CN209422086U - A kind of correction screw assembly for scoliosis - Google Patents

Abstract

The utility model discloses a kind of correction screw assemblies for scoliosis, comprising: fixing bolt, gliding groove, upper hopper chute, outer-hexagonal bolt, interior hexagonal bolt, limiting slot, work shape slot, screw rod, tapping screw；When use, the fixing bolt is driven on the bone structure of the backbone of patient using dedicated upper followed closely, ready slider bar is placed on the fixing bolt and is offered in U-shaped breach, the outer-hexagonal bolt is threadedly attached in inside the fixing bolt again, interior hexagonal bolt is turned by tool again, the interior hexagonal bolt can rotate, the screw rod can move down and then upper hopper chute can move down, upper hopper chute and gliding groove is set to limit slider bar, it is reserved with the gap of sliding rod motion simultaneously, it will be moved to same trends of straight line between screw assembly described in reinforcing bar when stretching, and then play the purpose of correction scoliosis；The beneficial effects of the utility model are: it is time saving and energy saving, it is convenient and efficient.

Description

A kind of correction screw assembly for scoliosis

Technical field

The utility model relates to arrive medical surgery field of tool, specifically a kind of correction screw group for scoliosis Part.

Background technique

Correction screw assembly can be all usually applied to during scoliosis surgery, hand is being carried out to scoliosis patient When art, it usually can all apply to sliding slot and limit clamping is carried out to slider bar, but due to sliding slot compact, make to need in cooperation Sliding slot is placed in using dedicated tool, is squeezed into the fixing bolt of vertebrae, it is time-consuming and laborious.

Utility model content

The purpose of this utility model is to provide a kind of correction screw assemblies for scoliosis, to solve above-mentioned background The problem of being previously mentioned in technology.

To achieve the above object, the utility model provides the following technical solutions:

A kind of correction screw assembly for scoliosis, comprising: fixing bolt, gliding groove, upper hopper chute, outer-hexagonal bolt, interior Hexagonal bolt, limiting slot, work shape slot, screw rod, tapping screw；A kind of correction screw assembly for scoliosis, main body Including fixing bolt, outer-hexagonal bolt, interior hexagonal bolt, an external screw thread is arranged at outer-hexagonal bolt lower part, and the top of the fixing bolt is equipped with Internal screw thread corresponding to external screw thread with outer-hexagonal bolt lower part, the outer-hexagonal bolt, interior hexagonal bolt are upper coarse and lower fine structure, And the interior hexagonal bolt is nested in inside the outer-hexagonal bolt, there is a work shape slot in the outer surface of outer-hexagonal bolt lower part, described Interior hexagonal bolt is equipped with convex structure, is nested in the work shape slot.

As a further solution of the present invention: being hollow structure in the middle part of the interior hexagonal bolt, in the hollow structure Surface is equipped with screw thread, and the screw rod is fixedly connected with one below the screw rod by being threadedly engaged inside the interior hexagonal bolt Upper hopper chute, the upper hopper chute and gliding groove are symmetrical structure；And in the lower part of the upper hopper chute, the top of gliding groove is equipped with semicircle V notch v.

As a further solution of the present invention: by Liu Ding connection tapping screw below the fixing bolt, it is described oneself Screw is attacked equipped with pointed structures and tapping screw thread, guarantees that the tapping screw being capable of flexible rotating in fixing bolt.

As a further solution of the present invention: offering U-shaped breach on the fixing bolt, it is inside the fixing bolt Hollow structure, the fixing bolt inside are equipped with limiting slot, and the gliding groove cooperates inside the limiting slot, the limiting slot The transversal size of size and the size of upper hopper chute and gliding groove are transversal in the same size, and the horizontal space of limiting slot is made to be merely able to receiving one A gliding groove, and gliding groove will not be flipped and move with horizontal position.

