CN2899739Y

CN2899739Y - Shrapnel type artificial intervertebral disc

Info

Publication number: CN2899739Y
Application number: CNU2006201121428U
Authority: CN
Inventors: 王超然
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-21
Filing date: 2006-04-21
Publication date: 2007-05-16
Anticipated expiration: 2016-04-21

Abstract

The utility model discloses a splinter-type artificial intervertebral disc, in particular to an artificial intervertebral disc that is applied between the upper and lower adjacent vertebral columns of the human body, which comprises a horseshoe splinter, a plurality of barbs respectively arranged at the upper and lower sides of the splinter that are corresponding to the upper and lower vertebral columns, an upper and a lower fixed plates that are respectively arranged at the two terminal heads of the splinter. The two ends of the splinter can be stopped between the lower side of the upper vertebral column and the upper side of the lower vertebral column through each barb and fixed plates so that the horseshoe splinter can be arranged between the upper and lower vertebral columns, while an elastomer with damping function is arranged between the upper and the lower fixed plates and can be arranged between the upper and lower vertebral columns through the fixed plates. The utility model is not only convenient for using but also quite elastic artificial intervertebral disc can be applied to match with the actuation of the other normal intervertebral disc so as to maintain partial functions of the joint, to prevent the joint from aging in advance and to further prevent the upper and lower vertebrate joints from degradation in advance for excessive use.

Description

The spring-piece type artificial intervertebral disk

Technical field

This utility model especially refers to a kind of intervertebral disc place rubber-like artificial intervertebral disc device that is used in the upper and lower vertebra of human body about a kind of spring-piece type artificial intervertebral disk.

Background technology

Human body is that each the position skeleton by its inside is supported, so that the muscle on the human body, blood vessel can be because of the effect of gravity storehouse together, in the skeleton of human body, vertebra is most important position, it extends downward a burst portion by the medulla oblongata position, in vertebra, have most neural, and form by most vertebra joint bone serial connections, the adjacent intervertebral disc that is formed with between vertebra up and down, intervertebral disc has suitable elasticity, with as the cushioning effect between vertebrae up and down, when the intervertebral disc of any joint wherein produces pathological changes or when aging, can cause human body in producing inconvenience in the action, and the intervertebral disc density phenomenon that worsens or change, the most normal spine's (lumbar vertebra) that betides down is that neck (cervical vertebra) is located again.

No. 83107875, No. 343916 patent of invention case of bulletin are invented in Taiwan, are a kind of artificial intervertebral disc, and it mainly includes:

First member, for engagement first vertebra, it has first articular surface, first rear end and first front end, this two end defines a horizontal center line betwixt, and this center line distance first rear end and first front end are equidistant;

Second member, for engagement second vertebra, its have in the face of the second joint face of first articular surface and with corresponding first rear end and first front end, second rear end and front end arranged side by side; And

Ball-and-socket joint, be positioned between first and second articular surface of first and second member and the position between the center line and first rear end, this ball-and-socket joint be configured to permission between first member and second member around the first axle that is parallel to horizontal center line and perpendicular to first axle and be positioned at prominent planar second axis of vertebra sagittal and do and relatively rotate, wherein one of first and second articular surface oblique from ball-and-socket joint tiltedly towards separately first or second joint face and fully around this joint, and that another person of first and second articular surface is roughly around in this joint is smooth;

But its shortcoming is:

One, only manually to be positioned between the upper and lower vertebra, because of there is no the elastic buffer design of original human intervertebral disc, original joint will lose all pooling features to intervertebral disc, can't cooperate other normal intervertebral disc to cooperate running and do sth. in advance and wear out.

Two, ineffective because of original pass knot, will make that joint closes the function that knot must be born original joint up and down, and make that saving spinal joint up and down does sth. in advance to degenerate because of the transition degree uses.

Three, human organ can be along with gradually aging of age, and aforesaid artificial intervertebral disk can't cooperate patient's pathological changes situation or because of the use that cooperatively interacts of the disc degeneration degree at age.

Four, artificial intervertebral disk there is no the design that prevents that human vertebra from excessively leaning forward, and necessity of being improved is arranged in fact.

The utility model content

In view of this this creator is to set about researching and developing, and understands the variety of problems that produces in use in the hope of solving the above-mentioned person of commonly using, and through constantly test and effort, develops this utility model finally.

Main purpose of the present utility model is to provide a kind of spring-piece type artificial intervertebral disk, to improve the above-mentioned problem that exists, employed tool Flexible Design artificial intervertebral disk in this utility model, can cooperate running with other normal intervertebral disc, keep the partial function in original joint between vertebra up and down, prevent that the joint is aging ahead of time, can prevent that further vertebra from excessively leaning forward.

