Method and probe for sensing intracardiac signals

Details Method and probe for sensing intracardiac signals Method and probe for sensing intracardiac signals

A - Human Necessities

61

N

326/13.1, 326/17

A61N 1/362 (2006.01) A61B 5/04 (2006.01)

Patent

CA 1192263

METHOD AND PROBE FOR SENSING INTRACARDIAC SIGNALS Abstract of the Disclosure Near field, localized, intracardial electromagnetic events can be reliably sensed within a human heart by sensing the event within the human heart at two or more closely spaced points, generally lying in a plane approximately perpendicular to the local depolarization vector in the proximate heart tissue. The local electromagnetic event in the proximate heart tissue is sensed and discriminated from all other events within the heart, including events occurring at other locations within the same heart chamber, events occurring in adjacent heart chambers, events occurring in adjacent muscle or body tissue, and events occurring exterior to the body. Thus, the P wave within the atrium can be reliably and distinguishably sensed from the QRST complex, the progression and sequence of heart events in the signal can be sensed at multiple locations wherein each event is reliably distinguished from the other. In addition, events immediately following a cardiac stimulating pulse can be reliably observed. -1-

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