Cervical anterior bone plate systemTechnical field
The invention belongs to clinical medicine spinal surgery cervical vertebra operating theater instruments decided at the higher level but not officially announced, relate to a kind of bone plate system, be specifically related to a kind of cervical anterior bone plate system.
Background technology
In anterior plate fixation, technique for fixing treatment prolapse of lumbar intervertebral disc, wound, tumor etc., be widely used in clinical.Due to human spine's special physiological structure and frequent activity, very high to the design of anterior plate fixation and requirements of weaving process, not only volume is little, and fatigue resistance is high, and must guarantee tight security.Existing blade plate mostly is metal bone fracture plate, and it is according to the shape of skeleton, and according to bionical designing, object is to reduce as far as possible the destruction of the product stress that causes due to skeleton bending, compression, rotation.
Existing blade plate need design difformity according to the difference of skeleton anatomical structure, the different parts used according to product, and the shape of predetermined blade plate, thickness and screw hole spacing and aperture, cost is higher, and the suitability is low.Therefore,, for the problem of above-mentioned appearance, just need a kind of technical scheme of solution.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of cervical anterior bone plate system is provided, when reaching fixed effect applicable to the skeleton of difformity structure.
The technical solution adopted for the present invention to solve the technical problems is: a kind of cervical anterior bone plate system is provided, comprise two synthetism plate bodys and for connecting the rotary connector of two synthetism plate bodys, described rotary connector is provided with position local device for the angle between locking bone fracture plate body, on two synthetism plate bodys, a screw fixed hole is respectively set, on the inwall of described screw fixed hole, is provided with the pressurization hole that screw thread forms.
Preferably, on the inwall of described screw fixed hole, be coated with macromolecular material cover layer.
Preferably, described macromolecular material is polyether-ether-ketone or polyethylene.
Preferably, described pressurization hole is inverted cone.
Preferably, described rotary connector is carbon fibre connector.
Preferably, described rotary connector is metal connecting piece.
Preferably, described rotary connector is chemical synthetic material connector.
The invention has the beneficial effects as follows: cervical anterior bone plate system structure provided by the invention is simple, safe, be applicable to clinical demand, can the angle between blade plate be regulated, when reaching fixed effect, applicable to the skeleton of difformity structure, possess stronger rigidity and the stronger suitability.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 be cervical anterior bone plate system of the present invention structural representation.
Number in the figure is described as follows:
10, synthetism plate body; 20, rotary connector; 30, locking device; 40, screw fixed hole; 50, pressurization hole; 60, macromolecular material cover layer.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.Those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this description.The present invention can also be implemented or be applied by the other different specific embodiment, and the every details in this description also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
As shown in Figure 1, a kind of cervical anterior bone plate system is provided, comprise two synthetism plate bodys 10 and for connecting the rotary connector 20 of two synthetism plate bodys 10, described rotary connector 20 is provided with position local device 30 for the angle between locking bone fracture plate body 10, one screw fixed hole 40 is respectively set on two synthetism plate bodys 10, on the inwall of described screw fixed hole 40, is provided with the pressurization hole 50 that screw thread forms.
In the present embodiment, on the inwall of described screw fixed hole 40, be coated with macromolecular material cover layer 60; Described macromolecular material is polyether-ether-ketone or polyethylene.
In addition, described pressurization hole 50 is inverted cone.Preferably, described rotary connector 20 is carbon fibre connector; Described rotary connector 20 also can be metal connecting piece; Described rotary connector 20 also can be chemical synthetic material connector.
Cervical anterior bone plate system structure provided by the invention is simple, safe, be applicable to clinical demand, can the angle between blade plate be regulated, when reaching fixed effect, applicable to the skeleton of difformity structure, possess stronger rigidity and the stronger suitability.
Above-mentioned explanation illustrates and has described some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can, in invention contemplated scope described herein, by technology or the knowledge of above-mentioned instruction or association area, change.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection domain of claims of the present invention.