CN109806034A - Lumbar vertebral posterior interbody cage systems - Google Patents
Lumbar vertebral posterior interbody cage systems Download PDFInfo
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- CN109806034A CN109806034A CN201910244566.1A CN201910244566A CN109806034A CN 109806034 A CN109806034 A CN 109806034A CN 201910244566 A CN201910244566 A CN 201910244566A CN 109806034 A CN109806034 A CN 109806034A
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- China
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- fusion device
- main body
- interbody cage
- lumbar vertebral
- cage systems
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Abstract
The invention discloses a kind of lumbar vertebral posterior interbody cage systems, including fusion device main body and screw；The fusion device main body includes the fusion device front end and fusion device end of petition warhead structure, perforative bone grafting chamber up and down is formed in fusion device main body between fusion device front end and fusion device end, is evenly arranged with multiple anti-skidding convex bodys in the upper and lower surface of fusion device main body；The tip of at least two screws is tilted from the upper and lower surface of fusion device end respectively to be stretched out.The present invention lumbar vertebral posterior interbody cage systems for the operation, the system can complete the fixation of Invasive lumbar fusion device and adjacent vertebral well, are not necessarily to pedicle screw, reach the treatment requirement and purpose of new modus operandi.
Description
Technical field
The invention belongs to lumbar vertebral posterior auxiliary instrument technical field, in particular to a kind of lumbar vertebral posterior interbody cage systems.
Background technique
Lumbar vertebral posterior decompression interbody fusion is the lumbar vertebraes common diseases such as the treatment protrasion of the lumbar intervertebral disci, lumbar spinal stenosis
Most common modus operandi, specifically with fusion Posterior Lumbar Interbody between posterior approach lumbar vertebra
Fusion Transforaminal Lumbar Interbody between Fusion, PLIF, transforaminal approach lumbar vertebra
Fusion Minimally Invasive between transforaminal approach lumbar vertebra under Fusion, TLIF, minimally invasive channel
Tri- kinds of operation methods of Surgery --- Transforaminal Lumbar Interbody Fusion, MIS-TLIF carry out real
It applies.In the clinical practice of recent decades, three kinds of modus operandis achieve good clinical efficacy；However these three operation sides
Formula is both needed to fix after intervertebral bone graft and implantation Invasive lumbar fusion device using pedicle screw, this has not only aggravated the wound of operation,
It is likely to occur screw loosening, the related complications such as unsuccessfully and most important drawback simultaneously and is that patient often needs to melt to intervertebral
It closes good rear second operation row pedicle screw and takes out treatment.
Summary of the invention
In order to avoid above-mentioned modus operandi drawback, the present invention provides a kind of lumbar vertebral posterior interbody cage systems, the systems
The fixation of Invasive lumbar fusion device and adjacent vertebral can be completed well, be not necessarily to pedicle screw, reached the treatment of new modus operandi
It is required that and purpose.
To achieve the above object, the present invention uses following technological means:
A kind of lumbar vertebral posterior interbody cage systems, including fusion device main body and screw；The fusion device main body is including being in
The fusion device front end and fusion device end of bullet header structure, shape in the fusion device main body between fusion device front end and fusion device end
At upper and lower perforative bone grafting chamber, multiple anti-skidding convex bodys are evenly arranged in the upper and lower surface of fusion device main body；At least two screws
Tip respectively from the upper and lower surface of fusion device end tilt stretch out.
The fusion device main body is the integral structure body that appearance is in shuttle shape.
The anti-skidding convex body is hangnail, and the tip of hangnail is tilted to fusion device end.
The fusion device main body is the arc-shaped integral structure body of appearance；The anti-skidding convex body is pyramid.
The intracavitary baffle being provided with for bone grafting chamber to be divided into multiple spaces of the bone grafting.
The viewing hole being connected to bone grafting chamber is provided on the side wall of the fusion device main body.
Auxiliary mounting groove is additionally provided on the fusion device end.
The Anti-off bolt for preventing toner screw is additionally provided on the fusion device end, Anti-off bolt is arranged in rank
In terraced hole, spring is provided in Anti-off bolt main body；Under spring effect, Anti-off bolt can block screw.
The nut of the screw is embedded in fusion device end, and nut is without departing from fusion device exterior end.
