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撮像カテーテルシステムにおいてノイズを低減するためのシステム
专利权人:
ボストン サイエンティフィック リミテッド
发明人:
ドナルド・マスターズ
申请号:
JP2008540380
公开号:
JP4979708B2
申请日:
2006.11.13
申请国别(地区):
JP
年份:
2012
代理人:
摘要:
The present invention provides systems and methods for reducing noise in an imaging catheter system. In an embodiment, a catheter comprises an imaging transducer and a transmission line within the catheter to transmit signals to and from the transducer. To reduce noise caused by exposure of the transmission line to external interference, a choke balun is coupled to the transmission line. In another embodiment, the signal from a rotating imaging transducer of the catheter is coupled to a motor drive unit by a slip ring assembly. The transducer signal is passed through first and second transformers placed on opposite sides of the slip ring assembly to reduce noise from the slip ring assembly. In another embodiment, the catheter includes a position sensor to track the position of the catheter. The position sensor is coupled to a second choke balun to further reduce noise.
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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