CN202397574U - Anterior three-dimensional reduction instrument for cervical vertebra bilateral facet joint dislocation - Google Patents
Anterior three-dimensional reduction instrument for cervical vertebra bilateral facet joint dislocation Download PDFInfo
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- CN202397574U CN202397574U CN2011202907284U CN201120290728U CN202397574U CN 202397574 U CN202397574 U CN 202397574U CN 2011202907284 U CN2011202907284 U CN 2011202907284U CN 201120290728 U CN201120290728 U CN 201120290728U CN 202397574 U CN202397574 U CN 202397574U
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- cervical vertebra
- vertebral body
- reduction
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- instrument
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Abstract
The utility model relates to the field of medical instrument technology. A traditional surgical method for cervical vertebra bilateral facet joint dislocation adopts posterior open reduction, decompression and internal fixation fusion and a proper three-dimensional reduction instrument is not available. An anterior three-dimensional reduction instrument for the cervical vertebra bilateral facet joint dislocation comprises tree transvertebra screws (1), a distraction reduction system comprising three sleeves (21), a distraction rod (22), a lift rod (23), and a turbine (24), and accessories comprising a cervical vertebra distraction screw screwdriver, a switching head and a double-screw sleeve. The anterior three-dimensional reduction instrument for the cervical vertebra bilateral facet joint dislocation is capable of preventing complication caused by the posterior reduction technology, reduces risks of secondary striking injury on the spinal cord during reduction, and enables anterior cervical reduction fusion technique to become a routine surgical technique which is easy, safe, reliable and feasible.
Description
Technical field
This utility model relates to technical field of medical instruments, is specifically related to a kind of three-dimensional reduction instrument in the preceding road of cervical vertebra bilateral zygapophysial joints dislocation row that is applicable to.
Background technology
Acute bilateral articular process dislocation 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 RID, goes up between the next vertebral body and dislocates.Because the rear articular process of cervical vertebra is " back-to-back " interlocking deformity, the feasible very difficulty that resets.
The treatment prefered method is that lasting skull traction resets under the monitoring of X line, recovers the cervical vertebra normal sequence as far as possible.But it is only about 22% that bibliographical information resets to power, and therefore most of patient still need go the open reduction internal fixation; And hyper-traction possibly 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.)
Tradition cervical vertebra bilateral zygapophysial joints dislocation operation method is for adopting way of escape open reduction, decompression and internal fixation fusion.Can under direct-view, reset in the art, if reset difficulty, can the superior articular process of dislocation interlocking be done the part excision, stretch into little joint space with blunt periosteal elevator, slow sled is dialled and is made it to reset under traction.But the little joint dislocation of bilateral 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 possibly cause having damaged disruptive intervertebral disk hernia, even takes off in the canalis spinalis, produces the deterioration that the damage of spinal cord two-hit causes patient function of nervous system symptom.The dislocation of bibliographical information bilateral zygapophysial joints merges the incidence rate about 7%～42% that intervertebral disk hernia pushes spinal cord injury once more.The way of escape resets to fix and lacks simple and effective fixing means in addition, often need fix a plurality of sections, and the articular facets area is little; Merge back short of reliable bone property fusion; Trachelokyphosis at a specified future date deformity in causing easily, Wry Neck discomfort etc., that part patient merges is preceding, center pillar is unstable; Still need implement preceding road bone-graft fusion internal fixation, so effect is unsatisfactory.
The dislocation of preceding road open reduction treatment bilateral zygapophysial joints is compared with way of escape open reduction, and it has the following advantages: excision dislocation sections intervertebral disc in advance in the art, and can avoid in the reseting procedure intervertebral disk hernia or deviate from and cause two-hit to hinder spinal cord; Merge between dislocation sections vertebral body and can obtain stronger reliable bone property fusion and improve fusion rate; Operation only need be merged a sections, can obviously reduce the remote effect to the cervical vertebra function; Anterior plate can be avoided the generation of kyphosis deformity to effective fixed support of front pillar.The advantage that preceding road resets is obvious, but because the difficulty that resets causes that mainly due to the little locked joint in rear clinical all the time shortage effective means is implemented rear little joint release.Once the someone adopted through preceding road and resetted, and periosteal elevator stretches into intervertebral space in the art, as balance pivot, strengthened prying and pulling strength with the next vertebral body gradually, and the vertebral body of dislocating with finger press makes it to reset.But this reduced method operation too blindly, possibly cause more serious two-hit to hinder to spinal cord.
