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题名TDCS/CTC综合维护管理系统的研究与实践
被引量:2
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作者
杨光虎
张杰
黄耀欢
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机构
武汉铁路局电务处
武汉铁路局电务检测所
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出处
《铁道通信信号》
2013年第5期58-60,共3页
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文摘
TDCS/CTC系统作为一种铁路列车调度指挥信息化技术装备,在全路运输调度生产组织中得到广泛应用,已成为铁路信息化建设重要组成部分。面对不间断运行的TDCS/CTC系统,结合现场工作特点,经过2年多的反复研究和实践,摸索出一种符合实际需求的维护管理方式和技术方法,简称"5+1"综合维护方法,改进了维护管理手段,实现了系统的集中监控。
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关键词
列车调度指挥系统
调度集中
“5+1”维护管理方法
集中监控
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Keywords
TDCS
CTC
5 + 1 maintenance management method
Centralized monitoring
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分类号
U284.59
[交通运输工程—交通信息工程及控制]
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题名经皮肾镜取石术中皮肾通道丢失的处理及原因分析
被引量:4
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作者
傅崇德
李涛
陈广瑜
魏乔红
汤尧
焦林
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机构
西安航天总医院泌尿外科
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出处
《现代泌尿外科杂志》
CAS
2016年第12期943-946,共4页
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文摘
目的 探讨经皮肾镜取石术中皮肾通道丢失的处理措施,并进行原因分析。方法 回顾性分析2009年9月至2015年12月微通道经皮肾镜取石术(mPCNL)456例,术中因各种原因致皮肾通道丢失13例(2.85%),其中通道建立过程中丢失5例(38.4%),通道建立后丢失8例(61.6%),术中采用组织层次辨别法或美蓝示踪法找回皮肾通道,通道找回失败者重新穿刺建立通道或二期手术处理。结果 13例皮肾通道丢失病例,导丝移位致丢失3例(23.1%),剥皮鞘拖出致丢失7例(53.8%),扩张过深致丢失3例(23.1%)。其中学习曲线早期(〈100例)、中期(100~300例)、后期(〉300例)者分别为8例(61.5%)、4例(30.8%)、1例(7.8%)。采用两种方法成功找回通道9例(69.2%),通道找回失败者4例重新穿刺成功3例(23.1%),因持续出血终止手术者1例(7.7%)。一期找回通道9例及重新穿刺3例均成功实施手术,术中出血量约50~300(121.0±64.6)mL,通道重新建立时间5~60(24.7±16.0)min,总手术时间85~225(116.0±34.2)min,肾造瘘管留置时间4~30(7.9±9.5)d,术后住院时间5~12(6.4±2.5)d,结石残留3例,一次性清石率75%,其中1例于术后1周二期手术取石,2例术后1月辅助体外冲击波碎石(ESWL),术后3月复查均无结石残留,总清石率100%。1例终止手术者,术后保守治疗,3月后再次mPCNL成功。结论皮肾通道丢失多发于学习曲线早期,多由术中操作不当导致,通道丢失后,采用组织层次辨别法或美蓝示踪法重新找回通道是可行的,如不成功可重新穿刺或二期手术。
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关键词
经皮肾镜取石术
皮肾通道丢失
肾结石
输尿管上段结石
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Keywords
ObjectiveTo explore the causes of percutaneous-renal pathway loss in percutaneous nephrolithotomy (PCNL),and to analyze its management. methodClinical data of 456 patients with minimally invasive PCNL (mPCNL) treated during Sept. 2009 and Dec. 2015 were retrospectively analyzed. Of them,13 cases (2.85%) had percutaneous-renal pathway loss due to various causes. The pathway was lost in 5 cases (38.4%) when it was established,and in 8 cases after it was established (61.6%). The pathway was regained using identification of tissue layer or methylene blue tracer technique. In failed cases,the pathway was reestablished by re-puncture or two-stage operation. ResultsThe causes of pathway loss included moving of guidewire in 3 cases (23.1%),pulling out of the sheath in 7 cases (53.8%),unsuitable dilatation in 3 cases (23.1%). The loss occurred in early learning curve in 8 cases (61.5%),in middle learning curve in 4 cases (30.8%),in later learning curve in 1 case (7.8%). The pathway were regained in 9 cases (69.2%) using the two methods,in 3 cases (23.1%) using re-puncture. One patient was forced to end operation because of continuous bleeding (7.7%). The intraoperative bleeding volume was 50-300(121.0±64.6)mL,time to reestablish pathway was 5-60(24.7±16.0)min,the total operation time was 85-225(116.0±34.2)min,nephrostomy tube indwelling time was 4-30(7.9±9.5)d,postoperative hospital stay was 5-12(6.4±2.5)d. Residual stones were found in 3 cases. The stone clearing rate was 75%. One patient underwent two-stage operation and two patients underwent excorpereal shock wave lithotripsy (ESWL) after 1 week,and no residual stones were found 3 months after operation. One patient who ended operation underwent conservative treatment and re-mPCNL 3 months later. ConclusionPercutaneous-renal pathway loss happened in early learning curve and was caused by unsuitable manipulation during operation in most cases. It is feasible to use identification of tissue layer or methylene blue tracer technique in order to get back pathway. Re-puncture or two-stage operation can be used when the identification failed.
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分类号
R692.4
[医药卫生—泌尿科学]
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