CN102415912B - Cervical vertebra dislocation anterior approach restorer - Google Patents
Cervical vertebra dislocation anterior approach restorer Download PDFInfo
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- CN102415912B CN102415912B CN 201110229314 CN201110229314A CN102415912B CN 102415912 B CN102415912 B CN 102415912B CN 201110229314 CN201110229314 CN 201110229314 CN 201110229314 A CN201110229314 A CN 201110229314A CN 102415912 B CN102415912 B CN 102415912B
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- cervical vertebra
- vertebral body
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- dislocation
- nail
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Abstract
The invention relates to the technical field of medical equipment. A posterior approach open restoration, decompression and internal fixation fusion method is adopted for a traditional cervical bilateral zygapophyseal joint dislocation surgery, and no suitable restorer system exists currently. The invention provides a cervical vertebra dislocation anterior approach restorer which consists of three centrum nails (1), a distraction reduction system and accessories, the distraction reduction system consists of three sleeves (21), a distraction rod (22), a lifting rod (23) and a turbine (24), and the accessories include a cervical vertebra distraction nail screw driver, a converter and a double-screw sleeve. The design and the application of the cervical vertebra dislocation anterior approach restorer can avoid complicating diseases brought by the posterior restoring technology and reduce the risk of secondary strike injury of spinal cord in the restoring process, so an anterior cervical approach restoring fusion technology becomes a simple, safe, reliable and feasible conventional surgical technology.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of three-dimensional reduction instrument in the front road of cervical bilateral zygapophysial joints dislocation row that is applicable to.
Background technology
The dislocation of acute bilateral articular process is common spinal injury, and its damage characteristic is interlocking dislocation after jumping appears in the little joint of rear pillar when flexing is damaged, and causes the place ahead ruptured intervertebral disc, dislocates between upper the next vertebral body.Because the rear articular process of cervical vertebra is " back-to-back " interlocking deformity, make reset very difficult.
The treatment prefered method is that the lower lasting skull traction of x-ray monitoring resets, and recovers as far as possible the cervical vertebra normal sequence.But bibliographical information resets to power only approximately 22%, and therefore most of patient still needs the row internal fixation; And hyper-traction may cause spinal cord injury to increase the weight of and the soft tissue tension injury, and the later stage cervical vertebra is still left over the cervical vertebra instability shape.(see Sears W, Fazl M.Prediction of stability of cervical spine managed in the halo vest and indications for surgical intervention.Neurosurg1990; 72:426～432.)
Open posterior resets tradition cervical bilateral zygapophysial joints dislocation operation method in order to adopt, decompression and interior fixedly fusion.Can reset under direct-view in art, if reset difficulty, the superior articular process of dislocation interlocking can be made Partial Resection, stretch into little joint space with blunt periosteal elevator, slow sled is dialled and is made it to reset under traction.But the bilateral dislocation is the rear pillar soft tissue injury not only, and often with anterior longitudinal ligament, the damage of posterior longitudinal ligament and intervertebral disc.Therefore the rear operative approach resets and may cause having damaged the intervertebral disk hernia that breaks, and even takes off in canalis spinalis, produces the deterioration that the damage of spinal cord two-hit causes the neurological symptom.Bibliographical information bilateral facet joint dislocation merges incidence rate that intervertebral disk hernia pushes spinal cord injury again approximately 7%～42%.The way of escape resets to fix and lacks simple and effective fixing means in addition, often need fixing a plurality of sections, the articular facets area is little, lack reliable bone fusion after merging, easily cause middle cervical kyphosis at a specified future date, Wry Neck discomfort etc., the some patients were merging is front, center pillar is unstable, still need implement front road Iliac bone graft fusion and internal fixation, so effect is unsatisfactory.
Front road open reduction treatment bilateral facet joint dislocation is compared with way of escape open reduction, and it has the following advantages: excision dislocation sections intervertebral disc in advance in art, and can avoid in reseting procedure intervertebral disk hernia or deviate from spinal cord is caused the two-hit wound; Merge between dislocation sections vertebral body and can obtain stronger reliable bone fusion and improve fusion rate; Operation only need be merged a sections, can obviously reduce the remote effect to cervical functional; Anterior plate can be avoided the generation of kyphosis deformity to effective fixed support of front pillar.The advantage that front road resets is apparent, but because the difficulty that resets causes mainly due to the little locked joint in rear, clinical shortage effective means is implemented rear little joint release all the time.Once someone adopted through front road and resetted, and in art, periosteal elevator stretches into intervertebral space, as balance pivot, strengthened gradually prying and pulling strength with the next vertebral body, and the vertebral body of dislocating with finger press makes it to reset.But this reduced method operation too blindly, may cause more serious two-hit wound to spinal cord.
