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System and devive for locating the tip of a central venous catheter
专利权人:
发明人:
申请号:
EP14151268.1
公开号:
EP2722000A1
申请日:
2009.02.04
申请国别(地区):
EP
年份:
2014
代理人:
摘要:
Methods of locating a tip of a central venous catheter (CVC) relative to the superior vena cava, sino-atrial node, right atrium, and/or right ventricle using electrocardiogram data. The CVC includes at least one electrode. In particular embodiments, the CVC includes two or three pairs of electrodes. Further, depending upon the embodiment implemented, one or more electrodes may be attached to the patients skin. The voltage across the electrodes is used to generate a P wave. A reference deflection value is determined for the P wave detected when the tip is within the proximal superior vena cava. Then, the tip is advanced and a new deflection value determined. A ratio of the new and reference deflection values is used to determine a tip location. The ratio may be used to instruct a user to advance or withdraw the tip.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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