CN109700577A - Fusion device - Google Patents
Fusion device Download PDFInfo
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- CN109700577A CN109700577A CN201910049381.5A CN201910049381A CN109700577A CN 109700577 A CN109700577 A CN 109700577A CN 201910049381 A CN201910049381 A CN 201910049381A CN 109700577 A CN109700577 A CN 109700577A
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- fusion device
- locking plate
- detent slot
- lock hole
- fixing end
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Abstract
The present invention relates to medical instruments fields, disclose a kind of fusion device.The fusion device includes: fusion device ontology, fusion device ontology includes insertion end and is relatively fixed end with insertion end, at least two first lock holes of fixing end are formed through in fixing end, the region of fixing end being located between two the first lock holes is formed with the second lock hole；Locking nail in each first lock hole；And the locking plate in the second lock hole.Wherein, locking plate has initial position and latched position, and locking plate can be rotated to latched position from initial position, not blocked mutually between initial position, locking plate and each locking nail, and at latched position, locking plate can block simultaneously and compress two locking nails.Fusion device stationarity of the invention is more preferable, amalgamation more preferably, to effectively improve postoperative effect.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of fusion device.
Background technique
Fusion device is the surgical implant for carrying out internal fixation of spine.It can be with Via Posterior Spinal Approach stick, connecting plate and backbone
Preceding road plate etc. is applied in combination, and is mainly used for backbone disc herniation or regression, neck, thoracolumbar vertebrae pseudarthrosis, and narrowing of intervertebral space is answered
The undesirable degenerated spine in position slips or Isthmic defect slips, tumor of spine, vertebral fracture, post-traumatic kyphosis deformity regression etc.
Cervical vertebra, thoracic vertebrae, lumbar vertebrae, the centrum of sacrum cone, intervertebral fusion and use when overhauling.
However, existing fusion device is mainly made of peek resin (polyether-ether-ketone) material, the material is compared to metal material
Expect that development effect is poor, is led although increasing the titanium alloy member for being easy to develop in fusion device since titanium alloy member is smaller
It causes the development capability of fusion device still poor, will cause that location of operation is ineffective in this way, increase the difficulty of operation.In addition, by
It is mainly made of peek resin material in existing fusion device, in-between position design inner cavity carries out bone grafting, the peek material at this
Material can not be merged with sclerotin, then just affect fusion efficiencies, finally make surgical effect undesirable.In addition, existing melt
Clutch causes its stationarity bad since syncretizing effect is bad, therefore fusion device operation mostly uses preceding road bone plate auxiliary operation, with
The risk of activity and the abjection of post-operative fusion device is prevented, however such way will increase the normal physiology in the preceding road of patient spine and cut
Mark causes postoperative patient activity difficult, and surgical effect is bad.
In view of the deficiencies of the prior art mentioned above, those skilled in the art is highly desirable seeks a kind of stationarity more
Good, amalgamation more preferably fusion device, so that postoperative effect is more preferably.
Summary of the invention
In order to improve postoperative effect, the invention proposes a kind of stationarity more preferably, amalgamation more preferably fusion device.
Fusion device according to the present invention, comprising: fusion device ontology, fusion device ontology include insertion end and opposite with insertion end
Fixing end, at least two first lock holes of fixing end are formed through in fixing end, fixing end is located at two first locks
Determine the region between hole and is formed with the second lock hole；Locking nail in each first lock hole；And it is located at the second lock hole
Interior locking plate.Wherein, locking plate has initial position and latched position, and locking plate can be rotated from initial position to latched position,
Initial position is not blocked mutually between locking plate and each locking nail, and at latched position, locking plate can block simultaneously and compress two
A locking nail.
Further, locking plate includes tabletting portion and is connected with tabletting portion and is used to screw with what the second lock hole was rotatably assorted
Portion.
Further, tabletting portion is formed with boss towards fixing end on one side, and the second lock hole is located at two first locks
Determine the middle position in the region between hole, the region of the top positioned at the second lock hole of fixing end is formed with the first card of indent
Position slot, the side counterclockwise of the first detent slot is formed with the first lead-in groove, rotates from initial position to the mistake of latched position in locking plate
Cheng Zhong, boss can be rotated along the first lead-in groove into the first detent slot.
Further, the first lead-in groove includes the first guide surface positioned at its bottom, and the height of the first guide surface is along up time
Needle direction gradually increases, so that the opening face of the end face of one end close to the first detent slot of the first guide surface and the first detent slot
Concordantly.
Further, the region of the lower section positioned at the second lock hole of fixing end is also formed with the second detent slot of indent,
The side counterclockwise of second detent slot is formed with the second lead-in groove, during locking plate is rotated from initial position to latched position,
Boss can be rotated along the second lead-in groove into the second detent slot.
Further, the second lead-in groove includes the second guide surface positioned at its bottom, and the height of the second guide surface is along up time
Needle direction gradually increases, so that the opening face of the end face of one end close to the second detent slot of the second guide surface and the second detent slot
Concordantly.
Further, tabletting portion includes in initial position for avoiding the first evacuation gap of the first detent slot, being used for
Avoid the second evacuation gap of the second detent slot, and the third evacuation gap and for avoiding two the first lock holes respectively
Four evacuation gap.
Further, fusion device is made of titanium alloy material, and the outer surface of fusion device ontology is formed with microcellular structure.
Further, fusion device ontology further includes the upper and lower surfaces for being separately connected insertion end and fixing end, upper table
Through there is bone grafting hole between face and lower surface, first lock hole in two the first lock holes tilted towards upper surface and with
Bone grafting hole is connected to, another first lock hole in two the first lock holes is tilted towards lower surface and is connected to bone grafting hole, the
Mating spherical surfaces between one lock hole and corresponding locking nail.
Further, abutment is also formed in fixing end, abutment includes perpendicular to upper surface and upwardly extending
The first abutting part and perpendicular to lower surface and the second abutting part for extending downwardly, two the first lock holes are located in fixing end
Region between first abutting part and the second abutting part.
Compared with prior art, fusion device of the invention has the advantage that
1) there is fusion device of the invention unique locking nail to fix and locking plate fixed structure, and fusion device can be made to stablize
Be fixed between adjacent centrum, it may not be necessary to borrow being auxiliarily fixed for preceding road bone plate, therefore can effectively exclude by bone plate
The generation for the phenomenon that caused incisura is got higher, to help to restore the physiological activity of postoperative backbone；
2) fusion device of the invention all uses titanium alloy material to make, and development effect is splendid, make surgical procedure it is more flexible,
It is convenient；
3) outer surface of the fusion device ontology of fusion device of the invention is formed with microcellular structure, and the bone for being similar to human body is small
Girder construction makes bone fusion grow into significant effect raising, so that it is splendid to have achieved the effect that surgical effect.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural schematic diagram of fusion device according to the present invention；
Fig. 2 is the structural schematic diagram of fusion device shown in FIG. 1 in the initial state；
Fig. 3 is the structural schematic diagram of fusion device shown in FIG. 1 in the locked state；
Fig. 4 is the main view of the structure of locking plate shown in FIG. 1；
Fig. 5 is the side view of the structure of locking plate shown in Fig. 4；
Fig. 6 is the perspective view of the structure of fusion device ontology shown in FIG. 1；
Fig. 7 is the main view of the structure of fusion device ontology shown in fig. 6.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
Fig. 1-3 shows the structure of fusion device 100 according to the present invention.As shown in Figure 1, the fusion device 100 includes: fusion
Device ontology 1, fusion device ontology 1 include insertion end 11 and are relatively fixed end 12 with insertion end 11, be formed with and pass through in fixing end 12
At least two first lock holes 13 of fixed end 12 are fastened, the region of fixing end 12 being located between two the first lock holes 13 is formed
There is the second lock hole 14 (as shown in Figure 6)；Locking nail 2 in each first lock hole 13；And it is located at the second lock hole 14
Interior locking plate 3.Wherein, locking plate 3 has initial position and latched position, and locking plate 3 can be rotated from initial position to latched position,
As shown in Fig. 2, do not blocked mutually between locking plate 3 and each locking nail 2 in initial position, and as shown in figure 3, at latched position,
Locking plate 3 can block simultaneously and compress two locking nails 2.
Insertion end 11 when in use, is inserted between two adjacent centrums, then by fusion device 100 of the invention first
It is fixed on corresponding centrum after locking nail 2 is each passed through corresponding first lock hole 13, can realize fusion device ontology 1 at this time
With the preliminary fixation of centrum；Then locking plate 3 is mounted in the second lock hole 14, makes locking plate 3 from initial position as shown in Figure 2
Two locking nails 2 being blocked and being compressed to rotation due to locking plate 3 while at latched position to latched position as shown in Figure 3, because
Locking plate 3 can further fix two locking nails 2 at this time for this, so as to effectively prevent locking nail 2 from fusion device ontology 1 and centrum
Abjection, and then effectively improve the fixed effect of fusion device 100 Yu centrum.Simultaneously as fusion device 100 can be more stably
It is fixed in centrum, therefore is conducive to merging for subsequent fusion device 100 and bone, this just further increases the plant of fusion device 100
Stability after entering, to improve postoperative effect.It is carried out just further, since fusion device 100 of the invention uses locking nail 2
Step is fixed, and is used locking plate 3 simultaneously and be further fixed to locking nail 2, therefore can realize more preferably fixed effect,
For fusion device in compared with the prior art, fusion device 100 of the invention is without additional preceding road plate, way of escape stick and company
Excellent fixed effect can be realized in being auxiliarily fixed for fishplate bar, therefore also greatly saves while effectively shortening operating time
Operation cost.
According to the present invention, in conjunction with shown in Fig. 3-5, locking plate 3 may include tabletting portion 31 and be connected with tabletting portion 31 and for
What the second lock hole 14 was rotatably assorted screws portion 32.Preferably, screwing is to be threadedly engaged between portion 32 and the second lock hole 14, with
Realization screws rotation function of the portion 32 relative to the second lock hole 14, the rotation with the portion of screwing 32 relative to the second lock hole 14
Turn, screw the inside that the second lock hole 14 is gradually goed deep into portion 32, the portion of tabletting at this time 31 moves closer to two the first locking nails 2 and most
Blocking and compressing to two the first locking nails 2 is realized eventually.
Further, in conjunction with shown in Fig. 3-7, tabletting portion 31 is formed with boss 33 towards fixing end 12 on one side, and second
Lock hole 14 is located at the middle position in the region between two the first lock holes 13, and fixing end 12 is located at the second lock hole 14
The region of top is formed with the first detent slot 15 of indent, and the side counterclockwise of the first detent slot 15 is formed with the first lead-in groove 16,
During locking plate 3 is rotated from initial position to latched position, boss 33 can be rotated along the first lead-in groove 16 to the first card
In the slot 15 of position.Pass through the setting, during locking plate 3 is gradually screwable into the second lock hole 14 clockwise, 31 band of tabletting portion
Dynamic boss 33 moves closer to fixing end 12, when the rotation of locking plate 3 to boss 33 is abutted to the first lead-in groove 16 far from the first detent
When one end of slot 15, boss 33 is abutted with the bottom wall of the first lead-in groove 16, continues to rotate clockwise with locking plate 3, boss 33
Bottom wall along the first lead-in groove 16 is moved towards the first detent slot 15, until after boss 33 is caught in the first detent slot 15,3 quilt of locking plate
Positioning, i.e., locking plate 3 can not rotate again relative to fusion device ontology 1, including rotation clockwise or counterclockwise.This
When, tabletting portion 31 blocks simultaneously and compresses two the first locking nails 2.
Preferably, as shown in fig. 7, the first lead-in groove 16 includes the first guide surface positioned at its bottom, the first guide surface
Height gradually increases along clockwise direction, so that the end face of one end close to the first detent slot 15 of the first guide surface and the first card
The opening face of position slot 15 is concordant.The setting of first guide surface so that boss 33 during being rotated clockwise along its surface,
Boss 33 is gradually pressed between the first guide surface and tabletting portion 31, when boss 33 moves to close the first of the first guide surface
When the end face of one end of detent slot 15, since the end face is concordant with the opening face of the first detent slot 15, boss 33 can continue
Fall into the first detent slot 15, the boss 33 fallen into the first detent slot 15 since pressing force suffered in advance suddenly disappears, because
This can be limited at completely in the first detent slot 15, even if thus continue clockwise or counterclockwise locking plate 3 can not make it is convex
Platform 33 deviates from the first detent slot 15, and then realizes locking plate 3 and two the first locking nails 2 are further secured to fusion device ontology 1
On fixed function.
It is further preferred that in embodiment as shown in Figure 6 and Figure 7, fixing end 12 is located at the second lock hole 14
The region of lower section is also formed with the second detent slot 17 of indent, and the side counterclockwise of the second detent slot 17 is formed with the second lead-in groove
18, during locking plate is rotated from initial position to latched position, boss 33 can be rotated along the second lead-in groove 18 to second
In detent slot 17.By the way that the second detent slot 17 and the second lead-in groove 18 is arranged, so that boss 33 is in arbitrary initial rotation
Position can enter in the second detent slot 17 along the second lead-in groove 18, or enter the first detent slot 15 along the first lead-in groove 16
In, it is connected and fixed so as to can be realized locking plate 3 in arbitrary rotation position with fusion device ontology 1.