Having in recent years many clinical position persons to attempt using the Caspar dilator to carry out front road resets.The Caspar dilator is that the anterior approach routine is in order to strut the intervertebral space apparatus, as shown in Figure 1, formed by two vertebral body nails and dilator, follow closely with the fixing dislocation of vertebral body nail sections vertebral body in art, utilize the grasp effect solid to vertebral body of vertebral body nail, utilization struts pole pair dislocation gap and continues slowly to draw, utilize vertebral body nail end angulation to make the spinal column rear pillar obtain stretching and strut power, little joint is obtained gradually " release " obtain afterwards to reset, because the process that struts slowly continues to carry out, greatly improved operation safety simultaneously.But lacking three-dimensional strength owing to resetting resets, if needing still in can not reduced operation that upper sections vertebral body is carried out machinery pushes or draws head and reset, increased the risk of spinal cord two-hit wound, strut technology owing to lacking effective spinal column center pillar in addition, thereby make the spinal column rear pillar obtain the little joint " release " of the limited restriction of the power of opening interlocking, significantly reduced the possibility of operative reduction success, this technology is used and still obviously is restricted.
There is no at present the front road of the cervical bilateral zygapophysial joints dislocation row three-dimensional reduction instrument system that is applicable to.
Summary of the invention
The purpose of this invention is to provide a kind of safe, reliably, be applicable to the three-dimensional reattachment surgery apparatus on the front road of dislocation of cervical vertebra.
The present invention increases the turbine type joint to vertebral body nail bar on the basis of traditional C aspar dilator, strut to reach centering rear pillar angulation, is loosened in rear pillar interlocking little joint and resets, and reaches the dislocation of cervical vertebra simple purpose that resets; In implementing the dislocation reseting procedure, all adopted the screw thread rotation propulsion mode slowly to apply all mechanical forces simultaneously, avoided the impact of moment mechanical forces, be subject to the two-hit wound to avoid spinal cord, thereby greatly improved the safety of operation; The grasping force of apparatus to vertebral body when resetting for increase adopts parallel two nail design, simultaneously adjacent two segment vertebral body all is fixed.
The invention provides a kind of cervical vertebra dislocation anterior approach restorer, formed by vertebral body nail, distraction reduction system and adnexa, totally 3 pieces of vertebral body nails, each vertebral body ailhead end band 12mm～16mm length screw thread, preferred 14mm length screw thread, tail end is threaded with fixedly locked nut.The distraction reduction system by 3, sleeve, strut bar, lifting rod, turbine and form.One, sleeve is directly connected in and struts the bar end, and another two sleeves are fixed in lifting rod, then lifting rod are fixed in turbine, and turbine is connected to and struts bar.
The distraction reduction system also comprises 1 knob, by this knob, will strut bar and slowly strut.
Adnexa struts nail screwdriver, conversion head and two screw sleeve by cervical vertebra and forms, and cervical vertebra struts the nail screwdriver in order to shoot the vertebral body nail, can be allen driver after the connection conversion head, in order to rotate lifting rod and turbine.Two screw sleeves are used for one piece of vertebral body nail vertically is fixed in to be gone up a sections vertebral body again and is parallel to upper epicentral vertebral body nail.Adnexa all supports the use with the distraction reduction system design.
During clinical use, first strut the nail screwdriver with cervical vertebra 1 piece of vertebral body nail vertically is fixed in the next vertebral body of dislocation sections, separately get 1 piece of vertebral body nail and vertically be fixed in upper vertebral body, the two screw sleeves in the use adnexa vertically are fixed in another piece vertebral body nail to be gone up a sections vertebral body again and is parallel to upper epicentral vertebral body nail.Use the turbine regulating action that three pieces of vertebral bodys nails are inserted in the distraction reduction system, tip of screw uses lock nut will strut rod sleeve to be fixed in the vertebral body nail.Connect conversion head with sleeve, rotary turbine also slowly struts to angled fixing vertebral body nail joint and is bordering on parallel rear perspective, rotates lifting rod according to Fluoroscopy location and will dislocate and go up the sections corpus vertebrae replacement to normal sequence.
The present invention can make the different size model as required.
Cervical vertebra dislocation anterior approach restorer of the present invention, the complication that the design of apparatus and application will avoid way of escape resetting technique to bring, reduce in reseting procedure the risk of spinal cord two-hit wound, anterior approach is resetted, and integration technology becomes simply, safety, reliable routine operation technology of easily going.
Description of drawings
Fig. 1 is Caspar dilator distraction reduction schematic diagram.
Fig. 2 is positor Facad structure schematic diagram of the present invention.
Fig. 3 is positor side structure schematic diagram of the present invention.
Fig. 4 is the structural representation of locking nut vertebral body nail of the present invention.
Fig. 5 is the structural representation that cervical vertebra of the present invention struts the nail screwdriver.
Fig. 6 is the structural representation of conversion head of the present invention.
Fig. 7 is the structural representation of the two screw sleeves of the present invention.
Symbol description in figure: 1, vertebral body nail; Distraction reduction system: 21, sleeve, 22, strut bar, 23, lifting rod, 24, turbine; 3, lock nut; 4, knob.
The specific embodiment
Now in conjunction with the embodiments and accompanying drawing, the invention will be further described, but enforcement of the present invention is not limited in this.