In use, being driven into the fixing bolt on the bone structure of the backbone of patient using dedicated upper followed closely, will be ready to Slider bar be placed on the fixing bolt and offer in U-shaped breach, then the outer-hexagonal bolt is threadedly attached in described Inside fixing bolt, then interior hexagonal bolt turned by tool, the interior hexagonal bolt can rotate, because interior hexagonal bolt is limited by work shape slot Firmly, at the same the screw rod pass through be threadedly engaged the interior hexagonal bolt inside and the upper hopper chute limit inside limiting slot, Guarantee that upper hopper chute will not rotate, so the screw rod can move down and then upper hopper chute can move down with the rotation of interior hexagonal bolt, So that upper hopper chute and gliding groove is limited slider bar, at the same be reserved with sliding rod motion gap, when stretch reinforcing bar described in screw It will be moved to same trends of straight line between component, and then play the purpose of correction scoliosis.

Compared with prior art, the utility model has the beneficial effects that

Time saving and energy saving, convenient and efficient: upper hopper chute and hexagon socket head cap screw are movably attached to together by the utility model, make to perform the operation In the process, without requiring efforts specifically for the placement in sliding slot, so it is time saving and energy saving.

Detailed description of the invention

Fig. 1 is a kind of stereoscopic schematic diagram of correction screw assembly for scoliosis.

Fig. 2 is a kind of internal cross section schematic diagram of correction screw assembly for scoliosis.

In figure: 1- fixing bolt, 2- gliding groove, 3- upper hopper chute, 4- outer-hexagonal bolt, hexagonal bolt, 6- limiting slot, 7- work shape in 5- Slot, 8- screw rod, 9- tapping screw.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment；Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1~2, in the utility model embodiment, a kind of correction screw assembly for scoliosis, comprising: Fixing bolt 1, gliding groove 2, upper hopper chute 3, outer-hexagonal bolt 4, interior hexagonal bolt 5, limiting slot 6, work shape slot 7, screw rod 8, tapping screw 9； A kind of correction screw assembly for scoliosis, main body include fixing bolt 1, outer-hexagonal bolt 4, interior hexagonal bolt 5, described One external screw thread is arranged at 4 lower part of outer-hexagonal bolt, and the top of the fixing bolt 1 is equipped with corresponding to the external screw thread with 4 lower part of outer-hexagonal bolt Internal screw thread, the outer-hexagonal bolt 4, interior hexagonal bolt 5 are upper coarse and lower fine structure, and the interior hexagonal bolt 5 is nested in outside described Inside hexagonal bolt 4, there is a work shape slot 7 in the outer surface of 4 lower part of outer-hexagonal bolt, and the interior hexagonal bolt 5 is equipped with convex structure, It is nested in the work shape slot 7.

It is hollow structure in the middle part of the interior hexagonal bolt 5, the hollow structure inner surface is equipped with screw thread, and the screw rod 8 passes through It is threadedly engaged inside the interior hexagonal bolt 5, a upper hopper chute 3 is fixedly connected with below the screw rod 8, the upper hopper chute 3 is under Sliding slot 2 is symmetrical structure；And in the lower part of the upper hopper chute 3, the top of gliding groove 2 is equipped with semicircular indentations.

By Liu Ding connection tapping screw 9 below the fixing bolt 1, the tapping screw 9 is equipped with pointed structures and certainly Tapping guarantees that the tapping screw 9 being capable of flexible rotating in fixing bolt 1.

It offers U-shaped breach on the fixing bolt 1, is hollow structure inside the fixing bolt 1, inside the fixing bolt 1 Equipped with limiting slot 6, the cooperation of gliding groove 2 is inside the limiting slot 6, the transversal size of size and upper cunning of the limiting slot 6 Slot 3 and the size of gliding groove 2 are transversal in the same size, make the horizontal space of limiting slot 6 be merely able to accommodate a gliding groove 2, and under Sliding slot 2 will not be flipped and move with horizontal position.

