CN103431927A - Lumbar zygapophyseal joint fusion device - Google Patents
Lumbar zygapophyseal joint fusion device Download PDFInfo
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- CN103431927A CN103431927A CN2013103474293A CN201310347429A CN103431927A CN 103431927 A CN103431927 A CN 103431927A CN 2013103474293 A CN2013103474293 A CN 2013103474293A CN 201310347429 A CN201310347429 A CN 201310347429A CN 103431927 A CN103431927 A CN 103431927A
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- CN
- China
- Prior art keywords
- cavity
- fusion device
- lumbar vertebra
- joint fusion
- zygapophysial
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
Abstract
The invention discloses a lumbar zygapophyseal joint fusion device which comprises a support part and a clamping part connected with the support part, wherein the support part comprises a bullet-shaped body and serrations arranged at the upper and lower sides of the body, and the front side surface of the clamping part is greater than the rear side surface of the support part; the body is provided with a vertically-through cavity I and a cavity II which is through in the front-and-rear direction; the edges of the cavity I and the cavity II are provided with net structures; the tail part of the fusion device is provided with an axial threaded hole. The lumbar zygapophyseal joint fusion device can be used for effectively solving the problems of low fusion rate and serious complications, can be used for developing under X-rays, is applicable to developing under percutaneous fluoroscopy, and can be applied to a minimally invasive surgery.
Description
Technical field
The present invention relates to medical domain, a kind of lumbar vertebra zygapophysial joint fusion cage is provided especially.
Background technology
Zygapophysial joints, be a more complicated structure of spinal column, and the biomechanics characteristic of complicated anatomical structure, complexity is arranged.This joint plays an important role for the stability of spinal column.Each sections at spinal column has two zygapophysial jointss, is positioned at the rear outside of spinal column.Each zygapophysial joints consists of the inferior articular process of upper vertebral body and the superior articular process of the next vertebral body.This articular surface is 82 °-86 ° in the sagittal plane angle and approaches vertically, and with the angle of center line formation, is 15 °-70 ° at axial plane, by waist 1, to waist 5 angles, is diminished gradually.This angle makes this zygapophysial joints that anti-turning effort preferably be arranged, and also plays a role aspect shearing resistance and can share part vertical compression load.The capsule ligament of Facet Joints bends and stretches, rotates and the anti-shearing force aspect has all been played to effect the restriction lumbar vertebra.Because Facet Joints is the joint of the unique real activity of lumbar vertebra, fix this joint and can well limit the most of activity of lumbar vertebra, improve lumbar stability.Therefore Facet Joints merges the purpose that can reach Lumbar Fusion.Facet Joints merges the two kinds of modes that mainly contain at present: bone-graft fusion and interarticular screw are fixing to be merged.
Just in merge at the lumbar vertebra rear, described as far back as nineteen twenty-four Hibbs the treating method that zygapophysial joints merges, destroyed joint capsule, excision articular cartilage.There is subsequently the scholar to implant on this basis a small amount of spongy bone in the Facet Joints gap to promote fusion.Having research to carry out spinal canal decompression, the rear outside to the lumbar spinal stenosis patient merges and is aided with internal fixation treatment, follow up a case by regular visits to and find that the zygapophysial joints fusion rate is 68%(26/38), that wherein the little joint of bilateral all reaches fusion is 63%(12/19), that bilateral does not all reach fusion is 26%(5/19), a side merges a side and is not fused to 11%(2/19).Although can make the zygapophysial joints more than 60% reach fusion by the method for destroying joint capsule, excision articular cartilage and zygapophysial joints bone grafting, fusion rate still remains to be improved.
There is the some scholars mode fixing by screw to improve fusion rate.King etc. merge and improve fusion rate of bone graft between nineteen forty-four application zygapophysial joints screw fixing joint transverse process, nineteen fifty-five Boucher etc. has improved the technology of King, although fusion rate reaches 100%, because head of screw easily enters intervertebral foramina, cause nerve root injury and be not widely used.Still there is no at present a kind of fusion way that can improve preferably zygapophysial joints fusion rate and few intercurrent disease.
Patent 200810244437.4 and patent 201020022436.8 are the immediate prior art of the present invention, develop a kind of lumbar vertebra zygapophysial joint fusion cage to improve medium-term and long-term Facet Joints fusion rate and the remission rate of postoperative symptom.
Patent 200810244437.4 is to be prepared from by cylindrical homogeneous allogenic bone.Can there be foreign body reaction in this material in the some patients were body, exist and merge not good problem, and the rigidity of allogeneic bone implant material is not good enough, and implanting rear stability need to be by fixing in other or outer fixing strengthening.When not good, there will be splitting or the fracture of fusion device when the duct of abrasive drilling polishing and the fusion device goodness of fit in implantation process.With the fusion of zygapophysial joints face need to be longer time, exist and not merge or situation that fusion device absorbs.Kit is comparatively complicated, and the implantation required precision is high, and operating process is loaded down with trivial details.
Patent 201020022436.8 is improvement of carrying out on the basis of patent 200810244437.4, and fusion device adopts oval metal shell, although improved the intensity of implant, its Initial stability is poor, easily occurs deviating from after implantation and slips into problem.
Summary of the invention
The object of the present invention is to provide a kind of lumbar vertebra zygapophysial joint fusion cage, can effectively solve the above-mentioned problem of mentioning.
Technical scheme of the present invention is: a kind of lumbar vertebra zygapophysial joint fusion cage, comprise support section and the shackle portion be attached thereto, support section comprises bullet-headed body and the serration of being located at the upper and lower both sides of body, and the leading flank of shackle portion is greater than the trailing flank of support section.
Have the cavity one of up/down perforation on described body.
The cavity two connected before and after having on described body.
Edge at cavity one and cavity two is provided with network structure.
Afterbody at fusion device is provided with screwed hole vertically.
Described fusion device adopts medical titanium alloy Ti-6Al-4V, Ti-24Nb-4Zr-8Sn or PEEK(polyether-ether-ketone) material.
The present invention has following good effect:
(1) support section of the present invention is provided with serration, and is provided with shackle portion in the support section back, makes fusion device that good stability be arranged, and is conducive to merge.
(2) the present invention adopts medical titanium alloy Ti-6Al-4V, Ti-24Nb-4Zr-8Sn or PEEK(polyether-ether-ketone) material makes, and has good biocompatibility.
(3) the present invention can provide enough intensity, has avoided subsiding or being out of shape of implants.Can be used alone, also can be aided with other methods of internal fixation, as pedicle screw etc.
(4) the present invention can develop under X-Ray, is applicable to carry out this operation under the percutaneous perspective, can be applicable to Minimally Invasive Surgery.
(5) support section of the present invention is bullet-shaped, and this design can make fusion device enter smoothly, and can not damage the place ahead nervous tissue, has reduced the generation of complication.
(6) afterbody of the present invention is provided with the screwed hole coordinated with instrument, facilitates fusion device to implant.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
The front view that Fig. 1 is the embodiment of the present invention 1.
The top view that Fig. 2 is the embodiment of the present invention 1.
The right view that Fig. 3 is the embodiment of the present invention 1.
The front view that Fig. 4 is the embodiment of the present invention 2.
The top view that Fig. 5 is the embodiment of the present invention 2.
The right view that Fig. 6 is the embodiment of the present invention 2.
In figure: 1, support section; 2, shackle portion; 3, body; 4, projection; 5, cavity one; 6, cavity two; 7, network structure; 8, screwed hole.
The specific embodiment
See Fig. 1, Fig. 2 and Fig. 3, a kind of lumbar vertebra zygapophysial joint fusion cage of the present embodiment, comprise support section 1 and the shackle portion 2 be attached thereto, support section 1 comprises bullet-headed body 3 and the serration 4 of being located at the upper and lower both sides of body, and the leading flank of shackle portion 2 is greater than the trailing flank of support section 1.Have the cavity 1 of up/down perforation on body 3, implant autologous bone in cavity 1, promote local the fusion.Afterbody at fusion device is provided with screwed hole 8 vertically.Fusion device adopts medical titanium alloy Ti-6Al-4V, Ti-24Nb-4Zr-8Sn or PEEK(polyether-ether-ketone) material.
