CN201361104Y - Interlocking intramedullary nail - Google Patents
Interlocking intramedullary nail Download PDFInfo
- Publication number
- CN201361104Y CN201361104Y CNU2009200360548U CN200920036054U CN201361104Y CN 201361104 Y CN201361104 Y CN 201361104Y CN U2009200360548 U CNU2009200360548 U CN U2009200360548U CN 200920036054 U CN200920036054 U CN 200920036054U CN 201361104 Y CN201361104 Y CN 201361104Y
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- CN
- China
- Prior art keywords
- nail
- locking
- hole
- femur
- skew
- 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 an interlocking intramedullary nail, in particular to an interlocking intramedullary nail with skew locking bit bolt holes on both far and near end, which is suitable to be the internal fixed and implanted interlocking intramedullary nail for fracture of femoral shaft as well as combined type fracture of a femoral neck and a femoral shaft, and when in use, the interlocking mode can be changed at any time, namely the standard locking mode rebuilding locking mode. The utility model is provided with a nail rod which is arranged with a near end and a far end, a through hole is arranged in the nail rod, two rebuilding skew locking nail holes and a femur locking nail skew lock hole are arranged at the near end of the nail rod, the femur locking nail skew lock hole crosses obliquely the center of the near rebuilding skew locking nail hole, and are combined into a hole on the outlet of the nail hole, and a dynamic compression locking nail hole and a locking nail hole are arranged at the far end of the nail rod. The skew angle of the two rebuilding skew locking nail holes and the central axis of the nail rod ranges from 48 to 52 degrees. The oblique angle of the femur locking nail skew lock hole and the central axis of the nail rod ranges from 44 to 46 degrees. The inclined angle of the far end of the nail rod extending upward ranges from 4 to 6 degrees, and the inclined angle toward one side ranges from 5 to 8 degrees.
Description
Technical field
What this utility model interlocking intramedullary nail related to is the interlocking intramedullary nail that a kind of far and near end has oblique locking bit screw hole, be suitable for doing fracture of shaft of femur, neck of femur and femoral shaft combination type fracture internal fixation and implant interlocking intramedullary nail, can change the interlocking pattern at any time in use, i.e. standard locking mode or reconstruction locking mode.
Background technology
The internal fixation implant is the standard femoral interlocking intramedullary nail during fracture of shaft of femur operation at present, adopts special-purpose operating theater instruments to carry out standard femur locking mode.Neck of femur and femur are simultaneously during fracture operation, adopt and rebuild interlocking intramedullary nail, need adopt another kind of special-purpose operating theater instruments to carry out femur locking and burst neck reconstruction locking, rebuild interlocking intramedullary nail and be implanted to femoral bone cavitas medullaris, damage neck of femur easily even cause cracking from pears dress nest.And need to open bigger otch on osteoderm, time ratio is long in the operation process, brings unnecessary misery to the patient.
Summary of the invention
This utility model purpose is to provide a kind of interlocking intramedullary nail at above-mentioned weak point, the interlocking intramedullary nail that has oblique locking bit screw hole at the distance end, be suitable for doing fracture of shaft of femur, neck of femur and femoral shaft combination type fracture internal fixation and implant interlocking intramedullary nail, can change the interlocking pattern at any time during use, i.e. standard locking mode or reconstruction locking mode.
Interlocking intramedullary nail takes following scheme to realize: interlocking intramedullary nail has the nail bar, the nail bar is provided with near-end and far-end, be provided with through hole in the nail bar, the near-end of nail bar is provided with two and rebuilds oblique locking nail hole and a femur pinning oblique lockhole, rebuild the oblique locking nail hole for two, be used to rebuild neck of femur, a femur pinning oblique lockhole is used for fixing fracture of shaft of femur.Two are rebuild the oblique locking nail hole is 48～52 ° with nail bar central axis skew angle, femur pinning oblique lockhole and close reconstruction oblique locking nail hole center skewed crossing, nail hole exits place is merged into a hole, and femur pinning oblique lockhole is 44～46 ° with nail bar central axis oblique angle.
The far-end of nail bar is provided with power pressurization locking nail hole and locking nail hole, and power pressurization locking nail hole is the Long Circle locking nail hole, and the power pressurization is provided, and locking nail hole is a circular port.The far-end of nail bar angle of inclination upward is 4～6 °, and is 5～8 ° to the lopsidedness angle, is convenient in the implanted femur pulp cavity.Be provided with apparatus connection locating notch at the near-end of following closely bar and be connected screw with apparatus.
When interlocking intramedullary nail uses, connect the locking bar dress by apparatus and be inserted on the aiming appliance, in patient's femoral greater trochanter implanted femur pulp cavity, the far-end locking that will follow closely bar by self-locking nail respectively has on the femur, and the proximal lock of nail bar fixes on femur or the neck of femur.
