| CPC A61B 18/1492 (2013.01) [A61B 2018/00773 (2013.01); A61B 2018/1467 (2013.01); A61B 2562/0223 (2013.01); A61B 2562/0257 (2013.01)] | 6 Claims |
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1. A medical system, comprising:
a catheter configured to be inserted into a heart of a living subject, and including a magnetic sensor and a distal end comprising a plurality of electrodes, where each of the electrodes has a predetermined spatial relationship relative to the magnetic sensor; and
at least one magnetic generator coil configured to:
transmit alternating magnetic fields into a region in which heart is located; and
generate electrical signals in the magnetic sensor indicative of a position and orientation of the magnetic sensor; and
a processor configured to:
compute position coordinates of the electrodes responsively to the electrical signals; and
find a measure of proximity of each of the electrodes to tissue of the heart responsively to the position coordinates of the electrodes and position coordinates of a wall of an anatomical map of the heart, wherein the anatomical map comprises a modeled shell of geometry of the heart; and
a display, wherein the processor is configured to:
render to the display a representation of the catheter and the plurality of electrodes upon the catheter; and
provide indications of the measure of proximity of each of the electrodes to the nearest tissue of the heart, wherein the indications are provided upon the representation of the electrodes upon the catheter and wherein the indications comprise one or more of a brightness level, a shading, or a color where the brightness level, shading, or color indicates a level of proximity to the tissue selected from a plurality of levels, the levels including at least i) the electrode is not in contact with the tissue; and ii) the electrode is in contact with the tissue.
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