RU33315U1 - ORTHOPEDIC APPARATUS FOR TREATMENT OF HIP DYSPLASIA - Google Patents

Description

ORTHOPEDIC APPARATUS

For the treatment of hip joint dysplasia

The invention relates to devices for fixing parts of the human body in a specific position, and more specifically, to orthopedic devices that allow for holding the lower limbs of a child in a given position.

It is known that with dysplasia of the hip joint in children up to one year of age, the therapeutic effect is achieved by fixing the lower limbs of the child in the Lorenz I position (removal of the hips with bending in the hip and knee joints to a right angle). In this position, under the action of muscle traction, the femoral head and the acetabulum perform mutual backpressure. As a result, conditions are created for the correct morphological correlation of articular surfaces and physiological mutual irritation. This contributes to the normal development of the joint surfaces of the hip joints.

Many designs of devices for fixing the hips of a child in a position divorced at an angle of 90 or more q have been developed. They can be divided into soft and hard. Soft structures are easily bent, and therefore, when inoperative, they are flat, and they are given the necessary three-dimensional shape directly when attached to the child’s body. They allow a certain freedom of movement of the lower limbs of the child, while rigid structures more clearly fix the lower limbs in the desired position.

Soft constructions include, for example, Pavlik stirrups (Schein orthopadische Service Avenue, p. 96), apparatus prof. Becker (Becker) and prof. Mittelmeier (Mittelmeier), made in the form of a perforated polyethylene film with trimmed edges and gangway fixing elements (ibid., P. 97)., Apparatus prof. Mittelmeier (Mittelmeier) and prof. The graph (Graf), made in the form of an L-shaped figure made of foam rubber, sheathed with a removable cotton cover with straps fixing elements sewn to the ends of the legs of the L-shaped figure (ibid., P. 93).

IPC: A61F5 / 01, 5/37 child. Rigid structures include, for example, an abduction apparatus

The baby (Ortez Branch Avenue about TsSTRI, p. 11.3), which includes a belt and metal brackets attached to it with cuffs for fixing the child's hip.

The Lorracher Bevegungsschhine tire contains plastic pads that are placed on the child’s knee joints and a sliding tire attached to them with its ends that allows you to adjust the breeding angle of the child’s lower limbs (Otto Bock HealthCare Gmb Avenue, p. 5.18).

The device according to the patent of Ukraine for utility model No. 789 (A61F 5/01, publ. March 15, 2001) has on the belt a mechanism for fixing the body, cuffs for legs, and a dynamic unit that allows you to change the angle of the outlet.

Rigid apparatuses include the apparatus of the United States Manufacturing Company (see the prospectus of this company, item 163). It is a three-dimensional figure made by extrusion of high density foam polyethylene (Plastazote trademark), which in the folded state has the shape of the hip part of the child’s body. A divorced figure is worn on the child, its upper parts are brought together and fixed with the straps provided for this. In fact, this device has some properties of devices of soft design, but it cannot acquire a flat shape, which increases the cost of its transportation. In addition, its manufacture is technologically quite complicated: you need a mold of complex shape.

The closest in design to the claimed device is a device Rhino Splint company De La Torre Orthotics and Prosthetics, Inc. (CM. Website of this company www.delatorre.biz). It includes an elastic polymer plate having a narrowed part - the back, an expanded part, divided by a cut into two legs, a stiffener, and straps for fixing the back and legs. The plate is made of foam rubber or low density polyethylene foam and can easily be bent. The back and the upper part of the legs of the plate are glued to a stiffener, which is a plastic figure in shape resembling a child’s seat. The legs of the plate are so long that when the apparatus is installed, the leg completely covers the baby’s thigh and the end of the leg is adjacent to its upper part. In this position, the leg is fixed with a girdle fixing element, one end of which is constantly attached in the zone of transition of the narrowed part of the plate to the expanded one, and the second is fixed here after twisting around the leg.

