CN2742931Y - Rhachis locking steel nail - Google Patents
Rhachis locking steel nail Download PDFInfo
- Publication number
- CN2742931Y CN2742931Y CN 200420112210 CN200420112210U CN2742931Y CN 2742931 Y CN2742931 Y CN 2742931Y CN 200420112210 CN200420112210 CN 200420112210 CN 200420112210 U CN200420112210 U CN 200420112210U CN 2742931 Y CN2742931 Y CN 2742931Y
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- CN
- China
- Prior art keywords
- fixed part
- screw
- fixed
- thread
- steel nail
- Prior art date
- 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 - Fee Related
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Abstract
The utility model relates to a vertebra locking steel nail, particularly a vertebra locking and locating steel nail with convenient assembly and position, which comprises a fixed screw rod, a fixed screw cap and a locating block, wherein one end of the fixed screw rod is provided with a fixed part with a U-shaped sectional plane; the outer side of the fixed part is provided with outer threads, and the fixed screw cap is arranged outside the fixed part of the fixed screw rod. The inner side of the fixed screw cap is provided with inner threads which are screwed with the outer threads of the fixed part. The center of the fixed screw cap is provided with a screw hole, and the outer side of the locating block arranged in the screw hole of the fixed screw cap is provided with outer threads which can be screwed with the screw hole of the fixed screw cap. Therefore, in the utility model, the fixed screw cap can be directly arranged outside the fixed part of the fixed screw rod. A connecting rod is fixed by the locating block positioned at the center of the fixed screw cap. Therefore, the locating block can not be moved. The utility model has the advantage of simple and convenient use.
Description
Technical field
This utility model refers in particular to a kind of vertebrae locking location steel nail easily of assembling and locate about a kind of vertebra locking steel nail.
Background technology
Human health is supported by each position skeleton of inside of human body, make muscle on the human body, blood vessel can be because of the effect of gravity storehouse together, in the skeleton of human body, vertebra is most important position, and it extends downward a burst portion by the medulla oblongata position, contains most neural in vertebra, and form by most vertebra joint bone serial connections, when the joint bone of any joint wherein produces displacement, just can cause human body inconvenience in the action, in addition throughout one's life irremovable sorry.
Please referring to Fig. 7 and shown in Figure 8, existing vertebra locking steel nail includes:
Standing screw 40, this standing screw one end is provided with the fixed part 41 that section is the U font, and these fixed part 41 outsides are provided with external screw thread 42, and the inboard then is provided with female thread 43;
Hold-doun nut 44, it is arranged on fixed part 41 outsides of standing screw 44, and its inboard is provided with the female thread 45 that can screw togather with the external screw thread 42 of fixed part 41;
Locating piece 46, it is arranged on fixed part 41 inboards of standing screw 40, and its outside is provided with the external screw thread 47 that can screw togather with the female thread 43 of fixed part 41.
Please referring to Fig. 9 and shown in Figure 10, existing structure in use, at first standing screw 40 is screwed in the vertebrae fixing after, be arranged in fixed part 41 outsides with hold-doun nut 44, in the fixed part 41 of two standing screws 40, connecting rod 20 is set, again locating piece 46 is arranged in the fixed part 41 position with packing positioning link bar 20, or earlier connecting rod 20 is arranged on fixed part 41 inside, with the position of locating piece 46 first fixed connecting rods 20, again hold-doun nut 44 is locked in fixed part 41 outsides so that all component is fixed.
Yet above-mentioned structure but has following shortcoming to exist in the use.
When user is arranged in hold-doun nut the fixed part outside earlier, in the fixed part of two standing screws, connecting rod is set, again locating piece is arranged in the fixed part occasion with the position of packing positioning link bar, fixed part is because be fixed the packing of nut institute earlier, can produce the problem that locating piece is difficult for moving and take place in fixed part, cause the packing connecting rod that locating piece can't be certain.
When user is arranged on fixed part inside with connecting rod earlier, position with locating piece elder generation fixed connecting rod, again with hold-doun nut locking in the fixed part outside with the fixed occasion of all component, because locating piece is in fixed part when mobile, will make the both sides of fixed part outwards strut, cause the hold-doun nut of back can't be arranged in the fixed part outside smoothly, therefore use extremely inconvenient.
Summary of the invention
Main purpose of the present utility model is to provide a kind of steel nail of vertebra locking easily of assembling and locate.
In order to reach above-mentioned utility model purpose, this utility model takes following technological means to reach, and wherein this utility model includes:
Standing screw, this standing screw one end is provided with the fixed part that section is the U font, and this fixed part outside is provided with external screw thread;
Hold-doun nut, it is arranged on the fixed part outside of standing screw, its inboard be provided with can with the female thread of the external thread spiro fastening of fixed part, central authorities are provided with screw;
Locating piece, it is arranged in the screw of hold-doun nut, its outside be provided with can with the external screw thread of the screwhole spiro bonding of hold-doun nut.
By above-mentioned structure, this utility model can directly be arranged on hold-doun nut earlier the fixed part outside of standing screw, by the locating piece fixed connecting rod of hold-doun nut central authorities, therefore do not have the constant mobile situation of locating piece and take place again, very simple and convenient in the use.
Description of drawings
Fig. 1 is the axonometric chart of this utility model embodiment.
Fig. 2 is the three-dimensional exploded view of this utility model embodiment.
Fig. 3 adjusts the profile of state with respect to fixed part for the standing screw of this utility model embodiment.
Fig. 4 is the user mode profile of this utility model embodiment.
Fig. 5 is the user mode axonometric chart of this utility model embodiment.
Fig. 6 is a user mode plane graph of the present utility model.
Fig. 7 is the axonometric chart of existing structure.
Fig. 8 is the three-dimensional exploded view of existing structure.
Fig. 9 is the user mode profile of existing structure.
Figure 10 is the user mode axonometric chart of existing structure.
Among the figure
10 standing screws, 100 engage threads
101 locking seats, 11 fixed parts
110 external screw threads, 111 female threads
112 smooth section, 12 location spiral shell pieces
120 external screw threads, 13 hold-doun nuts
130 female threads, 131 screws
14 locating pieces, 140 external screw threads
20 connecting rods, 30 vertebraes
40 standing screws, 41 fixed parts
42 external screw threads, 43 female threads
44 hold-doun nuts, 45 female threads
46 locating pieces, 47 external screw threads
The specific embodiment
Please referring to shown in Fig. 1 to 3, the embodiment of this utility model vertebra locking steel nail includes:
Standing screw 10, this standing screw 10 1 ends outside is provided with engage threads 100, and this end face is provided with locking seat 101, and these locking seat 101 preferable external forms are hexagonal groove;
Fixed part 11, it is simplified for the hollow that section is the U font, and this fixed part 11 is provided with external screw thread 110 in the outside, inboard then be provided with the female thread 111 that can screw togather with the engage threads 100 of standing screw 10, and this female thread 111 is provided with smooth section 112 in positon of near bottom;
Location spiral shell piece 12, this location spiral shell piece 12 are arranged in the fixed part 11 with positioning and fixing screw rod 10, are provided with the external screw thread 120 that can screw togather with the female thread 111 of fixed part 11 outside it;
Hold-doun nut 13, it is arranged on fixed part 11 outsides of standing screw 10, and its inboard is provided with the female thread 130 that can screw togather with the external screw thread 110 of fixed part 11, and central authorities are provided with screw 131;
Locating piece 14, it is arranged in the screw 131 of hold-doun nut 13, and its outside is provided with the external screw thread 140 that can screw togather with the screw 131 of hold-doun nut 13.
Please referring to Fig. 2,3 and 6, this utility model embodiment is when assembling, at first will utilize hexagon wrench's (not shown) that standing screw 10 is arranged on the vertebrae 30, again fixed part 11 and standing screw 10 are screwed togather, adjust the relative angle of fixed parts 11 and standing screw 10 by smooth section 112 after, utilize location spiral shell piece 12 to be screwed together among the fixed part 11 again and towards standing screw 10 packings with the fixing angle of standing screw 10.