The fusion device main body is made of polyetheretherketonematerials materials or titanium alloy material；Screw is swell fixture.
Compared with prior art, the invention has the following advantages:
Lumbar vertebral posterior interbody cage systems of the invention, fusion device is fixed in adjacent vertebral, is carried out inside fusion device
Bone grafting realizes the primary fixation of fusion device and centrum by anti-skidding convex body, and screw is stretched out from fusion device end carries out two with centrum
Secondary fixation, and then realize the operation of lumbar vertebral posterior intervertebral fusion.The structure eliminates lumbar vertebral posterior intervertebral fusion surgical procedure
Pedicle screw implantation, avoids complication relevant to pedicle screw, it is often more important that and patient only needs an operative treatment,
Inside-fixture is taken out without second operation, avoids the risk of second operation, while greatly reducing patient's medical expense.By
This, lumbar vertebral posterior interbody cage systems of the present invention for the operation, the system can complete well Invasive lumbar fusion device with
The fixation of adjacent vertebral is not necessarily to pedicle screw, reaches the treatment requirement and purpose of new modus operandi.
Detailed description of the invention
Fig. 1 is the lumbar vertebral posterior interbody cage systems structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the structural front view of Fig. 1；
Fig. 3 is the structure top view of Fig. 1；
Fig. 4 is the lumbar vertebral posterior interbody cage systems structural schematic diagram of the embodiment of the present invention 2；
Fig. 5 is the structural front view of Fig. 4；
Fig. 6 is the structure top view of Fig. 4；
Fig. 7 is the middle Anti-off bolt partial enlarged view of Fig. 6；
Figure label represents: 1, fusion device main body, 2, screw, 3, fusion device end, 4, auxiliary mounting groove, 5, viewing hole,
6, bone grafting chamber, 7, baffle, 8, hangnail, 9, fusion device front end, 10, Anti-off bolt, 11, spring, 12, backing pin.
Specific embodiment
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
To make the object, technical solutions and advantages of the present invention clearer, with reference to the accompanying drawings and examples to the present invention
Specific implementation situation be described further, the explanation of the invention is not limited.
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of lumbar vertebral posterior interbody cage systems of the present invention, including fusion device main body 1 and screw 2；
Fusion device main body 1 is the integral structure body that appearance is in shuttle shape.The fusion device main body 1 includes the fusion of petition warhead structure
Device front end 9 and fusion device end 3 form in the fusion device main body 1 between fusion device front end 9 and fusion device end 3 and run through up and down
Bone grafting chamber 6, be evenly arranged with multiple anti-skidding convex bodys in the upper and lower surface of fusion device main body 1；The nose part of at least two screws 2
It does not tilt and stretches out from the upper and lower surface of fusion device end 3.
Wherein, anti-skidding convex body is hangnail 8 or the cuspidated protrusion of tool, and the tip of hangnail 8 is tilted to fusion device end 3,
Realize the primary fixation of fusion device 1.The baffle 7 for bone grafting chamber 6 to be divided into multiple spaces is provided in bone grafting chamber 6, this
The structure of sample helps to carry out bone grafting to small space respectively, convenient for the closeness of bone grafting, while its intensity that can increase fusion device,
Avoid in instrumentation and the postoperative breakage for fusion device occur, fracture.
Be provided with the viewing hole 5 being connected to bone grafting chamber 6 on the side wall of fusion device main body 1, the setting of viewing hole 5 unilateral or
Two sides.
It is provided with auxiliary mounting groove 4 on fusion device end 3, in fusion device surgical procedure, auxiliary locating tool one end is inserted
Enter auxiliary mounting groove 4, clamp auxiliary locating tool by other clamping devices needs to merge by safe and accurate be placed in of fusion device 1
Between centrum, it is ensured that position placement is good during surgery for fusion device 1.
In order to carry out the fixation of centrum, the phenomenon that falling off after performing the operation to Invasive lumbar fusion device in the intervertebral fusion phase, screw 2 are prevented
End fixed with upper hypocentrum, realize the secondary fixation of fusion device 1.The nut of screw 2 is embedded in fusion device end 3,
And nut without departing from fusion device end 3 outside.It thus is avoided that screw causes to stimulate to nerve and dural sac, while fixing well
Invasive lumbar fusion device, is omitted the application of pedicle screw, avoids the needs of patient's row second operation.
When fusion device main body 1 is placed between adjacent vertebral, by the tip of two screws 2 respectively from fusion device end 3
Upper and lower surface tilt and stretch out, and then carry out being screwed for screw 2 and centrum.Since 3 structure of fusion device end is small, two spiral shells
Nail 2 needs the unique angle tool that contains to be screwed when being fixed, be fixedly secured Invasive lumbar fusion device, and ensure fusion device main body
1 is balanced fixation, prevents fixation from causing positional shift.
Fusion device main body 1 is made of polyetheretherketonematerials materials (PEEK) or titanium alloy material；Screw 2 can for plain screw or
Person's swell fixture is the specific coatings screw for Bone Ingrowth.
The present invention improves tri- kinds of operation methods of PLIF, TLIF, MIS-TLIF, after being implanted into Invasive lumbar fusion device,
Directly fusion device is fixed in adjacent vertebral, the necessity of pedicle screw implantation is eliminated, avoids and pedicle screw
Relevant complication, it is often more important that patient only needs an operative treatment, takes out inside-fixture without second operation, avoids two
The risk of secondary operation, while greatly reducing patient's medical expense.Lumbar vertebral posterior of the present invention for the novel operation as a result,
Interbody cage systems, the system can complete the fixation of Invasive lumbar fusion device and adjacent vertebral well, are not necessarily to pedicle screw, reach
Treatment requirement and purpose to new modus operandi.
Embodiment 2
As shown in Figures 4 to 6, a kind of lumbar vertebral posterior interbody cage systems of the present invention, including fusion device main body 1 and screw 2；
Fusion device main body 1 is the arc-shaped integral structure body (being approximately " kidney shape ") of appearance.The fusion device main body 1 includes petition
The fusion device front end 9 and fusion device end 3 of warhead structure, the fusion device main body 1 between fusion device front end 9 and fusion device end 3
Perforative bone grafting chamber 6 above and below upper formation is evenly arranged with multiple anti-skidding convex bodys in the upper and lower surface of fusion device main body 1；At least two
The tip of a screw 2 is tilted from the upper and lower surface of fusion device end 3 respectively to be stretched out.
Wherein, anti-skidding convex body is pyramid.
The fusion device main body 1 of " kidney shape " structure is due to that can increase bone grafting chamber 6 compared to shuttle shape structure for arcuate structure
Volume, increase fusion device main body 1 upper and lower surface product, improve Post lumbar surgery intervertebral fusion rate.Between fusion device main body 1 and centrum
Fixation is more stable, reduces the risk that postoperative Invasive lumbar fusion device falls off.
It is provided on fusion device end 3 auxiliary mounting groove 4 (specially cylindrical structure), it, will be auxiliary in fusion device surgical procedure
Auxiliary mounting groove 4 is inserted into auxiliary positioning installation tool one end of cylindrical structure, clamps auxiliary positioning peace by other clamping devices
Holding tool need to merge the safe and accurate feeding of fusion device 1 between centrum, it is ensured that position placement is good during surgery for fusion device 1.
Such as Fig. 6 and Fig. 7, (the embodiment 1 of Anti-off bolt 10 for preventing screw 2 from falling off is additionally provided on fusion device end 3
Also have disconnecting prevention structure, do not drawn in attached drawing), Anti-off bolt 10 is horizontally installed in stepped hole, and end is provided with backing pin 12, is prevented
It is provided with spring 11 in de- 10 main body of bolt, 10 head of Anti-off bolt is contacted with the nut of screw 2.When tightening and be accurately implanted into spiral shell
After nail 2, under the action of spring 11, the nut that screw 2 is blocked on the head of Anti-off bolt 10 prevents screw 2 from falling off.Mounting screw 2
When, pressing Anti-off bolt 10 can be retracted in stepped hole.
Although specific embodiments of the present invention are described in conjunction with attached drawing above, the invention is not limited to upper
The specific embodiment stated, above-mentioned specific embodiment are only schematical, directiveness rather than restrictive.This
The those of ordinary skill in field under the enlightenment of this specification, in the feelings for not departing from scope of the claimed protection of the invention
Under condition, a variety of forms can also be made, these belong to the column of protection of the invention.
