CN202086562U - Anatomical full-locking internal fixing device for hip - Google Patents
Anatomical full-locking internal fixing device for hip Download PDFInfo
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- CN202086562U CN202086562U CN2011201443761U CN201120144376U CN202086562U CN 202086562 U CN202086562 U CN 202086562U CN 2011201443761 U CN2011201443761 U CN 2011201443761U CN 201120144376 U CN201120144376 U CN 201120144376U CN 202086562 U CN202086562 U CN 202086562U
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Abstract
The utility model discloses an anatomical full-locking internal fixing device for the hip, comprising a fixing plate and a locking screw, wherein the fixing plate is in an inwards concave arc in the longitudinal direction, and the upper end of the fixing plate is pitched up so as to adapt to the external anatomical shape of intertrochante; overlapped locking screw holes and single locking screw holes arranged in a shape like a Chinese character of pin are arranged in the middle part of the upper end of the fixing plate; and the fixing plate is also provided with adjusting screw holes. Due to the adoption of a human skeletal anatomy structural design, the intertrochante is similar to the lower outside of tuberosity in shape, which accords with the human skeletal anatomy structural design; the axial inclination angles of the overlapped locking screw holes and single locking screw holes are consistent with the anteversion angle and the collodiaphyseal angle of the shaft of femur; by adopting a steel plate locking connection and head and neck multi-shaft pressurization structural design, not only can the stereoscopic fixation on head and neck tuberosity be realized, but also a pressure side and a tension side are simultaneously fixed, so that stress is dispersed, a strong torsion resistance action is achieved, and a composition nail locking structure is beneficial to controlling the head and the neck to rotate and laterally move and has a good clinical application effect.
Description
Technical field
This utility model belongs to fracture fixation utensil technical field, is specifically related to a kind of anatomical form full lock of fracture of femoral neck, femoral bone tuberosity or subtrochanteric fracture that is applicable to and decides the hip inner fixing device.
Background technology
The people have not only brought great misery to people producing, being subjected to unexpected injury unavoidably in the middle of the life and the generation that causes fracturing, and malpractice also may stay lifelong disability, influence normal production and living, even loses self care ability.Fracture reaches reduction with good and recovers normal physiological function, is the target that the orthopedist pursues.Yet, human body bone complex-shaped, the degree that is hurt is also different, to accomplish sometimes to reset fully, not impossible by utensil.So medical science and technology worker has developed the multiple different parts reduction of the fracture and the fixed utensil of being suitable for, and has obtained good result of use, is that thousands upon thousands fracture patients have been removed the pain of injury.But existing fracture fixation utensil also exists many deficiencies.Fix as Fracture of femur, hip dynamic compression plate (the DHS that abroad use always that adopt more, Dynamic Hip Screw Plate) fixation steel plate, it is single shaft pressurization Fixed Design, axial restraint cross section relative narrower, stressed too concentrated, in case and fixing then can not correct again, adjust, not quite be fit to old people and sufferers of osteoporosis face and use.Therefore, develop a kind of anatomical form full lock of fracture of femoral neck, femoral bone tuberosity or subtrochanteric fracture that is applicable to and decide the hip inner fixing device, will help to overcome the deficiencies in the prior art, reach fixed effect well.
The utility model content
The purpose of this utility model is to overcome the prior art deficiency, provides a kind of simple in structure, manipulates easyly, by the human anatomy structural design, is applicable to that the anatomical form full lock of fracture of femoral neck, femoral bone tuberosity or subtrochanteric fracture is decided the hip inner fixing device.
The purpose of this utility model is achieved in that and comprises fixing head and lock screw, on the described fixing head screw hole is set, described screw hole matches with lock screw head taper thread, described fixing head vertically is indent arc and upper end and faces upward and adapt to femoral bone tuberosity outside anatomical shape, overlapping screw hole is set in fixing head upper center " product " word arrangement and monolock is decided screw hole, also is provided with the adjustment screw hole on the fixing head.
Because this utility model adopts the design of skeleton anatomical structure, the similar subsides that conform to it in the outside under its shape femoral bone tuberosity and the tuberosity; It is consistent with the top rake and the collodiaphyseal angle of femoral shaft that overlapping screw hole and monolock are decided the axial inclination of screw hole; The locking connection of steel plate and the design of the multiaxis pressure structure of head and neck not only can form three-dimensional fixing to the head and neck tuberosity, and on the pressure side fixing simultaneously with tension side, make stress disperse, the twisting resistance effect is strong, plate nail latch-up structure, useful control head and neck rotation and side displacement, clinical practice is imitated.
