CN208876912U - A kind of Invasive lumbar fusion device - Google Patents
A kind of Invasive lumbar fusion device Download PDFInfo
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- CN208876912U CN208876912U CN201820589633.4U CN201820589633U CN208876912U CN 208876912 U CN208876912 U CN 208876912U CN 201820589633 U CN201820589633 U CN 201820589633U CN 208876912 U CN208876912 U CN 208876912U
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- fusion device
- expansion
- invasive lumbar
- lumbar fusion
- extension fixture
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- 230000004927 fusion Effects 0.000 title claims abstract description 86
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 31
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 239000007787 solid Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- 210000000845 cartilage Anatomy 0.000 abstract description 4
- 210000001519 tissue Anatomy 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model provides a kind of Invasive lumbar fusion device, for being placed in interbody space, including fusion device ontology and expander, bone grafting slot is provided in fusion device ontology, expander is set in bone grafting slot, expander includes extension fixture and the regulating device for adjusting the extension fixture, extension fixture is configured to the expansion state for being completely accommodated in extended bone grafting slot after original state and expansion in the bone grafting slot, and regulating device is configured to that extension fixture is made to switch to expansion state by original state and hammers into centrum.It is instant fixed that a kind of Invasive lumbar fusion device provided by the utility model can be such that fusion device obtains between upper hypocentrum, guarantee antiskid effect and supporting role, pedicle screw-rod can be exempted to fix, reduce operating difficulty and risk, and effective support to centrum can be played, support function is good and can be avoided the influence stopped by the endplate cartilage of disc tissue and remnants, and the anti-skidding shifting function of Invasive lumbar fusion device has been effectively ensured in good fixing effect.
Description
Technical field
The utility model relates to the field of medical instrument technology, more particularly to a kind of Invasive lumbar fusion device.
Background technique
Invasive lumbar fusion device is placed in interbody space after lumbar diskectomy, plays recovery disc height, in support
Hypocentrum load, the device for making hypocentrum combine together.Existing straight clinical verification of the type Invasive lumbar fusion device through many years, is one
Effective, the safe device of kind.But due to the end face up and down of centrum be concavity so that disc height present both ends it is short,
The shape of middle minister, along with differences such as the individual of patient, age, physical conditions, the upper and lower soleplate bone face of intervertenral space is simultaneously irregular.
Existing Invasive lumbar fusion device usually occurs placing difficulty during surgery, and loosens after being placed in, and causes the support of fusion device
Function and anti-skidding shifting function are lost, and fusion device occur and slide into canalis spinalis and the problem of bone grafting does not merge.
Now in order to which the support function for solving the problems, such as fusion device and anti-skidding shifting function are lost, conventional use increases up and down now
The fixed scheme of centrum pedicle screw-rod, but operating time and expense are both increased in this way, also increase operation risk.Now also have
Using the scheme of the Invasive lumbar fusion device of variable volume, such as application No. is 201711381218.6 Chinese patents to disclose a kind of body
Product variable Invasive lumbar fusion device and its implanted device, by making fusion device ontology front end open predetermined angle, so that fusion device sheet
The volume expansion of body can make Invasive lumbar fusion device more meet clinical demand, improve fusion rate.But after on the one hand opening so only
The soleplate bone face contact of fusion device ontology front end and centrum, reduces the bearing plane of fusion device, support effect is bad；On the other hand
In view of the endplate cartilage of disc tissue and remnants stop, and the typically no dentation in fusion device front end is prominent, melting after expansion
The anti-skidding shifting function of clutch and the function of stablizing upper hypocentrum are insufficient；In addition, it is contemplated that intervertenral space front end have fibrous ring and before indulge it is tough
Band connection, intervertenral space increase is height-limited, so that being easy to be limited in the opening process of fusion device ontology front end causes fusion device whole
After slide, exacerbate slippage risk, still need to pedicle screw-rod and fix.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of Invasive lumbar fusion devices, it can effectively reinforce intervertebral and melt
Clutch and interpyramidal fixation guarantee anti-skidding shifting function and support function and can reduce operating difficulty and risk, when reducing operation
Between and expense.
In order to solve the above technical problems, the utility model provides a kind of Invasive lumbar fusion device, for being placed in interbody space
It is interior, including fusion device ontology and expander, it is provided with bone grafting slot in the fusion device ontology, the expander is set to the plant
In bone slot, the expander includes extension fixture and the regulating device for adjusting the extension fixture, and the extension fixture is matched
It is set to the expansion for being completely accommodated in extended bone grafting slot after original state and expansion in the bone grafting slot of the fusion device ontology
The state of opening, the regulating device are configured to that the extension fixture is made to switch to expansion state by original state and hammer into centrum
It is interior.
As a kind of preferred embodiment of the utility model, the extension fixture includes linking arm and is fixed on by fixing end
Two expansion arms on the linking arm；The free end of the expansion arm is equipped with fixed structure；The regulating device is to push away column, institute
State push away column may pass through the linking arm and push two expansion arms free end be located remotely from each other.
As a kind of preferred embodiment of the utility model, the fixed structure includes a cuved nail, and the cuved nail prolongs
Stretch in the free end of the expansion arm.
As a kind of preferred embodiment of the utility model, the fixed structure further includes two plane nails, the plane nail
Set on the two sides of the expansion arm.
As a kind of preferred embodiment of the utility model, plane nail be set at the two sides of the expansion arm and with institute
It is vertical to state expansion arm.
As a kind of preferred embodiment of the utility model, the fixing end of the expansion arm is equipped with for being plugged in the fusion
Hook nail on device ontology.
As a kind of preferred embodiment of the utility model, the hook nail passes through the cutting openings formation in the expansion arm
Clout is bent into.
As a kind of preferred embodiment of the utility model, the expansion arm pushes away column side equipped with cushion block described in.
As a kind of preferred embodiment of the utility model, the linking arm is equipped with the first threaded hole, it is described push away column be with
The matched bolt of first threaded hole.
As a kind of preferred embodiment of the utility model, the fusion device ontology includes leading portion, back segment and two connection institutes
The interlude of leading portion and back segment is stated, the leading portion is equipped with the second threaded hole, and the back segment is equipped with third threaded hole；Described
Two threaded holes and third threaded hole are corresponding with the bolt and be located along the same line with first threaded hole.
The utility model has the following technical effect that a kind of Invasive lumbar fusion device provided by the utility model is located at by setting
The intrinsic expander of fusion device, so that the extension fixture of expander has the bone grafting slot for being completely accommodated in the fusion device ontology
The expansion state of extended bone grafting slot after interior original state and expansion, original state are quickly implanted between centrum convenient for fusion device,
It is in expansion state after implantation, obtains fusion device between upper hypocentrum instant fixed, guarantees antiskid effect and supporting role,
Pedicle screw-rod can be exempted to fix, reduce operating difficulty and risk, and due to hammering into centrum using extension fixture, this
Sample can guarantee the fixation of the global shape of fusion device ontology, so that the both ends of fusion device ontology can be played to centrum
Effectively support, support function is good, and individually hammers into centrum using extension fixture, and good fixing effect can be avoided by interverbebral disc
The influence that the endplate cartilage of tissue and remnants stop, has been effectively ensured the anti-skidding shifting function of Invasive lumbar fusion device.In addition, by making to expand
Stretch one's arms for one end connection structure, there are certain elasticity, it is closer with centrum to be better achieved to can be realized local deformation
Contact, so as to further function as effective support to centrum.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, the attached drawing of embodiment will be made below simple
Ground introduction, it should be apparent that, the accompanying drawings in the following description merely relates to some embodiments of the utility model, rather than practical to this
Novel limitation.
Fig. 1 is a kind of structural schematic diagram of Invasive lumbar fusion device provided by the utility model；
Fig. 2 is a kind of original state schematic diagram of expander provided by the utility model；
Fig. 3 is a kind of expansion state schematic diagram of expander provided by the utility model；
Fig. 4 is a kind of merging centrum schematic diagram of expander provided by the utility model；
Fig. 5 is that a kind of expander provided by the utility model hammers into centrum schematic diagram；
Fig. 6 is a kind of structural schematic diagram of extension fixture provided by the utility model；
Fig. 7 is a kind of structural schematic diagram of fixed structure provided by the utility model；
Fig. 8 is a kind of arrangement schematic diagram of cushion block provided by the utility model；
Fig. 9 is a kind of arrangement schematic diagram of second threaded hole and third threaded hole provided by the utility model.
