CN207445023U - A kind of lumbar vertebrae coronary sinus retroperfusion connector - Google Patents
A kind of lumbar vertebrae coronary sinus retroperfusion connector Download PDFInfo
- Publication number
- CN207445023U CN207445023U CN201720403511.7U CN201720403511U CN207445023U CN 207445023 U CN207445023 U CN 207445023U CN 201720403511 U CN201720403511 U CN 201720403511U CN 207445023 U CN207445023 U CN 207445023U
- Authority
- CN
- China
- Prior art keywords
- coronary sinus
- lumbar vertebrae
- fixing end
- sinus retroperfusion
- screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 210000003748 coronary sinus Anatomy 0.000 title claims abstract description 89
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005452 bending Methods 0.000 abstract description 4
- 238000001356 surgical procedure Methods 0.000 abstract description 3
- 230000002146 bilateral effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 241000135309 Processus Species 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 206010058314 Dysplasia Diseases 0.000 description 1
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 201000006490 Spondylolysis Diseases 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003412 degenerative effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The utility model is related to a kind of lumbar vertebrae coronary sinus retroperfusion connectors, are equipped with hold-down bars fixing end, screw fixing end and pitman connecting the two；The hold-down bars fixing end is equipped with hold-down bars fixing end body, and the hold-down bars fixing end body is equipped with plug screw mounting hole and equipped with fixing groove, and the head end of the plug screw mounting hole is connected with fixing groove；The screw fixing end is equipped with screw fixing end body, and the screw fixing end body is equipped with ball-and-socket, and the opening ball-type ring with the matched C-shaped of ball-and-socket is equipped in ball-and-socket, and the inner wall of the opening ball-type ring is equipped with taper thread.The lumbar vertebrae coronary sinus retroperfusion connector of the utility model can establish association between coronary sinus retroperfusion and pedicle screw-rod, fixed intensity in increase, obtain it is preferably anti-bend and stretch, lateral bending and torsion effect, coronary sinus retroperfusion of being more convenient for is implanted by correct screw way, surgical procedure is more convenient, and possess the advantages of minimally invasive, damage is small, expense is low, meet minimally invasive trend and health economics principle.
Description
Technical field
The utility model is related to the field of medical instrument technology, specifically, are related to a kind of lumbar vertebrae coronary sinus retroperfusion connector.
Background technology
The internal fixation method of pedicle nail joint stud has been widely used for backbone degenerative disorders, spine fracture etc. one
The sick and wounded treatment of series is being rebuild spinal stability, is being promoted in bone grafting fusion and recovery backbone sequence, achieving good effect
Fruit.It is that bilateral pedicle screw-rod is fixed under normal circumstances, the stud that connector can be used to connect bilateral intermediate if necessary, further
Increase intensity (Fig. 1).Unilateral pedicle screw-rod fixation also has situation about using, but its intensity is to be weakened certainly, not as
It is conventional to use.
Coronary sinus retroperfusion is for fixing the screw of adjacent segment Minor articulus in spinal operation, is mostly other amalgamation modes
Auxiliary is fixed, and intensity is weaker than nail pedicle fix, is not used alone generally, and Minor articulus saboteur can not also use.Operation
In the process, coronary sinus retroperfusion generally enters from the vertebral plate of offside, dashes forward through lower articular, adjacent lower articular is dashed forward and is fixed on
Together.Usually bilateral is fixed, intermediate occasionally to have using connector.Available for backbone open surgery, but more often see vertebral column minimally invasive
Operation.
Conventional installation methods need to insert vertebra section bilateral pedicle nail up and down, cooperation stud locking connection at present.The connection side
Method needs vertebra section bilateral to insert pedicle nail, but for unilateral disc herniation, unilateral Spondylolysis and other need
The patient of unilateral side decompression, the strong side structure of exposure are placed into pedicle nail, are bound to cause a wide range of stripping of strong pleural muscle meat, increase wound
Wound and amount of bleeding, delayed recovery time；Meanwhile it is also one additional to patient and social medical expenses to insert pedicle nail more
Burden.It is such as followed closely using percutaneous cervical arc root and complicated for operation, time-consuming and expensive.In addition for offside pedicle of vertebral arch dysplasia, no
The special case for inserting pedicle nail and first nail of putting is suitble to fail, screw way destroys the trouble that can not seriously insert pedicle nail again
Person, conventional method then cannot be solved effectively.Certainly unilateral side nail pedicle fix also has use, but its intensity is to be subtracted certainly
It is weak, not as conventional use.
