CN101879087A

CN101879087A - Intervertebral fixer

Info

Publication number: CN101879087A
Application number: CN2009101366264A
Authority: CN
Inventors: 叶安时
Original assignee: BAONAN BIOTECHNOLOGY Co Ltd
Current assignee: BAONAN BIOTECHNOLOGY Co Ltd
Priority date: 2009-05-08
Filing date: 2009-05-08
Publication date: 2010-11-10

Abstract

The invention discloses an intervertebral fixer, which comprises a board body and a main body, wherein the board body is provided with at least one bending part which is slightly thinner than the board body and a plurality of lug parts; the radian of the board body of the intervertebral fixer can be elastically regulated by the bending part; and the lug part on the board body and the other lug part can be elastically regulated and attached to two vertebral bodies. Therefore, the Intervertebral fixer is in full fit with the physiological status of the radians of cervical vertebrae of each patient to further solve the problems of the protrusion of the conventional intervertebral fixer after operation, various troubles and inconvenience caused to the patients needing operation again, and the like, and prevent locked components locked on the conventional intervertebral fixer from being loosened.

Description

Intervertebral fixer

Technical field

The present invention is about a kind of intervertebral fixer, especially refer to that its plate body of an intervertebral fixer is provided with at least one kink, the thickness of this at least one kink is slightly thinner than the thickness of this plate body and these a plurality of ears, allows this intervertebral fixer elasticity adjust its radian but see through this kink.

Background technology

Human health is supported by each position skeleton of inside, so that muscle on the human body and blood vessel can be because of the effect of gravity storehouse together, and in the skeleton of human body, be most important position with vertebra, it extends downward a burst portion from brain, in vertebra, contain most neural, and form by a plurality of vertebra joint bone serial connections, if wherein arbitrary vertebral body produces displacement, just can cause human body inconvenience in the action, if it is serious that vertebral body produces displacement, what can cause can't taking action throughout one's life is sorry.

In vertebra, be most fragile and very thin with the cervical vertebra of human cervical region, the structure at this position is identical with the spinal structure at human back, and just size is less, and also better fragility.

General vertebra joint bone employed existing holder when carrying out the displacement rectification, fix though can provide to correct, but the radian of everyone cervical vertebra joint bone is in different size, sufferer use existing holder correct fixing after, promptly might protrude or be locked in the situation that the locked assembly on the existing intervertebral fixer gets loose in that existing intervertebral fixer takes place after the operation.

Referring to Fig. 1, schematic perspective view for existing intervertebral fixer 1, this intervertebral fixer 1 is integrally formed by a plate body 11 and a body 12, one of this plate body 11 distolateral lug 111 that outwards extends in parallel wherein, offer a hole 1110 on this lug 111, and outside the other end side direction of this plate body 11, extend in parallel another lug 112, offer another hole 1120 on this another lug 112; And be provided with a body 12 in the extension of a side of this plate body 11, make this body 12 present integrally formed with this plate body 11, and be respectively equipped with a plurality of engaging tooths 121,122 in the end face and the bottom surface of this body 12, these engaging tooths 121,122 are the contact surface (not shown) between difference interlock two body of cervical vertebra, and with on each face that this plate body 11 extends mutually do not offer an opening 123 respectively in this body 12, these openings 123 are in order to place soft tissue such as cartilage.

After this intervertebral fixer 1 is inserted between two body of cervical vertebra, can see through two locked

assemblies

21,22 pass these lugs 111 respectively, be locked in the central part (not shown) of this two body of cervical vertebra behind hole 1110 on 112 and another hole 1120, because the cervical vertebra setting of human body has certain radian, and a plurality of lugs 111 on this intervertebral fixer 1 plate body 11,112 but are and are horizontally disposed with, make this intervertebral fixer 1 insert and lock after between this two body of cervical vertebra, the radian physiological status that can't cooperate this cervical vertebra fully, and then this intervertebral fixer 1 protrudes after making operation, or the locked assembly 21 on this intervertebral fixer 1 that locks, 22 get loose, and cause sufferer to need many puzzlements and inconvenience of operation once more.

Referring to Fig. 2, schematic perspective view for existing another intervertebral fixer 3, this another intervertebral fixer 3 is integrally formed by a plate body 31 and a body 32, one of this plate body 31 distolateral outward-dipping extension one lug 311 wherein, offer a hole 3110 on this lug 311, and the other end side direction outer incline in this plate body 31 extends another lug 312, offers another hole 3120 on this another lug, and offers a perforate 313 in the central part of this plate body 31; And be provided with a body 32 in a side extension of this plate body 31, make this body 32 present integrally formed with this plate body 31, and this body 32 is a U type hollow form, and the end face 321 of this body 32 slightly is an arc to meet the arc physiological status of the contact surface (not shown) between two body of cervical vertebra.

After this another intervertebral fixer 3 is inserted between two body of cervical vertebra, can see through two locked

assemblies

41,42 pass these lugs 311 respectively, be locked in the central part (not shown) of two body of cervical vertebra behind hole 3110 on 312 and this another hole 3120, even if the lug 311 on this plate body 31 and another lug 312 are designed to respectively to these body 32 directions radian that tilts, meet radian after the two body of cervical vertebra serial connections with this, but this another intervertebral fixer 3 is owing to be that metal material is made, except DE is comparatively not good, these a plurality of lugs 311,312 inclination radian is provided with, the whole radian of cervical vertebra that might not meet each sufferer fully, therefore when inserting this another intervertebral fixer 3, the physiological status that can't cooperate fully with sufferer cervical vertebra radian still may take place, this another intervertebral fixer 3 protrudes after similarly can making operation, or the locked assembly on this another intervertebral fixer 3 that locks gets loose 41,42, cause sufferer to need many puzzlements and inconvenience of operation once more.

This shows that above-mentioned existing intervertebral fixer 1,3 can't really meet everyone whole radian of cervical vertebra, therefore, how to provide preferable intervertebral fixer required, be the present invention's purpose of application this time to satisfy reality.

Summary of the invention

Because above-mentioned existing intervertebral fixer still has many shortcomings; Therefore, the inventor is through the permanent research and experiment of making great efforts, and development and Design goes out a kind of " intervertebral fixer " of the present invention finally.

The object of the present invention is to provide a kind of intervertebral fixer, plate body is provided with at least one kink, but seeing through this kink makes this intervertebral fixer elasticity adjust its radian, make this intervertebral fixer cooperate the physiological status of the whole radian of each sufferer cervical vertebra fully, thereby reach the existing intervertebral fixer in improvement operation back and protrude, prevent that the locked assembly that is locked on the existing intervertebral fixer from getting loose, and the purpose that makes sufferer need not to perform the operation once more.

Description of drawings

Fig. 1 is the schematic perspective view of existing intervertebral fixer;

Fig. 2 is the schematic perspective view of existing another intervertebral fixer;

Fig. 3 is schematic perspective view of plate body of intervertebral fixer of the present invention;

Fig. 4 is the plate body another side schematic perspective view of intervertebral fixer of the present invention;

Fig. 5 is the body schematic perspective view of intervertebral fixer of the present invention;

Fig. 6 is the combination sketch map of intervertebral fixer of the present invention.

The specific embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.

Referring to Fig. 3 to Fig. 6, be respectively the plate body schematic perspective view of intervertebral fixer 5 of the present invention and the combination schematic perspective view of this intervertebral fixer 5, this intervertebral fixer 5 is made of a plate body 51 and a body 52.

One end of this plate body 51 extends upward an ear 511, the central part of this ear 511 offers one first hole 5110, the other end of this body 51 extends another ear 512 downwards, the central part of this another ear 512 offers one second hole 5120, and is respectively equipped with a plurality of

fins

5111,5121 in a side of this first hole 5110 and this second hole 5120; And the central part of this plate body 51 offers one the 3rd hole 513, the 3rd hole 513 is in face that should body 52 is provided with a bulge loop 5130 (in the present embodiment, this bulge loop 5130 is integrally formed with this plate body 51, also can be selected from a packing ring), and be provided with at least one kink 514 (as shown in Figures 3 and 4) in this plate body 51, the thickness of this at least one kink 514 is slightly thinner than the thickness of this plate body 51 and these a plurality of ears 511,512, but thereby making this intervertebral fixer 5 elasticity bending, this plate body 51 is that a flexible plastic material is made.Wherein, the thickness of this plate body 51 is meant on this plate body 51 thickness of remainder except that this at least one kink 514,

ear

511 and 512, the thickness of this at least one kink 514 is slightly thinner than the thickness of this remainder, and, the thickness of this at least one kink 514 is slightly thinner than the thickness of ear 511, and the thickness that is slightly thinner than ear 512.Usually this remainder, ear 511 and ear 512 are uniform thickness, what certainly any in these three parts also can be for uniform thickness not, when no matter which was for uniform thickness not in this remainder, ear 511 and the ear 512, the thickness of this at least one kink 514 all was slightly thinner than this and does not wait minimal thickness in the thickness portion.

In the present invention, the position of this kink 514 can be arranged on a face, the another side of this plate body 51, or be arranged at simultaneously on the face and another side of this plate body 51, but thereby make this intervertebral fixer elasticity bending, make this intervertebral fixer 5 cooperate the physiological status of the whole radian of each sufferer cervical vertebra fully.

A side of this body 52 offers a screw 520 (as shown in Figure 5), the 3rd hole 513 that this screw 520 can see through a locked assembly 6 (as shown in Figure 6) and this plate body 51 is screwed, and contact with this bulge loop 5130, make this body 52 combined with this plate body 51, allow this body 52 at face of this plate body 51 and between this ear 511 and this another ear 512, and the compound mode of aforementioned this plate body 51 and this body 52 is as limit, and this plate body 51 also can be integrally formed with this body 52.

The end face of this body 52 and bottom surface are respectively equipped with a plurality of engaging tooths 521,522, and are provided with one and are through to the through hole 523 of this bottom central part position from this end face central part, and (as shown in Figure 5), this through hole 523 is in order to put a bone grafting tissue of sufferer.

By above-mentioned member, during use, after inserting this body 52 between two body of cervical vertebra, can see through another locked assembly 7a, 7b (as shown in Figure 6) passes this a plurality of ears 511 respectively, 512 hole 5110, be locked in the central part (not shown) of this two body of cervical vertebra after 5120, and by these a plurality of holes 5110, a plurality of fins 5111 of 5120 can prevent this a plurality of another locked assembly 7a, 7b gets loose, so that seeing through these kink 514 elasticity, the plate body 51 of this intervertebral fixer 5 adjusts its radian, thereby the physiological status that cooperates the whole radian of sufferer cervical vertebra fully, this intervertebral fixer 5 protrudes after effectively improving operation, or prevent to be locked in another locked assembly 7a of this intervertebral fixer 5,7b gets loose, and make sufferer need not to perform the operation once more, carry out the treatment of cervical spondylosis.

Hence one can see that, the key that the present invention is different from prior art is: intervertebral fixer 5 plate bodys 51 of the present invention are provided with at least one kink 514, the thickness of this at least one kink 514 is slightly thinner than this plate body 51 and these a plurality of ears 511,512 thickness, seeing through this kink 514 can make this intervertebral fixer 5 have preferable and elasticity flexibly, to adjust the radian of these intervertebral fixer 5 ears 511 and another ear 512 neatly, make it can meet the physiological status of each sufferer cervical vertebra radian fully, effectively improve existing intervertebral fixer 1,3 lug 111,112,311,312 (as first, shown in two figure) not to be to be horizontally disposed with the radian physiological status that can't cooperate this cervical vertebra fully, the radian setting of tilting exactly not necessarily meets the whole radian of cervical vertebra of each sufferer fully, postoperative many puzzlements and the risk of causing is so the present invention has novelty in fact, creativeness and practicality.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. an intervertebral fixer is characterized in that, comprising:

One plate body, the one end has an ear, the central part of this ear offers one first hole, the other end of this plate body has another ear, the central part of this another ear offers one second hole, and is respectively equipped with a plurality of fins in a side of this first hole and this second hole, and offers one the 3rd hole in the central part of this plate body, and this plate body is provided with at least one kink, and the thickness of this at least one kink is slightly thinner than the thickness of this plate body and these a plurality of ears; And

One body, position be at face of this plate body and between this ear and this another ear, and this body offering a screw to the 3rd hole place that should plate body, and this screw can be locked wherein for a locked assembly.

2. intervertebral fixer according to claim 1 is characterized in that, wherein this plate body is a flexible plastic material.

3. intervertebral fixer according to claim 2 is characterized in that, wherein these a plurality of fins get loose after locking in order to prevent another locked assembly.

4. intervertebral fixer according to claim 3 is characterized in that, wherein the 3rd hole is in being provided with a bulge loop to face that should body, and this bulge loop contacts with this screw.

5. intervertebral fixer according to claim 4 is characterized in that, wherein this bulge loop is can be with this plate body integrally formed or be selected from a packing ring.

6. intervertebral fixer according to claim 5 is characterized in that, wherein this at least one kink can be arranged on a face, the another side of this plate body, or is arranged on two faces of this plate body.

7. intervertebral fixer according to claim 6 is characterized in that, wherein this intervertebral fixer is adjusted its elastic radian by this at least one kink.

8. intervertebral fixer according to claim 7 is characterized in that, wherein this plate body and this body can be one of the forming.