CPC A61B 5/6853 (2013.01) [A61B 5/24 (2021.01); A61B 5/6859 (2013.01); A61B 2562/046 (2013.01); A61B 2562/166 (2013.01)] | 5 Claims |
1. An apparatus for electrophysiological sensing, the apparatus comprising:
a shaft, configured for insertion into a body of a subject; and
an expandable element coupled to a distal end of the shaft and comprising multiple electrodes, the expandable element comprising an assembly of parallel splines, and
wherein the electrodes are grouped into rows coupled to the splines, respectively, the rows being staggered with respect to each other,
wherein successive electrodes on the same spline are spaced apart from one another by distance D0, while adjacent splines are spaced apart from one another by a distance
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