In order to reach above-mentioned utility model purpose, this utility model takes following technological means to be reached, and this utility model includes:

Be the horseshoe-shaped shell fragment of side, upper and lower side in shell fragment is respectively equipped with a plurality of overhead kicks with respect to upper and lower vertebra end, on two terminations of shell fragment upper and lower stator is set respectively, distinguish clip in epipyramis downside and lower pyramidal upside by each overhead kick and stator, the horseshoe-shaped shell fragment of side can be arranged between upper and lower vertebra, in order to be used as artificial intervertebral disk.

Another kind of embodiment of the present utility model can be respectively equipped with screw on upper and lower stator, be screwed into the ora terminalis that screw can be fixed in upper and lower stator spiral shell upper and lower vertebra respectively by screw, strengthens the fixing of this utility model and upper and lower vertebra.

Another embodiment of the present utility model can be provided with the elastomer just like artificial ligament between upper and lower stator, the elastomer upper and lower end parts is provided with perforation, by screw on the upper and lower stator, elastomer is fixed in the ora terminalis of upper and lower vertebra with screw.

Innovative design provided by the utility model, the concrete effect enhancement that can obtain comprises:

One, the elastic buffer of this utility model artificial intervertebral disk design makes the original joint of patient can not lose pooling feature, can cooperate running with other normal intervertebral disc of patient and use, and prevents that the joint is aging ahead of time.

Two, alleviate because of original pass knot ineffectively, will make that joint closes the function that knot must be born original joint up and down, and make that saving spinal joint up and down does sth. in advance degeneration because of excessively using.

Three, quite convenient in the creation assembling, can and cooperate patient's pathological changes situation according to the sufferer age, select the use that cooperatively interacts of suitable elastic this utility model.

Four, tool prevents the design that human vertebra excessively leans forward, and the vertebra up and down that can prevent pathological changes excessively opens.

Description of drawings

Fig. 1 is first kind of embodiment stereo appearance figure of the present utility model.

Fig. 2 is the side plan view of Fig. 1.

Fig. 3 is that first kind of embodiment is installed in the profile that uses on the human body.

Fig. 4 is the stereo appearance figure of second kind of embodiment of the present utility model.

Fig. 5 is the stereo appearance figure of the third embodiment of the present utility model.

Fig. 6 is installed in the profile that uses on the human body for the third embodiment.

Fig. 7 is the stereo appearance figure of the 4th kind of embodiment of the present utility model.

The primary clustering symbol description

11 overhead kicks of 10 shell fragments

11A overhead kick 12 overhead kicks

The 12A overhead kick

Stator 21 screws on 20

30 times stators of 21A screw

31 screw 31A screws

40 screws, 50 epipyramises

60 times vertebra 70 elastomers

The specific embodiment

Please referring to shown in Fig. 1,2, be first kind of a kind of spring-piece type artificial intervertebral disk of this utility model

Embodiment includes:

One outward appearance is similar in appearance to horseshoe-shaped shell fragment 10, the curved arc degree that the upper and lower side of shell fragment 10 has matches with the radian of the upper and lower end face depression of upper and lower vertebra, the upper and lower side of shell fragment 10 is respectively equipped with a plurality of

overhead kicks

11,12 with respect to upper and lower vertebra end, the upper and lower side head of shell fragment 10 is respectively equipped with the

stator

20,30 that reaches down direction up, and upper and

lower stator

20,30 is provided with

screw

21,31;

Two screws 40, its external diameter matches with the diameter that upper and

lower stator

20,30 is provided with

screw

21,31;

As shown in Figure 3, when sufferer is installed this utility model when pathological changes or aged intervertebral disc place take place, shell fragment 10 promptly is installed between upper and lower relative epipyramis 50, the following vertebra 60, and with each

overhead kick

11,12 respectively clips in vertebra 50 downsides and vertebra 60 upsides, be screwed into each

screw

21,31 by screw 40, upper and

lower stator

20,30 can be fixed at epipyramis 50 and following vertebra 60 ora terminalis places respectively, and produce suitable elasticity, to replace the elastic intervertebral disc of the original tool of patient with shell fragment 10;

Therefore, having other normal intervertebral disc of suitable elastic this utility model and patient cooperates and uses, make to be equiped with original up and down intervertebral joint of the present utility model and still can to cooperate the activity of this utility model elasticity, keep the partial function in this joint joint, prevent that the joint from wearing out ahead of time; And thereby can alleviate and save spinal joint up and down because of bearing the partial function in this joint joint, degenerate and excessively use ahead of time.

Please refer to as shown in Figure 4, be another embodiment of the present utility model, it includes:

The shell fragment 10 that one outward appearance is identical with Fig. 1, the curved arc degree of shell fragment 10 cooperates with the radian of the upper and lower end face depression of upper and lower vertebra, the upper and lower side of shell fragment 10 is respectively equipped with a plurality of

overhead kick

11A, 12A with respect to upper and lower vertebra end, shell fragment 10 is provided with the

stator

20,30 that reaches down direction up, and upper and

lower stator

20,30 is provided with

plural screw

21A, 31A;

Plural number screw 40, its external diameter matches with the diameter that upper and

lower stator

20,30 is provided with

screw

21A, 31A;

This embodiment and a last embodiment different be in: overhead kick 11A, the 12A of shell fragment 10A on same row has most kenels, go up to having the kenel of two screws 21 in last stator 20A, following stator 30A is also for having the kenel of two screws 31, after it is installed in human body, when using, equally, can reach the purpose that is same as aforementioned utility model.

Please refer to again as shown in Fig. 5,6, be another embodiment of the present utility model, include:

One as shown in Figure 1 shell fragment 10, shell fragment 10 is provided with

overhead kick

11,12 and

screw

21,31 is arranged;

A sheet of elastomer 70, elastomer 70 upper and lower sides are provided with the perforation 71,72 that screw 21,31 matches, and this elastomer 70 has as the elasticity as the artificial ligament, has reverse damping action when being stretched;

The screw 40 that two external diameters and screw 21,31 and 71,72 the diameter of boring a hole match;

When sufferer is installed this utility model of this embodiment when pathological changes or aged intervertebral disc place take place, be screwed in regular turn by screw 40 and respectively bore a hole 71,72 and screw 21,31, elastomer 70, upper and

lower stator

20,30 can be fixed at epipyramis 50 and following vertebra 60 ora terminalis places respectively, when human vertebra excessively turns forward, elastomer 70 can be stretched with user epipyramis 50 and following vertebra 60 amplitudes of opening, and producing the damping action of amplitude that epipyramis 50 and following vertebra 60 are opened, restriction epipyramis 50 and following vertebra 60 open amplitude;

Please refer to the another kind of embodiment structure of this utility model shown in Fig. 7 again, include:

The shell fragment 10 that one outward appearance is identical with Fig. 4, a plurality of

overhead kick

11A, 12A;

During use, the shell fragment 10 of present embodiment is inserted 60 of the sufferer epipyramis 50 of special pathological changes and following vertebras, against the frictional force of 60 of a plurality of

overhead kick

11A, 12A and epipyramis 50 and following vertebras, must not fix with screw, can reach the utility model purpose that is same as earlier figures 1 and Fig. 4 equally.

The above, it only is preferred embodiment of the present utility model, be not that this utility model is done any pro forma restriction, have in the technical field under any and know the knowledgeable usually, if in the scope that does not break away from technical characterictic that this utility model is carried, utilize technology contents that this utility model discloses to do the local equivalent embodiment that changes or modify, and do not break away from technical characterictic content of the present utility model, all still belong in the scope of this utility model technical characterictic.

Claims

1, a kind of spring-piece type artificial intervertebral disk for being used in adjacent epipyramis of human body and following intervertebral artificial intervertebral disk, is characterized in that: include:

One shell fragment, the upper and lower side of shell fragment is respectively arranged with a plurality of overhead kicks; Two terminations of shell fragment are formed with respectively towards epipyramis and down the last stator and the last stator down of vertebra direction.

2, spring-piece type artificial intervertebral disk as claimed in claim 1, it is characterized in that: shell fragment wherein is the shape of a hoof.

3, spring-piece type artificial intervertebral disk as claimed in claim 1 is characterized in that: wherein go up stator and be respectively equipped with screw with following stator, this screw can wear for screw.

4, as claim 1,2 or 3 described spring-piece type artificial intervertebral disks, it is characterized in that: further be provided with an elastomer, this elastomer shape is a lamellar.

5, spring-piece type artificial intervertebral disk as claimed in claim 4, it is characterized in that: wherein the elastomer upper and lower side is provided with perforation.

6, spring-piece type artificial intervertebral disk as claimed in claim 5 is characterized in that: wherein the perforation of elastomer upper and lower side is corresponding with the upper and lower stator screw of shell fragment.

7, spring-piece type artificial intervertebral disk as claimed in claim 6 is characterized in that: wherein the elastomer upper and lower side is bored a hole and is gone up stator and can wear for screw with following stator screw.