CN201524132U - Triangular support intramedullary nail for treating fracture between femur neck and tuberosity - Google Patents
Triangular support intramedullary nail for treating fracture between femur neck and tuberosity Download PDFInfo
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- CN201524132U CN201524132U CN200920254062XU CN200920254062U CN201524132U CN 201524132 U CN201524132 U CN 201524132U CN 200920254062X U CN200920254062X U CN 200920254062XU CN 200920254062 U CN200920254062 U CN 200920254062U CN 201524132 U CN201524132 U CN 201524132U
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- intramedullary pin
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Abstract
A triangular support intramedullary nail for treating fracture between femur neck and tuberosity pertains to the field of orthopedic medical device technology, for providing device for treating fracture between femur neck and tuberosity, with good fixation stability, high fixation intensity, and no attaint and fracture for treating fracture between femur neck and tuberosity. The triangular support intramedullary nail consists of intramedullary nails, locating screws and support screws, locating holes and supporting holes are provided on the nail body of the intramedullary nail, the supporting hole is provided above or below the locating hole, the locating hole and the supporting hole slopedly passes through the shaft line of the nail body of the intramedullary nail, and are at a same space plane, the bore diameter of the locating hole and the supporting hole is matched with the diameter of the locating screw and the supporting screw, a side port is also connected to the front end of the locating screw, the locating screw and the supporting screw perforates the intramedullary nail for intersection connection. By adopting the structure, the locating screw and the supporting screw perforate the intramedullary nail for connecting to each other to form a triangle support structure, for providing stable support and firm fixation to the fractures between the femur neck and tuberosity.
Description
Technical field
This utility model relates to a kind of utensil for the treatment of neck of femur and intertrochanteric fracture, belongs to the orthopedic medical device technical field.
Background technology
Statistics are arranged, and fracture of femoral neck accounts for and accounts for 3.85% of whole body fracture.The reason of all ages and classes section crowd's fracture of femoral neck is different, and fracture of femoral neck is mainly due to due to the high-energy wound in child and young patient, and the high-energy damage that road traffic accident and high falling cause is the modal reason of fracture of femoral neck.Old people's fracture of femoral neck then is the variation of bony structures and the fragility that causes, as runs into and slight collision such as fall down and will fracture.Along with social senilization, the incidence rate of old people's fracture of femoral neck constantly rises, and has become the commonly encountered diseases and the frequently-occurring disease of old orthopaedics, so the treatment of fracture of femoral neck is one of emphasis of orthopaedic trauma research always.The normal easy concurrent multiple complications in fracture of femoral neck treatment back, nonunion or Avascular Necrosis Of Femur Head, internal fixation ruptures, becomes flexible, deviates from, malunion of fracture etc., and wherein nonunion or Avascular Necrosis Of Femur Head are two hang-ups of this disease after the fracture of femoral neck.
Require timely treatment, anatomical reduction in the fracture of femoral neck treatment, recover the blood fortune of neck of femur as early as possible, to reduce the incidence rate of complication such as Avascular Necrosis Of Femur Head.Row internal fixation treatment behind the fracture of femoral neck manual reduction, available internal fixation device has multiple, for example hollow nail, three flanged nail, sliding nail or nail-plate, pressurization Dan Ding and the many nails of pressurization etc.Comparatively commonly used is many pieces of hollow screw pressurization technique for fixing, comprising 3 pieces of hollow forcing screw internal fixation.The degree of stability and the union of fracture that studies show that fracture fixation are closely related.The fracture of femoral neck quality of reduction is not only relevant in union of fracture, and whether Avascular Necrosis Of Femur Head takes place substantial connection is also arranged.
At present, the main Therapeutic Method of intertrochanteric fracture of the femur operative treatment comprises that many pieces of steinman pins or hollow screw are fixed, the nail-plate class is fixed, the marrow internal fixation system.These method complication are more, and what have is also heavier.Wherein relevant with therapeutic device mainly comprises: internal fixation fracture, loosening, coxa vara is lopsided, nonunion etc., afterwards fixed degree of stability is poor, the constant intensity difference is relevant with fracture for its main cause.
Summary of the invention
Technical problem to be solved in the utility model provides that a kind of stability maintenance is good, constant intensity is high, not fragile and the treatment neck of femur of fracture and the triangle support intramedullary pin of intertrochanteric fracture.
The technical scheme that solves the problems of the technologies described above is:
A kind of triangle support intramedullary pin for the treatment of neck of femur and intertrochanteric fracture, it is by intramedullary pin, dog screw, supporting screw is formed, have locating hole and supported hole on the nail body of intramedullary pin, supported hole is above or below locating hole, locating hole and supported hole tilt to pass through the axis of intramedullary pin nail body, and on the same space plane, the diameter of the aperture of locating hole and supported hole and dog screw and supporting screw is complementary, front end at dog screw connects side opening in addition, dog screw and supporting screw intersect after passing intramedullary pin, and supporting screw passes the connection side opening on the dog screw.
The triangle support intramedullary pin of above-mentioned treatment neck of femur and intertrochanteric fracture, described locating hole and intramedullary pin axis are 125 °-145 °, supported hole is above locating hole, and supported hole and intramedullary pin axis are 75 °-95 °, and the axis that connects side opening and dog screw is 40 °-60 °.
The triangle support intramedullary pin of above-mentioned treatment neck of femur and intertrochanteric fracture, described locating hole and intramedullary pin axis are 125 °-145 °, supported hole is below locating hole, and supported hole and intramedullary pin axis are 150-170 ° of angle, and the axis that connects side opening and dog screw is 15 °-30 °.
The triangle support intramedullary pin of above-mentioned treatment neck of femur and intertrochanteric fracture, described dog screw can be hollow-core construction, and its sidewall is distributed with side opening, and diameter is 0.6-2.5cm.
Adopt the treatment neck of femur of this structure and the triangle support intramedullary pin of intertrochanteric fracture, dog screw be connected after supporting screw passes intramedullary pin, form triangular support structure, for neck of femur and intertrochanteric fracture provide firm support and firm fixing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of this utility model supported hole below locating hole.
Labelling is as follows among the figure: femur 1, femoral head 2, intramedullary pin 3, dog screw 4, supporting screw 5, dog screw and intramedullary pin angle α, top supporting screw and intramedullary pin angle β, top supporting screw and dog screw angle γ, supported underneath screw and intramedullary pin angle δ, supported underneath screw and dog screw angle ε
The specific embodiment
This utility model is made up of intramedullary pin 3, dog screw 4, supporting screw 5.
Have locating hole and supported hole on the nail body of intramedullary pin 3, supported hole is above or below locating hole.Dog screw 4 and supporting screw 5 tilts to pass the back through the locating hole on the intramedullary pins 3 nail bodies and supported hole and intersects, and at the front end of dog screw 4 the connection side opening arranged, and the connection side opening that supporting screw 5 passes on the dog screw 4 is connected with dog screw 4.Dog screw 4 can be hollow-core construction, and its sidewall is distributed with side opening, is made by the titanium net, and diameter is 0.6-2.5cm.
Angle between intramedullary pin 3, locating hole, supported hole, the connection side opening is as follows:
The angle of locating hole and intramedullary pin axis is 125 °-145 °;
Supported hole is above locating hole the time, and supported hole and intramedullary pin axis angle are 75 °-95 °, and the angle that connects between side opening and the dog screw axis is 40 °-60 °;
Supported hole is below locating hole the time, and supported hole and intramedullary pin axis angle are 150 °-170 °, and the angle that connects between side opening and the dog screw axis is 15 °-30 °.
Show among the figure that the angle between the intramedullary pin 3 of an embodiment of the present utility model, dog screw 4, the supporting screw 5 is as follows:
Dog screw 4 is 135 ° with the angle α of intramedullary pin 3;
Supporting screw 5 is above dog screw 4 time, and supporting screw 5 is 85 ° with the angle β of intramedullary pin 3, and supporting screw 5 is 50 ° with the angle γ of dog screw 4;
Supporting screw 5 is below dog screw 4 time, and supporting screw 5 is 160 ° with intramedullary pin 3 angle δ, and supporting screw 5 is 25 ° with the angle ε of dog screw 4.
Using method:
After the reduction of the fracture, through femur 1 proximal openings, installation and guide device expands marrow or does not expand marrow and insert intramedullary pin 3 main nails.Then at femur 1 outside otch, cut skin, subcutaneous tissue successively, separating muscles etc. expose femur 1, a side opening through intramedullary pin 3 main nails is screwed into guide pin to femoral head 2 and neck middle part, fluoroscopic examination determines that the reduction of the fracture is screwed into dog screw 4 after satisfied in the art, insert supporting screw 5 then, make itself and intramedullary pin 3 main dog screws 4 of following closely and inserting neck of femur form three-legged structures, for fracture provides firm support and firm fixing.
The construction features of dog screw 4 is that it has the connection side opening, can hold supporting screw, and constitutes triangle, connects vicinity 2/3 place that side opening is positioned at dog screw 4 afterbodys.The main pin structure of dog screw 4 can be hollow-core construction, and sidewall is distributed with side opening, is made by the titanium net, can be in it after the implantation impaction bone grafting, promote union of fracture, avoid taking place nonunion and ischemic necrosis.
Supporting screw 5 can be screwed in the top of dog screw 4, and its entry point is positioned at 1-3cm place, below, greater trochanter tip, is applicable to the comparatively complete case of below sclerotin; Supporting screw 5 also can make it near bigelow's septum by the below of dog screw 4, utilizes the supporting role of complete bigelow's septum and leg-of-mutton firm effect that firm fixing is provided, and is applicable to the comparatively complete case of top sclerotin.
