我国医疗器械数字化技术发展中存在的主要问题及原因

本文提出了我国医疗器械产业中数字化技术发展中存在的主要问题，并分析了问题产生的原因。     

Portaclamp in video-assisted minimally invasive cardiac surgery: Surgical technique and preliminary clinical experience

Video-assisted minimally invasive cardiac surgery (VAMICS) is currently performed with various indications. However, despite the increasing evidence of its effectiveness, new approaches have to be defined to simplify this procedure, minimize its potential complications and limit its costs, for a wider use in the surgical community. The limited access to the aorta is a key point in VAMICS and mandates specific clamping modalities with their own limitations, costs and drawbacks. The Portaclamp (Cardio Life Research SA, Louvain la Neuve, Belgium), a new autoguided extravascular aortic cross-clamping system, has been recently proposed to facilitate VAMICS. Herein, we describe the Portaclamp approach and report our indications and preliminary clinical experience so to define its role in VAMICS.     

现代管理学及其在医学技术装备管理中的应用

当今医学技术装备迅速发展,让设备的使用者和管理者都面临着很大的挑战,因此,探索现代管理的规律及其在医学技术装备管理这个专门领域的实际运用,是为了对日益复杂的医学技术装备进行科学管理,以适应我国卫生事业发展的需要。     

医疗器械包装设计浅谈

本文介绍了医疗器械之无菌包装系统的设计之关键要素和要求,介绍了目前流行的灭菌方式以及对无菌包装系统的要求和影响。本文最后还列举了常见的医疗器械包装系统。     

Mechanical Characterization of an In Vitro Device Designed to Quantitatively Injure Living Brain Tissue

Due to the nonlinear, viscoelastic material properties of brain, its mechanical response is dependent upon its total strain history. Therefore, a low strain rate, large strain will likely produce a tissue injury unique from that due to a high strain rate, moderate strain. Due to a lack of current understanding of specific in vivo physiological injury mechanisms, a priori assumptions cannot be made that a low strain rate injury induced by currently employed in vitro injury devices is representative of clinical, nonimpact, inertial head injuries. In the present study, an in vitro system capable of mechanically injuring cultured tissue at high strain rates was designed and characterized. The design of the device was based upon existing systems in which a clamped membrane, on which cells have been cultured, is deformed. However, the present system incorporates three substantial improvements: (1) noncontact measurement of the membrane deflection during injury; (2) precise and independent control over several characteristics of the deflection; and (3) generation of mechanical insults over a wide range of strains (up to 0.65) and strain rates (up to 15s^–1). Such a system will be valuable in the elucidation of the mechanisms of mechanical trauma and determination of injury tolerance criteria on a cellular level utilizing appropriate mechanical injury parameters.     

颈动脉狭窄成形术中的支架和脑保护装置选择

颈动脉狭窄是缺血性脑卒中的主要发病原因之一，而颈动脉支架及其脑保护装置是经血管内治疗颈动脉狭窄的有益材料。通过了解和熟悉不同类型的支架和脑保护装置的特点、特性、应用方法和并发症预防．有助于提高颈动脉狭窄成形治疗的临床水平。     

直线加速器剂量监测系统问题的分析

目的:通过分析直线加速器的电离室“Inter lock#27 HIGH VOLTAGE O.C”问题,引起设备中断使用的故障,用简单的测量手法剖析该装置,找出问题元件,快速解决故障过程,以供同业参考,以达到节省人力物力和时间。方法:当加速器出现“Inter lock#27 HIGH VOLTAGE O.C”中断的连锁,以短路交换代替法、万用表跟踪测量供电装置上参数的改变。分析故障现象、根据电路指向,找出问题关键。结果:分析检查得出的数据和由短路代替法可见结果,清楚问题主要发生在某一电离室上,而非在供电装置上。结论:直接观察直线加速器出现的故障现象,首先考虑故障是否发生在电离室上,利用短路代替法、万用表跟踪测量法,可快速把情况了解,解决问题。     

Observation on therapeutic effect of magnetic acupuncture treatment of simple obesity complicated with hyperlipidemia

将60例单纯性肥胖症并发高脂血症的患者,随机分为磁针组和对照组.观察肥胖指标及血脂指标的改善情况.磁针组具有减肥效应的同时,在改善患者的血脂指标胆固醇(TC)方面明显优于对照组(P＜0.05).