CN201861740U - Novel proximal femoral intramedullary nail - Google Patents
Novel proximal femoral intramedullary nail Download PDFInfo
- Publication number
- CN201861740U CN201861740U CN2010206160393U CN201020616039U CN201861740U CN 201861740 U CN201861740 U CN 201861740U CN 2010206160393 U CN2010206160393 U CN 2010206160393U CN 201020616039 U CN201020616039 U CN 201020616039U CN 201861740 U CN201861740 U CN 201861740U
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- nail
- neck
- hole
- novel
- staple
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Abstract
The utility model relates to a novel proximal femoral intramedullary nail and aims at filling a gap of the prior art and providing a novel proximal femoral intramedullary nail which is simple and firm, and convenient in installation. The novel proximal femoral intramedullary nail comprises a main intramedullary nail, a femoral head and neck fixing nail and an interlocking nail, wherein the upper portion of the main intramedullary nail is provided with an inclined hole, the lower portion of the main intramedullary nail is provided with an interlocking nail hole, the femoral head and neck fixing nail is arranged inside the inclined hole, and the interlocking nail is positioned inside the interlocking nail hole. The femoral head and neck fixing nail is further provided with a secondary nail hole and a secondary nail, and an included angle which ranges from 9 degrees to 11 degrees is formed by the axis of the secondary nail and the axis of the femoral head and neck fixing nail. After the secondary nail is knocked in, a certain included angel is formed to effectively avoid rotation of a femoral head and neck, and fixation is firmer, osteonecrosis of the femoral head is reduced, and rates of non-union of bone and coxa vara are decreased. The novel proximal femoral intramedullary nail has the advantages of being simple and firm, convenient in operation, small in a wound, and suitable for patients with an intertrochanteric fracture of femur and for young patients with a femoral neck fracture.
Description
Technical field
This utility model relates to a kind of novel PFN.
Background technology
Intertrochanteric fracture of the femur is common in person in middle and old age's fracture patient, adopts PFN to fix usually.Patient's postoperative can not carry out early rehabilitation training, otherwise occurs femur head and neck coxa vara phenomenon easily, even because of malunion, and stay the limping sequela to the patient.
On August 18th, 2010, disclosed, Granted publication number disclosed a kind of intertrochanteric fracture marrow inner fixing device for the Chinese utility model patent of CN201551384U.This device comprises that main nail, femur head and neck forcing screw and distal femur inter-locking screw (are equivalent to main nail, femur head and neck staple and pinning in the marrow of the present utility model respectively, it is characterized in that having set up the bigelow's septum supporting screw, this bigelow's septum supporting screw forms stable triangular structure with main nail, femur head and neck forcing screw, more reinforces.Though this device itself is relatively firmly, complex structure, fixing inconvenience.
The utility model content
The technical problems to be solved in the utility model is how to fill up the above-mentioned blank of prior art, and a kind of novel PFN simply firm, easy for installation is provided.
For solving the problems of the technologies described above, this novel PFN comprises main nail, femur head and neck staple and pinning in the marrow, the main portion of nailing on has inclined hole in its marrow being invaded by pathogen, the bottom has locking nail hole, described femur head and neck staple is arranged in the inclined hole, and described pinning is arranged in the locking nail hole, it is characterized in that: also have son nail hole on the described femur head and neck staple, and be provided with son nail, and should son nail axis and femur head and neck staple axis between angle α=9～11 °.After squeezing into the son nail, form certain angle, can effectively prevent the rotation of femur head and neck, fixing more firm, reduce femur head necrosis, the appearance probability of bone does not connect and coxa vara.
As optimization, described son nail hole is a screw hole, and described son nail which is provided with respective threaded for lock screw.So design, fixation.
As optimization, described femur head and neck staple comprises and revolves nail portion and overcoat, and described outer putting is provided with vertically fixedly lug, nib, has three groups of longitudinal register grooves on the described inclined hole, respectively correspondence take back, take over, three kinds of positioning states placed in the middle.So design makes internal fixation system more meet the anatomical features of femoral neck shaft angle, fixation, and also easy and simple to handle.
This novel PFN has advantages such as simply firm, easy to operate, that wound is little, is fit to intertrochanteric fracture of the femur and young fracture of femoral neck patient and uses.
Description of drawings
Below in conjunction with accompanying drawing this novel PFN is described further:
Fig. 1 is the schematic perspective view of this novel PFN;
Fig. 2 is the front elevational schematic of the interior main nail of marrow of this novel PFN;
Fig. 3 be in the marrow shown in Figure 2 main nail A-A to cross-sectional view;
Fig. 4 is the structural representation of the son nail of this novel PFN;
Fig. 5 is the cross-sectional view (dissecing along son nail axially bored line and inclined hole axis) of the femur head and neck staple of this novel PFN;
Fig. 6 is the schematic top plan view of son nail shown in Figure 4;
Fig. 7 is the schematic top plan view of femur head and neck staple shown in Figure 5.
