CN2362450Y - Femur neck axial controlled inner bone marrow locking nail - Google Patents
Femur neck axial controlled inner bone marrow locking nail Download PDFInfo
- Publication number
- CN2362450Y CN2362450Y CN 98234341 CN98234341U CN2362450Y CN 2362450 Y CN2362450 Y CN 2362450Y CN 98234341 CN98234341 CN 98234341 CN 98234341 U CN98234341 U CN 98234341U CN 2362450 Y CN2362450 Y CN 2362450Y
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- CN
- China
- Prior art keywords
- neck
- utility
- model
- neck screw
- marrow
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- Expired - Fee Related
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Abstract
The utility model relates to a femur neck axial controlled inner bone marrow locking nail for fractures around a femur rotor. A marrow inner rod of the utility model has a hollow straight column-shaped structure and is provided with an identifying plane. A neck screw axial control plate is arranged below a neck screw. A fixing guide post clamp of the upper edge of the neck screw axial control plate is embedded into the inner chamber of the neck screw and passes through a slotted hole of the marrow inner rod. The utility model is characterized in that big rotor injury can be prevented when a nail enters the fossa of the rotor. A guide needle is not required to be used for operation for a surgery. The utility model is provided with a recognizing plane for convenient confirmation for operation installation. The utility model is provided with a plate shaft mixed structure and has the advantages of enhancement of torsional resistance, maintenance of compressive stress, simple and reasonable structure, convenient operation, etc.
Description
This utility model relates to the interior lock intramedullary nail of the axial control of neck of femur that a kind of femoral trochanter surrounding fracture is used.
At present, the internal fixation device that is used for the treatment of the femoral trochanter surrounding fracture at orthopaedics mainly contains interior lock intramedullary nail, it mainly is made of rod and neck screw in the outer bending marrow, its shortcoming is: 1, bigger and outwardly-bent the reaching about 15 ° of excellent near-end in the marrow, to advance nail from greater trochanter of femur during operation, advance the preceding palpus of nail and can operate with guide pin earlier; 2, greater trochanter advances nail and causes damage in a big way, causes postoperative function to recover slower; 3, because of the far and near end of needs interlocking, when installing, operation needs under sight, to carry out, and operation is wasted time and energy; 4, because the neck screw is cylindric, when walking hip joint pendular movement and cause producing between the fracture site rotation stress, thereby anti-torsional strength is low, in addition since firm static fix, thereby stress shielding appears, influences union of fracture, extended treatment time, increases patient's misery etc.
The purpose of this utility model be exactly provide in order to overcome above-mentioned weak point a kind of must guide pin and advance axially lock intramedullary nail in the control of nail, damage range is few, anti-torsional strength is high, simple to operate and respond well neck of femur at intertrochanteric fossae.
Rod 1 is hollow right cylinder type structure in the marrow of the present utility model, and a neck screw axial panel 3 is arranged below neck screw 2, and fixedly guide pillar 4 inlay cards of neck screw axial panel 3 tops are at the inner chamber of neck screw and pass the slotted eye 5 of rod 1 in the marrow.The near-end of rod 1 has an identification plane 6 in the marrow.This utility model is fixed in neck screw axial panel 3 on the neck screw 2 by the panel hold-down screw 7 at neck screw 2 ends.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is an excellent side structure sketch map in the marrow of the present utility model.
Referring to Fig. 1, Fig. 2, rod 1 has an identification plane 6 in the side near neck screw 2 in the marrow of the present utility model, is mainly used in when confirming to advance to follow closely the orientation of putting of rod in the marrow 1 itself.Hold-down screw 8 mainly is to be used for fixing neck screw 2 and to prevent that neck screw 2 from gliding.It is long trapezoidal that neck screw axial panel 3 is, and the effect of far-end internal lock screw 9 is to prevent that this utility model is shifted downwards.When using this utility model, earlier rod 1 in the marrow is inserted marrow cavity of femur from the intertrochanteric fossae direct motion, and need not use guide pin to operate, neck screw 2 is installed under sight is assisted after the reduction of the fracture and is fixed, neck screw axial panel 3 is installed again and is fixed by panel hold-down screw 7 by hold-down screw 8.Neck screw axial panel 3 is used with neck screw 2, produce a kind of axillare mixed structure, can improve the twisting resistance of fracture site greatly and overcome rotation stress between the fracture site, keep the compression stress (being that dynamic property is fixed) between fracture site simultaneously, thereby help symphysis, shorten the course of treatment and minimizing patient's misery.If necessary, far-end internal lock screw 9 being installed under the assistance of sight glides to prevent this utility model.
Characteristics of the present utility model are: 1, rod is hollow right cylinder type in the marrow, at rotor Between nest advance nail and avoid the greater trochanter damage, need not use guide pin to operate during operation; 2, Have the identification plane, be convenient to when operation is installed confirm; 3, have plate axle mixed structure, Improve twisting resistance and also overcome rotation stress, keep simultaneously compression stress and be conducive to bone Healing; 4, simple and reasonable, easy to operate etc.
Claims (3)
1, lock intramedullary nail in a kind of neck of femur is axially controlled, comprise parts such as rod, neck screw and far-end internal lock screw in the marrow, it is characterized in that rod (1) is hollow right cylinder type structure in the marrow, one neck screw axial panel (3) is arranged, the inner chamber of fixedly guide pillar (4) the inlay card neck screw of neck screw axial panel (3) top and pass the slotted eye (5) of rod (1) in the marrow in neck screw (2) below.
2, axially control interior lock intramedullary nail by the described neck of femur of claim 1, it is characterized in that the near-end of rod (1) in the marrow has an identification plane (6).
3, axially control interior lock intramedullary nail by the described neck of femur of claim 1, it is characterized in that by neck screw axial panel (3) being fixed on the neck screw (2) at the terminal panel hold-down screw (7) of neck screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98234341 CN2362450Y (en) | 1998-06-02 | 1998-06-02 | Femur neck axial controlled inner bone marrow locking nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98234341 CN2362450Y (en) | 1998-06-02 | 1998-06-02 | Femur neck axial controlled inner bone marrow locking nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2362450Y true CN2362450Y (en) | 2000-02-09 |
Family
ID=33982883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98234341 Expired - Fee Related CN2362450Y (en) | 1998-06-02 | 1998-06-02 | Femur neck axial controlled inner bone marrow locking nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2362450Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384384C (en) * | 2003-03-07 | 2008-04-30 | 斯恩蒂斯有限公司 | Locking screw for an intramedullary nail |
| CN101912299A (en) * | 2010-09-03 | 2010-12-15 | 唐佩福 | Integrated intramedullary nail system for treating proximal femoral fracture |
| 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 |
| US8668695B2 (en) | 2008-10-15 | 2014-03-11 | Zimmer Gmbh | Intramedullary nail |
| CN104688312A (en) * | 2015-03-17 | 2015-06-10 | 苏州瑞华医院有限公司 | Locking plate type intramedullary nail for femoral intertrochanteric fracture treatment |
| CN105997216A (en) * | 2016-06-29 | 2016-10-12 | 江苏艾迪尔医疗科技股份有限公司 | Ulna intramedullary nail |
| CN105997214A (en) * | 2016-06-29 | 2016-10-12 | 江苏艾迪尔医疗科技股份有限公司 | Intramedullary interlocking internal nail |
| CN107223040A (en) * | 2014-05-09 | 2017-09-29 | 萨维奇医疗设计有限责任公司 | Medullary fixation device and system in hipbone and femoral fracture operation |
| WO2022041643A1 (en) * | 2020-08-28 | 2022-03-03 | 陈聚伍 | Femoral neck fracture fixation device |
-
1998
- 1998-06-02 CN CN 98234341 patent/CN2362450Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384384C (en) * | 2003-03-07 | 2008-04-30 | 斯恩蒂斯有限公司 | Locking screw for an intramedullary nail |
| US8668695B2 (en) | 2008-10-15 | 2014-03-11 | Zimmer Gmbh | Intramedullary nail |
| US9474557B2 (en) | 2008-10-15 | 2016-10-25 | Zimmer Gmbh | Intramedullary nail |
| 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 |
| CN101912299A (en) * | 2010-09-03 | 2010-12-15 | 唐佩福 | Integrated intramedullary nail system for treating proximal femoral fracture |
| CN107223040A (en) * | 2014-05-09 | 2017-09-29 | 萨维奇医疗设计有限责任公司 | Medullary fixation device and system in hipbone and femoral fracture operation |
| CN107223040B (en) * | 2014-05-09 | 2020-11-24 | 萨维奇医疗设计有限责任公司 | Intramedullary fixation device and system for use in hip and femur fracture surgery |
| CN104688312A (en) * | 2015-03-17 | 2015-06-10 | 苏州瑞华医院有限公司 | Locking plate type intramedullary nail for femoral intertrochanteric fracture treatment |
| CN105997216A (en) * | 2016-06-29 | 2016-10-12 | 江苏艾迪尔医疗科技股份有限公司 | Ulna intramedullary nail |
| CN105997214A (en) * | 2016-06-29 | 2016-10-12 | 江苏艾迪尔医疗科技股份有限公司 | Intramedullary interlocking internal nail |
| WO2022041643A1 (en) * | 2020-08-28 | 2022-03-03 | 陈聚伍 | Femoral neck fracture fixation device |
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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 |