CN206964670U - A kind of long-tail pedicle screw - Google Patents
A kind of long-tail pedicle screw Download PDFInfo
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- CN206964670U CN206964670U CN201621356371.4U CN201621356371U CN206964670U CN 206964670 U CN206964670 U CN 206964670U CN 201621356371 U CN201621356371 U CN 201621356371U CN 206964670 U CN206964670 U CN 206964670U
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- screw
- pressure ring
- shank
- long
- fixing screws
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Abstract
It the utility model is related to pedicle screw instrumentation field, and disclose a kind of long-tail pedicle screw, including shank of screw, the inner hollow of the shank of screw, the inwall of the shank of screw openend offers neck, the one end of the shank of screw away from openend is installed with the pressure ring of inner hollow, spacing hole is offered in the outer surface of pressure ring, the one end of the pressure ring away from shank of screw is installed with screw mechanism, the screw mechanism includes the fixing screws head being installed in pressure ring, the junction of the fixing screws head and pressure ring is provided with snap ring, the outer surface of the fixing screws head away from snap ring one end is installed with fixture block, and the inside of fixing screws head offers the through hole with being connected inside pressure ring.The long-tail pedicle screw, by setting Universal screw nail head to coordinate with kink, convenient disassembly is realized, simple to operate, Connection Step is simple in actual operation, time-consuming shorter, is advantageous to being normally carried out for operation, mitigates the pain of patient.
Description
Technical field
Pedicle screw instrumentation field is the utility model is related to, specially a kind of long-tail pedicle screw.
Background technology
Pedicle of vertebral arch is a part for vertebral arch, arises from centrum upper back, short and thick, rearward projection vertical with centrum direction,
Its profile is in arc, is merged with centrum, articular process and vertebral plate, and pedicle of vertebral arch is the part for forming intervertebral foramen, thereon
Incisura shallower Fang Youyi forms the lower wall of intervertebral foramen, has a deeper pedicle of vertebral arch inferior thyroid notch to form intervertebral foramen below pedicle of vertebral arch
Upper wall.
Do minimally invasive pedicle screw at present typically adds extension sheet to expose in vitro by plain screw, needed in actual operation compared with
Accurate connection, complex steps are time-consuming longer, are unfavorable for being normally carried out for operation, larger pain is brought to patient, so we
A kind of long-tail pedicle screw is proposed, the problem of to avoid the above.
Utility model content
(1) technical problem solved
In view of the shortcomings of the prior art, the utility model provides a kind of long-tail pedicle screw, possesses and facilitates doctor to grasp
Make and the advantages that bulk strength is preferable, solve and do minimally invasive pedicle screw at present and typically add extension sheet to expose by plain screw
In vitro, need more accurately to connect in actual operation, complex steps, take it is longer, be unfavorable for operation be normally carried out, to patient with
The problem of carrying out larger pain.
(2) technical scheme
Above-mentioned facilitate that doctor operates and the preferable purpose of bulk strength, the utility model provide following technical side to realize
Case：A kind of long-tail pedicle screw, including shank of screw, the inner hollow of the shank of screw, the inwall of the shank of screw openend
Neck is offered, the one end of the shank of screw away from openend is installed with the pressure ring of inner hollow, opened up in the outer surface of pressure ring
Limited location hole, the one end of the pressure ring away from shank of screw are installed with screw mechanism.
Preferably, the screw mechanism includes the fixing screws head being installed in pressure ring, the fixing screws head and pressure ring
Junction be provided with snap ring, the outer surface of the fixing screws head away from snap ring one end is installed with fixture block, and fixed
The inside of head of screw offers the through hole with being connected inside pressure ring.
Preferably, the screw mechanism includes the inserted block being installed in pressure ring, and the inside of inserted block opens up fluted, institute
State the Universal screw nail head that the one end of inserted block away from pressure ring is fixedly connected with inner hollow by kink.
Preferably, the quantity of the spacing hole is four, and spacing hole is divided with the axle center of pressure ring vertical section in circular
Cloth.
Preferably, the groove is U-shaped, and groove connects with the inside of Universal screw nail head.
Preferably, the diameter of the inserted block is more than the diameter of pressure ring opening.
Preferably, the shank of screw, pressure ring and screw mechanism are integrated.
(3) beneficial effect
Compared with prior art, the utility model provides a kind of long-tail pedicle screw, possesses following beneficial effect：
1st, the long-tail pedicle screw, by setting fixing screws head and shank of screw, it is hollow one to make pedicle screw
Change, facilitate doctor's operation and bulk strength is preferable.
2nd, the long-tail pedicle screw, by setting Universal screw nail head to coordinate with kink, convenient disassembly, operation letter are realized
Just, Connection Step is simple in actual operation for folk prescription, time-consuming shorter, is advantageous to being normally carried out for operation, mitigates the pain of patient.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of the utility model embodiment one；
Fig. 2 is the positive structure schematic of the utility model embodiment one；
Fig. 3 is the cross section structure diagram of the utility model embodiment two；
Fig. 4 is the positive structure schematic of the utility model embodiment two.
