RU35071U1 - Limb rehabilitation device - Google Patents

Abstract

1. Device for the rehabilitation of limbs, made on the basis of cable suspensions with locking mechanisms, characterized in that it contains a horizontally extended housing, inside of which are two cables, each extending along the axial line of the housing between the corresponding pulley installed in the middle of the housing, and a locking mechanism mounted on the corresponding end of the housing and containing a pair of eccentric drums between which the cable passes, and a spring-loaded pusher with a handle, while the first ends of VAVO output through holes in the bottom of the hull located beneath the locking mechanisms form a rope holders, which are fixed lodgements for limbs, and the second ends of cables output through holes in the bottom, below the pulleys are used to adjust the length of cable podvesov.2. The device according to claim 1, characterized in that the housing cover is equipped with means for fixing the housing to an external holder.

Description

Rehabilitation device

The utility model relates to medical equipment, namely, devices for stable fixation of limbs in various positions necessary for the development and restoration of their functions in the postoperative period.

Known installation for the rehabilitation of muscular functions 1, designed to restore the functions of the lower limb associated with ensuring the vertical position of the body and the ability to move patients with neurological and orthopedic disorders.

The installation comprises a height-adjustable seat and a footrest located in front of it, which is slidably moved forward and backward by an electric motor with an adjustable speed. The equipment of the installation also includes a special support, allowing the patient to carry out the procedure in a standing position.

A disadvantage of the known device is a highly specialized appointment for the development of a specific muscle group of the lower limb.

There is also known a device for developing mobility of joints of the lower limb 2, which contains a base with a fixed bed for the patient’s body, as well as a frame with an electric drive and a screw mechanism suspended from the base using a hinge and a suspension, the nut of which is connected to interchangeable levers by a hinge and rocker arm, which in turn, by means of a slider through hinges they are connected with movable tool holders for the thigh and lower leg of the limb under development. The use of interchangeable levers, movable tool holders or foot holders allows separate development of large limb joints in all physiologically possible directions.

A device for mechanotherapy of the upper extremities 3 is also known, which provides active-passive development in the full physiological volume of movements of a paralyzed arm by exposing it to the muscles of a healthy arm and trunk.

A61H 1/02

The device comprises a base with two bushings, inside of which rotary forks are placed, interconnected by a tetrahedral pin and hinges and connected with telescopic rods carrying fastening straps and hand expanders.

A common disadvantage of the above analogues is a rather complex kinematic scheme of devices that reduces the operational reliability of devices.

The closest in technical essence analogue, adopted as a prototype of the proposed utility model, is a suspension device for rehabilitation 4.

The prototype device comprises a stirrup with a bed for the lower leg and an emphasis for the ankle joint, suspended on two front and one or two rear cables assembled together on a bundle attached to the hoists, which are mounted on a tripod using the holder (hook). A cable with a locking mechanism is attached to the front of the calf bed, holding the suspension bed (hammock) for the body. During the training, the patient selects the hoist cable with his hands and, rising from the hammock, trains the muscles of the back.

The advantage of the prototype is the simplicity and ease of use of the device.

The disadvantage of the prototype is its limited capabilities due to the fixed length of the cable suspensions, which does not allow you to change the relative position of the limbs, fix them in the required position for unloading or dosed load of certain muscle groups.

The objective of the utility model is to ensure stable fixation of the patient's limbs with the ability to change in a wide range of preset limb positions required for postoperative rehabilitation.

The essence of the utility model lies in the fact that the rehabilitation device, made on the basis of cable suspensions with locking mechanisms, contains a horizontally extended housing, inside of which are two cables, each stretched along the axial line of the housing between the corresponding pulley installed in the middle of the housing, and locking mechanism

mounted on the corresponding end of the casing and containing a pair of eccentric drums between which the cable passes, and a spring-loaded pusher with a handle, while the first ends of the cables, brought out through the holes in the bottom of the casing, located under the locking mechanisms, form cable suspensions on which lodges for limbs are fixed and the second ends of the cables brought out through the holes in the bottom, located under the pulleys, serve to adjust the length of the cable suspensions.

In addition, the housing cover is provided with means for fixing the housing to an external holder.

The essence of the utility model is illustrated by the following drawings:

FIG. 1 - device for rehabilitation, front view,

FIG. 2 - device for rehabilitation, top view

FIG. 3 - pulley, side view,

FIG. 4 - locking mechanism, side view.

The rehabilitation device comprises a horizontal casing (housing) 1 extended horizontally with a cover 2, inside which two cables 3, 4 are placed, each stretched along the axial line of the housing between the corresponding pulley 5 installed in the middle part of the housing and the locking mechanism 6 mounted on the corresponding (left or right) end of the housing.

The first ends of the ropes 3, 4, brought out through the holes 7 in the bottom of the housing, located under the locking mechanisms b, form the cable suspensions 8, 9, on which the lodgements for the limbs are fixed (Fig. 1 not shown), and the second ends 10, 11 of the ropes, withdrawn through holes 12 in the bottom, located under the pulleys 5, are used to adjust the length of the suspensions 8.9.

