CN104323874A - Zero-incisure cervical fusion cage with self-stabilization ridges - Google Patents
Zero-incisure cervical fusion cage with self-stabilization ridges Download PDFInfo
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- CN104323874A CN104323874A CN201410685855.2A CN201410685855A CN104323874A CN 104323874 A CN104323874 A CN 104323874A CN 201410685855 A CN201410685855 A CN 201410685855A CN 104323874 A CN104323874 A CN 104323874A
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Abstract
The invention relates to the field of medical apparatus and instruments for cervical vertebra, in particular to a zero-incisure cervical fusion cage with self-stabilization ridges; the technical problem to be solved by the invention is to provide the zero-incisure cervical fusion cage with the self-stabilization ridges, which not only can be immediately stabilized but also is fixed without screwing a screw or an insertion plate into the tail part of the cervical fusion cage. The zero-incisure cervical fusion cage with the self-stabilization ridges comprises a fusion cage body and a bone grafting straight slot formed in the fusion cage body along the vertical direction; the upper surface and the lower surface of the fusion cage body are respectively and symmetrically provided with the paired self-stabilization ridges; the central axes of the self-stabilization ridges are parallel with each other, and the top face of each self-stabilization ridge is provided with anti-back pawls. The concept of the zero-incisure cervical fusion cage with the self-stabilization ridges, disclosed by the invention, has the skillful points that not only can the transmission of vertebra load be more uniform to avoid local load concentration but also clinical operation is very convenient, and the pain of patients is relieved by creatively utilizing the self-stabilization ridges; the zero-incisure cervical fusion cage has a very promotion prospect, and is especially suitable for anterior decompression and fusion operative treatment on cervical spondylosis.
Description
Technical field
The present invention relates to cervical vertebra medical apparatus and instruments field, especially a kind of band is from zero incisura cervical fusion cage of steady ridge.
Background technology
Anterior approach discectomy decompression bone graft fusion is the classical modus operandi for the treatment of cervical spondylosis, the use of Invasive lumbar fusion device reduces that bone grafting does not merge, the incidence rate of pseudarthrosis, zero incisura Invasive lumbar fusion device is auxiliary fixing without the need to front titanium plate, decreases the generation of postoperative dysphagia.For reaching immediate postoperative stability, after zero incisura Invasive lumbar fusion device in existing market is implanted, need 2 to 4 pieces of screws be screwed in its afterbody diagonal or embed two panels inserted sheet so that fusion device is fixed on hypocentrum, complex operation, extend operating time, its expense is also higher; Around pedicle screw or inserted sheet, load concentration causes stress shielding, is unfavorable for skeletonization; Screw or blade inserting diagonal are fixed and are easily occurred that soleplate cutting phenomenon causes implants and loosens; Screw or inserted sheet are formed for mostly being titanium alloy material, and opacity, when row MRI or CT examination, artifact is comparatively large, and the situation of the aerial osteogenesis of bone grafting is observed in interference.
Summary of the invention
Technical problem to be solved by this invention is to provide one and can not only realizes at once stablizing, and is screwed into band that screw or inserted sheet the fix zero incisura cervical fusion cage from steady ridge without the need to afterbody.
The technical solution adopted for the present invention to solve the technical problems is: with the zero incisura cervical fusion cage from steady ridge, comprise fusion device body, be vertically arranged at the intrinsic bone grafting groove of fusion device, the upper surface of described fusion device body and lower surface are all symmetrically arranged with paired from steady ridge, described from steady ridge central axis is all parallel to each other and the described end face from steady ridge is provided with anti-back pawl.
Further, orientation sensing device is provided with in described fusion device body.
Further, the described shape from steady ridge is beloid wedge shape.
Further, the making material of described fusion device body is polyether-ether-ketone.
Further, from the making material of steady ridge be titanium alloy.
Further, the surface of the described surface from steady ridge and fusion device body is provided with hydroxyapatite coating layer.
Further, the surface of the described surface from steady ridge and fusion device body is provided with anti-skid structure.
Further, the upper surface of described fusion device body and the epipyramis contact surface of epipyramis fit tightly.
Further, the lower surface of described fusion device body and the lower vertebral facing surfaces of lower vertebra fit tightly.
Further, the dorsal surface of described fusion device body is provided with installing hole.
