CN203693734U - Bone setting steel plate protection structure - Google Patents
Bone setting steel plate protection structure Download PDFInfo
- Publication number
- CN203693734U CN203693734U CN201420053166.5U CN201420053166U CN203693734U CN 203693734 U CN203693734 U CN 203693734U CN 201420053166 U CN201420053166 U CN 201420053166U CN 203693734 U CN203693734 U CN 203693734U
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- China
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- steel plate
- plate
- fractures
- protection structure
- bone
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Abstract
The utility model relates to a bone setting steel plate protection structure which comprises a steel plate fixed to the side of a fracture portion. A plurality of equidistant threaded holes A are formed in the steel plate in the length direction, and the steel plate is connected with the upper end and the lower end of the fracture portion through locking screws A in the threaded holes A. The bone setting steel plate protection structure is characterized in that the fracture portion is provided with an inner side plate arranged on the inner side of the steel plate and an outer side plate arranged on the outer side of the steel plate, the inner side plate and the outer side plate are respectively provided with at least two threaded holes B distributed in the two ends of the fracture portion, the distance between the threaded holes B and the threaded holes A in the steel plate is equal, and the inner side plate, the outer side plate and the steel plate are fixedly connected to the upper end and the lower end of the fracture portion through locking screws B. Low-elasticity-modulus nickel titanium steel plates are adopted as protection plates of a distal femur steel plate, the mechanical strength of the main steel plate is increased through dispersion of the internal stress and external stress of the two protection plates, the stress of the steel plate fracture area is reduced, the structure can be additionally arranged on all current steel plates, cost can be saved, and the fracture treatment effect can be guaranteed.
Description
Technical field
This utility model relates to a kind of bone-fracture fixation steel plate protection structure, belongs to medical devices technical field.
Background technology
Tradition blade plate is evenly equipped with multiple screw holes along the length direction of blade plate, and when treatment fracture, the middle part of blade plate leans against the fracture of long bone, and folding bone is fixed by lock screw in two ends, reaches the object that folding bone is repaired.Due to the suffered Stress non-homogeneity of blade plate, two ends stress is less, and it is larger with the suffered stress in corresponding middle part of fracturing, therefore in use procedure, plate body middle part is prone to the phenomenon that blade plate ruptures, especially while treating Fracture of femur, the normal stress in blade plate middle part is excessive and rupture, and causes treating unsuccessfully, causes larger misery and financial burden to patient.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of stress, structure of easy fracture not of dispersibling, to fix more reliably fracture end, guarantees the bone-fracture fixation steel plate protection structure of fractures effect.
This utility model adopts following scheme to realize: a kind of bone-fracture fixation steel plate protection structure, comprise the steel plate that is fixed on fractures side, described steel plate is provided with multiple constant worm pich hole A along its length, described steel plate is by being located at the upper of lock screw A in described screwed hole A and fractures, lower two ends connect, described fractures is provided with the interior plate that is positioned at steel plate inner side and the outer panel that is positioned at steel plate outside, on described interior plate and outer panel, be respectively equipped with at least two equidistant and be distributed in the screwed hole B at fractures two ends with steel plate upper screwed hole A, in described, outer panel is together fixed on the upper of fractures by lock screw B and steel plate, lower two ends.
Further, described interior plate upper/lower terminal is round end structure.
Further, described steel plate materials is titanium alloy, and described interior plate and outer panel material are Nitinol.
Further, the thickness of interior plate and outer panel, width and identical length are same, and the thickness of inside and outside side plate is 0.5-3mm, and width is 5-30mm, and length is 20-150mm.
Further, the thickness of described inside and outside side plate is 2mm, and the length of inside and outside side plate is longer than fractures length.
Compared with prior art; the utlity model has following beneficial effect: this bone-fracture fixation steel plate protection structure adopts steel plate medial and lateral reinforcement protection structure; medial and lateral reinforce simultaneously; be conducive to reduce the stress of steel plate, reduce the displacement of fracture, adopt the Nitinol of low elastic modulus to carry out reinforcement protection simultaneously; than the titanium alloy plate of using same elastic modelling quantity; further reduce main body steel plate stress, thereby effectively prevented the generation of blade plate phenomenon of rupture, guaranteed the therapeutic effect of fracture.
Accompanying drawing explanation
Fig. 1 is this utility model bone-fracture fixation steel plate protection structural representation;
Fig. 2 is the combination section of interior plate in this utility model, steel plate and outer panel;
Number in the figure explanation: 1-steel plate 2-fractures 3-interior plate 4-outer panel 11-screwed hole A 12-lock screw A 13-screwed hole B 14-lock screw B.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, this utility model be described in further detail.