Then there is coronary sinus retroperfusion to be used in combination with unilateral pedicle screw-rod, inserted using with unilateral pedicle screw-rod homonymy
Coronary sinus retroperfusion, the upper vertebra section inferior articular process of fixed offside and the next centrum processus articular superior (Fig. 2).It can be good in solution
Drawback is stated, both reduces wound, avoids the exposure of bilateral muscle, and increased than unilateral pedicle nail intensity, also reduces expense
With.But it is not associated between current coronary sinus retroperfusion and pedicle screw-rod, intensity still dislikes deficiency.
Yet there are no to connect coronary sinus retroperfusion and pedicle screw-rod, possess excellent in strength, convenient for surgical procedure and
Device of simple structure and low cost.
The content of the invention
The purpose of this utility model is for deficiency of the prior art, provides a kind of coronary sinus retroperfusion and pedicle screw-rod
Connector and the better device system of interior fixed effect.
On the one hand, the utility model provides a kind of lumbar vertebrae coronary sinus retroperfusion connector, equipped with hold-down bars fixing end, screw
Fixing end and pitman connecting the two；The hold-down bars fixing end is equipped with hold-down bars fixing end body, the hold-down bars
Fixing end body is equipped with plug screw mounting hole and equipped with fixing groove, and the head end of the plug screw mounting hole is connected with fixing groove；
The screw fixing end is equipped with screw fixing end body, and the screw fixing end body is equipped with ball-and-socket, is equipped in ball-and-socket
With the opening ball-type ring of the matched C-shaped of ball-and-socket, the inner wall of the opening ball-type ring is equipped with taper thread.
Preferably, the side wall of the fixing groove is equipped with notch.
Preferably, under use state, the opening direction of the notch is towards human body veutro.
Preferably, the axis where the fixing groove is perpendicular to the axis where plug screw mounting hole.
Preferably, the plug screw mounting hole is arranged on the side wall of hold-down bars fixing end body.
Preferably, the plug screw mounting hole penetrates through on direction of the hold-down bars fixing end body back side to veutro.
Preferably, the ball-and-socket penetrates through on the direction of screw fixing end top surface to bottom surface.
Preferably, the lumbar vertebrae coronary sinus retroperfusion connector is equipped with the plug screw to match with plug screw mounting hole.
On the other hand, the utility model provides a kind of lumbar vertebrae coronary sinus retroperfusion internal fixation device system, comprising through joint
Screw and as above any lumbar vertebrae coronary sinus retroperfusion connector.
Preferably, also comprising pedicle screw-rod.
The utility model advantage is：
1st, the utility model lumbar vertebrae coronary sinus retroperfusion connector one end provide be locked, the other end by ball-and-socket, open
Mouth ball-type ring carries out universal lock, the hold-down bars of pedicle screw-rod and coronary sinus retroperfusion is locked to connector, so as to improve
Whole fixed effect, add the interior fixed Combination it is effectively anti-bend and stretch, the effect of lateral bending and torsion, excellent fixation can be obtained
Intensity, long-term effect are good；
2nd, the lumbar vertebrae coronary sinus retroperfusion connector of the utility model makes the direction of coronary sinus retroperfusion that can adjust according to actual needs
Section, can ensure that coronary sinus retroperfusion is implanted by correct screw way for Different Individual；
3rd, the lumbar vertebrae coronary sinus retroperfusion connector of the utility model also has certain guiding role, easy to operation through joint spiral shell
Nail, makes it be implanted by correct screw way, shortens operating time；
4th, the notch design is convenient for being locked between lumbar vertebrae coronary sinus retroperfusion connector and hold-down bars in art, hand
Art is easy to operate, can shorten operating time；
5th, the lumbar vertebrae coronary sinus retroperfusion connector of the utility model makes internal fixation of spine operation minimally invasive can complete, patient's group
It knits that damage is small, and bleeding is few, recovers fast；
6th, the lumbar vertebrae coronary sinus retroperfusion connector of the utility model can reduce the cost of implantation material, mitigate patient and society
Financial burden.
Description of the drawings
Fig. 1 is the fixed model photo of pedicle screw-rod in the prior art.
Fig. 2 is the fixed model photo that unilateral pedicle screw-rod is used in combination with coronary sinus retroperfusion in the prior art.
Fig. 3 is a kind of structure diagram of lumbar vertebrae coronary sinus retroperfusion connector of the utility model.
Fig. 4 is the A-A sectional views of Fig. 3.
Fig. 5 is the B-B sectional views of Fig. 3.
Fig. 6 is the structure diagram of another lumbar vertebrae coronary sinus retroperfusion connector of the utility model.
Fig. 7 is a kind of lumbar vertebrae coronary sinus retroperfusion internal fixation device system structure diagram of the utility model.
