Multifunctional orthopedic rehabilitation training step machine

Abstract

The utility model relates to medical instrument technical field especially is concerned with a kind of multifunctional orthopedics rehabilitation training step device, including base, footboard, hinge, sliding slot, sliding block, damping rod and angle adjusting mechanism, footboard is rotationally connected with the base by hinge, and footboard is symmetrically provided with two, and sliding slot is penetrated and set on the base, sliding slot is located at the bottom of footboard, and sliding block is slidably connected in sliding slot, damping rod is arranged between sliding block and footboard, and the both ends of damping rod are rotationally connected with sliding block and footboard by hinge.The utility model utilizes hinge to realize the rotationally connected of footboard and base, and the sliding block in sliding slot and the damping rod with hinge at both ends are combined, which provides basic support for stepping action, and can also buffer the impact force of stepping through damping rod, avoid the sudden force injury of lower limb joint during training, and realize angle adjustable by cooperating subsequent angle adjusting mechanism, solve the problem of poor adaptability of fixed angle.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a multifunctional orthopedic rehabilitation training stepper. Background Technology

[0002] In the field of orthopedic clinical rehabilitation, steppers, as core training equipment for simulating walking gait, are widely used in the rehabilitation process of patients after lower limb fracture surgery, joint replacement surgery, and motor dysfunction caused by nerve injury. Their core function is to restore lower limb muscle strength, improve joint mobility, and rebuild gait coordination through repetitive stepping movements, providing key support for patients to return to normal walking function.

[0003] Currently, most mainstream orthopedic rehabilitation steppers adopt a "fixed transmission mechanism + foot pedal assembly" design. That is, the connection angle and movement trajectory between the foot pedal and the main body of the device are preset by the mechanical structure, and the stepping angle remains constant during training. Although this type of design can meet the basic rehabilitation training needs, it has revealed significant limitations in clinical applications. The core problem lies in its inability to adapt to the individualized rehabilitation needs of different patients.

[0004] In related technologies, because the stepping angle is not adjustable, some patients need to passively adapt to the preset angle of the device during training. If the angle is too large, it may exceed the patient's current maximum range of motion, causing excessive traction on the joint capsule and ligaments, resulting in pain or aggravating the injury. If the angle is too small, it cannot effectively activate the target training muscle groups, resulting in "ineffective training." In addition, the fixed angle is difficult to match the patient's natural walking gait trajectory, which can easily cause discomfort to the patient and reduce the compliance of rehabilitation training. Orthopedic rehabilitation requires the design of special training programs for different injury sites. For example, for patients with ankle joint dysfunction, it is necessary to focus on adjusting the forward and backward tilt angle of the foot pedal to train the ankle joint dorsiflexion and plantar flexion functions. Existing fixed-angle steppers cannot achieve the above-mentioned specialized adjustments, have a single function, and cannot meet the needs of multi-site and multi-stage orthopedic rehabilitation training, thus limiting their application scenarios in clinical rehabilitation. Utility Model Content

[0005] To address the problems of current multifunctional orthopedic rehabilitation training steppers, which use a fixed step angle design and cannot adapt to the individual differences of different patients or the needs of the same patient at different rehabilitation stages, resulting in insufficient safety, limited training effects, and narrow scenario coverage, thus failing to meet the needs of precise and individualized clinical rehabilitation training, this utility model provides a multifunctional orthopedic rehabilitation training stepper.

[0006] The multifunctional orthopedic rehabilitation training stepper provided by this utility model adopts the following technical solution: A multifunctional orthopedic rehabilitation training stepper, comprising: The base has two foot pedals symmetrically arranged on it, which are rotatably connected to the base via hinges. A sliding groove is provided through the base, located at the bottom of the foot pedal. A slider is slidably engaged in the sliding groove. A damping rod is provided between the slider and the foot pedal. The two ends of the damping rod are rotatably connected to the slider and the foot pedal respectively via hinges. An angle adjustment mechanism is used to adjust the angle between the foot pedal and the base. The angle adjustment mechanism includes a threaded rod and a threaded hole. The threaded rod is rotatably connected to the bottom of the base. The threaded hole is disposed through the slider, and the threaded rod is threaded into the threaded hole.

