RU152269U1 - FOLDING CHIPS - Google Patents

Abstract

Medical crutches with a folding seat, including two side racks, turning into a lower single rack with a rubber tip, an armpit, a handle for the hands, characterized in that the folding seat, hinged between the side racks, is made with the possibility of turning manually when folding at an angle of 90 degrees, which is limited by stops and fixed in the unfolded position by rigid clamps, pivotally fixed legs are fixed to the seat, opening simultaneously with the seat.

Description

3.0.0 The technical field to which the utility model belongs.

The proposed device "Medical crutches with folding seat" relates to medical equipment, traumatology and orthopedics, namely, crutches and is intended to facilitate the movement of people with injuries to the legs and spine. Crutches with folding seats help maintain the patient’s body weight while standing and walking, and also make it possible to additionally transform the structure into a sitting device, while at the same time supporting the body weight in case of illness or spinal injury with axillary support on the hand grip during sitting.

3.1.0.0. The level of technology.

Currently, crutches of various designs are used as devices to help patients with injuries of the musculoskeletal system of the legs and spine, while standing and walking. Axillary crutches and crutches with support under the elbow, with various design features, are mainly used. Known model of medical crutches from the literature "Big Medical Encyclopedia" // Editor-in-Chief Academician B.V. Petrovsky, M: Soviet Encyclopedia, 1979, Volume II, third edition. The crutch contains two racks, a support rod with a rubber tip put on it, two crossbars: an armpit and a handle. As a rule, all medical axillary crutches have this classic design.

The proposed design “Medical crutches with folding seat” also consists of a double strut (Fig. 3, Pos. 1) of the upper part of the crutch turning into a single support (Fig. 3, Pos. 2) with a rubber tip (Fig. 3, Pos. 3), arms for the armpit (Fig. 3, Pos. 4), hand grip for the hands (Fig. 3, Pos. 5), mounted on a double stand (Fig. 3, Pos. 1). To adjust the crutches according to the patient’s height, the double strut of the upper part of the crutch (Fig. 3 Pos. 1) is made sliding (telescopic), unlike the classical design of medical crutches, where the patient’s growth is adjusted by changing the length of the single support fixed in the holes on the double strut crutch.

The main difference of the proposed model “Medical crutches with folding seat” from the classic design of crutches is the presence of a crutch fixed between a double strut (Fig. 3, Pos. 1), a folding seat (Fig. 3, Pos. 8) designed to seat the crutches user necessary.

Known design "Crutch-chair" by V.A. Grandmother’s USSR copyright certificate No. 1762926 A1, published on September 23, 1992. The crutch — the chair contains racks (Fig. 1, Pos. 2) with an armpit mounted on them (Fig. 1, Pos. 1), a thrust handle (Fig. 1, Pos. . 3), holes (Fig. 1, Pos. 4), lugs (Fig. 1, Pos. 5), bushings (Fig. 1, Pos. 6) with screws (Fig. 1, Pos. 7), connecting rods (Fig. 1, Pos. 8), a rod (Fig. 1, Pos. 9), two bends (Fig. 1, Pos. 10) (Fig. 1, Pos. 11), a rubber tip (Fig. 1, Pos. . 12) the seat (Fig. 1, Pos. 13).

The main difference between the proposed model "Medical crutches with folding seat" from the device "Crutch-chair", the author V.A. Grandmother, USSR author's certificate No. 1762926 A1, dated 09/23/1992, is the presence of a crutch fixed between a double strut (Fig. 3, Pos. 1), a folding seat (Fig. 3, Pos. 8), two sliding legs ( Fig. 3, Pos. 13) fixed with a flat hinge (Fig. 3, Pos. 21) on a single crutch support (Fig. 3, Pos. 2) in the lower part of the crutch and additional front legs (Fig. 3, Pos. 9 ) with a rubber tip (Fig. 3, Pos. 10) that open simultaneously when folding the seat (Fig. 3, Pos. 8). This contributes to a more stable position of the device when sitting and a compact state when assembled when using the crutch while moving or standing. To adjust the proposed medical crutches with a folding seat according to the patient’s height, the double strut of the upper part of the crutch (Fig. 3 Pos. 1) is made sliding (telescopic), unlike the Crutch-chair device, where the user’s height adjustment is performed by moving the chair twice crutch rack (Fig. 1).

3.2.0 Disclosure of a utility model.

When using medical crutches for a patient with injuries of the musculoskeletal system of the legs and spine, while standing and walking, it becomes necessary to sit on a chair, bench, stool or other device for sitting. However, such a device for sitting may not always be at the location of the patient. While sitting a patient with spinal injuries, it is also necessary to carry out additional support to reduce body weight on the spine.

To provide the patient with the opportunity to rest with injuries of the musculoskeletal system using the sitting method and to reduce the impact of body weight on the musculoskeletal system of the legs and spine, the design "Medical crutches with folding seat" is proposed.