Embodiment 1:
A kind of cervical vertebra dislocation anterior approach restorer as shown in Fig. 2,3, comprises that three pieces of vertebral bodys nail and a distraction reduction system form, each vertebral body nail 1 head end band 14mm length screw thread, and tail end is threaded with fixedly locked nut 3 (as shown in Figure 4).The distraction reduction system by 21 3, sleeve, strut bar 22, lifting rod 23, turbine 24 and form.One, sleeve is directly connected in the dilator end, and another two sleeves are fixed in lifting rod, then lifting rod are fixed in turbine, and turbine is connected to and struts bar.Strutting bar by knob 4 rotations slowly struts.
Adnexa struts the nail screwdriver by cervical vertebra as shown in Fig. 5,6 and 7, conversion head, and two screw sleeves form.Cervical vertebra struts the nail screwdriver in order to shoot the vertebral body nail, can be allen driver after the connection conversion head, in order to rotate lifting rod and turbine.
Strut the nail screwdriver with cervical vertebra during use 1 piece of vertebral body nail vertically is fixed in the next vertebral body of dislocation sections, separately get 1 piece of vertebral body nail and vertically be fixed in upper vertebral body, the two screw sleeves in the use adnexa vertically are fixed in another piece vertebral body nail to be gone up a sections vertebral body again and is parallel to upper epicentral vertebral body nail.Use the turbine regulating action that three pieces of vertebral bodys nails are inserted in the distraction reduction system, tip of screw uses lock nut will strut rod sleeve to be fixed in the vertebral body nail.Connect conversion head with sleeve, rotary turbine also slowly struts to angled fixing vertebral body nail joint and is bordering on parallel rear perspective, rotates lifting rod according to Fluoroscopy location and will dislocate and go up the sections corpus vertebrae replacement to normal sequence.
Embodiment 2:
Be the tall and big adult male of build as the patient, a kind of cervical vertebra dislocation anterior approach restorer, other structures such as embodiment 1, each vertebral body ailhead end band 16mm length screw thread wherein.
Claims (2)
1. cervical vertebra dislocation anterior approach restorer, it is characterized in that this cervical vertebra dislocation anterior approach restorer is comprised of vertebral body nail, distraction reduction system and adnexa, wherein the vertebral body nail is (1) three piece, the screw thread of each vertebral body ailhead end band 12mm～16mm length, and tail end is threaded with fixedly locked nut (3); The distraction reduction system by (21) three, sleeve, strut bar (22), lifting rod (23) and turbine (24) and form, one, sleeve is directly connected in and struts the bar end, another two sleeves are fixed in lifting rod, and lifting rod is fixed in turbine, and turbine is connected to and struts bar; Adnexa struts nail screwdriver, conversion head and two screw sleeve by cervical vertebra and forms; Distraction reduction system wherein also comprises knob (4), and knob (4) connects and struts bar (22).
2. a kind of cervical vertebra dislocation anterior approach restorer according to claim 1 is characterized in that the screw thread of vertebral body nail (1) head end band 14mm length wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110229314 CN102415912B (en) | 2011-08-11 | 2011-08-11 | Cervical vertebra dislocation anterior approach restorer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110229314 CN102415912B (en) | 2011-08-11 | 2011-08-11 | Cervical vertebra dislocation anterior approach restorer |
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| CN102415912A CN102415912A (en) | 2012-04-18 |
| CN102415912B true CN102415912B (en) | 2013-11-06 |
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| CN 201110229314 Expired - Fee Related CN102415912B (en) | 2011-08-11 | 2011-08-11 | Cervical vertebra dislocation anterior approach restorer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9907582B1 (en) | 2011-04-25 | 2018-03-06 | Nuvasive, Inc. | Minimally invasive spinal fixation system and related methods |
| CN104644254B (en) * | 2015-02-13 | 2016-08-24 | 四川大学华西医院 | A kind of fracture-dislocation of cervical spine front road reduction fixation system |
| CN108904033A (en) * | 2018-09-11 | 2018-11-30 | 李国庆 | A kind of preceding road resetting apparatus of Cervical vertebra dislocation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0602351A1 (en) * | 1992-12-16 | 1994-06-22 | Howmedica GmbH | A device for repositioning vertebras of the human spine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201147359Y (en) * | 2008-02-01 | 2008-11-12 | 刘兰泽 | Anterior cervical positor |
| CN201208269Y (en) * | 2008-06-27 | 2009-03-18 | 常州奥斯迈医疗器械有限公司 | Lumbar vertebra posterior micro-wound approach strutting system |
| CN202397574U (en) * | 2011-08-11 | 2012-08-29 | 中国人民解放军第二军医大学 | Anterior three-dimensional reduction instrument for cervical vertebra bilateral facet joint dislocation |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0602351A1 (en) * | 1992-12-16 | 1994-06-22 | Howmedica GmbH | A device for repositioning vertebras of the human spine |
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| CN102415912A (en) | 2012-04-18 |
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Granted publication date: 20131106 Termination date: 20160811 |