CN102397097B - Interspinous fusion device - Google Patents
Interspinous fusion device Download PDFInfo
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- CN102397097B CN102397097B CN 201110449991 CN201110449991A CN102397097B CN 102397097 B CN102397097 B CN 102397097B CN 201110449991 CN201110449991 CN 201110449991 CN 201110449991 A CN201110449991 A CN 201110449991A CN 102397097 B CN102397097 B CN 102397097B
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- fixing head
- fusant
- fixing plate
- jackscrew
- secondary fixing
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- 230000004927 fusion Effects 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 44
- 239000007943 implant Substances 0.000 claims abstract description 8
- 210000000988 bone and bone Anatomy 0.000 claims description 13
- 230000000295 complement effect Effects 0.000 claims description 3
- 208000014674 injury Diseases 0.000 abstract 1
- 230000000399 orthopedic effect Effects 0.000 abstract 1
- 230000008733 trauma Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000001356 surgical procedure Methods 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 206010056377 Bone tuberculosis Diseases 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 210000004705 lumbosacral region Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 208000015122 neurodegenerative disease Diseases 0.000 description 1
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Abstract
The invention relates to an interspinous fusion device. The interspinous fusion device comprises a main fixing plate, a secondary fixing plate and a jackscrew, wherein the main fixing plate is arranged at one side of two adjacent spinous processes; a raised connection fusion body is arranged on the main fixing plate; the part, which is inserted between the spinous processes, of the connection fusion body is a hollow mesh cage in which orthopedic implants are filled; the secondary fixing plate is arranged at the other side of the two adjacent spinous processes; a mounting hole matched with the connection fusion body and a fixing hole matched with the jackscrew are formed on the secondary fixing plate; the secondary fixing plate is locked and fixed with the connection fusion body by using the jackscrew; and the main fixing plate and the secondary fixing plate are matched with the spinous processes and a vertebral plate which are fitted with each other. When the interspinous fusion device is used, a hole is formed between the diseased spinous processes, the connection fusion body which is arranged on the main fixing plate is inserted into the space between the spinous processes from one side of the spinous process, and the secondary fixing plate is arranged on the connection fusion body from the other side of the spinous process. The interspinous fusion device has a reasonable structure, is convenient to mount, can be used reliably and safely, causes little trauma to a body, and can effectively realize interspinous fixing and promote the interspinous fusion.
Description
Technical field
The present invention relates to a kind of orthopaedics medical apparatus and instruments, specifically a kind of Interspinous fusion device for the treatment of human spine's disease.
Background technology
We know, in posterior lower lumbar vertebral surgery, lumbar diskectomy, bone-graft fusion are aided with the interior fixing common method that has become treatment lower lumbar spine degenerative disease.Thoroughly decompression and reliably bone fusion are the keys of successful surgery, fixedly are the important means that obtains firm bone fusion and be aided with interior.It is fixing in being aided with between spinous process by bone grafting between spinous process merging between spinous process, to recover an integration technology of corresponding sections stability.Cobey had designed fusion device Wilson plate between first spinous process in 1971, and was successfully used to treat the spine disorderses such as tuberculosis of spine, fracture of cervical vertebra.Document shows, merging between spinous process not only to increase the fusion area of lumbar vertebra, and then has increased the stability of Fusion levels, and operation technique is simple, goes out the advantages such as insufficiency of blood.The inner fixer that adopts is various, because the form of various inner fixers is different, structure is different, all has again very high specificity, and certain limitation is arranged in clinical practice.Traditional is fixing, and the operation technique difficulty is complicated, and operation wound is large, and is that non-fusion is fixed mostly, affects the fusion surgery effect.At present cervical arc root screw internal fixing system (PS) is the most commonly used, but exists operation to appear the shortcomings such as risk, the operating time of complicated, nerve root and dural sac damage be long.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of rational in infrastructure, easy for installation, uses reliably, and is simple to operate, and safety is little to the wound of body, realizes the Interspinous fusion device that merges on fixing basis.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of Interspinous fusion device, comprise main fixing head, secondary fixing head, jackscrew, it is characterized in that: described main fixing head is positioned at a side of two adjacent spinous, which is provided with the connection fusant of projection, described connection fusant inserts the cylinder mould that interspinal part is hollow, bone implant is housed in the cylinder mould, secondary fixing head is positioned at the opposite side of two adjacent spinous, which is provided with one with the installing hole and the fixing hole that cooperates with jackscrew that are connected fusant and are complementary, secondary fixing head by jackscrew be connected fusant and be locked; Spinous process and the vertebral plate of described main fixing head and secondary fixing head and applying match.
The face that main fixing head of the present invention and secondary fixing head and spinous process are fitted is provided with tapered locking pin.Can penetrate the spinous process both sides after the pressurization, realize interspinal fixing.
Installing hole one side is provided with a boss on the secondary fixing head of the present invention, which is provided with a fixing hole that cooperates with jackscrew, and the face that connects corresponding fixing hole on the fusant is the flank of tooth, secondary fixing head by jackscrew be connected the fusant flank of tooth and lock fixing.
The installing hole of secondary fixing head of the present invention is provided with the gap at secondary fixing head length direction with being connected between the fusant, forms 0 ~ 8 ° adjustment angle between main fixing head and the secondary fixing head.Like this, the spinous process of main fixing head and secondary fixing head and different-thickness or different angles can better be fitted.
When the present invention uses, between the pathological changes spinous process, punch, the connection fusant on the main fixing head is inserted between spinous process from spinous process one side, more secondary fixing head is installed to main fixing head from the spinous process opposite side and connect fusant, by jackscrew locking two fixing heads are fixed together.Inserting interspinal part on the main fixing head is the wire mesh cage structures of hollow, and bone implant is housed in the cylinder mould, is conducive to merge between spinous process.Main fixing head and secondary fixing head can be 0 ~ 8 ° angle, and the spinous process of fixing head and different-thickness or different angles can both better be fitted.Against existing technologies, the present invention is rational in infrastructure, and is easy for installation, uses reliably, simple to operate, and safety is little to the wound of body, can effectively realize fixing between spinous process and the promotion fusion, is a kind of desirable Interspinous fusion device.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to cutaway view.
Fig. 3 is the structural representation of the secondary fixing head of the present invention.
Fig. 4 is the schematic diagram of a kind of installment state of the present invention.
Label among the figure is: 1. main fixing head, and 2. secondary fixing head, 3. jackscrew, 11. tapered locking pins, 12. connect fusants, 121. cylinder moulds, 122. flank of tooth, 123. bone implants, 21. tapered locking pins, 22. installing holes, 23. boss, 24. fixing holes.
The specific embodiment
From Fig. 1, Fig. 2, can find out, a kind of Interspinous fusion device, comprise main fixing head 1, secondary fixing head 2, jackscrew 3, described main fixing head 1 is positioned at a side of two adjacent spinous, which is provided with the connection fusant 12 of projection, it is the cylinder mould 121 of hollow that described connection fusant 12 inserts interspinal part, and bone implant 123 is housed in the cylinder mould 121, and described bone implant 123 can be artificial bone, from body bone, allograph bone.Described secondary fixing head 2 is positioned at the opposite side of two adjacent spinous, which is provided with one with the installing hole 22 and the fixing hole 24 that cooperates with jackscrew 3 that are connected fusant 12 and are complementary, secondary fixing head 2 by jackscrew 3 be connected fusant 12 and be locked; Described main fixing head 1 and secondary fixing head 2 match with spinous process and the vertebral plate of fitting.
Main fixing head 1 of the present invention is provided with tapered locking pin 11 with the face that spinous process is fitted, and secondary fixing head 2 is provided with tapered locking pin 21 with the face that spinous process is fitted.Tapered locking pin 11,21 can penetrate the spinous process both sides after the pressurization, realizes interspinal fixing.
Installing hole one side is provided with a boss 23 on the secondary fixing head 2 of the present invention, boss 23 is provided with a fixing hole that cooperates with jackscrew 24, the face that connects corresponding fixing hole on the fusant 12 is the flank of tooth 122, secondary fixing head 2 by jackscrew 3 be connected the fusant flank of tooth 122 and lock fixing.
When the present invention uses, between the pathological changes spinous process, punch, main fixing head 1 is positioned at a side of two adjacent spinous, connection fusant 12 on it is inserted between spinous process from spinous process one side, again secondary fixing head 2 is installed to main fixing head from the spinous process opposite side and connect fusant 12, tapered locking pin 11,21 can penetrate the spinous process both sides after the pressurization, realizes interspinal fixing.By jackscrew 3 lockings, two fixing heads are fixed together.Main fixing, inserting interspinal part on 1 is the wire mesh cage structures of hollow, in the cylinder mould 121 bone implant is housed, and is conducive to merge between spinous process.Main fixing head and secondary fixing head can be 0 ~ 8 ° angle, and the spinous process of main fixing head and secondary fixing head and different-thickness or different angles can both better be fitted.
The present invention is rational in infrastructure, and is easy for installation, uses reliably, simple to operate, and safety is little to the wound of body, can effectively realize fixing between spinous process and the promotion fusion, is a kind of desirable Interspinous fusion device.The present invention is suitable for installing between spinous process fixing, is used for fixing fusion the between spinous process.
Claims (4)
1. Interspinous fusion device, comprise main fixing head, secondary fixing head, jackscrew, it is characterized in that: described main fixing head is positioned at a side of two adjacent spinous, which is provided with the connection fusant of projection, described connection fusant inserts the cylinder mould that interspinal part is hollow, bone implant is housed in the cylinder mould, secondary fixing head is positioned at the opposite side of two adjacent spinous, which is provided with one with the installing hole and the fixing hole that cooperates with jackscrew that are connected fusant and are complementary, secondary fixing head by jackscrew be connected fusant and be locked; Spinous process and the vertebral plate of described main fixing head and secondary fixing head and applying match.
2. Interspinous fusion device according to claim 1 is characterized in that: the face that described main fixing head and secondary fixing head and spinous process are fitted is provided with tapered locking pin.
3. Interspinous fusion device according to claim 1, it is characterized in that: installing hole one side is provided with a boss on the described secondary fixing head, which is provided with the described fixing hole that cooperates with jackscrew, the face of corresponding fixing hole is the flank of tooth on the described connection fusant, secondary fixing head by jackscrew be connected the fusant flank of tooth and lock fixing.
4. Interspinous fusion device according to claim 1 is characterized in that: the installing hole of described secondary fixing head is provided with the gap at secondary fixing head length direction with being connected between the fusant, forms 0 ~ 8 ° adjustment angle between main fixing head and the secondary fixing head.
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CN 201110449991 CN102397097B (en) | 2011-12-29 | 2011-12-29 | Interspinous fusion device |
Applications Claiming Priority (1)
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CN 201110449991 CN102397097B (en) | 2011-12-29 | 2011-12-29 | Interspinous fusion device |
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CN102397097A CN102397097A (en) | 2012-04-04 |
CN102397097B true CN102397097B (en) | 2013-01-30 |
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Cited By (1)
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TWI611792B (en) * | 2015-08-26 | 2018-01-21 | Intervertebral fusion device for positioning and combining vertebrae |
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CN102599969A (en) * | 2012-04-16 | 2012-07-25 | 石门县人民医院 | Human single vertebral internal reduction fixing device |
CN103932773A (en) * | 2014-04-14 | 2014-07-23 | 北京市奥斯比利克新技术开发有限公司 | Dual fixing device for spinous process vertebral plate |
KR101647450B1 (en) * | 2014-10-20 | 2016-08-10 | 주식회사 메드릭스 | Interspinous dynamic implant |
KR101647446B1 (en) * | 2014-10-20 | 2016-08-10 | 주식회사 메드릭스 | Interspinous fusion implant |
CN106943214A (en) * | 2016-11-30 | 2017-07-14 | 重庆润泽医药有限公司 | A kind of light-duty Invasive lumbar fusion device |
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CN106943186A (en) * | 2017-04-10 | 2017-07-14 | 苏州海斯凯医疗科技有限公司 | Fixator between flexible spinous process |
CN107013686A (en) * | 2017-04-24 | 2017-08-04 | 湖州师范学院 | A kind of electronic water-regulating machine structure of self-locking and braking with medicine storehouse |
CN107131308A (en) * | 2017-04-24 | 2017-09-05 | 湖州师范学院 | A kind of supersonic sounding of self-locking and braking automatically controls ball valve mechanism |
CN107013738A (en) * | 2017-04-24 | 2017-08-04 | 湖州师范学院 | A kind of ball valve mechanism for following closely pin brake band displacement monitoring |
CN107131341A (en) * | 2017-04-24 | 2017-09-05 | 湖州师范学院 | A kind of electronic water-regulating machine structure of self-locking and braking |
CN109009381A (en) * | 2018-07-17 | 2018-12-18 | 常州集硕医疗器械有限公司 | Fusing device is fixed between spinous process |
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---|---|---|---|---|
US5496318A (en) * | 1993-01-08 | 1996-03-05 | Advanced Spine Fixation Systems, Inc. | Interspinous segmental spine fixation device |
CN100337600C (en) * | 2002-05-17 | 2007-09-19 | 华沙整形外科股份有限公司 | Device for fixation of spinous processes |
CN101366655A (en) * | 2007-08-16 | 2009-02-18 | 上海锐植医疗器械有限公司 | Dynamic spinous process stabilizer |
CN202376213U (en) * | 2011-12-29 | 2012-08-15 | 山东威高骨科材料有限公司 | Interspinous fusion device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7621938B2 (en) * | 2004-01-15 | 2009-11-24 | Warsaw Orthopedic, Inc. | Spinal implant construct and method for implantation |
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2011
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5496318A (en) * | 1993-01-08 | 1996-03-05 | Advanced Spine Fixation Systems, Inc. | Interspinous segmental spine fixation device |
CN100337600C (en) * | 2002-05-17 | 2007-09-19 | 华沙整形外科股份有限公司 | Device for fixation of spinous processes |
CN101366655A (en) * | 2007-08-16 | 2009-02-18 | 上海锐植医疗器械有限公司 | Dynamic spinous process stabilizer |
CN202376213U (en) * | 2011-12-29 | 2012-08-15 | 山东威高骨科材料有限公司 | Interspinous fusion device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI611792B (en) * | 2015-08-26 | 2018-01-21 | Intervertebral fusion device for positioning and combining vertebrae |
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