CN2309127Y - Tibia locked intramedullary nail - Google Patents
Tibia locked intramedullary nail Download PDFInfo
- Publication number
- CN2309127Y CN2309127Y CN 97237054 CN97237054U CN2309127Y CN 2309127 Y CN2309127 Y CN 2309127Y CN 97237054 CN97237054 CN 97237054 CN 97237054 U CN97237054 U CN 97237054U CN 2309127 Y CN2309127 Y CN 2309127Y
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- main body
- holes
- nail
- nail main
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Abstract
The utility model relates to a fixing therapeutic tool for the fracture of the tibia. The basic shape of a nail body of an intramedullary nail is an angle-shaped solid circle polished rod, an end is provided with an inclined shape collecting tip ball arc-shaped surface, and a far end arranged near the end is provided with two holes, wherein, the axial lines of which are basically parallel. A near end arranged near a head part is provided with two holes, wherein, the axial lines of which are basically the space nocoplanar straight lines. Bone screws can be arranged in the far end hole and the near end hole of the nail body, and a closed screw can be arranged on an inner screw hole arranged at the head part of the nail body. The utility model has the advantages of simple structure, convenient operation, firm and reliable fixing to the fracture of the tibia. No CB machine is needed, and patients and doctors can be prevented from being radiated by X-ray.
Description
This utility model relates to a kind of operating inner fixer that is used for, and is mainly used in the fixation for treatment behind the tibia miscellaneous fracture.
At present, the internal fixation of treatment fracture of tibia adopts the percussopunctator of interlocking not or the GK nail of interlocking more.Percussopunctator is a first generation intramedullary needle, and it has played the fracture fixation effect to a certain extent.But because it is a kind of intramedullary needle of not interlocking, therefore, under the situation that patient's postoperative bears a heavy burden, it twists in pulp cavity easily, and fixing is not very firm.GK nail is a kind of intramedullary pin that can interlocking, and its near-end has a screw lockhole, and far-end has two screw lockholes, is very firm for fracture fixation.During use, earlier the main body of GK nail is put into pulp cavity, drivescrew in the screw hole of its near-end then, drivescrew in two lockholes of far-end again, the operation of drivescrew must be had an X-rayed under the CB machine and be carried out on two screw lockholes of far-end, and X ray all has very big infringement to patient and the health of executing the art doctor like this.Also have, the GK nail is hollow nail, thereby the time cycle of early loading is longer.GK nail radial dimension is big, outside cross section is the SANYE blossom type, need expand marrow when not only structure is than complicated but also use.
The purpose of this utility model is, provides that a kind of structure is comparatively simple, easy to operate, the scope of application is wide, the fixing reliable fracture of tibia internal fixation interlocking intramedullary nail of clinical operation.
The technical scheme that realizes this utility model purpose is (referring to Fig. 1 to Fig. 8), this tibia interlocking intramedullary nail has nail main body (1) and bone screw (2), its construction features is, also has closed screw (3), nail main body (1) basic configuration is a dihedral filled circles polished rod, its afterbody that advances nail is provided with the oblique spherical arc shape face of receiving point, and the far-end of close afterbody is provided with the hole (12) that two axis are parallel to each other substantially; The head of nail main body (1) is provided with inner bolt hole, and closed screw (3) can screw in this inner bolt hole; The near-end of close head of nail main body (1) has two holes (11), and the axis in these two holes is the space different surface beeline substantially, and bone screw (2) can be located in the hole (12) of the hole (11) of the near-end of following closely main body (1) and far-end.
The numerical value of the angle [alpha] that above-mentioned nail main body (1) is crooked is 5～11 degree, head termination to the distance of knee is 65～75mm, the mutual relation of the axis in nail main body (1) two holes of near-end (11) is orthogonal space different surface beeline substantially, and the formed acute angle of axis in two holes of the plane, axis place in two holes of its far-end (12) and near-end (11) is 45 degree substantially, and the nose end in two holes of two holes of near-end (11) and far-end (12) all has the ream face.
The number of degrees at the α angle of above-mentioned nail main body (1) are 6～9 degree, and nail main body (1) head termination to the distance of knee is 68～72mm.
The utlity model has positive effect.This intramedullary pin is simple in structure, easy to operate, fixing solid and reliable to fracture of tibia.During use, cooperate special-purpose operating theater instruments then need under the X ray of CB machine, not perform a surgical operation, protected patient and doctor's health safety greatly, be convenient to promote.Because the bone screw of this intramedullary pin is staggered, need not expand the purpose that marrow also can reach secure fixation well in use.Therefore simplify operation process, reduced patient's infection rate.The nail main body that this intramedullary pin is arranged again is a solid hopkinson bar, Gu the time cycle of early loading can foreshorten to 15 days by 20 to 30 days.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 looks sketch map for the left side of Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 1.
Fig. 4 is the structural representation of this utility model nail main body.
Fig. 5 is the schematic top plan view of Fig. 4.
Fig. 6 is the sketch map of this utility model bone screw.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the sketch map of the closed screw of this utility model.
Below in conjunction with embodiment and accompanying drawing this utility model is further described.
Embodiment 1
See Fig. 4 and Fig. 5, be processed into the nail main body (1) of shape as shown in the figure with the medical stainless steel bar, its basic configuration is the filled circles polished rod, its head is provided with inner bolt hole, near-end near head is provided with two unthreaded holes (11), the mutual relation of the axis of two unthreaded holes is orthogonal space different surface beeline substantially, and it is 6 degree that near-end has a bent angle alpha, its numerical value, and the part of nail main body (1) afterbody is that the face of cylinder, another part are the oblique spherical arc shape face (13) of receiving point; The unthreaded hole (12) that the far-end of close afterbody has two axis to be parallel to each other substantially, and the plane, axis place in these two holes (12) is 45 degree with the formed acute angle of axis of following closely main body (1) two holes of near-end (11) substantially.
Bent angle α on the nail main body (1) designs according to Asian tibia characteristics, be generally 5～11 degree, the direction in 4 holes (11,12) of nail main body (1) far-end and near-end is designed to help installing the direction of bone screw (2), and all there is the ream face at the two ends in each hole, increase guiding trend, more helped slipping into of bone screw.
See Fig. 6 and Fig. 7, make the closed screw (3) of the bone screw of shape (2) and shape shown in Figure 8 as shown in the figure with the medical stainless steel bar.Bone screw (2) main body is the polished rod structure, and tail end is a semi-sphere, is convenient to import; Head end is provided with two sections screw threads, and this structure has increased the minimum diameter of the body of rod, thereby has improved intensity.
When this utility model uses, the rectangular indentation of nail main body (1) head is closed with the protruding collocation of the adapter sleeve of sight, pass adapter sleeve, screw in the M6 screw-threaded counterbore of nail main body (1) head, and make sight and follow closely main body (1) and fixedly connected with hanging bolt.
During operation, first separate skin and subcutaneous tissue reach marrow ligament middle part, do otch to tibial tubercle, retract patellar ligament, determine that the place ahead mid point of tibial plateau is entry point on the upper side.Punch apart from leading edge 8～10mm place at tibial plateau with arc card punch.Hold the handle on the sight, will follow closely main body (1) and insert pulp cavity through punching from otch.Afterwards, the pinning location guide is inserted handle and fixing.The distal locking nail localizer is installed on the pinning location guide, bone screw (2) can be inserted in the bone of having holed by the pinning sleeve pipe that is fixed on the distal locking nail localizer, the polished rod section of bone screw (2) is inserted in the far-end unthreaded hole (12) of nail main body (1), screw then, another root bone screw (2) is fixed on another far-end unthreaded hole (12) of nail main body (1) with same procedure.Insert 2 bone screw (2) in the bone and the polished rod section is inserted in nail main body (1) the near-end unthreaded hole (11) with similar method.Folding screws in closed screw (3) in the M6 screw-threaded counterbore of nail main body (1) head except that sighting device, implements step, operation end such as stitching again.In the operation, need not to use the CB machine, thereby make patient and doctor avoid the irradiation of X-ray line.
Claims (3)
1, a kind of tibia interlocking intramedullary nail, have nail main body (1) and bone screw (2), it is characterized in that, also has closed screw (3), nail main body (1) basic configuration is a dihedral filled circles polished rod, its afterbody that advances nail is provided with the oblique spherical arc shape face of receiving point, and the far-end of close afterbody is provided with the hole (12) that two axis are parallel to each other substantially; The head of nail main body (1) is provided with inner bolt hole, and closed screw (3) can screw in this inner bolt hole; The near-end of close head of nail main body (1) has two holes (11), and the axis in these two holes is the space different surface beeline substantially, and bone screw (2) can be located in the hole (12) of the hole (11) of the near-end of following closely main body (1) and far-end.
2, intramedullary pin according to claim 1, it is characterized in that, the numerical value of the angle [alpha] that nail main body (1) is crooked is 5～11 degree, head termination to the distance of knee is 65～75mm, the mutual relation of the axis in nail main body (1) two holes of near-end (11) is orthogonal space different surface beeline substantially, and the formed acute angle of axis in two holes of the plane, axis place in two holes of its far-end (12) and near-end (11) is 45 degree substantially, and the nose end in two holes of two holes of near-end (11) and far-end (12) all has the ream face.
3, intramedullary pin according to claim 2 is characterized in that, the number of degrees at the α angle of nail main body (1) are 6～9 degree, and nail main body (1) head termination to the distance of knee is 68～72mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237054 CN2309127Y (en) | 1997-09-11 | 1997-09-11 | Tibia locked intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237054 CN2309127Y (en) | 1997-09-11 | 1997-09-11 | Tibia locked intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2309127Y true CN2309127Y (en) | 1999-03-03 |
Family
ID=33947791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97237054 Expired - Fee Related CN2309127Y (en) | 1997-09-11 | 1997-09-11 | Tibia locked intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2309127Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341466C (en) * | 2003-03-21 | 2007-10-10 | 斯恩蒂斯有限公司 | Intramedullary nail |
| CN102784002A (en) * | 2011-05-17 | 2012-11-21 | 北京纳通科技集团有限公司 | Tibial intramedullary nail |
| CN103006304A (en) * | 2011-09-22 | 2013-04-03 | 苏州瑞华医院有限公司 | Static and dynamic exchange-type thighbone interlocking intramedullary nail |
| CN107961067A (en) * | 2018-01-12 | 2018-04-27 | 四川大学华西医院 | Outer inlet Shin-bone internal broach |
| CN108778168A (en) * | 2016-03-18 | 2018-11-09 | 李东勋 | intramedullary nail with anti-inclining function |
-
1997
- 1997-09-11 CN CN 97237054 patent/CN2309127Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100341466C (en) * | 2003-03-21 | 2007-10-10 | 斯恩蒂斯有限公司 | Intramedullary nail |
| CN102784002A (en) * | 2011-05-17 | 2012-11-21 | 北京纳通科技集团有限公司 | Tibial intramedullary nail |
| CN102784002B (en) * | 2011-05-17 | 2015-03-11 | 北京纳通科技集团有限公司 | Tibial intramedullary nail |
| CN103006304A (en) * | 2011-09-22 | 2013-04-03 | 苏州瑞华医院有限公司 | Static and dynamic exchange-type thighbone interlocking intramedullary nail |
| CN108778168A (en) * | 2016-03-18 | 2018-11-09 | 李东勋 | intramedullary nail with anti-inclining function |
| CN107961067A (en) * | 2018-01-12 | 2018-04-27 | 四川大学华西医院 | Outer inlet Shin-bone internal broach |
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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 |