CN208864470U - A kind of upper spike devices of backbone fixing glue - Google Patents
A kind of upper spike devices of backbone fixing glue Download PDFInfo
- Publication number
- CN208864470U CN208864470U CN201721055617.9U CN201721055617U CN208864470U CN 208864470 U CN208864470 U CN 208864470U CN 201721055617 U CN201721055617 U CN 201721055617U CN 208864470 U CN208864470 U CN 208864470U
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- CN
- China
- Prior art keywords
- canister portion
- locking
- upper nail
- rod
- cap
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Abstract
The utility model discloses a kind of upper spike devices of backbone fixing glue, including upper nail rod, housing, housing includes holding canister portion and guiding canister portion, it is oriented to canister portion and holds between canister portion through connection canister portion connection, the rear end screw thread for holding canister portion is equipped with rear end cap, rear locking cap is movably installed in upper nail rod, occlusion structure is provided between locking cap and rear end cap afterwards, rear in upper nail rod positioned at rear locking cap is provided with the limited step with the cooperation of rear locking cap, radial elastic sliding has locking button on locking cap afterwards, lock sheet is provided on the locking button, locking through-hole is provided on lock sheet, locking section is provided in upper nail rod.Spike devices are in upper timing housing and upper nail rod synchronous rotary on this, and this avoid the loosenings of upper nail rod, and in addition spike devices can be connect with other driving devices on this, while being adapted to various sizes of backbone fixing glue.
Description
Technical field
The utility model relates to a kind of upper spike devices, more particularly to it is a kind of in spinal operation to backbone fixing glue into
The upper spike devices followed closely on row.
Background technique
Spinal vertebral lesion be perplex people common disease and frequently-occurring disease, the main method for treating this kind of disease be perform the operation into
Row backbone lesion resection, then carries out column reconstruction.It usually requires to carry out on backbone using spinal stabilization system in the operation
Fixed in centrum, spinal stabilization system is commonly called as nail-stick system.And the backbone fixing glue that nail-stick system uses, need specific purpose tool into
It is followed closely on row, current upper spike devices are relatively simple for structure, including the longer upper nail rod of a whole root long degree and sleeve, before upper nail rod
There is a upper ailhead at end, and tail portion has a connection handle, and there is a thread segment in the front end of sleeve, sleeve cover in upper nail rod and with backbone fixing glue
Screw hole be threadedly coupled, it is upper to determine head and be located in the U-lag of backbone fixing glue.The structure have the disadvantage in that 1. upper nail mistake
Cheng Zhong, upper nail rod rotation may make sleeve for turning, so that the threaded connection on backbone fixing glue and sleeve be made to loosen, lead to nail
Head is difficult to carry out the work of stable fixation pedicle nail, increases the danger coefficient of operation；2. current upper nail rod is one
Longer bar, difficulty of processing is high, and straightness is difficult to guarantee；The upper of especially upper nail rod is determined area of bed and is fixed, and therefore, binds on one
A type of spinal set screw can only be suitble to by setting；3. current upper spike devices still can only can be manually rotated nail rod, upper nail
Low efficiency.
Utility model content
It is bound the technical problem to be solved by the utility model is to provide a kind of upper spike devices of backbone fixing glue, on this
It sets in upper timing housing and upper nail rod synchronous rotary, this avoid the loosenings of upper nail rod, and in addition spike devices can be with other on this
Driving device connection, while being adapted to various sizes of backbone fixing glue.
In order to solve the above technical problems, the technical solution of the utility model is: a kind of upper spike devices of backbone fixing glue, packet
Include the upper nail rod of segmented, the front end of upper nail rod is provided with the upper nail head of "-" type, the rear end of upper nail rod be provided with it is convenient with
The connection tail portion of regular hexagon is movably installed with housing in the upper nail rod, and the housing includes the gripping canister portion for facilitating gripping
Be located at hold canister portion front end guiding canister portion, it is described guiding canister portion outer diameter be less than hold canister portion outer diameter, guiding canister portion and
It holds by the connection canister portion connection gradually tapered up between canister portion, the front end of the guiding canister portion is provided with threaded joints, institute
The rear end screw thread for stating gripping canister portion is equipped with rear end cap, and the limited block with rear end cap cooperation, the limit are fixed in the upper nail rod
Position block is located in the inner hole for holding canister portion；Rear locking cap, the rear locking cap and rear end cap are movably installed in the upper nail rod
Between adjacent surface on be provided with the occlusion structure being mutually twisted, the rear that rear locking cap is located in the upper nail rod is provided with
With the limited step of rear locking cap cooperation, it is described after on locking cap radial elastic sliding have locking button, set on the locking button
It is equipped with lock sheet, the locking through-hole of regular hexagon is provided on lock sheet, the size of the locking through-hole is greater than the size of upper nail rod,
The locking section that sectional dimension is less than upper nail rod is provided in the upper nail rod, the section of the locking section is regular hexagon, after described
The locking through-hole of lock sheet and locking section corresponding matching when locking cap is engaged with rear end cap.
