Variable stiffness electrophysiology catheter
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United States of America Patent
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Nov 10, 1998
Issued Date -
N/A
app pub date -
Oct 28, 1996
filing date -
Jul 30, 1993
priority date (Note) -
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Abstract
A catheter supporting a tip electrode for percutaneous insertion into a living body having a steering mechanism that includes an elongated body bendable in response to external forces to steer the tip electrode. An axially movable stiffening member, preferably in the form of a sleeve or rod provides a variable resistance to bending of the body in response to an applied bending force. A control stylet or sleeve extends through the catheter and is attached to the stiffening member for moving the stiffening member in a distal/proximal direction relative to the body.
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