[0007] By adopting the above technical solution, the foot pedal and the base are rotatably connected by a hinge. Combined with the slider sliding in the groove and the damping rod with hinges at both ends, it provides basic support for stepping movements and buffers the impact force of stepping through the damping rod, avoiding sudden force injury to the lower limb joints during training. At the same time, the subsequent angle adjustment mechanism enables angle adjustment, solving the problem of poor adaptability of fixed angles. The threaded rod and the threaded hole on the slider are threaded together. Rotating the threaded rod will drive the slider to slide along the groove, and then push the foot pedal to rotate around the hinge through the damping rod, realizing precise adjustment of the angle between the foot pedal and the base. The operation is simple and the adjustment is stable, which can adapt to the angle needs of different patients with different lower limb lengths, joint range of motion and different rehabilitation stages.

[0008] Optionally, the angle adjustment mechanism further includes a first pulley, a belt, and a second pulley. The first pulley is coaxially fixed to one end of one of the threaded rods, and the second pulley is coaxially rotatably connected to one end of the other threaded rod. The belt is disposed between the first pulley and the second pulley.

[0009] By adopting the above technical solution, the first and second pulleys are driven by belts. When one of the threaded rods is rotated, the other threaded rod can be driven to rotate synchronously through the belt drive, so that the two sliders slide synchronously. This ensures that the angles of the foot pedals on both sides are always consistent, avoiding gait deviation or excessive force on one side of the joint due to asymmetry of the angles on both sides, and improving the safety and standardization of training.

[0010] Optionally, the angle adjustment mechanism further includes a linkage plate, a positioning hole, and a pin. The linkage plate is coaxially fixed to one end of another threaded rod and located on one side of the second pulley. The positioning hole is respectively provided through the edges of the second pulley and the linkage plate, and the pin is inserted into the positioning hole.

[0011] By adopting the above technical solution, when the pin is inserted into the positioning hole of the linkage plate and the second belt pulley, the two can be driven synchronously; when the pin is pulled out, the second belt pulley is disengaged from the linkage plate, and the threaded rods on both sides can rotate independently, supporting differentiated angle adjustment of the foot pedals on both sides, which is suitable for the asymmetrical training needs of patients with unilateral lower limb injuries and expands the applicable scenarios of the equipment.

[0012] Optionally, a tensioning disc is rotatably connected to the bottom of the base, and the peripheral wall of the tensioning disc abuts against the belt.

[0013] By adopting the above technical solution, the tension of the belt is adjusted by using a tensioning disc, which avoids transmission lag and slippage caused by belt loosening after long-term use, ensures the stability of synchronous rotation of the double threaded rod, ensures the accuracy of angle adjustment, and extends the service life of the belt drive structure.

[0014] Optionally, the peripheral walls of the first pulley, the second pulley, and the tensioning disc are all provided with annular grooves, and the belt is engaged in the annular grooves.

[0015] By adopting the above technical solution, the annular groove is used to limit the belt, preventing the belt from shifting or falling off along the pulley axis during transmission, further improving the stability of the belt drive, and ensuring that the foot pedals on both sides move synchronously and the angle is accurate during angle adjustment.

[0016] Optionally, one end of the pin is provided with a magnetic disk with a diameter larger than the positioning hole, and the magnetic disk is magnetically connected to the linkage disk.

[0017] By adopting the above technical solution, the diameter of the magnetic disk is larger than that of the positioning hole, which can prevent the pin from being completely detached from the positioning hole and lost. At the same time, the magnetic disk and the linkage disk are magnetically connected, which can stably fix the pin in the positioning hole, avoiding the pin from falling off due to vibration during training and ensuring the stability of the linkage / independent adjustment state.