Specific embodiment
To make the purpose of this utility model, technical solution and advantage are clearer, with reference to the accompanying drawing to the utility model
Embodiment is described in further detail.Obviously, described embodiment is a part of the embodiment of the utility model, rather than
Whole embodiments.Based on described the embodiments of the present invention, those of ordinary skill in the art are without creative labor
Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.
As shown in Figs. 1-5, which show a kind of Invasive lumbar fusion devices provided by the utility model.The Invasive lumbar fusion device is for setting
Enter in 100 gap of centrum, the expander 2 including fusion device ontology 1 and in the fusion device ontology 1, the fusion device sheet
Bone grafting slot 10 is provided in body 1, the expander 2 is set in the bone grafting slot 10, and the expander 2 includes extension fixture 21
With the regulating device 22 for adjusting the extension fixture 21, the extension fixture 21, which is configured to have, is completely accommodated in described melt
The expansion state of extended bone grafting slot 10, the regulating device after original state and expansion in the bone grafting slot 10 of clutch ontology 1
22 are configured to that extension fixture 21 is made to switch to expansion state by original state and hammer into centrum 100.
In this way, being located at the expander 2 in fusion device ontology 1 by setting, so that the extension fixture 21 of expander 2 has had
It is contained in the expansion shape of extended bone grafting slot 10 after original state and expansion in the bone grafting slot 10 of the fusion device ontology 1 entirely
State guarantees antiskid effect and supporting role so as to effectively reinforce the fixation between Invasive lumbar fusion device and upper hypocentrum 100,
Specifically, when in use, by the way that Invasive lumbar fusion device to be placed in intervertenral space, since the original state of extension fixture 21 is to hold completely
It is contained in the bone grafting slot 10, therefore does not interfere with the merging of Invasive lumbar fusion device.It can be filled by adjusting after the completion of merging
Setting 22 adjustings makes the extension fixture 21 be switched to expansion state by original state and be hammered into centrum 100, to be effectively ensured
Closeness of contact between Invasive lumbar fusion device and centrum 100 obtains Invasive lumbar fusion device between upper hypocentrum instant fixed, guarantees
Antiskid effect and supporting role, can exempt pedicle screw-rod and fix, ensure that the support force of Invasive lumbar fusion device, reduce operation
Difficulty and risk, and Invasive lumbar fusion device provided in this embodiment is consistent with the merging means of existing Invasive lumbar fusion device, hand of performing the operation
Section is mature, can reduce operating difficulty and risk, reduces operating time and expense.And due to hammering into vertebra using extension fixture 21
In body 100, in such manner, it is possible to guarantee the fixation of the global shape of fusion device ontology 1, so that the both ends of fusion device ontology 1 can
Effective support to centrum 100 is played, support function is good, and individually hammers into centrum 100 using extension fixture 21, effect fixed in this way
Fruit is good, can be avoided the influence stopped by the endplate cartilage of disc tissue and remnants, Invasive lumbar fusion device has been effectively ensured
Anti-skidding shifting function.Preferably, the distance that the extension fixture 21 stretches out the bone grafting slot 10 after expanding can be with the bone grafting slot
10 depth is consistent, i.e., the size that centrum 100 can be hammered into after the expansion of extension fixture 21 is consistent with the depth of bone grafting slot 10, thus
It can guarantee that the original state before expansion is set to completely in bone grafting slot 10, do not interfere with the merging of Invasive lumbar fusion device and can have
The space being utilized in bone grafting slot is imitated, increases and hammers into depth, ensure that fixed effect.
Specifically, in the present embodiment, as illustrated in figs. 5-7, the extension fixture 21 including linking arm 211 and passes through fixation
Hold two expansion arms 212 being fixed on the linking arm 211；I.e. expansion arm 212 is fixed on linking arm 211 by one end,
The end is fixing end, so that the free end of expansion arm 212 has good elasticity, expansion may be implemented and stretch out fusion device ontology 1
Bone grafting slot 10；The free end of the expansion arm 212 is equipped with fixed structure 213；The regulating device 22 is to push away column, described to push away column
The free end that may pass through two expansion arms 212 of the linking arm 211 and pushing is located remotely from each other.In this way, by described in adjusting
Push away column gradually close to the free end of two expansion arms 212, under the push effect for pushing away column, the free end phase of two expansion arms 212
It is mutually separate, then fixed structure 213 is driven to be located remotely from each other, can be achieved with expansion and stretch out the expansion state of bone grafting slot 10 and make solid
Determine structure 213 and gradually hammers into centrum 100.And setting extension fixture 21 in this way is making fixed structure 213 hammer into centrum
While 100 realization fixed effect, due to the structure that expansion arm 212 is one end connection, there are certain elasticity, so as to realize
Local deformation is contacted with being better achieved with the closer of centrum 100, so as to further function as effective branch to centrum 100
Support.
Specifically, the fixed structure 213 includes a cuved nail 2131 and two plane nails 2132.The cuved nail
2131 extend the free end of the expansion arm 212 and radius is consistent with the length of the expansion arm 212.In this way, adjusting
When device 22 is pushed so that the free end of expansion arm 212 drives fixed structure 213 to be located remotely from each other, the curve movement of cuved nail 2131
To do the circular motion that radius is 212 length of expansion arm around 212 fixing end of expansion arm, make radius and the institute of the cuved nail 2131
The length for stating expansion arm 212 is consistent, meets the mechanics hammered into 100 sclerotin of centrum, can be conducive to cuved nail 2131 and hammer into vertebra
In body 100；The plane nail 2132 is at the two sides of the expansion arm and vertical with the expansion arm, and being arranged so can
Grip can be effectively increased, reinforced fixed structure 213 hammers into the stability after centrum 100, improves fixed effect.Further, institute
The fixing end for stating expansion arm 212 is additionally provided with the hook nail 214 that can be buckled on the fusion device ontology 1, is buckled in this way by hook nail 214
On fusion device ontology 1, so as to which the fixation of expander 2 and fusion device ontology 1 is effectively ensured, increase by 100 fusion device knot of centrum
Structure stability, further, the hook nail 214 bend system by the clout that cutting openings 215 are formed in the expansion arm 212
At the aperture 215 being equipped in this way can further strengthen the elasticity of expansion arm 212, enhance deformability, realize and centrum 100
Closer contact, so as to further function as effective support to centrum 100.Preferably, and aperture 215 can be formed simultaneously
With hook nail 214, production efficiency is effectively improved, reduces production cost.
Further, the expansion arm 212 is also provided with cushion block 216 towards the column side that pushes away.One side energy in this way
Enough separate distances increased when pushing two expansion arms 212 between 212 free end of expansion arm increase fixed structure and hammer into centrum
100 depth is further ensured that fixed effect, and on the other hand, being limited in 212 free end of expansion arm by 100 structure of centrum cannot
Further increase apart from when, cushion block can jack up expansion arm 212 middle part increase expansion arm 212 deformability, make expansion arm
It further realizes and is contacted with the closer of centrum 100, improve the support function of Invasive lumbar fusion device.
Preferably, the linking arm 211 is equipped with the first threaded hole 2111, and the column that pushes away is and first threaded hole
2111 matched bolts.Preferably, the spiral front end be equipped with chamfering, the thread connecting mode being arranged in this way stablize it is durable, and
The degrees of expansion that extension fixture 21 can be adjusted by rotation bolt, can effectively improve the accuracy of adjusting.Further, such as
Shown in Fig. 8, the fusion device ontology 1 includes the interlude of leading portion 11, back segment 12 and two the connections leading portions 11 and back segment 12
13, the leading portion 11 is equipped with the second threaded hole 111, and the back segment 12 is equipped with third threaded hole 121；Second threaded hole
111 and third threaded hole 121 it is corresponding with the bolt and be located along the same line with first threaded hole 2111.It is preferred that
Ground, the second threaded hole 111 can be the through-hole not through leading portion, be also possible to the through-hole through leading portion.In this way, can be by making
The bolt is effectively connected by passing through first threaded hole 2111, the second threaded hole 111 and third threaded hole 121
Leading portion 11, back segment 12 and the expander 2 of the fixed fusion device ontology 1, effectively strengthen the integral strength of Invasive lumbar fusion device.
Specifically, the leading portion 11 and back segment 12 are equipped with arcwall face, and the interlude 13 is equipped with convex towards the dentation of centrum 100
It rises, the displacement of Invasive lumbar fusion device can be better protected from.
The above-mentioned embodiments merely express the embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Therefore it cannot be interpreted as that a limitation on the scope of the patent of the present invention, as long as using the form institute of equivalent substitution or equivalent transformation
The technical solution of acquisition, shall fall within the scope of the present invention.
Claims (10)
1. a kind of Invasive lumbar fusion device, for being placed in interbody space, which is characterized in that including fusion device ontology and expander, institute
It states and is provided with bone grafting slot in fusion device ontology, the expander is set in the bone grafting slot, and the expander includes expansion dress
It sets and the regulating device for adjusting the extension fixture, the extension fixture, which is configured to have, is completely accommodated in the fusion device
The expansion state of extended bone grafting slot, the regulating device are configured to after original state and expansion in the bone grafting slot of ontology
So that the extension fixture is switched to expansion state by original state and hammers into centrum.
2. Invasive lumbar fusion device according to claim 1, which is characterized in that the extension fixture includes linking arm and passes through solid
Two expansion arms on the linking arm are fixed in fixed end；The free end of the expansion arm is equipped with fixed structure；The adjusting dress
Be set to and push away column, it is described push away column may pass through the linking arm and push two expansion arms free end be located remotely from each other.
3. Invasive lumbar fusion device according to claim 2, which is characterized in that the fixed structure includes a cuved nail, institute
State the free end that cuved nail extends the expansion arm.
4. Invasive lumbar fusion device according to claim 3, which is characterized in that the fixed structure further includes two plane nails,
The plane nail is set to the two sides of the expansion arm.
5. Invasive lumbar fusion device according to claim 4, which is characterized in that the plane nail is set to the two sides of the expansion arm
It is at side and vertical with the expansion arm.
6. Invasive lumbar fusion device according to claim 2, which is characterized in that the fixing end of the expansion arm, which is equipped with, is used for grafting
Hook nail on the fusion device ontology.
7. Invasive lumbar fusion device according to claim 6, which is characterized in that the hook nail in the expansion arm by cutting
The clout that opening is formed is bent into.
8. Invasive lumbar fusion device according to claim 2, which is characterized in that the expansion arm pushes away column side described in and is equipped with
Cushion block.
9. Invasive lumbar fusion device according to claim 2, which is characterized in that the linking arm is equipped with the first threaded hole, institute
State push away column be and the matched bolt of the first threaded hole.
10. Invasive lumbar fusion device according to claim 9, which is characterized in that the fusion device ontology include leading portion, back segment and
The interlude of two the connections leading portions and back segment, the leading portion are equipped with the second threaded hole, and the back segment is equipped with third spiral shell
Pit；Second threaded hole and third threaded hole are corresponding with the bolt and be located at same straight line with first threaded hole
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820589633.4U CN208876912U (en) | 2018-04-24 | 2018-04-24 | A kind of Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820589633.4U CN208876912U (en) | 2018-04-24 | 2018-04-24 | A kind of Invasive lumbar fusion device |
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| Publication Number | Publication Date |
|---|---|
| CN208876912U true CN208876912U (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820589633.4U Expired - Fee Related CN208876912U (en) | 2018-04-24 | 2018-04-24 | A kind of Invasive lumbar fusion device |
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| Country | Link |
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| CN (1) | CN208876912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108478311A (en) * | 2018-04-24 | 2018-09-04 | 黄振强 | A kind of Invasive lumbar fusion device |
| CN110522537A (en) * | 2019-09-06 | 2019-12-03 | 昆明医科大学第一附属医院 | A kind of fixed fusing device of backbone intervertebral |
-
2018
- 2018-04-24 CN CN201820589633.4U patent/CN208876912U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108478311A (en) * | 2018-04-24 | 2018-09-04 | 黄振强 | A kind of Invasive lumbar fusion device |
| CN108478311B (en) * | 2018-04-24 | 2024-01-16 | 黄振强 | Interbody fusion cage |
| CN110522537A (en) * | 2019-09-06 | 2019-12-03 | 昆明医科大学第一附属医院 | A kind of fixed fusing device of backbone intervertebral |
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| CF01 | Termination of patent right due to non-payment of annual fee |