CN102335036A - Proximal lateral femur locking device - Google Patents
Proximal lateral femur locking device Download PDFInfo
- Publication number
- CN102335036A CN102335036A CN2011102086855A CN201110208685A CN102335036A CN 102335036 A CN102335036 A CN 102335036A CN 2011102086855 A CN2011102086855 A CN 2011102086855A CN 201110208685 A CN201110208685 A CN 201110208685A CN 102335036 A CN102335036 A CN 102335036A
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- Prior art keywords
- lock screw
- tuberosity part
- tuberosity
- locking device
- steel plate
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Abstract
The invention discloses a proximal lateral femur locking device which comprises a locking steel plate, wherein the locking steel plate comprises a spoon part at the upper end and a shank part at the lower end, wherein the locking device also comprises three tuberosity locking screws used for stretching into the femoral tuberosity, and the three tuberosity locking screws are installed on the spoon part of the locking steel plate and arranged crosswise. The proximal lateral femur locking device is capable of effectively fixing the proximal lateral femur firmly without loose, thereby promoting healing of bone fracture.
Description
Technical field
The present invention relates to a kind of orthopedic medical device, be meant a kind of near end of thighbone outside locking device especially.
Background technology
Fracture and greater trochanter of femur are fractured down between the fracture of femoral neck of the tuberosity part of fractured near end of thighbone such as femur, greater trochanter of femur, are the common but severe damage.Particularly owing to the dissection particularity of neck of femur, in case fracture, it resets and fixes all ten minutes difficulties, nonunion and ischemic necrosis of femoral head often takes place, so disability rate is also higher.Therapeutic Method and internal fixation apparatus to this major injury is a lot of at present; But final effect is all unsatisfactory; Trace it to its cause, the one, behind the fractured near end of thighbone between the broken ends of fractured bone shearing force can not effectively be overcome with the rotation twisting stress, cause to be difficult between the fracture end keep to reset and add press fit; The 2nd, fractured near end of thighbone is common in again and merges the old people of osteoporosis in various degree.The lock screw of present near end of thighbone outside locking device is loosening easily on axial with lock screw when being screwed in the tuberosity part, thereby has influenced treatment for laterally arranging.
Summary of the invention
Technical problem to be solved by this invention is: a kind of near end of thighbone outside locking device is provided, and this near end of thighbone outside locking device can effectively be fixed the near end of thighbone outside, and fixation is difficult for becoming flexible, thereby promotes the healing of fracture.
For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of near end of thighbone outside locking device; Comprise locking steel plate; Said locking steel plate comprises spoon portion and the shank of lower end of upper end, and said locking device also comprises the three interior tuberosity part lock screw of tuberosity part that are used to extend into femur, and said three tuberosity part lock screw are installed in the spoon portion of locking steel plate and are arranged in a crossed manner.
As a kind of preferred scheme, the crossover location of said three tuberosity part lock screw and the neck location of femoral trochanteric are corresponding.
As a kind of preferred scheme, in said three tuberosity part lock screw, the tuberosity part lock screw that is in the lower end is not intersected with the tuberosity part lock screw that mediates, and is in two tuberosity part lock screw of tuberosity part lock screw and other topmost and all intersects.
As a kind of preferred scheme, have between said three tuberosity part lock screw and the locking steel plate and be convenient to the top rake that the tuberosity part lock screw extend into the tuberosity part center.
As a kind of preferred scheme, described tuberosity part lock screw is a cancellous bone screw.
As a kind of preferred scheme, said tuberosity part lock screw be provided with 3.0mm axial hollow bore.
As a kind of preferred scheme, the shaft of femur screw that several are vertically arranged is installed on the shank of said locking steel plate, said shaft of femur screw transversion malposition is arranged.
After having adopted technique scheme, effect of the present invention is: because said a kind of near end of thighbone outside locking device comprises locking steel plate; Said locking steel plate comprises the spoon portion of upper end and the shank of lower end; Said locking device also comprises three tuberosity part lock screw in the tuberosity part that is used to extend into femur, and said three tuberosity part lock screw are installed in the spoon portion of locking steel plate and are arranged in a crossed manner, therefore; The spoon portion of locking steel plate and the greater trochanter outside of human femur under loading near-end are fitted; Fit closely with surface of bone, the tuberosity part that the tuberosity part lock screw is screwed into femur is used for locking, because three tuberosity part lock screw are installed in the spoon portion of locking steel plate and are arranged in a crossed manner; Therefore just very firm to fixing of tuberosity part; Its hold is very strong, thereby has overcome behind the fractured near end of thighbone shearing force and rotation twisting stress between the broken ends of fractured bone, thereby promotes the healing of fracture.
Again because the neck location of the crossover location of said three tuberosity part lock screw and femoral trochanteric is corresponding; So because the femoral neck diameter of tuberosity part is smaller, and three tuberosity part lock screw crossover locations are also very little, it is very reasonable to be provided with like this; Avoid the tuberosity part lock screw directly to be punctured into the head of tuberosity part without femoral neck from greater trochanter; Thereby make fixing more firmly, also avoid the tuberosity part lock screw to contact, cause the muscle inflammation with near the muscle of tuberosity part.
