SU1284534A1 - Arrangement for reposition and fixing of fractures of tubular bones - Google Patents

Abstract

This invention relates to traumatology and orthopedics and provides lateral reposition and maintenance of compression and distraction. The device comprises a platform 1, a base in the form of an I-beam 3, a rack 4, a lead screw 5, a carriage 8, a clamp 11 a dynamometer 17, a lodgement 22 of a limb mounted on a ball joint, devices 26 for fixing and repositioning the limb with rings 34, pilot - mi 39 and lodgements 40. Carry out the connector of the rings 34. The limb is placed on the lodgements 40 and fixed with a bandage to the lodgement 22, the rings 34 are closed. Moving the dynamometer with the carriage 8 along the beam 3 removes the mixing of the bone fragments. Peloty 39 eliminate the displacement of fragments in width. By moving the rings 34 in the transverse direction, the angular displacement is removed up to 10 °. With the help of a dynamometer with tension and compression scaling, they create compression between the bone fragments, which reduces the invasiveness and the time of the operation. 1 h. n. f-ly, 3 ill. $ (L

Description

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The invention relates to medical technology, namely to traumatology and orthopedics.

The purpose of the invention is to provide lateral reposition, as well as the ability to maintain compression and distraction of bone fragments.

FIG. 1 shows a device for reposition and fixation of tubular bones, axonometrics; in fig. 2 - the same, front view; in fig. 3 is a view A of FIG. 2

The device comprises a platform 1 to which a base, made in the form of an I-beam 3, pillars 4, a driving screw 5 with a handle 6 and an emphasis 7 having an opening for the driving screw 5, are fastened with screws 2, and a support 4 is installed on the carriage 8, made in the form of rails 9, between which the sleeve 10 is installed, have a threaded connection with the lead screw 5, a clamp 11 is installed on the rack 4 and consists of a pin 12, which can be rotated due to the presence of a nut 13 relative to the strip 9. The finger 12 is provided with a groove 14 , in the latter with the help of screw 15 The end 16 of the rack 4 is fixed to which the dynamometer housing 17 is rigidly fixed. Inside the dynamometer housing 17 there is installed an elastic element in the form of successively connected compression springs 18 and extension 19. Inside the springs 18 and 19, a scraper 20 is installed, at one end of which a ball joint 21 movably reinforced lodge 22 limbs.

In the case of the dynamometer 17, a groove 23 is made, in which the pointer 24 is located. Along the groove 23 there is a scale 25, graduated in kilograms per centimeter. At the other end of the base 3 are devices 25 for fixing and repositioning the limb. Each of these devices has a rack 27. Along the latter, a flange 30 with a flange 31 is moved with a nut 28 and a screw 29, along which the bar 32 is positioned with the possibility of longitudinal movement and rotation. Fixed by a screw 33. The bars 32 are attached to the bars 32, consisting of two parts interconnected by means of axles 35. The rings 34 are made with grooves 36, in which the inserts 37 move with threaded locks 38 having peloty 39. On the lower part of the ring 34, the cradle 40 is mounted. Threaded locking 38 equipped with a dipper handle 41.

Method of application of the device. The device is mounted on the operating table and the rings 34 are connected. The injured limb is placed on the cradle 40 and fixed with elastic bandages to the cradle 22, after which the rings 34 are closed. Then using a dynamometer 17,

which moves along the I-beam 3 on the carriage 8 with the help of the shaft screw 5, removes the displacement of the bone fragments along the length of 4, 5 cm. After this, the movable pilots 39 mounted on the rings 34 eliminate the displacement of the bone fragments in width. The accuracy of the comparison is monitored with the help of Ro-graphy. On the control radiograph of bones there is no displacement of fragments along the length and width. The installed angular displacement of the distal segment outwards by more than 10 ° is eliminated by mixing the ring 34 in the transverse direction by 2.5 cm. After repeated Ro-control with a dynamometer 17, compression is created between the bone fragments within 45 kg. The postoperative course is smooth, without complications. Full recovery after 6 months from the moment of injury.

Example. Ill, 59 years old, working. Delivered from the scene of a road traffic accident. Diagnosis: Combined injury; trache head injury; closed thoraco-abdominal damage (rupture

lung, small intestine); multiple right rib fractures (IV-1l), pneumothorax; closed coarse fracture of the right femur in the proximal section with mixing of bone fragments; closed coarse, triple fracture of the bones of the right tibia, fracture of the right medial ankle with mixing; GPP; Irna is a diluted wound of the right half of the face; pleuropulmonary shock. The patient was superimposed device on the lower limb. The result of treatment is selective.

Designed device for reOption

and fixation of the overburden of the long tubular bones of the extremities ensures accurate and metered repository of bone fragments, reduces the trauma and the time of the operation, reduces the radiation load on the patient.

Claims (2)

1. A device for reposition and fixation of fractures of tubular bones, containing a base with posts that have the ability to move vertically, a lead screw with a handle associated with wasps, a limb mount, and a main split ring with threaded fasteners mounted on it , characterized in that, in order to provide lateral reposition, as well as the possibility of maintaining compression and distraction of the bone fragments, the lead screw is associated with a rotary strut, the latter is fixed to a dynamometer, the elastic element of which is Ht – Olnen in a wilt of series-connected tension and compression springs, and its the stem at the free end has an articulated hinge connected to the limb lodgement, the struts have the possibility of longitudinal mixing and on them the main and additional split rings are installed cantileverly and pivotally and transversely. 2. A device according to claim 1, characterized in that the din ammeter is made with scales of tension and compression.