Fig. 8 is the A-A sectional views of Fig. 7.
Fig. 9 is another lumbar vertebrae coronary sinus retroperfusion internal fixation device system structure diagram of the utility model.
Specific embodiment
It elaborates below in conjunction with the accompanying drawings to specific embodiment provided by the invention.
Reference numeral and component involved in attached drawing is as follows：
1. hold-down bars fixing end, 11. hold-down bars fixing end bodies, 12. plug screw mounting holes, 13. fixing grooves, 131. notches
2. screw fixing end, 21. screw fixing end bodies, 22. ball-and-sockets, 23. opening ball-type rings
3. pitman
4. plug screw
100. lumbar vertebrae coronary sinus retroperfusion connector
200. lumbar vertebrae coronary sinus retroperfusion connectors, 2001. coronary sinus retroperfusions nail tail, 2002. coronary sinus retroperfusion ailheads
300. pedicle screw-rods, 3001. pedicle nails, 3002. hold-down bars
Embodiment 1
Fig. 3 is referred to, Fig. 3 is a kind of structure diagram of lumbar vertebrae coronary sinus retroperfusion connector of the utility model.It is described
Lumbar vertebrae coronary sinus retroperfusion connector be equipped with hold-down bars fixing end 1, screw fixing end 2 and pitman 3, the pitman 3 one
End connection hold-down bars fixing end 1, other end attachment screw fixing end 2.The hold-down bars fixing end 1 is equipped with hold-down bars fixing end
Body 11, the side wall of the hold-down bars fixing end body 11 are equipped with plug screw mounting hole 12, and the plug screw mounting hole 12 exists
It is penetrated through on hold-down bars fixing end body back side to the direction of veutro.
Fig. 4 is referred to, Fig. 4 is the A-A sectional views of Fig. 3.The hold-down bars fixing end body 11 is equipped with fixing groove 13, Gu
Determine slot 13 to penetrate through on the direction of hold-down bars fixing end body top surface to bottom surface.Axis where the fixing groove 13 perpendicular to
Axis where plug screw mounting hole 12.Head end (the i.e. plug screw head after installation plug screw of the side wall of fixing groove 13 and plug screw mounting hole 12
Place end) it is connected.Under use state, the hold-down bars axis of axis and pedicle screw-rod where the fixing groove 13 is put down
Row, the axis where the plug screw mounting hole 12 adjust in the plane vertical with the hold-down bars axis of pedicle screw-rod.Gu
Determine to be additionally provided with notch 131 on the side wall of slot 13, under use state, 131 opening direction of notch is towards human body veutro.
Fig. 4 combinations Fig. 5, Fig. 5 are the B-B sectional views of Fig. 3.The screw fixing end 2 is equipped with screw fixing end body 21,
The screw fixing end body 21 is equipped with ball-and-socket 22, and the ball-and-socket 22 is on the direction of screw fixing end top surface to bottom surface
Perforation.The opening ball-type ring 23 of C-shaped is equipped in ball-and-socket 22,23 outer wall of opening ball-type ring fits in the inner wall of ball-and-socket 22,
The inner wall of opening ball-type ring 23 is equipped with taper thread.
It should be noted that in the present embodiment, " top surface ", " bottom surface ", " side wall " are under the visual angle of attached drawing 1
Name.Lumbar vertebrae coronary sinus retroperfusion connector one end of the utility model provides and is locked, and the other end passes through ball-and-socket 22, opening
Ball-type ring 23 carries out universal lock, the hold-down bars of pedicle screw-rod and coronary sinus retroperfusion is locked to connector, so as to improve
Whole fixed effect, enhance it is effectively anti-bend and stretch, the effect of lateral bending and torsion.The lumbar vertebrae coronary sinus retroperfusion connector of the utility model
Also certain guiding role, coronary sinus retroperfusion easy to operation.The effect of the hold-down bars fixing end 1 is the stick that is locked；
For accommodating hold-down bars, the notch 131 can insert convenient for hold-down bars in fixing groove 13 fixing groove 13, however, this
Field technology personnel know that it is also feasible to save notch 131；The plug screw mounting hole 12 is used to coordinate plug screw by hold-down bars
It is locked in fixing groove 13；Locking mode in the present embodiment is convenient for inserting plug screw and tightening plug screw in art, and locking is firm.Institute
The effect for the screw fixing end 2 stated is locked out coronary sinus retroperfusion；Coronary sinus retroperfusion is during being screwed into, the opening ball-type ring
23 outwards expansions, compress ball-and-socket 22, and so as to outside further expanse, most coronary sinus retroperfusion is locked to ball-and-socket 22 at last；
The ball-and-socket 22 and matching opening ball-type ring 23 cause the adjustable angle of coronary sinus retroperfusion, convenient for patient according to patient
Actual conditions are adjusted, and are ensured that coronary sinus retroperfusion is fixed on the most appropriate position of upper and lower two vertebras section, are obtained best consolidate
Determine effect；In practical application, the orientation of pitman 3 and angle can be designed according to Different Individual anatomic differences, i.e. hold-down bars is consolidated
Fixed end 1 and the relative tertiary location of screw fixing end 2, it is preferable that the lumbar vertebrae coronary sinus retroperfusion connector of the utility model can make
Coronary sinus retroperfusion has 15-60 ° of full swing scope compared with human body head end, has 15-70 ° most to put on compared with human body tail end
Dynamic scope；The screw fixing end 2 is preferably length 6-10mm, and width 6-10mm, thickness 2-5mm so possess smaller
Volume, it is ensured that coronary sinus retroperfusion can be implanted by correct screw way in the full swing angle of opening ball collar 23.
Embodiment 2
Fig. 6 is referred to, Fig. 6 is the structure diagram of another lumbar vertebrae coronary sinus retroperfusion connector of the utility model.Institute
The lumbar vertebrae coronary sinus retroperfusion connector stated is additionally provided with plug screw 4 on its basis with embodiment 1.The lumbar vertebrae of the present embodiment is through joint
Screw connector is equipped with plug screw, Clinical practice of being more convenient for.The plug screw 4 matches with plug screw mounting hole 12.The tail of plug screw 4
End can be designed to outer-hexagonal or interior hexagonal, convenient for matching with spanner, conveniently insert and tighten.
Embodiment 3
Fig. 7 is referred to, Fig. 7 is a kind of lumbar vertebrae coronary sinus retroperfusion internal fixation device system structure signal of the utility model
Figure.The lumbar vertebrae coronary sinus retroperfusion internal fixation device system includes lumbar vertebrae coronary sinus retroperfusion connector 100 and coronary sinus retroperfusion
200.The lumbar vertebrae coronary sinus retroperfusion connector 100 is as described in embodiment 1 or 2.The coronary sinus retroperfusion 200 is socketed on waist
In the opening ball-type ring of vertebra coronary sinus retroperfusion connector 100.Fig. 8 is referred to again, and Fig. 8 is the A-A sectional views of Fig. 6.The warp
Joint screw 200 is equipped with coronary sinus retroperfusion nail tail 2001 and coronary sinus retroperfusion ailhead 2002, coronary sinus retroperfusion nail tail
2001 are equipped with taper thread, match with the taper thread of opening ball-type ring 23, make the two that can lock.
Embodiment 4
Fig. 9 is referred to, Fig. 9 is another lumbar vertebrae coronary sinus retroperfusion internal fixation device system structure signal of the utility model
Figure.The lumbar vertebrae coronary sinus retroperfusion internal fixation device system includes lumbar vertebrae coronary sinus retroperfusion connector 100, coronary sinus retroperfusion
200 and pedicle screw-rod 300.The lumbar vertebrae coronary sinus retroperfusion connector 100 is as described in embodiment 1 or 2.It is described through joint
Screw 200 is as described in example 3 above.The pedicle screw-rod 300 is equipped with two pedicle nails 3001 and a hold-down bars
3002.Under use state, the hold-down bars 3002 is socketed in the fixing groove of lumbar vertebrae coronary sinus retroperfusion connector 100, fixed
The both ends of stick 3002 are connected respectively with two pedicle nails 3001.
