CN2588950Y - Condylar fracture intramedullary nail with lock - Google Patents
Condylar fracture intramedullary nail with lock Download PDFInfo
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- CN2588950Y CN2588950Y CN 02258048 CN02258048U CN2588950Y CN 2588950 Y CN2588950 Y CN 2588950Y CN 02258048 CN02258048 CN 02258048 CN 02258048 U CN02258048 U CN 02258048U CN 2588950 Y CN2588950 Y CN 2588950Y
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- nail
- locking
- lock
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- utility
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Abstract
The utility model discloses an intramedullary nail with a lock. The utility model is capable of treating fracture which spreads to a condylar part. The intramedullary nail with a lock is composed of a main nail and a locking nail, wherein, the main nail is provided at least two locking nail holes, and the central lines of the locking nail holes which are spatially crossed with each other into a specified angle are not positioned on the same plane. The utility model has the advantages that fracture fixing effect is favorable, mechanic performance of the main nail is reasonable, the manipulation of an operation is convenient, the structure of the utility model is simple, and the locking nail is enabled to be accompanied with the double effects in fixing and locking. The utility model is widely suitable for treating fractures, such as thighbone, tibia, etc. which spreads to the condylar part by an operation.
Description
Technical field:
This utility model relates to a kind of medical surgical apparatus, the particularly improvement of orthopaedics intramedullary nail with lock.
Background technology:
Along with the fast development of transportation and increasing of mankind's activity, the incidence rate of all kinds of fracture obviously improves, and new fractures method also constantly occurs thereupon.The steel plate internal fixation is present comparatively general fracture fixation method, and this method has fixing reliable than external fixation, the ideal characteristics of prognosis, but because steel plate is eccentric fixing, constant intensity is not high, and postoperative disunion rate is higher relatively, causes the example of internal fixation failure to happen occasionally clinically yet.In order to overcome above-mentioned defective, intramedullary pin and intramedullary nail with lock have progressively appearred on the fractures, and the appearance of intramedullary nail with lock makes fracture fixation more stable, and prevents odd-shaped generations such as fracture rotation, cripetura effectively, is more conducive to closed procedure.The intramedullary nail with lock that uses is in main nail end one or two locking nail hole to be set at present, when locking nail hole is two, the center of two locking nail holes is in the same plane, pinning passes locking nail hole and reaches the main effect of following closely of locking, this intramedullary pin is only applicable to apart from the fractures more than the 6～10cm of condyle top, and for the fracture that involves in bone condyle end 6～10cm scope, must should shield auxiliary internal fixation earlier and handle condyle portion fracture (as lag screw etc.), after making it anatomical reduction, can insert the intramedullary pin locking, not only operation technique is very complicated, must possess certain technical merit, and when the fracture face be coronalplane or during for the comminuted fracture of multi-section, pinning can not be taken into account the dual function that the nail locking was fixed and lead to the bone piece, pinning is located on or near that fracture can not be fixed or it is not firm to fix.
Summary of the invention:
The purpose of this utility model is in order to overcome above-mentioned the deficiencies in the prior art, and provides a kind of operation technique convenient, and is simple in structure, has treating of locking and fixation concurrently and involves the intramedullary nail with lock that condyle portion fractures.
In order to achieve the above object, intramedullary nail with lock of the present utility model is made up of main nail and the main locking nail hole that nails on, and described main nail end has two locking nail holes at least, and the locking nail hole centrage spatially intersects mutually.
After adopting said structure, the main nail of intramedullary pin is to effective fixed while of key section, intramedullary pin near-end pinning can directly be screwed into ankle bone piece according to the fracture state again, promptly play the bone piece fixation of lag screw, locking action to main nail is arranged again, have fixing and lock function concurrently, not only solved the problem that is difficult to use intramedullary nail with lock when fracture involves condyle portion, expand the scope of application of intramedullary pin, and given full play to pinning usefulness; Also because condyle portion bone piece is directly to be fixed on main nailing on by locking, avoided the bone piece to have formed stable stress frame by the indirect defectives such as stressed shakiness that exist continuously of other staples, fixed effect is better; Two locking nail holes intersect mutually, make intramedullary pin integral body become frame structure, also help keeping the static strength and the fatigue strength of main nail.
