RU213561U1 - Biofeedback device for restoring cyclic movements of the upper limbs in patients with consequences of unilateral birth brachial plexus paresis - Google Patents

Abstract

The utility model relates to medicine, namely orthopedics and rehabilitation, and can be used as a biofeedback device for restoring cyclic movements of the upper limbs in patients with the consequences of unilateral birth paresis of the brachial plexus. A biofeedback device for restoring cyclic movements of the upper limbs in patients with the consequences of unilateral birth paresis of the brachial plexus, containing a mechanical treadmill (2) with a supporting structure (1) fixed at the base of the mechanical treadmill, a rod (7) fixed on the supporting structure rod clamp (6), a motion sensor (4) equipped with a fixing clip for the rod (6), and a video signal source (3) located on the supporting structure (1), while the rod (7) is fixed on the supporting structure with a clamp (6), and the motion sensor (4) is mounted on a rod (7) fixed to the supporting structure (1) using a clamp (6) in such a way that, while walking along the moving mechanical track (2), the fingers of the injured upper limb of the patient ( 9) in the extreme forward upper position in the motion cycle pass at a distance with the motion sensor (4) within its range, and the source is The eo-signal (3) is designed to turn on and off the video signal when the fingers of the damaged upper limb (9) pass at a distance with the motion sensor (4) within its range. The cyclic movements of the upper limbs, which are accompanied by turning on and off the video signal, are repeated when walking on a treadmill, thereby forming a biological feedback between the cyclic movements of the lower and upper limbs, which leads to a positive effect in the form of restoring the skill of cyclic movements of the upper limbs when walking.

Description

The utility model relates to medicine, namely orthopedics and rehabilitation, and can be used as a biofeedback device for restoring cyclic movements of the upper limbs in patients with the consequences of unilateral birth paresis of the brachial plexus.

Terms and definitions used in the text

Biofeedback is a procedure that allows, with a minimum time delay, to inform a person about the state of his body functions, due to which there is the possibility of their conscious regulation. Most biofeedback occurs through normal sensory channels (Barber T.X. et al. Biofeedback & Self - Control 1975/76. An Aldine Annual on the Regulation of Bodily Processing and C onsciousness. Chicago: Aldine Publishing Company, 1976, 581 p.)

Human walking is an automated cyclic locomotion, with the main functional unit of walking - the step cycle, which is the time from the beginning of contact with the support of a given leg to the next contact with the same leg (Skvortsov D.V. Diagnosis of motor pathology by instrumental methods: gait analysis, stabilometry - Scientific - medical firm MBN, 2007).

The movements of the upper limbs when walking are cyclical. The beginning of the cycle corresponds to the extreme rear upper position of the hand, the middle corresponds to the extreme front upper position of the brush, the end of the cycle corresponds to the return of the brush to the extreme rear upper position. The cycle of transfer of the upper limb coincides in time with the step cycle of the ipsilateral lower limb (Vorontsova O.I. et al. The cycle of movement of the upper limbs during normal human walking // Medical Bulletin of Bashkortostan. - 2016. - V. 11. - No. 6.- S. 66).

With the consequences of unilateral birth paresis of the brachial plexus and the restored amplitude of active movements in the elbow and shoulder joints, the affected upper limb in some patients does not participate in cyclic movements when walking, which leads to impaired coordination and periodic falls (Anguelova G. V. et al. Impaired automatic arm movements in obstetric brachial plexus palsy suggest a central disorder // Journal of child neurology. - 2016. - V. 31. - No. 8. - C. 1005-1009).

A device is known - a simulator, including a treadmill, on both sides of which handrails are fixed, characterized in that the treadmill is a rotating running tape, and the handrails are removable and fixed with the possibility of adjusting their level relative to the track. 2. The simulator according to claim 1, characterized in that the handrails can be located at a height of 0.5 to 0.7 m (patent No. RU 49433 U1, published 2005.11.27).

The disadvantage of this device is:

the inability to form a pattern of friendly movements of the upper and lower extremities;

lack of biofeedback.

The closest, according to the mechanism of action, the device, taken as a prototype, during training on which friendly movements of the upper and lower extremities are carried out, is a biokinetic ellipsoid for the development and strengthening of the spinal column and the entire musculoskeletal system in the complex and its variants, containing:

supporting structure,

ellipsoidal mechanism mounted on a supporting structure,

foot platforms mounted on the main connecting rods of the ellipsoidal mechanism that ensures the movement of the foot platforms along an elliptical trajectory,

arm supports mounted on arm oscillators mounted on front support legs and providing arm oscillating movements,

the hand supports hang below the swing axis, the hand supports are spaced horizontally from the foot platforms and are above the foot platforms,

a kinematic transmission that connects the ellipsoidal mechanism and the swinging devices for the arms and ensures the movement of the foot platforms and hand supports in opposite directions (patent No. RU 2706598 C1, published 2019.11.19).

The disadvantages of the prototype are that:

the correct pattern of movement of the upper limb when walking is not formed - when training on a known simulator, the trainee performs swinging movements of the upper limb, in which the upper limb bends and unbends in the shoulder joint, however, the pattern of movement of the upper limb when walking should also include flexion and extension in the elbow joint,

there is no biofeedback, which allows to fix the pattern and the skill of cyclic movements of the upper limbs when walking.

The task to be solved by the utility model is the creation of a device for the formation of the skill of cyclic movements of the upper limbs when walking in patients with unilateral birth paresis of the brachial plexus with the presence of active movements in the elbow and shoulder joints.