Having many clinical position persons to attempt using the Caspar dilator to carry out preceding road in recent years resets.The Caspar dilator is that throat road routine is in order to strut the intervertebral space apparatus; As shown in Figure 1, form by two vertebral body nails and dilator, follow closely with the fixing dislocation of vertebral body nail sections vertebral body in the art; Utilize the grasp effect solid of vertebral body nail to vertebral body; Utilization struts pole pair dislocation gap and continues slowly traction, utilizes that the vertebral body nail is terminal to be become the angle to make the spinal column rear pillar obtain stretching to strut power, little joint is obtained gradually " release " the back acquisition resets; Because the process that struts slowly continues to carry out, improved operation safety greatly simultaneously.But lacking three-dimensional strength during owing to reset resets; If still need carry out machinery to upper sections vertebral body in can not reduced operation pushes or draws head and reset; Increase the risk that the spinal cord two-hit is hindered, strutted technology owing to lack effective spinal column center pillar in addition, thereby made the spinal column rear pillar obtain the little joint " release " of the limited restriction of the power of opening interlocking; Significantly reduced the successful possibility of operative reduction, this technical application still obviously is restricted.
Still there is not the preceding road of the cervical vertebra of being applicable to bilateral zygapophysial joints dislocation row three-dimensional reduction instrument system at present.
Summary of the invention
The purpose of this utility model provide a kind of safe, reliably, be applicable to the three-dimensional reattachment surgery apparatus on the preceding road of cervical vertebra bilateral zygapophysial joints dislocation row.
This utility model increases the turbine type joint to vertebral body nail bar on the basis of traditional C aspar dilator, become angle brace to open to reach the centering rear pillar, is loosened in the little joint of rear pillar interlocking 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, hindered, thereby improved the safety of operation greatly to avoid spinal cord to receive two-hit; Apparatus adopts parallel two nail design to the grasping force of vertebral body when resetting for increase, simultaneously adjacent two segment vertebral body is all fixed.
This utility model provides the preceding road of a kind of cervical vertebra bilateral zygapophysial joints dislocation row three-dimensional reduction instrument; Form 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 in sleeve, strut bar, lifting rod, turbine and form.One in sleeve is directly connected in and struts the bar end, and two sleeves are fixed in lifting rod in addition, then lifting rod are fixed in turbine, and turbine is connected to and struts bar.
The distraction reduction system also comprises 1 knob, and the knob connection struts bar, through this knob, will strut bar and slowly strut.
Adnexa struts nail screwdriver, conversion head and two screw sleeve by cervical vertebra to be formed, and cervical vertebra struts the nail screwdriver in order to shoot the vertebral body nail, can be allen driver behind the connection conversion head, in order to rotate lifting rod and turbine.Two screw sleeves are used for one piece of vertebral body nail vertical fixing in going up a sections vertebral body again and being parallel to upper epicentral vertebral body nail.Adnexa all with the supporting use of distraction reduction system design.
During clinical use; Strut the nail screwdriver with cervical vertebra earlier 1 piece of vertebral body is followed closely vertical fixing in the next vertebral body of dislocation sections; Other gets 1 piece of vertebral body nail vertical fixing in upper vertebral body, uses the two screw sleeves in the adnexa that another piece vertebral body nail vertical fixing is followed closely in going up a sections vertebral body again and being parallel to upper epicentral vertebral body.Use the turbine regulating action that three pieces of vertebral body nails are inserted in the distraction reduction system, tip of screw use lock nut will strut rod sleeve and be fixed in the vertebral body nail.Connect conversion head with sleeve, rotary turbine also slowly struts to angled fixed vertebral body nail joint and is bordering on parallel back perspective, rotates lifting rod according to the perspective location and will dislocate upward that the sections vertebral body is reset to normal sequence.
This utility model can be processed the different size model as required.
The preceding road of the dislocation of cervical vertebra of this utility model positor; The complication that the design of apparatus and application will avoid way of escape resetting technique to be brought; Reduce the risk of in the reseting procedure spinal cord two-hit being hindered, the throat road is resetted, and integration technology becomes simply, safety, the reliable routine operation that is prone to row are technological.
Description of drawings
Fig. 1 is a Caspar dilator distraction reduction sketch map.
Fig. 2 is the positor Facad structure sketch map of this utility model.
Fig. 3 is the positor side structure sketch map of this utility model.
Fig. 4 is this utility model structural representation of deciding nut vertebral body nail with lock.
Fig. 5 is the structural representation that this utility model cervical vertebra struts the nail screwdriver.
Fig. 6 is the structural representation of this utility model conversion head.
Fig. 7 is the two telescopic structural representations of screw of this utility model.
Symbol description among the 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
Combine embodiment and accompanying drawing at present, this utility model is further described, but the enforcement of this utility model is not limited in this.
