Heart failure management
AssigneeCardiac Pacemakers, Inc.
InventorsImad Libbus, Krzysztof Z. Siejko, Marina V. Brockway, Robert J. Sweeney
Life of this patent
Estimating the term…
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.
Claims20
A method, comprising:
- obtaining a first measurement of a heart failure status and a second measurement of the heart failure status;
- creating a heart failure index using the first measurement and the second measurement, wherein creating a heart failure index includes creating a short-term heart failure index and a long-term heart failure index;
- and
- adjusting a heart failure therapy using the heart failure index as an indicator of the heart failure status, wherein adjusting the heart failure therapy includes adjusting the heart failure therapy using the short-term heart failure index and adjusting the heart failure therapy using the long-term heart failure index.
A method, comprising:
- delivering a stimulation signal for a heart failure therapy;
- using a dual feedback response to account for both long-term heart failure status changes and short-term heart failure status changes;
- using data sources of heart failure parameters 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
- controlling the stimulation to deliver the heart failure therapy using the short-term heart failure status index and the long-term heart failure index.
A method, comprising:
- delivering a neural stimulation signal to stimulate an autonomic neural target for a heart failure therapy;
- delivering a myocardial stimulation signal to stimulate myocardia, including delivering paces to a heart to enforce a heart rate to meet metabolic demand;
- using a dual feedback response to account for both long-term heart failure status changes and short-term heart failure status changes;
- creating 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
- controlling the stimulator to deliver the heart failure therapy using the short-term heart failure status index and the long-term heart failure index, including controlling delivery of the neural stimulation signal in response to detecting the decompensation event to reduce a parasympathetic response.
Dependencies are inferred from the claim text.