Cardiac rhythm management system with respiration...

Details Cardiac rhythm management system with respiration... Cardiac rhythm management system with respiration...

2005-04-05

2005-04-05

Layno, Carl (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C607S020000, C607S025000

Reexamination Certificate

active

06876881

ABSTRACT:
A cardiac rhythm management device includes a dual chamber pacemaker, especially designed for treating congestive heart failure. The device incorporates a program microcontroller which is operative to adjust the pacing site, AV delay and interventricular delay of the pacemaker so as to achieve optimum hemodynamic performance. Atrial cycle lengths measured during transient (immediate) time intervals following a change in the site, AV delay and interventricular delay are signal processed and a determination can then be made as to which particular configuration yields the optimum performance. Paced transient beats following periods of baseline beats are synchronized to the patient's respiratory cycle to minimize effects of respiratory noise on atrial cycle length measurements.

REFERENCES:
patent: 5540727 (1996-07-01), Tockman et al.
patent: 5800471 (1998-09-01), Baumann

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