CN211300274U

CN211300274U - Flexible fixing device of security backbone

Info

Publication number: CN211300274U
Application number: CN201921807312.8U
Authority: CN
Inventors: 庄寅; 刘向阳; 沈雄杰; 刘晓岚
Original assignee: Changzhou Dingjian Medical Appliance Co ltd
Current assignee: Changzhou Dingjian Medical Appliance Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-08-21
Anticipated expiration: 2029-10-25

Abstract

The utility model discloses a safety flexible spinal fixation device, which comprises a pedicle screw and a pedicle screw, wherein the pedicle screw is provided with a plurality of groups, the pedicle screw is connected with the pedicle screw through a connecting rod, the pedicle screw is provided with a plurality of groups, and the pedicle screw is connected with the pedicle screw through a connecting rod, the connecting rod is parallel to the connecting rod, a reinforcing mechanism is arranged between the connecting rod and the connecting rod, a steering mechanism is arranged on the connecting rod, the utility model discloses a fixing mechanism is arranged between the connecting rod and the connecting rod, a clamping seat is fixed on the connecting rod, the clamping seat is fixed by the fixing rod, when a human body moves, the distance between the connecting rod and the connecting rod is fixed by the reinforcing mechanism, the top ends of the first pedicle screw and the second pedicle screw cannot turn outwards, and the treatment effect is ensured.

Description

Flexible fixing device of security backbone

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a safety spinal column flexible fixing device.

Background

The spine is an indispensable part for supporting a human body, and is composed of a plurality of serially connected spinal joints, and if two adjacent spinal joints are broken or dislocated, the human body cannot walk, so that the plurality of spinal joints need to be connected into a whole.

At present, for unstable vertebral bodies after spinal trauma, spondylolisthesis, degenerative diseases and other single-segment or multi-segment fractures, a common treatment method is to install a spinal internal fixator at a spinal deformed position through surgery for correcting and supporting the spine, so as to help the spine recover functions or delay the disease deterioration. The fixator in the market is more in variety, but most of the fixator comprises pedicle screws, universal pedicle screws, connecting rods and other corresponding parts.

However, the existing spinal fixation devices suffer from the following disadvantages:

1. after the pedicle screws of the spine fixing device are nailed into the spine, when a human body is stressed to move, the pedicle screws on two sides of the spine are easy to turn outwards, so that the pedicle screws are easy to dislocate, and the later treatment and recovery are not facilitated.

2. The connecting rod of the existing spine fixing device adopts a linear type, and when the spine treatment is carried out and the pedicle screws are driven in a reversing manner, the existing spine fixing device cannot be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible fixing device of security backbone to after solving among the above-mentioned background art when backbone fixing device's pedicle of vertebral arch screw nail income backbone, during the activity of human atress, the pedicle of vertebral arch screw of backbone both sides takes place the situation of turning up to both sides easily, make pedicle of vertebral arch screw take place the dislocation phenomenon easily and be unfavorable for the treatment and the recovery in later stage, current backbone fixing device's connective bar adopts the linear type more, when carrying out the backbone treatment, when the pedicle of vertebral arch screw is gone into to the needs switching-over nail, the unable problem of realizing of current backbone fixing device.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flexible fixing device of security backbone, includes No. one pedicle of vertebral arch screw and No. two pedicle of vertebral arch screws, No. one pedicle of vertebral arch screw is equipped with the multiunit, and connects through the connective bar between the pedicle of vertebral arch screw, No. two pedicle of vertebral arch screws are equipped with the multiunit to and connect through No. two connective bars between No. two pedicle of vertebral arch screws, No. two connective bars and a connective bar are parallel to each other, be equipped with reinforcing mechanism between connective bar and No. two connective bars, be equipped with steering mechanism on No. two connective bars, and steering mechanism's end connection turns to pedicle of vertebral arch screw, a pedicle of vertebral arch screw includes screw, nail seat and jackscrew, the tip at the screw is fixed to the nail seat, the interlude hole female connection of nail seat has the jackscrew.

Preferably, the first pedicle screw, the second pedicle screw and the steering pedicle screw have the same structure.

Preferably, the steering mechanism comprises a steering connector and a steering rod, the steering connector is connected to the second connecting rod, the steering rod is connected to the side wall of the steering connector, and the tail end of the steering rod is inserted into a screw seat at the top end of the steering pedicle screw.

Preferably, the steering connector comprises a sleeve seat and a fastening bolt, a through hole is formed in the sleeve seat, the second connecting rod penetrates through the through hole of the sleeve seat, a fastening threaded hole is formed in the top end surface of the sleeve seat and is communicated with the through hole, a fastening bolt thread penetrates through the fastening threaded hole, and the tail end of the fastening bolt is arranged in the fastening threaded hole and is abutted to the second connecting rod in pressing contact with the fastening threaded hole.

