CN2172096Y - One-side angled external fixer for thighbone thick position fracture - Google Patents
One-side angled external fixer for thighbone thick position fracture Download PDFInfo
- Publication number
- CN2172096Y CN2172096Y CN 93241092 CN93241092U CN2172096Y CN 2172096 Y CN2172096 Y CN 2172096Y CN 93241092 CN93241092 CN 93241092 CN 93241092 U CN93241092 U CN 93241092U CN 2172096 Y CN2172096 Y CN 2172096Y
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- fixed bar
- holes
- universal joint
- femur
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Abstract
The utility model relates to a one-side angled external fixation device for intertrochanter fracture of a femur. An upper fixing rod (1) and a lower fixing rod (2) are connected together by a universal joint (3) which is provided with a lengthener (4); oblique holes (5) are drilled on the upper fixing rod, oblique thread needles (7) and (8) are arranged in the oblique holes and fixed by a fixing bolt (9); vertical holes (6) are drilled on the lower fixing rod (2), and vertical thread needles (10) are arranged in the vertical holes and fixed by a fixing bolt (11). The utility model relates to the technical field of medical instruments, and is suitable for bone surgery. The utility model has the characteristics of simple structure, convenient operation, stability and reliability.
Description
This utility model belongs to the external fixer that orthopaedics is cured intertrochanteric fracture of the femur, relates to technical field of medical instruments.
Intertrochanteric fracture of the femur is common clinically lower limb body fracture, and traditional Therapeutic Method is many based on traction and internal fixation.The bed rest time of bone traction is longer, can cause various complications; Internal fixation operation is then big because of wound, and operating time is long, be difficult to be accepted by the part patient, and owing to the operation local blood fortune of the time fracturing suffers that partial destruction has influenced the healing of fracture.At present, be the treatment limb fracture both at home and abroad, the disconnected mutually new technique of external fixation device, the new patent of having occurred:, also relatively more rare about the external fixation device of treatment intertrochanteric fracture of the femur as " derrick formula spininess external fixator " and 9321059.6 utility models known technologies such as " phalanges extension holders ".Though above-mentioned known technology has overcome the drawback that the part internal fixation causes, but still exist many deficiencies to locate, mainly be: complex structure, operation inconvenience, particularly be not suitable for the fixing of intertrochanteric fracture of the femur, lack enough stability again, patient and doctor are difficult to accept, and are unfavorable for the recovery of patient's early ambulant and function thereof.
This practical purpose just provides a kind of simple in structure, the external fixator that is particularly suitable for intertrochanteric fracture of the femur that easy to operate, reliable and stable, patient and doctor are easy to accept.
For achieving the above object, this utility model mainly reaches by following measure:
One-sided angled intertrochanteric fracture of the femur external fixator mainly is made up of last fixed bar (1), following fixed bar (2), universal joint (3), extender (4) and screw needle (12).
To go up fixed bar (1) and following fixed bar (2) couples together with universal joint (3), and at the last extender (4) of installing of universal joint (3), go up rat holing (5) at last fixed bar (1), oblique screw needle (7) (8) is installed, fastening with set bolt (9), infra fixed bar (2) is gone up brill upright opening (6) vertical screw needle (10) is installed, and is fastening with set bolt (11).
This utility model can also reach by other measures:
Not equidistant rat holing is (5) 4 on last fixed bar (1), and φ 2 * 4, are respectively with axis angle: 40 ° in two holes, and (6) 5 of upright openings are not equidistantly bored in 51 ° in two holes on the infra fixed bar (2), and φ 2 * 5.
According to the following characteristics that the utlity model has that above measure realized:
1, structure is further simplified, and in fact has only a fixed bar, and four screw needles can be realized the function of external fixator.
2, flexible and convenient operation owing to installed universal joint and extender additional, can adapt to the bone shape of different lower limb shapes and varying length.
3, because last fixed bar institute rat holing is 40 ° and 51 °, make two screw needles that are installed in the hole that one about 10 ° angle be arranged each other, make two needle sets that the effect of mutual restriction be arranged, increased stability.
Be the explanation of accompanying drawing of the present utility model and drawing below:
Accompanying drawing 1: the front view that is the intertrochanteric fracture of the femur external fixator;
Accompanying drawing 2: the vertical view that is the intertrochanteric fracture of the femur external fixator;
Accompanying drawing 3: be the intertrochanteric fracture of the femur external fixator
The front view of stricture of vagina pin.
(1) screw needle straight hole under screw needle inclined hole, (6) is gone up in fixed bar, (3) universal joint, (4) extender, (5) down, screw needle, (9) set bolt, (10) screw needle, (11) set bolt, (12) screw needle are down gone up in (7) (8) to go up fixed bar, (2).
Below in conjunction with drawings and Examples to this utility model detailed narration of making comparisons:
Last fixed bar (1) φ 18 rustless steel car systems, following fixed bar (2) φ 20 rustless steel car systems, fixed bar couples together with universal joint (3) up and down, can be movable up and down arbitrarily angled, when needing suitable stretching, regulate with the extender (4) that is installed on the universal joint (3), on last fixed bar (1), equidistantly do not bore four inclined holes (5), wherein two holes and axis angle are 40 °, two holes are 51 °, install screw needle (7), (8) in two holes, and are fastening with set bolt (9).Screw needle (12) prepares some of length 200mm-300mm with φ 2 rustless steels, and an end of screw needle adds the fine thread of IM2 * 50.Infra fixed bar (2) is gone up not equidistant 5 of vertical drilling (6), and the vertical screw needle (10) down of installing is fastening with set bolt (11).Operational approach is as follows:
Under X line perspective, make fracture end reset satisfied after, the 3-5cm place screws in to the femoral head direction along the neck of femur major axis and goes up screw needle (7) under femoral bone tuberosity, this pin and femoral shaft are about 40 degree angles, with this pin is benchmark, the 2-3cm place screws in another screw needle (8) above it, this pin and femoral shaft are about 51 ° of angles, about 10 ° of two pin differential seat angles.Two backshank ends are inserted in respectively in the inclined hole (5) of fixed bar, the bolt that is tightened (9) is fixed pin.Screw in two parallel thread pins (10) in femoral shaft stage casing outside vertical, two needle tips pass key offside cortex 2-3mm place, and pin spacing 3-5cm goes into two needle guards in the upright opening (6) of following fixed bar (2), and is fastening with set bolt (11).At this moment, four screw needle one ends screw in femur, and the other end is fastened on the fixed bar, has been linked to be a complete steelframe fixed system, has realized one-sided angled intertrochanteric fracture of the femur external fixator.
Claims (2)
1, a kind of one-sided angled intertrochanteric fracture of the femur external fixator, mainly form by last fixed bar (1), following fixed bar (2), universal joint (3), extender (4) and screw needle (12), it is characterized in that: will go up fixed bar (1) and following fixed bar (2) couples together with universal joint (3), and at the last extender (4) of installing of universal joint (3), rat holing on last fixed bar (5), oblique screw needle (7) (8), fastening with set bolt (9) is installed, go up brill upright opening (6), vertical screw needle (10) is installed in following fixed bar (2), fastening with set bolt (11).
2, according to the described one-sided angled intertrochanteric fracture of the femur external fixator of claim 1, it is characterized in that: on last fixed bar (1), equidistantly do not hole (5) 4, φ 2 * 4, be respectively with axis angle: 40 ° in two holes, 51 ° in two holes, equidistant vertical drilling is (6) 5 on following fixed bar (2), and φ 2 * 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241092 CN2172096Y (en) | 1993-10-09 | 1993-10-09 | One-side angled external fixer for thighbone thick position fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241092 CN2172096Y (en) | 1993-10-09 | 1993-10-09 | One-side angled external fixer for thighbone thick position fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2172096Y true CN2172096Y (en) | 1994-07-20 |
Family
ID=33815160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93241092 Expired - Fee Related CN2172096Y (en) | 1993-10-09 | 1993-10-09 | One-side angled external fixer for thighbone thick position fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2172096Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599966A (en) * | 2012-04-17 | 2012-07-25 | 上海市奉贤区中心医院 | External fixer for femur intertrochanteric fracture |
-
1993
- 1993-10-09 CN CN 93241092 patent/CN2172096Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102599966A (en) * | 2012-04-17 | 2012-07-25 | 上海市奉贤区中心医院 | External fixer for femur intertrochanteric 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 |