Device longevity prediction for a device having variable energy consumption

• US 8,761,884 B2
• Filed: 04/14/2011
• Issued: 06/24/2014
• Est. Priority Date: 04/14/2011
• Status: Active Grant

• Current Assignee: LivaNova USA, Inc. (LivaNova Plc)
• Original Assignee: Cyberonics, Inc
• Inventors: Colborn, John C.
• Primary Examiner(s): Gedeon, Brian T
• Assistant Examiner(s): TEJANI, ANKIT D
• Application Number:
  US13/086,667
• Publication Number:
  US 20120265266A1
• Time in Patent Office: 1,167 Days
• Field of Search: None
• US Class Current: 607/29
• CPC Class Codes: A61N 1/36053 adapted for vagal stimulation A61N1/36114 takes precedence
• CPC Class Codes: A61N 1/36064 Epilepsy
• CPC Class Codes: A61N 1/36114 Cardiac control, e.g. by vagal stimulation stimulating the heart A61N1/362
• CPC Class Codes: A61N 1/36135 using physiological parameters
• CPC Class Codes: A61N 1/36139 with automatic adjustment
• CPC Class Codes: A61N 1/36146 specified by the stimulation parameters
• CPC Class Codes: A61N 1/37235 Aspects of the external programmer
• CPC Class Codes: A61N 1/37247 User interfaces, e.g. input or presentation means
• CPC Class Codes: A61N 1/37264 Changing the program; Upgrading firmware
• CPC Class Codes: A61N 1/378 Electrical supply

Abstract

A system and method for estimating the longevity of an implantable medical device (IMD). In one embodiment of a method for estimating a life of a power source of an implantable medical device, a first life estimate of the power source is determined based on a first open-loop value corresponding to an open-loop parameter for open-loop therapy delivery, a first closed loop value corresponding to a closed-loop parameter for closed-loop therapy delivery, and prior usage data corresponding to prior therapy delivery. The first life estimate of the power source is displayed. The first life estimate displayed includes a first open-loop portion associated with open-loop therapy delivery and a first closed-loop portion associated with closed-loop therapy delivery.

Claims

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

determining a first life estimate of the power source based on a first open-loop value corresponding to an open-loop parameter for open-loop therapy delivery, a first closed-loop value corresponding to a closed-loop parameter for closed-loop therapy delivery, a second closed-loop value corresponding to manually-initiated therapy delivery where the manually-initiated therapy delivery was initiated by a patient, and prior usage data corresponding to prior therapy delivery;

displaying one or more automatic close-loop therapy energy usages;

displaying one or more automatic close-loop detection sensitivity options; and

modifying an automatic close-loop detection sensitivity based on at least one of the one or more automatic close-loop therapy energy usages and the one or more automatic close-loop detection sensitivity options.

2. The method of claim 1, wherein the step of modifying the automatic close-loop detection sensitivity is to reduce the automatic close-loop detection sensitivity based on at least one of the one or more automatic close-loop therapy energy usages and the one or more automatic close-loop detection sensitivity options.

3. The method of claim 1, wherein the second closed-loop portion associated with the manually-initiated therapy delivery is different from the first closed-loop portion associated with the closed-loop therapy delivery.

4. The method of claim 1, further comprising:

receiving a second open-loop value corresponding to the open-loop parameter, wherein the second open-loop value is different from the first open-loop value;

determining a second life estimate of the power source based on the second open-loop value, the first closed-loop value, and the prior usage data; and

displaying the second life estimate of the power source, the second life estimate having the first closed-loop portion and a second open-loop portion, wherein the second open-loop portion is different from the first open-loop portion.

5. The method of claim 1, further comprising:

receiving a second open-loop value corresponding to the open-loop parameter, wherein the second open-loop value is different from the first open-loop value;

receiving the second closed-loop value corresponding to the manually-initiated therapy delivery, wherein the second closed-loop value is different from the first closed-loop value;

determining a second life estimate of the power source based on the second open-loop value, the second closed-loop value, and the prior usage data.

6. The method of claim 1, wherein the prior usage data includes at least one of prior usage rates of the power source and a number of closed-loop therapies delivered.

