Correcting device for the spine

 

(57) Abstract:

The invention relates to medical equipment, namely to external devices used in orthopedics and traumatology, in particular used in the treatment of diseases and injuries of the spine. Correcting device for the spinal column contains the unit of fixation of the vertebra, which is made of support in the form of two straps connected to the Central support element and ends with lateral support elements. In the longitudinal slots of the slats installed clamps with clamps vertebra. While the blocks of fixation of the vertebra is connected for movement with each other through the United elements. The technical result consists in the possibility of eliminating the scoliotic spinal deformity and the introduction of tabs vertebra regardless of the location of the planes of the support block fixation of the spine. 3 C.p. f-crystals, 2 Il.

The invention relates to the field of medical equipment, namely to external devices used in orthopedics and traumatology, in particular used in the treatment of diseases and injuries of the spine.

A device for treating distortion and damage the U-shaped plugs with grooves under the spokes, which are fixed the ends of the branches of the brackets, while the U-shaped rollers mounted on the tops of the brackets with the possibility of forward movement (A. C. 1448432, USSR, MKI4A 61 B 17/60).

A device for stabilization and correction of the spine, containing bone rods, the longitudinal rod module sagittal correction and the sites of fixation and is equipped with a torsion module correction in the form of a cage spherical joints connected by threaded couplers located diagonally directly with bone rods (p. 2029520, EN, CL A, 61 B 17/60, publ. 27.02.95,, bull. 6).

Known clamp for fixing of bones or bone tomcom, in particular vertebrae, containing two of the holder, which holder is installed by Klimovich mounts at least two screwed into the bone screw, the owners have elongated slots on each shank, the latter are connected by pins and ball joints (application N 2834891, Germany MKI2A 61 B 17/18 Clamp for fixing of bones or bone fragments, in particular vertebrae, publ. 04.09.80 g)

However, in the known clamp for fixing of bones or bone fragments, in particular vertebra, bearing is made integral with two of setrootelement under the control of the United supports. In addition, this arrangement of the connecting joints in structures known to release no provision for the correction of scoliotic deformities, and when introduced into the body of the vertebra screws, position the latter must be oriented relative to the planar support.

The present invention is to design a corrective device for the spine, which will allow you to Orient the blocks of fixation relative to each other, in accordance with the treatment objectives, namely to correct scoliotic deformity of the spine, and enter the latches vertebra regardless of the location of the planes of the support block fixation of the vertebra.

The problem is solved in that in correcting device for the spinal column that contains the unit of fixation of the vertebra, is made of a support having longitudinal grooves in which it is established, by means of clamps clamps vertebra, and coupling elements, bearing is made of two bars connected by a shank with Central and lateral support elements, with openings in which are set ears, clamps and connecting elements.

It is advisable, for about the carry out in the form of a cylinder, one end of which is threaded and a nut, and the other cylindrical groove, the axis of which is perpendicular to the axis of the cylinder, each eyelet is provided with a cylindrical end, performed stepwise.

It is advisable, for ease of use clamps with fastening clamps vertebra, each clamp to provide a threaded part with a nut, conical head with a hole and flats on turnkey basis, with the axis of the head hole must be perpendicular to the axis of the threaded part of the clip.

In an embodiment of the correction device for the spine, allowing the correction of deformity, at least two blocks of fixation of the vertebra must be interconnected with each other can be moved, by means of connecting elements that are installed in the holes of the Central and lateral supporting elements and ears fixed in the holes of the Central and lateral supporting elements.

The present invention is illustrated in a similar description of a specific exemplary embodiment with reference to the accompanying diagrams, in which:

Fig. 1 depicts axonometry correcting device for the spine, is made according to Iago post, in the configuration with the connecting elements, the overall look.

Correcting device for the spinal column contains the unit of fixation of the vertebra, made of support (Fig. 1) having two strips 1, 2. Each of the latter provided with a shank 3, 4, 5, 6. Strap 1,2 have a longitudinal through grooves in which are installed the clamps 7, 8 by means of fixing elements 9, 10. Strips 1, 2 shank 3 and 4 are connected to the Central support element 11, which is supplied clamps 12, 13, 14 with fasteners, respectively 15, 16, 17 and the lug 18.

Strips 1 and 2 shanks 5 and 6 are connected, respectively, with lateral support elements 19 and 20. Each of the lateral supporting elements 19 and 20 are provided with clamps 21, 22 and 23, 24, respectively, of the fastening elements 25, 26 and 27, 28 and lugs 29, 30. Tacks 12, 13, 21, 22, 23, 24 and the ears 18, 29, 30 are installed in the Central and lateral supporting elements through holes made in them and having a perpendicular axis.

