Patent ID: 8099166
Filing Date: 2012-01-17
Classification: A61B,A61N

Abstract:
1. An implantable heart stimulating device comprising: an electrode lead configured for in vivo implantation in a patient, said electrode lead carrying at least one sensing electrode configured to interact with the heart of the patient, as a part of a complete current path, when the electrode lead is implanted in the patient; an ECG sensing unit that receives cardiac potential signals from said electrode; said ECG sensing unit being provided with a non-temporal make-break threshold indicative of a magnitude of said cardiac potential signal associated with an absence of successive making and breaking of said current path, said ECG sensing unit being configured to emit an output signal at a first output of said ECG sensing unit whenever said cardiac potential signal exceeds said threshold; a timer that generates a make-break detection period; a counter connected to said first output of said ECG sensing unit that generates a count representing a number of times that said cardiac potential signal exceeds said make-break threshold; and a storage unit connected to said counter and to a second output of said ECG sensing unit, said counter being configured to cause transfer of the cardiac potential signal obtained during said make-break detection period from said second output of said ECG sensing unit to said storage unit if said count in said make-break detection period exceeds a predetermined value.