CN105326587B - Opening type interbody fusion cage - Google Patents
Opening type interbody fusion cage Download PDFInfo
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- CN105326587B CN105326587B CN201510903300.5A CN201510903300A CN105326587B CN 105326587 B CN105326587 B CN 105326587B CN 201510903300 A CN201510903300 A CN 201510903300A CN 105326587 B CN105326587 B CN 105326587B
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Abstract
The invention provides an opening type interbody fusion cage. The opening type interbody fusion cage comprises a fusion cage body, a push block, a jackscrew and two end covers. The fusion cage body is in a rectangular frame shape, the push block is installed in the fusion cage body, the two end covers are arranged at the top and the bottom of the fusion cage body respectively, a rectangular boss is arranged on one end face of the fusion cage body, the other end of the fusion cage body is in a transitional sharp corner shape, the jackscrew is arranged in the middle of the rectangular boss and connected with the rectangular boss through threads, and wedge-shaped protrusions are arranged at the two ends and the middle poison of the push block respectively. In a working state, the ends, close to the jackscrew, of the wedge-shaped protrusions are platforms, and a first round hole matched with the jackscrew in installation is formed in the platform of the wedge-shaped protrusion, close to the jackscrew, of the push block. Tooth-shaped protrusions are evenly distributed on the upper surfaces of the end covers, and wedge-shaped grooves matched with the wedge-shaped protrusions are formed in the two ends and the middle of the bottoms of the end covers. The jackscrew is rotated to drive the push block to move to one end, and the wedge-shaped protrusions are made to slide along the slopes of the wedge-shaped grooves to open the end covers in parallel. A lateral approach implantation method can be adopted, surgery is simple, damage to the spine is very small, and higher stability is achieved.
Description
Technical field
The present invention relates to one kind struts type Invasive lumbar fusion device, belong to medical instruments field, it is adaptable to which side lumbar intervertebral melts
Close operation.
Background technology
Waist interbody fusion is one of method for the treatment of spinal disease, and annual increasing crowd receives interbody fusion
Treatment.Interbody fusion includes autologous bone transplanting fusion and allogenic bone transplantation fusion, due to autologous bone limited source, increases and supplies
Area's wound, the shortcomings of timely mechanically stable can not be provided so that the clinical practice of interbody fusion is restricted, and allograph bone
The viral transmission and immunological rejection transplanted not only costly, limited amount but also caused by allograph bone is also to affect it clinical wide
The main cause of general application.In recent years, it is to improve bone collection fusion rate, reduces outer fixed dependence, improves and keep backbone
Curvature, the type Invasive lumbar fusion device of strutting arises at the historic moment, but the existing type Invasive lumbar fusion device that struts is needed together mostly in clinical practice
When be implanted into two pieces of fusion devices, thus bilateral facet joint must be cut off and dashed forward, it is serious to the destruction of lumbar vertebrae rear structure, affect Post lumbar surgery
Stability, and be often implanted into using strutting mode, implantation is difficult, less with the contact area of upper and lower backbone, in ridge after implantation
Intercolumniation easily loosens, and built on the sand, affects implantation effect, takes out also more difficult, easily causes wound to patient.
The content of the invention
It is an object of the invention to provide it is not easy abjection, little to spinal injury after a kind of conveniently implantation, implantation, and
And need to only be implanted into the side approach strutting type Invasive lumbar fusion device of Single cage.
To achieve these goals, the technical solution used in the present invention is：
One kind struts type Invasive lumbar fusion device, including fusion body, pushing block, jackscrew and end cap；The fusion body is rectangle
Frame-shaped, the pushing block is arranged on portion in the fusion device body, and the end cap is two, is separately positioned on the top of the fusion body
Portion position and bottom position, the fusion body end face is provided with rectangular boss, and the other end is transited into tip-angled shape, the rectangle
The first screwed hole is provided with the middle of boss, described jackscrew one end is threaded portion, and the periphery of the threaded portion is provided with and described first
The jackscrew screw thread that corresponding threaded holes are closed, first screwed hole and the jackscrew are threaded connection, and the pushing block two ends are with
Between position be respectively arranged with wedge-shaped protrusion, under working condition, the wedge-shaped protrusion near one end of jackscrew be platform, the pushing block
It is provided near the platform of the wedge-shaped protrusion of jackscrew and coordinates the first circular hole installed, the end cap to be evenly distributed in the upper surface with the jackscrew
The two ends and centre position for having detent projection, the end cap bottom are provided with the wedge-shaped slot being engaged with the wedge-shaped protrusion, work
When making, jackscrew is rotated, drive pushing block to move to one end, make the wedge-shaped protrusion slide along the inclined-plane of the wedge-shaped slot, will be described
End cap parallel opening.
