Cardiac resynchronization therapy parameter optimization
First Claim
1. A method for operating a cardiac device to algorithmically determine a value of a parameter for use in delivery of cardiac resynchronization therapy (CRT), the method comprising:
- implementing a first cardiac resynchronization therapy (CRT) optimization process by analyzing a first set of physiological signals and returning a first recommended value for a CRT parameter based on the first set of physiological signals;
adjusting a CRT parameter value search range of at least one additional CRT optimization process based on the first recommended value, the first CRT optimization process based on a different process of optimization with respect to the at least one additional CRT optimization process;
implementing the at least one additional CRT optimization process by analyzing a second set of physiological signals and using the adjusted value search range to return an additional recommended value for the CRT parameter for each additional CRT optimization process; and
determining the value of the CRT parameter for use in delivery of CRT by the cardiac device based on the additional recommended values returned by the one or more additional CRT optimization processes.
1 Assignment
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Accused Products
Abstract
Systems and methods involve determination of CRT parameters using a number of CRT optimization processes. Each CRT optimization process attempts to return recommended parameters. The CRT parameters are determined based on the recommended parameters returned by one or more of the CRT optimization processes. The CRT optimization processes may be sequentially implemented and the CRT parameters may be determined based on the recommended parameters returned by a first CRT optimization process to return recommended parameters. The CRT parameters may be determined based on a combination of the recommended parameters returned. The CRT optimization processes implemented may be selected from available CRT optimization processes based on patient conditions.
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Citations
26 Claims
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1. A method for operating a cardiac device to algorithmically determine a value of a parameter for use in delivery of cardiac resynchronization therapy (CRT), the method comprising:
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implementing a first cardiac resynchronization therapy (CRT) optimization process by analyzing a first set of physiological signals and returning a first recommended value for a CRT parameter based on the first set of physiological signals; adjusting a CRT parameter value search range of at least one additional CRT optimization process based on the first recommended value, the first CRT optimization process based on a different process of optimization with respect to the at least one additional CRT optimization process; implementing the at least one additional CRT optimization process by analyzing a second set of physiological signals and using the adjusted value search range to return an additional recommended value for the CRT parameter for each additional CRT optimization process; and determining the value of the CRT parameter for use in delivery of CRT by the cardiac device based on the additional recommended values returned by the one or more additional CRT optimization processes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical system, comprising:
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sensor circuitry configured to sense physiological signals; a first cardiac resynchronization therapy (CRT) optimization module configured to implement a first CRT value optimization process, the first CRT optimization module configured to analyze one or more of the sensed physiological signals and to return a first recommended value for a CRT delivery parameter as part of implementation of the first CRT value optimization process; one or more additional CRT optimization modules configured to implement one or more additional CRT value optimization processes, each additional CRT optimization module configured to analyze one or more of the sensed physiological signals and to use a CRT parameter value search range adjusted using the first recommended value to return an additional recommended value for the CRT delivery parameter as part of implementation of a respective one of the one or more additional CRT value optimization processes, the first CRT value optimization process based on a different process of optimization with respect to the one or more additional CRT optimization processes; and a processor configured to determine a value of the CRT delivery parameter for use in implementing CRT based on the additional recommended values returned by the one or more additional CRT optimization modules. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for determining a value of at least one cardiac resynchronization therapy (CRT) parameter, the system comprising:
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means for implementing a first cardiac resynchronization therapy (CRT) optimization process by analyzing one or more physiological signals and returning a first recommended value for at least one CRT parameter; means for implementing one or more additional CRT optimization processes by analyzing one or more physiological signals to return an additional recommended value for the at least one CRT parameter using a value search range that is adjusted based on the first recommended value for each implementation of the one or more additional CRT optimization processes, the first CRT optimization process based on a different process of optimization with respect to each of the one or more additional CRT optimization processes; and means for determining the value of the at least one CRT parameter for use in delivery of CRT based on the additional recommended values returned by the one or more additional CRT optimization processes. - View Dependent Claims (24, 25, 26)
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Specification