Preferably, the reinforcing mechanism includes fastening bolt, dead lever and joint seat, the joint seat is equipped with two sets ofly, and the joint seat joint is on a connective bar and No. two connective bars respectively, the dead lever alternates between two sets of joint seats, it is fixed through the fastening bolt between dead lever and the joint seat.

Preferably, the fixed rod is perpendicular to the first connecting rod and the second connecting rod.

The utility model provides a flexible fixing device of security backbone possesses following beneficial effect:

(1) the utility model discloses a set up reinforcing mechanism between a connective bar of two sets of parallels and No. two connective bars, during the use, fix the joint seat on a connective bar and No. two connective bars, it is fixed with the joint seat to recycle the dead lever, and when human activity, it is fixed to utilize reinforcing mechanism with the distance between a connective bar and No. two connective bars for the situation that turns up can not take place on the pedicle of vertebral arch screw top of connecting on connective bar and No. two connective bars, guarantees treatment.

(2) The utility model discloses a set up steering mechanism on connective bar or No. two connective bars, utilize steering mechanism to connect and turn to pedicle of vertebral arch screw, during the use, overlap steering mechanism's the connector that turns to on the connective bar, will turn to pedicle of vertebral arch screw connection on steering mechanism's the steering bar to the realization turns to and the purpose of switching-over.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the steering connector of the present invention.

In the figure: 1. a pedicle screw; 2. a screw; 3. a nail seat; 4. carrying out top thread; 5. a first connecting rod; 6. fastening bolts; 7. fixing the rod; 8. a steering connector; 9. a steering rod; 10. turning pedicle screws; 11. a second connecting rod; 12. a clamping seat; 13. a second pedicle screw; 14. a cannula holder; 15. fastening the threaded hole; 16. and (6) fixing the bolt.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-2, the utility model provides a technical solution: the utility model provides a flexible fixing device of security backbone, includes No. one pedicle of vertebral arch screw 1 and No. two pedicle of vertebral arch screws 13, No. one pedicle of vertebral arch screw 1 is equipped with the multiunit, and connects through connective bar 5 between No. one pedicle of vertebral arch screw 1, No. two pedicle of vertebral arch screws 13 are equipped with the multiunit to and connect through No. two connective bars 11 between No. two pedicle of vertebral arch screws 13, No. two connective bars 11 and a connective bar 5 are parallel to each other, be equipped with reinforcing mechanism between connective bar 5 and No. two connective bars 11, be equipped with steering mechanism on No. two connective bars 11, and steering mechanism's trailing end connection steering screw 10, No. one pedicle of vertebral arch screws 1 includes screw 2, nail seat 3 and jackscrew 4, nail seat 3 is fixed at the tip of screw 2, the through-hole female connection of nail seat 3 has jackscrew 4.

Preferably, the first pedicle screw 1, the second pedicle screw 13 and the turning pedicle screw 10 have the same structure, so that the first pedicle screw 1, the second pedicle screw 13 and the turning pedicle screw 10 are fixed in the same way.

Preferably, the steering mechanism comprises a steering connector 8 and a steering rod 9, the steering connector 8 is connected to a second connecting rod 11, the steering rod 9 is connected to the side wall of the steering connector 8, the tail end of the steering rod 9 is inserted into the nail seat 3 at the top end of the steering pedicle screw 10, and the steering pedicle screw 10 is connected with the connecting rod while steering is completed by the steering mechanism.

Preferably, the steering connector 8 is composed of a sleeve seat 14 and a fixing bolt 16, a through hole is formed in the sleeve seat 14, the second connecting rod 11 penetrates through the through hole of the sleeve seat 14, a fastening threaded hole 15 is formed in the top end surface of the sleeve seat 14, the fastening threaded hole 15 is communicated with the through hole, the fixing bolt 16 penetrates through the fastening threaded hole 15 in a threaded manner, the tail end of the fixing bolt 16 is placed in the fastening threaded hole 15 and is in abutting contact with the second connecting rod 11, the sleeve seat 14 is inserted into the end portion of the connecting rod, and then the fixing bolt 16 is rotated to enable the fixing bolt 16 to press the connecting rod, so that the steering connector 8 is fixed on the connecting rod.

Preferably, reinforcing mechanism includes fastening bolt 6, dead lever 7 and joint seat 12, joint seat 12 is equipped with two sets ofly, and joint seat 12 joint is on connective bar 5 and No. two connective bars 11 respectively, dead lever 7 alternates between two sets of joint seats 12, it is fixed through fastening bolt 6 between dead lever 7 and the joint seat 12, utilizes reinforcing mechanism for the distance between connective bar 5 and No. two connective bars 11 is fixed, and is difficult to take place to turn.

Preferably, the fixing rod 7 is perpendicular to the first connecting rod 5 and the second connecting rod 11, so that the parallel state between the first connecting rod 5 and the second connecting rod 11 is always kept under the action of the fixing rod 7.

It should be noted that, in operation, a safe flexible spinal fixation device is provided, wherein a first pedicle screw 1 is nailed on one side of the spinal column according to actual requirements, a second pedicle screw 13 is nailed on the other side of the spinal column, two groups of clamping seats 12 of a reinforcement mechanism are clamped on a first connecting rod 5 and a second connecting rod 11, a fixed rod 7 penetrates through the clamping seats 12, then a fastening bolt 6 is rotated to fix the fixed rod 7 on the clamping seats 12, the reinforcement mechanism is utilized to fix the frontal distance between the two groups of parallel first connecting rods 5 and second connecting rods 11, when a human body moves, the first pedicle screw 1 and the second pedicle screw 13 are stressed, under the action of the fixed rod 7 of the reinforcement mechanism, the distance between the first connecting rod 5 and the second connecting rod 11 cannot change, and the top end of the pedicle screw connected on the first connecting rod 5 and the second connecting rod 11 cannot turn outwards, guarantee the treatment, when needs turn to, with the steering mechanism turn to 8 cover on the connective bar that need turn to one side, after the suit, rotate the gim peg 16 that turns to connector 8, make gim peg 16 move down and arrange in the sleeve pipe seat 14 perforation of turning to connector 8, and support and press and fix the connective bar, then install the nail seat 3 that turns to pedicle of vertebral arch screw 10 top on turning to the stick 9, it can fix to rotate jackscrew 4, utilize steering mechanism can realize the purpose that turns to when the backbone operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flexible fixing device of security backbone, includes No. one pedicle of vertebral arch screw (1) and No. two pedicle of vertebral arch screws (13), its characterized in that: no. one pedicle of vertebral arch screw (1) is equipped with the multiunit, and connects through connective bar (5) between No. one pedicle of vertebral arch screw (1), No. two pedicle of vertebral arch screws (13) are equipped with the multiunit to and connect through connective bar (11) No. two between No. two pedicle of vertebral arch screws (13), No. two connective bar (11) and connective bar (5) are parallel to each other, be equipped with reinforcing mechanism between connective bar (5) and No. two connective bar (11), be equipped with steering mechanism on No. two connective bar (11), and steering mechanism's trailing end connection turns to pedicle of vertebral arch screw (10), No. one pedicle of vertebral arch screw (1) includes screw (2), nail seat (3) and jackscrew (4), the tip at screw (2) is fixed in nail seat (3), the jack female connection of nail seat (3) has jackscrew (4).

2. A safety spinal flexible fixation device according to claim 1, wherein: the first pedicle screw (1), the second pedicle screw (13) and the steering pedicle screw (10) have the same structure.

3. A safety spinal flexible fixation device according to claim 1, wherein: the steering mechanism comprises a steering connector (8) and a steering rod (9), the steering connector (8) is connected to a second connecting rod (11), the steering rod (9) is connected to the side wall of the steering connector (8), and the tail end of the steering rod (9) is inserted into a nail seat (3) at the top end of a steering pedicle screw (10).

4. A safety spinal flexible fixation device according to claim 3, wherein: the steering connector (8) is composed of a sleeve seat (14) and a fixing bolt (16), a through hole is formed in the sleeve seat (14), the second connecting rod (11) penetrates through the through hole of the sleeve seat (14), a fastening threaded hole (15) is formed in the top end surface of the sleeve seat (14), the fastening threaded hole (15) is communicated with the through hole, the fixing bolt (16) penetrates through the fastening threaded hole (15) in a threaded mode, and the tail end of the fixing bolt (16) is arranged in the fastening threaded hole (15) and is in abutting contact with the second connecting rod (11).

5. A safety spinal flexible fixation device according to claim 1, wherein: the reinforcing mechanism comprises a fastening bolt (6), a fixing rod (7) and a clamping seat (12), the clamping seat (12) is provided with two groups, the clamping seat (12) is respectively connected with a first connecting rod (5) and a second connecting rod (11), the fixing rod (7) is inserted between the two groups of clamping seats (12), and the fixing rod (7) and the clamping seat (12) are fixed through the fastening bolt (6).

6. A safety spinal flexible fixation device according to claim 5, wherein: the fixed rod (7) is vertical to the first connecting rod (5) and the second connecting rod (11).