod system, can effectively control the rotation angle and range of motion of the pedal, enabling patients to achieve effective ankle movement whether awake or post-operatively. The precise programming of the servo and the traction force of the connecting rod provide sufficient support and flexibility, allowing the device to adapt to the needs of patients at different stages of rehabilitation and promote the recovery of ankle function.

[0050] In summary, this utility model can achieve ankle rotation by using a universal wheel and a connecting lever.

[0051] This invention enables continuous passive ankle movement by using two servo motors to pull four connecting rods. It also allows for active movement of the affected ankle on the other side of the connecting lever by rotating the healthy ankle. The sliding groove at the bottom of the ankle pump device adjusts the pedal height according to the user's posture, achieving optimal interaction.

[0052] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A medical ankle pump-assisted exercise device, characterized in that, It includes a chassis assembly (1), a motorized traction structure (2), and a foot pedal lever structure (3); The foot pedal lever structure (3) and the motorized traction structure (2) are both mounted on the chassis assembly (1); and the foot pedal lever structure (3) is connected to the motorized traction structure (2); The motorized traction structure (2) is used to drive the patient's affected limb to perform passive ankle movement; The chassis assembly (1) includes a chassis (11); The foot pedal lever structure (3) includes a foot pedal (31), a connecting lever (32), and a caster wheel (33); the foot pedal (31) is directly or indirectly mounted on the end of the connecting lever (32); the connecting lever (32) is mounted on the chassis (11) via the caster wheel (33); the motorized traction structure (2) includes a servo assembly (21), a servo connector (22), and a connecting element group; the connecting element group includes an upper connecting element (231) and a lower connecting element (232); The servo assembly (21) includes a servo (211) and a torsion bar (212). The servo (211) is mounted on the chassis (11) via a servo connector (22). The torsion bar (212) is mounted on the output shaft of the servo (211). The upper end of the torsion bar (212) is directly or indirectly connected to the foot pedal (31) via an upper connecting element (231), and the lower end of the torsion bar (212) is directly or indirectly connected to the foot pedal (31) via a lower connecting element (232).

2. The medical ankle pump-assisted exercise device according to claim 1, characterized in that, The upper connecting element (231) and the lower connecting element (232) are the upper connecting rod and the lower connecting rod, respectively.

3. The medical ankle pump-assisted exercise device according to claim 1, characterized in that, The motorized traction structure (2) also includes a footrest fixing plate (23); The foot pedal (31) is mounted on the foot rest fixing plate (23), and the foot pedal (31) and the connecting lever (32) are rotatably connected through the foot rest fixing plate (23); The upper connecting element (231) is connected to the foot pedal (31) through one end of the footrest fixing plate (23), and the lower connecting element (232) is connected to the foot pedal (31) through the other end of the footrest fixing plate (23).

4. The medical ankle pump-assisted exercise device according to claim 1, characterized in that, There are two foot pedals (31), which are installed on both sides of the connecting lever (32); the two foot pedals (31) are symmetrically distributed along the universal wheel (33); The motorized traction structure (2) corresponds one-to-one with the foot pedal (31).

5. The medical ankle pump-assisted exercise device according to claim 4, characterized in that, The output shaft of the servo motor (211) is connected to the middle of the torsion bar (212).

6. The medical ankle pump-assisted exercise device according to claim 1, characterized in that, The angle between the foot pedal (31) and the horizontal plane is between 0° and 90°.

7. The medical ankle pump-assisted exercise device according to claim 1, characterized in that, The foot pedal (31) includes a footrest base (311) and a footrest fixing member (312); The footrest fastener (312) is mounted on the footrest base (311).

8. The medical ankle pump-assisted exercise device according to claim 1, characterized in that, The chassis (11) is a rubber chassis.

9. The medical ankle pump-assisted exercise device according to claim 1, characterized in that, The chassis assembly (1) also includes a height adjustment structure; the chassis (11) is connected to the external hospital bed through the height adjustment structure, which is used to adjust the height of the chassis (11) to adjust the height of the foot pedal (31).

10. The medical ankle pump-assisted exercise device according to claim 9, characterized in that, The height adjustment structure includes a fixed slide rail (4) and a telescopic slide rail (5). The fixed slide rail (4) is installed on the external hospital bed, and the telescopic slide rail (5) is installed on the chassis (11). The telescopic slide rail (5) is slidably connected to the fixed slide rail (4); Both the fixed slide rail (4) and the telescopic slide rail (5) are provided with multiple bolt holes along the height direction. The bolt holes are used with bolts to fix the relative position of the telescopic slide rail (5) and the fixed slide rail (4).

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