Wallboard type screw internal fixing systemTechnical field
The present invention relates to a kind of wallboard type screw internal fixing system.
Background technology
At present, in fracture class operation, the mode such as fixed outside conventional selection expectant treatment, Plate internal fixiation, support, but itsThe theory still continued to use is that old AO theories-i.e. Titanic micro-plates are theoretical.This theory have ignored the effect of biomethanics, so as to leadIts union slowly even probability increase of bone not more is caused, recent fear is born a heavy burden so as to the muscular atrophy brought, at a specified future dateSteel plate fatigability increase cause the possibility of Plate break, therefore there is a lot of drawback in outmoded nail-plate internal fixation system.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming prior art, there is provided fixed in a kind of wallboard type screwSystem, it can realize oligodynamic effect, so as to accelerating bone healing, mitigate the pain of patient, bring good medical science to give treatment to effectFruit.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of wallboard type screw internal fixing system, it is wrappedAt least two wallboard type screws are included, the wallboard type screw includes：
Screw body；
Wallboard group, the wallboard group include left wall plate and right wall plate, and left wall plate and right wall plate are hinged in screw body,Between two adjacent wallboard type screws, the right wall plate of one of wallboard type screw and a left side for another wallboard type screwWallboard is provided with one by being spliced after rotation together, and between the right wall plate and the left wall plate when the right wall plate and the left wallPlate splices to be made to hammer into direction with necessarily relatively free in wallboard type screw between the right wall plate and the left wall plate when togetherThe free degree formation mechanism of degree.
Further provide a kind of concrete structure of free degree formation mechanism, the free degree formation mechanism include boss andThe groove chimeric with boss, the groove are trapezium structure, and the width H of the boss is more than the big bottom width degree W of the groove, andAnd the width H of the boss is less than the handle width w of the groove, when corresponding right wall plate and corresponding left wall plate splice,Corresponding boss and corresponding groove are fitted together to, and are had between corresponding right wall plate and relative two faces of corresponding left wall plateGap h.
Further, the gap h is 0.2mm~0.5mm.
Further, in splice right wall plate and left wall plate together, the boss is arranged on left wall plate, the grooveIt is arranged on right wall plate.
A kind of concrete structure of screw body is further provided, in same wallboard type screw, the screw bodyWith the head of a nail, left wall plate and right wall plate are respectively hinged on the head of a nail.
Further for that can limit right wall plate and left wall plate after splicing, length direction is (perpendicular to wallboard type screwHammer into direction) on movement, and constrain in the free degree hammered on direction, it is right in the right wall plate and left wall plate that splice togetherAlso linked together between wallboard and left wall plate by locked component.
A kind of concrete structure of locked component is further provided, the locked component includes at least one lock screw,The lock screw is screwed into right wall plate and left wall plate simultaneously.
Further for oligodynamic effect can be expanded to reasonable category, the purpose of fracture healing acceleration is reached, it is describedLocked component includes 4 lock screws, and 4 lock screws connect to form diamond structure.
After employing above-mentioned technical proposal, the present invention after operation is fixed, between its left wall plate and right wall plate for splicingHammering into has certain free degree on direction, this makes it possible to ensure that fracture end has oligodynamic effect, be so advantageous to fractureFast quick-recovery, there is experiment to prove 0.5Hz frequencies, scope 1mm fine motion, can effectively reduce healing time 6 weeks.
Brief description of the drawings
Fig. 1 is the structural representation of the wallboard type screw of the present invention；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is the structural representation of the wallboard type screw internal fixing system of the present invention；
Fig. 4 is Fig. 3 B-B sectional views；
Fig. 5 is Fig. 3 C to partial schematic diagram.
Embodiment
In order that present disclosure is easier to be clearly understood, it is right below according to specific embodiment and with reference to accompanying drawingThe present invention is described in further detail.
As shown in Fig. 1~5, a kind of wallboard type screw internal fixing system, it includes at least two wallboard type screws, the wallBoard-like screw includes：
Screw body 1；
Wallboard group, the wallboard group include left wall plate 21 and right wall plate 22, and left wall plate 21 and right wall plate 22 are hinged on spiral shellFollow closely in main body 1, between two adjacent wallboard type screws, the right wall plate 22 and another wall of one of wallboard type screwThe left wall plate 21 of board-like screw is provided with one by being spliced after rotation together between the right wall plate 22 and the left wall plate 21Make when the right wall plate 22 and the left wall plate 21 splice together between the right wall plate 22 and the left wall plate 21 in wallboard type screwThe direction that hammers into there is the free degree formation mechanism of certain relative freedom.
As shown in Figure 2,4, the free degree formation mechanism includes boss 211 and the groove 221 chimeric with boss 211, instituteIt is trapezium structure to state groove 221, and the width H of the boss 211 is more than the big bottom width degree W of the groove 221, and the boss211 width H is less than the handle width w of the groove 221, when corresponding right wall plate 22 and corresponding left wall plate 21 splice,Corresponding boss 211 and corresponding groove 221 are chimeric, and corresponding right wall plate 22 and relative two of corresponding left wall plate 21There is gap h between face.
The gap h is 0.2mm~0.5mm.
As shown in figure 4, in splice right wall plate 22 and left wall plate 21 together, the boss 211 is arranged on left wall plateOn 21, the groove 221 is arranged on right wall plate 22.
As shown in figure 1, in same wallboard type screw, the screw body 1 has the head of a nail 11, left wall plate 21 and right wallPlate 22 is respectively hinged on the head of a nail 11.
As shown in figure 5, in splice right wall plate 22 and left wall plate 21 together, between right wall plate 22 and left wall plate 21 alsoLinked together by locked component.
As shown in figure 5, the locked component includes at least one lock screw 3, the lock screw 3 is screwed into right wall simultaneouslyIn plate 22 and left wall plate 21.
In order to expand oligodynamic effect to reasonable category, the purpose of fracture healing acceleration is reached, as shown in figure 5,The locked component includes 4 lock screws, 3,4 connections of lock screw 3 and forms diamond structure.
The implementation process of the wallboard type screw internal fixing system of the present invention is as follows：
The length extended during concrete operations according to fracture and position, the wallboard type screw of corresponding length is selected,Drilled respectively at fracture both ends and be screwed into screw body 1；By the abduction of right wall plate 22 of the wallboard type screw on the left of fracture end to hang downStraight position, the abduction of left wall plate 21 of the wallboard type screw on the right side of fracture end after both coincide, are screwed into corresponding lock to upright positionDetermine screw 3；Fractured according to different parts and select arm plate bolt quantity, complete connection；The left wall plate 21 of the wallboard type screw in left sideAnd the right wall plate 22 of the wallboard type screw on right side is covered with the arm plate to match, and it is screwed into corresponding lock screw 3；It is last completeIntegral operation, wallboard type screw internal fixing system are formed.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry outIt is further described, should be understood that the specific embodiment that the foregoing is only the present invention, is not limited to thisInvention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in this hairWithin bright protection domain.