CN203677230U - Minimally invasive hollow multi-side hole spinal pedicle screw - Google Patents
Minimally invasive hollow multi-side hole spinal pedicle screw Download PDFInfo
- Publication number
- CN203677230U CN203677230U CN201320776742.4U CN201320776742U CN203677230U CN 203677230 U CN203677230 U CN 203677230U CN 201320776742 U CN201320776742 U CN 201320776742U CN 203677230 U CN203677230 U CN 203677230U
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- China
- Prior art keywords
- screw
- head
- hole
- nail
- rivet nut
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- 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 - Lifetime
Links
- 208000014674 injury Diseases 0.000 abstract 1
- 230000008733 trauma Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 239000007943 implant Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 208000001132 Osteoporosis Diseases 0.000 description 3
- 210000000481 breast Anatomy 0.000 description 2
- 208000037816 tissue injury Diseases 0.000 description 2
- 206010010214 Compression fracture Diseases 0.000 description 1
- 206010039984 Senile osteoporosis Diseases 0.000 description 1
- 208000007103 Spondylolisthesis Diseases 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002639 bone cement Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000001613 neoplastic effect Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 108010048734 sclerotin Proteins 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses a medical surgical instrument, in particular to a minimally invasive hollow multi-side-hole spinal pedicle screw. The spinal pedicle screw comprises a screw body and a screw cap; the head part of the screw body is connected with the screw cap; a male thread is arranged on the screw body; the screw body adopts a hollow structure; a screw hole is formed in the screw body. The structure of the spinal pedicle screw is characterized in that two upper exuding holes communicated with the screw hole are formed in the one-third part of the tail part of the screw body; three lower exuding holes distributed along the circumference uniformly are formed in the tail part of the screw body, and are communicated with the screw hole; the center lines of the two upper exuding holes are perpendicular to each other; the two ends of the each upper exuding hole are communicated with the outside directly; the center lines of the two upper exuding holes can also be perpendicular to the center line of the screw hole; one end of each upper exuding hole is communicated with the outside; the other end is communicated with the screw hole. The spinal pedicle screw has the advantages of convenient and flexible operation, capacity of pouring filling materials, low tissue trauma, and high working safety performance.
Description
Technical field
This utility model relates to a kind of medical surgical instrument, the hollow many side openings pedicle screw of especially a kind of Wicresoft.
Background technology
Entered at present aged tendency of population society, osteoporosis is the ubiquitous problem of old people.Traditional Therapeutic Method is medicine analgesic, lie up etc., but therapeutic effect is all undesirable, easily further produces sclerotin decalcification loose, forms vicious cycle, causes other organs nonfunction.Operative treatment is to implant pedicle nail, is generally first with screw tap boring, then positions with Kirschner wire, then insert pedicle nail, reach the fixing object of sections, but the method is easy to injured nerve root, cause patient maimed person, and operating time is long, wastes time and energy, be not easy adjustment; Often lose for osteoporosis or the heavier patient's angle of traumatic condition simultaneously, upper and lower pedicle screw cutting vertebral body, or there is the situations such as pedicle nail is loosening, broken nail, disconnected rod, and cause operative failure, need to carry out second operation.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of simple operation flexibly, can pour into implant,, tissue injury is little, usage safety performance the is high hollow many side openings pedicle screw of Wicresoft.
The technical scheme in the invention for solving the above technical problem is: this pedicle screw comprises rivet nut and the head of a nail, rivet nut head is connected with the head of a nail, rivet nut is provided with external screw thread, and rivet nut is hollow structure, in it, be provided with screw hole, its construction features be rivet nut afterbody 1/3rd places be provided with two with screw hole connect on ooze out hole, rivet nut afterbody be provided with three even circle distribution under ooze out hole, and under ooze out hole and screw hole connects.
The centrage that oozes out hole on two described in the utility model is orthogonal, and on ooze out hole two ends all directly communicate with the external world.
On two described in the utility model, ooze out the centrage in hole perpendicular to the centrage of screw hole, and one end of oozing out hole on two directly communicates with the external world, its other end communicates with screw hole.
Head of a nail afterbody described in the utility model is provided with is with female U-shaped groove.
Head of a nail afterbody described in the utility model is provided with elongated portion, and is provided with wedge-shaped slot between elongated portion and the head of a nail.
Rivet nut head described in the utility model is the integrative-structure being fixedly connected with the head of a nail.
Rivet nut head described in the utility model is the socket join structure being flexibly connected with the head of a nail, and rivet nut can be rotated in the head of a nail.
This utility model compared with prior art, there is following beneficial effect: this bolt structure is simple, simple operation is flexible, can pour into implant, when use, tissue injury is little, adjust easily, and strengthen the intensity of screw, reduce the possibility of broken nail, usage safety performance is high, it is applicable to the lateral bending rectification of breast lumbar vertebra or spinal fixation, lumbar spondylolisthesis or wound, deformation of spinal column or breaks, moves back in the arts such as the capable property of breast lumbar vertebra, damage, neoplastic lesion fix, and the compression fracture of vertabral body that particularly senile osteoporosis causes is fixed.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the front view of this utility model embodiment 1.
Fig. 2 is the rearview of this utility model embodiment 1.
Fig. 3 is the left view of this utility model embodiment 1.
Fig. 4 is the right view of this utility model embodiment 1.
Fig. 5 is the axonometric chart of this utility model embodiment 1.
Fig. 6 is the axonometric chart of this utility model embodiment 2.
Fig. 7 is the axonometric chart of this utility model embodiment 3.
Fig. 8 is the axonometric chart of this utility model embodiment 4.
Fig. 9 is the front view of this utility model embodiment 5.
Figure 10 is the rearview of this utility model embodiment 5.
Figure 11 is the left view of this utility model embodiment 5.
Figure 12 is the right view of this utility model embodiment 5.
Figure 13 is the axonometric chart of this utility model embodiment 5.
Figure 14 is the axonometric chart of this utility model embodiment 6.
Figure 15 is the axonometric chart of this utility model embodiment 7.
Figure 16 is the axonometric chart of this utility model embodiment 8.
The specific embodiment
Embodiment 1:
Referring to Fig. 1-Fig. 5, the present embodiment comprises rivet nut 1 and the head of a nail 2, rivet nut 1 head and the integrative-structure of the head of a nail 2 for being fixedly connected with, rivet nut 1 is provided with external screw thread 5, and rivet nut 1 is hollow structure, in it, be provided with screw hole 10, the head of a nail 2 afterbodys are provided with the U-shaped groove 6 with female thread 9, and U-shaped groove 6 is laterally connected and fixed device for placing.
Rivet nut 1 afterbody 1/3rd places be provided with two with screw hole 10 connect on ooze out that on 3, two, hole, to ooze out the centrage in hole 3 orthogonal, and on ooze out hole 3 two ends all directly communicate with the external world.Rivet nut 1 afterbody be provided with three even circle distribution under ooze out hole 4, the angle oozing out between hole 4 under adjacent is 120 degree, and under ooze out hole 4 and connect with screw hole 10.
In the time implanting pedicle screw, Kirschner wire can be positioned and guided by screw hole 10, remove after Kirschner wire, utilize existing device for casting that implant (bone cement etc.) is injected to screw hole 10 from nail body head, the implant being constantly pressed into from upper bleed opening 3 and under ooze out hole 4 and fill in the external screw thread 5 groove spaces of rivet nut 1, make implant and pedicle screw outside implant and the rivet nut 1 in rivet nut 1 connect into an entirety, greatly strengthen constant intensity and the degree of stability of pedicle screw, reduced broken nail odds.Owing to above oozing out hole 3 and be positioned at 1/3rd places of rivet nut 1 afterbody, therefore implant can disperse to the whole nervous tissue of pedicle nail surrounding, guarantee that seepage danger does not occur in operation, safe and reliable.
