Cardiac pacemaker with automatic adaptation of pacing rate...

Details Cardiac pacemaker with automatic adaptation of pacing rate... Cardiac pacemaker with automatic adaptation of pacing rate...

2006-01-10

2006-01-10

Layno, Carl (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C607S004000, C607S018000

Reexamination Certificate

active

06985772

ABSTRACT:
A pacemaker has a pulse generator for delivering stimulation pulses to a patient's heart, a sensor for measuring a parameter related to cardiac output, and a control unit for controlling the delivery of stimulation pulses from the pulse generator. The control unit includes an altering unit for altering at least one of the VV delay between consecutive stimulation pulses to the right and left ventricles and the AA delay between consecutive stimulation pulses to the right and left atria. The sensor measures the parameter in various time windows within a time of operation of predetermined VV- or AA-delay values. A determining unit includes a calculation unit for calculating an average value of the measured parameter during each of said time windows and the determining unit uses these average values to determine which one of the VV- and/or AA-delay values results in a higher cardiac output.

REFERENCES:
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patent: 6473645 (2002-10-01), Levine
patent: 6748261 (2004-06-01), Kroll et al.
patent: 2001/0005790 (2001-06-01), Ripart
patent: 2003/0074029 (2003-04-01), Deno et al.
patent: WO 98/14772 (1998-04-01), None
patent: WO 01/80947 (2001-11-01), None

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