Pacemaker with automatic mode switching using detection of hidde

Details Pacemaker with automatic mode switching using detection of hidde Pacemaker with automatic mode switching using detection of hidde

1997-04-19

1998-08-11

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 1362

Patent

active

057921920

ABSTRACT:
In a rate responsive pacemaker, an AMS (automatic mode switching) feature is selectively turned on or off depending on whether atrial tachycardia is present. An atrial tachycardia condition is recognized by analyzing a pattern of short and long atrial event intervals. The pattern may be changed by adjusting a pacing parameter such as a maximum ventricular pacing rate. The pattern changes because by changing the pacing parameters, some of the atrial events are uncovered which have been previously hidden or masked by blanking periods, especially the cross channel atrial blanking period.

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patent: 4766901 (1988-08-01), Callaghan
patent: 4901725 (1990-02-01), Nappholz et al.
patent: 4974589 (1990-12-01), Sholder
patent: 5342405 (1994-08-01), Duncan
patent: 5441523 (1995-08-01), Nappholz
patent: 5658320 (1997-08-01), Betzold et al.

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