The proposed model “Medical crutches with folding seat” is based on the task of developing the design of medical crutches that will provide the following technical results:

1. The ability to design crutches of medical axillary to convert them into a seat, with axillary support to maintain the patient’s body weight while sitting;

2. The creation of additional supports (legs), based on a plane (ground, floor), with the aim of stability of the structure for sitting;

3. Providing a reliable and simple design that allows you to decompose the device for seating and fold into its original position, for the use of crutches for their intended purpose when walking and standing;

4. To facilitate the correspondence of the mass of crutches with existing analogues;

5. To be able to customize, within certain limits, the size of medical crutches according to the height of the user;

6. Conformity of the design of crutches with folding seats to the safety requirements for medical equipment;

7. The possibility of industrial production of the developed design. To solve the tasks it is proposed to apply the design

medical crutches with folding seats on the basis of the currently used classic design of medical axillary crutches by installing a folding seat (Fig. 3, Pos. 8) between the double stance (Fig. 3, Pos. 1) of the crutch. For the stability of the seat, in the lower part of the crutches there are folding additional supports in the form of two sliding legs (Fig. 3, Pos. 13) mounted on a single crutch support (Fig. 3, Pos. 2) using a flat hinge (Fig. 3 , Pos. 21) and two front legs (Fig. 3 Pos. 9). For rigid fixation of the unfolded seat at an angle of 90 degrees to the crutch, latches with a hook (Fig. 3, Pos. 17) are installed that lock the seat to the pin (Fig. 3, Pos. 19) mounted on two sides of the crutch's double strut. To limit the folding of the extensible legs (Fig. 3, Pos. 13) on the single support (Fig. 3, Pos. 2) of the crutch, angular stops are installed (Fig. 3, Pos. 14).

3.3.0.0. A brief description of the drawings.

For a visual disclosure of the proposed model, “Medical crutches with folding seats,” a number of graphic materials are presented, as shown in Section 5.0.0.

FIG. 1. In FIG. 1 shows the design of the device "Crutch-chair" by V.A. Grandmother copyright certificate of the USSR No. 1762926 A1, published on 09/23/1992 in the position for walking.

FIG. 2. In FIG. 2 shows the design of the device "Crutch-chair" by V.A. Grandmother copyright certificate of the USSR No. 1762926 Α1, published on 09/23/1992 in the position for sitting.

FIG. 3. In FIG. 3 shows the proposed design of a medical crutch with a folding seat with an open seat.

Pos. 1. Double crutch stance.

Pos. 2. Single crutch support.

Pos. 3. Rubber tip.

Pos. 4. The bar for the armpit.

Pos. 5. Handle for hands.

Pos. 6. Holes for adjusting the position of the handle for the hands.

Pos. 8. Folding seat.

Pos. 9. Front legs.

Pos. 10. Rubber tips of the front legs.

Pos. 11. The bar sliding legs.

Pos. 12. Rubber tip of the sliding legs.

Pos. 13. Sliding legs.

Pos. 14. Angle stops.

Pos. 15. The lever of a clamp.

Pos. 16. The return spring of the folding seat.

Pos. 17. The latch with a hook.

Pos. 18. An emphasis of restrictions of folding of a seat.

Pos. 19. Pin for fixing the seat.

Pos. 20. Ball joint.

Pos. 21. The flat joint.

FIG. 4. In FIG. 4 shows the proposed design of a medical crutch with a folding seat with a closed seat.

Pos. 8. Folding seat.

Pos. 9. Front legs.

Pos. 14. Angle stops.

Pos. 15. The lever of a clamp.

Pos. 16. The return spring of the folding seat.

Pos. 17. The latch with a hook.

Pos. 18. An emphasis of restrictions of folding of a seat.

Pos. 20. Ball joint.

Pos. 21. The flat joint.

FIG. 5. In FIG. 5 shows a sectional view of the locks installed in the seat (Fig. 3, Pos. 8) for fixing the front legs (Fig. 3, Pos. 9)

Pos. 15. The lever of a clamp.

Pos. 22. Connection extension cords.

Pos. 23. Hooks of connecting extension cords.

Pos. 24. The latch latch.

Pos. 26. The spring latch latch.

3.4.0.0. Implementation of a utility model.

The proposed model “Medical crutches with folding seat” constructively refers to axillary crutches, and consists of a double rack (Fig. 3, Pos. 1) in the upper part of crutches, turning into a single support (Fig. 3, Pos. 2) with a rubber tip (Fig. 3, Pos. 3), arms for the armpits (Fig. 3, Pos. 4) in the upper part of the crutches, hand grip for the hands (Fig. 3, Pos. 5), mounted on a double stand (Fig. 3, Pos. 1) and a folding seat (Fig. 3, Pos. 8) with a locking device with a hook (Fig. 3, Pos. 17) in its expanded form. This is in compliance with the design requirements of section 3.2.0. paragraph 1.

