Granted Patent B2

US 9,242,110 · App. 14/817,073 · Granted Jan 26, 2016

Abstract

Claims (67)

1. A system for estimating a life of a power source of an implantable medical device (IMD), the system comprising:

a therapy logic, wherein the therapy logic provides:

an open-loop stimulation therapy; and

a closed-loop stimulation therapy, wherein the closed-loop stimulation therapy comprises at least one of:

a patient initiated stimulation therapy; and

an event detection stimulation therapy;

a detection logic, wherein the detection logic:

detects a change in one or more body parameters;

detects a patient input; and

triggers a change from the open-loop stimulation to the closed loop stimulation therapy based upon a detection of either a change in one or more body parameter or a patient input; and

a control device, wherein the control device:

calculates an open-loop life estimate of the power source, wherein the open-loop life estimate is based upon a set of open-loop stimulation parameters;

calculates a closed-loop charge consumption, wherein the closed-loop charge consumption is based upon a set of closed loop stimulation parameters; and

provides a first operable life estimate, wherein the first operable life estimate comprises a difference resulting from subtracting the closed-loop charge consumption from the open-loop life estimate.

2. The system of claim 1 , wherein the control device is configured to update the first operable life estimate based on changing a parameter value corresponding to the open-loop therapy.

3. The system of claim 1 further comprising a communication logic, wherein the communication logic is configured to retrieve control information from the IMD and to provide the estimate of operable life to an external device.

4. The system of claim 1 , wherein at least one of the open-loop stimulation parameters comprises at least one of:

a time period;

a duty cycle, wherein the duty cycle comprises a ratio of an on-time to a combination of the on-time and an off-time;

a current magnitude;

a pulse width;

a frequency; and

burst duration.

5. The system of claim 1 , wherein at least one of the closed-loop stimulation parameters comprises at least one of:

a time period;

a duty cycle, wherein the duty cycle comprises a ratio of an on-time to a combination of the on-time and an off-time;

a current magnitude;

a pulse width;

a frequency; and

burst duration.

6. The system of claim 1 , wherein the detection logic specifies a detection level associated with each of the one or more body parameters.

7. The system of claim 1 , wherein the estimate of operable life represents the entire life of the power source.

8. The system of claim 1 , wherein the control device is further configured to store a plurality of operable life estimates.

9. The system of claim 1 , wherein the control device is configured to update the first operable life estimate based on changing a parameter value corresponding to the closed-loop therapy.

10. A method for estimating a life of a power source of an implantable medical device (IMD), the method comprising:

providing:

an open-loop stimulation therapy; and

a closed-loop stimulation therapy, wherein the closed-loop stimulation therapy comprises at least one of:

a patient initiated stimulation therapy; and

an event detection stimulation therapy;

detecting:

a change in one or more body parameters; and

a patient input;

triggering a change from the open-loop stimulation to the closed loop stimulation therapy based upon a detection of either a change in one or more body parameter or a patient input; and

calculating an open-loop life estimate of the power source, wherein the open-loop life estimate is based upon a set of open-loop stimulation parameters;

calculating a closed-loop charge consumption, wherein the closed-loop charge consumption is based upon a set of closed loop stimulation parameters; and

providing a first operable life estimate, wherein the first operable life estimate comprises a difference resulting from subtracting the closed-loop charge consumption from the open-loop life estimate.

11. The method of claim 10 further comprising updating the first operable life estimate based on changing a parameter value corresponding to the open-loop therapy.

12. The method of claim 10 further comprising updating the first operable life estimate based on changing a parameter value corresponding to the closed-loop therapy.

13. The method of claim 10 further comprising a providing the first operable life estimate to an external device.

14. The method of claim 10 , wherein at least one of the open-loop stimulation parameters comprises at least one of:

a time period;

a duty cycle, wherein the duty cycle comprises a ratio of an on-time to a combination of the on-time and an off-time;

a current magnitude;

a pulse width;

a frequency; and

burst duration.

15. The method of claim 10 , wherein at least one of the closed-loop stimulation parameters comprises at least one of:

a time period;

a duty cycle, wherein the duty cycle comprises a ratio of an on-time to a combination of the on-time and an off-time;

a current magnitude;

a pulse width;

a frequency; and

burst duration.

16. The method of claim 10 further comprises specifying a detection level associated with each of the one or more body parameters.

17. The method of claim 10 , wherein the first operable life estimate represents the entire life of the power source.

18. The method of claim 10 further comprising store a plurality of operable life estimates.

Assignments (7)