Reasonable in design, the compact conformation of this utility model interlocking intramedullary nail can change the interlocking pattern at any time and is the standard locking mode or rebuild locking mode, utilizes operating theater instruments, can finish resetting and implanting intramedullary pin of fracture under less invasive techniques.This utility model interlocking intramedullary nail since nail bar far-end upward the angle of inclination be 4～6 °, and it is 5～8 ° to the lopsidedness angle, be convenient in patient's femoral greater trochanter implanted femur pulp cavity, improved operation, change the date to greater trochanter is implanted to femoral bone cavitas medullaris by traditional pears dress nest implantation, make operation more simple, quick.Owing to only need in the operation on osteoderm, to open less otch, and can shorten operating time, can reduce the patient suffering, the back rehabilitation of being convenient to perform the operation.
Description of drawings
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is the interlocking intramedullary nail front view.
Fig. 2 is the interlocking intramedullary nail vertical view.
Fig. 3 is the interlocking intramedullary nail upward view.
The specific embodiment
With reference to accompanying drawing 1～3, interlocking intramedullary nail has nail bar 6, nail bar 6 is provided with near-end 7 and far-end 11, be provided with through hole 5 in the nail bar 6, the near-end 7 of nail bar 6 is provided with two and rebuilds oblique locking nail hole 4 and 3, two reconstructions of femur pinning oblique lockhole oblique locking nail hole 4, is used to rebuild neck of femur, a femur pinning oblique lockhole 3 is used for fixing fracture of shaft of femur.Two are rebuild oblique locking nail hole 4 is 48～52 ° with nail bar central axis skew angle a, femur pinning oblique lockhole 3 and close reconstruction oblique locking nail hole 4 center skewed crossings, nail hole exits place is merged into a hole 9, and femur pinning oblique lockhole 3 is 44～46 ° with nail bar central axis oblique angle b.
The far-end 8 of nail bar 6 is provided with power pressurization locking nail hole 11 and locking nail hole 10, and power pressurization locking nail hole 11 is the Long Circle locking nail hole, and the power pressurization is provided, and locking nail hole 10 is a circular port.The far-end 8 of nail bar 6 angle of inclination c upward is 4～6 °, and is 5～8 ° to lopsidedness angle d, is convenient in the implanted femur pulp cavity.Be provided with apparatus connection locating notch 1 at the near-end 7 of following closely bar 6 and be connected screw 2 with apparatus.
Claims (6)
1, a kind of interlocking intramedullary nail, it is characterized in that having the nail bar, the nail bar is provided with near-end and far-end, be provided with through hole in the nail bar, the near-end of nail bar is provided with two and rebuilds oblique locking nail hole and a femur pinning oblique lockhole, femur pinning oblique lockhole and close reconstruction oblique locking nail hole center skewed crossing, nail hole exits place is merged into a hole, and the far-end of nail bar is provided with power pressurization locking nail hole and locking nail hole.
2, interlocking intramedullary nail according to claim 1 is characterized in that described two reconstruction oblique locking nail holes and nail bar central axis skew angle a are 48～52 °.
3, interlocking intramedullary nail according to claim 1 is characterized in that femur pinning oblique lockhole and nail bar central axis oblique angle b are 44～46 °.
4, interlocking intramedullary nail according to claim 1, the far-end that it is characterized in that described nail bar angle of inclination c upward is 4～6 °, and is 5～8 ° to lopsidedness angle d.
5, interlocking intramedullary nail according to claim 1 is characterized in that being provided with apparatus connection locating notch at the near-end of following closely bar is connected screw with apparatus.
6, interlocking intramedullary nail according to claim 1 is characterized in that described power pressurization locking nail hole is the Long Circle locking nail hole, and locking nail hole is a circular port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200360548U CN201361104Y (en) | 2009-03-20 | 2009-03-20 | Interlocking intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200360548U CN201361104Y (en) | 2009-03-20 | 2009-03-20 | Interlocking intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201361104Y true CN201361104Y (en) | 2009-12-16 |
Family
ID=41471759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200360548U Expired - Fee Related CN201361104Y (en) | 2009-03-20 | 2009-03-20 | Interlocking intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201361104Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN108771561A (en) * | 2018-07-09 | 2018-11-09 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail |
| CN109480985A (en) * | 2018-12-05 | 2019-03-19 | 常州市康辉医疗器械有限公司 | A kind of cross locking marrow nail of distally taper location hole |
-
2009
- 2009-03-20 CN CNU2009200360548U patent/CN201361104Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742811A (en) * | 2018-07-09 | 2018-11-06 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail external member |
| CN108771561A (en) * | 2018-07-09 | 2018-11-09 | 常州华森医疗器械有限公司 | A kind of anti-rotation type intramedullary nail |
| CN108742811B (en) * | 2018-07-09 | 2020-06-19 | 常州华森医疗器械有限公司 | Anti-rotation intramedullary nail suite |
| CN109480985A (en) * | 2018-12-05 | 2019-03-19 | 常州市康辉医疗器械有限公司 | A kind of cross locking marrow nail of distally taper location hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20180320 |