Patent ID: 7187964
Filing Date: 2007-03-06
Classification: A61B

Abstract:
1. A device for measuring electrical and geometric characteristics of body tissue from a blood-filled cavity within the tissue, comprising: a multielectrode lumen catheter, having multiple electrodes arranged in a fixed pattern on a continuous surface, wherein the electrodes are configured to take multiple simultaneous non-contact measurements of electrical potentials resulting from electrical activity from multiple locations in the tissue; and an anatomical imaging catheter having at least one imaging element for visualizing anatomical characteristics located inside the multielectrode lumen catheter, wherein the anatomical imaging catheter is configured to take multiple non-contact measurements of anatomical characteristics of the tissue, and for determining location and orientation of the multielectrode catheter with respect to the tissue; wherein the multielectrode catheter and the imaging catheter are configured to provide the measurements of electrical potentials and the measurements of anatomical characteristics to a data processing system for reconstruction of tissue surface electrograms.