Claims (4)
1. triangle support intramedullary pin for the treatment of neck of femur and intertrochanteric fracture, it is characterized in that: it is by intramedullary pin [3], dog screw [4], supporting screw [5] is formed, have locating hole and supported hole on the nail body of intramedullary pin [3], supported hole is above or below locating hole, locating hole and supported hole tilt to pass through the axis of intramedullary pin [3] nail body, and on the same space plane, the diameter of the aperture of locating hole and supported hole and dog screw [4] and supporting screw [5] is complementary, front end at dog screw [5] connects side opening in addition, dog screw [4] and supporting screw [5] pass intramedullary pin [3] back and intersect, and supporting screw [5] passes the connection side opening on the dog screw [4].
2. the triangle support intramedullary pin of treatment neck of femur according to claim 1 and intertrochanteric fracture, it is characterized in that: the axis of described locating hole and intramedullary pin [3] is 125 °-145 °, supported hole is above locating hole, the axis of supported hole and intramedullary pin [3] is 75 °-95 °, and the axis that connects side opening and dog screw [4] is 40 °-60 °.
3. the triangle support intramedullary pin of treatment neck of femur according to claim 1 and intertrochanteric fracture, it is characterized in that: the axis of described locating hole and intramedullary pin [3] is 125-145 ° of angle, supported hole is below locating hole, the axis of supported hole and intramedullary pin [3] is 150 °-170 °, and the axis that connects side opening and dog screw [4] is 15 °-30 °.
4. according to the triangle support intramedullary pin of claim 1,2 or 3 described treatment necks of femur and intertrochanteric fracture, it is characterized in that: described dog screw [4] is hollow-core construction, and its sidewall is distributed with side opening, and diameter is 0.6-2.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920254062XU CN201524132U (en) | 2009-10-16 | 2009-10-16 | Triangular support intramedullary nail for treating fracture between femur neck and tuberosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920254062XU CN201524132U (en) | 2009-10-16 | 2009-10-16 | Triangular support intramedullary nail for treating fracture between femur neck and tuberosity |
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| Publication Number | Publication Date |
|---|---|
| CN201524132U true CN201524132U (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920254062XU Expired - Fee Related CN201524132U (en) | 2009-10-16 | 2009-10-16 | Triangular support intramedullary nail for treating fracture between femur neck and tuberosity |
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| CN (1) | CN201524132U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013151501A1 (en) * | 2012-04-04 | 2013-10-10 | Kok Sun Khong | Surgical implant device, method and apparatus for implanting thereof |
| CN107669327A (en) * | 2017-11-08 | 2018-02-09 | 南方医科大学南方医院 | Possesses minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
| JP2018069044A (en) * | 2016-09-22 | 2018-05-10 | グローバス メディカル インコーポレイティッド | System and method for intramedullary nail implantation |
| US10751096B2 (en) | 2016-09-22 | 2020-08-25 | Bala Sundararajan | Systems and methods for intramedullary nail implantation |
| US11045242B2 (en) | 2016-09-22 | 2021-06-29 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
-
2009
- 2009-10-16 CN CN200920254062XU patent/CN201524132U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013151501A1 (en) * | 2012-04-04 | 2013-10-10 | Kok Sun Khong | Surgical implant device, method and apparatus for implanting thereof |
| US10307197B2 (en) | 2016-09-22 | 2019-06-04 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| JP2018069044A (en) * | 2016-09-22 | 2018-05-10 | グローバス メディカル インコーポレイティッド | System and method for intramedullary nail implantation |
| EP3298972A3 (en) * | 2016-09-22 | 2018-07-04 | Globus Medical, Inc. | Systems for intramedullary nail implantation |
| US10251691B2 (en) | 2016-09-22 | 2019-04-09 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| US10299847B2 (en) | 2016-09-22 | 2019-05-28 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| US10463416B2 (en) | 2016-09-22 | 2019-11-05 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| US10751096B2 (en) | 2016-09-22 | 2020-08-25 | Bala Sundararajan | Systems and methods for intramedullary nail implantation |
| US11045242B2 (en) | 2016-09-22 | 2021-06-29 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| US11090098B2 (en) | 2016-09-22 | 2021-08-17 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| US11179184B2 (en) | 2016-09-22 | 2021-11-23 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| US11213337B2 (en) | 2016-09-22 | 2022-01-04 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| US11730524B2 (en) | 2016-09-22 | 2023-08-22 | Globus Medical, Inc. | Systems and methods for intramedullary nail implantation |
| CN107669327A (en) * | 2017-11-08 | 2018-02-09 | 南方医科大学南方医院 | Possesses minimally invasive and support function non-expanding bone intramedullary nail for treating femoral fracture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20111016 |