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CN-122005270-A - Adjustable passive flexion and extension device for rehabilitation training of lower limbs in old age

CN122005270ACN 122005270 ACN122005270 ACN 122005270ACN-122005270-A

Abstract

The invention provides an adjustable passive bending and stretching device for rehabilitation training of lower limbs in old age, which relates to the technical field of lower limb rehabilitation and comprises a support frame, a leg fixing mechanism, a bending and stretching driving mechanism, an angle adjusting mechanism, a resistance control mechanism and an intelligent control module; the intelligent rehabilitation training device is strong in adaptability, the angle adjusting mechanism is arranged, the angle range of lower limb flexion and extension can be flexibly adjusted according to the height and leg length of a patient and the rehabilitation requirement, the intelligent rehabilitation training device is suitable for old patients of different sizes, the whole-stage rehabilitation training requirement from the initial stage to the recovery stage is met, the training modes are various, the integrated resistance control mechanism and the intelligent control module can realize multiple training modes with constant speed, equal tension and equal length, the training strength requirement of different rehabilitation stages is met by adjusting damping resistance and movement frequency, and the muscle strength and joint flexibility are effectively improved.

Inventors

  • SUN MIN
  • DING ZUOLING

Assignees

  • 南通大学附属医院

Dates

Publication Date
20260512
Application Date
20260409

Claims (9)

  1. 1. The adjustable passive bending and stretching device for the rehabilitation training of the lower limbs of the old is characterized by comprising a support frame (1), a leg fixing mechanism (2), a bending and stretching driving mechanism (3), an angle adjusting mechanism (4), a resistance control mechanism (5) and an intelligent control module (6); The left side of the upper end of the support frame (1) is fixedly connected with a leg fixing mechanism (2); a bending and stretching driving mechanism (3) is arranged in the middle of the supporting frame (1); An angle adjusting mechanism (4) is arranged below the leg fixing mechanism (2); a resistance control mechanism (5) is arranged in the leg fixing mechanism (2); the rear end of the supporting frame (1) is fixedly connected with an intelligent control module (6); The intelligent control module (6) is electrically connected with the bending and stretching driving mechanism (3), the angle adjusting mechanism (4) and the resistance control mechanism (5).
  2. 2. The passive flexion and extension device for rehabilitation training of the lower limbs of the old age according to claim 1, wherein the support frame (1) comprises a base (7), a column (8), a beam (9), a handrail frame (10), pedals (11) and universal wheels (12); The four corners of the upper end of the base (7) are fixedly connected with upright posts (8); the top end of the upright post (8) is fixedly connected with a cross beam (9); two sides of the front end of the cross beam (9) are fixedly connected with handrail frames (10); the front end of the base (7) is fixedly connected with a pedal (11); universal wheels (12) are fixedly connected to four corners of the lower end of the base (7).
  3. 3. The passive flexion and extension device for rehabilitation training of the lower limbs of the old age according to claim 1, wherein the leg fixing mechanism (2) comprises a thigh fixing sleeve (13), a shank fixing sleeve (14), a binding belt (15), a magic tape (16), a hinging seat (17) and a connecting shaft (18); The right end of the thigh fixing sleeve (13) is movably connected with the left end of the shank fixing sleeve (14) through a connecting shaft (18); the upper ends of the thigh fixing sleeve (13) and the shank fixing sleeve (14) are respectively provided with a binding belt (15); One end of the binding belt (15) is fixedly connected with a magic tape (16); the left end of the thigh fixing sleeve (13) is fixedly connected with a hinging seat (17).
  4. 4. The passive flexion and extension device for rehabilitation training of the lower limb of the old age according to claim 1, wherein the flexion and extension driving mechanism (3) comprises a driving motor (19), a speed reducer (20), a crank (21), a connecting rod (22) and a sliding block (23); a driving motor (19) is fixedly connected inside the supporting frame (1); the output end of the driving motor (19) is fixedly connected with a speed reducer (20); the output end of the speed reducer (20) is fixedly connected with a crank (21); The other end of the crank (21) is movably connected with a connecting rod (22) through a pin shaft; the other end of the connecting rod (22) is movably connected with the sliding block (23) through a pin shaft; The sliding block (23) is connected with the lower end of the shank fixing sleeve (14) in a sliding way.
  5. 5. The passive flexion and extension device for rehabilitation training of the lower limbs of the old age according to claim 1, wherein the angle adjusting mechanism (4) comprises an adjusting screw (24), an adjusting handle (25), a movable seat (26) and a supporting connecting rod (27); An adjusting screw (24) is connected with the right end of the supporting frame (1) in a threaded manner; The right end of the adjusting screw rod (24) is fixedly connected with an adjusting handle (25); the left end of the adjusting screw (24) is movably connected with the movable seat (26) through a bearing; The upper end of the movable seat (26) is movably connected with one end of a supporting connecting rod (27) through a pin shaft; The other end of the supporting connecting rod (27) is movably connected with the lower end of the shank fixing sleeve (14) through a pin shaft.
  6. 6. The passive flexion and extension device for rehabilitation training of the lower limb of the old age according to claim 1, wherein the resistance control mechanism (5) comprises a hydraulic damper (28), an adjusting knob (29), a piston (30) and a piston rod (31); A hydraulic damper (28) is fixedly connected inside the thigh fixing sleeve (13); an adjusting knob (29) is arranged at the right end of the hydraulic damper (28); a piston (30) is arranged in the hydraulic damper (28); the right end of the piston (30) is fixedly connected with a piston rod (31); the right end of the piston rod (31) is fixedly connected with the left end of the shank fixing sleeve (14).
  7. 7. The passive flexion and extension device for rehabilitation training of the lower limbs of the old age according to claim 1, wherein the intelligent control module (6) comprises a control box (32), a singlechip (33), a key panel (34), a display screen (35), a motor driving unit (36) and a power module (37); the rear end of the supporting frame (1) is fixedly connected with a control box (32); A singlechip (33) is fixedly connected inside the control box (32); The front end of the control box (32) is provided with a key panel (34) and a display screen (35); the output end of the singlechip (33) is electrically connected with a motor driving unit (36); the control box (32) is internally fixedly connected with a power module (37).
  8. 8. The passive flexion and extension device for rehabilitation training of the lower limb of the old age according to claim 7, wherein the singlechip (33) is internally provided with a rehabilitation training program, and parameters of flexion and extension angles, movement frequency and training duration can be preset; the display screen (35) can display training angle, exercise times and remaining time data in real time.
  9. 9. The passive flexion and extension device for rehabilitation training of the lower limbs of the old age according to claim 3, wherein the inner walls of the thigh fixing sleeve (13) and the shank fixing sleeve (14) are respectively provided with a sponge cushion layer (38).