Embodiment 2:
Referring to Fig. 6, the present embodiment is provided with elongated portion 8 at the head of a nail 2 afterbodys, and is provided with wedge-shaped slot 7 between elongated portion 8 and the head of a nail 2.The effect of elongated portion 8 is to be in use beneficial to connect pitman, waits after installing pitman and again elongated portion 8 is fractureed and given up.
All the other structures of the present embodiment and using method are all identical with embodiment 1.
Embodiment 3:
Referring to Fig. 7, rivet nut 1 head of the present embodiment and the socket join structure of the head of a nail 2 for being flexibly connected, rivet nut 1 can be in the interior rotation of the head of a nail 2, and its effect is to be convenient in use laterally be connected and fixed device in the interior installation of U-shaped groove 6.
All the other structures of the present embodiment and using method are all identical with embodiment 1.
Embodiment 4:
Referring to Fig. 8, the present embodiment is provided with elongated portion 8 at the head of a nail 2 afterbodys, and is provided with wedge-shaped slot 7 between elongated portion 8 and the head of a nail 2.The effect of elongated portion 8 is to be in use beneficial to connect pitman, waits after installing pitman and again elongated portion 8 is fractureed and given up.And rivet nut 1 head and the socket join structure of the head of a nail 2 for being flexibly connected, rivet nut 1 can be in the interior rotation of the head of a nail 2, and its effect is to be convenient in use laterally be connected and fixed device in the interior installation of U-shaped groove 6.
All the other structures of the present embodiment and using method are all identical with embodiment 1.
Embodiment 5:
Referring to Fig. 9-Figure 13, the present embodiment comprises rivet nut 1 and the head of a nail 2, rivet nut 1 head and the integrative-structure of the head of a nail 2 for being fixedly connected with, rivet nut 1 is provided with external screw thread 5, and rivet nut 1 is hollow structure, in it, be provided with screw hole 10, the head of a nail 2 afterbodys are provided with the U-shaped groove 6 with female thread 9, and U-shaped groove 6 is laterally connected and fixed device for placing.
Rivet nut 1 afterbody 1/3rd places be provided with two with screw hole 10 connect on ooze out on 3, two, hole and ooze out the centrage in hole 3 perpendicular to the centrage of screw hole 10, and on ooze out 3 one end, hole and directly communicate with the external world, the other end communicates with screw hole 10.Rivet nut 1 afterbody be provided with three even circle distribution under ooze out hole 4, the angle oozing out between hole 4 under adjacent is 120 degree, and under ooze out hole 4 and connect with screw hole 10.
The using method of the present embodiment is identical with embodiment 1.
Embodiment 6:
Referring to Figure 14, the present embodiment is provided with elongated portion 8 at the head of a nail 2 afterbodys, and is provided with wedge-shaped slot 7 between elongated portion 8 and the head of a nail 2.The effect of elongated portion 8 is to be in use beneficial to connect pitman, waits after installing pitman and again elongated portion 8 is fractureed and given up.
All the other structures of the present embodiment are identical with embodiment 5, and using method is identical with embodiment 1.
Embodiment 7:
Referring to Figure 15, rivet nut 1 head of the present embodiment and the socket join structure of the head of a nail 2 for being flexibly connected, rivet nut 1 can be in the interior rotation of the head of a nail 2, and its effect is to be convenient in use laterally be connected and fixed device in the interior installation of U-shaped groove 6.
All the other structures of the present embodiment are identical with embodiment 5, and using method is identical with embodiment 1.
Embodiment 8:
Referring to Figure 16, the present embodiment is provided with elongated portion 8 at the head of a nail 2 afterbodys, and is provided with wedge-shaped slot 7 between elongated portion 8 and the head of a nail 2.The effect of elongated portion 8 is to be in use beneficial to connect pitman, waits after installing pitman and again elongated portion 8 is fractureed and given up.And rivet nut 1 head and the socket join structure of the head of a nail 2 for being flexibly connected, rivet nut 1 can be in the interior rotation of the head of a nail 2, and its effect is to be convenient in use laterally be connected and fixed device in the interior installation of U-shaped groove 6.
All the other structures of the present embodiment are identical with embodiment 5, and using method is identical with embodiment 1.
Claims (7)
1. the hollow many side openings pedicle screw of Wicresoft, comprise rivet nut (1) and the head of a nail (2), rivet nut (1) head is connected with the head of a nail (2), rivet nut (1) is provided with external screw thread (5), and rivet nut (1) is hollow structure, in it, be provided with screw hole (10), it is characterized in that: rivet nut (1) afterbody 1/3rd places be provided with two with screw hole (10) connect on ooze out hole (3), rivet nut (1) afterbody be provided with three even circle distribution under ooze out hole (4), and under ooze out hole (4) and screw hole (10) and connect.
2. the hollow many side openings pedicle screw of Wicresoft according to claim 1, is characterized in that: the centrage that oozes out hole (3) on described two is orthogonal, and on ooze out hole (3) two ends all directly communicate with the external world.
3. the hollow many side openings pedicle screw of Wicresoft according to claim 1, it is characterized in that: on described two, ooze out the centrage in hole (3) perpendicular to the centrage of screw hole (10), and one end of oozing out hole (3) on two directly communicates with the external world, and its other end communicates with screw hole (10).
4. the hollow many side openings pedicle screw of Wicresoft according to claim 1, is characterized in that: the described head of a nail (2) afterbody is provided with the U-shaped groove (6) with female thread (9).
5. according to the hollow many side openings pedicle screw of the Wicresoft described in claim 1 or 4, it is characterized in that: the described head of a nail (2) afterbody is provided with elongated portion (8), and be provided with wedge-shaped slot (7) between elongated portion (8) and the head of a nail (2).
6. the hollow many side openings pedicle screw of Wicresoft according to claim 1, is characterized in that: described rivet nut (1) head and the integrative-structure of the head of a nail (2) for being fixedly connected with.
7. the hollow many side openings pedicle screw of Wicresoft according to claim 1, is characterized in that: described rivet nut (1) head and the socket join structure of the head of a nail (2) for being flexibly connected, rivet nut (1) can be rotated in the head of a nail (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776742.4U CN203677230U (en) | 2013-12-02 | 2013-12-02 | Minimally invasive hollow multi-side hole spinal pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776742.4U CN203677230U (en) | 2013-12-02 | 2013-12-02 | Minimally invasive hollow multi-side hole spinal pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203677230U true CN203677230U (en) | 2014-07-02 |
Family
ID=50999208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320776742.4U Expired - Lifetime CN203677230U (en) | 2013-12-02 | 2013-12-02 | Minimally invasive hollow multi-side hole spinal pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203677230U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815956A (en) * | 2013-12-02 | 2014-05-28 | 浙江康慈医疗科技有限公司 | Minimally-invasive hollow multi-side-pore pedicle screw |
| CN104799923A (en) * | 2015-04-30 | 2015-07-29 | 中国人民解放军第二军医大学 | Strutting bone grafting instrument for compression fracture of vertebral body |
| CN109745113A (en) * | 2019-03-19 | 2019-05-14 | 西南医科大学附属医院 | A kind of loose bone cement reinforcement pedicle screw of novel bone |
-
2013
- 2013-12-02 CN CN201320776742.4U patent/CN203677230U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103815956A (en) * | 2013-12-02 | 2014-05-28 | 浙江康慈医疗科技有限公司 | Minimally-invasive hollow multi-side-pore pedicle screw |
| CN104799923A (en) * | 2015-04-30 | 2015-07-29 | 中国人民解放军第二军医大学 | Strutting bone grafting instrument for compression fracture of vertebral body |
| CN109745113A (en) * | 2019-03-19 | 2019-05-14 | 西南医科大学附属医院 | A kind of loose bone cement reinforcement pedicle screw of novel bone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |