Patent ID: 8868183

Claim:
An apparatus comprising: an implantable cardiac function management device including a programmable controller, the programmable controller configured to include at least first and second user-specifiable therapy control parameter sets, wherein each of the first and second therapy control parameter sets include: a plurality of user-specifiable control parameters including a first control parameter that interacts with a second control parameter; and at least one therapy control parameter that is user-configurable to automatically switch from a first parameter value to a second parameter value at a time that occurs between separate user programming sessions of the device; wherein the first therapy control parameter set operates during at least a first time duration and the second therapy control parameter set operates during at least a second time duration, and wherein the device is configured to monitor a physiological measure in response to the first therapy control parameter set and compare the physiological measure with a target value for the physiological measure, the device being configured to modify the second therapy control parameter set, prior to the device implementing the second therapy control parameter set, based upon: the comparison between the physiological measure and the target value for the physiological measure; and a comparison of at least one parameter of the second therapy control parameter set to a user-specified range for that parameter; wherein the controller is configured to concurrently vary multiple therapy control parameters and determine an impact of a particular individual therapy control parameter on the resulting monitored physiological measure.