TWI847659B - Gait Training Device - Google Patents

Abstract

A gait training device includes a base unit and a support frame unit. The base unit includes a slidable base and a vertical rod assembly. The vertical rod assembly has a first pivot point and a second pivot point. The support frame unit is rotatably pivoted on the vertical rod assembly, and the support frame unit includes a movable frame rotatably pivoted on the first pivot point, and a driver pivoted on the second pivot point. The movable frame has a movable rod assembly rotatably pivoted on the first pivot point, and a support seat. The movable rod assembly has a free pivot point, and the driver is pivoted on the second pivot point and the free pivot point. The driver drives the movable frame to pivot relative to the base frame unit, thereby driving the user's upper body to tilt forward and assist in getting up, so that the user can operate the present invention independently.

Description

Gait Training Device

The present invention relates to a physical therapy device, and more particularly to a gait training device.

Patients with spinal cord injury or cerebral palsy often have difficulties with muscle coordination and sensory transmission, resulting in decreased postural stability and poor limb movement control. Therefore, they need to undergo high-repetition training to stimulate the nerves and muscles in the legs, improve core stability, and practice dynamic center of gravity transfer to restore the patient's natural walking ability.

Referring to FIG. 1 , the suspension walker for rehabilitation disclosed in the Republic of China's new patent publication No. 485817U comprises a base 11, a pulley assembly 12 installed below the base 11, a main frame rod 13 extending upward from the base 11, a suspension frame 14 installed at the top of the main frame rod 13, and a soft sling assembly 15 suspended from the suspension frame 14. The soft sling assembly 15 is wrapped and fastened to the upper body of the patient to assist the patient in standing, so that walking training can be performed.

However, the rehabilitation suspension walker requires the assistance of others so that the patient can stand up and lean on the suspension frame 14, and the patient cannot operate the walker by himself, so there is still room for improvement.

Therefore, the object of the present invention is to provide a gait training device that can assist in getting up.

Therefore, the gait training device of the present invention comprises a base unit and a support unit. The base unit comprises a slidable base and a vertical rod assembly extending from the base in a vertical direction. The base defines a stride space around. The vertical rod assembly has a bottom end disposed on the base and a top end opposite to the bottom end in the vertical direction. The top end has a first pivot point and a second pivot point adjacent to the first pivot point. The support frame unit is rotatably pivoted on the stand rod assembly, and is used to support a human body and includes a movable frame rotatably pivoted on the first pivot point, and a driver pivoted on the second pivot point and used to drive the movable frame to pivot relative to the base frame unit. The movable frame has a movable rod assembly rotatably pivoted on the first pivot point, and a support stand arranged on the movable rod assembly and located above the stride space. The movable rod assembly has a free pivot point, and the driver is pivoted on the second pivot point and the free pivot point.

The effect of the present invention is that the driver is pivoted at the second pivot point of the vertical rod assembly and the free pivot point of the movable rod assembly. When the driver drives the movable frame to pivot relative to the bottom frame unit, the movable rod assembly can generate a larger deflection angle, thereby driving the user's upper body to tilt forward and assist in standing up. Therefore, the user can stand up by himself without the help of others and can independently operate the present invention.

2 to 4 , an embodiment of the gait training device of the present invention comprises a base frame unit 2, a support frame unit 3 and a power supply element 4.

The base frame unit 2 includes a slidable base 21, a vertical bar set 22 extending upward from the base 21 along a vertical direction Z, and a leg stop 23 installed in the middle of the vertical bar set 22. The base 21 defines a stride space 210. The base 21 of this embodiment has a horizontal tube 211 extending along a left-right direction X perpendicular to the vertical direction Z, two long tubes 212 respectively arranged at two opposite ends of the horizontal tube 211 and extending along a front-rear direction Y perpendicular to the vertical direction Z and the left-right direction X, and a plurality of wheel sets 213 rotatably arranged on the long tubes 212. The rotation of the wheel sets 213 can drive the base 21 to slide along the ground.

