Pacemaker system and method with improved capture detection and

Details Pacemaker system and method with improved capture detection and Pacemaker system and method with improved capture detection and

1997-03-12

1998-04-21

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

607 11, A61N 1362

Patent

active

057413126

ABSTRACT:
There is provided a pacemaker system with capture verification and threshold testing, in which the pacemaker waits after each change in delivered pace pulses for a stabilization interval, in order to minimize polarization and enhance capture verification. The threshold test utilizes a pace pulse pair, comprising a prior search pulse which is varied during the test, and the regular pacing pulse which is above threshold. When delivery of the pulse pairs is initiated, the search pulse is adjusted to optimize polarization, and the pacemaker waits for predetermined stabilization period of time in order to allow for minimum polarization and to optimize capture detection. The search pulse is increased incrementally in output value toward threshold, and following each such increase the pacemaker waits for a stabilization interval. The pacemaker detects when capture is achieved by the search pulse, thereby providing an indication of threshold.

REFERENCES:
patent: 3835865 (1974-09-01), Bowers
patent: 4305396 (1981-12-01), Wittkampf et al.
patent: 4343312 (1982-08-01), Cals et al.
patent: 4674508 (1987-06-01), DeCote
patent: 5320643 (1994-06-01), Roline et al.
patent: 5476487 (1995-12-01), Sholder

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