Preferably, the upper and lower of the first circular hole of the pushing block is respectively arranged with the pin hole through the pushing block,
The pin hole is vertical with first circular hole, and in the pin hole pin is separately installed with.
Preferably, the end cap middle part is provided with the first rectangular opening and the second rectangular opening, the pushing block and the end cap
First rectangular opening and the second rectangular opening correspondence position are respectively arranged with the 3rd rectangular opening and the 4th rectangular opening, arrange on the end cap
Six positioning pinholes, in the location hole pilot pin is provided with.
Preferably, fusion body tip-angled shape one end middle position is provided with the second circular hole and the 3rd circular hole, the fusion
At its center position is respectively symmetrically and is provided with long round recessed on two sides of body, and the centre position of the oval bottom portion of groove is arranged
There is long round tube hole.
Preferably, the wedge-shaped protrusion two sides of the pushing block middle part are respectively symmetrically and are provided with drops boss, the water
Drop-wise boss middle position is respectively symmetrically and is provided with the second screwed hole and the 3rd screwed hole, the interposition of the pushing block top and bottom
Put and be provided with dovetail groove, on the inclined-plane of the wedge-shaped slot of the end cap middle part dovetail shaped being engaged with the dovetail groove is provided with
It is raised.
Preferably, under working condition, the pushing block sets respectively in position corresponding with second circular hole and the 3rd circular hole
Be equipped with the 4th screwed hole and the 5th screwed hole, the axis of the 4th screwed hole and second circular hole on the same line, institute
The axis of the 5th screwed hole and the 3rd circular hole is stated on the same line, in the 4th screwed hole and the 5th screwed hole
A screw axis are inside separately installed with, are provided with the screw axis and are closed with the 4th screwed hole and the 5th corresponding threaded holes
Screw thread, the screw axis top is provided with the first cross recess.
Preferably, a sliding nail is separately installed with second screwed hole and in the 3rd screwed hole, the sliding nail includes
Ailhead, rivet nut and nail tail, ailhead top is provided with the second cross recess, and the rivet nut is provided with and second screwed hole and the
Three corresponding threaded holes close screw thread, and the nail tail is cylinder of the diameter less than the rivet nut.
Preferably, under working condition, away from one end of jackscrew, in its surface meta is installed and is equipped with two for the end cap bottom
Individual semicylinder groove, the semicylinder groove extends to the wedge-shaped slot, the semicircle along the length direction of the end cap
Column recesses are engaged with the screw axis, and the bottom centre position of two sides of the end cap is respectively equipped with a groove, institute
It is arc that groove longitudinal section shape is stated near one end of jackscrew, and the other end is wedge shape, the groove and the drops boss
It is engaged.
Preferably, to be respectively equipped with a rectangle near the end of the rectangular boss recessed for two sides of the fusion body
Groove, the centre position of the rectangular recess bottom is provided with rectangular through-hole.
Preferably, the centre for stating the threaded portion of jackscrew is provided with hexagon ring, and the other end is provided with card-tight part, the card-tight part
It is connecting portion and the threaded portion between, the external diameter of the connecting portion is less than the threaded portion and the external diameter of the card-tight part.
It is an advantage of the invention that：
The present invention's struts type Invasive lumbar fusion device using side approach method for implantation, and operation is simple, an implantable fusion device
Pyramidal support can be just completed, the wound very little to backbone, rotation jackscrew can drive pushing block to move to one end, make the wedge shape convex
Rise and slided along the inclined-plane, by the end cap parallel opening, strut the type Invasive lumbar fusion device backbone contact area upper and lower with it greatly,
Strut that mode is more stable compared with other, the type Invasive lumbar fusion device of strutting will not be moved.
