US 11,691,018 B2
Using implantable medical devices to augment noninvasive cardiac mapping
William Rowland, Murrayville, GA (US); Timothy G. Laske, Shoreview, MN (US); Qing Lou, Solon, OH (US); and Qingguo Zeng, Solon, OH (US)
Assigned to CARDIOINSIGHT TECHNOLOGIES INC., Independence, OH (US)
Filed by CARDIOINSIGHT TECHNOLOGIES, INC., Independence, OH (US)
Filed on Feb. 19, 2021, as Appl. No. 17/179,465.
Prior Publication US 2022/0266009 A1, Aug. 25, 2022
Int. Cl. A61B 5/367 (2021.01); A61N 1/365 (2006.01); A61M 60/178 (2021.01); A61B 5/287 (2021.01); A61B 5/06 (2006.01); A61B 5/00 (2006.01); A61N 1/05 (2006.01); A61N 1/372 (2006.01)
CPC A61N 1/365 (2013.01) [A61B 5/063 (2013.01); A61B 5/287 (2021.01); A61B 5/367 (2021.01); A61B 5/4836 (2013.01); A61B 5/686 (2013.01); A61M 60/178 (2021.01); A61N 1/0563 (2013.01); A61N 1/37235 (2013.01); A61B 2560/0223 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method comprising:
establishing a communications link between an electrophysiology (EP) monitoring system and an implantable medical device (IMD), the IMD including an IMD processor, an IMD communications module, and an IMD electrode, in which the communications module is configured to communicate data through the communications link, the IMD electrode is implanted at a fixed location in a patient's body and coupled to the IMD processor through an electrode interface, and the EP monitoring system includes an EP processor, an EP communications module, and EP electrodes;
controlling, by the IMD processor, the electrode interface to generate and/or measure signals at the IMD electrode;
providing IMD electrical data to the IMD communications module, the IMD electrical data representing the signals generated and/or measured by the IMD electrode;
receiving the IMD electrical data at the EP communications module via the communications link;
synchronizing temporally, by the EP processor, the IMD electrical data with EP electrical measurement data to provide synchronized electrical data based on a timing feature reflected in a synchronization signal sensed by the IMD electrode and/or the EP electrodes, the EP electrical measurement data representing signals measured by the EP electrodes, and the synchronized electrical data including the IMD electrical data and the EP electrical measurement data that has been synchronized for a respective time interval; and
computing, by the EP processor, an EP map of electrical signals for locations on a surface of interest within the patient's body based on the synchronized electrical data and geometry data, the geometry data representing locations of the EP electrodes, the location of the IMD electrode within the patient's body and geometry of the surface of interest.