Patent ID: 9533159
Date: 2017-01-03
CPC Classifications: A61B,A61N

Claim:
1. A system for cardiac rhythm management comprising: a pulse generator for generating pacing pulses for stimulating a heart of a patient; a memory; a sensor configured to sense a response to a stimulation of a phrenic nerve of the patient and to produce a sensor signal; a processing circuit in communication with the memory and the sensor, the processing circuit configured to: derive a time-frequency representation of the sensor signal based on the received sensor signal; determine if the phrenic nerve of the patient has been stimulated by comparing one or more of a frequency characteristic of the time-frequency representation of the sensor signal to a stored frequency band, and a time characteristic of the time-frequency representation of the sensor signal to a time window following a pacing pulse; store a phrenic nerve stimulation event identifier in the memory if the processing circuit determines that the phrenic nerve of the patient has been stimulated.