Be convenient to the top rake that the tuberosity part lock screw extend into the tuberosity part center owing to having between said three tuberosity part lock screw and the locking steel plate again; Because the relative shaft of femur of tuberosity part has the physiology top rake; The angle of its physiology top rake is about 6 °, therefore, also is provided with top rake between three tuberosity part lock screw and the locking steel plate; Thereby be convenient to the center that the tuberosity part lock screw is inserted into tuberosity part; Make fixingly more firm the time, avoid the tuberosity part lock screw to contact, cause the muscle inflammation with near the muscle of tuberosity part.
Again because the shaft of femur screw that several are vertically arranged is installed on the shank of said locking steel plate; Said shaft of femur screw transversion malposition is arranged; Therefore make the shaft of femur screw fixed more firm, also just make locking device locking Fracture of femur place more firm, increased the resistance to plucking ability.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the mounting structure sketch map of the embodiment of the invention;
Fig. 2 is the front view of the locking steel plate of the embodiment of the invention;
Fig. 3 is the side view of Fig. 2;
In the accompanying drawing: 1. locking steel plate; 11. shank; 12. spoon portion; 13. screw hole; 14. strip hole; 2. tuberosity part lock screw; 21. hollow bore; 3. shaft of femur screw; 4. tuberosity part; 41. head; 42. cervical region; 43. greater trochanter; 5. shaft of femur.
The specific embodiment
Through specific embodiment the present invention is made further detailed description below.
A kind of near end of thighbone outside locking device; Like Fig. 1, Fig. 2 and shown in Figure 3, comprise locking steel plate 1, said locking steel plate 1 comprises the spoon portion 12 of upper end and the shank 11 of lower end; Greater trochanter 43 forms in the near end of thighbone outside of the spoon portion 12 of upper end and human body match; Be adjacent to very closely with greater trochanter 43 surfaces of bone, the shank of lower end 11 fits with shaft of femur 5, and said locking device also comprises three tuberosity part lock screw 2 in the tuberosity part 4 that is used to extend into femur; The spoon portion 12 of said locking steel plate 1 is provided with three screw holes 13, and said three tuberosity part lock screw 2 are installed in the screw hole 13 in the spoon portion 12 of locking steel plate 1 and are arranged in a crossed manner.Described tuberosity part 4 lock screw 2 are cancellous bone screw.Because three tuberosity part lock screw 2 are arranged in a crossed manner; Therefore the hold of tuberosity part 4 lock screw 2 is just very big; Make the fixing more firm of steel plate and femoral trochanteric 4, cervical region 42 positions of the crossover location of said three tuberosity part lock screw 2 and femoral trochanteric 4 are corresponding.When being screwed into tuberosity part 4 lock screw 2; The crossover location of three tuberosity part lock screw 2 is in cervical region 42 positions; And the intersection front end of three tuberosity part lock screw 2 is positioned at the head 41 of tuberosity part 4; And cervical region 42 positions are the minimum positions of tuberosity part 4 diameters, thereby can guarantee that three tuberosity part lock screw 2 are not exposed at the femur outside, do not contact with femur muscle on every side and cause the muscle inflammation.In said three tuberosity part lock screw 2, tuberosity part 4 lock screw 2 that are in the lower end are not intersected with tuberosity part 4 lock screw 2 that mediate, and are in two tuberosity parts of tuberosity part 4 lock screw 2 and other, 4 lock screw 2 topmost and all intersect.Certainly; Its interleaved mode can also be a variety of; Such as can being tuberosity part 4 lock screw 2 that are in the lower end and the tuberosity part that mediates 4 lock screw 2, being in tuberosity part 4 lock screw 2 topmost and all intersecting, and be in tuberosity part 4 lock screw 2 of lower end and tuberosity part 4 lock screw 2 that mediate are not intersected.
Because the tuberosity part 4 of the femur of human body has top rake; Just the tuberosity part among Fig. 14 leans forward outside paper from paper, therefore, has between said three tuberosity part lock screw 2 and the locking steel plate 1 and is convenient to the top rake that tuberosity part 4 lock screw 2 extend into tuberosity part 4 centers; So just can guarantee that tuberosity part 4 lock screw 2 are screwed into the center of tuberosity part 4; Make fixingly more firm the time, avoid tuberosity part 4 lock screw 2 to contact, cause the muscle inflammation with near tuberosity part 4 muscle.