The invention has the beneficial effects as follows: when reality uses, first skeleton to be implanted is positioned in bone grafting groove, then, outputing for holding epipyramis groove from steady ridge and lower vertebral recesses at epipyramis to be embedded and lower vertebra place.Ensuing, only the front end of fusion device body need be embedded into after between epipyramis and lower vertebra, by external tool, fusion device body be knocked between epipyramis and lower vertebra immediately.After knocking in, well be nested in epipyramis groove and lower vertebral recesses from steady ridge, in addition, because the upper surface of fusion device body and the lower surface of the epipyramis contact surface of epipyramis and fusion device body and the lower vertebral facing surfaces of lower vertebra all fit tightly, so the skeleton to be implanted in bone grafting groove can be very desirable with epipyramis and lower spinal fusion, to be well longly combined together until last.The ingenious part of the present invention's design is creationaryly to make use of from steady ridge, and this Invasive lumbar fusion device is anatomical design, its upper and lower surface is consistent with the soleplate form of the upper and lower vertebra of compatriots, not only can make the conduction of vertebra load evenly, avoid local load to concentrate, be more conducive to osteogenesis, and be extremely convenient to clinical operation, the present invention extremely has promotion prospect, is particularly useful for the anterior decompression fusion treatment of cervical spondylosis.Concretely, advantage of the present invention is: after one, this fusion device is implanted, stablize ridge and Invasive lumbar fusion device and upper hypocentrum are fixedly secured, have good Initial stability, screw is screwed into or inserted sheet is fixed without the need to afterbody, easy and simple to handle, save operating time and economic cost.Two, stablizing ridge is beloid design, and both sides are designed to coarse structure, and after vertebral body, afterbody stablizes ridge to two pleurocentrums generation squeezing actions, and stability is better.Three, this fusion device designs for anatomical form, and its upper and lower surface, according to the form Design of soleplate up and down of vertebral body, makes the laminating of itself and upper and lower soleplate better.Four, this Invasive lumbar fusion device stablizes ridge and all there is hydroxyapatite coating layer top and bottom, is more conducive to the growth of bone.Five, to stablize ridge up and down symmetrical for this Invasive lumbar fusion device, load conduction evenly, avoid local load and concentrate, be more conducive to osteogenesis.Six, this Invasive lumbar fusion device is stablized ridge up and down and is hung down and embed in upper hypocentrum, and stability is better, not easily occurs that soleplate cuts.Seven, this Invasive lumbar fusion device is polyetheretherketonematerials materials, and the imaging examination compatibility is good.Eight, this Invasive lumbar fusion device is the generation that zero incisura Invasive lumbar fusion device decreases postoperative foreign body sensation and dysphagia.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is side view of the present invention.
Fig. 4 is the structural representation that the present invention is installed between epipyramis and lower vertebra.
Be labeled as in figure: fusion device body 1, from steady ridge 11, anti-back pawl 111, bone grafting groove 12, installing hole 13, upper surface 14, lower surface 15, orientation sensing device 16, anti-skid structure 17, epipyramis 2, epipyramis contact surface 21, epipyramis groove 22, lower vertebra 3, lower vertebral facing surfaces 31, lower vertebral recesses.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
Band is as shown in Figure 1, Figure 2, Figure 3, Figure 4 from zero incisura cervical fusion cage of steady ridge, comprise fusion device body 1, be vertically arranged at bone grafting groove 12 in fusion device body 1, the upper surface 14 of described fusion device body 1 and lower surface 15 are all symmetrically arranged with paired from steady ridge 11, described from steady ridge 11 central axis is all parallel to each other and the described end face from steady ridge 11 is provided with anti-back pawl 111.
As key of the present invention, not only serve fixing effect from steady ridge 11, but also be realize load conduction evenly, avoid local load and concentrate, be more conducive to the key Design of osteogenesis.General, upper surface 14 paired symmetrical mutually from steady ridge 11, lower surface 15 paired symmetrical mutually from steady ridge 11, being uniformly distributed of realizable force that like this can be best.From the anti-back pawl 111 that the end face of steady ridge 11 is arranged, as shown in Figure 3, described anti-back pawl 111 is to be convenient to also prevent fusion device body 1 from skidding off between epipyramis contact surface 21 and lower vertebral facing surfaces 31 while that fusion device body 1 embedding, thus makes the environment of osteogenesis more stable.Like this, the skeleton being placed in bone grafting groove 12 in advance can well with epipyramis 2 together with lower vertebra 3 ankylose.Certainly, generally when designing, preferably the upper surface 14 of described fusion device body 1 can be fitted tightly with the epipyramis contact surface 21 of epipyramis 2, and the lower surface 15 of described fusion device body 1 fits tightly with the lower vertebral facing surfaces 31 of lower vertebra 3, namely this fusion device body 1 is anatomical design, its upper and lower surface is consistent with the soleplate form of the upper and lower vertebra of compatriots, not only can make the conduction of vertebra load evenly, the structure so more meeting vertebra anatomic shape can allow the skeleton in bone grafting groove 12 more preferably fit with epipyramis contact surface 21 and lower vertebral facing surfaces 31.
