Enhanced contact steerable bowing electrode catheter assembly
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United States of America Patent
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-
Mar 9, 1999
Grant Date -
N/A
app pub date -
Apr 2, 1997
filing date -
Apr 2, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A catheter assembly (2) includes a proximal end assembly (4), with four slidable movable manipulators (12, 14, 16, 18) and a bowing catheter (6) extending from the proximal end assembly. The bowing catheter includes an elongate, flexible catheter body (24), having a tip portion (30) carrying electrodes (32), first and second elongate push/pull manipulator wires (26, 28), and a sheath (22) housing the catheter body and manipulator wires. The sheath, catheter body and manipulator wires are each coupled to a manipulator. The manipulator wires are connected to positions (40, 42) on either side of a stiff tip segment (43). The manipulator wires have sufficient columnar strength/stiffness to maintain the tip segment at a range of relatively stable orientations to cause the bowed tip to be deflected in in-plane and out-of-plane deflections.
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