[0018] Optionally, one end of the threaded rod is fixed with a rocker arm, which has a Z-shaped structure.

[0019] By adopting the above technical solution, the lever arm of the rotating threaded rod is increased by using the Z-shaped rocker arm, which reduces the force required to rotate the threaded rod. This allows medical staff or patients to easily rotate the rocker arm to adjust the angle, making the operation more labor-saving. It is especially suitable for patients with weak strength after surgery to adjust independently or for medical staff to make quick adjustments.

[0020] Optionally, a foot limiting frame is fixed at the top edge of the foot pedal.

[0021] By adopting the above technical solution, the foot limiting frame can fix the position of the patient's foot and prevent the foot from slipping off the foot pedal during training.

[0022] Optionally, a rubber pad is provided on the inner wall of the foot limiting frame, and an anti-slip pad is provided on the top of the foot pedal.

[0023] By adopting the above technical solution, the rubber pad can buffer the contact force between the foot and the foot limit frame, avoiding squeezing damage; the anti-slip pad on the top of the foot pedal increases the friction between the foot and the foot pedal, further preventing the foot from slipping. The triple protection improves the stability and comfort of the foot during training.

[0024] Optionally, the base is detachably connected to the four corners by nuts with support legs.

[0025] By adopting the above technical solution, the support legs can be detached via nuts. On the one hand, this makes it easy to replace the support legs with different heights according to the training scenario and adjust the overall height of the equipment. On the other hand, when the support legs are damaged, they can be disassembled and replaced individually without replacing the entire base, thus reducing equipment maintenance costs.

[0026] In summary, this utility model has at least one of the following beneficial technical effects: The foot pedal and base are connected by hinges, and the slider that slides in the groove and the damping rod with hinges at both ends provide basic support for stepping. The damping rod also buffers the impact of stepping, preventing sudden force injury to the lower limb joints during training. At the same time, the subsequent angle adjustment mechanism makes the angle adjustable, solving the problem of poor adaptability of fixed angle. The threaded rod and the threaded hole on the slider are threaded together. Rotating the threaded rod will drive the slider to slide along the groove, and then push the foot pedal to rotate around the hinge through the damping rod, so as to achieve precise adjustment of the angle between the foot pedal and the base. The operation is simple and the adjustment is stable. It can adapt to the angle needs of different patients with different lower limb lengths, joint range of motion and different rehabilitation stages. By using the first and second pulleys to drive one of the threaded rods through belt transmission, the other threaded rod can be driven to rotate synchronously through the belt transmission, so that the two sliders slide synchronously. This ensures that the angles of the foot pedals on both sides are always consistent, avoiding gait deviation or excessive force on one side of the joint due to asymmetry of the angles on both sides, and improving the safety and standardization of training. When the pin is inserted into the positioning hole of the linkage plate and the second belt pulley, synchronous transmission between the two can be achieved; when the pin is pulled out, the second belt pulley is disengaged from the linkage plate, and the threaded rods on both sides can rotate independently, supporting differentiated angle adjustment of the foot pedals on both sides. This is suitable for the asymmetrical training needs of patients with unilateral lower limb injuries, expanding the applicable scenarios of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the external structure of a multifunctional orthopedic rehabilitation training stepper in this embodiment.

[0028] Figure 2This is a schematic diagram of the angle adjustment mechanism in this embodiment.

[0029] Figure 3 This is a schematic diagram of the connection structure between the foot pedal and the damping rod in this embodiment.

[0030] Figure 4 This is a schematic diagram of the belt and its overall connection structure in this embodiment.

[0031] Figure 5 This is a schematic diagram of the pin connection structure in this embodiment.

