BIOSENSE WEBSTER (ISRAEL) LTD.;Christopher Thomas Beeckler;Vadim Gliner;Assaf Govari
发明人:
Assaf Govari,Vadim Gliner,Christopher Thomas Beeckler
申请号：
IL26931219
公开号：
IL269312D0
申请日:
2019.09.12
申请国别(地区):
IL
年份:
2020
代理人:
摘要：
A medical apparatus includes a shaft for insertion into an organ of a patient, an expandable frame, a plurality of diagnostic electrodes, a respective plurality of reference electrodes, and a processor. The expandable frame is coupled to a distal end of the shaft, extending along a longitudinal axis and including a plurality of expandable spines disposed about the longitudinal axis. The plurality of diagnostic electrodes, disposed on external surfaces of the expandable spines, are configured to sense diagnostic signals when in contact with tissue. The respective plurality of reference electrodes, disposed on internal surfaces of the expandable spines directly opposite the diagnostic electrodes, is electrically insulated from the tissue and is configured to sense interfering signals. The processor is configured to receive the diagnostic signals sensed by the diagnostic electrodes, receive the interfering signals sensed by the respective reference electrodes, and calculate corrected diagnostic signals by subtracting the interfering signals from the diagnostic signals.
