Magnetic field generating system and method
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United States of America Patent
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Issued Date -
Nov 24, 2005
app pub date -
Dec 11, 2003
filing date -
Dec 21, 2000
priority date (Note) -
Abandoned
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Abstract
A magnetic field generating system for use in steering a catheter has X (2,3), Y (8,9) and Z (10, 11) magnetic field generators arranged to generate corresponding magnetic fields in mutually orthogonal, X, Y and Z directions. Each of the X and Y magnetic field generators comprises a pair of magnets each magnet having a polarity defining a magnetic axis. The magnets within each pair are arranged such that their magnetic axes are oriented in the Z direction in a substantially antiparallel manner with respect to one another, and are laterally spaced apart with respect to their magnetic axes. The corresponding magnetic fields cooperate to generate a resultant magnetic field in a working region (50) separated in the Z direction from the magnetic field generators.
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