System and method for electrode localization using ultrasound
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United States of America Patent
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Dec 3, 2002
Grant Date -
N/A
app pub date -
Aug 1, 1997
filing date -
Aug 1, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention is a device localization system that uses one or more ultrasound reference catheters to establish a fixed three-dimensional coordinate system within a patient's heart using principles of triangulation. The coordinate system is represented graphically in three-dimensions on a video monitor and aids the clinician in guiding other medical devices, which are provided with ultrasound transducers, through the body to locations at which they are needed to perform clinical procedures. In one embodiment of a system according to the present invention, the system is used in the heart to help the physician guide mapping catheters for measuring electrical activity, and ablation catheters for ablating selected regions of cardiac tissue, to desired locations within the heart.
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