To solve this problem, a device with biofeedback for restoring cyclic movements of the upper limbs when walking is proposed, containing a mechanical treadmill with a supporting structure fixed at the base of the mechanical treadmill, a rod fixed on the supporting structure with a rod clamp, a motion sensor equipped with a fixing clip for the rod and a video signal source located on the supporting structure, while the rod is fixed on the supporting structure with a clamp, and the motion sensor is installed on the rod fixed to the supporting structure with a clamp in such a way that during walking along the moving mechanical path, the fingers of the hand of the injured upper limb the patient in the extreme anterior upper position in the motion cycle pass at a distance with a motion sensor within its range, and the video signal source is designed to turn the video signal on and off when the fingers of the hand pass injured upper limb at a distance with a motion sensor within its range

The technical result of the utility model is the presence of biofeedback. During walking on a moving mechanical track at the beginning of the step cycle - contact with the mechanical treadmill with the support of the foot, contralateral to the injured upper limb, - the fingers of the injured upper limb, which are in the extreme anterior upper position, are carried out at a distance of range with the motion sensor - turns on video signal, at the beginning of the next cycle of movement of the injured upper limb (including sequential flexion in the shoulder and elbow joints, then extension in the elbow and shoulder joints), the fingers of the injured hand, which are again in the extremely anterior upper position, are carried out at a distance of range with the sensor movement to turn off the video signal. The repetition of the above-described cyclic movements of the upper and lower limbs, which are accompanied by turning on and off the video signal, form biological feedback, the essence of which is to monitor and fix the necessary extreme position of the fingers of the damaged upper limb when walking and "reinforce" with the help of a video signal. Thus, afferent information about the position of the injured upper limb when walking goes through an additional channel that forms a "loop" of feedback aimed at developing the skill of cyclic movements of the upper limbs when walking in patients with unilateral birth paresis of the brachial plexus with active movements in the elbow and shoulder joints. .

In FIG. 1 shows a general diagram of the device (a) and a schematic representation of the application of the device (b).

Pos.1 - supporting structure. Pos. 2 - mechanical treadmill. Pos. 3 - video signal source. Pos. 4 - motion sensor. Pos. 5 - upper limb contralateral damaged. Pos. 6 - fixing clip for the rod. Pos. 7 - rod. Pos. 8 - foot, contralateral to the injured upper limb. Pos. 9 - fingers of the injured upper limb.

The inventive biofeedback device for restoring cyclic movements of the upper limbs when walking in patients with the consequences of unilateral birth paresis of the brachial plexus, containing a mechanical treadmill with a supporting structure fixed at the base of the mechanical treadmill, a rod fixed on the supporting structure with a clamp for the rod, a motion sensor , equipped with a fixing clip for the rod and a video signal source located on the supporting structure, while the rod is fixed on the supporting structure with the help of a clip, and the motion sensor is installed on the rod fixed to the supporting structure with the help of a clip in such a way that during walking along the moving mechanical track the fingers of the injured upper limb of the patient in the extreme anterior upper position in the motion cycle pass at a distance with the motion sensor within its range, and the video signal source is designed to be turned on and off The video signal when passing the fingers of the injured upper limb at a distance with a motion sensor within its range is used as follows:

The supporting structure 1 is a p-shaped frame fixed at the base of the mechanical treadmill 2.

The video signal source 3 is located on the supporting structure 1 in the front, top and center.

Motion sensor 4 and video signal source 3 are powered by replaceable compact batteries.

The trainee starts walking on the mechanical treadmill 1 (which sets it in motion), performs cyclic movements of the intact left upper limb 5, the instructor measures the level of the extreme anterior upper position of the fingers of the intact upper limb during its cyclic movement while walking. At the previously determined level of the extreme anterior upper position of the fingers of the hand of the intact upper limb during its cyclic movement when walking, on the side of the injured upper limb, using a clamp for rods 6, the rod 7 is fixed on the supporting structure 1, then using a clamp for rods 6, the sensor movements 4 are installed on a rod 7 fixed to the supporting structure 1.

While walking on a moving mechanical treadmill 1 at the beginning of the walking cycle - contact with the mechanical treadmill of the foot 8, the contralateral injured upper limb, the fingers of the damaged upper limb 9 are carried out at a distance of range with a motion sensor 4 - turn on the video signal 3, at the beginning of the next of the cycle of movement of the injured upper limb (including sequential flexion in the shoulder and elbow joints, then extension in the elbow and shoulder joints), the fingers of the injured upper limb 9 are carried out at a distance of the motion sensor range 4 - turn off the video signal 3.

Then, the cyclic movements of the upper limbs, which are accompanied by turning on and off the video signal, are continuously repeated while walking on the treadmill, thereby forming a biofeedback.

Thus, the problem of the utility model is solved.

Claims (1)

A biofeedback device for restoring cyclic movements of the upper limbs when walking in patients with the consequences of unilateral birth paresis of the brachial plexus, containing a mechanical treadmill with a supporting structure fixed at the base of the mechanical treadmill, a rod fixed on the supporting structure with a clamp for the rod, a motion sensor, equipped with a fixing clip for the rod, and a video signal source located on the supporting structure, while the rod is fixed on the supporting structure with the help of a clamp, and the motion sensor is installed on the rod fixed to the supporting structure with the help of a clip in such a way that during walking on a moving mechanical walkway the fingers of the injured upper limb of the patient in the extreme anterior upper position in the motion cycle pass at a distance with the motion sensor within its range, and the video signal source is designed to turn the video system on and off drove when passing the fingers of the hand of the injured upper limb at a distance with a motion sensor within its range.

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