Further, when assembling is improper to be needed to reassembly, or when needing taking-up to strut type Invasive lumbar fusion device, only need
Jackscrew is reversely rotated, because pin is stuck on the connecting portion of jackscrew, the position meeting that jackscrew bottom card-tight part opposing connections are projected
One outside pulling force is applied to pin, drives pushing block to return to initial bit, fusion device from softened state to original state, it is convenient from
Take out in centrum.
Further, guide-localization is played a part of in pin, sliding nail and movement of the screw axis to pushing block, when moving pushing block
Move along the direction parallel with end cap, also will not deflect to both sides, the abjection of anti-thrust block, make to strut type Invasive lumbar fusion device more
Smoothly and keeping parallelism struts upper and lower backbone, it is implanted into；Pilot pin is arranged in end cap, and the type Invasive lumbar fusion device of strutting is
Polyetheretherketonematerials materials, this kind of material can not develop in operation, it is impossible to confirm the position of implantation, and pilot pin can be in operation
Development positioning, can assist in the position of fusion device implantation, be easy to the carrying out performed the operation.
Description of the drawings
Below in conjunction with the accompanying drawings to the present invention in the type Invasive lumbar fusion device that struts be described further：
Fig. 1 is the overall structure diagram that the present invention struts type Invasive lumbar fusion device；
Fig. 2 is the front view that the present invention struts type Invasive lumbar fusion device；
Fig. 3 is the top view for strutting type Invasive lumbar fusion device of the present invention；
Fig. 4 is the structural representation of screw axis of the present invention；
Fig. 5 is the structural representation of present invention fusion body；
Fig. 6 is the front view of present invention fusion body；
Fig. 7 is the structural representation of the sliding nail of the present invention；
Fig. 8 is the structural representation of pushing block of the present invention；
Fig. 9 is the front view of pushing block of the present invention；
Figure 10 is the structural representation of jackscrew of the present invention；
Figure 11 is the structural representation of end cap of the present invention；
Figure 12 is the front view of end cap of the present invention；
Figure 13 is the top view of end cap of the present invention；
Figure 14 is the upward view of end cap of the present invention；
In figure：1- screw axis, 2- fusion body, 3- slide nail, 4- pushing blocks, 5- pins, 6- jackscrews, 7- pilot pins, 8- end caps,
The cross recesses of 9- first, the rectangular openings of 10- the 4th, the screwed holes of 11- the 3rd, the circular holes of 121- second, the circular holes of 122- the 3rd, 131- are oval recessed
The long round tube hole of groove, 132-, 14- rectangular recess, 15- rectangular through-holes, 16- rectangular boss, the screwed holes of 17- first, the crosses of 18- second
Groove, 19- rivet nuts, 20- nail tails, the rectangular openings of 21- the 3rd, the circular holes of 22- first, 23- pin holes, 24- drops boss, 25- second
Screwed hole, 26- dovetail grooves, the screwed holes of 271- the 4th, the screwed holes of 272- the 5th, 28- card-tight parts, 29- hexagon rings, 30- dentations are convex
Rise, the rectangular openings of 311- first, the rectangular openings of 312- second, 32- semicylinder grooves, 33- wedge-shaped slots, 34- grooves, 35- pilot pins
Hole, 36- wedge-shaped protrusions, 37- threaded portions, 38- connecting portions.
Specific embodiment
In order to further illustrate the present invention, below in conjunction with the accompanying drawings and embodiment to the present invention provide strut type intervertebral fusion
Device is described in detail, but they can not be interpreted as into limiting the scope of the present invention.
