JG-1型内窥镜干燥器故障分析及检修

我院于2000年购入JG-1型内窥镜干燥器2台,随着胃肠疾病的增多,内窥镜干燥器使用频率高,仪器故障发生率相对较高,现就常见故障分析及检修经验总结如下： 1 故障现象一 电机转动,充气管无气体产生,压力指示表无指示.     

欧洲法院的SPC主张将推进生物制药

如果欧洲法院（EcoJ）同意司法部长Philippe Leger于2005年11月24日提出的主张，那么制药厂商在更改产品剂型时，可以获得附加专利保护资格。     

未雨绸缪与防微杜渐--谈医疗设备的维护与保养

随着科学技术日新月异地发展，容纳了尖端科技的医疗设备已经成为诊治病人必不可少的工具，其状态的好坏往往是影响医疗工作成败的关键。如何保证这些设备长期稳定地为临床服务，是广大维修人员必须时刻面对和认真思考的问题。根据以往的经验，要使设备常用常新，最有效的手段就是采用未雨绸缪与防微杜渐的方法来维护保养设备。只有这样才能厦时消除故障隐患、防止故障进一步扩大，才能有效降低维修成本，进而显著提高设备使用率、延长设备的使用寿命。下面我将从多个方面具体谈谈如何开展积极的维护保养工作。     

KODAK自动洗片机故障拾零

现象1原因现象2原因片机。不出胶片。烘干传送箱齿轮偏芯，胶片受阻。胶片在显影槽内受阻。胶片送入洗片机时，没有按顺序进入洗片机。     

该如何保护好您的“救心药”

硝酸甘油对于心脏病患者来说可算是救命药了，查阅硝酸甘油片剂说明书，一般会注明药片的有效期为1年，可在临床实践中，不少医生发现，硝酸甘油片剂药效下降很快，甚至开封后3个月基本就无效了。     

Influence of moderate hypothermia on cerebral oxygenation in pigs with intracranial hypertension

BACKGROUND: Moderate hypothermia is one of the effective therapeutic methods for head injury in recent years, there are many mechanisms of moderate hypothermia for brain protection, and its influence on cerebral oxygenation is also one of them. OBJECTIVE: To observe the influence of moderate hypothermia on cerebral oxygenation of animals with acute intracranial hypertension, and further investigate the protective mechanism of moderate hypothermia. DESIGN: A randomized controlled trial. SETTING: Department of Neurosurgery, Renji Hospital affiliated to the Medical College of Shanghai Jiao Tong University. MATERIALS: Twenty healthy little pigs, either male or female, weighing 4.5–5.5 kg, were used. Neurotrend-typed multiparameter monitoring system (Diametrics Company, British); CMA/100 micro-injection pump (Carnegie Company, Sweden). METHODS: The experiment was conducted in the Changzheng Hospital affiliated to the Second Military Medical University of Chinese PLA in November, 2001. The pigs were randomized into two groups: the normothermia group (control group, n =10) and moderate hypothermia group (n =10). ① Bilateral femoral arteries were separated, one was connected to pressometer for monitoring mean arterial pressure (MEP), and the other for analysis of blood gases [including peripheral blood pH value, arterial partial pressure of carbon dioxide (PaCO2), arterial partial pressure of carbon dioxide (PaCO2), HCO3–]. ② Rectal temperature was monitored with mercurial thermometer. ③ Intracranial pressure was monitored using Camino optic ICP probe placed in the subdural space. ④ Neurotrend multiparameter monitoring sensor was inserted into the white matter for about 4 cm to determine cerebral perfusion pressure (CPP, CPP=MAP(ICP), brain tissue partial oxygen pressure (PO2), partial pressure of carbon dioxide (PCO2), HCO3– and brain temperature. The rectal temperature of animals in the moderate hypothermia group was lowered to 34 ℃ using ice bags, and the body temperature was maintained at 33–35 ℃ for 2 hours. The changes of the parameters were observed continuously, and the pigs in the normothermia group were not treated with cooling. MAIN OUTCOME MEASURES: ① MAP, ICP, rectal temperature, CCP; Indexes of cerebral oxygenation detected with Neurotrend-typed multiparameter monitoring system; ② Results of blood gases analysis in the moderate hypothermia group. RESULTS: All the 20 pigs were involved in the analysis of results. ① MAP, ICP, rectal temperature, CCP and indexes of cerebral oxygenation: In the moderate hypothermia group, the ICP after cooling was obviously lower than that before cooling [(3.31±1.19), (5.33±0.95) kPa, P < 0.05], CCP was higher, brain tissue PCO2 [(12.03±1.73), (10.59±2.01) kPa, P < 0.05], and brain tissue pH value was higher [(7.03±1.63), (9.40±1.30) kPa, P < 0.05], whereas the brain temperature was decreased as compared with that before cooling [(34.9±0.3), (37.2±0.2) ℃, P < 0.05]. ② Results of blood gases analysis in the moderate hypothermia group: There were no significant differences in the parameters of peripheral arterial blood gases analysis before and after cooling in the moderate hypothermia group (P > 0.05) CONCLUSION: Moderate hypothermia will not impair the cerebral oxygenation, and it can reduce brain tissue CO2 and decrease brain tissue acidosis.     

芪桂益脉灵对大鼠冠脉结扎诱发心律失常及心肌细胞保护作用的影响

1　材料　动物 :Wistar种大白鼠 ,雌雄不拘 ,2 0 0～ 2 5 0g由黑龙江中医药大学动物实验中心提供。药品试剂 :芪桂益脉灵由黄芪 10 0g、桂枝2 0g、苦参 2 0g、三七 15g、黄连 7 5g、龙齿 2 0g、党参 5 0g、麦冬 15g、五味子 15g、炒枣仁 2 0g 10味中药组成 ,经水煎浓缩 ( 1 2 5g生药 /ml)供实验用。生化指标测定 :SOD、MDA、ATP酶试剂盒 ,购于南京建成生物工程研究所 ,国产。心肌组织凋亡细胞检测 :凋亡位末端检测试剂盒 ,德国宝灵曼公司。光学摄影显微镜 :日本Olympus。2　方法　取大鼠 2 1只 ,随机分为 3组。假手术组 (灌服同体积生…     

口腔综合治疗椅特殊故障的处理

由尔登Eurodent口腔治疗椅的传动系统采用液压设计，噪音低，运行平稳，整机工作性能好，使用中很少出现大的故障。但由于使用时间较长，电气元件到了易损期，造成椅子不能升降或仰卧的通病。笔者碰到多起这类故障，经处理后设备能正常使用，且效果满意。     

KonicaLA-10A激光照相机1例罕见故障

故障现象故障开始一段时间，一周内偶尔出现一张CT或MRI片只打印整片图像的上部2／3，下部1／3完全空白；之后逐渐频繁，有时一天多达五、六次之多，皆无报错信息。故障分析拆卸前后机壳，使用几张干净废片观察相机的工作过程，未发现胶片打印和传送异常，检测PCB-4     

中风毒邪论与神经保护治疗的研究

中风毒邪论是一种与传统中医中风病理有所不同的理论 ,在中风毒邪论指导下形成解毒通络方是较为理想的神经保护剂 ,可解决目前神经保护治疗的主要障碍 ,有望成为提高中医治疗中风急性期疗效的关键