See Fig. 4, Fig. 5 and Fig. 6, a kind of lumbar vertebra zygapophysial joint fusion cage of the present embodiment, comprise support section 1 and the shackle portion 2 be attached thereto, support section 1 comprises bullet-headed body 3 and the serration 4 of being located at the upper and lower both sides of body, and the leading flank of shackle portion 2 is greater than the trailing flank of support section 1.Have the cavity 1 of up/down perforation, the cavity 26 that front and back connect on body 3, at the edge of cavity 1 and cavity 26, be provided with network structure 7, network structure 7 purposes are beneficial to the bone trabecula growth.Afterbody at fusion device is provided with screwed hole 8 vertically.Fusion device adopts medical titanium alloy Ti-6Al-4V, Ti-24Nb-4Zr-8Sn or PEEK(polyether-ether-ketone) material.
Above-described embodiment is only explanation technical conceive of the present invention and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. a lumbar vertebra zygapophysial joint fusion cage, it is characterized in that: the shackle portion (2) that comprises support section (1) and be attached thereto, support section (1) comprises bullet-headed body (3) and is located at the serration (4) of the upper and lower both sides of body (3), and the leading flank of shackle portion (2) is greater than the trailing flank of support section (1).
2. according to a kind of lumbar vertebra zygapophysial joint fusion cage claimed in claim 1, it is characterized in that: the cavity one (5) that has up/down perforation on described body (3).
3. according to a kind of lumbar vertebra zygapophysial joint fusion cage claimed in claim 2, it is characterized in that: the cavity two (6) connected before and after having on described body (3).
4. according to a kind of lumbar vertebra zygapophysial joint fusion cage claimed in claim 3, it is characterized in that: the edge at cavity one (5) and cavity two (6) is provided with network structure (7).
5. according to claim 2 or 3 or 4 described a kind of lumbar vertebra zygapophysial joint fusion cages, it is characterized in that: the afterbody at fusion device is provided with screwed hole (8) vertically.
6. according to a kind of lumbar vertebra zygapophysial joint fusion cage claimed in claim 1, it is characterized in that: described fusion device adopts medical titanium alloy Ti-6Al-4V, Ti-24Nb-4Zr-8Sn or PEEK(polyether-ether-ketone) material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103474293A CN103431927A (en) | 2013-08-09 | 2013-08-09 | Lumbar zygapophyseal joint fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103474293A CN103431927A (en) | 2013-08-09 | 2013-08-09 | Lumbar zygapophyseal joint fusion device |
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| CN103431927A true CN103431927A (en) | 2013-12-11 |
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| CN2013103474293A Pending CN103431927A (en) | 2013-08-09 | 2013-08-09 | Lumbar zygapophyseal joint fusion device |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999063914A1 (en) * | 1998-06-09 | 1999-12-16 | Henderson Fraser C | Fusion stabilization chamber |
| CN1390114A (en) * | 1999-10-20 | 2003-01-08 | Sdgi控股股份有限公司 | Impacted orthopedic bone support implant |
| JP2003038534A (en) * | 2001-06-28 | 2003-02-12 | Depuy Acromed Inc | Module type fixed gauge, spinal implant system and method of implanting spinal disc prosthesis |
| CN201168075Y (en) * | 2008-03-21 | 2008-12-24 | 杨惠林 | Minimal invasion intervertebral fusion device |
| US20090024166A1 (en) * | 2004-08-03 | 2009-01-22 | Vertech Innovations, Llc. | Facet device and method |
| US20090105819A1 (en) * | 2004-10-18 | 2009-04-23 | Barry Richard J | Spine microsurgery techniques, training aids and implants |
| US20100121378A1 (en) * | 2008-11-10 | 2010-05-13 | Malek Michel H | Facet fusion system |
| CN201612682U (en) * | 2010-02-09 | 2010-10-27 | 北京理贝尔生物工程研究所有限公司 | Posterior lumbar interbody fusion device |
| CN201664351U (en) * | 2010-01-11 | 2010-12-08 | 崔志明 | Novel lumbar vertebra zygapophysial joint fusion cage |
| CN101959468A (en) * | 2008-03-06 | 2011-01-26 | 斯恩蒂斯有限公司 | Facet is interfered screw |
| CN102202611A (en) * | 2008-10-21 | 2011-09-28 | Ww技术股份公司 | Fusion device and tool set for fusing a human or animal joint |
| CN202086620U (en) * | 2011-06-01 | 2011-12-28 | 中国人民解放军第四军医大学 | Interbody fusion cage with bioactive multi-hole titanium alloy for people |
| US20120035727A1 (en) * | 2009-09-03 | 2012-02-09 | Lins Robert E | Surgical implant device for the translation and fusion of a facet joint of the spine |
| TW201240653A (en) * | 2012-05-30 | 2012-10-16 | Ossaware Biotech Co Ltd | Hollow-grid medical implant |
| CN102860888A (en) * | 2012-09-07 | 2013-01-09 | 中山大学附属第三医院 | Integral lumbar intervertebral titanium plate fusion apparatus |
| CN203468801U (en) * | 2013-08-09 | 2014-03-12 | 朱悦 | Lumbar vertebra zygapophyseal joint fusion device |
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2013
- 2013-08-09 CN CN2013103474293A patent/CN103431927A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999063914A1 (en) * | 1998-06-09 | 1999-12-16 | Henderson Fraser C | Fusion stabilization chamber |
| CN1390114A (en) * | 1999-10-20 | 2003-01-08 | Sdgi控股股份有限公司 | Impacted orthopedic bone support implant |
| JP2003038534A (en) * | 2001-06-28 | 2003-02-12 | Depuy Acromed Inc | Module type fixed gauge, spinal implant system and method of implanting spinal disc prosthesis |
| US20090024166A1 (en) * | 2004-08-03 | 2009-01-22 | Vertech Innovations, Llc. | Facet device and method |
| US20090105819A1 (en) * | 2004-10-18 | 2009-04-23 | Barry Richard J | Spine microsurgery techniques, training aids and implants |
| CN101959468A (en) * | 2008-03-06 | 2011-01-26 | 斯恩蒂斯有限公司 | Facet is interfered screw |
| CN201168075Y (en) * | 2008-03-21 | 2008-12-24 | 杨惠林 | Minimal invasion intervertebral fusion device |
| CN102202611A (en) * | 2008-10-21 | 2011-09-28 | Ww技术股份公司 | Fusion device and tool set for fusing a human or animal joint |
| US20100121378A1 (en) * | 2008-11-10 | 2010-05-13 | Malek Michel H | Facet fusion system |
| US20120035727A1 (en) * | 2009-09-03 | 2012-02-09 | Lins Robert E | Surgical implant device for the translation and fusion of a facet joint of the spine |
| CN201664351U (en) * | 2010-01-11 | 2010-12-08 | 崔志明 | Novel lumbar vertebra zygapophysial joint fusion cage |
| CN201612682U (en) * | 2010-02-09 | 2010-10-27 | 北京理贝尔生物工程研究所有限公司 | Posterior lumbar interbody fusion device |
| CN202086620U (en) * | 2011-06-01 | 2011-12-28 | 中国人民解放军第四军医大学 | Interbody fusion cage with bioactive multi-hole titanium alloy for people |
| TW201240653A (en) * | 2012-05-30 | 2012-10-16 | Ossaware Biotech Co Ltd | Hollow-grid medical implant |
| CN102860888A (en) * | 2012-09-07 | 2013-01-09 | 中山大学附属第三医院 | Integral lumbar intervertebral titanium plate fusion apparatus |
| CN203468801U (en) * | 2013-08-09 | 2014-03-12 | 朱悦 | Lumbar vertebra zygapophyseal joint fusion device |
Non-Patent Citations (2)
| Title |
|---|
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Application publication date: 20131211 |