CN203915054U - Research of anterior cervical intervertebral distracting positor - Google Patents
Research of anterior cervical intervertebral distracting positor Download PDFInfo
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- CN203915054U CN203915054U CN201420318661.4U CN201420318661U CN203915054U CN 203915054 U CN203915054 U CN 203915054U CN 201420318661 U CN201420318661 U CN 201420318661U CN 203915054 U CN203915054 U CN 203915054U
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- positor
- vertebral body
- intervertebral
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- anterior cervical
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Abstract
A kind of research of anterior cervical intervertebral distracting positor, cervical vertebra distraction reduction for anterior cervical operation, comprise: positor, for being connected with cervical vertebral body to be resetted, and drives described vertebral body to adjust reset to realize the correction along row to described vertebral body by the continuous moving of vertical direction; Dilator, be connected with described positor, by adjusting the horizontal direction position of described positor, make the intervertebral of described vertebral body longitudinally strut to articular process release to carry out intervertebral operation, or described vertebral body is adjusted after resetting and keeps the position of described positor to complete intervertebral fusion or fixing operation.This utility model can make the vertebral body of dislocation progressively reset, and reseting procedure is steady, accurate, controlled; Without inserting intervertebral space, operate, use safety, convenient; After corpus vertebrae replacement, interpyramidal reset relation can be kept until complete reliable intervertebral fixing operation, the reset of dislocation vertebral body can be in anterior cervical operation, completed, the misery of having exempted complementary procedure and having brought.
Description
Technical field
This utility model relates to a kind of medical surgical instrument, particularly a kind of research of anterior cervical intervertebral distracting positor that is applicable to anterior cervical operation.
Background technology
Anterior cervical operation is extensive in clinical practice, and intervertebral opening device is the indispensable instrument of anterior cervical operation, narrow intervertebral space can be strutted, and is convenient to excision and charges into intraspinal intervertebral disc and hyperosteogeny.Yet the intervertebral opening device of current clinical use only has the effect that longitudinally struts intervertebral space, do not possess the function of front and back dislocation between correcting vertebral.In fact, the articuli intervertebrales dislocation due to the reasons such as cervical spinal injury is much, and the difficulty that resets in operation, sometimes have to be blended in deformity position, or row neck posterior approach excises little joint to complete reset again; In addition, have the trend of dislocation again after reset, be often difficult to keep normal para-position, in carrying out interior fixing process, often causing resets loses.All not possess the function that resets and maintain reset relevant with current used instrument for these problems.
The patent No. is " ZL201020291578 ", name is called the disclosed intervertebral opening device of Chinese utility model patent of " a kind of intervertebral opening device ", and the patent No. is " ZL200910144311 ", name is called the disclosed distraction reduction device of Chinese invention patent of " lower cervical anterior distraction reduction device ", all longitudinally to strut after apparatus front end is inserted to intervertebral space, the effect of dislocation before and after not possessing between correcting vertebral, in order reaching, to correct cervical vertebra along the bad object of row, also to need to impose the external force on fore-and-aft direction.Yet this is difficult to realize in operation, and the dilator of insertion intervertebral space has limited interpyramidal seesawing.If removal dilator, due to the disappearance of intervertebral pulling strength, the little joint at rear easily returns back to interlocking deformity position, causes resetting unsuccessfully.In addition, insert that the dilator of intervertebral space is wrong slips into intraspinal risk, may cause serious spinal cord injury.
The patent No. is " ZL201320117736 ", name is called the disclosed cervical intervertebral dilator of Chinese utility model patent of " a kind of not damaged cervical intervertebral dilator ", comprises that the first distraction plate, first struts portion, the second distraction plate, second struts portion, track, kayser; The first distraction plate and the second distraction plate strut portion and second and strut that portion is stepped to be connected with first respectively, and first portion of strutting is fixed on one end of track, and second portion of strutting is socketed on track, and the arranged outside of track has kayser; On the lateral wall of the first distraction plate and the second distraction plate, be evenly provided with sawtooth; Track is band sawtooth and scale track; Kayser can finely block and be socketed on second on track and strut portion, facilitates the better measuring distance of medical personnel.But this intervertebral opening device only has the effect that longitudinally struts intervertebral space, do not possess the function of front and back dislocation between correcting vertebral.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of research of anterior cervical intervertebral distracting positor safe and convenient to use, the problems referred to above that exist to overcome prior art.
To achieve these goals, this utility model provides a kind of research of anterior cervical intervertebral distracting positor, wherein, comprising:
For being connected with cervical vertebral body to be resetted, and drive described vertebral body to adjust reset to realize the positor along the correction of row to described vertebral body by the continuous moving of vertical direction;
By adjusting the horizontal direction position of described positor, make the intervertebral of described vertebral body longitudinally strut to articular process release to carry out intervertebral operation, or described vertebral body keeps the position of described positor to complete the dilator of intervertebral fusion or fixing operation after adjusting and resetting, and is connected with described positor.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described positor comprises:
At least two release links, described release link comprises for being connected with described vertebral body and firmly controlling described vertebral body and hold and control end movement vertically to drive described vertebral body to adjust the mobile control end resetting described in controlling to complete the controlling of reset of described vertebral body;
The moving control mechanism of the reset by vertebral body described in described mobile control end regulating and controlling, is connected with described mobile control end.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described in control end for for the sharp-pointed spongy bone bolt structure of the front end that is screwed into described vertebral body and described vertebral body is firmly controlled.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described mobile control end is screw thread control structure, described mobile control structure is controlled the movement vertically of described release link and is controlled nut to control the reset of end movement vertically described in adjusting for screwing by the screw thread with described screw thread control structure, and nut and described screw thread control structure adaptation are controlled in described reset.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described release link also comprises for controlling the degree of depth that end enters described vertebral body described in controlling to avoid the depth stop structure of iatrogenic spinal cord injury.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described depth stop structure is a positive stop lug boss, described positive stop lug boss be arranged near described in control the position of end.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described positive stop lug boss is the described release link of the ring round ring boss of a week.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described release link also comprises for controlling the degree of depth that end enters described vertebral body described in controlling to avoid the depth stop structure of iatrogenic spinal cord injury, described depth stop structure is arranged on the below of described screw thread control structure, and described depth stop structure is a depth stop boss, a depth stop groove or a smooth pole face.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described dilator comprises:
Sleeve, correspondingly with described release link arranges and is sleeved in described release link;
Lock device, comprise support, latch and slide rail, be provided with the track passing through for described slide rail on described support, one end of described slide rail is connected with a described sleeve, described in another, sleeve is fixed on described support, and described latch is fixed on described support corresponding to described track.
Above-mentioned research of anterior cervical intervertebral distracting positor, wherein, described latch comprises fixed block, locking reed and swing handle, described fixed block is fixed on described support corresponding to described track, described swing handle is arranged on described fixed block, one end of described locking reed and described slide rail butt, the other end of described locking reed is connected with described swing handle.
Beneficial functional of the present utility model is:
The utlity model has the anterior approach intervertebral opening device of reset response, not only possess the basic function that struts, can also utilize the effect that lifts of positor that the vertebral body of dislocation is progressively resetted, reseting procedure is steady, accurate, controlled; Do not need to insert intervertebral space and operate, use safety, convenient; After corpus vertebrae replacement, this dilator and positor combined effect can keep interpyramidal reset relation until complete reliable intervertebral fixing operation.Under of the present utility model assisting, can in simple anterior cervical operation, complete the reset of dislocation vertebral body, the misery of having exempted complementary procedure and having brought.
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model one embodiment;
Fig. 2 is the release link structural representation of this utility model one embodiment;
Fig. 3 is that nut structure schematic diagram is controlled in the reset of this utility model one embodiment;
Fig. 4 is the dilator structural representation of this utility model one embodiment;
Fig. 5 A-Fig. 5 C is this utility model using state schematic diagram.
Wherein, Reference numeral
1 positor
11 release links
111 control end
112 move control end
113 depth stop structures
12 moving control mechanisms
2 dilators
21 sleeves
22 lock devices
221 supports
222 latch
2221 fixed blocks
2222 locking reeds
2223 swing handles
223 slide rails
224 tracks
3 vertebral bodys
4 articular processes
The specific embodiment
Below in conjunction with accompanying drawing, structural principle of the present utility model and operation principle are described in detail:
Referring to Fig. 1, Fig. 1 is the structural representation of this utility model one embodiment.Research of anterior cervical intervertebral distracting positor 1 of the present utility model, cervical vertebra distraction reduction for anterior cervical operation, comprise: positor 1, for being connected with cervical vertebral body 3 to be resetted, and drive described vertebral body 3 to adjust the correction to described vertebral body 3 suitable row with realization that resets by the continuous moving of vertical direction; Dilator 2, be connected with described positor 1, by adjusting the horizontal direction position of described positor 1, make the intervertebral of described vertebral body 3 longitudinally strut to articular process 4 releases to carry out intervertebral operation, or described vertebral body 3 is adjusted after resetting and keeps the positions of described positor 1 to complete intervertebral fusion or fixing operation.
Referring to Fig. 2, Fig. 2 is release link 11 structural representations of this utility model one embodiment.In the present embodiment, described positor 1 comprises: at least two release links 11, also can be set to as required 4, described release link 11 comprises controls end 111 and mobile control end 112, the described end 111 of controlling is for being connected with described vertebral body 3 and firmly controlling described vertebral body 3 to complete the reset of described vertebral body 3, be used for being screwed into described vertebral body 3 and described vertebral body 3 is firmly controlled, to complete, the operation such as strutting, lift.Described mobile control end 112 is controlled end 111 movement vertically to drive described vertebral body 3 to adjust reset described in controlling; Moving control mechanism 12, is connected with described mobile control end 112, by the reset of vertebral body 3 described in described mobile control end 112 regulating and controlling.
Described release link 11 also can comprise depth stop structure 113, described in controlling, controls the degree of depth that end 111 enters described vertebral body 3, prevents that the front end of release link 11 is screwed into vertebral body 3, to avoid iatrogenic spinal cord injury.Wherein, described depth stop structure 113 can be a positive stop lug boss, described positive stop lug boss be arranged near described in control end 111 position, the screw-in depth of controlling end 111 by direct restriction prevents that the front end of release link 11 is screwed into vertebral body 3.Preferred described positive stop lug boss is the described release link of the ring round ring boss of 11 1 weeks.Or, described depth stop structure 113 is arranged on the below of described screw thread control structure, screw thread travel by restriction screw thread control structure is screwed into vertebral body 3 to prevent the front end of release link 11, and described depth stop structure 113 can be a depth stop boss, a depth stop groove or a smooth pole face etc., and this is not limited.
Referring to Fig. 3, Fig. 3 is that nut structure schematic diagram is controlled in the reset of this utility model one embodiment.In the present embodiment, described in control end and 111 be preferably the spongy bone bolt structure that front end is sharp-pointed, front end is sharply convenient to be screwed into vertebral body 3, cancellous bone screw type screw thread is dark and sharp keen, can increase hold.Control end 111 length and be preferably 10-20mm, can select different size according to vertebral body 3 anteroposterior diameter sizes, be applicable to operation, to the not more restrictions of its size.Described mobile control end 112 can be screw thread control structure, preferred os integumentale screw type, and the reach of this screw thread control structure can be set as one section as required, or this release link 11 also can be Full threaded rod, and this is not limited.Described mobile control structure is preferably corresponding reset and controls nut, and outline is preferably hexagon or multi-edge column-shaped, and instrument easy to use is screwed in.Also can select other suitable screw thread screw closure structures, the screw thread that for example carries handle screws cover, and can be directly by operating grip, complete and control screwing in, and without in addition by instrument.Nut is controlled in described reset and described screw thread control structure is adaptive, and this reset is controlled nut and can in the screw thread control structure of mobile control end 112, be screwed in completely and screw out.The screw thread of controlling nut and described screw thread control structure by described reset screws to be controlled the movement vertically of described release link 11 and holds 111 movements vertically to control described in adjusting.
Referring to Fig. 4, Fig. 4 is dilator 2 structural representations of this utility model one embodiment.Described dilator 2 comprises: sleeve 21, correspondingly with described release link 11 arrange and be sleeved in described release link 11, be that each release link 11 correspondence arranges a sleeve 21, the mobile control end 112 of this release link 11 passes these sleeve 21 tops and is positioned at completely outside this sleeve 21; Lock device 22, comprise support 221, latch 222 and slide rail 223, on described support 221, be provided with the track 224 passing through for described slide rail 223, one end of described slide rail 223 is connected with a described sleeve 21, described in another, sleeve 21 is fixed on described support 221, and described latch 222 is fixed on described support 221 corresponding to described track 224.In the present embodiment, described latch 222 comprises fixed block 2221, locking reed 2222 and swing handle 2223, described fixed block 2221 is fixed on described support 221 corresponding to described track 224, described swing handle 2223 is arranged on described fixed block 2221, one end of described locking reed 2222 and described slide rail 223 butts, the other end of described locking reed 2222 is connected with described swing handle 2223.In addition, the lock device 22 of this dilator also can adopt screw thread locking structure, for example, adopt swivel nut replaceable holder 221 and latch 222, adopts screw rod to replace slide rail 223, by screw thread, is screwed and can be realized equally the horizontal level of adjusting between two sleeves 21.As long as therefore can realize the adjustment function of this horizontal level, concrete structure can be done multiple conversion, and this is not limited.
Referring to Fig. 5 A-5C, Fig. 5 A-Fig. 5 C is this utility model using state schematic diagram.During operation, with reference to image datas such as X-rays, select the release link 11 of appropriate length to be vertically screwed into vertebral body 3 to be resetted, the sleeve of dilator 2 21 is inserted in respectively to two release links 11, now sleeve 21 lower ends can contact with the depth stop structure 113 of release link 11, the depth stop structure 113 of another sleeve 21 lower ends and release link 11 has spacing L, the distance of i.e. 3 the front and back dislocations of this vertebral body to be resetted of this spacing L.Reset is controlled to nut to be screwed in to contacting with sleeve 21 upper ends.The swing handle 2223 of rotary opening device 2, longitudinally struts to articular process 4 releases the intervertebral of vertebral body 3 to be resetted.Now can carry out the operation techniques (referring to Fig. 5 A) such as intervertebral space decompression.During reset, the sleeve 21 that lower end contacts with depth stop structure 113 of take is fixed arm, take slide rail 223 as arm, the reset of another release link 11 is controlled to nut and progressively screw in, height by adjusting release link 11, until spacing L is 0, is realized vertebral body 3 along the correction of row.Can be with reference to x line perspective (referring to Fig. 5 B) in art in operation process.Then, unclamp lock device 22, reverse rotation swing handle 2223, reduce the distance of intervertebral pulling, until satisfied, reset, utilize this positor 1 and dilator 2 keep the para-position of 3 of vertebral bodys, to line relation, complete intervertebral fusion, fixing operation technique (referring to Fig. 5 C).
The utlity model has following advantage:
1, possess and between vertebral body, strut function;
2, there is the reset response of lifting, can correct intervertebral dislocation, bad along row;
3, can hold reset relation after resetting, do not affect follow-up intervertebral fusion, fixing operation, the loss problem of having avoided resetting in prior art;
4, reseting procedure is controlled, utilizes suspention between each parts to lift effect and progressively resets, accurately, safety;
5, the errorless risk that enters canalis spinalis of distraction reduction apparatus, has avoided iatrogenic spinal cord injury;
6, use simple, conveniently, be easy to clinically use and grasp.
Certainly; this utility model also can have other various embodiments; in the situation that not deviating from this utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to this utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of this utility model.
Claims (10)
1. a research of anterior cervical intervertebral distracting positor, is characterized in that, comprising:
For being connected with cervical vertebral body to be resetted, and drive described vertebral body to adjust reset to realize the positor along the correction of row to described vertebral body by the continuous moving of vertical direction;
By adjusting the horizontal direction position of described positor, make the intervertebral of described vertebral body longitudinally strut to articular process release to carry out intervertebral operation, or described vertebral body keeps the position of described positor to complete the dilator of intervertebral fusion or fixing operation after adjusting and resetting, and is connected with described positor.
2. research of anterior cervical intervertebral distracting positor as claimed in claim 1, is characterized in that, described positor comprises:
At least two release links, described release link comprises for being connected with described vertebral body and firmly controlling described vertebral body and hold and control end movement vertically to drive described vertebral body to adjust the mobile control end resetting described in controlling to complete the controlling of reset of described vertebral body;
The moving control mechanism of the reset by vertebral body described in described mobile control end regulating and controlling, is connected with described mobile control end.
3. research of anterior cervical intervertebral distracting positor as claimed in claim 2, is characterized in that, described in control end for for the sharp-pointed spongy bone bolt structure of the front end that is screwed into described vertebral body and described vertebral body is firmly controlled.
4. research of anterior cervical intervertebral distracting positor as claimed in claim 2 or claim 3, it is characterized in that, described mobile control end is screw thread control structure, described mobile control structure is controlled the movement vertically of described release link and is controlled nut to control the reset of end movement vertically described in adjusting for screwing by the screw thread with described screw thread control structure, and nut and described screw thread control structure adaptation are controlled in described reset.
5. research of anterior cervical intervertebral distracting positor as claimed in claim 2 or claim 3, is characterized in that, described release link also comprises for controlling the degree of depth that end enters described vertebral body described in controlling to avoid the depth stop structure of iatrogenic spinal cord injury.
6. research of anterior cervical intervertebral distracting positor as claimed in claim 5, is characterized in that, described depth stop structure is a positive stop lug boss, described positive stop lug boss be arranged near described in control the position of end.
7. research of anterior cervical intervertebral distracting positor as claimed in claim 6, is characterized in that, described positive stop lug boss is the described release link of the ring round ring boss of a week.
8. research of anterior cervical intervertebral distracting positor as claimed in claim 4, it is characterized in that, described release link also comprises for controlling the degree of depth that end enters described vertebral body described in controlling to avoid the depth stop structure of iatrogenic spinal cord injury, described depth stop structure is arranged on the below of described screw thread control structure, and described depth stop structure is a depth stop boss, a depth stop groove or a smooth pole face.
9. the research of anterior cervical intervertebral distracting positor as described in claim 2,3,6,7 or 8, is characterized in that, described dilator comprises:
Sleeve, correspondingly with described release link arranges and is sleeved in described release link;
Lock device, comprise support, latch and slide rail, be provided with the track passing through for described slide rail on described support, one end of described slide rail is connected with a described sleeve, described in another, sleeve is fixed on described support, and described latch is fixed on described support corresponding to described track.
10. research of anterior cervical intervertebral distracting positor as claimed in claim 9, it is characterized in that, described latch comprises fixed block, locking reed and swing handle, described fixed block is fixed on described support corresponding to described track, described swing handle is arranged on described fixed block, one end of described locking reed and described slide rail butt, the other end of described locking reed is connected with described swing handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318661.4U CN203915054U (en) | 2014-06-13 | 2014-06-13 | Research of anterior cervical intervertebral distracting positor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318661.4U CN203915054U (en) | 2014-06-13 | 2014-06-13 | Research of anterior cervical intervertebral distracting positor |
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| Publication Number | Publication Date |
|---|---|
| CN203915054U true CN203915054U (en) | 2014-11-05 |
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ID=51810949
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420318661.4U Expired - Fee Related CN203915054U (en) | 2014-06-13 | 2014-06-13 | Research of anterior cervical intervertebral distracting positor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104027164A (en) * | 2014-06-13 | 2014-09-10 | 北京大学第三医院 | Anterior cervical intervertebral distraction repositor |
| CN112401953A (en) * | 2020-10-20 | 2021-02-26 | 广东施泰宝医疗科技有限公司 | Temporary distraction fixing device for vertebroplasty |
-
2014
- 2014-06-13 CN CN201420318661.4U patent/CN203915054U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104027164A (en) * | 2014-06-13 | 2014-09-10 | 北京大学第三医院 | Anterior cervical intervertebral distraction repositor |
| CN112401953A (en) * | 2020-10-20 | 2021-02-26 | 广东施泰宝医疗科技有限公司 | Temporary distraction fixing device for vertebroplasty |
| CN112401953B (en) * | 2020-10-20 | 2022-08-05 | 广东施泰宝医疗科技有限公司 | Temporary distraction fixing device for vertebroplasty |
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| 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: 20141105 Termination date: 20210613 |
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| CF01 | Termination of patent right due to non-payment of annual fee |