As a preferred solution, the occlusion structure includes the rear end face straight-tooth being set on rear end cap and is set to
Front end face straight-tooth on locking cap afterwards, rear end face straight-tooth and the intermeshing of front end face straight-tooth.
As a preferred solution, the upper nail rod of the segmented includes front rod section and rear rod segment, it is described after in rod segment
Axial direction jack is set, and the front rod section is inserted into the axial direction jack and is fixed by screw, the front end setting of the front rod section
There is a upper nail head of the "-" type, the link position of the front rod section and rear rod segment is located in guiding canister portion.
As a preferred solution, the limited block is set in rear rod segment and is locked by screw.
As a preferred solution, the spacing between the upper nail head and threaded joints of the "-" type is 1.5cm.
As a preferred solution, the outer peripheral surface for holding canister portion is provided with rough surface, and holds the periphery of canister portion
It is provided on face by the external through hole being connected to gripping canister portion inner hole.
After above-mentioned technical proposal, the effect of the utility model is: 1. spike devices on this using segmentation upper nail rod,
Not only reduce the difficulty of processing of nail rod, and when needing to adapt to various sizes of backbone and following closely admittedly, it is only necessary to by upper nail rod
Most leading portion replacement, i.e., replaceable different upper nail head；2. being all provided on the adjacent surface after described between locking cap and rear end cap
It is equipped with the occlusion structure being mutually twisted, the rear that rear locking cap is located in the upper nail rod is provided with the limit cooperated with rear locking cap
Position step, it is described after on locking cap radial elastic sliding have locking button, lock sheet is provided on the locking button, on lock sheet
It is provided with the locking through-hole of regular hexagon, the size of the locking through-hole is greater than the size of upper nail rod, is provided in the upper nail rod
Sectional dimension is less than the locking section of upper nail rod, and the section of the locking section is regular hexagon, and the rear locking cap is engaged with rear end cap
When lock sheet locking through-hole and locking section corresponding matching when upper nail, the upper nail head of upper nail rod is first therefore put into backbone
In the U-lag of fixing glue, and rear locking cap and rear end cap separation, in this way can independent rotary sleeve, twist threaded joints
Enter into the ailhead of fixing glue, stops after rear end cap and limited block contact in this way, which is just pressed on U for upper nail head
In shape slot, rear locking cap, which is then slided to rear end cap, makes its occlusion, and the hole face for locking through-hole at this time is engaged with locking section, this
Sample is fixed rear locking cap with upper ejector pin by locking through-hole and locking section, is consolidated rear locking cap and rear end cap by occlusion structure
Fixed, such housing and upper ejector pin are with regard to synchronous rotary, the case where being not in loosening；3. the housing includes the gripping for facilitating gripping
Canister portion and positioned at hold canister portion front end guiding canister portion, it is described guiding canister portion outer diameter be less than hold canister portion outer diameter, guide cylinder
By the connection canister portion connection gradually tapered up between portion and gripping canister portion, the front end of the guiding canister portion is provided with threaded connection
Portion, the limited block are located in the inner hole for holding canister portion；This jacket structure is very reasonable, and entirely upper spike devices shape more flows
Line facilitates housing to rotate, and limited block is located inside gripping canister portion, external more succinct.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structure sectional view of the utility model embodiment；
Fig. 2 is the scheme of installation of upper spike devices Yu backbone fixing glue；
Fig. 3 is the relative position figure that through-hole and locking section are locked when rear locking cap is separated with rear end cap；
Fig. 4 is the relative position figure that through-hole and locking section are locked when locking cap is engaged with rear end cap；
In attached drawing: nail rod on 1.；11. front rod section；Rod segment after 12.；Nail head on 13.；14. limited block；15. locking section；
16. limited step；17. connecting tail portion；2. housing；21. being oriented to canister portion；22. threaded joints；23. connecting canister portion；24. holding
Canister portion；3. rear end cap；Locking cap after 4.；5. locking button；51. lock sheet；52. locking through-hole；6. occlusion structure；7. locking bullet
Spring；8. backbone fixing glue.
Specific embodiment
The utility model is described in further detail below by specific embodiment.
As shown in Figures 1 to 4, a kind of upper spike devices of backbone fixing glue 8, the upper nail rod 1 including segmented, upper nail rod 1
Front end be provided with the upper nail head 13 of "-" type, the rear end of upper nail rod 1 is provided with the convenient connection tail portion 17 with regular hexagon,
As depicted in figs. 1 and 2, the upper nail rod 1 of the segmented includes front rod section 11 and rear rod segment 12, and axis is arranged in the rear rod segment 12
To jack, the front rod section 11 is inserted into the axial direction jack and is fixed by screw, and the front end of the front rod section 11 is provided with
The link position of the upper nail head 13 of the "-" type, the front rod section 11 and rear rod segment 12 is located in guiding canister portion 21.When stubborn
Lower screw can separate front rod section 11 and rear rod segment 12, to be convenient for changing front rod section 11.
Housing 2 is movably installed in the upper nail rod 1, the housing 2 includes facilitating the gripping canister portion 24 of gripping and being located at
The guiding canister portion 21 of 24 front end of canister portion is held, the outer diameter of the guiding canister portion 21 is less than the outer diameter for holding canister portion 24, is oriented to canister portion
It is connected between 21 and gripping canister portion 24 by the connection canister portion 23 gradually tapered up, the front end of the guiding canister portion 21 is provided with screw thread
Interconnecting piece 22, the spacing between the upper nail head 13 and threaded joints 22 of the "-" type are 1.5cm.The gripping canister portion
24 rear end screw thread is equipped with rear end cap 3, and the limited block 14 cooperated with rear end cap 3, the limited block are fixed in the upper nail rod 1
14 are located in the inner hole for holding canister portion 24；The limited block 14 is set in rear rod segment 12 and is locked by screw.It is described
It is movably installed with rear locking cap 4 in upper nail rod 1, is provided with mutually on the adjacent surface between the rear locking cap 4 and rear end cap 3
The occlusion structure 6 of occlusion, the occlusion structure 6 include the rear end face straight-tooth being set on rear end cap 3 and are set to rear locking cap 4
On front end face straight-tooth, rear end face straight-tooth and front end face straight-tooth intermeshing.
Rear in the upper nail rod 1 positioned at rear locking cap 4 is provided with the limited step 16 with the cooperation of rear locking cap 4, after
Locking cap 4, which just slides axially in upper nail rod 1, is limited 16 limit slippage distance of step.
Radial elastic sliding has locking button 5 on locking cap 4 after described, is provided with lock sheet 51 on the locking button 5, locks
The locking through-hole 52 of regular hexagon is provided on tight piece 51, the size of the locking through-hole 52 is greater than the size of upper nail rod 1, rear to lock
Radial groove is provided on cap 4, locking button 5, which radially slides, to be installed in radial groove, and locking bullet is provided on radial groove
Spring 7 acts on lock sheet 51, which can force the locking outside Slideslip of button 5.Section is provided in the upper nail rod 1
Size is less than the locking section 15 of upper nail rod 1, and the section of the locking section 15 is regular hexagon, and the rear locking cap 4 is stung with rear end cap 3
The locking through-hole 52 of lock sheet 51 and 15 corresponding matching of locking section when conjunction.As shown in Figure 3 and Figure 4, after pressing locking button 5,
It locks through-hole 52 and locking section 15 is concentric, it is also concentric with entire upper nail rod 1, in this way, rear locking cap 4 can slide backward and quilt
Limited step 16 limits；When needing to lock rear end cap 3, rear locking cap 4 is moved forward and is engaged with rear end cap 3, it is then loose
Open locking button 5 locks through-hole 52 at this time and locking section 15 is eccentric at this point, popping up because of the effect of locking spring 7, thus
It locks through-hole 52 and contacts locking with locking section 15.
The outer peripheral surface for holding canister portion 24 is provided with rough surface, and being provided on the outer peripheral surface of gripping canister portion 24 will be external
The through hole being connected to gripping 24 inner hole of canister portion, rough surface are to increase curable grip using axial striped.And through hole can be convenient
Observe the position of limited block 14.
Embodiment described above is only the description to the preferred embodiment of the present invention, not as the limit to the scope of the invention
It is fixed, on the basis of not departing from design spirit of the present invention, to various modifications and transformation that technical solution of the present invention is made, it should all fall
Enter in the protection scope that claims of the present invention determines.
Claims (6)
1. a kind of upper spike devices of backbone fixing glue, it is characterised in that: the upper nail rod including segmented, the front end setting of upper nail rod
There is the upper nail head of "-" type, the rear end of upper nail rod is provided with the convenient connection tail portion with regular hexagon, lives in the upper nail rod
Dynamic to be set with housing, the housing includes the grippings canister portion for facilitating gripping and the guiding canister portion positioned at gripping canister portion front end, described
The outer diameter for being oriented to canister portion is less than the outer diameter for holding canister portion, is oriented to canister portion and holds the connection canister portion between canister portion by gradually tapering up
Connection, the front end of the guiding canister portion are provided with threaded joints, and the rear end screw thread for holding canister portion is equipped with rear end cap, institute
The limited block being fixed in nail rod with rear end cap cooperation is stated, which is located in the inner hole for holding canister portion；The upper nail rod
On be movably installed with rear locking cap, be provided with the occlusion being mutually twisted on adjacent surface between locking cap and rear end cap after described
Structure, the rear that rear locking cap is located in the upper nail rod are provided with limited step with the cooperation of rear locking cap, it is described after locking
Radial elastic sliding has locking button on cap, and lock sheet is provided on the locking button, is provided with regular hexagon on lock sheet
Through-hole is locked, the size of the locking through-hole is greater than the size of upper nail rod, and sectional dimension is provided in the upper nail rod less than upper nail
The locking section of bar, the section of the locking section are regular hexagon, and the locking of lock sheet is logical when the rear locking cap is engaged with rear end cap
Hole and locking section corresponding matching.
2. a kind of upper spike devices of backbone fixing glue as described in claim 1, it is characterised in that: the occlusion structure includes setting
The rear end face straight-tooth being placed on rear end cap and the front end face straight-tooth being set on rear locking cap, rear end face straight-tooth and front end face straight-tooth
Intermeshing.
3. a kind of upper spike devices of backbone fixing glue as claimed in claim 2, it is characterised in that: the upper nail rod of the segmented
Including front rod section and rear rod segment, axial direction jack is set in the rear rod segment, the front rod section is inserted into the axial direction jack and leads to
It crosses screw to fix, the front end of the front rod section is provided with the upper nail head of the "-" type, the company of the front rod section and rear rod segment
Position is connect to be located in guiding canister portion.
4. a kind of upper spike devices of backbone fixing glue as claimed in claim 3, it is characterised in that: after the limited block is set in
It is locked in rod segment and by screw.
5. a kind of upper spike devices of backbone fixing glue as claimed in claim 4, it is characterised in that: the upper ailhead of the "-" type
Spacing between portion and threaded joints is 1.5cm.
6. a kind of upper spike devices of backbone fixing glue as claimed in claim 5, it is characterised in that: the periphery for holding canister portion
Face is provided with rough surface, and is provided on the outer peripheral surface of gripping canister portion by the external through hole being connected to gripping canister portion inner hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721055617.9U CN208864470U (en) | 2017-08-22 | 2017-08-22 | A kind of upper spike devices of backbone fixing glue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721055617.9U CN208864470U (en) | 2017-08-22 | 2017-08-22 | A kind of upper spike devices of backbone fixing glue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208864470U true CN208864470U (en) | 2019-05-17 |
Family
ID=66460432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721055617.9U Active CN208864470U (en) | 2017-08-22 | 2017-08-22 | A kind of upper spike devices of backbone fixing glue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208864470U (en) |
-
2017
- 2017-08-22 CN CN201721055617.9U patent/CN208864470U/en active Active
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