CN101507651A - Cross locking marrow nail - Google Patents
Cross locking marrow nail Download PDFInfo
- Publication number
- CN101507651A CN101507651A CNA2009100253127A CN200910025312A CN101507651A CN 101507651 A CN101507651 A CN 101507651A CN A2009100253127 A CNA2009100253127 A CN A2009100253127A CN 200910025312 A CN200910025312 A CN 200910025312A CN 101507651 A CN101507651 A CN 101507651A
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- CN
- China
- Prior art keywords
- nail
- hole
- oblique
- interlocking
- locking
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Abstract
The invention discloses an interlocking intramedullary nail, and relates to an interlocking intramedullary nail of which the far end and the near end are provided with oblique interlocking positioning screw holes, is suitable to be used as an implanted interlocking intramedullary nail for internal fixation of fracture of femoral shaft and collum femoris and femoral shaft combined fracture, and can change the interlocking mode at any time in use, namely a standard locking mode or a reestablished locking mode. The interlocking intramedullary nail is provided with a nail shank, the nail shank is provided with the far end and the near end, and the inside of the nail shank is provided with a through hole; the near end of the nail shank is provided with two reestablished oblique interlocking nail holes and a thighbone locking oblique interlocking hole which is obliquely intersected with the center of the adjacent reestablished oblique interlocking nail hole, and outlets of the nail holes are combined into one hole; the far end of the nail shank is provided with a power pressurizing lockhole and a lockhole; skew angles between the two reestablished oblique interlocking nail holes and a central axis of the nail shank are between 48 and 52 DEG; an inclination angle between the thighbone locking oblique interlocking hole and the central axis of the nail shank is between 44 and 46 DEG; and upward inclination angle of the far end of the nail shank is between 4 and 6 DEG, and the inclination angle toward one side of the far end is between 5 and 8 DEG.
Description
Technical field
What interlocking intramedullary nail of the present invention 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
The present invention seeks to provides 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 interlocking intramedullary nail of the present invention 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.Interlocking intramedullary nail of the present invention 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 invention will be further described 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 |
|---|---|---|---|
| CNA2009100253127A CN101507651A (en) | 2009-03-20 | 2009-03-20 | Cross locking marrow nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100253127A CN101507651A (en) | 2009-03-20 | 2009-03-20 | Cross locking marrow nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101507651A true CN101507651A (en) | 2009-08-19 |
Family
ID=41000297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100253127A Pending CN101507651A (en) | 2009-03-20 | 2009-03-20 | Cross locking marrow nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101507651A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272498A (en) * | 2017-12-29 | 2018-07-13 | 常州市康辉医疗器械有限公司 | A kind of intramedullary nail and its distal locking nail sighting system |
| CN111568523A (en) * | 2020-06-19 | 2020-08-25 | 河北春立航诺新材料科技有限公司 | PFNA intramedullary nail with small radian |
-
2009
- 2009-03-20 CN CNA2009100253127A patent/CN101507651A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108272498A (en) * | 2017-12-29 | 2018-07-13 | 常州市康辉医疗器械有限公司 | A kind of intramedullary nail and its distal locking nail sighting system |
| CN111568523A (en) * | 2020-06-19 | 2020-08-25 | 河北春立航诺新材料科技有限公司 | PFNA intramedullary nail with small radian |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090819 |