The invention provides one kind struts type Invasive lumbar fusion device, as shown in Fig. 1,2,3,5,6,8,10,11, including fusion device
Body 2, pushing block 4, jackscrew 6 and end cap 8；Fusion body 2 is rectangular box-like, and pushing block 4 is arranged on inside fusion body 2, and end cap 8 is two
It is individual, the tip position and bottom position of fusion body 2 are separately positioned on, the fusion end face of body 2 is provided with rectangular boss 16, separately
One end is transited into tip-angled shape, is provided with the first screwed hole 17 in the middle of rectangular boss 16, and the one end of jackscrew 6 is threaded portion 37, threaded portion 37
Periphery be provided with the jackscrew screw thread being engaged with the first screwed hole 17, the first screwed hole 17 and jackscrew 6 are threaded connection, push away
The two ends of block 4 and centre position are respectively arranged with wedge-shaped protrusion 36, and under working condition, wedge-shaped protrusion 36 is near one end of jackscrew 6
Platform, pushing block 4 is provided near the platform of the wedge-shaped protrusion 36 of jackscrew 6 and coordinates the first circular hole 22 installed, end cap 8 with jackscrew 6
Detent projection 30 is evenly distributed in the upper surface, end cap 8 and the up and down frictional force between backbone can have been increased, made to strut type Invasive lumbar fusion device
The backbone of its upper and lower of support more firm after implantation, the two ends and centre position of the bottom of end cap 8 are provided with and wedge shape
Raised 36 wedge-shaped slots 33 being engaged, during work, rotate jackscrew 6, drive pushing block 4 to move to one end, make wedge-shaped protrusion 36 along wedge
The inclined-plane of shape groove 33 slides, by the parallel opening of end cap 8.
As shown in Figure 8,9, the upper and lower of the first circular hole 22 of pushing block 4 is respectively arranged with the pin hole through pushing block 4
23, pin hole 23 is vertical with the first circular hole 22, and in pin hole 23 pin 5 is separately installed with.
As shown in Figure 11,12,13,14, the middle part of end cap 8 is provided with the first rectangular opening 311 and the second rectangular opening 312, pushes away
First rectangular opening 311 of block 4 and end cap 8 and the correspondence position of the second rectangular opening 312 are respectively arranged with the 3rd rectangular opening 21 and the
Four rectangular openings 10, the 3rd rectangular opening 21 and the 4th rectangle of the first rectangular opening 311, the second rectangular opening 312 and corresponding setting
Sclerotin can be filled inside hole 10, the backbone for strutting type Invasive lumbar fusion device top and the bottom is preferably merged, be conducive to that patient's is extensive
It is multiple；Arrange in six positioning pinholes 35, location hole 35 on end cap 8 and pilot pin 7 is installed, pilot pin 7 is arranged in end cap 8, this
The type Invasive lumbar fusion device that struts in embodiment is made using polyetheretherketonematerials materials, and polyetheretherketonematerials materials can not develop in operation,
The position of its implantation cannot be confirmed, and the material of pilot pin 7 is tantalum wire in the present embodiment, can be strutted with Instrument observation in operation
The position of type Invasive lumbar fusion device implantation, can position in development in operation, be easy to the carrying out performed the operation.
As shown in Figure 5,6, merge the tip-angled shape one end middle position of body 2 and be provided with the second circular hole 121 and the 3rd circular hole 122,
At its center position is respectively symmetrically and is provided with long round recessed 131 on 2 two sides of fusion body, the centre position of oval bottom portion of groove
It is provided with long round tube hole 132.
As shown in Figure 8,9, the two sides of wedge-shaped protrusion 36 of the middle part of pushing block 4 are respectively symmetrically and are provided with drops boss 24,
The middle position of drops boss 24 is respectively symmetrically and is provided with the second screwed hole 25 and the 3rd screwed hole 11, the top and bottom of pushing block 4
Centre position be provided with dovetail groove 26, be provided with the inclined-plane of the wedge-shaped slot 33 of the middle part of end cap 8 and be engaged with dovetail groove 26
Dovetail shaped it is raised.
Under working condition, pushing block 4 is being respectively arranged with the 4th spiral shell with the second circular hole 121 and the correspondence position of the 3rd circular hole 122
The axis of the screwed hole 272 of pit 271 and the 5th, the 4th screwed hole 272 and the second circular hole 121 on the same line, the 5th screw thread
The axis of the circular hole 122 of hole 272 and the 3rd on the same line, is respectively mounted in the 4th screwed hole 271 and in the 5th screwed hole 272
There are a screw axis 1, the screw thread being engaged with the 4th screwed hole 271 and the 5th screwed hole 272 is provided with screw axis 1.
As shown in figure 4, the top of screw axis 1 is provided with the first cross recess 9.
As shown in Fig. 3,7, a sliding nail 3 is separately installed with the second screwed hole 25 and in the 3rd screwed hole 11, sliding nail 3 is wrapped
Ailhead, rivet nut 19 and nail tail 20 are included, ailhead top is provided with the second cross recess 18, rivet nut 19 is provided with and the second screwed hole 25 and the
Three screwed holes 11 are engaged screw thread, and it is cylinder of the diameter less than rivet nut 19 to follow closely tail 20.
As shown in Figure 11,12, under working condition, away from one end of jackscrew 6, in its surface meta is installed the bottom of end cap 8
There are two semicylinder grooves 32, semicylinder groove 32 extends to wedge-shaped slot 33 along the length direction of end cap 8, and semicylinder is recessed
Groove 32 is engaged with screw axis 1, and the bottom centre position of 8 two sides of end cap is respectively equipped with a groove 34, the longitudinal direction of groove 34
Cross sectional shape is arc near one end of jackscrew 6, and the other end is wedge shape, and groove 34 is engaged with drops boss 24.
As shown in Figure 5,6, merging two sides of body 2, to be respectively equipped with a rectangle near the end of rectangular boss 16 recessed
Groove 14, the centre position of the bottom of rectangular recess 14 is designed with rectangular through-hole 15.
As shown in Fig. 3,10, the centre of the threaded portion 37 of jackscrew 6 is axially arranged with hexagon ring 29 along it, and the other end is provided with
Card-tight part 28, is connecting portion 38 between card-tight part 28 and threaded portion 37, and the external diameter of connecting portion is less than threaded portion 37 and card-tight part 28
External diameter, during installation, pin 5 is snapped onto on connecting portion 38.
During installation, first pilot pin 7 is respectively charged in the positioning pinholes 35 arranged on end cap 8, it is ensured that pilot pin 7 is not exposed
The surface of end cap 8, then the end cap 8 for installing pilot pin 7 is installed to the upper and lower surface of pushing block 4, is then loaded these components and is melted
Clutch body 2, is finally encased in the first screwed hole by jackscrew 6, and two pins 5 are encased in pin hole 23, and sliding nail 3 is led to respectively
Long round recessed 131 and long round tube hole 132 are encased in the second screwed hole 25 and the 3rd screwed hole 11, by two 1 point of screw axis
Not Chuan Guo the second circular hole 121 and the 3rd circular hole 122 be encased in the 4th screwed hole 271 and the 5th screwed hole 272, that is, complete to strut
The installation of type Invasive lumbar fusion device.After installing, rotation jackscrew 6 can drive pushing block 4 to move to one end, make wedge-shaped protrusion 36 along wedge shape
The inclined-plane of groove 33 slides, and the relative slip between wedge-shaped protrusion 36 and wedge-shaped slot 33 can make the distance between upper and lower two end caps 8
Increase, makes the parallel opening of end cap 8；The relation that the backbone position of the end cap 8 and its top and the bottom that strut type Invasive lumbar fusion device is parallel to each other,
So allow for strutting that the type Invasive lumbar fusion device backbone contact area upper and lower with it is larger, the type Invasive lumbar fusion device of strutting will not occur
It is mobile, strut the type Invasive lumbar fusion device that struts that mode is implanted into compared with other and more consolidate.The type Invasive lumbar fusion device that struts of the present invention is adopted
With side approach method for implantation, simply, an implantable fusion device can just complete pyramidal support, the wound very little to backbone for operation.
When assembling is improper to be needed to reassembly, or when needing taking-up to strut type Invasive lumbar fusion device, only need to reversely rotate
Jackscrew 6, because pin 5 is stuck on the connecting portion 38 of jackscrew 6,6 bottom card-tight part of jackscrew 28,38 prominent positions of relative connection
An outside pulling force can be applied to pin 5, drive pushing block 4 to return to initial bit, fusion device is square from softened state to original state
Just take out from centrum.
Guide-localization is played a part of in pin 5, sliding nail 3 and movement of the screw axis 1 to pushing block 4, when moving pushing block 4 along with
The parallel direction movement of end cap 8, also will not deflect, the abjection of anti-thrust block 4 to both sides, make to strut type Invasive lumbar fusion device and more put down
Steady and keeping parallelism struts upper and lower backbone, is implanted into.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. one kind struts type Invasive lumbar fusion device, it is characterised in that including fusion body, pushing block, jackscrew and end cap；The fusion device
Body is rectangular box-like, and the pushing block is arranged on portion in the fusion device body, and the end cap is two, is separately positioned on the fusion
The tip position and bottom position of body, the fusion body end face is provided with rectangular boss, and the other end is transited into tip-angled shape,
Be provided with the first screwed hole in the middle of the rectangular boss, described jackscrew one end is threaded portion, the periphery of the threaded portion be provided with
The jackscrew screw thread that first corresponding threaded holes are closed, first screwed hole and the jackscrew are threaded connection, the pushing block
Two ends and centre position are respectively arranged with wedge-shaped protrusion, and under working condition, the wedge-shaped protrusion is platform near one end of jackscrew,
The pushing block is provided near the platform of the wedge-shaped protrusion of jackscrew and coordinates the first circular hole installed with the jackscrew, on the end cap
Surface is evenly equipped with detent projection, and the two ends and centre position of the end cap bottom are provided with the wedge being engaged with the wedge-shaped protrusion
Shape groove, during work, rotates jackscrew, drives pushing block to move to one end, makes the wedge-shaped protrusion slide along the inclined-plane of the wedge-shaped slot,
By the end cap parallel opening.
2. it is according to claim 1 to strut type Invasive lumbar fusion device, it is characterized in that：The top of the first circular hole of the pushing block and
Bottom is respectively arranged with the pin hole through the pushing block, and the pin hole is vertical with first circular hole, in the pin hole
It is separately installed with pin.
3. it is according to claim 1 to strut type Invasive lumbar fusion device, it is characterized in that：The end cap middle part is provided with the first square
Shape hole and the second rectangular opening, the pushing block is respectively arranged with the rectangular opening of the end cap first and the second rectangular opening correspondence position
Three rectangular openings and the 4th rectangular opening, arrange six positioning pinholes on the end cap, in the location hole pilot pin is provided with.
4. it is according to claim 1 to strut type Invasive lumbar fusion device, it is characterized in that：Described fusion body tip-angled shape one end central authorities
Position is provided with the second circular hole and the 3rd circular hole, and at its center position is respectively symmetrically and is provided with oval on two sides of the fusion body
Groove, the centre position of the oval bottom portion of groove is provided with long round tube hole.
5. it is according to claim 4 to strut type Invasive lumbar fusion device, it is characterized in that：The wedge-shaped protrusion of the pushing block middle part
Two sides are respectively symmetrically and are provided with drops boss, and the drops boss middle position is respectively symmetrically and is provided with the second screwed hole and
The centre position of three screwed holes, pushing block top and bottom is provided with dovetail groove, the wedge-shaped slot of the end cap middle part it is oblique
The dovetail shaped being engaged with the dovetail groove is provided with face raised.
6. it is according to claim 5 to strut type Invasive lumbar fusion device, it is characterized in that：Under working condition, the pushing block with institute
State the second circular hole and the corresponding position of the 3rd circular hole is respectively arranged with the 4th screwed hole and the 5th screwed hole, the 4th screwed hole
With the axis of second circular hole on the same line, the 5th screwed hole with the axis of the 3rd circular hole in same straight line
On, a screw axis are separately installed with the 4th screwed hole and in the 5th screwed hole, it is provided with the screw axis
The screw thread closed with the 4th screwed hole and the 5th corresponding threaded holes, the screw axis top is provided with the first cross recess.
7. it is according to claim 5 to strut type Invasive lumbar fusion device, it is characterized in that：With the 3rd screw thread in second screwed hole
A sliding nail is separately installed with hole, the sliding nail includes ailhead, rivet nut and nail tail, and the ailhead top is provided with the second cross
Groove, the rivet nut is provided with closes screw thread with second screwed hole and the 3rd corresponding threaded holes, and the nail tail is diameter less than described
The cylinder of rivet nut.
8. it is according to claim 6 to strut type Invasive lumbar fusion device, it is characterized in that：Under working condition, the end cap bottom back of the body
From one end of jackscrew, in its surface meta is installed and is equipped with two semicylinder grooves, and the semicylinder groove is along the end cap
Length direction extend to the wedge-shaped slot, the semicylinder groove is engaged with the screw axis, two sides of the end cap
The bottom centre position in face is respectively equipped with a groove, and the groove longitudinal section shape is arc near one end of jackscrew, separately
One end is wedge shape, and the groove is engaged with the drops boss.
9. type Invasive lumbar fusion device is strutted according to claim 1 or 4, be it is characterized in that：Two sides of the fusion body
End near the rectangular boss is respectively equipped with a rectangular recess, and the centre position of the rectangular recess bottom is provided with rectangle
Through hole.
10. it is according to claim 1 to strut type Invasive lumbar fusion device, it is characterized in that：The central part of the threaded portion of the jackscrew
Position is provided with hexagon ring, and the other end is provided with card-tight part, is connecting portion between the card-tight part and the threaded portion, the connecting portion
External diameter is less than the threaded portion and the external diameter of the card-tight part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903300.5A CN105326587B (en) | 2015-12-09 | 2015-12-09 | Opening type interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903300.5A CN105326587B (en) | 2015-12-09 | 2015-12-09 | Opening type interbody fusion cage |
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| Publication Number | Publication Date |
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| CN105326587A CN105326587A (en) | 2016-02-17 |
| CN105326587B true CN105326587B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510903300.5A Active CN105326587B (en) | 2015-12-09 | 2015-12-09 | Opening type interbody fusion cage |
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| CN105853030A (en) * | 2016-03-25 | 2016-08-17 | 广州军区广州总医院 | Dilatable cervical vertebral fusion cage |
| CN106236330B (en) * | 2016-08-22 | 2019-03-05 | 浙江康慈医疗科技有限公司 | Dypass waist Invasive lumbar fusion device |
| CN106308982A (en) * | 2016-08-22 | 2017-01-11 | 浙江康慈医疗科技有限公司 | Lumbar interbody fusion cage |
| CN107157629A (en) * | 2017-06-15 | 2017-09-15 | 北京安德思考普商贸有限公司 | New vertebrae mixer |
| CN107890384B (en) * | 2017-12-20 | 2024-02-02 | 山东威高骨科材料股份有限公司 | 3D printing interbody fusion cage and assembly and fixation method thereof |
| CN109758271B (en) * | 2019-02-20 | 2024-05-14 | 江苏百易得医疗科技有限公司 | Fusion device |
| CN109998740B (en) * | 2019-04-17 | 2024-02-13 | 河北瑞鹤医疗器械有限公司 | Fusion device capable of being opened |
| CN110974492B (en) * | 2019-10-29 | 2021-08-03 | 郑州大学第一附属医院 | Under-mirror reset type lumbar spondylolisthesis interbody fusion cage |
| CN115531054A (en) * | 2021-04-26 | 2022-12-30 | 上海三友医疗器械股份有限公司 | Lateral approach fusion device |
| CN114795594B (en) * | 2022-06-30 | 2022-10-14 | 北京爱康宜诚医疗器材有限公司 | Prosthesis filling assembly |
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| CN104783935A (en) * | 2015-04-21 | 2015-07-22 | 李鹏 | Expandable interbody fusion cage |
| CN205359717U (en) * | 2015-12-09 | 2016-07-06 | 胡桓宇 | Type interbody fusion cage struts |
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| US9233007B2 (en) * | 2012-02-13 | 2016-01-12 | Blue Tip Biologics, Llc | Expandable self-anchoring interbody cage for orthopedic applications |
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| WO2000016711A2 (en) * | 1998-09-21 | 2000-03-30 | Meriwether Michael W | Box cage for intervertebral body fusion |
| CN202235781U (en) * | 2011-09-19 | 2012-05-30 | 苏州欣荣博尔特医疗器械有限公司 | Expanding interbody fusion cage |
| WO2014026041A2 (en) * | 2012-08-08 | 2014-02-13 | Robinson James C | Expandable dlif cage assemblies and methods |
| CN104783935A (en) * | 2015-04-21 | 2015-07-22 | 李鹏 | Expandable interbody fusion cage |
| CN205359717U (en) * | 2015-12-09 | 2016-07-06 | 胡桓宇 | Type interbody fusion cage struts |
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