RU2027425C1 - Device to facilitate walking - Google Patents

Abstract

FIELD: medical engineering, particularly, traumatology and orthopedics; orthopedic device for stepping up rehabilitation of patients. SUBSTANCE: device includes support upright composed of two relatively movable members 2 and 4, retainer 3, handgrip 1, and base with rubber end fittings. Lower member 4 has vertical portion that helically fades out into horizontal base. EFFECT: more sophisticated design. 3 dwg

Description

 The invention relates to medical equipment, namely to traumatology, orthopedics, and can be used to teach walking patients during the recovery of lower limb functions and the acquisition of walking skills in medical institutions, in rehabilitation centers, boarding houses and at home.

 Known devices for facilitating walking patients and conducting active gymnastic exercises.

 A device with four legs, a cross member, side handrails forming a frame in which the patient can stand freely (application EPO (EP) N 0229445, publication 87.07.22 N 30).

 A walking device containing a rigid frame with handles and supporting elements (a.c.SSSR N 586911, decl. 18.10.76, class A 61 H 3/04).

 This device allows the patient to move on an uneven surface. The presence of a rigid frame, transverse links, articulated joints with cylindrical frames, support elements in the form of guide rollers and locking heels complicates the design of the device, increases its weight, requires considerable physical effort from the user to move him.

There are a number of devices made in the form of a handle, a base and rubberized 3 ^x 4 ^x supports for increasing the stability of the device, manufactured by foreign firms Mayra, Walking Aids, etc.

Of the analogues listed in the "Help", the authors selected for the prototype 4 ^x support device for walking (prospectus DMA-Pays Medical Walking Aids N 474), consisting of a base and a retractable palm rest, mounted at a fixed height. The base is a welded construction of pipes forming four legs in the lower part with rubber lugs put on them.

 However, this device has several disadvantages, namely: design complexity: the base consists of 5 elements interconnected by welding, the large metal consumption of the structure causes increased fatigue of the patient when walking, insufficient stability due to the center of gravity of the structure is higher than the proposed one, which reduces the maximum allowable angle of inclination of the device to the supporting surface, i.e. decreases the stability of the device when moving the patient on an uneven surface.

 The aim of the invention is to simplify the design while reducing the weight of the structure and increasing its stability.

 This goal is achieved in that the walking device comprises a base, a height adjustment lock and supports. New is that in the inventive device, the base is made in the form of a rod, moving from a vertical position to a horizontal one in a spiral, the horizontal part being made in radius and lower supports are installed on it at an equal distance from each other.

The implementation of the base in the form of a rod, moving from a vertical position to a horizontal one in a spiral greatly simplifies the design, since only one bending operation on a pipe bending machine is required. In the prototype, for the manufacture of the base, pipe cutting operations are required for 5 workpieces (a rod and 4 supports), manufacturing of a device for fastening workpieces for welding, welding of a rod and four supports to each other, stripping of welds, heat treatment to relieve internal stresses in the metal at the welding sites. In addition, in the prototype, the total length of 4 ^x supports and the rod is 800-850 nm, and in the proposed technical solution, the base is made of one piece, 650-700 mm long, which reduces the weight of the structure by 15-20%.

 The stability of the design of the proposed technical solution is increased due to the displacement of the center of gravity to the horizontal part of the base in comparison with the prototype.

 A comparative analysis shows that the claimed technical solution meets the criterion of "novelty."

 When comparing the inventive device not only with the prototype, but also with other well-known technical solutions, solutions with similar features were not found. A complete set of these features allows you to achieve a positive effect, simplifying the design while reducing its weight and increase stability.

 This allows us to conclude that the technical solution meets the criterion of "significant differences".

 Figure 1 shows a four-support device for walking (prototype); figure 2 shows the proposed device for walking, General view, figure 3 shows the proposed device for walking, top view.

 Four-foot device for walking - the prototype (figure 1) consists of a base 1, a retractable palm rest 2, legs 3, rubber tips 4.

 The proposed device for walking (FIGS. 2 and 3) comprises a handle 1, an upper support 2, a height adjustment lock 3, a base 4 made in the form of a rod moving from a vertical position in a spiral position to a horizontal one, made in radius, on which rubberized uniformly are located supports 5 (three pieces).

 The patient, leaning on the handle 1 of the upper support 2, moved vertically of the device, moves or uses it to rest.

 When walking on an uneven surface, the base 4, made in the form of a rod, moving from a vertical position in a spiral to a horizontal position, dampens the vibrations of the device, and the horizontal part of the base, located 30-40 mm from the supporting surface, makes it easy to use, as it decreases the ability to engage the feet of the base of the device and increases the stability of the device due to the fact that the center of gravity of the proposed technical solution is much closer to the supporting surface than the prototype.

 In addition, the implementation of the base in the form of a spiral, passing from a vertical plane to a horizontal one, causes elastic deformations that dampen the vibrations of the device that occur when walking on an uneven surface.

 In the prototype, having 4 rigid supports 4, such fluctuations are inevitable, which causes discomfort to the user of the device.

The location of 3 ^x rubberized lower supports at an equal distance instead of 4 ^x - the prototype also increases the stability of the proposed device.

 Using the proposed technical solution allows to reduce the complexity of manufacturing the device by 10-12%, reduce the weight of the product by 15-20%, increases its stability and ease of use, makes it possible to use domestic pipe bending mills released at enterprises as a result of conversion.

 Currently, the association has developed a new technology for the manufacture of devices; prototypes have been manufactured that undergo medical and technical tests at VNIIMT and clinics in Moscow.

Claims (1)

 A WALKING DEVICE comprising a support stand made of two mutually movable elements with a position lock, the lower of which is equipped with a base with rubber tips, and a handle is installed on the upper curved element, characterized in that, in order to increase ease of use by reducing the weight of the structure , the lower element of the rack has a vertical part, spiraling into a horizontal base.

Images