To adjust the size of the crutches according to the height of the user, the double stand (Fig. 3, Pos. 1) of the upper part of the crutches is made sliding (telescopic), the position of the handle for the hands (Fig. 3, Pos. 5) is set by moving through the holes to adjust the position of the handle for hands (Fig. 3, Pos. 6), which corresponds to the fulfillment of the requirements for the device section 3.2.0 paragraph 5.

As a sitting on a crutch in the interval of a double rack (Fig. 3, Pos. 1), in its lower part, a folding seat is installed (Fig. 3, Pos. 8). The folding seat is mounted movably on the pivot axis between the double legs of the crutch. Turning the folding seat during opening can only be done in one direction. Opening the seat to the other side of the crutch is not allowed by the restraint stops (Fig. 3, Pos. 18) of folding the seat.

To the seat (Fig. 3, Pos. 8), in a calculated place, on both sides, is mounted on a ball joint (Fig. 4, Pos. 20) a bar of sliding legs. (Fig. 3, Pos. 11) on each side. These rods are extendable legs. (Fig. 3, Pos. 11), in its lower part, are connected by the same ball joints (Fig. 3, Pos. 20) with rotary sliding legs (Fig. 3, Pos. 13), with rubber tips (Fig. 3 , Pos. 12) at the end. The legs are fixed with a flat hinge (Fig. 4, Pos. 21) to the single crutch support, in its lower part. The extendable legs (Fig. 3, Pos. 13) coincide in shape with the shape of the crutch in its lower part, and when folding, they fit the shape of the transition of the double crutch stance into its lower single support. The extendable legs (Fig. 3, Pos. 13) serve to enhance the stability of the crutch when the patient is sitting. In the expanded state, additional legs (Fig. 3, Pos. 13) raise the lower end of the crutch with a rubber tip (Fig. 3, Pos. 3) above the floor plane. This contributes to the stable position of the structure when sitting.

The opening angle of the seat (Fig. 3, Pos. 8) is 90 ° limited by angular stops (Fig. 3 Pos. 14) for sliding legs installed in the lower part of the single support. The opening angle of the seat is also 90 degrees limited by the seat connection (Fig. . 3, Pos. 8) with a double crutch rack with latches with a hook (Fig. 3, Pos. 17), locking with a pin (Fig. 3, Pos. 19) for fixing the seat. The pins for fixing the seat are mounted on a double crutch rack (Fig. 3, Pos. 1). The latches with hooks (Fig. 3 Pos. 17) are pressed with a hook against the pins for fixing the seat (Fig. 3, Pos. 19) with springs with double-sided gripping (the springs in Fig. 3 are not shown conditionally and can have different designs). Another design is also possible to limit the opening angle and fixation of the seat, aimed at fulfilling the requirements of section 3.2.0. paragraph 2.

At the initial opening of the seat (Fig. 3, Pos. 8) until it stops down to an angle of 90 degrees, two latches with a hook (Fig. 3, Pos. 17) with pins for fixing the seat (Fig. 3, Pos. 19) are automatically locked. mounted on a double crutch support. The movement of the sliding legs (Fig. 3, Pos. 13) connected to the seat by the rods for the sliding legs (Fig. 3, Pos. 11) is limited by the angular stops (Fig. 3, Pos. 14) for the sliding legs. Thus, the seat is firmly fixed at an angle of 90 degrees to the crutch. After that, by moving the handle of the leg lock (Fig. 3, Pos. 15), the front legs (Fig. 3, Pos. 9) are lowered, which are also rigidly fixed by these clamps (Fig. 10) installed in the seat structure on both sides. Such fixation of the sliding legs and the rigid installation of the seat at an angle of 90 degrees to the legs of the crutch ensures compliance with the requirements of section 3.2.0. p. 2 and p. 6.

Folding the seat is performed by removing by hand from the closed state the latch with a hook (Fig. 3, Pos. 17) that closes with a pin for fixing the seat (Fig. 3, Pos. 19). Since both latches are interconnected by a bar passing inside the seat, both latches of the latches open simultaneously. Under the action of the return springs (Fig. 4, Pos. 16), the seat is installed in the gap of the double pillar (Fig. 3, Pos. 1) to the stops of folding the seat (Fig. 4, Pos. 18; Fig. 3, Pos. 18) . After that, by pushing the lever of the lock (Fig. 3, Pos. 15), the legs themselves, under the influence of their own weight, lower into the seat and are fixed with the same lock in the closed position (Fig. 4). In this position, crutches are ready for use for walking and standing. This design complies with Section 3.2.0. paragraph 3.

There are other possible elements for fixing the folding chair in the proposed device "Medical crutches with folding seats." Crutches with folding seats are made of light metals or plastic to reduce the weight of crutches and their production is not difficult.

Claims (1)

Medical crutches with a folding seat, including two side racks, turning into a lower single rack with a rubber tip, an armpit, a handle for the hands, characterized in that the folding seat, hinged between the side racks, is made with the possibility of turning manually when folding at an angle of 90 degrees, which is limited by stops and fixed in the unfolded position by rigid clamps, legs are pivotally fixed to the seat, which open simultaneously with the seat.

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