Patent ID: 8386036

Claim:
An external medical device to communicate with an implantable device, the external device comprising: a user interface configured to receive a prompt to generate one or more therapy settings for the implantable device; an LV Offset determiner communicatively coupled to the user interface and configured to: communicate a request to the implantable device for information in response to the prompt; receive a representation of a cardiac signal sensed in the RV and a representation of a cardiac signal sensed in the LV from the implantable device; measure a duration interval between a cardiac event in the RV and a cardiac event in the LV using the received representations; calculate, as a first generated therapy setting, an LV offset interval using the measured duration interval and a previous value of a first indicated pacing interval; and provide the calculated LV offset interval to at least one of a user or a process executing on the external medical device or a process of a different device.