US Patent No: 5,584,867

Number of patents in Portfolio can not be more than 2000

Method and apparatus for controlling a double atrial triple chamber cardiac pacemaker having a fallback mode

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Abstract

Control of a double atrial triple chamber cardiac pacemaker having a programmable fallback mode. The triple chamber pacemaker has a right atrial electrode and a left atrial electrode connected to the same atrial detection/stimulation circuit, as well as a ventricular electrode connected to a ventricular detection/stimulation circuit of the pacemaker. The fallback mode involves desynchronization of the ventricular stimulation from the detected atrial rhythm when the atrial rhythm is too rapid. The pacemaker also includes a fallup mode of pacing in which there is a progressive re-synchronization of ventricular stimulation to the atrial rhythm when the atrial rhythm falls to a less rapid rhythm. The triple chamber pacemaker senses a succession of signals at the atrial circuit, and in response to each detection of a signal, defines a masking period of inter-atrial propagation for not sensing signals at the atrial circuit, measures an interval of time separating two successive sensed signals, compares the measured time interval to a predetermined control value, and triggers the fallup mode of progressive re-synchronization when the measured time interval becomes greater than the control value.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ELA MEDICAL S.A.MONTROUGE204

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Limousin, Marcel Paris, FR 44 1071
Remy, Martine Jouy en Josas, FR 1 183

Cited Art

Patent Info (Count) # Cites Year
 
CARDIAC PACEMAKERS, INC. (1)
5,107,850 Method and apparatus for classifying and treating cardiac arrhythmias based on atrial and ventricular activity 193 1990
 
ELA MEDICAL A CORP. OF FRANCE (1)
5,226,415 Method and apparatus for controlling a dual-chamber pacemaker in response to physiological and pathological atrial events 31 1991
 
MEDTRONIC, INC. (1)
4,932,406 Dual chamber rate responsive pacemaker 64 1988

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
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