Intra-cardiac tracking system
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United States of America Patent
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Jun 11, 2013
Grant Date -
Nov 1, 2012
app pub date -
May 8, 2012
filing date -
Apr 2, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
In general, in one aspect, a method is disclosed for determining information about a position of an object. The method includes: (i) causing current to flow between each of three or more sets of current-injecting electrodes on a first catheter inserted into an organ in a patient's body, the organ having a periphery (ii) in response to current flow caused by each set of current injecting electrodes, measuring an electrical signal at each of one or more measuring electrodes located on one or more additional catheters inserted into the organ in the patient's body and (iii) determining the position of each of one or more of the measuring electrodes on the additional catheters relative to the first catheter based on the measured signals from the one or more measuring electrodes.
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