2 The disadvantage of this device, like most other devices,

is the difficulty of manufacturing. Although the plate can be made by simple cutting or carving, a mold of complex shape is required to produce a stiffener. Since the stiffener has a three-dimensional shape, in a packaged form, the device takes up more space than devices of a soft design. In addition, due to the fact that in the superimposed form the legs completely cover the hips of the child, and even are pressed to them by fixation elements, diaper rash of the skin of the child may occur in these places, especially if the air temperature is high.

The basis of the invention is the task to develop an easy-to-manufacture and convenient for packaging and transportation orthopedic apparatus for the treatment of hip dysplasia, which provides reliable fixation of the lower limbs of the child and sufficient ventilation in the places of application.

In an orthopedic apparatus for the treatment of hip dysplasia, which includes an elastic polymer plate having a narrowed part - a back, an expanded part, divided by a cut into two legs, a stiffener, and straps for fixing the back and legs, according to the invention, the plate is made of foam of high density polyethylene 5-15 mm thick, and the stiffener is a crossbar fixed in the middle of the legs.

With a thickness of less than 5 mm, the apparatus is not sufficiently rigid, with a thickness of more than 15 mm, the plate is too rigid and does not bend well. Placing the lintel in the middle part of the legs ensures that the legs of the plate bend so that the ends of the legs are in a position close to vertical and do not touch the upper part of the legs, i.e. the child’s thigh is not completely covered and there is sufficient air access to it.

For the convenience of putting on the device, it is preferable that the girdle elements for fixing the legs were attached in the zone of transition of the narrowed part of the plate to the extended one, and loops for threading the gang elements were fixed near the edges of the legs.

A preferred embodiment of the invention is shown in the drawings, wherein: FIG. 1 is a rear view of the apparatus, FIG. 2 is a front view of the apparatus in the operating position, FIG. 3 is a side view of the apparatus in the operating position.

3

(Plastazote), as mentioned above. Depending on the pore density, plastazot is released under the numbers 1, 2 and 3. The highest density is plastazot No. 3. The plate material is plastazot No. 3 with a thickness of 12 mm.

To the back 1, rivets 4 are attached a textile harness locking element 5 with a loop at one end and Velcro at the second end. To the legs in their middle part, in pairs of rivets 6, a strap-jumper 7 is made of thermoplastic sheet polyethylene.

Loops 8 are made of the same material as the jumper strip. They are fixed near the edges of the legs 3 and can be rotated around the fastener 9. The strap elements of fixation of 10 legs are attached in the transition zone of the narrowed part of the plate to the expanded rivets 11. At their free ends Velcro placed. All of the above parts are attached to the back of the plate.

The apparatus of the described construction is simple to manufacture, since the plate and the jumper strip of the desired configuration are obtained by simple cutting or carving from sheet material. The plate is made of 6 standard sizes, indicated in the table, respectively, the distance in centimeters between the popliteal hollows in the state of hip removal with bending at the hip and knee joints to a right angle, which in the drawings corresponds to the distance between the lateral edges of the expanded part.

Due to the fact that all parts of the apparatus are flat, it is convenient for packaging and transportation.

The device is worn on thin cotton clothing (sliders, etc.) or diapers. In a deployed form, it is laid out on a changing table with the back to the table and the back 1 away from you. The child is placed with his back on the apparatus so that the transition from the back 1 to the legs 2 is in the projection of the hip joints. Netugo fix the textile glue fixing element 5 on the abdomen of a child, threading its end through a loop and fastening with Velcro. After the necessary removal of the hips, looped elements of fixation 10 are passed through loops 8, the ends of the legs are bent to a position close to vertical, and the ends of the straps are fixed with Velcro.- .n-nr i. f

Claims (2)

1. Orthopedic apparatus for the treatment of hip dysplasia, which includes an elastic polymer plate having a narrowed part - the back, an expanded part, divided by a cut into two legs, a stiffener and strap elements for fixing the back and legs, characterized in that the plate is made of foam polyethylene high density with a thickness of 5-15 mm, and the stiffener is a crossbar fixed in the middle of the legs. 2. The orthopedic apparatus according to claim 1, characterized in that the girdle elements for fixing the legs are attached in the zone of transition of the narrowed part of the plate to the extended one, and loops for threading the gang elements are fixed near the edges of the legs.