Internal fixation of spine hand is carried out using the lumbar vertebrae coronary sinus retroperfusion connector or internal fixation device system of the utility model
Art installs lower vertebra section unilateral side pedicle nail, cooperation hold-down bars locking connection, then through notch 131 first, in accordance with conventional method
The fixing groove 13 of lumbar vertebrae coronary sinus retroperfusion connector 100 is buckled in the outside of hold-down bars 3002, plug screw 4 is inserted into plug screw and is fixed
12 internal lock of hole fastens, and then by coronary sinus retroperfusion 200 using ailhead as in apex insertion opening ball-type ring 23, and adjusts opening ball
Type ring 23 to coronary sinus retroperfusion 200 possesses proper angle, and ShiShimonoseki of vertebral plate and upper vertebra section can be passed through with coronary sinus retroperfusion 200
Section is prominent, and the processus articular superior of the next vertebra section is entered by capsular ligament, subject to upper and lower two vertebras section is effectively fixed, is screwed into still further below
Coronary sinus retroperfusion 200 is locked to complete.It can be in coronary sinus retroperfusion 200 and pedicle screw-rod using the instrument of the utility model
Association is established between 300, fixed intensity in increase, enhancing is anti-to bend and stretch, lateral bending and torsion capacity, and coronary sinus retroperfusion 200 exists
It is more convenient for being implanted by correct screw way under guiding role, improves surgical effect.Using the internal fixation of spine hand of the interior fixed Combination
Art is also equipped with the advantages of minimally invasive, damage is small, expense is low, meets minimally invasive trend and health economics principle.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, on the premise of the method for the present invention is not departed from, can also make several improvement and supplement, these are improved and supplement also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of lumbar vertebrae coronary sinus retroperfusion connector, which is characterized in that equipped with hold-down bars fixing end, screw fixing end and connection two
The pitman of person；The hold-down bars fixing end is equipped with hold-down bars fixing end body, is set on the hold-down bars fixing end body
There is plug screw mounting hole and equipped with fixing groove, the head end of the plug screw mounting hole is connected with fixing groove；The screw is fixed
End is equipped with screw fixing end body, and the screw fixing end body is equipped with ball-and-socket, is equipped with and the matched C-shaped of ball-and-socket in ball-and-socket
Opening ball-type ring, the inner wall of described opening ball-type ring is equipped with taper thread.
2. lumbar vertebrae coronary sinus retroperfusion connector according to claim 1, which is characterized in that on the side wall of the fixing groove
Equipped with notch.
3. lumbar vertebrae coronary sinus retroperfusion connector according to claim 2, which is characterized in that under use state, the slot
Mouthful opening direction towards human body veutro.
4. lumbar vertebrae coronary sinus retroperfusion connector according to claim 1, which is characterized in that the axis where the fixing groove
Line is perpendicular to the axis where plug screw mounting hole.
5. lumbar vertebrae coronary sinus retroperfusion connector according to claim 1, which is characterized in that the plug screw mounting hole is arranged on
On the side wall of hold-down bars fixing end body.
6. lumbar vertebrae coronary sinus retroperfusion connector according to claim 5, which is characterized in that the plug screw mounting hole is solid
Determine stick fixing end body back side to penetrate through to the direction of veutro.
7. lumbar vertebrae coronary sinus retroperfusion connector according to claim 1, which is characterized in that the ball-and-socket is fixed in screw
End penetrates through on top surface to the direction of bottom surface.
8. lumbar vertebrae coronary sinus retroperfusion connector according to claim 1, which is characterized in that the lumbar vertebrae coronary sinus retroperfusion
Connector is equipped with the plug screw to match with plug screw mounting hole.
9. a kind of lumbar vertebrae coronary sinus retroperfusion internal fixation device system, which is characterized in that include coronary sinus retroperfusion and claim 1-8
Any lumbar vertebrae coronary sinus retroperfusion connector.
10. lumbar vertebrae coronary sinus retroperfusion internal fixation device system according to claim 9, which is characterized in that also comprising vertebral arch
Root follows closely stick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403511.7U CN207445023U (en) | 2017-04-18 | 2017-04-18 | A kind of lumbar vertebrae coronary sinus retroperfusion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403511.7U CN207445023U (en) | 2017-04-18 | 2017-04-18 | A kind of lumbar vertebrae coronary sinus retroperfusion connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207445023U true CN207445023U (en) | 2018-06-05 |
Family
ID=62245918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720403511.7U Expired - Fee Related CN207445023U (en) | 2017-04-18 | 2017-04-18 | A kind of lumbar vertebrae coronary sinus retroperfusion connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207445023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108720912A (en) * | 2017-04-18 | 2018-11-02 | 中国人民解放军第二军医大学第二附属医院 | A kind of backbone coronary sinus retroperfusion connector |
| CN109009380A (en) * | 2018-06-26 | 2018-12-18 | 黄振强 | A kind of fixed device of Via Posterior Spinal Approach multiple spot |
-
2017
- 2017-04-18 CN CN201720403511.7U patent/CN207445023U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108720912A (en) * | 2017-04-18 | 2018-11-02 | 中国人民解放军第二军医大学第二附属医院 | A kind of backbone coronary sinus retroperfusion connector |
| CN108720912B (en) * | 2017-04-18 | 2020-05-12 | 中国人民解放军第二军医大学第二附属医院 | Spinal column joint screw connector |
| CN109009380A (en) * | 2018-06-26 | 2018-12-18 | 黄振强 | A kind of fixed device of Via Posterior Spinal Approach multiple spot |
| CN109009380B (en) * | 2018-06-26 | 2021-03-02 | 黄振强 | Spine posterior multi-point fixing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180605 |