Description of drawings
Fig. 1 is this utility model fixing head structural front view;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the mirror-symmetrical fixing head front view of Fig. 1;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the viewgraph of cross-section of Fig. 1, Fig. 3;
Fig. 6 is overlapping lock screw topology view;
Fig. 7 is the lock screw topology view;
Fig. 8 is this utility model user mode sketch map.
Among the figure: the 1-fixing head, the overlapping screw hole of 2-, the 3-monolock is decided screw hole, and 4-adjusts screw hole, the common screw hole of 5-, the overlapping lock screw of 6-, the common lock screw of 7-, 8-femoral bone tuberosity, 9-Kirschner wire location pin hole.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is further described, but never in any form this utility model is limited, any conversion based on this utility model training centre is done all falls into protection domain of the present utility model.
As shown in Figure 1 and Figure 2, this utility model comprises fixing head 1 and lock screw, on the described fixing head 1 screw hole is set, described screw hole matches with lock screw head taper thread, described fixing head 1 vertically is indent arc and upper end and faces upward and adapt to femoral bone tuberosity outside anatomical shape, overlapping screw hole 2 is set in fixing head 1 upper center " product " word arrangement and monolock is decided screw hole 3, also is provided with on the fixing head 1 to adjust screw hole 4.
Described overlapping screw hole 2 and monolock are decided screw hole 3 and are arranged in order from top to bottom, and overlapping screw hole 2 and monolock decide screw hole 3 axially the angle between vertical is followed successively by 130 ° ~ 140 ° with fixing head.
Described overlapping screw hole 2 is the overlapping pore structure of the oblique figure of eight.
Described fixing head 1 is provided with adjusts screw hole 4.
Described adjustment screw hole 4 is " shuttle " shape or Long Circle hole.
Fig. 3, Fig. 4 show the fixing head structure that is mirror-symmetrical with Fig. 1, Fig. 2, and to adapt to outer shape under human body left and right sides femoral bone tuberosity and the tuberosity, it is tightr to fit during clinical practice.Fig. 5 shows the structure of overlapping lock screw 6, and described overlapping lock screw 6 is a hollow-core construction, and the head of a nail is provided with the narrow pitch screw thread, and the nail body is provided with the widely-pitched screw thread.
Fig. 6 shows the structure of common lock screw 7, and described common lock screw 7 its heads of a nail are two helicitic textures, and the nail body is provided with the screw thread with head of a nail uniform pitch.
Fig. 7 shows the cross section structure of fixing head 1, and arcuate structure adapts to the surface of bone shape.
Described fixing head 1 is rustless steel or titanium alloy fixing head.
Described fixing head 1 edge is circular arc.
Fig. 8 is this utility model user mode, and overlapping screw hole 2 that is arranged in order from top to bottom and monolock are decided screw hole 3 axially the angle between vertical is respectively 130 ° ~ 140 ° with fixing head.
This utility model operation principle and characteristics:
1, structure design characteristic: two block plates about being designed to by the skeletal anatomy characteristics.Contour structures respectively with left and right sides femoral bone tuberosity and tuberosity under the outside subsides that conform to; The epimere screw hole is that overlapping screw hole and monolock are decided screw hole, and the vertical angle of its each corresponding aperture is all consistent with anteversion of femoral neck, collodiaphyseal angle; Fixing of the skeleton of three groups of suitable different human body of overlapping screw hole; Wherein hypomere is except that there being one to adjust the screw hole, and all the other are common screw hole entirely, can effectively improve the growth of the fixing of skeleton and promotion skeleton broken ends of fractured bone callus.Steel plate length can be made different size, and indication is extensive.
2, biomechanics characteristic: the fracture site multiaxis helps the reduction of the fracture to the application of force of pressurizeing respectively, particularly is controlled to angular displacement effectively; Possess in the art pressurization and postoperative dynamic fixation, static fixation; Many pieces of lock screw form the 3 D stereo of femoral head, neck of femur, tuberosity, femoral shaft and fix, stressed being evenly distributed, and on the pressure side fixing simultaneously with tension side, the anti-shearing force effect is strong, has effectively avoided stress concentration; The nail-plate latch-up structure has effectively been controlled the rotation and the lateral displacement of femoral head, neck of femur and femoral shaft and steel plate connection stability.
