SU1648416A1 - Pin - Google Patents

Abstract

The invention relates to pins for osteosynthesis and is intended to shorten the rehabilitation period. The pin contains coaxially arranged tubes in one another 14. 15, made of bone and rigidly interconnected by means of tight joining and gluing. , the heads of which are installed in the patch 1, and the middle parts of their rods in the tubes 14, 15. Moreover, in the patch 1 a compression groove 6 is made under the stop screw 7, with which the fragments are compressed. 6 Il.

Description

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

The aim of the invention is to reduce the time of rehabilitation.

FIG. 1 shows a pin for osteosynthesis; in fig. 2 shows section A-A in FIG. one; in fig. 3 - nail design; in fig. 4 - stud designs; in fig. 5 - lining the inner side; in fig. 6 - pin, longitudinal section.

The lining 1 is made of a rigid part of an immunologically treated bone of a human or animal. It is a trough-shaped plate with holes 2 and 3 for nails 4 and 5 and a compression groove 6 for the stop screw 7, which is removed after removing the compression clamp (not shown).

Nails 4 and 5 are identical in construction and differ only in length. Each nail is made in the form of a rod with a head 8 and a longitudinal groove 9 of square section, the bottom of which at the end of the nail 4 smoothly disappears. In the groove 9 nail 4 dl

fixing it is driven in by the fixing pin 10, also square in section on the side of the groove 9 and rounded on the outer side 11 and at the end 12. The nails 4 are made of the same material as the pin and the overlay. The intramedullary part 13 of the pin is made of at least one or two tubes 14 and 15, made of donor tubular bones, inserted (if the pin is not single-tube) tightly into each other and they can be glued by a self-absorbing plastic sheath 16. the pin part 13 has a rounding of the end 17, and the top has a “8” facet under the packing mandrel (not shown). Along the entire intramedullar part 13, a circular longitudinal lumen canal 19 extends to form the bone marrow channel of the femur.

The pin is set as follows.

From the side of the greater trochanter of the femur 20, a hole is drilled into the bone-brain canal 21 under the intramedullary part 13 of the pin through tools

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fracture area. After reposition of the fragments, they are fixed by the intramedullary part 13 of the pin, driven into the drilled brain-brain canal 21 through the fracture area 22.

Skeletonize the area of fracture 22 under the strap 1 and after it is laid through the holes 2 and 3, the channels are drilled under the nail 5, which are hammered through the upper fragments and the intrameduular portion 13 of the pin, fixing the strap 1. Then the nails 5 are firmly fixed with studs 10 and 11, which at the end of the nails 5, protruding by the grinding bottom of the groove 9, resting against the wall of the channels of the nails 5, clamping their ends,

In the femur 20, not the passage into the intramedullary part 13 of the pin, a screw 7 and a clamp (not shown) laid on the screw 7 and the upper cut are screwed into the lower part of the compression groove 6.

masonry 1, the fragments are brought closer and compressed, after which through the pad 1 from below they are fixed with nails 4, just as such fixation was performed with nails 5, and the clamp and screw 7 were removed.

Thereafter, the outwardly protruding ends of the hairpins 10 and 1-1 (and others) are cut, the lining 1 is covered with previously removed periosteum and soft tissues, and the wound is sutured in layers.

Claims (1)

Claims An osteosynthesis pin containing coaxially arranged tubes into one another, made of bone and rigidly connected to each other, characterized in that. that, in order to shorten the rehabilitation period, a gutter-like pad with nails is inserted into it, the heads of which are mounted in the pad, and the middle parts of their rods are placed in the tubes. Schig.1 20 13 eleven FIG. 2