Biosense Webster (israel) Ltd.

Dan Sztejnberg

Morris Ziv-Ari

Yoav Benaroya

Daniel Osadchy

Ido Ilan

Shaul Haim Raz

Tamir Avraham Yellin

Toam Shemesh

Itai Doron

Michael Maydel

Tamir Demri

Lilia Suzdalnitsky

Menachem Schechter

Fares Safe

Hanna Cohen-Sacomsky

Lidia Tonkonogi Tarasenko

A system includes multiple electrically-conductive channels and a processor. The processor is configured to receive, over the electrically-conductive channels, (i) respective first electric currents from a probe, which is within a body of a patient, via a plurality of first electrodes, which are attached to skin of the patient at a region of the body, and (ii) a second electric current from the probe via a second electrode, which is attached to the skin and is connected to one of the channels. The processor is further configured to ascertain respective first electric-current values of the first electric currents and a second electric-current value of the second electric current, and to calculate a position of the probe between the region and the second electrode, based on the first electric-current values and the second electric-current value. Other embodiments are also described.

Extending the tracking volume in a probe tracking system

A method, including receiving sets of signals during multiple cardiac cycles, each set indicating, for a probe inserted into a cardiac chamber, a 3D location of a distal end of the probe, electrical potentials measured at the location, and respective times during a given cycle when the potentials were measured. The received measurements and the respective times are compared to a first template for a sinus rhythm cycle and a second template for a non-sinus rhythm cycle so as to identify a sequence of cycles including consecutive first, second, and third cycles wherein the first and second cycles match the first template and the third cycle matches the second template. A physical map is generated based on the locations. Based on the received locations and corresponding potentials, an electroanatomic map including the local activation times for the non-sinus rhythm cycle overlaid on the physical map is rendered to a display.

Mapping local activation times for sinus and non-sinus cardiac cycles

A system comprises a display and a processor. The processor is configured to display on the display in a graphical user interface (GUI), while a plurality of electrogram signals are acquired from a heart, a plurality of widgets corresponding to different respective electroanatomical maps generated from the electrogram signals, each of the electroanatomical maps being associated with a respective set of suitability criteria such that any one of the electrogram signals is used to generate the map only if the signal satisfies the set of suitability criteria. The processor is further configured to display in the GUI, in response to a user selecting any one of the widgets, a status of a most recently acquired one of the electrogram signals with respect to at least one criterion in the set of suitability criteria associated with the electroanatomical map to which the selected widget corresponds. Other embodiments are also described.

Graphical user interface for parallel electroanatomical mappings

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Hertzliya, Israel

Dan Sztejnberg