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专利名称：Steering mechanism for bi-directional
catheter
发明人：Thomas V. Selkee申请号：US10871682申请日：20040614公开号：US07591799B2公开日：20090922
专利附图：
摘要：A bi-directional catheter with nearly double the throw in its catheter tipdeflection defines a puller wire travel path having a U-turn a pulley which minimizes theoffset angle between the puller wire and the longitudinal axis of the control handle while
maximizing the travel distance of that puller wire for any given distance traveled by thepulley drawing the puller wire. In particular, the control handle of the catheter whichincludes a steering assembly having a lever arm carrying a pair of pulleys for drawingcorresponding puller wires to deflect the tip section of the catheter. The pulleys arerotatably mounted on opposing portions of the lever arm such that one pulley is moveddistally as the other pulley is moved proximally when the lever arm is rotated. Becauseeach puller wire is trained on a respective pulley, rotation of the lever arm causes thepulley that is moved proximally to draw its puller wire to deflect the tip section in thedirection of the off-axis lumen in which that puller wire extends.
申请人：Thomas V. Selkee
地址：Claremont CA US
国籍：US
代理机构：Christie, Parker & Hale, LLP
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