Surgery – Truss – Pad
Patent
1996-10-15
1998-02-24
Kamm, William E.
Surgery
Truss
Pad
607 5, 607 9, A61B 50452, A61N 1362
Patent
active
057202958
ABSTRACT:
In a dual chamber implantable pacemaker, the peak amplitude of the atrial intrinsic signals are monitored and used to generate a short term and a long term indicia indicative of the intrinsic signals' variability and deviation from normal sinus rhythm peak amplitudes. The two indicia are combined to generate a single indicia which is then used to categorize the state of the atrium as one of several conditions such as flutter/flubber, coarse atrial fibrillation or fine atrial fibrillation. The categorization is used by a microcontroller for generating the proper pacing pulses and may also be used as a criteria for mode switching between a first mode wherein synchrony between the atrium and ventricle is maintained and a second mode pacing is performed at a fixed rate or one determined by the metabolic indicator.
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Greenhut Saul E.
Nappholz Tibor A.
Evanisko George R.
Kamm William E.
Pacesetter Inc.
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