The pulley 5 is fixed in the housing by means of a pair of L-shaped slats 13 (see Fig. 3), the horizontal sections of which are bolted 14 to the cover 2, and the vertical ones are provided with holes along the pulley axis 15, fixed with a cotter pin 16.

To prevent the cables from slipping from the pulleys to the protrusions on the rear wall of the housing are attached stops 17 made in the form of grooves concentrically enveloping the cables.

The locking mechanism (see Fig. 4) contains a pair of eccentric drums 18 mounted on vertical posts 19 with threaded ends. The upper ends of the uprights 19 are installed in the threaded holes of the cover 2, and the lower ends are fixed with nuts 20 on the lower surface of the base 21, which has an oval shape. A cable 3 (4) is laid across the base 21 in the interval between the gear surfaces 22 of the cam 23 of the eccentric drums, fixed by a spring-loaded pusher 24 with a handle 25 located above the cable 3 (4).

Means 26 are also installed in the housing cover 2 for securing the housing to an external holder, for example, hooks with threaded ends fixed by nuts.

The device operates as follows.

To use the device, the housing is fixed on an external holder, which can be used as a shaped frame rigidly connected to the patient’s bed, or a structure of racks mounted on the floor.

Consider an example of using a device for fixing limbs (legs, arms, or legs and arms) during postoperative rehabilitation for fractures.

Depending on the presence or absence of supporting structures (lodges) for limbs, appropriate devices are fixed on cable suspensions 8.9. As such devices, hooks, staples, clamps, belt loops, etc. can be used.

After laying the limbs on the lodgements and securing the lodgements on the cable suspensions 8, 9, the limbs are raised one by one above the supporting bed of the patient to the required height, choosing the ends 10, 11 of the 3.4 cables. At the same time, the locking mechanism b does not prevent the cable 3 (4) from being pulled, which at the beginning of the movement spreads the teeth of the cams 23 of the eccentric drums 18 to the sides, and then passes through the expanding gap between the cams to the pulley 5. The stopper 17 prevents the cable from falling off the pulley 5.

output drums return to their original position and clamp the cable toothed surfaces, not allowing the suspension 8 (9) to lower. If you need long-term support of the limbs in suspension, the ends 10, 11 of the cables are tied to the supports.

To lower the suspension 8 (9) by pressing the handle 25, the pusher 24 is moved forward, the end of which, acting on the teeth of the cams 23, spreads them apart. The cable is released, freely passes between the smooth walls of the eccentric drums 18, and the suspension 8 (9) is lowered.

With the help of medical staff, the device can be used to restore muscle function with reduced muscle strength by lifting and lowering the limbs. When training the legs, the patient simultaneously strengthens the muscles of the hands, and if one of the hands is damaged, he uses a healthy one.

Back muscles can be trained using a lodgement for the corresponding part of the body, which is fixed on suspensions 8.9, and then raise-lower, holding together the ends of 10.11 cables.

The advantage of the proposed device is the ability to perform various procedures and exercises during the rehabilitation of the patient after damage to the musculoskeletal system, as well as its low cost, ease of manufacture and use.

The presented drawings and description of the system allow, using well-known materials and components, to manufacture the device in an industrial way and use it for the rehabilitation of patients with injuries of the musculoskeletal system, which characterizes the proposed utility model as industrially applicable.

List of references

1. PCT application No. 91/05533, IPC A61H 1/02, publication 02.05.91

2.A.s. USSR No. 1655497, IPC A61H 1/02, publication 06/15/91 g,

Utility Model Formula

1. A rehabilitation device made on the basis of cable suspensions with locking mechanisms, characterized in that it contains a horizontally extended housing, inside of which are two cables, each stretched along the axial line of the housing between the corresponding pulley installed in the middle of the housing and the locking mechanism mounted on the corresponding end of the housing and containing a pair of eccentric drums between which the cable passes, and a spring-loaded pusher with a handle, while the first ends of the cables are withdrawn s through openings in the bottom of the hull located beneath the locking mechanisms form a rope holders, which are fixed lodgements for limbs, and the second ends of cables output through holes in the bottom, below the pulleys are used to adjust the length of rope suspensions.

2. The device according to claim 1, characterized in that the housing cover is provided with means for fixing the housing to an external holder.

FIG. 2

Claims (2)

1. Device for the rehabilitation of limbs, made on the basis of cable suspensions with locking mechanisms, characterized in that it contains a horizontally extended housing, inside of which are two cables, each extending along the axial line of the housing between the corresponding pulley installed in the middle of the housing, and a locking mechanism mounted on the corresponding end of the housing and containing a pair of eccentric drums between which the cable passes, and a spring-loaded pusher with a handle, while the first ends of VAVO output through holes in the bottom of the hull located beneath the locking mechanisms form a rope holders, which are fixed lodgements for limbs, and the second ends of cables output through holes in the bottom, below the pulleys are used to adjust the length of rope suspensions. 2. The device according to claim 1, characterized in that the housing cover is equipped with means for fixing the housing to an external holder.