Among the figure: 1 for main nail in the marrow, 2 for femur head and neck staple, 3 for pinning, 4 for inclined hole, 5 for locking nail hole, 6 for son nail hole, 7 for the son nail, 8 for revolve nail portion, 9 for overcoat, 10 for vertically fixedly lug, nib, 11 follow closely angle between axis and the femur head and neck staple axis for son for longitudinal register groove, α.
The specific embodiment
Embodiment one: shown in Fig. 1-7, this novel PFN comprises main nail 1, femur head and neck staple 2 and pinning 3 in the marrow, main nail 1 top has inclined hole 4 in its marrow being invaded by pathogen, main nail 1 bottom has locking nail hole 5 in the marrow, described femur head and neck staple 2 is arranged in the inclined hole 4, described pinning 3 is arranged in the locking nail hole 5, it is characterized in that: also have son nail hole 6 on the described femur head and neck staple 2, and be provided with son nail 7, and should son the axis of nail 7 and angle α=9～11 between femur head and neck staple 2 axis °, preferred 10 °.Described son nail hole 6 is a screw hole, and described son nail 7 is a lock screw, which is provided with respective threaded.
Described femur head and neck staple 2 comprises and revolves nail portion 8 and overcoat 9, and described overcoat 9 is provided with the vertically fixing lug, nib 10 of two symmetrical distributions, has three groups of longitudinal register grooves 11 on the described inclined hole 4, respectively correspondence take back, take over, three kinds of positioning states placed in the middle.
During use, the described nail portion 8 of revolving is passed inclined hole 4 and squeezes into the femur head and neck, put overcoat 9 again, make on the overcoat 9 vertically fixedly the suitable longitudinal register groove 11 of lug, nib 10 insertions get final product.
In the time of need taking back fixedly, take back above making two vertically fixedly lug, nibs 10 inserting respectively longitudinal register groove 11 and the below longitudinal register groove 11 that takes over gets final product;
In the time of need taking over fixedly, take over above making two vertically fixedly lug, nibs 10 inserting respectively longitudinal register groove 11 and the below longitudinal register groove 11 of taking back gets final product;
Need between two parties fixedly the time, longitudinal register groove 11 and centered beneath longitudinal register groove 11 get final product between two parties above making two vertically fixedly lug, nibs 10 inserting respectively.
Claims (3)
1. novel PFN, comprise main nail, femur head and neck staple and pinning in the marrow, the main portion of nailing on has inclined hole in its marrow being invaded by pathogen, the bottom has locking nail hole, described femur head and neck staple is arranged in the inclined hole, and described pinning is arranged in the locking nail hole, it is characterized in that: also have son nail hole on the described femur head and neck staple, and be provided with son nail, and should son nail axis and femur head and neck staple axis between angle α=9～11 °.
2. novel PFN as claimed in claim 1 is characterized in that: described son nail hole is a screw hole, and described son nail which is provided with respective threaded for lock screw.
3. novel PFN as claimed in claim 1 or 2, it is characterized in that: described femur head and neck staple comprises and revolves nail portion and overcoat, described outer putting is provided with vertically fixedly lug, nib, have three groups of longitudinal register grooves on the described inclined hole, respectively correspondence take back, take over, three kinds of positioning states placed in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206160393U CN201861740U (en) | 2010-11-20 | 2010-11-20 | Novel proximal femoral intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206160393U CN201861740U (en) | 2010-11-20 | 2010-11-20 | Novel proximal femoral intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201861740U true CN201861740U (en) | 2011-06-15 |
Family
ID=44132908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206160393U Expired - Fee Related CN201861740U (en) | 2010-11-20 | 2010-11-20 | Novel proximal femoral intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201861740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105011998A (en) * | 2015-08-19 | 2015-11-04 | 赵旭 | Wing-shaped intramedullary nail |
| CN107198563A (en) * | 2017-06-01 | 2017-09-26 | 成都贝施美生物科技有限公司 | A kind of fractured near end of thighbone connector |
-
2010
- 2010-11-20 CN CN2010206160393U patent/CN201861740U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105011998A (en) * | 2015-08-19 | 2015-11-04 | 赵旭 | Wing-shaped intramedullary nail |
| CN107198563A (en) * | 2017-06-01 | 2017-09-26 | 成都贝施美生物科技有限公司 | A kind of fractured near end of thighbone connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20121120 |