3, application characteristics: put the rearmounted nail of steel plate earlier, changed the conventional fixed order, help steel plate and constitute consistent anatomy relationship, guaranteed the accuracy of femur head and neck inserting needle with femur.Be particularly suitable for the reduction of the fracture and fixing under the unclear situation of comminuted tuberosity fracture and anatomy relationship; Many pieces of nail femur head and necks are fixed, and it is big to adjust leeway in the art, the corresponding minimizing of operation error.
Claims (7)
1. an anatomical form full lock is decided the hip inner fixing device, comprise fixing head (1) and lock screw, described fixing head is provided with screw hole on (1), described screw hole matches with lock screw head taper thread, wherein overlapping screw hole (2) and monolock are decided screw hole (3) and are matched with the head of a nail of overlapping screw screw (6), common screw hole (5) matches with the head of a nail of common locking nail (7), it is characterized in that: described fixing head (1) vertically is indent arc and upper end and faces upward and adapt to femoral bone tuberosity outside anatomical shape, fixing head (1) upper center " product " word arrangement is provided with overlapping screw hole (2), monolock is decided screw hole (3), also is provided with on the fixing head (1) to adjust screw hole (4).
2. anatomical form full lock according to claim 1 is decided the hip inner fixing device, it is characterized in that: described overlapping screw hole (2) and monolock are decided screw hole (3) and are arranged in order from top to bottom, and overlapping screw hole (2) and monolock are decided screw hole (3), and axially the angle between vertical is followed successively by 130 ° ~ 140 ° with fixing head.
3. anatomical form full lock according to claim 1 and 2 is decided the hip inner fixing device, it is characterized in that: described overlapping screw hole (2) is the overlapping pore structure of the oblique figure of eight, and monolock is decided screw hole (3) and is the single round hole structure.
4. anatomical form full lock according to claim 1 is decided the hip inner fixing device, it is characterized in that: described adjustment screw hole (4) is " shuttle " shape or Long Circle hole.
5. anatomical form full lock according to claim 1 is decided the hip inner fixing device, it is characterized in that: screw hole (3) decided by described overlapping screw hole (2), monolock and common screw hole (5) has tapering and screw thread is set, and matches with overlapping lock screw (6) and common lock screw (7) head taper thread respectively.
6. anatomical form full lock according to claim 1 and 2 is decided the hip inner fixing device, it is characterized in that: described overlapping lock screw (6) is a hollow-core construction, and the head of a nail is provided with the narrow pitch screw thread, and the nail body is provided with the widely-pitched screw thread.
7. the anatomical form full lock is decided the hip inner fixing device according to claim 1 or 5, it is characterized in that: its head of a nail of described common lock screw (7) is provided with the screw thread with head of a nail uniform pitch for two helicitic textures, nail body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201443761U CN202086562U (en) | 2011-05-09 | 2011-05-09 | Anatomical full-locking internal fixing device for hip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201443761U CN202086562U (en) | 2011-05-09 | 2011-05-09 | Anatomical full-locking internal fixing device for hip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202086562U true CN202086562U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201443761U Expired - Fee Related CN202086562U (en) | 2011-05-09 | 2011-05-09 | Anatomical full-locking internal fixing device for hip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202086562U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551866A (en) * | 2012-01-06 | 2012-07-11 | 张建林 | Trapezoid locking steel plate with radian for treating femoral neck fracture |
| CN106264697A (en) * | 2016-08-31 | 2017-01-04 | 常州华森医疗器械有限公司 | Greater tuberosity anatomical form steel plate |
-
2011
- 2011-05-09 CN CN2011201443761U patent/CN202086562U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551866A (en) * | 2012-01-06 | 2012-07-11 | 张建林 | Trapezoid locking steel plate with radian for treating femoral neck fracture |
| CN102551866B (en) * | 2012-01-06 | 2013-11-27 | 张建林 | Trapezoid locking steel plate with radifor treating femoral neck fracture |
| CN106264697A (en) * | 2016-08-31 | 2017-01-04 | 常州华森医疗器械有限公司 | Greater tuberosity anatomical form steel plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Tianjin Weiman Biological Material Co., Ltd. Assignor: Xiong Ying Contract record no.: 2013120000031 Denomination of utility model: Anatomical full-locking internal fixing device for hip Granted publication date: 20111228 License type: Exclusive License Record date: 20130705 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20200509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |