Ryan, Maki, Mann & Hohenfeldt
Systems and methods for examining heart tissue employing multiple electrode structures and roving electrodes
 Systems and methods use an array of multiple electrodes supported for operative association with a region of heart tissue, in tandem with a roving second electrode supported for movement relative to the multiple electrode means for operative association with selected, different regions of endocardial tissue within the heart. An analog or digital processing element conditions one of the multiple electrodes and the roving electrode to emit a pacing signal while the other one of the multiple electrodes and the roving electrode records paced electrograms occurring as a result of the pacing signal. A processing element and method input a template of a cardiac event of known diagnosis sensed using the array of multiple electrodes. The processing element and method inputs a sample of a cardiac event acquired by pacing from at least one roving electrode and sensed with the array of multiple electrodes. The processing element and method electronically compare the input sample to the input template and generates an output based upon the comparison. The output can aid the physician in locating potentially appropriate sites for ablation. 
EP Technologies, Inc.
A A A A A A A
A61B A61B A61B A61B A61B A61B A61N
additional additional inventional inventional inventional additional inventional
James G. Dorin David K.
Whayne Panescu Swanson