CN205054419U - Special crow -bar of pedicle of vertebral arch nail - Google Patents
Special crow -bar of pedicle of vertebral arch nail Download PDFInfo
- Publication number
- CN205054419U CN205054419U CN201520782176.7U CN201520782176U CN205054419U CN 205054419 U CN205054419 U CN 205054419U CN 201520782176 U CN201520782176 U CN 201520782176U CN 205054419 U CN205054419 U CN 205054419U
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- bar
- nail
- sleeve pipe
- assembly
- subassembly
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Abstract
The utility model belongs to the technical field of medical instrument and specifically relates to a special crow -bar of pedicle of vertebral arch nail. The utility model discloses a realize through following technical scheme: a special crow -bar of pedicle of vertebral arch nail, is including following closely pole, sleeve pipe, prevent to revolve subassembly, end pin and horizontal pole, wherein: soon subassembly running -on is prevented in the setting of sleeve pipe head end, prevents subassembly running -on setting soon and prevents subassembly soon, prevents soon that the subassembly registrates the connection on the sleeve pipe, and the sleeve pipe tail end sets up the end pin, and horizontal pole inserted casing tail end, and registrating into the end pin, prevents soon that the whole cavity of subassembly sets up nail pole groove at the sleeve pipe, and the nail pole inserts from the nail pole trough end in prevents that the subassembly is intraductal with the cover soon, and the bottom is sealed by the horizontal pole.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specially a kind of pedicle nail special crow-bar.
Background technology
Spinal vertebral pathological changes is commonly encountered diseases and the frequently-occurring disease of puzzlement people, and the main method for the treatment of this kind of disease is that spinal column lesion resection is carried out in operation, then carries out column reconstruction.Usually need in this operation on spinal column, use spinal stabilization system to carry out vertebral body internal fixtion, spinal stabilization system is commonly called as nail-stick system.Described nail-stick system structure comprises: the two ends of spinal rod are separately installed with pedicle nail.On spinal column during staple bar system, need specific purpose tool be used---spinal screw feeder fixes pedicle nail.The spinal screw feeder used at present, its structure comprises: staple connecting rod, staple connecting rod comprises con-rod only, one end of con-rod only is fixedly installed ailhead, the other end of con-rod only is fixedly installed link rod handle, con-rod only is movably installed with sleeve, sleeve is provided with collar, sleeve is fixedly installed turncap near one end of link rod handle, turncap also movable set on con-rod only, sleeve between collar and turncap is movably installed with handle, and sleeve is provided with screw thread on the end of the side of upper ailhead.During use, upper ailhead is put into " U " shape groove of pedicle nail, one holds handle, turn turncap on the other hand, due to be provided with in the U-lag of pedicle nail with sleeve ends with the use of screw thread, such rotation turncap make sleeve and nail pedicle fix complete, and then pivot link handle, makes ailhead drive pedicle nail common rotation and is fixed on the upper corresponding position of vertebral body.The spinal screw feeder of said structure, due in use, the hands holding handle often applies a thrust to sleeve unawares, sleeve and handle are tightly fit together and relative stopping does not turn along with handle, the reversion of sleeve and pedicle nail can be produced like this while pivot link handle, thus make pedicle nail loosening with being threaded on sleeve, cause ailhead to be difficult to carry out the work of stable fixing pedicle nail, add the danger coefficient of operation.
Summary of the invention
It is low that this utility model can well overcome prior art safety coefficient, uses inconvenient shortcoming.
This utility model is achieved through the following technical solutions: a kind of pedicle nail special crow-bar, comprise nail bar, sleeve pipe, prevent revolving assembly, end pin and cross bar, wherein: described sleeve pipe head end is arranged to be prevented revolving assembly running-on, the anti-assembly running-on that revolves arranges and anti-ly revolves assembly, prevent that revolving assembly fit is connected on sleeve pipe, cannula end arranges end pin, cross bar inserts cannula end, and cover is incorporated into end pin, sleeve pipe, anti-component integration hollow of revolving arrange nail bar groove, nail bar inserts anti-revolving in assembly and sleeve pipe in nail bar trough end, and bottom is sealed by cross bar;
Nail bar has been provided with bar, ring bar, hexahedro bar and foot piece by head end to tail end, plays the setting of masthead end and starts, hexahedro bar arranges hexahedro axle, arranges end pin connecting axle bottom foot piece;
Describedly anti-revolve assembly and be provided with locked groove, arrange card button in locked groove, card button bottom arranges back-moving spring, and described card button is also provided with at least one offside button;
Described sleeve pipe is integrally made up of with nail bar inserted link the anti-assembly cover head that revolves, and the anti-assembly cover apical head that revolves arranges ring gear cover, and ring gear overlaps rear and arranges pintle hook lock, pintle hook lock is arranged groove or screw thread, mates ring gear cover inwall lines, overlaps fit with ring gear.
Be metal material as preferred described nail bar.
Form by pulling out handle and pushing up handle as preferred described cross bar.
Be five diamond patterns or six rhombuses as preferred described hexahedro axle cross section.
This utility model is compared with background technology, the useful effect had is: easy and simple to handle, effectively prevent because of after relative reversion occurs sleeve and pedicle nail, the situation causing sleeve and pedicle nail to loosen occurs, substantially increase the safety coefficient of operation, easy to assembly, split and the mutual cutting ferrule degree of tightness of fit are applicable to there will not be the other influences use safety such as slip and uncertain factor very much, damage and also easily keep in repair, up time is long, ingenious to the snap close and boosting mechanism design of following closely bar, card button and ring gear cover can be utilized to carry out underlying the providing in top and to put forth effort the strong point, also can prevent from rotating, but regulating tooth ring set can allow again nail, and bar arbitrarily rotates, the cross bar of tail end well can play the effect of stop and stop bit.
Accompanying drawing explanation
Fig. 1 is this utility model overall diagram.
Fig. 2 is nail bar structure chart.
Fig. 3 is sleeve structure figure.
Fig. 4 is ring gear cover front view structure chart.
Fig. 5 revolves assembly assumption diagram for anti-.
Fig. 6 is for preventing that revolving assembly looks up perspective structure figure.
Fig. 7 is card button structure figure.
Detailed description of the invention
Below by embodiment, by reference to the accompanying drawings, the technical solution of the utility model is described in further detail:
As shown in Fig. 1 to 7, a kind of pedicle nail special crow-bar, comprise nail bar 1, sleeve pipe 2, prevent revolving assembly 3, end pin 4 and cross bar 5, wherein: described sleeve pipe head end is arranged to be prevented revolving assembly running-on 6, the anti-assembly running-on that revolves arranges and anti-ly revolves assembly 7, prevent that revolving assembly fit is connected on sleeve pipe, cannula end arranges end pin, cross bar inserts cannula end, and cover is incorporated into end pin, sleeve pipe, anti-component integration hollow of revolving arrange nail bar groove 8, and nail bar inserts anti-revolving in assembly and sleeve pipe in nail bar trough end, and bottom is sealed by cross bar;
Nail bar has been provided with bar 9, ring bar 10, hexahedro bar 11 and foot piece 12 by head end to tail end, plays the setting of masthead end and starts 13, hexahedro bar is arranged hexahedro axle 14, arrange end pin connecting axle 15 bottom foot piece;
Describedly anti-revolve assembly and be provided with locked groove 16, arrange card button 17 in locked groove, card button bottom arranges back-moving spring 18, and described card button is also provided with at least one offside button 19;
Described sleeve pipe overlaps head 20 and nail bar inserted link 21 integrally forms by the anti-assembly that revolves, and the anti-assembly cover apical head that revolves arranges ring gear cover 22, and ring gear cover rear arranges pintle hook lock 23, pintle hook lock is arranged groove or screw thread, and coupling ring gear cover inwall lines, overlaps fit with ring gear.
After this utility model combines according to above-mentioned situation, pedicle nail is snapped in starting, regulate the length of nail bar, with the locking of tail end cross bar, press down sleeve pipe, if run into the pedicle nail needing different angles, can to upspring card button, and rotate the loose ring gear cover of tune, again press card button again after regulating angle, and rotation tightens ring gear cover.
Be metal material as preferred described nail bar.
Form by pulling out handle 24 and pushing up handle 25 as preferred described cross bar.
Be five diamond patterns or six rhombuses as preferred described hexahedro axle cross section.
Specific embodiment described herein is only to the explanation for example of this utility model spirit.This utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (4)
1. a pedicle nail special crow-bar, comprise nail bar (1), sleeve pipe (2), prevent revolving assembly (3), end pin (4) and cross bar (5), it is characterized in that: described sleeve pipe head end is arranged to be prevented revolving assembly running-on (6), the anti-assembly running-on that revolves arranges and anti-ly revolves assembly, prevent that revolving assembly fit is connected on sleeve pipe, cannula end arranges end pin, cross bar inserts cannula end, and cover is incorporated into end pin, sleeve pipe, anti-component integration hollow of revolving arrange nail bar groove (8), nail bar inserts anti-revolving in assembly and sleeve pipe in nail bar trough end, and bottom is sealed by cross bar;
Nail bar has been provided with bar (9), ring bar (10), hexahedro bar (11) and foot piece (12) by head end to tail end, plays the setting of masthead end and starts (13), hexahedro bar is arranged hexahedro axle (14), arrange end pin connecting axle (15) bottom foot piece;
Describedly anti-revolve assembly and be provided with locked groove (16), arrange card button (17) in locked groove, card button bottom arranges back-moving spring (18), and described card button is also provided with at least one offside button (19);
Described sleeve pipe is by preventing revolving assembly cover head (20) and following closely bar inserted link (21) one forming, the anti-assembly cover apical head that revolves arranges ring gear cover (22), and ring gear cover rear arranges pintle hook lock (23), pintle hook lock is arranged groove or screw thread, coupling ring gear cover inwall lines, overlaps fit with ring gear.
2. a kind of pedicle nail according to claim 1 special crow-bar, is characterized in that: described nail bar is metal material.
3. a kind of pedicle nail according to claim 1 special crow-bar, is characterized in that: described cross bar forms by pulling out handle (24) and pushing up handle (25).
4. a kind of pedicle nail according to claim 1 special crow-bar, is characterized in that: described hexahedro axle cross section is five diamond patterns or six rhombuses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520782176.7U CN205054419U (en) | 2015-10-10 | 2015-10-10 | Special crow -bar of pedicle of vertebral arch nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520782176.7U CN205054419U (en) | 2015-10-10 | 2015-10-10 | Special crow -bar of pedicle of vertebral arch nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205054419U true CN205054419U (en) | 2016-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520782176.7U Active CN205054419U (en) | 2015-10-10 | 2015-10-10 | Special crow -bar of pedicle of vertebral arch nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205054419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108158669A (en) * | 2018-01-16 | 2018-06-15 | 王珏 | A kind of spinal pedicle puts nail soft tissue protective device |
-
2015
- 2015-10-10 CN CN201520782176.7U patent/CN205054419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108158669A (en) * | 2018-01-16 | 2018-06-15 | 王珏 | A kind of spinal pedicle puts nail soft tissue protective device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |