SU1205900A1 - Arrangement for closed reposition and fixing bone fragments - Google Patents

Description

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The invention relates to medical technology, namely to devices for carrying out osteosynthesis.

The purpose of the invention is to simplify the operation of osteosynthesis.

The drawing shows a device for closed reposition and fixation of bone fragments, general view.

The device comprises supports in the form of two rings .1 and 2, connected by means of plates 3, provided with a threaded end 4 and having holes for fixing screws 5. At the same time the fixing screws 5 are mounted on the lateral surface of rings 1 and 2 and in the holes of the plates 3. One of the rings 2 is mounted with the possibility of moving relative to the other ring and provided with eyelets 6 through which threaded ends of the 4th strip are drawn. Tensioning 7 and fixing 8 nuts are installed on the threaded ends of the 4 bars, and screws 9 for fixing the bars 3 to the ring 1.

The device is applied as follows.

Closed reposition of fragments was performed under general anesthesia. The integuments are processed in a known manner, rings 1 and 2 are put on the distal and proximal metaphyses, and the threaded ends 4 of bars 3 are held through the lugs 6 of ring 2. Depending on the length of the bone of the bar 3, they are fixed with screws 9 to the ring at the same distance from the ends of the slats. The locking screws 5 are screwed into the threaded holes of the rings 1 and 2 on all four sides until they are firmly fixed to the bone, and small incisions are made on the skin. By rotating the tension nuts 7, they act on the ring 2 and stretch the fragments in length. Given the data control

Editor A. Kozoriz

Compiled by L.Soloviev

Tehred O. Niece Proofreader M. Pojo

Order 8582/6 Circulation 5 ° W.Subscribed

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch P1P Patent, Uzhgorod, st. Project, 4

059002

x-rays in the required projections determine which fragments are to be approximated to the biomechanical axis of the bone and the introduction of additional

The 5 fixing screws 5 in the threaded holes of the strips 3 finally eliminate the displacement of the fragments. In the case of skew-displaced fractures, an anti-lateral compression of the fracture is created. After that, in a number of cases, a closed intramedullary osteosynthesis is performed and the device is immediately removed. In other cases, aseptic dressings are applied to the places where the fixing screws 5 pass through the skin and the device remains on the limb until the fragments are spliced. Tightening the fixing screws makes it possible during the treatment

20. Maintain stability of fragments. 1The step-pointed end of the set screws serves to prevent the latter from penetrating into the medullary canal during prolonged

25 using the device.

The absence of spokes that cross the medullary canal in the transverse direction makes it possible, with 30 fractures closed, to simplify intramedullary osteosynthesis, during which the limb can be bent at a right angle at the knee joint, which facilitates the insertion of the intramedullary

The simplicity of the device, the ability to maintain a stable position of the fragments in the treatment process, the lack of contact with the bone marrow channel, and the possibility of compliance with the training regimen with a shortened period of treatment and rehabilitation of patients.

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Claims (1)

DEVICE FOR CLOSED REPOSITION AND FIXATION OF BONE CROSSES, containing Supports. in the form of two rings connected by trims. with holes installed in the eyes of the rings, fixing screws, characterized in that, in order to simplify the operation of osteosynthesis, fixing screws are installed on the side surface of the rings and in the holes of the slats.