Claims (10)
1. a kind of lumbar vertebral posterior interbody cage systems, which is characterized in that including fusion device main body (1) and screw (2)；Described melts
Clutch main body (1) includes the fusion device front end (9) and fusion device end (3) of petition warhead structure, fusion device front end (9) and fusion
Perforative bone grafting chamber (6) up and down, the upper and lower surface of fusion device main body (1) are formed in fusion device main body (1) between device end (3)
On be evenly arranged with multiple anti-skidding convex bodys；Incline respectively from the upper and lower surface of fusion device end (3) tip of at least two screws (2)
Tiltedly stretch out.
2. lumbar vertebral posterior interbody cage systems according to claim 1, which is characterized in that the fusion device main body (1)
It is in the integral structure body of shuttle shape for appearance.
3. lumbar vertebral posterior interbody cage systems according to claim 2, which is characterized in that the anti-skidding convex body is hangnail
(8), the tip of hangnail (8) is tilted to fusion device end (3).
4. lumbar vertebral posterior interbody cage systems according to claim 1, which is characterized in that the fusion device main body (1)
For the arc-shaped integral structure body of appearance；The anti-skidding convex body is pyramid.
5. lumbar vertebral posterior interbody cage systems according to claim 1, which is characterized in that set in the bone grafting chamber (6)
It is equipped with the baffle (7) for bone grafting chamber (6) to be divided into multiple spaces.
6. lumbar vertebral posterior interbody cage systems according to claim 1, which is characterized in that the fusion device main body (1)
Side wall on be provided with the viewing hole (5) being connected to bone grafting chamber (6).
7. lumbar vertebral posterior interbody cage systems according to claim 1, which is characterized in that the fusion device end (3)
On be additionally provided with auxiliary mounting groove (4).
8. lumbar vertebral posterior interbody cage systems according to claim 1, which is characterized in that the fusion device end (3)
On be additionally provided with Anti-off bolt (10) for preventing screw (2) from falling off, Anti-off bolt (10) is arranged in stepped hole, anticreep spiral shell
Spring (11) are provided in bolt (10) main body；Under spring (11) effect, Anti-off bolt (10) can block screw (2).
9. lumbar vertebral posterior interbody cage systems according to claim 1, which is characterized in that the nut of the screw (2)
It is embedded in fusion device end (3), and nut is external without departing from fusion device end (3).
10. lumbar vertebral posterior interbody cage systems according to claim 1, which is characterized in that the fusion device main body (1)
It is made of polyetheretherketonematerials materials or titanium alloy material；Screw (2) is swell fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244566.1A CN109806034A (en) | 2019-03-28 | 2019-03-28 | Lumbar vertebral posterior interbody cage systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910244566.1A CN109806034A (en) | 2019-03-28 | 2019-03-28 | Lumbar vertebral posterior interbody cage systems |
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| Publication Number | Publication Date |
|---|---|
| CN109806034A true CN109806034A (en) | 2019-05-28 |
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ID=66610847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910244566.1A Pending CN109806034A (en) | 2019-03-28 | 2019-03-28 | Lumbar vertebral posterior interbody cage systems |
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| CN (1) | CN109806034A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141406A (en) * | 2019-06-21 | 2019-08-20 | 上海长征医院 | Thoracolumbar disk implantation piece and Thoracolumbar disk artificial vertebral body |
| CN110384572A (en) * | 2019-07-16 | 2019-10-29 | 天津市天津医院 | CAD personalization lumbar intervertebral fusion device and its designing and manufacturing method |
| CN111358600A (en) * | 2020-03-20 | 2020-07-03 | 青岛大学附属医院 | Self-locking intervertebral fusion device system under spinal endoscope |
-
2019
- 2019-03-28 CN CN201910244566.1A patent/CN109806034A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110141406A (en) * | 2019-06-21 | 2019-08-20 | 上海长征医院 | Thoracolumbar disk implantation piece and Thoracolumbar disk artificial vertebral body |
| CN110384572A (en) * | 2019-07-16 | 2019-10-29 | 天津市天津医院 | CAD personalization lumbar intervertebral fusion device and its designing and manufacturing method |
| CN111358600A (en) * | 2020-03-20 | 2020-07-03 | 青岛大学附属医院 | Self-locking intervertebral fusion device system under spinal endoscope |
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