Reverse engineering techniques applied to a human skull,for CAD 3D reconstruction and physical replication by rapid prototyping

The production of a copy of an existing object of complex shape is one of the typical applications of the integration between two modern computer-based technologies, reverse engineering (RE) and rapid prototyping (RP). The method is extremely versatile and can be used in various applicative domains (e.g. replacement of anatomical parts with artificial prostheses, replication of skeletal remains). Two different acquisition techniques of images of a skull, by laser and by CT scan, were compared to ascertain which enabled more accurate reproduction of the original specimen. The skull was chosen due to it being the body part most often used in medico-legal investigations (for personal identification, skull-photo superimposition techniques, forensic art, etc). Comparison between the copy and the original yielded satisfactory results for both techniques. However, CT scanning demonstrated some advantages over the laser technique, as it provided a cleaner point cloud, enabling shorter pre-reproduction processing times, as well as data on the internal parts, which resulted in the reproduction of a more faithful copy.     

智能化人体排泄护理仪KAP认知调查分析

[目的]了解民众对新研发的高新护理仪器———智能化人体排泄护理仪的认知现状。为其进一步研发和临床推广应用提供可资借鉴的实证依据。[方法]采用随机抽样的方法对浙江省内18岁以上具有行为能力的自愿参加本项目的公民进行问卷调查。[结果]75.8%的民众没听说过人体排泄护理仪,83.1%的民众想了解该护理仪；87.3%的人建议大小便失禁病人使用该机器；95.5%的调查对象对于人体排泄护理仪的推广持支持态度。[结论]虽然民众对护理仪认知不足,但对其生产及推广持积极的肯定态度。因此,建议加快进行该产品的设计与临床应用推广工作,尽早造福二便失禁病人,提高他们的舒适度和生活质量。     

新疆健康扶贫模式:结核病精准服务平台

通过对国内尤其是新疆结核病现状进行分析,阐述通过大数据和人工智能技术构建结核病精准防控体系，搭建“大数据智能监测、AI辅助诊断、AI临床诊疗管理、康复随访干预”四位一体，探索临床诊疗和公共卫生数据整合衔接的新疆模式。认为精准平台有利于早发现、早诊断，使上报，转诊、治疗、随访实现全流程的闭环管理，为西部地区传染病防治提供借鉴     

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目的 探讨机用PathfileTM镍钛锉联合手用ProTaper镍钛器械在磨牙狭窄根管的预备效果。方法 选择2011年8月至2012年2月广州市天河区人民医院口腔科门诊需行根管治疗的磨牙根管狭窄患者125例(患牙125颗),采用PathfileTM镍钛锉进行根管预处理,以手用Pro Taper镍钛器械完成根管预备,侧向加压技术充填根管,根据治疗前后的X线片评价根管预备和充填效果。结果 125颗患牙的419个根管中,409个形态好,7个未能完全疏通,无台阶、根尖堵塞、根管偏移及侧壁穿孔等并发症发生,有3根器械折断于根尖段。恰填403个根管,10个根管因未完全疏通、无法到达根尖孔或断针而欠填,6个根管超填。结论 采用机用PathfileTM镍钛锉疏通狭窄根管的根尖段后再以手用ProTaper镍钛器械完成根管预备,可获得良好的成形效果且较少出现并发症。