2, 3 and 5, the vertical rod assembly 22 has a fixed rod 221 extending upward from the base 21, a mounting seat 222 fixed to the fixed rod 221, and two outer covers 220 respectively covering the left and right sides of the mounting seat 222. The fixed rod 221 has a bottom end 223 fixed to the cross tube 211. The mounting seat 222 is fixed to the top end of the fixed rod 221, and is formed with a first pivot point 224 and a second pivot point 225 adjacent to the first pivot point 224. In this embodiment, the second pivot point 225 is located behind the first pivot point 224. The mounting seat 222 of this embodiment is composed of two mounting pieces 226 spaced apart in the left-right direction X, and each mounting piece 226 is Y-shaped.

The leg stop 23 is located above the stride space 210 and is used for a user's legs to rest against. The leg stop 23 can be extended or shortened forward and backward to adjust the extension distance using the telescopic tube principle.

The support frame unit 3 is used to support the human body and is rotatably pivoted on the stand assembly 22. The support frame unit 3 includes a movable frame 301 rotatably pivoted on the first pivot point 224, a saddle 302 suspended from the movable frame 301 and used to support the human pelvis, and a driver 303 pivoted on the second pivot point 225 and used to drive the movable frame 301 to rotate relative to the base frame unit 2.

The movable frame 301 has a movable rod assembly 31 rotatably pivoted at the first pivot point 224, and a support base 32 disposed on the top side of the movable rod assembly 31 and located above the stride space 210. The movable rod assembly 31 has a movable rod 311 pivoted at the first pivot point 224 and extending along the up-down direction Z, a fixed base 312 fixed to the movable rod 311 and extending along the front-back direction Y, and two covers 33 respectively covering the left and right sides of the fixed base 312.

Referring to Fig. 3, Fig. 5 and Fig. 6, the movable rod 311 has an outer tube 313, an inner tube 314 that can be extended relative to the outer tube 313, an extension seat 319 disposed on the top side of the inner tube 314, a sleeve 315 disposed at the bottom end of the outer tube 313 and for the mounting plates 226 to be clamped, and a fastener 316 that passes through the outer tube 313 and is used to fix the inner tube 314. The inner tube 314 is formed with a plurality of recesses 310 for the fastener 316 to abut against. By extending or shortening the inner tube 314 relative to the outer tube 313 and fixing one of the recesses 310 of the inner tube 314 with the fastener 316, the height of the support seat 32 can be adjusted to accommodate users of different heights. The fixing seat 312 has a fixing end 317 located at the front side and fixed to the outer tube 313 , and a free pivot 318 opposite to the fixing end 317 . The free pivot 318 is spaced apart from the movable rod 311 .

Referring to Figs. 3, 4 and 6, the support stand 32 is disposed on the extension stand 319 and changes its height in the vertical direction Z as the inner tube 314 is extended or shortened. The support stand 32 defines a living space 30 for accommodating the upper body of a human body. The support stand 32 has a connecting rod 321 extending along the left-right direction X and fixed to the extension stand 319, two supporting rod assemblies 322 respectively disposed at the left and right ends of the connecting rod 321 and used to support the human body, and a safety belt 324 that can be buckled and installed between the supporting rod assemblies 322. The connecting rod 321 can be extended or shortened in the left-right direction X to adjust the size of the living space 30.

Each of the support rods 322 has a rod body 323 extending along the front-rear direction Y for the user's armpit to lean against, a buffer 325 covering the rod body 323, a handrail tube 326 extending forward and then upward from the rod body 323 for the user to hold with both hands, and a plurality of rings 327 disposed on the rod bodies 323. The buffer 325 of this embodiment is foam, which can reduce the pressure of the user's armpit against the rod body 323, and is more comfortable to use.

2, 5 and 7, the saddle 302 is detachably suspended on the rings 327 of the support rod assembly 322 through a plurality of slings 34. The saddle 302 is made of a soft material (such as cloth) and can be placed around the user's waist and support the user's pelvis.

