CN209236472U - Osteoporosis type locks spinal fusion device - Google Patents
Osteoporosis type locks spinal fusion device Download PDFInfo
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- CN209236472U CN209236472U CN201821440875.3U CN201821440875U CN209236472U CN 209236472 U CN209236472 U CN 209236472U CN 201821440875 U CN201821440875 U CN 201821440875U CN 209236472 U CN209236472 U CN 209236472U
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Abstract
The utility model discloses osteoporosis types to lock spinal fusion device, including fusion device and lock screw, one end of one end and bottom at the top of fusion device is equipped with anti-skid stud, fusion device is set far from anti-skid stud one end there are two fixation hole, the inside of fixation hole is threaded with lock screw, lock screw is by bone thread section, side bone cement hole, changeover portion and head of a nail composition, one end of the head of a nail is fixedly connected with changeover portion, one end of the separate head of a nail of changeover portion is fixedly connected with bone thread section, and the outside of bone thread section is equipped with side bone cement hole, and the inside of bone thread section is equipped with interstitial hole, interstitial hole is connected with side bone cement hole, it is novel that the utility model has the advantages of simple structure, it is practical, it is simple and quick, spinal fusion device is locked by osteoporosis type, suitable for sufferers of osteoporosis face, overcome due to patient's osteoporosis and Caused screw holding power is insufficient, the defect that fusion device displacement, screw exit.
Description
Technical field
The utility model belongs to the field of medical instrument technology, in particular to osteoporosis type locks spinal fusion device.
Background technique
Osteoporosis is one kind very common in present illness, and osteoporosis is divided into primary osteoporosis and secondary
Osteoporosis, primary osteoporosis include senile osteoporosis and women's osteosporosis after menopause, secondary osteoporosis
It is more common in osteoporosis caused by Other diseases, such as nephrosis, rheumatism, long-term bed.With the aggravation of aging of population, by
Caused by regression merge demand be stepped up, and this some patients using locking fusion device merge when, due to sclerotin dredge
Pine, the screw holding power for locking spinal fusion device is insufficient, and the risk that fusion device displacement, screw exit is larger.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides osteoporosis type locking backbone
Fusion device is suitable for sufferers of osteoporosis face, and screw holding power is insufficient caused by overcoming due to patient's osteoporosis, fusion device
The defect that displacement, screw exit.
Osteoporosis type locks spinal fusion device, including fusion device and lock screw, one end at the top of the fusion device and
One end of bottom is equipped with anti-skid stud, and the fusion device is set far from anti-skid stud one end there are two fixation hole, the fixation hole it is interior
Portion is threaded with lock screw, and the lock screw is made of bone thread section, side bone cement hole, changeover portion and the head of a nail,
One end of the head of a nail is fixedly connected with changeover portion, and one end of the separate head of a nail of the changeover portion is fixedly connected with bone thread section,
And the outside of the bone thread section is equipped with side bone cement hole, and the inside of the bone thread section is equipped with interstitial hole, the centre
Hole is connected with side bone cement hole, and the interstitial hole inner wall is equipped with connection screw thread close to one end of the head of a nail.
As a kind of preferred embodiment of the utility model, the interstitial hole diameter of bore is 1.0mm.
As a kind of preferred embodiment of the utility model, on the outside of the fusion device corresponding two sides equidistantly set there are four filling
Hole.
As a kind of preferred embodiment of the utility model, the bone thread section is cancellous threads, and the bone thread section
Major Diam be 4.0mm, screw pitch 1.7mm, diameter of thread 2.5mm.
As a kind of preferred embodiment of the utility model, side bone cement hole is through-hole, and side bone cement hole
Aperture be 1.0mm.
The utility model has the advantages that the utility model has the advantages of simple structure is novel, and it is practical, it is simple and quick, pass through osteoporosis
Type locks spinal fusion device, is suitable for sufferers of osteoporosis face, screw holding power caused by overcoming due to patient's osteoporosis
Deficiency, the defect that fusion device displacement, screw exit.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model；
The lock screw structural schematic diagram that Fig. 2 is；
The schematic diagram of internal structure for the lock screw that Fig. 3 is.
In figure: 1, fusion device；2, anti-skid stud；3, fixation hole；4, lock screw；5, hole is filled；6, bone thread section；7, side
Bone cement hole；8, changeover portion；9, the head of a nail；10, connection screw thread；11, interstitial hole.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment
As shown in Figure 1-3, osteoporosis type locks spinal fusion device, including fusion device 1 and lock screw 4, fusion device 1 is pushed up
The one end in portion and one end of bottom are equipped with anti-skid stud 2, and fusion device 1 is set far from 2 one end of anti-skid stud there are two fixation hole 3, fixed
The inside in hole 3 is threaded with lock screw 4, and lock screw 4 is by bone thread section 6, side bone cement hole 7, changeover portion 8 and nail
Cap 9 forms, and one end of the head of a nail 9 is fixedly connected with changeover portion 8, and one end of the separate head of a nail 9 of changeover portion 8 is fixedly connected with bone thread
Section 6, and the outside of bone thread section 6 is equipped with side bone cement hole 7, and the inside of bone thread section 6 is equipped with interstitial hole 11, interstitial hole 11
It is connected with side bone cement hole 7,11 inner wall of interstitial hole is equipped with connection screw thread 10 close to one end of the head of a nail 9.
11 diameter of bore of interstitial hole is 1.0mm, and convenient for injecting bone cement into lock screw 4,1 outside of fusion device is corresponding
Two sides are equidistantly set there are four hole 5 is filled, and are merged for side, and bone thread section 6 is cancellous threads, and the screw thread of bone thread section 6
Major diameter is 4.0mm, screw pitch 1.7mm, diameter of thread 2.5mm, enhances the holding power to bone, side bone cement hole 7 is logical
Hole, and the aperture in side bone cement hole 7 is 1.0mm, prevents fusion device displacement, screw from exiting.
In use, first fusion device 1 is implanted into intervertenral space, then lock screw 4 is inserted into fixation hole 3, then by solid
Determine hole 3 to connect lock screw 4, then connect Cement fixation device with interstitial hole 11 by connection screw thread 10, then in
Between inject bone cement in 11 lock screw 4 of hole, screw is held hypodynamic caused by being overcome the problems, such as with this because of osteoporosis, is prevented
The only defect that the displacement of fusion device 1, lock screw 4 exit.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. osteoporosis type locks spinal fusion device, including fusion device (1) and lock screw (4), which is characterized in that the fusion
One end of one end and bottom at the top of device (1) is equipped with anti-skid stud (2), and the fusion device (1) is equipped with far from anti-skid stud (2) one end
The inside of two fixation holes (3), the fixation hole (3) is threaded with lock screw (4), and the lock screw (4) is by bone
Thread segment (6), side bone cement hole (7), changeover portion (8) and the head of a nail (9) composition, one end of the head of a nail (9) is fixedly connected with
One end of changeover portion (8), the separate head of a nail (9) of the changeover portion (8) is fixedly connected with bone thread section (6), and the bone thread
The outside of section (6) is equipped with side bone cement hole (7), and the inside of the bone thread section (6) is equipped with interstitial hole (11), the centre
Hole (11) is connected with side bone cement hole (7), and interstitial hole (11) inner wall is equipped with connection screw thread close to one end of the head of a nail (9)
(10)。
2. osteoporosis type according to claim 1 locks spinal fusion device, which is characterized in that in the interstitial hole (11)
Bore dia is 1.0mm.
3. osteoporosis type according to claim 1 locks spinal fusion device, which is characterized in that the fusion device (1) is outside
Hole (5) are filled there are four equidistantly setting in the corresponding two sides in side.
4. osteoporosis type according to claim 1 locks spinal fusion device, which is characterized in that the bone thread section (6)
For cancellous threads, and the Major Diam of the bone thread section (6) is 4.0mm, screw pitch 1.7mm, diameter of thread 2.5mm.
5. osteoporosis type according to claim 1 locks spinal fusion device, which is characterized in that side bone cement hole
It (7) is through-hole, and the aperture in side bone cement hole (7) is 1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440875.3U CN209236472U (en) | 2018-09-04 | 2018-09-04 | Osteoporosis type locks spinal fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821440875.3U CN209236472U (en) | 2018-09-04 | 2018-09-04 | Osteoporosis type locks spinal fusion device |
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| Publication Number | Publication Date |
|---|---|
| CN209236472U true CN209236472U (en) | 2019-08-13 |
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ID=67517420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821440875.3U Active CN209236472U (en) | 2018-09-04 | 2018-09-04 | Osteoporosis type locks spinal fusion device |
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| Country | Link |
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| CN (1) | CN209236472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998915A (en) * | 2021-01-29 | 2021-06-22 | 苏州大学 | Bone loosening type locking spinal fusion cage |
-
2018
- 2018-09-04 CN CN201821440875.3U patent/CN209236472U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998915A (en) * | 2021-01-29 | 2021-06-22 | 苏州大学 | Bone loosening type locking spinal fusion cage |
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