CN2207151Y - Inner fixer for fracture of thighbone - Google Patents
Inner fixer for fracture of thighbone Download PDFInfo
- Publication number
- CN2207151Y CN2207151Y CN 94246694 CN94246694U CN2207151Y CN 2207151 Y CN2207151 Y CN 2207151Y CN 94246694 CN94246694 CN 94246694 CN 94246694 U CN94246694 U CN 94246694U CN 2207151 Y CN2207151 Y CN 2207151Y
- Authority
- CN
- China
- Prior art keywords
- femur
- fracture
- intramedullary needle
- screw
- intramedullary
- 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 internal fixer for intertrochanter fracture of femur. A tubular intramedullary needle penetrates in the intramedullary cavity of femur fracture; the thick end lower part of the intramedullary needle is provided with an inclined hole, and a pressurizing screw is drilled in the femur neck by the inclined hole; the slightly thin end is provided with at least two inner pin screw holes; the inner pin screws through the inner pin screw holes connect the intramedullary needle with the femur shaft; the end of the thick end of the intramedullary needle is provided with fastening lock screws. The internal fixer has the advantages of simple structure, easy fixation, small operation wound, small range of tissue separating, quick joint motion and functional restoration, and is a better measure for treating femoral fracture.
Description
The inner fixer that uses when this utility model relates to intertrochanteric fracture of the femur.
China's past mainly takes traction earlier to use plaster fixation after 1～2 month for the treatment of intertrochanteric fracture of the femur, and the complication of this method treatment has the pain of bursting property decubital ulcer, thrombotic disease, ankylosis etc., and certain mortality rate is arranged.Use gooseneck boom nail (Jewett) afterwards instead, treatments such as many osseous pins or simple neck of femur forcing screw, still not ideal enough, nearly 10～20% mortality, show that mainly gooseneck boom nail or osseous pin withdraw from, the steel plate fracture, early stage activity down thoroughly solution yet after shortcoming, especially patients such as separation of steel plate one femoral shaft and bone does not connect perform the operation.
The purpose of this utility model be to have designed a kind of simple in structure, be easy to fix, operation wound is little, patient can active down in early days intertrochanteric fracture of the femur inner fixer.
For achieving the above object, its technical scheme realizes as follows: penetrated a tubulose intramedullary needle in the intramedullary cavity of Fracture of femur, the butt end bottom of its intramedullary needle has an inclined hole, forcing screw is to be drilled in neck of femur by this inclined hole, have at least two internal lock screw holes at thin slightly end, the internal lock screw is crossed the internal lock screw hole intramedullary needle is connected with femoral shaft, and the butt end end of intramedullary needle is equipped with fastening backing-up screw.The intramedullary needle section is generally rounded, and the centrage of butt end and thin end has an outside one-tenth angle between the two not on same centrage.
This utility model is compared with prior art fixed reliably, and operation wound is little, patient can ground be movable down in early days, follows up a case by regular visits to statistics from 31 routine patients, and patient's average hospital days is 16.6 days, bear a heavy burden down and be that average postoperative 10.4 days, fracture reach healing fully generally in 1.5～2.5 months.Adopt that this inner fixer has that dissection scope is little to organizing, little, the joint motion of damage and the fast characteristics of functional rehabilitation.
Fig. 1 is this utility model structural representation.
Accompanying drawing is a specific embodiment of the present utility model, is described further below in conjunction with accompanying drawing:
With reference to accompanying drawing, in the intramedullary cavity of Fracture of femur, penetrate a tubulose intramedullary needle 1, the butt end bottom of its intramedullary needle 1 has an inclined hole, forcing screw 2 is again to be drilled in neck of femur by this inclined hole, and intramedullary needle 1 is a tubular structure, and near-end is thick, section is rounded, thin end is thin slightly, and an outside one-tenth angle is arranged between the thickness end, and its centrage is not on the bar straight line.The screw thread of forcing screw 2 has self tapping pressurization and internal lock effect, have two internal lock screw holes on the intramedullary needle 1 thin end, internal lock screw 3 is crossed the internal lock screw hole intramedullary needle 1 is connected with femoral shaft, and lock together, have on the butt end end of intramedullary needle 1 of screw thread and be screwed into fastening backing-up screw 4, forcing screw 2 is withstood in its screw tip, prevents that forcing screw from withdrawing from.
When the intertrochanteric fracture of the femur inner fixer is installed, also need to mainly contain sight, injection-drawing out device and elasticity pulp cavity expander and constitute by complete installation and the injection-drawing out device tool of a cover.Operation must be carried out under the TV X-ray machine, patient adopts lumbar anesthesia or epidural fiber crops, the clinostatism of making even is put on the orthopedic traction bed, and closed reduction fracture under the continuous traction is during traction, make and suffer from the abundant abduction of limb, the positive side position of perspective fracture under the TV X-ray machine sees that the reduction of the fracture makes trouble limb inward turning slightly, interior receipts after satisfied, keep this position sterilization, the shop is single.Cut a 5.0cm otch on Ipsilateral femoral greater trochanter top then, under the percutaneous incision, separately tensor fasciae latae and vastus lateralis are chiseled cortical bone in the piriformis fossa place with circular bone tooth or bone awl, put into the pulp cavity that elasticity pulp cavity expander enlarges the femur marrow tuberosity part, intramedullary needle 1 is pushed in the femoral bone cavitas medullaris.Sight is installed, pierce in the neck of femur by the guide pin of sight, under the TV X-ray machine, be screwed into forcing screw 2 on neck of femur, under the help of sight, be screwed into internal lock screw 3 and fastening backing-up screw 4 equally again forcing screw, treat above-mentioned work finish errorless after, get final product sew up wound.
Claims (4)
1, a kind of intertrochanteric fracture of the femur inner fixer, it is characterized in that having penetrated a tubulose intramedullary needle (1) in the intramedullary cavity of Fracture of femur, the butt end bottom of its intramedullary needle (1) has an inclined hole, forcing screw (2) is to be drilled in neck of femur by this inclined hole, have at least two internal lock screw holes at thin slightly end, internal lock screw (3) is crossed the internal lock screw hole intramedullary needle (1) is connected with femoral shaft, and the butt end end of intramedullary needle (1) is equipped with fastening backing-up screw (4).
2, intertrochanteric fracture of the femur inner fixer according to claim 1 is characterized in that forcing screw is withstood in the tip of fastening backing-up screw.
3, intertrochanteric fracture of the femur inner fixer according to claim 1 is characterized in that forcing screw is the self tapping forcing screw.
4, intertrochanteric fracture of the femur inner fixer according to claim 1 is characterized in that intramedullary needle is a tubulose intramedullary needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246694 CN2207151Y (en) | 1994-11-22 | 1994-11-22 | Inner fixer for fracture of thighbone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246694 CN2207151Y (en) | 1994-11-22 | 1994-11-22 | Inner fixer for fracture of thighbone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207151Y true CN2207151Y (en) | 1995-09-13 |
Family
ID=33852115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246694 Expired - Fee Related CN2207151Y (en) | 1994-11-22 | 1994-11-22 | Inner fixer for fracture of thighbone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207151Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011006413A1 (en) * | 2009-07-14 | 2011-01-20 | 常州市康辉医疗器械有限公司 | Intramedullary nail fixing device for proximal femoral fracture |
-
1994
- 1994-11-22 CN CN 94246694 patent/CN2207151Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011006413A1 (en) * | 2009-07-14 | 2011-01-20 | 常州市康辉医疗器械有限公司 | Intramedullary nail fixing device for proximal femoral fracture |
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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 |