In addition, each of the tacks 12, 13, 21, 22, 23, 24 made in the form of a cylinder, one end of which is threaded fastening element in the form of nuts 15, 16, 17, 25, 26, 27, 28, and the other has a cylindrical groove, the axis of which is perpendicular to the axis of the cylinder of each of these vybavou part with a nut 9, 10 and the conical head 31, 32 having an aperture, the axis of which is perpendicular to the axis of the threaded part, and on the outer surface of each of the heads 31, 32 are made of the flats 33, 34 turnkey for their fastening to each plate 1 and 2.

To correct various types of spinal deformities each block fixation of the vertebra 35 (Fig. 2) are provided with tabs vertebra 36, 37 are interconnected with each other can be moved by means of the coupling elements 38, 39, 40, 41, 42, 43. The latter is in the form of threaded rods. In addition, the connecting elements 38, 39, 40 are installed in the Central holes 11 and the side 19, 20 poles by spacers 4, 45, 46, 47 and nuts 48, 49, 50, 51, and connecting elements 41, 42, 43 are installed in the holes of the lugs 18, 29, 30 and secured them with nuts, respectively, 52, 53, 54, 55, 56, 57.

Correcting device operates as follows.

After processing the surgical field into the legs through the open arches of the vertebrae from two sides enter the latches vertebra 36, 37. Each pair of tabs 36, 37 vertebra fix, in pairs on each of the supports 1, 2, made in the form of strips, by means of clamps 7 and 8 by means of the fastening elements 9 and 10 respectively. Then each block 35 Phi is the elements 38, 39, 40, 41, 42, 43, made in the form of threaded rods.

By means of fixing elements 48, 49, 50, 51, 52, 53, 54, 55, 56 create compression, bringing together support each other. Thus at the proximal ends of the latch 36, 37 vertebra, namely rods-screws create a distraction whereby carry out the correction of the kyphotic deformity of the spine.

Relaxing corresponding fixing, depending on layout, 48, 49, 50, 51, 52, 53, 54, 55, 56 elements inside and twirling appropriate of them Carouge, create a rapprochement between one ends of the supports 42 and the divergence of the other ends of the supports 1, 2. Thus produce the correction of scoliotic deformities of the spine.

The proposed device is used in the Department of vertebrology and neurosurgery RISC "RTO". The device is designed to perform the correction of kyphosis and scoliosis, rigidly locking the segments of the spine.

Furthermore, the design of each of the supports allows you to record the catches of the vertebra in the position which they occupy in space, after their introduction into the vertebra, orienting the plane of each support made in the form of strips parallel to the axis of the latch vertebra.

The proposed construction CLASS="ptx2">

1. Correcting device for the spinal column that contains the unit of fixation of the vertebra, is made of a support having longitudinal grooves in which are installed by means of clamps clamps vertebra, and coupling elements, wherein the bearing is made of two bars connected by a shaft with center and side support elements, with openings in which are set ears, clamps and connecting elements.

2. The device under item 1, characterized in that the tacks are made in the form of a cylinder, one end of which is threaded and a nut, and the other cylindrical groove, the axis of which is perpendicular to the axis of the cylinder, in addition, the eyelet provided with a cylindrical end, performed stepwise.

3. The device according to PP.1 and 2, characterized in that the retainer clips vertebra is provided with a threaded part with a nut and a tapered head with a hole and attened, with the axis of the head hole perpendicular to the axis of the threaded part of the clip.

4. The device under item 1, characterized in that at least two units of fixation of the vertebrae are interconnected with each other can be moved by means of connecting elements, installed in the CTE is about supporting elements.

 

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FIELD: medical engineering.

SUBSTANCE: device has reposition sliding bars having members for fixing bones and connecting unit. The connecting unit has at least one member for fixing bones, lead screws and rods. The connecting unit is combined from base and clamp member connected with hold-down screw allowing rotation. Radial corrugated elements are available on base and clamp sides facing each other. Holes are available in base and clamp casings for receiving the attached rods and rotatably anchored hold-down screws. Through holes are produced in reposition sliding bars having smooth internal surface for the rods and internal screw thread for holding lead screws.

EFFECT: enhanced effectiveness of treatment; accelerated treatment course.

9 cl, 25 dwg

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