Description of drawings:
Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.
Fig. 1 is the front view that this utility model treatment involves the intramedullary nail with lock of condyle portion fracture;
Fig. 2 is the amplification view of the A-A section of structure intramedullary nail with lock shown in Figure 1.
The specific embodiment:
Portion's fracture intramedullary nail with lock of Fig. 1, structure shown in Figure 2, be used for fracture of the femoral condyle, its main nail 2 long 30cm, external diameter is 16mm, material is a rustless steel, at an end of leading nail 2 two locking nail holes 1 is arranged, and this locking nail hole 1 is 4mm for manhole, diameter, the position of locking nail hole is selected in the 0-3cm scope as the case may be, and locking nail hole 1 centrage spatially is crossed as 90 degree mutually; When being used for fracture of tibial condyle, locking nail hole 1 centrage spatially also is crossed as 90 degree mutually.Certain above-mentioned intersecting angle is not limited to 90 degree, also can determine as the case may be.The other end of main nail also has one or two locking nail hole that is used for fixing main nail.Main nail and pinning material also are not limited to stainless steel material, can also adopt materials such as titanium alloy chrome-cobalt alloy, and corresponding adjustment also can be done as the case may be in the quantity of locking nail hole and position.During operation: 1, condyle of femur section fracture: appear recessed preceding partially perforate between knee joint, the reduction of the fracture, knee joint bone condyle, expand marrow insertion condyle portion intramedullary pin, by the corollary apparatus fixing hole, place two pieces of intersection pinnings by lockhole respectively, pinning is oblique back to ectocondyle from interior condyle the place ahead respectively; Oblique back is to interior condyle rear from ectocondyle the place ahead.Lock key portion pinning again.2, fracture of tibial condyle: open patellar ligament, expand marrow, put condyle portion intramedullary pin, the samely intersect to left condyle rear and right condyle rear through the tibia condyle from the place ahead respectively, lock key portion pinning again by lockhole in the perforate of tibial tubercle rear.
Claims (4)
1, a kind of condyle portion fracture intramedullary nail with lock is made up of the locking nail hole (1) on main nail (2) and the main nail (2), it is characterized in that: described main (2) end of following closely has two locking nail holes (1) at least, and the centrage of locking nail hole (1) is intersection mutually spatially.
2, intramedullary nail with lock according to claim 1 is characterized in that: mutual intersecting angle is 90 degree to the centrage of locking nail hole (1) in the space.
3, intramedullary nail with lock according to claim 1 is characterized in that: locking nail hole (1) is positioned at main nail (2) end 0-3cm scope.
4, intramedullary nail with lock according to claim 1 and 2 is characterized in that: described locking nail hole (1) is a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258048 CN2588950Y (en) | 2002-10-25 | 2002-10-25 | Condylar fracture intramedullary nail with lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258048 CN2588950Y (en) | 2002-10-25 | 2002-10-25 | Condylar fracture intramedullary nail with lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2588950Y true CN2588950Y (en) | 2003-12-03 |
Family
ID=33725872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02258048 Expired - Fee Related CN2588950Y (en) | 2002-10-25 | 2002-10-25 | Condylar fracture intramedullary nail with lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2588950Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006133643A1 (en) * | 2005-06-15 | 2006-12-21 | Yijing Yang | An intramedullary nail |
| CN107343813A (en) * | 2016-05-06 | 2017-11-14 | 天津正天医疗器械有限公司 | Ilium intramedullary nail and sacrum ilium fixing device |
| CN108378913A (en) * | 2018-04-04 | 2018-08-10 | 上海市同济医院 | Improve proximal femoral nail |
-
2002
- 2002-10-25 CN CN 02258048 patent/CN2588950Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006133643A1 (en) * | 2005-06-15 | 2006-12-21 | Yijing Yang | An intramedullary nail |
| CN107343813A (en) * | 2016-05-06 | 2017-11-14 | 天津正天医疗器械有限公司 | Ilium intramedullary nail and sacrum ilium fixing device |
| CN108378913A (en) * | 2018-04-04 | 2018-08-10 | 上海市同济医院 | Improve proximal femoral nail |
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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 |