论文部分内容阅读
目的:研究修复下颌骨骨缺损的新型磁牵张器。方法:选取钕铁硼永磁体作为牵张器驱动装置,与牵张板一起组成其主要结构,牵张板用于移动传送骨盘,外壳采用钛合金。建立小型猪颌骨缺损牵张模型,研究不同强度静磁场对小鼠成骨样细胞MC3T3E1的影响。应用SPSS13.0软件包对数据进行统计学分析。结果:新型磁牵张器能够达到动物实验牵张力要求(牵张力≥15N),牵张板位移控制在1 mm/次,小型猪传送盘移动良好,在一定强度范围内,静磁场具有促进成骨的作用。结论:新型磁牵张器具备牵张成骨实验要求,是理想的牵张成骨器材。
Objective: To study a new type of magnetic distractor for repairing mandibular bone defect. Methods: Neodymium iron boron permanent magnets were selected as the distractor driving device, together with the distraction plate to form the main structure. The distraction plate was used to move the pelvis and the shell was made of titanium alloy. To establish a miniature pig model of jaw osteogenesis defect and to study the effect of different static magnetic fields on the osteoblastic MC3T3E1 in mice. SPSS13.0 software package for statistical analysis of the data. Results: The new type of magnetic distractor can reach the requirement of animal experimental tension (stretching force ≥15N), the displacement of the distraction plate is controlled at 1 mm / time and the miniature pig tray moves well. Under a certain intensity range, The role of bone. Conclusion: The new magnetic distraction device with distraction osteogenesis experiment requirements, is the ideal distraction osteogenesis equipment.