Please referring to shown in Fig. 4 to 6, after the angle orientation for the treatment of fixed part 11 and standing screw 10 finishes, connecting rod 20 is arranged among the fixed part 11, and establish external screw thread 110 places that are fixed on fixed part 11 with hold-doun nut 13 spiral shells, again locating piece 14 is arranged in the screw 131 of hold-doun nut 13 and towards connecting rod 20 packings.
Because locating piece 14 of the present utility model is set directly in the screw 131 of the hold-doun nut 13 that screws togather with fixed part 11, therefore can not has influence on fixed part 11 and cause fixed part 11 to produce distortion, so locating piece 14 packing connecting rod 20 easily.
In addition, though present embodiment is that the structure of separate type describes with fixed part 11 and standing screw 10, but and the non-limiting kenel of executing in fact, this fixed part 11 and standing screw 10 also can be the structure of one, reach ease of assembly and localized purpose by the locating piece 14 in the screw 131 that is set directly at hold-doun nut 13.
Claims (4)
1. vertebra locking steel nail, it includes:
Standing screw, this standing screw one end is provided with the fixed part that section is the U font, and this fixed part outside is provided with external screw thread;
Hold-doun nut, it is arranged on the fixed part outside of standing screw, its inboard be provided with can with the female thread of the external thread spiro fastening of fixed part, central authorities are provided with screw;
Locating piece, its outside is provided with external screw thread, it is characterized in that:
Above-mentioned locating piece is arranged in the screw of hold-doun nut.
2. vertebra locking steel nail as claimed in claim 1, wherein aforesaid standing screw one end is provided with engage threads, and this end face is provided with locking seat, and this fixed part inboard is provided with the female thread that can screw togather with the locking screw thread, and inside is provided with the externally threaded location of tool, outside spiral shell piece.
3. vertebra locking steel nail as claimed in claim 2, the female thread of aforementioned fixation portion is provided with smooth section in positon of near bottom.
4. as claim 2 or 3 described vertebra locking steel nails, the set locking seat external form of the end face of this standing screw is a hexagonal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112210 CN2742931Y (en) | 2004-10-28 | 2004-10-28 | Rhachis locking steel nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112210 CN2742931Y (en) | 2004-10-28 | 2004-10-28 | Rhachis locking steel nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2742931Y true CN2742931Y (en) | 2005-11-30 |
Family
ID=35632951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420112210 Expired - Fee Related CN2742931Y (en) | 2004-10-28 | 2004-10-28 | Rhachis locking steel nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2742931Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101816587A (en) * | 2010-04-19 | 2010-09-01 | 天津正天医疗器械有限公司 | Universal pedicle screw for internal fixation of spine |
| CN103110452A (en) * | 2013-01-14 | 2013-05-22 | 史亚民 | Growth adjustable one-way nail |
| CN105232131A (en) * | 2015-11-16 | 2016-01-13 | 苏州施必牢精密紧固件有限公司 | Lock type pedicle screw |
| CN105581831A (en) * | 2015-12-24 | 2016-05-18 | 建湖县人民医院 | Novel combined type pedicle screw and rod locking system |
-
2004
- 2004-10-28 CN CN 200420112210 patent/CN2742931Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101816587A (en) * | 2010-04-19 | 2010-09-01 | 天津正天医疗器械有限公司 | Universal pedicle screw for internal fixation of spine |
| CN103110452A (en) * | 2013-01-14 | 2013-05-22 | 史亚民 | Growth adjustable one-way nail |
| CN103110452B (en) * | 2013-01-14 | 2016-01-20 | 史亚民 | Growth adjustable single is to nail |
| CN105232131A (en) * | 2015-11-16 | 2016-01-13 | 苏州施必牢精密紧固件有限公司 | Lock type pedicle screw |
| CN105581831A (en) * | 2015-12-24 | 2016-05-18 | 建湖县人民医院 | Novel combined type pedicle screw and rod locking system |
| CN105581831B (en) * | 2015-12-24 | 2017-03-15 | 建湖县人民医院 | A kind of novel combination type pedicle screw-rod locking system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |