CN209611271U - A kind of vertebral column internal fixation nail stick device - Google Patents
A kind of vertebral column internal fixation nail stick device Download PDFInfo
- Publication number
- CN209611271U CN209611271U CN201920022326.2U CN201920022326U CN209611271U CN 209611271 U CN209611271 U CN 209611271U CN 201920022326 U CN201920022326 U CN 201920022326U CN 209611271 U CN209611271 U CN 209611271U
- Authority
- CN
- China
- Prior art keywords
- pedicle screw
- pitman
- nail stick
- rotation
- internal fixation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003292 glue Substances 0.000 claims abstract description 21
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000000875 Spinal Curvatures Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses a kind of vertebral column internal fixation nail stick devices, including pedicle screw, the pedicle screw is in U-shape, pitman is equipped in the pedicle screw, the top and bottom of the pitman offer thread groove, the thread groove internal screw thread is connected with link block, the side of the pitman is opened up there are two placing groove, the other side of the pitman is opened up there are two rotation hole, the rotation hole is connected to corresponding placing groove, the same fixing glue is rotatably equipped in the rotation hole and corresponding placing groove, rotation slot there are two being opened up at the top of the pedicle screw, rotating block is rotatably equipped in two rotation slots, the top of the rotating block extends to outside pedicle screw and is welded with rotating bar, the same slider is arranged in two rotating bars.The utility model can preferably fix nail stick, and the nail stick that can adapt to different size is fixed, and structure is simple, easy to use.
Description
Technical field
The utility model relates to orthopedic medical device technical field more particularly to a kind of vertebral column internal fixation nail stick devices.
Background technique
It is solid using spine nail stick in the bone surgery for diseases such as spinal curvature, dislocation, fracture on clinical medicine at present
Determine system, i.e. internal fixation of spine pedicle of vertebral arch screw peg is resetted and fixed.The spinal internal fixation system of the prior art includes
Pedicle screw, hold-down bars, pitman, nail pressing etc..Pedicle nail in existing spinal fixation system is after-opening, rear band
Hold-down bars is accommodated in the U-type groove of screw thread, is linked together pedicle nail and spinal column fixing rod by bolt, further through lateral connection
The pedicle nail of two sides is linked together by device with spinal column fixing rod, realizes being fixedly secured for backbone, current spinal fixation system
It is easy to loosen and be broken there are pedicle nail, and this spinal fixation system follows closely stick after prolonged use and is easy to appear loosening
Problem, therefore, it is proposed that a kind of vertebral column internal fixation nail stick device solves the above problems.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of internal fixation of spine proposed
Follow closely bar device.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of vertebral column internal fixation nail stick device, including pedicle screw, the pedicle screw are in U-shape, the pedicle of vertebral arch
Pitman is equipped in screw, the top and bottom of the pitman offer thread groove, and the thread groove internal screw thread is connected with
Link block, the side of the pitman are opened up there are two placing groove, and the other side of the pitman opens up that there are two rotation hole, institutes
It states rotation hole to be connected to corresponding placing groove, is rotatably equipped with the same fixing glue in the rotation hole and corresponding placing groove,
It is opened up at the top of the pedicle screw there are two rotation slot, is rotatably equipped with rotating block, the rotating block in two rotation slots
To extend to pedicle screw outer and be welded with rotating bar on top, the same slider, the cunning are arranged in two rotating bars
The lower section of movable plate, which is equipped with, compresses piece, and the bottom for compressing piece is arc-shaped, and compression piece and pedicle screw match.
Preferably, the link block is equipped with active section, is equipped with the first external screw thread at the top and bottom of link block, and first
External screw thread and corresponding thread groove are threadedly coupled.
Preferably, the head of a nail of the fixing glue and corresponding placing groove are adapted, and the side of fixing glue extends to pitman
Outside.
Preferably, first annular slot is offered on the inner wall of the rotation hole, fixing sleeve is equipped with first annular in fixing glue
Block, first annular piece is adapted with corresponding first annular slot.
Preferably, the rotating bar is equipped with the second external screw thread, opens up that there are two threaded hole, two threaded holes on slider
It is threadedly coupled with the second external screw thread in corresponding two rotating bars.
Preferably, the second annular groove is offered in the bottom interior wall of the rotation slot, fixing sleeve is equipped with second on rotating block
Ring block, the second ring block and corresponding second annular groove are adapted.
Compared with prior art, the utility model has the beneficial effects that
By rotation hole, fixing glue, first annular slot, first annular piece, rotation slot, rotating block, rotating bar, slider,
Nail stick can be fixed in threaded hole and the cooperation for compressing piece, can be carried out to nail stick by the cooperation of fixing glue tentatively solid
Fixed, by the rotation of two rotating bars, rotating bar drives rotating block to rotate in rotation slot, passes through the second ring block and the second ring
The cooperation of shape slot guarantees rotating bar rotation not deviation, and two rotating bars rotate in corresponding two threaded holes drives slider sliding
Dynamic, slider, which drives, compresses piece movement, and the U-shaped face of the arcwall face and pedicle screw that compress piece matches, to realize to nail
Stick is fastened, and the U-shaped face for the arcwall face and pedicle screw for compressing piece can preferably adapt to the nail stick of different size into
Row is fixed；
The utility model can preferably fix nail stick, and the nail stick that can adapt to different size is fixed,
Structure is simple, easy to use.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of vertebral column internal fixation nail stick device structural schematic diagram；
Fig. 2 be the utility model proposes a kind of vertebral column internal fixation nail stick device pedicle screw plan structure signal
Figure；
Fig. 3 be the utility model proposes a kind of vertebral column internal fixation nail stick device part A structural schematic diagram.
In figure: 1 pedicle screw, 2 pitmans, 3 link blocks, 4 thread grooves, 5 placing grooves, 6 rotation holes, 7 fixing glues, 8
One annular groove, 9 first annular pieces, 10 rotation slots, 11 rotating blocks, 12 rotating bars, 13 sliders, 14 threaded holes, 15 compression pieces.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, a kind of vertebral column internal fixation nail stick device, including pedicle screw 1, pedicle screw 1 are in U-shape, vertebra
Pitman 2 is equipped in pedicle screw 1, the top and bottom of pitman 2 offer thread groove 4, and 4 internal screw thread of thread groove is connected with
Link block 3, the side of pitman 2 are opened up there are two placing groove 5, and the other side of pitman 2 is opened up there are two rotation hole 6, are rotated
Hole 6 is connected to corresponding placing groove 5, and the same fixing glue 7, pedicle of vertebral arch are rotatably equipped in rotation hole 6 and corresponding placing groove 5
The top of screw 1 is opened up there are two rotation slot 10, is rotatably equipped with rotating block 11, the top of rotating block 11 in two rotation slots 10
It extends to outside pedicle screw 1 and is welded with rotating bar 12, the same slider 13, slider are arranged in two rotating bars 12
13 lower section, which is equipped with, compresses piece 15, and the bottom for compressing piece 15 is arc-shaped, and compression piece 15 and pedicle screw 1 match, and pass through
Rotation hole 6, fixing glue 7, first annular slot 8, first annular piece 9, rotation slot 10, rotating block 11, rotating bar 12, slider 13,
Nail stick can be fixed in threaded hole 14 and the cooperation for compressing piece 15, can be carried out just to nail stick by the cooperation of fixing glue 7
Step is fixed, and by the rotation of two rotating bars 12, rotating bar 12 drives rotating block 11 to rotate in rotation slot 10, passes through the second ring
The cooperation of shape block and the second annular groove guarantees the rotation of rotating bar 12 not deviation, and two rotating bars 12 are in corresponding two threaded holes 14
Interior rotation drives slider 13 to slide, and slider 13, which drives, compresses the movement of piece 15, compresses the arcwall face and pedicle screw 1 of piece 15
U-shaped face match, thus realize to nail stick fasten, and compress piece 15 arcwall face and pedicle screw 1 U-shaped face energy
Enough nail sticks for preferably adapting to different size are fixed, and the utility model can preferably fix nail stick, and can
The nail stick for adapting to different size is fixed, and structure is simple, easy to use.
In the utility model, link block 3 is equipped with active section, and the top and bottom of link block 3 are equipped with the first external screw thread,
First external screw thread and corresponding thread groove 4 are threadedly coupled, and the head of a nail of fixing glue 7 and corresponding placing groove 5 are adapted, fixing glue 7
Side extend to the outside of pitman 2, first annular slot 8 is offered on the inner wall of rotation hole 6, fixation is arranged in fixing glue 7
There is first annular piece 9, first annular piece 9 and corresponding first annular slot 8 is adapted, rotating bar 12 is equipped with the second external screw thread,
It is opened up on slider 13 there are two threaded hole 14, the second external screw thread spiral shell on two threaded holes 14 and corresponding two rotating bars 12
Line connects, and offers the second annular groove in the bottom interior wall of rotation slot 10, and fixing sleeve is equipped with the second ring block on rotating block 11, the
Second ring block and corresponding second annular groove are adapted, by rotation hole 6, fixing glue 7, first annular slot 8, first annular piece 9,
The cooperation of rotation slot 10, rotating block 11, rotating bar 12, slider 13, threaded hole 14 and compression piece 15 can consolidate nail stick
It is fixed, nail stick can be carried out tentatively to fix by the cooperation of fixing glue 7, pass through the rotation of two rotating bars 12,12 band of rotating bar
Turn motion block 11 rotates in rotation slot 10, guarantees the rotation of rotating bar 12 not by the cooperation of the second ring block and the second annular groove
Deviation, two rotating bars 12 rotate in corresponding two threaded holes 14 drives slider 13 to slide, and slider 13, which drives, to be compressed
Piece 15 is mobile, and the U-shaped face of the arcwall face and pedicle screw 1 that compress piece 15 matches, and fastens to realize to nail stick, and
The nail stick that the U-shaped face of the arcwall face and pedicle screw 1 that compress piece 15 can preferably adapt to different size is fixed, this reality
Nail stick can preferably be fixed with novel, and the nail stick that can adapt to different size is fixed, structure is simple, uses
It is convenient.
