SU1217405A1 - Arrangement for immobilization of extremity in case of fractures - Google Patents

Description

The invention relates to medicine, namely to traumatology and orthopedics, and can be used for the transport and therapeutic immobilization of limbs for bone fractures and soft tissue damage.

The purpose of the invention is the ability to control the degree of circumference of the limb.

FIG. 1 schematically shows a device for immobilization of a limb for fractures; in fig. 2 - the same, after deformation in a cooled state.

The immobilization device comprises an elastic thermoplastic plastic, for example, a polyvik, a tire 1 having perforations 2 and reinforced with strips 3 that intersect the perforations 2, with the ends 4 of the strips 3 standing on the sides of the tire 1.

The implementation in the device for immobilization of reinforcing strips 3 from a material with a thermomechanical memory, for example from titanium nickelide TH-IC, provides the possibility of bending and unbending strips 3 by alternating temperature effects, thus controlling the density of the circumference of the injured limb.

The device works as follows.

For example, when a knee joint is torn, the device chosen for immobilization (the diameter of the groove

0

the level should be 1 / 3-1 / 4 less than the diameter of the immobilized limb segments, i.e., thighs and tibiae), cooled to a temperature below + 10 ° С, for example, irrigating its surface with chloroethyl for 10-15 s, after the edge of the tire-gutter 1 is diluted, and the strip 3 is then extended, and the device is placed on a limb. After 20--30 s, in connection with the contact heating of the strips 3 to a temperature higher than -t-10 ° C, the memory effect of the form of titanium nickelide appears, the strips 3 tend to take on their original shape, due to which dense girth tire 1 damaged limbs. If the treatment process is not necessary, for example, after the edema of the knee joint subsides, the lanes 3 are additionally heated at an appropriate level by, for example, touching the tip of the thermal probe {heated to + 100-120 ° C) to the areas

strips 3, standing in the perforations 2 of the tire 1, and by a similar effect on the ends of the strips 3 standing on the sides of the strip 1, thereby increasing the circumference of the tire

damaged limb. In cases where it is necessary, on the contrary, to reduce the tire circumference density of the injured limb, the tire is placed in circles with ice or the ends of the 4 strips 3 are irrigated with chloroethyl and the portions of the strips 3 intersecting the perforations 2 of thickness 1.

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Compiled by L. Musso

Editor M. DylynTehred I. VeresKorrektor L. Patay

Order 1024/7 Circulation 659 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

1G3035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR IMMOBILIZATION OF A LIMB AT Fractures, containing a grooved tire with holes made of elastic thermoplastic plastic, characterized in that, in order to be able to control the degree of girth of the limb, the tire is reinforced with strips in the transverse direction passing through the holes and made of material having a forming memory. Fig-1