Description

Adjustable passive flexion and extension device for rehabilitation training of lower limbs in old age Technical Field The invention relates to the technical field of lower limb rehabilitation, in particular to an adjustable passive flexion and extension device for rehabilitation training of lower limbs in old age. Background With the increase of aging population, the number of patients with lower limb dysfunction in the old years is increased year by year, and the lower limb rehabilitation training is an important means for helping the old to recover walking ability and improve life quality. The passive flexion and extension training is used as a basic training mode of lower limb rehabilitation, and can effectively improve the joint activity, strengthen the muscle strength and prevent muscle atrophy and joint stiffness. The lower limb rehabilitation training device on the market has the defects that firstly, most devices are fixed in structure, training angles and ranges cannot be adjusted according to the height, leg length and rehabilitation stage of a patient, adaptability is poor, personalized requirements of different elderly patients are difficult to meet, secondly, the traditional passive training device is fixed in a single driving mode, resistance and movement frequency cannot be flexibly adjusted according to the rehabilitation progress of the patient, training effect is limited, part of devices lack of intelligent control function, training data cannot be monitored in real time, medical staff cannot accurately master the rehabilitation progress of the patient, training schemes cannot be timely adjusted, and furthermore, the comfort of the traditional device is poor, leg fixing structure design is unreasonable, skin pressure sores are easy to cause after long-time wearing, and training compliance of the patient is affected. Aiming at the characteristics of weak body functions and long rehabilitation period of the elderly patients, the development of an adjustable, intelligent and high-comfort lower limb passive flexion and extension training device is needed to improve the scientificity and effectiveness of rehabilitation training and help the elderly patients to recover the lower limb functions faster. Disclosure of Invention The invention aims to provide an adjustable passive flexion and extension device for rehabilitation training of lower limbs in old age, which solves the problems. The invention provides a technical scheme that an adjustable passive bending and stretching device for rehabilitation training of lower limbs in old age comprises a support frame, a leg fixing mechanism, a bending and stretching driving mechanism, an angle adjusting mechanism, a resistance control mechanism and an intelligent control module, wherein the left side of the upper end of the support frame is fixedly connected with the leg fixing mechanism, the middle part of the support frame is provided with the bending and stretching driving mechanism, the right end of the support frame is provided with the angle adjusting mechanism, the resistance control mechanism is arranged in the leg fixing mechanism, the rear end of the support frame is fixedly connected with the intelligent control module, and the intelligent control module is electrically connected with the bending and stretching driving mechanism, the angle adjusting mechanism and the resistance control mechanism. Preferably, the support frame comprises a base, upright posts, cross beams, handrail frames, foot pedals and universal wheels, wherein the upright posts are fixedly connected to four corners of the upper end of the base, the cross beams are fixedly connected to the top ends of the upright posts, the handrail frames are fixedly connected to two sides of the front end of the cross beams, the foot pedals are fixedly connected to the front end of the base, and the universal wheels are fixedly connected to four corners of the lower end of the base. The leg fixing mechanism comprises a thigh fixing sleeve, a shank fixing sleeve, a binding belt, a magic tape, a hinging seat and a connecting shaft, wherein the right end of the thigh fixing sleeve is movably connected with the left end of the shank fixing sleeve through the connecting shaft, the binding belt is arranged at the upper ends of the thigh fixing sleeve and the shank fixing sleeve, one end of the binding belt is fixedly connected with the magic tape, and the hinging seat is fixedly connected with the left end of the thigh fixing sleeve. The bending and stretching driving mechanism comprises a driving motor, a speed reducer, a crank, a connecting rod and a sliding block, wherein the driving motor is fixedly connected inside the supporting frame, the speed reducer is fixedly connected to the output end of the driving motor, the crank is fixedly connected to the output end of the speed reducer, the connecting rod is movably connected to the other end of the crank through a pin shaft, the other end of