Heart stimulating device with stimulation energy responsive to detected noise
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United States of America Patent
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Jan 19, 1999
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N/A
app pub date -
Feb 9, 1998
filing date -
Feb 10, 1997
priority date (Note) -
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Abstract
A heart stimulating device has pulse generators which can operate in either a first mode wherein the stimulation pulse energy is adjusted to a capture threshold of a patient's heart, or a second mode wherein the stimulation pulse energy is fixed. An evoked response detector senses IEGM signals to detect capture or non-capture subsequent to an emitted stimulation pulse. A noise detector detects as noise IEGM signals having predetermined signal characteristics. The noise detector, after having detected noise, sets the pulse generators to operate in the second mode. A lead arrangement connects the pulse generators, the evoked response detector, and the noise detector to a patient's heart.
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