As shown in Figure 1 and 2, a kind of bone-fracture fixation steel plate protection structure, comprise the steel plate 1 that is fixed on fractures 2 sides, described steel plate 3 is provided with multiple constant worm pich hole A (11) along its length, described steel plate 1 is by being located at the upper of the interior lock screw A (12) of described screwed hole A (11) and fractures 2, lower two ends are connected, described fractures 2 is provided with the interior plate 3 that is positioned at steel plate 1 inner side and the outer panel 4 that is positioned at steel plate 1 outside, on described interior plate 3 and outer panel 4, be respectively equipped with two equidistant and be distributed in the screwed hole B (13) at fractures 2 two ends with steel plate 1 upper screwed hole A (11), in described, outer panel (3, 4) by being positioned at fractures 2 both sides and being together fixed on the upper of fractures 2 near the lock screw B (14) of fractures 2 with steel plate 1, lower two ends, by in steel plate 1, outside reinforces, be beneficial to the stress that reduces steel plate 1, reduce the displacement of fracture and the fracture of main body steel plate 1.
Wherein be positioned at lock screw B (14) length on inside and outside side plate (3,4) than the long 1-5mm of all the other lock screw A (12) length.
In the present embodiment, described interior plate 3 upper/lower terminals are round end structure, to reduce the contact stress of interior plate 3.
In the present embodiment; described steel plate 1 material is titanium alloy; described interior plate 3 and outer panel 4 materials are Nitinol; adopt the inside and outside side plate of Nitinol (3,4) of low elastic modulus to carry out reinforcement protection; further reduce main body steel plate 1 stress; thereby effectively prevent the generation of bone-fracture fixation steel plate 1 phenomenon of rupture; improve the bulk strength of blade plate; and the biocompatibility of Nitinol and titanium alloy plate is suitable human body all; be the inside-fixture of generally acknowledged recommendation, guaranteed the therapeutic effect of fracture.
In the present embodiment, thickness, width and the identical length of interior plate 3 and outer panel 4 are same, and the thickness of inside and outside side plate (3,4) is 2mm, and width is 20mm, length is 60mm, and the length of inside and outside side plate (3,4) is longer than the length of fractured area.
In order to lock inside and outside side plate (3,4) and steel plate 1 simultaneously, lock screw B (14) need to pass through specialized designs and manufacture, reach on the head of a nail of lengthening lock screw B (14), and in the present embodiment, reach on lock screw B (14) head of a nail is than the long 4mm of head of a nail screw thread of common standard lock screw A (12), just can meet internally, lock when outer panel (3,4) and steel plate 1 fastening.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. a bone-fracture fixation steel plate protection structure, comprise the steel plate that is fixed on fractures side, described steel plate is provided with multiple constant worm pich hole A along its length, described steel plate is by being located at the upper of lock screw A in described screwed hole A and fractures, lower two ends connect, it is characterized in that: described fractures is provided with the interior plate that is positioned at steel plate inner side and the outer panel that is positioned at steel plate outside, on described interior plate and outer panel, be respectively equipped with at least two equidistant and be distributed in the screwed hole B at fractures two ends with steel plate upper screwed hole A, in described, outer panel is together fixed on the upper of fractures by lock screw B and steel plate, lower two ends.
2. bone-fracture fixation steel plate protection structure according to claim 1, is characterized in that: described interior plate upper/lower terminal is round end structure.
3. bone-fracture fixation steel plate protection structure according to claim 1, is characterized in that: described steel plate materials is titanium alloy, and described interior plate and outer panel material are Nitinol.
4. bone-fracture fixation steel plate protection structure according to claim 3, is characterized in that: thickness, width and the identical length of interior plate and outer panel are same, and the thickness of inside and outside side plate is 0.5-3mm, and width is 5-30mm, and length is 20-150mm.
5. bone-fracture fixation steel plate protection structure according to claim 4, is characterized in that: the thickness of described inside and outside side plate is 2mm, and the length of inside and outside side plate is longer than fractures length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053166.5U CN203693734U (en) | 2014-01-28 | 2014-01-28 | Bone setting steel plate protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053166.5U CN203693734U (en) | 2014-01-28 | 2014-01-28 | Bone setting steel plate protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203693734U true CN203693734U (en) | 2014-07-09 |
Family
ID=51044250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420053166.5U Expired - Fee Related CN203693734U (en) | 2014-01-28 | 2014-01-28 | Bone setting steel plate protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203693734U (en) |
-
2014
- 2014-01-28 CN CN201420053166.5U patent/CN203693734U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20160128 |
|
| EXPY | Termination of patent right or utility model |