细节管理在消毒供应中心去污区的应用

目的探讨细节管理在消毒供应中心的应用。方法对凉山州第一人民医院消毒供应中心去污区工作人员的工作内容和流程、岗位作业要求及质量标准按细节管理要求进行针对性的修订并完善,强调执行落实,比较细节管理前后在职业暴露、器械清洗后返洗件数、工作人员对专业知识掌握的程度、设备仪器维护次数、回收器械错误率及器械报损数进行对照。结果职业暴露次数从12人降低至3人;器械清洗质量提高,工作效率提高,器械返洗率从6.2‰降至0.99‰;工作人员专业知识结构明显提升;仪器设备维护到位,维修频率减少5次;器械报损率下降77%;投入清洗用物资损耗降低,与细节管理前比较,差异有统计学意义。结论该院在消毒供应中心去污区实施细节管理,有助于提高器械清洗质量和工作效率。     

Flow and Particle Deposition Patterns in a Realistic Human Double Bifurcation Airway Model

Velocity profiles, local deposition efficiencies (DE), and deposition patterns of aerosol particles in the first three generations (i.e., double bifurcations) of an airway model have been simulated numerically, in which the airway model was constructed from computed tomography (CT) scan data of real human tracheobronchial airways. Three steady inhalation conditions, 15, 30, and 60 L/min, were simulated and a range of micrometer particle sizes (1–20 μm diameter) were injected into the model. Results were then compared with experimental and other numerical results which had employed either similar model geometry or test conditions. The effects of inhalation conditions on velocity profiles and particle deposition were studied. The data indicated that the local deposition efficiencies in the first bifurcation increased with a rise in the Stokes number (St) within St range from 0.0004 to 0.7. Within the same St range, DE in the second bifurcations (both left and right) was dropped dramatically after St increased to 0.17. Also, the second bifurcation in the right side (B2.1, closer to first bifurcation than left side, B2.2) was found to show a much higher (almost double) DE than the left side. This may be due to the fact that the left main bronchus is longer and has greater angulation than the right main bronchus. Generally, the present simulation using a computational fluid dynamic (CFD) technique obtained concurrent results with subtle differences compared to other works. However, due to omission of larynx in the model, which is known to significantly modify airflow and hence particle deposition, the present model may only serve as the “stepping stone” to simulating and analyzing dose-response or inhalation risk assessment visually for clinical researchers.     

清洁级SD大鼠标准生物学指标的建立

目的:建立清洁级SD大鼠的正常生理、生化指标。方法:分别选取6、12、18、30周龄的清洁级SD大鼠,雌雄各20只。测量动物的生长曲线、体重回归方程、脏器系数和血常规和血清生化等指标。结果:雄性动物的体重增长趋势比雌性动物高;随着年龄增长,脏器系数逐渐减低。大小肠长度随年龄增长增加,每百克体重大、小肠长度随年龄增大降低。     

清理肠道汤治疗急性泄泻166例疗效分析

用清理肠道汤治疗急性泄泻166例,其中临床治愈106例(占63.86％);显效44例(占26.51％);好转11例(占6.63％);无效5例(占3.01％);总有效率为96.99％。临床将急性泄泻分湿热、寒湿及伤食泻三型。本方对湿热型泄泻效果最佳。与黄连素片对比,本方在止泻、缓解腹痛、解毒、利湿等方面,均优于黄连素片。两组对比有显著差异(p<0.05)。     

Excimer laser cleaning of mold-contaminated paper: Sterilization and air quality considerations

The Excimer laser can be used to remove biological debris from underlying substrates. The ability of the krypton fluoride (KrF) Excimer laser to removeAspergillus niger mold, which had been grown on filter paper, was evaluated in the present study. The air in the immediate vicinity of the laser cleaning apparatus was sampled to determine if viable mold fragments were released into the air during treatment. It was found that filter paper could be sterilized with the Excimer laser wavelength with the proper selection of parameters. During this process, viable spores and mold fragments are released into the atmosphere, and pose a relative risk unless proper measures to prevent contamination of the work area are taken.     

万安水库库底卫生清理效果分析

目的：分析库底卫生清理的直接和间接效果。方法：作清理前后污水、污土细菌学分析；蓄水前后库水水质分析；蓄水发电后库区与安置区病媒生物分析、传染病学分析、人口学指标分析。结果：清理后，污水细菌总数减少92．50％，大肠菌群减少96．94％；污土细菌总数减少77．05％。大肠菌群减少46．38％。蓄水后库水水质优于截流前。库区内的鼠、蚊种类及密度与安置区相近。蓄水前后安置区与库区的传染病发病率无明显差异。结论：库底卫生清理能有效地控制病原微生物，达到保障人群身体健康的目的。     

The prevalence and distribution of gingival recession in subjects with a high standard of oral hygiene

Abstract The aim of this study was to evaluate the prevalence and the development/progression of attachment loss and gingival recession at buccal tooth surfaces in a population sample with a high standard of oral hygiene. An additional aim was to study the relationship between attachment loss and gingival recession. The subject sample examined comprised 225 regular denial care attendants at 12 community dental clinics in Sweden. Ail subjects were subjected to a baseline examination in 1977–78 and were re-examined after 5 years and 12 years. The clinical examinations involved assessment of plaque, gingivitis, probing depth, probing attachment loss and gingival recession. A full-mouth set of intra-oral radiographs was obtained at each examination and used for determination of the height of periodontal bone support. The results of the cross-sectional and longitudinal analyses performed showed that in subjects with a high standard of oral hygiene (i) buccal gingival recession was a frequent finding, (ii) the proportion of subjects with recession increased with age. (iii) the prevalence as well as the incidence of recessions within the dentition showed different patterns depending on age, (iv) sites with recession showed susceptibility for additional apical displacement of the gingival margin and (v) loss of approximal periodontal support was associated with gingival recession at the buccal surface.     

先天性巨结肠患儿清洁灌肠法的研究

清洁灌肠是先天性巨结肠常用的首要辅助治疗方法，是保证手术顺利进行、减少术后并发症的必要的术前准备。分析了先天性巨结肠清洁灌肠的材料及方法。     

IVP造影前清洁肠道的两种方法比较

目的为达到IVP造影前排空大便。方法将 10 0例IVP造影病人随机分实验组 (A组 )和对照组 (B组 )。A组用 0 9%盐水清洁灌肠 ,B组用番泻叶冲服。结果A组与B组X线摄片清晰度比较。A组比B组较有显著差异 ,P <0 0 5。结论IVP造影前用 0 9%盐水清洁肠道比番泻叶冲服泌尿系的显示更清楚 ,病人也容易接受。