The actuator 303 is pivoted at the second pivot point 225 of the vertical rod assembly 22 and the free pivot point 318 of the movable rod assembly 31. The actuator 303 has a driving body 35 pivoted at the second pivot point 225, and a telescopic rod 36 telescopically arranged on the driving body 35 and one end of which is pivoted at the free pivot point 318. The actuator 303 of this embodiment is an electric cylinder. The power supply element 4 is mounted on the vertical rod assembly 22 and can supply power to the actuator 303 to extend or shorten the telescopic rod 36. As shown in FIG. 5 , when the support frame unit 3 is pivoted relative to the base frame unit 2 to a use state, the movable rod assembly 31 and the vertical rod assembly 22 are located on the same straight line.

A base line BL passing through the free pivot point 318 and the second pivot point 225 is defined to form an angle A with respect to a center line CL passing through the movable rod assembly 31. The angle A is between 3 and 15 degrees.

5 and 8 , when the telescopic rod 36 is shortened, the movable rod assembly 31 is driven to pivot counterclockwise about the first pivot point 224, and the movable rod assembly 31 is linked to the support base 32 to pivot relative to the vertical rod assembly 22. At the same time, the driver 303 is also pivoted counterclockwise about the second pivot point 225, so that the support frame unit 3 can be rotated relative to the base frame unit 2 from the use state (as shown in the left side of FIG. 8 ) to the standing state (as shown in the right side of FIG. 8 ).

Referring to FIG. 9 and FIG. 10 , when the support frame unit 3 rotates relative to the base frame unit 2 to the standing state (as shown in FIG. 9 ), the support seat 32 tilts downward, and the user's arms can just rest against the support rods 322 to support the weight of the upper body, and the user's hands hold the handrails 326 as a force point. Then, the driver 303 drives the support frame unit 3 to rotate from the standing state back to the use state, and the user's two calves can press against the leg stop 23 as support, thereby assisting the user to stand up and start practicing walking.

Since the actuator 303 of the present invention is pivoted between the second pivot point 225 of the vertical rod assembly 22 and the free pivot point 318 of the movable rod assembly 31, the movable rod assembly 31 can generate a larger deflection angle. In addition to generating an upward force Fz in the vertical direction Z, it can also generate a larger forward force Fy in the front-back direction Y. The forward force Fy can drive the user's upper body to tilt forward to assist in standing up, so that the user can stand up by himself without the help of others, which is more convenient to use. In addition, during the practice process, the safety belt 324 (see FIG. 4) can be buckled to prevent the user from leaning back, so it is safer to use.

In summary, the gait training device of the present invention pivots the driver 303 between the second pivot point 225 of the standing rod assembly 22 and the free pivot point 318 of the movable rod assembly 31, so that the movable rod assembly 31 generates a larger deflection angle, thereby generating a larger forward component force Fy, which can drive the user's upper body to tilt forward to assist in getting up. Therefore, the user can operate the present invention by himself, and the purpose of the present invention can be achieved.

However, the above is only an embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the present patent.

2: Base unit 21: Base 210: Stride space 211: Cross tube 212: Long tube 213: Wheel set 22: Upright pole set 220: Outer cover 221: Fixed pole 222: Mounting seat 223: Bottom 224: First pivot point 225: Second pivot point 226: Mounting plate 23: Leg stop 3: Support frame unit 30: Living space 301: Mobile frame 302: Saddle 303: Drive 31: Mobile pole set 310: Recess 311: Mobile pole 312: Fixed seat 313: Outer tube 314: Inner tube 316: Fastener 315: Bushing 317: Fixed end 318: Free pivot 319: Extension seat 32: Support seat 321: Connecting rod 322: Support rod assembly 323: Rod body 324: Safety belt 325: Buffer 326: Handrail tube 327: Ring 33: Cover 34: Suspension belt 35: Drive body 36: Telescopic rod 4: Power supply element Z: Up and down direction X: Left and right direction Y: Forward and backward direction BL: Baseline CL: Centerline A: Angle Fz: Upward component Fy: Forward component

