CN102397097B - Interspinous fusion device - Google Patents

Interspinous fusion device Download PDF

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Publication number
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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CN 201110449991
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CN102397097A (en
Inventor
于秀淳
汪清
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Shandong Weigao Orthopedic Materials Co Ltd
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Shandong Weigao Orthopedic Materials Co Ltd
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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

Interspinous fusion device
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.
Connection fusant 12 of the present invention can be cylindrical, also can be elliptical cylinder-shape or other shape.Connect on the fusant 12 that the face of fixing hole is the flank of tooth 122 on the corresponding secondary fixing head 2.The installing hole 22 of secondary fixing head 2 of the present invention is provided with the gap at secondary fixing head length direction with being connected between the fusant 12, like this, secondary fixing head 2 can rotate up and down around connecting fusant 12 low-angles in the longitudinal direction, forms 0 ~ 8 ° adjustment angle between main fixing head 1 and the secondary fixing head 2.Can better fit thereby can make on the spinous process of main fixing head 1 and secondary fixing head 2 and different-thickness or different angles.
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.
CN 201110449991 2011-12-29 2011-12-29 Interspinous fusion device Active CN102397097B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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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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
CN106870755A (en) * 2017-03-09 2017-06-20 湖州师范学院 A kind of swing arm nail braking cork ball valve mechanism
CN106949248A (en) * 2017-03-09 2017-07-14 湖州师范学院 A kind of wooden water transfer mechanism of swing arm nail self-locking and braking
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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CN202376213U (en) * 2011-12-29 2012-08-15 山东威高骨科材料有限公司 Interspinous fusion device

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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

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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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