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水压机涨力柱螺帽紧固方法分析
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作者 刘玉珍 孟林 《中国设备管理》 1999年第1期26-27,共2页
通过对水压机涨力柱螺帽松动原因及传统的涨力柱螺帽紧固方法的分析,指出了影响涨力柱螺帽松动的原因及松动后造成的危害;论述了紧固涨力柱螺帽的最佳方法——综合紧固法的步骤、涨力柱受力均匀标准和测试调整方法。确定了加热紧固49MN... 通过对水压机涨力柱螺帽松动原因及传统的涨力柱螺帽紧固方法的分析,指出了影响涨力柱螺帽松动的原因及松动后造成的危害;论述了紧固涨力柱螺帽的最佳方法——综合紧固法的步骤、涨力柱受力均匀标准和测试调整方法。确定了加热紧固49MN水压机涨力柱螺帽时内外螺帽间弹性伸长量、螺帽旋转角度等参数的数值。 展开更多
关键词 涨力柱 中心失调 水压机 螺帽螺固
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Failure mode and effect analysis of the risk management of non-integral-dosage drug dispensing in PIVAS
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作者 Kuikui Geng Juan He +3 位作者 Sheng Rong Zhaohu Jia Xiangxiang Zhang Tianlu Shi 《Journal of Chinese Pharmaceutical Sciences》 CAS CSCD 2024年第7期597-608,共12页
To mitigate risks associated with the prescription examination,marking,dispensing,checking,and review of non-integral-dosage drugs in Pharmacy Intravenous Admixture Service(PIVAS),we formed a project team.Employing th... To mitigate risks associated with the prescription examination,marking,dispensing,checking,and review of non-integral-dosage drugs in Pharmacy Intravenous Admixture Service(PIVAS),we formed a project team.Employing the failure mode and effect analysis(FMEA)management method,we identified potential risks in four critical steps of the non-integral-dosage drug dispensing process within PIVAS drug management:prescription verification,mixed allocation,and verification.For each step,we assigned scores for severity,incidence,and detectability,subsequently calculating the Risk Priority Number(RPN)to prioritize identified risks.Targeted measures for improvement were developed for steps with the highest RPN values.A total of 31 risk factors were documented in the management of non-integral-dosage drugs,with the dispensing process being particularly vulnerable.Specific measures were devised for eight high RPN risks.Following a 3-month optimization and improvement period,RPN values and incidences of internal differences were significantly reduced.The implemented measures demonstrated effective risk control.Notably,we established a comprehensive conversion system for partial-dose drug dispensing,directly translating into a volume of suction fluid for dispensing personnel based on doctor orders.This eliminated the need for manual secondary calculations,thereby standardizing and automating the dispensing of non-integral-dosage drugs in PIVAS.Simultaneously,our project team conducted a dissolution test on 23 types of drugs with non-integral dosage,revealing that the solvent volume increased for 11 types after dissolution.The dosage conversion for partial dosage was recalibrated based on the volume of the final solution to ensure dosage accuracy.Through the application of failure mode and effect analysis,we systematically managed the risks associated with non-integral-dosage drugs in PIVAS.This approach addressed safety concerns in the dispensing process,reduced errors,and ensured the safe and precise administration of medication to patients. 展开更多
关键词 PIVAS FMEA The non-integral-dosage drugs Risk management DISPENSING
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