In order in the process embedding fusion device body 1, the degree of depth embedded fusion device body 1 has to be monitored accurately, can select to arrange orientation sensing device 16 in fusion device body 1.In real time the change in location of orientation sensing device 16 is monitored by external supervising device, thus obtain the accurate data of fusion device body 1 insert depth, make surgical effect better.In addition, also can consider that by the shape from steady ridge 11 be beloid wedge shape, as shown in Figure 2, beloid wedge shape is not only convenient to embed greatly, and the squeezing action of vertebral body and make after embedding more firm, thus also allow the embedding fusion device body 1 after embedding more firm.Further, also anti-skid structure 17 can be provided with described from the surface of steady ridge 11 and the surface of fusion device body 1, thus allowing same firm of embedding fusion device body 1 after embedding, described anti-skid structure 17 can be undulatory non slip surface, also can be non-skid film of attaching etc.In conjunction with the experience of practice, for the ease of utilizing the instrument of operation, fusion device body 1 is embedded between epipyramis 2 and lower vertebra 3, the dorsal surface of described fusion device body 1 can be provided with installing hole 13, when actual installation, the tip of the insertion tool supporting with this Invasive lumbar fusion device is inserted in installing hole 13, well for fusion device body 1 provides the thrust of advance, thus the carrying out of embedding can be ensured.
Traditional bone grafting hole, cervical vertebra zero incisura Invasive lumbar fusion device front plane all has the screw of titanium alloy material or inserted sheet to be screwed into or to insert hypocentrum to reach the Initial stability of Invasive lumbar fusion device.But because of titanium alloy material opacity, there is larger artifact when MRI or CT examination, disturb the observation to osteogenesis situation in bone grafting hole.In order to prevent carrying out x-ray, the problem that when MRI or CT examination, artifact is larger, the situation of the aerial osteogenesis of bone grafting is observed in interference, and the making material for fusion device body 1 preferably can not produce the polyether-ether-ketone of artifact, thus greatly reduces the interference to check result.And in view of the specific function from steady ridge 11, the described making material from steady ridge 11 can be chosen as titanium alloy, titanium alloy can at x-ray, artifact is produced when MRI or CT examination, but more elongated from steady ridge 11 structure in the present invention, the artifact produced is very little, also can not affect the judgement of testing result.Therefore, the present invention greatly reduces the area of artifact under the prerequisite of firm effect ensureing fusion device body 1 the best, and medical professional also can be facilitated the judgement of check result.
In addition, can also select all to arrange hydroxyapatite coating layer described from the surface of steady ridge 11 and the surface of fusion device body 1, described hydroxyapatite can well promote the growth of bone, matches with fixed effect of the present invention, and speed is merged in the production that improve skeleton greatly.
Claims (10)
1. band is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: comprise fusion device body (1), be vertically arranged at bone grafting groove (12) in fusion device body (1), the upper surface (14) of described fusion device body (1) and lower surface (15) are all symmetrically arranged with paired from steady ridge (11), described from steady ridge (11) central axis is all parallel to each other and the described end face from steady ridge (11) is provided with anti-back pawl (111).
2. band as claimed in claim 1 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: be provided with orientation sensing device (16) in described fusion device body (1).
3. band as claimed in claim 1 or 2 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: the described shape from steady ridge (11) is beloid wedge shape.
4. band as claimed in claim 1 or 2 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: the making material of described fusion device body (1) is polyether-ether-ketone.
5. band as claimed in claim 1 or 2 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: be titanium alloy from the making material of steady ridge (11).
6. band as claimed in claim 1 or 2 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: the surface of the described surface from steady ridge (11) and fusion device body (1) is provided with hydroxyapatite coating layer.
7. band as claimed in claim 1 or 2 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: the surface of the described surface from steady ridge (11) and fusion device body (1) is provided with anti-skid structure (17).
8. band as claimed in claim 1 or 2 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: comprise the epipyramis (2) being positioned at fusion device body (1) top, the upper surface (14) of described fusion device body (1) and the epipyramis contact surface (21) of epipyramis (2) fit tightly.
9. band as claimed in claim 1 or 2 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: comprise the lower vertebra (3) being positioned at fusion device body (1) below, the lower surface (15) of described fusion device body (1) and the lower vertebral facing surfaces (31) of lower vertebra (3) fit tightly.
10. band as claimed in claim 1 or 2 is from zero incisura cervical fusion cage of steady ridge, it is characterized in that: the dorsal surface of described fusion device body (1) is provided with installing hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685855.2A CN104323874A (en) | 2014-11-25 | 2014-11-25 | Zero-incisure cervical fusion cage with self-stabilization ridges |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410685855.2A CN104323874A (en) | 2014-11-25 | 2014-11-25 | Zero-incisure cervical fusion cage with self-stabilization ridges |
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| CN104323874A true CN104323874A (en) | 2015-02-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584843A (en) * | 2019-07-27 | 2019-12-20 | 高延征 | Zero-notch self-stability cervical interbody fusion cage |
| CN111568610A (en) * | 2020-05-29 | 2020-08-25 | 四川大学华西医院 | Lateral front approach cervical interbody fusion cage and matched bone grafting tool |
| CN116650180A (en) * | 2023-08-01 | 2023-08-29 | 四川大学华西医院 | Magnetized interbody fusion cage and implantation method |
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| US20070191955A1 (en) * | 2003-12-08 | 2007-08-16 | St. Francis Medical Technologies, Inc. | System and Method for Replacing Degenerated Spinal Disks |
| US20110178600A1 (en) * | 2006-04-20 | 2011-07-21 | Moskowitz Mosheh T | Electronically controlled artificial intervertebral disc with motor assisted actuation systems and an active closed-loop microchip responding by sensors to variable human locomotor activity and spinal motion |
| US20120101582A1 (en) * | 2008-02-29 | 2012-04-26 | Nuvasive, Inc. | Implants and Methods for Spinal Fusion |
| CN104055608A (en) * | 2014-06-26 | 2014-09-24 | 苏州欣荣博尔特医疗器械有限公司 | Zero-notch anterior cervical intervertebral fusion cage |
| CN204260872U (en) * | 2014-11-25 | 2015-04-15 | 四川大学华西医院 | Be with the zero incisura cervical fusion cage from steady ridge |
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2014
- 2014-11-25 CN CN201410685855.2A patent/CN104323874A/en active Pending
Patent Citations (6)
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| US20070191955A1 (en) * | 2003-12-08 | 2007-08-16 | St. Francis Medical Technologies, Inc. | System and Method for Replacing Degenerated Spinal Disks |
| CN1913846A (en) * | 2004-02-04 | 2007-02-14 | Ldr医学公司 | Intervertebral disc prosthesis |
| US20110178600A1 (en) * | 2006-04-20 | 2011-07-21 | Moskowitz Mosheh T | Electronically controlled artificial intervertebral disc with motor assisted actuation systems and an active closed-loop microchip responding by sensors to variable human locomotor activity and spinal motion |
| US20120101582A1 (en) * | 2008-02-29 | 2012-04-26 | Nuvasive, Inc. | Implants and Methods for Spinal Fusion |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584843A (en) * | 2019-07-27 | 2019-12-20 | 高延征 | Zero-notch self-stability cervical interbody fusion cage |
| CN111568610A (en) * | 2020-05-29 | 2020-08-25 | 四川大学华西医院 | Lateral front approach cervical interbody fusion cage and matched bone grafting tool |
| CN111568610B (en) * | 2020-05-29 | 2022-12-27 | 四川大学华西医院 | Lateral front approach cervical interbody fusion cage and matched bone grafting tool |
| CN116650180A (en) * | 2023-08-01 | 2023-08-29 | 四川大学华西医院 | Magnetized interbody fusion cage and implantation method |
| CN116650180B (en) * | 2023-08-01 | 2023-11-10 | 四川大学华西医院 | Magnetized interbody fusion cage and implantation method |
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Application publication date: 20150204 |
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