Multi-sensor based cardiac stimulation

Abstract

Devices and methods are described for improving device therapy, such as cardiac resynchronization therapy, by determining values ​​for device parameters. A mobile medical device (AMD) may include sensor circuitry to sense physiological signals and generate two or more signal metrics and use the two or more signal metrics to detect events of deteriorating cardiac conditions. In response to detection of deteriorating cardiac condition, the AMD may determine a value for at least one stimulation parameter for the stimulator based on the temporal response of the two or more signal metrics. Temporal responses include both short-term and long-term responses to stimuli. AMD can program the stimulator with determined parameter values ​​and generate stimulation to stimulate the target tissue according to the determined parameter values.

Description

[0001] priority claim [0002] This application claims the benefit of priority under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application Serial No. 62 / 246,293, filed October 26, 2015, which is hereby incorporated by reference in its entirety. technical field [0003] This document relates generally to medical devices and, more particularly, to systems, devices, and methods for improving device therapy using multiple sensors. Background technique [0004] Congestive heart failure (CHF) is a major health problem and affects many people in the United States alone. CHF is the loss of the heart's pumping energy, resulting in an inability to deliver enough blood to meet the needs of surrounding tissues. CHF patients typically have an enlarged heart due to weakened heart muscle, resulting in reduced contractility and poor blood output from the heart. [0005] CHF is usually a chronic condition, but can occur suddenly. It can affect the left heart, right heart, or both side...

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