Other features and effects of the present invention will be clearly presented in the implementation method with reference to the drawings, in which: FIG. 1 is a three-dimensional schematic diagram illustrating the suspended walker for rehabilitation disclosed in the Republic of China New Patent Publication No. 485817U; FIG. 2 is a three-dimensional exploded view of an embodiment of the gait training device of the present invention; FIG. 3 is a front view of the embodiment with a saddle omitted; FIG. 4 is a top view of the embodiment; FIG. 5 is a right side view illustrating a support frame unit of the embodiment relative to a base frame unit in a use state; FIG. 6 is a view similar to FIG. 5, illustrating an extended movable rod group of the support frame unit; FIG. 7 is a partial enlarged view of FIG. 5; FIG8 is a continuous motion diagram of the support frame unit rotating from the use state to the standing state relative to the base frame unit; FIG9 is a view similar to FIG5 , illustrating the support frame unit in the standing state relative to the base frame unit; and FIG10 is a use schematic diagram, illustrating a user operating this embodiment.

2: Chassis unit

21: Base

210: Stride Space

213: Wheelset

22: Pole set

220: Outer cover

222: Mounting seat

226: Mounting plate

23: Leg guard

3: Support frame unit

301: Movable rack

302: Saddle

303:Driver

31: Movable rod set

312: Fixed seat

32: Stand

321: Connecting rod

324: Seat belt

326: Handrail tube

33: Covering

34: Suspenders

4: Power supply components

Z: Up and down direction

X: left and right direction

Y: front and back direction

Claims (10)

A gait training device, comprising: A base frame unit, including a slidable base, and a vertical bar group extending from the base in a vertical direction, the base surrounding and defining a stride space, the vertical bar group having a bottom end disposed on the base, and a top end opposite to the bottom end in the vertical direction, the top end having a first pivot point, and a second pivot point adjacent to the first pivot point; and A support frame unit is rotatably pivoted on the stand rod assembly. The support frame unit is used to support the human body and includes a movable frame rotatably pivoted on the first pivot point, and a driver pivoted on the second pivot point and used to drive the movable frame to pivot relative to the base frame unit. The movable frame has a movable rod assembly rotatably pivoted on the first pivot point, and a support stand arranged on the movable rod assembly and located above the stride space. The movable rod assembly has a free pivot point, and the driver is pivoted on the second pivot point and the free pivot point. A gait training device as described in claim 1, wherein the stand assembly has a fixed rod extending upward from the base, and a mounting base fixed to the fixed rod, the bottom end is formed on the fixed rod, and the first pivot and the second pivot are formed on the mounting base. A gait training device as described in claim 2, wherein the mounting base is composed of two mounting plates spaced apart in a left-right direction perpendicular to the up-down direction, and each of the mounting plates is Y-shaped. A gait training device as described in claim 2, wherein the movable rod assembly has a movable rod pivoted at the first pivot point and extending along the up-down direction, and a fixed base fixed to the movable rod and extending along a front-back direction perpendicular to the up-down direction, and the fixed base is formed with the free pivot point. A gait training device as described in claim 4, wherein a baseline defined through the free pivot and the second pivot forms an angle with a center line through the movable rod assembly, and the angle is between 3 and 15 degrees. A gait training device as described in claim 1, wherein the movable rod assembly has an outer tube and an inner tube that can be extended and retracted relative to the outer tube, and the support seat changes its position in the up-down direction as the inner tube is extended or shortened. A gait training device as described in claim 1, wherein the support seat has a connecting rod extending along a left-right direction perpendicular to the up-down direction and fixed to the movable rod group, and two supporting rod groups respectively arranged at the left and right ends of the connecting rod and used to support the human body, each of the supporting rod groups has a rod body extending along a front-rear direction perpendicular to the up-down direction and the left-right direction, and a handrail tube extending from the rod body. A gait training device as described in claim 7, wherein each of the support rod sets also has a buffer member wrapped around the outside of the rod body. A gait training device as described in claim 7, wherein the support seat also has a safety belt that can be snap-fittedly installed between the support rod assemblies. A gait training device as described in claim 1, wherein the support seat has a connecting rod extending along a left-right direction perpendicular to the up-down direction and fixed to the movable rod group, and two supporting rod groups respectively arranged at the left and right ends of the connecting rod and used to support the human body, and the support frame unit also includes a saddle suspended from the supporting rod groups and used to support the human body.

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