[0032] Explanation of reference numerals in the attached figures: 1. Base; 2. Foot pedal; 3. Hinge; 4. Slide groove; 5. Slider; 6. Damping rod; 7. Angle adjustment mechanism; 71. Threaded rod; 72. Threaded hole; 73. First pulley; 74. Belt; 75. Second pulley; 76. Linkage plate; 77. Positioning hole; 78. Pin; 79. Tensioning plate; 8. Rocker arm; 9. Foot limit frame; 10. Support foot. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0034] This utility model discloses a multifunctional orthopedic rehabilitation training stepper.

[0035] It should be noted that in the description of this utility model, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 utility model 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 utility model.

[0036] Reference Figure 1 and Figure 2A multifunctional orthopedic rehabilitation training stepper includes a base 1, foot pedals 2, hinges 3, a slide groove 4, a slider 5, a damping rod 6, and an angle adjustment mechanism 7. Two foot pedals 2 are symmetrically arranged on the base 1 and rotatably connected to the base 1 via the hinges 3. A slide groove 4 is formed through the base 1, located at the bottom of the foot pedals 2. A slider 5 is slidably engaged within the slide groove 4. A damping rod 6 is positioned between the slider 5 and the foot pedals 2, with both ends of the damping rod 6 rotatably connected to the slider 5 and the foot pedals 2 respectively via the hinges 3. The angle adjustment mechanism 7 includes a threaded rod 71 and a threaded hole 72. The hinges 3 enable the rotatable connection between the foot pedals 2 and the base 1, and the slide groove 4... The sliding slider 5 and the damping rod 6 with hinges 3 at both ends provide basic support for stepping movements and buffer the impact of stepping through the damping rod 6, avoiding sudden force injury to the lower limb joints during training. At the same time, in conjunction with the subsequent angle adjustment mechanism, the angle can be adjusted, solving the problem of poor adaptability of fixed angle. The threaded rod 71 is threadedly engaged with the threaded hole 72 on the slider 5. Rotating the threaded rod 71 will drive the slider 5 to slide along the slide groove 4, and then push the foot pedal 2 to rotate around the hinge 3 through the damping rod 6, realizing precise adjustment of the angle between the foot pedal 2 and the base 1. The operation is simple and the adjustment is stable, which can adapt to the angle needs of different patients with different lower limb lengths, joint range of motion and different rehabilitation stages.

[0037] Specifically, the threaded rod 71 is rotatably connected to the bottom of the base 1, the threaded hole 72 is provided through the slider 5, and the threaded rod 71 is threaded into the threaded hole 72.

[0038] Reference Figure 3 and Figure 4 In this embodiment of the utility model, the angle adjustment mechanism 7 further includes a first belt pulley 73, a belt 74, and a second belt pulley 75. The first belt pulley 73 and the second belt pulley 75 are driven by the belt 74. When one of the threaded rods 71 ​​is rotated, the other threaded rod 71 can be driven to rotate synchronously through the belt, so that the two sliders 5 slide synchronously, ensuring that the angles of the foot pedals 2 on both sides are always consistent, avoiding gait deviation or excessive force on one side of the joint due to asymmetry of the angles on both sides, and improving the safety and standardization of training.

[0039] The first pulley 73 is coaxially fixed to one end of one of the threaded rods 71, the second pulley 75 is coaxially rotatably connected to one end of another threaded rod 71, and the belt 74 is disposed between the first pulley 73 and the second pulley 75.

[0040] Reference Figure 5Specifically, in this embodiment of the present invention, the angle adjustment mechanism 7 further includes a linkage plate 76, a positioning hole 77, and a pin 78. When the pin 78 is inserted into the positioning hole 77 of the linkage plate 76 and the second belt pulley 75, synchronous transmission between the two can be achieved. When the pin 78 is pulled out, the second belt pulley 75 is disengaged from the linkage plate 76, and the threaded rods 71 ​​on both sides can rotate independently, supporting differentiated angle adjustment of the foot pedals 2 on both sides. This is suitable for the asymmetrical training needs of patients with unilateral lower limb injuries and expands the applicable scenarios of the equipment.

[0041] In this embodiment of the utility model, the linkage disc 76 is coaxially fixed to one end of another threaded rod 71 and located on one side of the second belt disc 75. The positioning hole 77 is respectively provided through the edges of the second belt disc 75 and the linkage disc 76, and the pin 78 is inserted into the positioning hole 77.

[0042] Specifically, a tensioning disc 79 is rotatably connected to the bottom of the base 1. The periphery of the tensioning disc 79 abuts against the belt 74. The tensioning disc 79 is used to adjust the tension of the belt 74 to avoid transmission lag and slippage caused by belt loosening after long-term use, ensure the stability of synchronous rotation of the double threaded rod 71, ensure the accuracy of angle adjustment, and extend the service life of the belt drive structure.

[0043] The peripheral walls of the first pulley 73, the second pulley 75, and the tensioning plate 79 are all provided with annular grooves. The belt 74 is engaged in the annular grooves, which limit the belt 74 and prevent it from shifting or falling off along the pulley axis during transmission. This further improves the stability of the belt drive and ensures that the foot pedals 2 on both sides move synchronously and the angle is accurate during angle adjustment.

[0044] In this embodiment, one end of the pin 78 is provided with a magnetic disk with a diameter larger than that of the positioning hole 77, and the magnetic disk is magnetically connected to the linkage disk 76. The diameter of the magnetic disk is larger than that of the positioning hole 77, which can prevent the pin 78 from completely detaching from the positioning hole 77 and being lost. At the same time, the magnetic disk and the linkage disk 76 are magnetically connected, which can stably fix the pin 78 in the positioning hole 77, avoid the pin 78 from falling off due to vibration during training, and ensure the stability of the linkage / independent adjustment state.

[0045] Specifically, a rocker arm 8 is fixed to one end of the threaded rod 71. The rocker arm 8 has a Z-shaped structure. The Z-shaped rocker arm 8 increases the lever arm of rotating the threaded rod 71 and reduces the force required to rotate the threaded rod 71. This allows medical staff or patients to easily rotate the rocker arm to adjust the angle, making the operation more labor-saving. It is especially suitable for patients with weak strength after surgery to adjust independently or for medical staff to make quick adjustments.

[0046] A foot restraint frame 9 is fixed to the top edge of the foot pedal 2. The inner wall of the foot restraint frame 9 is provided with a rubber pad, and an anti-slip pad is provided on the top of the foot pedal 2. The foot restraint frame 9 can fix the position of the patient's foot and prevent the foot from slipping off the foot pedal 2 during training. The rubber pad can also cushion the contact force between the foot and the foot restraint frame 9 to avoid squeezing injuries. The anti-slip pad on the top of the foot pedal 2 increases the friction between the foot and the foot pedal, further preventing the foot from slipping. The triple protection improves the stability and comfort of the foot during training.

[0047] In this embodiment, the four corners of the base 1 are detachably connected to support legs 10 by nuts. The support legs 10 are detachable by nuts, which makes it easy to replace the support legs 10 with different heights according to the training scenario and adjust the overall height of the equipment. On the other hand, when the support legs 10 are damaged, they can be disassembled and replaced separately without replacing the entire base 1, thus reducing the equipment maintenance cost.

[0048] The implementation principle of a multifunctional orthopedic rehabilitation training stepper according to this utility model embodiment is as follows: First, insert the pin 78 into the positioning hole 77 of the linkage plate 76 and the second belt plate 75 to fix them magnetically; rotate the Z-shaped rocker arm 8 to drive one of the threaded rods 71 ​​to rotate, and through the transmission of the first belt plate 73, belt 74 and second belt plate 75, drive the other threaded rod 71 to rotate synchronously; the threaded rod 71 is threadedly engaged with the threaded hole 72 of the slider 5, pushing the slider 5 to slide along the slide groove 4, and then through the damping rod 6 to drive the foot pedal 2 to rotate around the hinge 3 until the angle between the two foot pedals 2 and the base 1 is adapted to the patient's joint range of motion; If the angle of foot pedal 2 needs to be adjusted separately, pull out the pin 78 to release the linkage between the linkage plate 76 and the second belt pulley 75; rotate the rocker arms 8 on both sides respectively, and independently adjust the corresponding threaded rods 71 ​​to make the sliders 5 on both sides slide asynchronously, so as to realize the angle of foot pedal 2 on one side can be adjusted separately, which can meet the asymmetrical needs of patients with unilateral lower limb injuries.

