Catheter steering mechanism

专利名称：Catheter steering mechanism

发明人：Ingemar Lundquist,Russell Blake Thompson申请号：US08/826282申请日：19970327公开号：US06033378A公开日：20000307

摘要：A steering mechanism including a steering shaft coupled to a controller whichincludes a handle and apparatus for manipulating the distal end of the steering shaft. Thesteering shaft includes a flexible coiled spring having a lead spring fixed in position withrespect to a distal end thereof in the distal end of the steering shaft. One or moresteering wires is affixed at the distal ends thereof to the lead spring. The steering wiresextend through the steering shaft to the controller, and the steering apparatus of thecontroller is used to place tension on one or both of the steering wires. The attachmentof the distal ends of the steering wires to the lead spring may be opposite one anotheror may be offset for providing greater maneuverability. Tension may be placed on thesteering wires by wedges mounted transversely to the controller housing, or by rotationof a shaft mounted transversely to the controller housing, the steering wires beingattached to the shaft such that rotation in one direction tenses one steering wire, androtation in the other direction tenses the other steering wire. Two independentlyrotatable shafts may be used to separately control the two steering wires.

申请人：EP TECHNOLOGIES, INC.

代理机构：Lyon & Lyon LLP

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