Embodiment 1:
The three-dimensional reduction instrument in the preceding road of a kind of cervical vertebra bilateral zygapophysial joints dislocation row; Like Fig. 2, shown in 3; Comprise that three pieces of vertebral body nails and a distraction reduction system form, each vertebral body is followed closely 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 in sleeve, strut bar 22, lifting rod 23, turbine 24 and form.One in sleeve is directly connected in the dilator end, and two sleeves are fixed in lifting rod in addition, then lifting rod are fixed in turbine, and turbine is connected to and struts bar.Strutting bar through knob 4 rotations slowly struts.
Adnexa struts the nail screwdriver like Fig. 5, shown in 6 and 7 by cervical vertebra, conversion head, and two screw sleeves are formed.Cervical vertebra struts the nail screwdriver in order to shoot the vertebral body nail, can be allen driver behind 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 is followed closely vertical fixing in the next vertebral body of dislocation sections; Other gets 1 piece of vertebral body nail vertical fixing in upper vertebral body, uses the two screw sleeves in the adnexa that another piece vertebral body nail vertical fixing is followed closely in going up a sections vertebral body again and being parallel to upper epicentral vertebral body.Use the turbine regulating action that three pieces of vertebral body nails are inserted in the distraction reduction system, tip of screw use lock nut will strut rod sleeve and be fixed in the vertebral body nail.Connect conversion head with sleeve, rotary turbine also slowly struts to angled fixed vertebral body nail joint and is bordering on parallel back perspective, rotates lifting rod according to the perspective location and will dislocate upward that the sections vertebral body is reset to normal sequence.
Embodiment 2:
Like the patient is the tall and big adult male of build, the preceding road of a kind of dislocation of cervical vertebra positor, other structures such as embodiment 1, each vertebral body ailhead end band 16mm length screw thread wherein.
Claims (3)
1. the three-dimensional reduction instrument in the preceding road of cervical vertebra bilateral zygapophysial joints dislocation row; It is characterized in that this reduction instrument is made up 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, tail end is threaded with fixedly locked nut (3); The distraction reduction system by (21) three in sleeve, strut bar (22), lifting rod (23) and turbine (24) and form, one in sleeve is directly connected in and struts the bar end, two sleeves are fixed in lifting rod in addition, lifting rod is fixed in turbine, turbine is connected to and struts bar; Adnexa struts nail screwdriver, conversion head and two screw sleeve by cervical vertebra and forms.
2. the three-dimensional reduction instrument in the preceding road of a kind of cervical vertebra bilateral zygapophysial joints dislocation row according to claim 1 is characterized in that the screw thread of vertebral body nail (1) head end band 14mm length wherein.
3. the three-dimensional reduction instrument in the preceding road of a kind of cervical vertebra bilateral zygapophysial joints dislocation row according to claim 1 and 2 is characterized in that distraction reduction system wherein also comprises knob (4), and knob (4) connection struts bar (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202907284U CN202397574U (en) | 2011-08-11 | 2011-08-11 | Anterior three-dimensional reduction instrument for cervical vertebra bilateral facet joint dislocation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202907284U CN202397574U (en) | 2011-08-11 | 2011-08-11 | Anterior three-dimensional reduction instrument for cervical vertebra bilateral facet joint dislocation |
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| Publication Number | Publication Date |
|---|---|
| CN202397574U true CN202397574U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202907284U Expired - Fee Related CN202397574U (en) | 2011-08-11 | 2011-08-11 | Anterior three-dimensional reduction instrument for cervical vertebra bilateral facet joint dislocation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415912A (en) * | 2011-08-11 | 2012-04-18 | 中国人民解放军第二军医大学 | Cervical vertebra dislocation anterior approach restorer |
| US9907582B1 (en) | 2011-04-25 | 2018-03-06 | Nuvasive, Inc. | Minimally invasive spinal fixation system and related methods |
| CN112656458A (en) * | 2020-11-27 | 2021-04-16 | 中国人民解放军空军军医大学 | Fusion system device under spinal endoscope |
-
2011
- 2011-08-11 CN CN2011202907284U patent/CN202397574U/en not_active Expired - Fee Related
Cited By (6)
| 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 |
| US10716600B1 (en) | 2011-04-25 | 2020-07-21 | Nuvasive, Inc. | Minimally invasive spinal fixation system |
| US11596453B2 (en) | 2011-04-25 | 2023-03-07 | Nuvasive, Inc. | Minimally invasive spinal fixation system |
| CN102415912A (en) * | 2011-08-11 | 2012-04-18 | 中国人民解放军第二军医大学 | Cervical vertebra dislocation anterior approach restorer |
| CN112656458A (en) * | 2020-11-27 | 2021-04-16 | 中国人民解放军空军军医大学 | Fusion system device under spinal endoscope |
| CN112656458B (en) * | 2020-11-27 | 2022-08-30 | 中国人民解放军空军军医大学 | Fusion system device under spinal endoscopy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20150811 |
|
| EXPY | Termination of patent right or utility model |