Patent ID: 9693699
Date: 2017-07-04
CPC Classifications: A61B

Claim:
1. A system for mapping cardiac fibrillation in a patient, comprising: a catheter subsystem having a catheter comprising an array of at least one stacked electrode pair, each electrode pair including a first electrode and a second electrode, each electrode pair configured to be orthogonal to a surface of a cardiac tissue substrate, each first electrode configured to be in contact with the surface to record a first signal, and each second electrode configured to be separated from the first electrode by a distance which enables the second electrode to record a second signal, the catheter subsystem being configured to obtain one or more measurements from the at least one first signal and at least one second signal of the at least one stacked electrode pair in response to electrical activity in the cardiac tissue substrate for a duration indicative of tissue activation frequency and in turn indicative of a number of electrical circuit cores and distribution of the electrical circuit cores across the cardiac tissue substrate in the patient's heart; a processing unit configured to register the location of each first electrode and each second electrode of the at least one stacked electrode pair onto a representation of the surface, to process the first and second sets of two or more sequential measurements to obtain an approximate number of electrical circuit cores and an approximate distribution of the electrical circuit cores, and to provide a map of the approximate number of electrical circuit cores and the approximate distribution of the electrical circuit cores, said map being registered onto a representation of the patient's heart; and a storage unit to store data and executable instructions to be used by the processing unit.