Patent ID: 8626294
Filing Date: 2014-01-07
Classification: A61N

Abstract:
1. In an implanted cardiac pacing system, a method for setting pacing parameters comprising: conducting periodic pacing threshold searches, wherein at least one of the periodic pacing threshold searches comprises: applying a series of test pacing pulses at incremented and/or decremented levels of pulse energy; adjusting an initial evoked response amplitude threshold for evoked response signal detection to a lower value when, upon applying a test pacing pulse, no evoked response signal is detected at the initial threshold; and restarting the pacing threshold search with the lower value for the evoked response amplitude threshold; setting an operational pacing pulse energy greater than or equal to a predetermined maximum desirable pulse energy, when no evoked response signal is detected with the lower evoked response amplitude threshold when another test pulse is applied at or above the predetermined maximum desirable pulse energy during the pacing threshold search; and reducing a pacing rate following the pacing threshold search of the periodic pacing threshold searches, when the operational pacing pulse energy is set greater than the predetermined maximum desirable pulse energy.