Heart failure management system
AssigneeCardiac Pacemakers, Inc.
InventorsImad Libbus, Krzysztof Z. Siejko, Marina V. Brockway, Robert J. Sweeney
Life of this patent
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Abstract
Various system embodiments comprise a stimulator adapted to deliver a stimulation signal for a heart failure therapy, a number of sensors adapted to provide at least a first measurement of a heart failure status and a second measurement of the heart failure status, and a controller. The controller is connected to the stimulator and to the number of sensors. The controller is adapted to use the first and second measurements to create a heart failure status index, and control the stimulator to modulate the signal using the index. Other aspects and embodiments are provided herein.
Claims28
A system, comprising:
- a stimulator configured to deliver a stimulation signal for a heart failure therapy;
- a plurality of data sources of heart failure parameters;
- and
- a controller connected to the stimulator and to the plurality of data sources, wherein the controller is configured to:
- use a dual feedback response to account for both long-term heart failure status changes and short-term heart failure status changes;
- use the data sources to create heart failure status indices, the heart failure status indices including a short term heart failure status index for detecting inadequate cardiac output and a long term heart failure status index for detecting worsening or improving heart failure;
- and
- control the stimulator using the heart failure status index and control the stimulator using the long-term heart failure index.
A system, comprising:
- a neural stimulator configured to deliver a stimulation signal to stimulate an autonomic neural target for a heart failure therapy;
- a myocardial stimulator configured to deliver a stimulation signal to stimulate myocardia, the myocardial stimulator includes a pacemaker configured to pace a heart to enforce a heart rate to meet metabolic demand;
- a plurality of data sources of heart failure parameters, wherein the data sources include an externally sensed measure of weight;
- and
- a controller connected to the stimulator and to the plurality of data sources, wherein the controller is configured to:
- use a dual feedback response to account for both long-term heart failure status changes and short-term heart failure status changes;
- use the data sources to create heart failure status indices using a composite index of two or more heart failure parameters, the heart failure status indices including a short term heart failure status index for detecting a decompensation event and a long term heart failure status index for detecting worsening or improving heart failure;
- and
- control the stimulator using the heart failure status index and control the stimulator using the long-term heart failure index, including control the stimulator in response to detecting the decompensation event to reduce a parasympathetic response.
Dependencies are inferred from the claim text.