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OSAHS口腔矫治器的创新设计

Innovative Design of OSAHS Oral Appliance

【作者】 张婷

【导师】 马力辉;

【作者基本信息】 河北大学 , 测试计量技术及仪器, 2013, 硕士

【摘要】 阻塞性睡眠呼吸暂停低通气综合征是一种在睡眠过程中会伴有呼吸暂停的的疾病。并能导致多种其他严重心脑血管疾病,严重的患者会在睡眠中窒息死亡。治疗的方法中,最方便、简单、有效的是佩戴口腔矫治器治疗。随着技术的发展,从上世纪八十年代至今,已经有很多学者、发明家提出了新型口腔矫治器,但是几乎每种都只是停留在理论上,实际应用并不能行得通。目前市面上最常见的是可调节式下颌前移双合板矫治器,但其佩戴后会有流口水、牙齿酸痛以及口腔肌肉麻木、颞颌关节不适等症状。选择用其进行治疗的患者很少。本研究采用TRIZ理论与实际试验相结合的方法,在可调节式下颌前移双合板矫治器的基础上对其进行优化。从结构和材料的选择上分别进行仿真。通过有限元计算,验证其可行性。论文工作的主要内容包括以下几个方面:(1)预测了口腔矫治器的技术成熟度。本文根据TRIZ理论中S曲线,通过归纳总结大量相关专利,预测出口腔矫治器的技术成熟度处于婴儿期向成长期过渡阶段,并制定出其技术进化路线为增加自由度个数并减小体积。(2)设计具体试验方案,验证口腔矫治器的有效性。联合医院对被试验者进行试验记录,通过绘制血氧饱和度变化曲线图,证明口腔矫治器的有效性。并通过被试验者反馈,提出相关改进方向。(3)建立原矫治器模型并仿真。对模型赋予不同非金属材料属性,通过有限元计算的结果,根据位移改变量,选出其可能使用的材料为POLYCARBONATE-GF。(4)提出具体改进方案并仿真。根据技术路线、被试验者反馈意见和人类牙齿结构,提出具体改进方案。对于改进的结构,选择POLYCARBONATE-GF材料和多种医用金属材料,分别进行计算。通过位移变化和最大应力值得出,当材料为POLYCARBONATE-GF时,不能满足材料抗拉强度;选择金属材料钛合金TC4时,可以满足使用要求。本文设计的新型口腔矫治器相对原矫治器减小了体积,由间隔调节变成可连续调节,改变了固定位置,增加了锁紧部件。使其佩戴更方便舒适,调节更容易。本设计为后续的矫治器开发提供了数据模型。

【Abstract】 Obstructive sleep apnea hypopnea syndrome is a breathing pauses during sleepassociated with disease. It can lead to a variety of other serious cardiovascular andcerebrovascular disease, and seriously died of suffocation during sleep. The most convenient,simple, and effective method of treatment is wearing oral appliance therapy.With the development of the technology, since the eighties of the last century, there havebeen many scholars, inventors proposed new types of oral appliance, but almost each one wasjust in theory without practical application or feasibility. At present the most common oralappliance is the adjustable mandibular advancement double plywood appliance, but it leads todrooling, tooth pain and oral muscle numbness, temporomandibular joint discomfort andother symptoms. Patients select oral appliance to treat are rare.Using the method of TRIZ theory combining with practice, optimization is based onadjustable jaw forward double plywood appliance. Simulation is respectively from the choiceof structure and materials. Feasibility is verified by finite element method. The main contentas follows:(1) Oral appliance technology maturity is predicted. A large number of related patentsbased on the S-curve in the TRIZ theory are summarized by induction, and predicting the oralappliance technology maturity is in the transitional stage from stage of infancy to the growth,and making the technology development route is to increase the number of the freedomdegree and reduce the volume.(2) Verify the effectiveness of the oral appliance through the design of specific testprograms. United hospital, a test subject is record by drawing oxygen saturation curvediagram to prove the effectiveness of oral appliance. Make improvements direction throughfeedback of the test subject.(3) The original appliance model is establish and simulated. The model is given differentnon-metallic material properties, and the results are calculated by the finite element. Based on the amount of displacement changes, POLYCARBONATE-GF is selected as the material maybe used.(4) Specific improvement programs is put forward and simulated. According astechnology route, test feedback and human teeth structure, specific improvement program isput forward. Material of POLYCARBONATE-GF and a variety of medical metal material areselected for improved structure and calculated respectively. Through displacement and theworth of maximum stress, POLYCARBONATE-GF cannot meet the tensile strength; whenthe material is titanium TC4, it meets use requirements.In this paper, the design of new oral appliance is compared with the original appliance.The volume is reduced. The interval adjustment is turned into continuous adjustment. Thefixed position is changed, and locking components is added. Make it more convenient andcomfortable to wear and easier to adjust. The development of the follow-up of the applianceis provided a data mode by the design.

  • 【网络出版投稿人】 河北大学
  • 【网络出版年期】2013年 S2期
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