CN113476277B - Multifunctional lower limb training device - Google Patents
Multifunctional lower limb training device Download PDFInfo
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- CN113476277B CN113476277B CN202110966614.5A CN202110966614A CN113476277B CN 113476277 B CN113476277 B CN 113476277B CN 202110966614 A CN202110966614 A CN 202110966614A CN 113476277 B CN113476277 B CN 113476277B
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- fixing structure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0237—Stretching or bending or torsioning apparatus for exercising for the lower limbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0119—Support for the device
- A61H2201/0138—Support for the device incorporated in furniture
- A61H2201/0142—Beds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/12—Driving means
- A61H2201/1207—Driving means with electric or magnetic drive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/16—Physical interface with patient
- A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
- A61H2201/164—Feet or leg, e.g. pedal
- A61H2201/1642—Holding means therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/10—Leg
- A61H2205/106—Leg for the lower legs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
- A61H2205/10—Leg
- A61H2205/108—Leg for the upper legs
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
Abstract
本发明提供了一种多功能下肢训练装置，包括：床体；训练模块，包括支撑在床体上的支撑架、与所述支撑架旋转连接的翻转板、大腿固定结构和小腿固定结构，所述大腿固定结构和小腿固定结构支撑所述翻转板上且均沿着预定的轨迹可移动，大腿固定结构用于对躺在床体的训练者的大腿进行固定，小腿固定结构用于对所述训练者的小腿进行固定。该训练装置能够主动地实现对下肢的训练。
The present invention provides a multifunctional lower limb training device, comprising: a bed; a training module, comprising a support frame supported on the bed, a flip board rotatably connected to the support frame, a thigh fixing structure and a calf fixing structure, wherein the thigh fixing structure and the calf fixing structure support the flip board and are both movable along a predetermined track, the thigh fixing structure is used to fix the thigh of a trainee lying on the bed, and the calf fixing structure is used to fix the calf of the trainee. The training device can actively realize the training of the lower limbs.
Description
Technical Field
The invention relates to the field of medical rehabilitation, in particular to a multifunctional lower limb training device.
Background
Along with the trend of aging population worldwide, the occurrence of diseases such as cerebral vessels, nervous systems and the like is more and more, and the dysfunction of lower limbs is caused, so that the normal life of patients is seriously influenced, and therefore, rehabilitation training for the lower limb functions becomes a very critical medical means. Most of lower limb rehabilitation medical equipment in the current market has a certain limitation in practical application, and a hemiplegic part is required to have a certain muscle strength and then get out of a bed to finish rehabilitation training, such as a treadmill training machine. In the early postoperative rehabilitation stage, the hemiplegic part of the patient has no muscle strength, and the patient can only rest in bed, so that the early intervention bedside passive training rehabilitation equipment can be developed for recovering the lower limb function early, reducing the possibility of disability. Common traditional postoperative initial stage rehabilitation training is mostly carried out one-to-one rehabilitation training of medical therapist or accompanying personnel's hand grip, and this mode intensity of labour is higher, is difficult to guarantee persistence and stability, and because therapist's level difference, patient postoperative rehabilitation quality also consequently great difference. Another traditional training is that the patient stands or bends on the training bed, and the power source of the mode is mainly assisted by manpower, and meanwhile, certain potential safety hazards exist due to the lacing of the binding belt. The existing airbag type bedside auxiliary rehabilitation equipment stimulates the muscles of the human body to perform auxiliary rehabilitation more, and joint movement training cannot be performed, so that the overall rehabilitation effect is relatively general; the rehabilitation training device is also used for rehabilitation training which is completed after the feet of the patient are lifted, has a certain test on the physical strength of the patient, and cannot adapt to different training in different rehabilitation periods.
Disclosure of Invention
The invention mainly aims to provide a multifunctional lower limb training device which can actively drive lower limbs to move so as to train patients with lower limb weakness.
In order to achieve the purpose, the invention adopts the technical scheme that the multifunctional lower limb training device comprises:
a bed body;
the training module comprises a support frame supported on a bed body, a turnover plate rotatably connected with the support frame, a thigh fixing structure and a shank fixing structure, wherein the thigh fixing structure and the shank fixing structure are supported on the turnover plate and are movable along a preset track, the thigh fixing structure is used for fixing thighs of a trainer lying on the bed body, and the shank fixing structure is used for fixing shanks of the trainer.
Preferably, the thigh fixed knot constructs adopts thigh training actuating mechanism to drive, shank fixed knot constructs adopts shank training actuating mechanism to drive, thigh training actuating mechanism with shank training actuating mechanism's structure is the same, all includes:
the first mounting plate is mounted on one side of the overturning plate;
the first screw rod is rotatably arranged on the first mounting plate;
the first sliding block is in threaded fit with the first screw rod;
The second mounting plate is arranged on the first sliding block;
The second screw rod is rotatably arranged on the second mounting plate, the second screw rod is perpendicular to the axis of the first screw rod, and the first screw rod and the second screw rod are parallel to the plane where the turnover plate is located;
And the second sliding block is in threaded fit with the second screw rod, and the thigh fixing structure and the shank fixing structure are respectively arranged on the corresponding second sliding blocks.
Preferably, a first arc-shaped groove and a second arc-shaped groove are respectively arranged at the preset track positions corresponding to the thigh fixing structure and the shank fixing structure on the turnover plate, connecting rods are respectively arranged on the thigh training driving mechanism and the second sliding block of the shank training driving mechanism, the two connecting rods respectively penetrate through the corresponding first arc-shaped groove and the corresponding second arc-shaped groove, and the thigh fixing structure and the shank fixing structure are respectively connected to the corresponding connecting rods.
Preferably, a first mounting groove and a second mounting groove are respectively formed in positions of the turnover plate corresponding to the thigh fixing structure and the first mounting plate of the shank fixing structure, and the two first mounting plates are respectively mounted in the first mounting groove and the second mounting groove.
Preferably, a photoelectric sensor is arranged at one end of the first mounting plate, a baffle is arranged on the first sliding block and can move between a transmitting end and a receiving end of the photoelectric sensor, and a limit switch is arranged at one end, close to the first mounting plate, of the second mounting plate.
Preferably, the device further comprises an angle adjusting mechanism for adjusting the rotation angle of the turnover plate relative to the support frame, the angle adjusting mechanism comprising:
The fixed plate is fixed on one side of the support frame, which is close to the bed tail, and extends along the horizontal direction perpendicular to the rotation axis of the turnover plate, and a chute is arranged on the fixed plate and extends along the extending direction of the fixed plate;
the adjusting screw passes through the sliding groove and can slide along the extending direction of the sliding groove;
The turning connecting rod, one end of which is in threaded connection with the adjusting screw, and the other end of which is hinged with the turning plate, and the fixing or the moving of the turning connecting rod relative to the fixing plate can be realized by screwing the adjusting screw.
Preferably, one side of the support frame connected with the overturning plate is suspended, an avoidance space is formed between the suspended part and the bed body, when a trainer lies on one side, one leg of the training is placed on the overturning plate, and the other leg is placed in the avoidance space.
Preferably, the support frame and one end of the turnover plate, which is close to the bed head, are respectively provided with an inward concave avoidance arc surface on one side of the support frame, which is connected with the turnover plate.
Compared with the prior art, the invention has the following beneficial effects:
1) The invention can drive the thigh and the shank respectively, can move according to the preset track, and further can train the lower limbs, and can automatically carry the thigh and the shank to move back and forth by the training device without the exertion of force of a trainer during training.
2) The turnover plate can turn over, can adjust different angles, and then can adjust the angle according to the condition of training person in order to train.
Drawings
FIGS. 1 and 2 are block diagrams according to a preferred embodiment of the present invention;
FIG. 3 is a block diagram of a training module of the present invention;
FIG. 4 is an exploded view of the training module of the present invention;
FIG. 5 is a block diagram of a support frame of the present invention;
fig. 6 and 7 are structural views of a driving module of the present invention;
fig. 8 is a training diagram of the roll-over panel in a vertical state.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
As shown in fig. 1 to 8, a multifunctional lower limb training device comprises a bed body 1 and a training module 3 arranged on the bed body 1, wherein the training module 3 comprises a thigh fixing structure 3517 and a shank fixing structure 3217, the thigh fixing structure 3517 is used for fixing the thigh of a trainer lying on the bed body 1, and the shank fixing structure 3217 is used for fixing the shank of the trainer. The thigh fixing structure 3517 and the shank fixing structure 3217 can move along a predetermined track, and further can drive the thigh and the shank to move, so as to realize training of lower limbs. The thigh securing structures 3517 and the shank securing structures 3217 may be secured using straps or other securing means known in the art.
The training module 3 further comprises a support frame 34 arranged on the bed body 1, and a turnover plate 31 rotatably supported on the support frame 34 through a hinge 331, wherein the rotation axis of the hinge 331 is parallel to the length direction of the bed body 1 or the lying direction of the trainer on the bed body 1. The thigh fixing structure 3517 and the shank fixing structure 3217 are movably disposed on the turnover plate 31 along the predetermined track, and the angle of the turnover plate 31 can be adjusted by rotating the turnover plate 31, so that the training can be performed according to the training requirement.
Further, the thigh fixing structure 3517 is driven by a thigh training driving mechanism 35, the shank fixing structure 3517 is driven by a shank training driving mechanism 32, and the thigh training driving mechanism 35 and the shank training driving mechanism 32 have the same structure, but slightly different sizes and different placement angles.
The calf training driving mechanism 32 includes a first mounting plate 322 mounted on one side of the flipping plate 31, a first screw 325 rotatably provided on the first mounting plate 322, a first slider 326 engaged with the first screw 325, a second mounting plate 3210 provided on the first slider 326, a second screw 3213 rotatably provided on the second mounting plate 3210, and a second slider 3214 screw-engaged with the second screw 3213, the axis of the first screw 325 being perpendicular to the axis of the second screw 3213. The shank fixation structure 3217 is connected to the second slider 3214 through a connecting rod 3216, the connecting rod 3216 penetrates through the turnover plate 31, and the shank fixation structure 3217 can be driven to move along a predetermined track by controlling the rotation of the first screw rod 325 and the second screw rod 3213. The first mounting plate 322 is provided with a first motor 321, an output shaft of the first motor 321 is connected to the first screw 325, and rotation of the first screw 325 can be controlled by the first motor 321. A second motor 329 is arranged on the second mounting plate 3210, the second motor 329 is in transmission connection with the second screw rod 3213, and the second motor 329 can drive the second screw rod 3213 to rotate. A first guide rail 323 is provided on a side of the first mounting plate 322 facing the first screw 325, and the first slider 326 is engaged with the first guide rail 323. A second guide rail 3212 is provided on a side of the second mounting plate 3210 facing the second screw rod 3213, and the second slider 3214 is engaged with the second guide rail 3212.
Further, a photoelectric sensor 324 is disposed at one end of the first mounting plate 322, a blocking piece 327 is disposed on the first slider 326, the blocking piece 327 can move between a transmitting end and a receiving end of the photoelectric sensor 324, at this time, the first slider 326 is in place, and the first motor 321 stops rotating. Of course, in practical use, a photoelectric sensor 324 may be disposed at both ends of the first mounting plate 322, and other types of sensors in the prior art may be used. A limit switch 3211 is provided at an end of the second mounting plate 3210 near the first mounting plate 322, and when the second slider 3214 touches the limit switch 3211, the second slider 3214 is positioned at this time, and the second motor 329 stops rotating.
Specifically, a first arc-shaped groove 311 and a second arc-shaped groove 314 are respectively disposed on the turnover plate 31 at predetermined trajectories corresponding to the thigh fixing structure 3517 and the shank fixing structure 3217, the connecting rod 3216 of the shank training driving mechanism 32 passes through the second arc-shaped groove 314, the connecting rod of the thigh training driving mechanism 32 passes through the first arc-shaped groove 311, and the shapes of the first arc-shaped groove 311 and the second arc-shaped groove 314 are determined by the predetermined trajectories. Meanwhile, first mounting grooves 313 and second mounting grooves 312 are respectively provided at positions of the turnover plate 31 corresponding to the first mounting plates of the thigh fixing structure 3517 and the shank fixing structure 3217, and the two first mounting plates are respectively mounted in the first mounting grooves 313 and the second mounting grooves 312.
Further, an avoidance groove 343 is formed on the upper surface of the support frame 34, and the avoidance groove 343 is used for avoiding the second mounting plate 3210 and mounting the structure on the second mounting plate 3210.
Preferably, the training device further comprises an angle adjustment mechanism 33 for adjusting the rotation angle of the flipping panel 31 relative to the supporting frame 34. The angle adjusting mechanism 33 comprises a fixed plate 334 fixed on one side of the support frame 34 near the bed tail, a turning connecting rod 332 and an adjusting screw 333, wherein the fixed plate 334 is provided with a sliding groove extending along the horizontal direction perpendicular to the rotation axis of the turning plate 31, the adjusting screw 333 passes through the sliding groove and is in threaded connection with one end of the turning connecting rod 332, the other end of the turning connecting rod 332 is hinged with the turning plate 31, the adjusting screw 333 can move back and forth along the sliding groove, when the angle of the turning plate 31 needs to be adjusted, the adjusting screw 333 is unscrewed, after the turning plate 31 is adjusted in place, the adjusting screw 333 is screwed, and the turning connecting rod 332 plays a role in supporting the turning plate 31. The turning plate 31 has a rotation angle of 0-90 deg., i.e. the turning plate 31 can be adjusted between horizontal and vertical.
One side of the support frame 34 connected with the turnover plate 31 is suspended, an avoidance space 344 is formed between the suspended part and the bed body 1, and when the trainer 2 lies on one side, one leg of the training is placed on the turnover plate 31, and the other leg is placed in the avoidance space 344. The inward concave avoiding arc-shaped surfaces 341 are arranged at one ends of the supporting frame 34 and the turnover plate 31, which are close to the bed head, and at one side of the supporting frame 34, which is connected with the turnover plate 31, so that the blocking of the supporting frame 34 and the turnover plate 31 to the body part of the trainer can be reduced as much as possible.
In practical use, the training module 3 may be mounted on a bed, or may be mounted on other structures that can be laid down by a trainer, or all structures that can be laid down by a trainer may be defined as a bed.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A multi-functional lower limb training device, comprising:
a bed body;
The training module comprises a support frame supported on the bed body, a turnover plate rotatably connected with the support frame, a thigh fixing structure and a shank fixing structure, wherein the thigh fixing structure and the shank fixing structure are supported on the turnover plate and are movable along a preset track, the thigh fixing structure is used for fixing thighs of a trainer lying on the bed body, and the shank fixing structure is used for fixing shanks of the trainer;
thigh fixed knot constructs adopts thigh training actuating mechanism to drive, shank fixed knot constructs adopts shank training actuating mechanism to drive, thigh training actuating mechanism with shank training actuating mechanism's structure is the same, all includes:
the first mounting plate is mounted on one side of the overturning plate;
the first screw rod is rotatably arranged on the first mounting plate;
the first sliding block is in threaded fit with the first screw rod;
The second mounting plate is arranged on the first sliding block;
The second screw rod is rotatably arranged on the second mounting plate, the second screw rod is perpendicular to the axis of the first screw rod, and the first screw rod and the second screw rod are parallel to the plane where the turnover plate is located;
the second sliding block is in threaded fit with the second screw rod, and the thigh fixing structure and the shank fixing structure are respectively arranged on the corresponding second sliding blocks;
the thigh training driving mechanism and the shank training driving mechanism are mutually independent;
the multifunctional lower limb training device further comprises an angle adjusting mechanism for adjusting the rotation angle of the overturning plate relative to the supporting frame, and the angle adjusting mechanism comprises:
The fixed plate is fixed on one side of the support frame, which is close to the bed tail, and extends along the horizontal direction perpendicular to the rotation axis of the turnover plate, and a chute is arranged on the fixed plate and extends along the extending direction of the fixed plate;
the adjusting screw passes through the sliding groove and can slide along the extending direction of the sliding groove;
the turnover connecting rod is characterized in that one end of the turnover connecting rod is in threaded connection with the adjusting screw, the other end of the turnover connecting rod is hinged with the turnover plate, and the fixing or moving of the turnover connecting rod relative to the fixed plate can be realized by screwing the adjusting screw;
the position of the turnover plate corresponding to the thigh fixing structure and the position of the first mounting plate of the shank fixing structure are respectively provided with a first mounting groove and a second mounting groove, and the two first mounting plates are respectively mounted in the first mounting groove and the second mounting groove.
2. The multifunctional lower limb training device according to claim 1, wherein a first arc-shaped groove and a second arc-shaped groove are respectively arranged on the turnover plate at preset tracks corresponding to the thigh fixing structure and the shank fixing structure, connecting rods are respectively arranged on the second sliding blocks of the thigh training driving mechanism and the shank training driving mechanism, the two connecting rods respectively penetrate through the corresponding first arc-shaped groove and the corresponding second arc-shaped groove, and the thigh fixing structure and the shank fixing structure are respectively connected to the corresponding connecting rods.
3. The multifunctional lower limb training device according to claim 1, wherein a photoelectric sensor is arranged at one end of the first mounting plate, a baffle is arranged on the first sliding block and can move between a transmitting end and a receiving end of the photoelectric sensor, and a limit switch is arranged at one end, close to the first mounting plate, of the second mounting plate.
4. The multifunctional lower limb training device according to claim 1, wherein one side of the support frame connected with the turnover plate is suspended, an avoidance space is formed between the suspended part and the bed body, and when a trainer lies on the side, one leg of the training is placed on the turnover plate, and the other leg is placed in the avoidance space.
5. The multifunctional lower limb training device according to claim 1, wherein concave avoidance arc surfaces are arranged at one ends of the support frame and the turnover plate, which are close to the bed head, and at one side of the support frame, which is connected with the turnover plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110966614.5A CN113476277B (en) | 2021-08-23 | 2021-08-23 | Multifunctional lower limb training device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110966614.5A CN113476277B (en) | 2021-08-23 | 2021-08-23 | Multifunctional lower limb training device |
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| CN113476277A CN113476277A (en) | 2021-10-08 |
| CN113476277B true CN113476277B (en) | 2025-01-24 |
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| CN107928993A (en) * | 2016-10-13 | 2018-04-20 | 上海理工大学 | Shank drives training institution |
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| CN201082234Y (en) * | 2007-10-26 | 2008-07-09 | 四川大学 | Hip joint rehabilitation sport machine |
| US20090227911A1 (en) * | 2008-03-06 | 2009-09-10 | Srivastava Varad N | Biometric and low restraint continuous passive motion rehabilitation device |
| CN105943312B (en) * | 2016-06-15 | 2018-08-31 | 华中科技大学 | Hip joint rehabilitation auxiliary device based on sensing and driving integration |
| CN206577082U (en) * | 2016-12-15 | 2017-10-24 | 苏州大学 | Multifunctional horizontal and lateral position obstetric table |
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| CN107736981A (en) * | 2017-09-12 | 2018-02-27 | 湖北阳超机电科技有限公司 | A kind of lower limb exerciser |
| CN110478850B (en) * | 2019-09-08 | 2021-06-08 | 李治兴 | Bedside knee joint mobility training device |
| CN212662588U (en) * | 2020-07-06 | 2021-03-09 | 南京市第一医院 | Horizontal lower limb rehabilitation device for coronary heart disease |
| CN213373198U (en) * | 2020-07-21 | 2021-06-08 | 长江大学 | Lower limb comprehensive trainer for rehabilitation and nursing of obstetrics and gynecology department |
| CN113018046A (en) * | 2021-03-03 | 2021-06-25 | 常州市第二人民医院 | Lower limb lifting device for varicose veins |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107928993A (en) * | 2016-10-13 | 2018-04-20 | 上海理工大学 | Shank drives training institution |
| CN211676114U (en) * | 2019-11-26 | 2020-10-16 | 宁波市康复医院 | Hip, knee and ankle training platform |
| CN215274317U (en) * | 2021-06-30 | 2021-12-24 | 中山大学附属第三医院（中山大学肝脏病医院） | Multi-functional lower limb trainer |
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