In use, will be ready to using on the dedicated upper bone structure for having followed closely the backbone that the fixing bolt 1 is driven into patient Slider bar be placed on the fixing bolt 1 and offer in U-shaped breach, then the outer-hexagonal bolt 4 is threadedly attached in institute It states inside fixing bolt 1, then interior hexagonal bolt 5 is turned by tool, the interior hexagonal bolt 5 can rotate, because interior hexagonal bolt 5 is by work shape Slot 7 limits, at the same the screw rod 8 pass through be threadedly engaged the interior hexagonal bolt 5 inside and the upper hopper chute 3 limit limiting Inside the slot 6 of position, guarantee that upper hopper chute 3 will not rotate, so the screw rod 8 can move down in turn with the rotation of interior hexagonal bolt 5 Upper hopper chute 3 can move down, and so that upper hopper chute 3 and gliding groove 2 is limited slider bar, while being reserved with slider bar

The gap of movement will move, Jin Erqi when stretching between screw assembly described in reinforcing bar to same trends of straight line To the purpose of correction scoliosis.

The working principle of the utility model is: in use, the fixing bolt is driven into patient's using dedicated upper followed closely On the bone structure of backbone, ready slider bar is placed on the fixing bolt and is offered in U-shaped breach, then will described outer six Keratotic plug is threadedly attached in inside the fixing bolt, then turns interior hexagonal bolt by tool, and the interior hexagonal bolt can rotate, because Limited for interior hexagonal bolt by work shape slot, at the same the screw rod pass through be threadedly engaged the interior hexagonal bolt inside and it is described on Sliding slot limits inside limiting slot, guarantees that upper hopper chute will not rotate, so with the rotation of interior hexagonal bolt, the screw rod meeting It moves down and then upper hopper chute can move down, upper hopper chute and gliding groove is made to limit slider bar, while being reserved with the gap of sliding rod motion, It will be moved to same trends of straight line between screw assembly described in reinforcing bar when stretching, and then play the mesh of correction scoliosis 's.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type；Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein；It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (4)

1. a kind of correction screw assembly for scoliosis, comprising: fixing bolt (1), gliding groove (2), upper hopper chute (3), outer six Keratotic plug (4), interior hexagonal bolt (5), limiting slot (6), work shape slot (7), screw rod (8), tapping screw (9)；It is characterized by: described A kind of correction screw assembly for scoliosis, main body include fixing bolt (1), outer-hexagonal bolt (4), interior hexagonal bolt (5), described One external screw thread is arranged at outer-hexagonal bolt (4) lower part, and the top of the fixing bolt (1) is equipped with the external screw thread institute with outer-hexagonal bolt (4) lower part Corresponding internal screw thread, the outer-hexagonal bolt (4), interior hexagonal bolt (5) are upper coarse and lower fine structure, and the interior hexagonal bolt (5) It is internal to be nested in the outer-hexagonal bolt (4), there are a work shape slot (7), the interior hexagonal in the outer surface of outer-hexagonal bolt (4) lower part Bolt (5) is equipped with convex structure, is nested in the work shape slot (7).

2. a kind of correction screw assembly for scoliosis according to claim 1, it is characterised in that: the interior hexagonal It is hollow structure in the middle part of bolt (5), the hollow structure inner surface is equipped with screw thread, and the screw rod (8) is by being threadedly engaged described Interior hexagonal bolt (5) is internal, is fixedly connected with a upper hopper chute (3) below the screw rod (8), the upper hopper chute (3) and gliding groove (2) For symmetrical structure；And in the lower part of the upper hopper chute (3), the top of gliding groove (2) is equipped with semicircular indentations.

3. a kind of correction screw assembly for scoliosis according to claim 1, it is characterised in that: the fixing bolt (1) lower section is equipped with pointed structures and tapping screw thread by Liu Ding connection tapping screw (9), the tapping screw (9), guarantees institute Stating tapping screw (9) being capable of flexible rotating in fixing bolt (1).

4. a kind of correction screw assembly for scoliosis according to claim 1, it is characterised in that: the fixing bolt (1) U-shaped breach is offered on, is hollow structure inside the fixing bolt (1), is equipped with limiting slot inside the fixing bolt (1) (6), gliding groove (2) cooperation is internal in the limiting slot (6), the transversal size of size and upper hopper chute of the limiting slot (6) (3) transversal in the same size with the size of gliding groove (2), make the horizontal space of limiting slot (6) be merely able to accommodate a gliding groove (2), and gliding groove (2) will not be flipped and move with horizontal position.