[0049] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A multifunctional orthopedic rehabilitation training stepper, characterized in that, include: A base (1) is provided with a foot pedal (2) rotatably connected to the base (1) via a hinge (3). Two foot pedals (2) are symmetrically arranged. A sliding groove (4) is provided through the base (1). The sliding groove (4) is located at the bottom of the foot pedal (2). A slider (5) is slidably engaged in the sliding groove (4). A damping rod (6) is provided between the slider (5) and the foot pedal (2). The two ends of the damping rod (6) are rotatably connected to the slider (5) and the foot pedal (2) respectively via a hinge (3). An angle adjustment mechanism (7) is used to adjust the angle between the foot pedal (2) and the base (1). The angle adjustment mechanism (7) includes a threaded rod (71) and a screw hole (72). The threaded rod (71) is rotatably connected to the bottom of the base (1). The screw hole (72) is disposed through the slider (5). The threaded rod (71) is threaded into the screw hole (72).

2. The multifunctional orthopedic rehabilitation training stepper according to claim 1, characterized in that, The angle adjustment mechanism (7) further includes a first pulley (73), a belt (74), and a second pulley (75). The first pulley (73) is coaxially fixed to one end of one of the threaded rods (71), and the second pulley (75) is coaxially rotatably connected to one end of the other threaded rod (71). The belt (74) is disposed between the first pulley (73) and the second pulley (75).

3. The multifunctional orthopedic rehabilitation training stepper according to claim 2, characterized in that, The angle adjustment mechanism (7) further includes a linkage disc (76), a positioning hole (77), and a pin (78). The linkage disc (76) is coaxially fixed to one end of another threaded rod (71) and located on one side of the second pulley (75). The positioning hole (77) is respectively disposed through the edges of the second pulley (75) and the linkage disc (76). The pin (78) is inserted into the positioning hole (77).

4. The multifunctional orthopedic rehabilitation training stepper according to claim 3, characterized in that, The bottom of the base (1) is rotatably connected to a tensioning disc (79), and the periphery of the tensioning disc (79) abuts against the belt (74).

5. A multifunctional orthopedic rehabilitation training stepper according to claim 4, characterized in that, The first belt pulley (73), the second belt pulley (75) and the tensioning plate (79) are all provided with annular grooves on their peripheral walls, and the belt (74) is engaged in the annular grooves.

6. A multifunctional orthopedic rehabilitation training stepper according to claim 3, characterized in that, One end of the pin (78) is provided with a magnetic disk with a diameter larger than that of the positioning hole (77), and the magnetic disk is magnetically connected to the linkage disk (76).

7. A multifunctional orthopedic rehabilitation training stepper according to claim 1, characterized in that, One end of the threaded rod (71) is fixed with a rocker arm (8), which has a Z-shaped structure.

8. A multifunctional orthopedic rehabilitation training stepper according to claim 1, characterized in that, A foot limiting frame (9) is fixed at the top edge of the foot pedal (2).

9. A multifunctional orthopedic rehabilitation training stepper according to claim 8, characterized in that, The inner wall of the foot limiting frame (9) is provided with a rubber pad, and an anti-slip pad is provided on the top of the foot pedal (2).

10. A multifunctional orthopedic rehabilitation training stepper according to claim 1, characterized in that, The base (1) has detachable support feet (10) at its four corners via nuts.

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