CN206548587U - With hollow two pitch airscrew pedicle screw fixed structure - Google Patents
With hollow two pitch airscrew pedicle screw fixed structure Download PDFInfo
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- CN206548587U CN206548587U CN201620980837.1U CN201620980837U CN206548587U CN 206548587 U CN206548587 U CN 206548587U CN 201620980837 U CN201620980837 U CN 201620980837U CN 206548587 U CN206548587 U CN 206548587U
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- pedicle screw
- hollow
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- fixed structure
- screw
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Abstract
There is hollow two pitch airscrew pedicle screw fixed structure the utility model discloses one kind, including pedicle screw, horizontal connected device, regulation thick stick, and described pedicle screw is connected by adjusting rod, fixed between adjusting rod by horizontal connected device, described pedicle screw has two pitch airscrew structure for hollow and surface；The utility model provides the structure that more fixed forms are treated for Various Complex, and screw closely distal end is different pitch, equipped with hollow hole；Screw loosening, sliding are prevented, and screw pedicle can be screwed into centrum exactly, operation difficulty is reduced, improves surgical quality.
Description
Technical field
The utility model belongs to orthopaedic medical treatment field of surgical, and in particular to one kind has hollow two pitch airscrew pedicle of vertebral arch screw
Follow closely fixed structure.
Background technology
At present, pedicle screw can be used for the important means in treatments such as spinal trauma, bone lesion or malformation corrections.Vertebra
Pedicle screw is to treat the most frequently used internal fixation apparatus of backbone both at home and abroad at present, and existing pedicle screw is roughly the same, easily
There is screw loosening, sliding and cause internal fixation system bending, fracture, screw placement is inaccurate, so as to influence surgical quality or hand
Art fails.
The content of the invention
The utility model proposes to solve the problem of prior art is present, a kind of with hollow pair of spiral shell the purpose is to provide
Away from pedicle screw fixed structure.
The technical solution of the utility model is：
One kind has hollow two pitch airscrew pedicle screw fixed structure, including pedicle screw, horizontal connected device, regulation thick stick, and
Described pedicle screw is connected by adjusting rod, is fixed between adjusting rod by horizontal connected device, and described pedicle screw is hollow
And surface has two pitch airscrew structure.
Described pedicle screw near-end pitch is 1mm.
Described pedicle screw distal end pitch is 2.75mm.
Described pedicle screw is multiple.
The hollow a diameter of 1.7mm of described pedicle screw.
The material of described pedicle screw and described horizontal connected device is titanium alloy.
A diameter of 5.5mm of described regulation thick stick.
Described adjusting rod is two, is separately fixed at the two ends of horizontal connected device.
Described horizontal connected device is stretching structure.
The utility model provides the structure that more fixed forms are treated for Various Complex, and screw is closely distally
Different pitch, equipped with hollow hole；Screw loosening, sliding are prevented, and screw pedicle can be screwed into centrum exactly, is reduced
Operation difficulty, improves surgical quality.
Brief description of the drawings
Fig. 1 is the front view of the utility model pedicle screw；
Fig. 2 is the top view of the utility model pedicle screw；
Fig. 3 is the sectional view along Section A-A in Fig. 2；
Fig. 4 is the schematic diagram that the utility model adjusts thick stick；
Fig. 5 is the closure state figure of the horizontal connected device of the utility model；
Fig. 6 is the open mode figure of the horizontal connected device of the utility model；
Wherein：
The horizontal connected device of 1 pedicle screw 2
The 3 regulation near-ends of thick stick 4
5 distal ends.
Embodiment
Hereinafter, the utility model is described in detail with embodiment referring to the drawings：
As shown in Fig. 1 ~ 3, one kind has hollow two pitch airscrew pedicle screw fixed structure, including pedicle screw 1, horizontal company
Device 2, regulation thick stick 3, and described pedicle screw 1 is connected by adjusting rod 3, is fixed between adjusting rod 3 by horizontal connected device 2, it is described
Pedicle screw 1 there is two pitch airscrew structure for hollow and surface.
The described pitch of 1 near-end of pedicle screw 4 is 1mm.
Described 5 pitch of the distal end of pedicle screw 1 are 2.75mm.
Described pedicle screw 1 is multiple.
The hollow a diameter of 1.7mm of described pedicle screw 1.
The material of described pedicle screw 1 and described horizontal connected device 2 is titanium alloy.
A diameter of 5.5mm of described regulation thick stick 3.
Described adjusting rod 3 is two, is separately fixed at the two ends of horizontal connected device 2.
Described horizontal connected device 2 is stretching structure.
The pedicle screw 1 of this specific embodiment can be used in the operation such as spinal trauma, bone lesion or malformation correction
Used cooperatively with horizontal connected device 2, the regulation thick sticks 3 of φ 5.5, pedicle screw 1 is connected by adjusting thick stick 3, regulation thick stick 3 can pass through curved rod
Device carries out bending pretreatment according to backbone physiological curve, to recover backbone physiology lordosis, further corrects deformity of spine, reaches
It is good to reset.Strengthen fixation with horizontal connected device 2 again between two regulation thick sticks, make tower structure, form integrated connection, it is horizontal
Connected device 2 can be realized flexible by opening and closing, and meet the demand of different sufferers.Wherein double pitch design, in bone or
Bone with harder extra cortical region and softer spongiosa interior zone has optimal fixing intensity, at utmost decomposes spiral shell
Stress is followed closely, strengthens going out property of resistance to plucking, φ 1.7 hollow design has guide pin as guiding, screw pedicle is screwed into vertebra exactly
Body, and help to maintain the maintenance resetted during drilling, screw placement to reduce operation difficulty, it is ensured that blood supply, pressure is reduced,
Improve therapeutic effect.
The utility model provides the structure that more fixed forms are treated for Various Complex, and screw is closely distally
Different pitch, equipped with hollow hole；Screw loosening, sliding are prevented, and screw pedicle can be screwed into centrum exactly, is reduced
Operation difficulty, improves surgical quality.
Claims (9)
1. one kind has hollow two pitch airscrew pedicle screw fixed structure, including pedicle screw（1）, horizontal connected device（2）, regulation thick stick
（3）, it is characterised in that：Described pedicle screw（1）By adjusting thick stick（3）It is connected, adjusts thick stick（3）Between by horizontal connected device（2）
Fixed, described pedicle screw（1）There is two pitch airscrew structure for hollow and surface.
2. according to claim 1 have hollow two pitch airscrew pedicle screw fixed structure, it is characterised in that：Described vertebra
Pedicle screw（1）Near-end（4）Pitch is 1mm.
3. according to claim 1 have hollow two pitch airscrew pedicle screw fixed structure, it is characterised in that：Described vertebra
Pedicle screw（1）Distally（5）Pitch is 2.75mm.
4. according to claim 1 have hollow two pitch airscrew pedicle screw fixed structure, it is characterised in that：Described vertebra
Pedicle screw（1）To be multiple.
5. according to claim 1 have hollow two pitch airscrew pedicle screw fixed structure, it is characterised in that：Described vertebra
Pedicle screw（1）Hollow a diameter of 1.7mm.
6. according to claim 1 have hollow two pitch airscrew pedicle screw fixed structure, it is characterised in that：Described vertebra
Pedicle screw（1）With described horizontal connected device（2）Material be titanium alloy.
7. according to claim 1 have hollow two pitch airscrew pedicle screw fixed structure, it is characterised in that：Described tune
Save thick stick（3）A diameter of 5.5mm.
8. according to claim 1 have hollow two pitch airscrew pedicle screw fixed structure, it is characterised in that：Described tune
Save thick stick（3）For two, horizontal connected device is separately fixed at（2）Two ends.
9. according to claim 1 have hollow two pitch airscrew pedicle screw fixed structure, it is characterised in that：Described horizontal stroke
Connected device（2）For stretching structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620980837.1U CN206548587U (en) | 2016-08-30 | 2016-08-30 | With hollow two pitch airscrew pedicle screw fixed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620980837.1U CN206548587U (en) | 2016-08-30 | 2016-08-30 | With hollow two pitch airscrew pedicle screw fixed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206548587U true CN206548587U (en) | 2017-10-13 |
Family
ID=60368149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620980837.1U Active CN206548587U (en) | 2016-08-30 | 2016-08-30 | With hollow two pitch airscrew pedicle screw fixed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206548587U (en) |
-
2016
- 2016-08-30 CN CN201620980837.1U patent/CN206548587U/en active Active
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