Because tuberosity part 4 lock screw 2 is arranged in a crossed manner, therefore practices thrift the installing space of tuberosity part 4 lock screw 2, thereby can select tuberosity part 4 lock screw 2 of the thick point of diameter for use; Like this tuberosity part 4 lock screw 2 be provided with 3.0mm axial hollow bore 21, be convenient to penetrate the guide pin of 3.0mm like this, location in the convenient operation; And; 3.0mm guide pin also have rigidity preferably, angular deflection takes place in the time of can preventing that guide pin from squeezing into, the shaft of femur screw 3 that several are vertically arranged is installed on the shank 11 of said locking steel plate 1; This shaft of femur screw 3 is screwed in the shaft of femur 5 when mounted, and said shaft of femur screw 3 transversion malpositions are arranged.Shank 11 is provided with strip hole 14 on the locking steel plate 1, and these strip hole 14 zones are the stress dispersion area, can dispersive stress, reduce the generation of locking steel plate 1 fracture.
Claims (7)
1. near end of thighbone outside locking device; Comprise locking steel plate; Said locking steel plate comprises the spoon portion of upper end and the shank of lower end; It is characterized in that: said locking device also comprises three tuberosity part lock screw in the tuberosity part that is used to extend into femur, and said three tuberosity part lock screw are installed in the spoon portion of locking steel plate and are arranged in a crossed manner.
2. near end of thighbone as claimed in claim 1 outside locking device, it is characterized in that: the crossover location of said three tuberosity part lock screw and the neck location of femoral trochanteric are corresponding.
3. near end of thighbone as claimed in claim 2 outside locking device; It is characterized in that: in said three tuberosity part lock screw; The tuberosity part lock screw that is in the lower end is not intersected with the tuberosity part lock screw that mediates, and is in two tuberosity part lock screw of tuberosity part lock screw and other topmost and all intersects.
4. near end of thighbone as claimed in claim 3 outside locking device is characterized in that: have between said three tuberosity part lock screw and the locking steel plate and be convenient to the top rake that the tuberosity part lock screw extend into the tuberosity part center.
5. like each described near end of thighbone outside locking device of claim 1 to 4, it is characterized in that: described tuberosity part lock screw is a cancellous bone screw.
6. near end of thighbone as claimed in claim 5 outside locking device is characterized in that: said tuberosity part lock screw be provided with 3.0mm axial hollow bore.
7. near end of thighbone as claimed in claim 6 outside locking device, it is characterized in that: the shaft of femur screw that several are vertically arranged is installed on the shank of said locking steel plate, and said shaft of femur screw transversion malposition is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102086855A CN102335036A (en) | 2011-07-25 | 2011-07-25 | Proximal lateral femur locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102086855A CN102335036A (en) | 2011-07-25 | 2011-07-25 | Proximal lateral femur locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102335036A true CN102335036A (en) | 2012-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102086855A Pending CN102335036A (en) | 2011-07-25 | 2011-07-25 | Proximal lateral femur locking device |
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| Country | Link |
|---|---|
| CN (1) | CN102335036A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105640630A (en) * | 2014-12-01 | 2016-06-08 | 爱派司生技股份有限公司 | Fixing device for hip fracture |
| CN106236229A (en) * | 2016-08-24 | 2016-12-21 | 王成斌 | Internal fixer for intertrochanter fracture of femur |
| CN107961069A (en) * | 2017-12-19 | 2018-04-27 | 暨南大学 | A kind of fracture of neck of femur hollow screw inserts guider |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2787160Y (en) * | 2004-07-13 | 2006-06-14 | 内蒙古医学院附属医院 | Novel dissection type steel plate for femoral bone proximal end and its matching screw |
| CN200970261Y (en) * | 2006-10-27 | 2007-11-07 | 潘伟新 | Sliding and direction changing external fixing frame for femur reck and intertrochanteric fracture double screw pressure needle |
| CN202198662U (en) * | 2011-07-25 | 2012-04-25 | 苏州市康力骨科器械有限公司 | Device for locking outer side at proximal end of thighbone |
-
2011
- 2011-07-25 CN CN2011102086855A patent/CN102335036A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2787160Y (en) * | 2004-07-13 | 2006-06-14 | 内蒙古医学院附属医院 | Novel dissection type steel plate for femoral bone proximal end and its matching screw |
| CN200970261Y (en) * | 2006-10-27 | 2007-11-07 | 潘伟新 | Sliding and direction changing external fixing frame for femur reck and intertrochanteric fracture double screw pressure needle |
| CN202198662U (en) * | 2011-07-25 | 2012-04-25 | 苏州市康力骨科器械有限公司 | Device for locking outer side at proximal end of thighbone |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105640630A (en) * | 2014-12-01 | 2016-06-08 | 爱派司生技股份有限公司 | Fixing device for hip fracture |
| CN106236229A (en) * | 2016-08-24 | 2016-12-21 | 王成斌 | Internal fixer for intertrochanter fracture of femur |
| CN107961069A (en) * | 2017-12-19 | 2018-04-27 | 暨南大学 | A kind of fracture of neck of femur hollow screw inserts guider |
| CN107961069B (en) * | 2017-12-19 | 2023-06-06 | 暨南大学 | Guide is put into to hollow screw of femur neck fracture |
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Application publication date: 20120201 |