In figure：1 shank of screw, 2 necks, 3 pressure rings, 4 spacing holes, 5 screw mechanisms, 51 fixing screws heads, 52 snap rings, 53 lead to
Hole, 54 fixture blocks, 55 inserted blocks, 56 Universal screw nail heads, 57 kinks, 58 grooves.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1-4, a kind of long-tail pedicle screw, including shank of screw 1, the inner hollow of shank of screw 1, shank of screw 1
The inwall of openend offers neck 2, and the one end of shank of screw 1 away from openend is installed with the pressure ring 3 of inner hollow, in pressure ring 3
Outer surface offer spacing hole 4, the quantity of spacing hole 4 is four, and spacing hole 4 with the axle center of the vertical section of pressure ring 3 in circle
Annular distribution, the one end of pressure ring 3 away from shank of screw 1 are installed with screw mechanism 5, and shank of screw 1, pressure ring 3 and screw mechanism 5 are integrated
Change structure, simple to operate, Connection Step is simple in actual operation, takes shorter.
Embodiment one：
Fig. 1-2 is referred to, screw mechanism 5 includes the inserted block 55 being installed in pressure ring 3, and the diameter of inserted block 55 is more than pressure ring 3
The diameter of opening, and the inside of inserted block 55 opens up fluted 58, groove 58 are U-shaped, and groove 58 and Universal screw nail first 56
Inside connection, the one end of inserted block 55 away from pressure ring 3 is fixedly connected with the Universal screw nail first 56 of inner hollow by kink 57,
By setting Universal screw nail first 56 and kink 57 to coordinate, convenient disassembly is realized, it is simple to operate, connected in actual operation
Step is simple, time-consuming shorter, is advantageous to being normally carried out for operation, mitigates the pain of patient.
Embodiment two：
Fig. 3-4 are referred to, screw mechanism 5 includes the fixing screws first 51 being installed in pressure ring 3, fixing screws first 51 and pressure
The junction of ring 3 is provided with snap ring 52, and outer surface of the fixing screws first 51 away from the one end of snap ring 52 is installed with fixture block 54, and
And the inside of fixing screws first 51 offers the through hole 53 connected with the inside of pressure ring 3, by setting fixing screws first 51 and screw
Bar 1, it is hollow integration to make pedicle screw, facilitates doctor's operation and bulk strength is preferable.In summary, the long-tail pedicle
Screw, by setting fixing screws first 51 and shank of screw 1, it is hollow integration to make pedicle screw, facilitate doctor operate and it is whole
Body intensity is preferable.
In summary, the long-tail pedicle screw, by setting fixing screws first 51 and shank of screw 1, pedicle screw is made
For hollow integration, facilitate doctor's operation and bulk strength is preferable.
By setting Universal screw nail first 56 and kink 57 to coordinate, convenient disassembly is realized, it is simple to operate, in actual hand
Connection Step is simple in art, take it is shorter, be advantageous to operation be normally carried out, mitigate the pain of patient, solve do at present it is micro-
The pedicle screw of wound typically adds extension sheet to expose in vitro by plain screw, needs more accurately to connect in actual operation, step is numerous
It is trivial, take longer, be unfavorable for being normally carried out for operation, the problem of bringing larger pain to patient.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of long-tail pedicle screw, including shank of screw (1), it is characterised in that：The inner hollow of the shank of screw (1), institute
The inwall for stating shank of screw (1) openend offers neck (2), and the one end of the shank of screw (1) away from openend is installed with inside
Hollow pressure ring (3), spacing hole (4), the one end of the pressure ring (3) away from shank of screw (1) are offered in the outer surface of pressure ring (3)
It is installed with screw mechanism (5)；The screw mechanism (5) includes the fixing screws head (51) being installed in pressure ring (3), the fixation
The junction of head of screw (51) and pressure ring (3) is provided with snap ring (52), and the fixing screws head (51) is away from snap ring (52) one end
Outer surface be installed with fixture block (54), and the inside of fixing screws head (51) offers and connected inside pressure ring (3)
Through hole (53)；The screw mechanism (5) includes the inserted block (55) being installed in pressure ring (3), and the inside of inserted block (55) opens up
Fluted (58), the one end of the inserted block (55) away from pressure ring (3) are fixedly connected with the ten thousand of inner hollow by kink (57)
To head of screw (56).
A kind of 2. long-tail pedicle screw according to claim 1, it is characterised in that：The quantity of the spacing hole (4) is
Four, and spacing hole (4) is distributed with the axle center of pressure ring (3) vertical section in circular.
A kind of 3. long-tail pedicle screw according to claim 1, it is characterised in that：The groove (58) is U-shaped, and
Groove (58) connects with the inside of Universal screw nail head (56).
A kind of 4. long-tail pedicle screw according to claim 1, it is characterised in that：The diameter of the inserted block (55) is more than
The diameter of pressure ring (3) opening.
A kind of 5. long-tail pedicle screw according to claim 1, it is characterised in that：The shank of screw (1), pressure ring (3)
It is integrated with screw mechanism (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621356371.4U CN206964670U (en) | 2016-12-12 | 2016-12-12 | A kind of long-tail pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621356371.4U CN206964670U (en) | 2016-12-12 | 2016-12-12 | A kind of long-tail pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206964670U true CN206964670U (en) | 2018-02-06 |
Family
ID=61413467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621356371.4U Active CN206964670U (en) | 2016-12-12 | 2016-12-12 | A kind of long-tail pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206964670U (en) |
-
2016
- 2016-12-12 CN CN201621356371.4U patent/CN206964670U/en active Active
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