Working principle: when in use, nail stick can be carried out tentatively to fix by the cooperation of fixing glue 7, pass through two and turn
The rotation of lever 12, rotating bar 12 drive rotating block 11 to rotate in rotation slot 10, pass through the second ring block and the second annular groove
Cooperation guarantee that the rotation of rotating bar 12 not deviation, two rotating bars 12 rotates drive slider in corresponding two threaded holes 14
13 slidings, slider 13, which drives, compresses the movement of piece 15, and the U-shaped face of the arcwall face and pedicle screw 1 that compress piece 15 matches, from
And the U-shaped face for the arcwall face and pedicle screw 1 realized and fastened to nail stick, and compress piece 15 can preferably adapt to difference
The nail stick of specification is fixed.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of vertebral column internal fixation nail stick device, including pedicle screw (1), which is characterized in that the pedicle screw (1) is in
U-shaped, the pedicle screw (1) is interior to be equipped with pitman (2), and the top and bottom of the pitman (2) offer thread groove
(4), thread groove (4) internal screw thread is connected with link block (3), and the side of the pitman (2) is opened up there are two placing groove
(5), the other side of the pitman (2) is opened up there are two rotation hole (6), and the rotation hole (6) and corresponding placing groove (5) connect
It is logical, the same fixing glue (7), the pedicle screw are rotatably equipped in the rotation hole (6) and corresponding placing groove (5)
(1) it is opened up at the top of there are two rotation slot (10), two rotation slots (10) are interior to be rotatably equipped with rotating block (11), the rotating block
(11) top extends to pedicle screw (1) outside and is welded with rotating bar (12), is arranged on two rotating bars (12) same
A slider (13), the lower section of the slider (13), which is equipped with, compresses piece (15), and the bottom for compressing piece (15) is arc-shaped, and
It compresses piece (15) and pedicle screw (1) matches.
2. a kind of vertebral column internal fixation nail stick device according to claim 1, which is characterized in that set on the link block (3)
There is active section, the first external screw thread, the first external screw thread and corresponding thread groove (4) spiral shell are equipped at the top and bottom of link block (3)
Line connection.
3. a kind of vertebral column internal fixation nail stick device according to claim 1, which is characterized in that the nail of the fixing glue (7)
Cap and corresponding placing groove (5) are adapted, and the side of fixing glue (7) extends to the outside of pitman (2).
4. a kind of vertebral column internal fixation nail stick device according to claim 1, which is characterized in that the rotation hole (6) it is interior
It is offered on wall first annular slot (8), fixing sleeve is first annular piece (9) and right equipped with first annular piece (9) in fixing glue (7)
The first annular slot (8) answered is adapted.
5. a kind of vertebral column internal fixation nail stick device according to claim 1, which is characterized in that set on the rotating bar (12)
There is the second external screw thread, opened up on slider (13) there are two threaded hole (14), two threaded holes (14) and corresponding two rotate
The second external screw thread on bar (12) is threadedly coupled.
6. a kind of vertebral column internal fixation nail stick device according to claim 1, which is characterized in that the bottom of the rotation slot (10)
The second annular groove is offered on portion's inner wall, fixing sleeve is equipped with the second ring block, the second ring block and corresponding on rotating block (11)
Second annular groove is adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920022326.2U CN209611271U (en) | 2019-01-08 | 2019-01-08 | A kind of vertebral column internal fixation nail stick device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920022326.2U CN209611271U (en) | 2019-01-08 | 2019-01-08 | A kind of vertebral column internal fixation nail stick device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209611271U true CN209611271U (en) | 2019-11-12 |
Family
ID=68448960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920022326.2U Expired - Fee Related CN209611271U (en) | 2019-01-08 | 2019-01-08 | A kind of vertebral column internal fixation nail stick device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209611271U (en) |
-
2019
- 2019-01-08 CN CN201920022326.2U patent/CN209611271U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191112 |