Preferably, the second lead-in groove 17 may include the second guide surface positioned at its bottom, and the height of the second guide surface is along suitable
Clockwise gradually increases, so that the end face of one end close to the second detent slot 17 of the second guide surface and the second detent slot 17
Opening face is concordant.The set-up mode and working principle of second lead-in groove 18 and the second detent slot 17 can be with above-mentioned first lead-in grooves
16 is identical with working principle with the set-up mode of the first detent slot 15, and which is not described herein again.
According to the present invention, in conjunction with shown in Fig. 2 and Fig. 4, tabletting portion 31 may include in initial position for avoiding the first card
First evacuation gap 312 of position slot 15, the second evacuation gap 311 for avoiding the second detent slot 17, and for keeping away respectively
The third of two the first lock holes 13 is allowed to avoid gap 313 and the 4th evacuation gap 314.By the setting, so that tabletting portion 31
The plates of tool as shown in Figure 4 there are four blade are formd, by the way that the size or shape of each gap is arranged, four blades can be made
Shape it is different, such as the identical two big blades in the upper left corner and the lower right corner as shown in Figure 4 can be respectively formed as, and
Identical two vanelets in the lower left corner and the upper right corner.Preferably, boss 33 may be provided on one in two vanelets, so that
It obtains under the lock state of locking plate 3, two big blade can block simultaneously and compress two locking nails 2.
According to the present invention, fusion device 100 can be made of titanium alloy material, and the outer surface of fusion device ontology 100 can be formed
There is microcellular structure.The microcellular structure is formed as honeycomb, can be by being formed by titanium alloy powder 3D printing.The microcellular structure
Similar to the trabecular bone structure of human body, therefore be conducive to merging for fusion device 100 and the bone of human body, melt to further improve
The fixed stability of clutch 100.Further, since fusion device 100 is whole can be made of titanium alloy, therefore its development effect is more
It is good, consequently facilitating more flexible, convenient and fast operation in operator's art.Preferably, the locking nail 2 of fusion device 100 and locking plate 3 can be by
Titanium alloy TC 4 material is made.
According to the present invention, as shown in Figure 1, fusion device ontology 1, which may also include, is separately connected insertion end 11 and fixing end 12
Upper surface 111 and lower surface 112, running through between upper surface 111 and lower surface 112 has bone grafting hole 19, two the first lock holes 13
In first lock hole towards upper surface 111 tilt and be connected to bone grafting hole 19, it is another in two the first lock holes 13
A first lock hole is tilted towards lower surface 112 and is connected to bone grafting hole 19, between the first lock hole 13 and corresponding locking nail 2
Mating spherical surfaces.By the setting, so that slewing area of the locking nail 2 in corresponding first lock hole 13 is bigger, thus a side
Face can adjust the fixation position of locking nail 2 and vertebra to improve the fixed effect of fusion device 100, on the other hand also make same fusion
Device 100 is applicable to different patients.
In addition, according to the present invention, as shown in Figure 1, may also be formed with abutment in fixing end 12, which can be wrapped
It includes perpendicular to upper surface 111 and the first abutting part 41 upwardly extended and perpendicular to lower surface 112 and what is extended downwardly second support
Socket part 42, two the first lock holes 13 are located at the region between the first abutting part 41 and the second abutting part 42 in fixing end 12.
First abutting part 41 is abutted with the side wall of adjacent vertebra respectively when in use with the second abutting part 42, to facilitate into one
Step improves fusion device 100 and is fixed on the stability between adjacent vertebrae, while also functioning to the limit of the insertion depth to fusion device 100
Position effect.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In the description of the present application, it is to be understood that the orientation or position of the instructions such as term " clockwise ", " counterclockwise "
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitation of the present invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.Especially, as long as there is no knots
Structure conflict, items technical characteristic mentioned in the various embodiments can be combined in any way.The present invention does not limit to
In specific embodiment disclosed herein, but include all technical solutions falling within the scope of the claims.
Claims (10)
1. a kind of fusion device characterized by comprising
Fusion device ontology, the fusion device ontology include insertion end and are relatively fixed end with the insertion end, the fixing end
On be formed through at least two first lock holes of the fixing end, the fixing end is located at two first lock holes
Between region be formed with the second lock hole,
Locking nail in each first lock hole, and
Locking plate in second lock hole,
Wherein, the locking plate has initial position and latched position, and the locking plate can be rotated from the initial position to described
Latched position is not blocked mutually between the initial position, the locking plate and each locking nail, and in the latched position
Place, the locking plate can block simultaneously and compress two locking nails.
2. fusion device according to claim 1, which is characterized in that the locking plate include tabletting portion and with tabletting portion phase
Even and for screwing portion with what second lock hole was rotatably assorted.
3. fusion device according to claim 2, which is characterized in that the one side shape towards the fixing end in the tabletting portion
At there is boss, second lock hole is located at the middle position in the region between two first lock holes, the fixing end
The region of the top positioned at second lock hole be formed with the first detent slot of indent, the first detent slot it is counterclockwise
Side is formed with the first lead-in groove, described convex during the locking plate is rotated from the initial position to the latched position
Platform can be rotated along first lead-in groove into the first detent slot.
4. fusion device according to claim 3, which is characterized in that first lead-in groove includes positioned at the first of its bottom
The height of guide surface, first guide surface gradually increases along clockwise direction, so that first guide surface is close described
The end face of one end of the first detent slot is concordant with the opening face of the first detent slot.
5. fusion device according to claim 4, which is characterized in that the fixing end is located under second lock hole
The region of side is also formed with the second detent slot of indent, and the side counterclockwise of the second detent slot is formed with the second lead-in groove,
During the locking plate is rotated to the latched position from the initial position, the boss can be along second lead-in groove
Rotation is into the second detent slot.
6. fusion device according to claim 5, which is characterized in that second lead-in groove includes positioned at the second of its bottom
The height of guide surface, second guide surface gradually increases along clockwise direction, so that second guide surface is close described
The end face of one end of the second detent slot is concordant with the opening face of the second detent slot.
7. fusion device according to claim 6, which is characterized in that the tabletting portion is included in the initial position and is used for
Avoid the first evacuation gap of the first detent slot, the second evacuation gap for avoiding the second detent slot, Yi Jiyong
In the third evacuation gap for avoiding two the first lock holes respectively and the 4th evacuation gap.
8. fusion device according to any one of claim 1 to 7, which is characterized in that the fusion device is by titanium alloy material
It is made, and the outer surface of the fusion device ontology is formed with microcellular structure.
9. fusion device according to any one of claim 1 to 7, which is characterized in that the fusion device ontology further includes point
The upper and lower surfaces of the insertion end and the fixing end are not connected, and running through between the upper surface and the lower surface has
Bone grafting hole, first lock hole in two first lock holes tilt towards the upper surface and connect with the bone grafting hole
Logical, another first lock hole in two first lock holes tilts towards the lower surface and connects with the bone grafting hole
It is logical, mating spherical surfaces between first lock hole and corresponding locking nail.
10. fusion device according to claim 9, which is characterized in that abutment is also formed in the fixing end, it is described
Abutment includes perpendicular to the upper surface and the first abutting part upwardly extended and perpendicular to the lower surface and to downward
The second abutting part stretched, two first lock holes are located at the first abutting part and second abutting part in the fixing end
Between region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049381.5A CN109700577A (en) | 2019-01-18 | 2019-01-18 | Fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049381.5A CN109700577A (en) | 2019-01-18 | 2019-01-18 | Fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109700577A true CN109700577A (en) | 2019-05-03 |
Family
ID=66261497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910049381.5A Pending CN109700577A (en) | 2019-01-18 | 2019-01-18 | Fusion device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109700577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112618117A (en) * | 2020-12-31 | 2021-04-09 | 北京市春立正达医疗器械股份有限公司 | Zero-notch fusion device |
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| US20180153706A1 (en) * | 2014-06-03 | 2018-06-07 | Atlas Spine, Inc. | Spinal implant device with bone screws |
| US20180318100A1 (en) * | 2017-05-04 | 2018-11-08 | Neurostructures, Inc. | Interbody spacer |
| CN209884433U (en) * | 2019-01-18 | 2020-01-03 | 北京市春立正达医疗器械股份有限公司 | Fusion cage |
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| CN103932774A (en) * | 2014-04-14 | 2014-07-23 | 北京市奥斯比利克新技术开发有限公司 | Locking device for spiral groove of anterior cervical steel plate |
| US20180153706A1 (en) * | 2014-06-03 | 2018-06-07 | Atlas Spine, Inc. | Spinal implant device with bone screws |
| US9192483B1 (en) * | 2014-06-27 | 2015-11-24 | Amendia, Inc. | Spinal fusion system |
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| CN112618117A (en) * | 2020-12-31 | 2021-04-09 | 北京市春立正达医疗器械股份有限公司 | Zero-notch fusion device |
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