7. The method of claim 1, wherein the open-loop therapy delivery and the closed-loop therapy delivery each comprise delivery of an electrical stimulation to a structure in a patient'"'"'s body.

8. An implantable medical device (IMD) comprising:

one or more memory modules; and

one or more processors configured to estimate a life of a power source of the IMD by;

determining a first life estimate of the power source based on a first open-loop value corresponding to an open-loop parameter for open-loop therapy delivery, a first closed-loop value corresponding to a closed-loop parameter for closed-loop therapy delivery, a second closed-loop value corresponding to manually-initiated therapy delivery where the manually-initiated therapy delivery was initiated by a patient, and prior usage data corresponding to prior therapy delivery;

displaying via an external display one or more automatic close-loop therapy energy usages;

displaying via the external display one or more automatic close-loop detection sensitivity options; and

modifying an automatic close-loop detection sensitivity based on at least one of the

one or more automatic close-loop therapy energy usages and the one or more

automatic close-loop detection sensitivity options.

9. The IMD of claim 8, wherein the one or more processors are further configured to modify the automatic close-loop detection sensitivity by reducing the automatic close-loop detection sensitivity based on at least one of the one or more automatic close-loop therapy energy usages and the one or more automatic close-loop detection sensitivity options.

10. The IMD of claim 8, wherein the second closed-loop portion associated with the manually-initiated therapy delivery is different from the first closed-loop portion associated with the closed-loop therapy delivery.

11. The IMD of claim 8, wherein the one or more processors are further configured to:

receive a second open-loop value corresponding to the open-loop parameter, wherein the second open-loop value is different from the first open-loop value;

determine a second life estimate of the power source based on the second open-loop value, the first closed-loop value, and the prior usage data; and

display the second life estimate of the power source, the second life estimate having the first closed-loop portion and a second open-loop portion, wherein the second open-loop portion is different from the first open-loop portion.

12. The IMD of claim 8, wherein the one or more processors are further configured to:

receive a second open-loop value corresponding to the open-loop parameter, wherein the second open-loop value is different from the first open-loop value;

receive the second closed-loop value corresponding to the manually-initiated therapy delivery, wherein the second closed-loop value is different from the first closed-loop value;

determine a second life estimate of the power source based on the second open-loop value, the second closed-loop value, and the prior usage data.

13. The IMD of claim 8, wherein the prior usage data includes at least one of prior usage rates of the power source and a number of closed-loop therapies delivered.

14. The IMD of claim 8, wherein the open-loop therapy delivery and the closed-loop therapy delivery each comprise delivery of an electrical stimulation to a structure in a patient'"'"'s body.

16. The system of claim 14, wherein the one or more processors are further configured to modify the automatic close-loop detection sensitivity by reducing the automatic close-loop detection sensitivity based on at least one of the one or more automatic close-loop therapy energy usages and the one or more automatic close-loop detection sensitivity options.

17. The system of claim 14, wherein the second closed-loop portion associated with the manually-initiated therapy delivery is different from the first closed-loop portion associated with the closed-loop therapy delivery.

18. The system of claim 14, wherein the one or more processors are further configured to:

receive a second open-loop value corresponding to the open-loop parameter, wherein the second open-loop value is different from the first open-loop value;

determine a second life estimate of the power source based on the second open-loop value, the first closed-loop value, and the prior usage data; and

display the second life estimate of the power source, the second life estimate having the first closed-loop portion and a second open-loop portion, wherein the second open-loop portion is different from the first open-loop portion.

19. The system of claim 14, wherein the one or more processors are further configured to:

receive a second open-loop value corresponding to the open-loop parameter, wherein the second open-loop value is different from the first open-loop value;

receive the second closed-loop value corresponding to the manually-initiated therapy delivery, wherein the second closed-loop value is different from the first closed-loop value;

determine a second life estimate of the power source based on the second open-loop value, the second closed-loop value, and the prior usage data.

20. The system of claim 14, wherein the prior usage data includes at least one of prior usage rates of the power source and a number of closed-loop therapies delivered.

21. The system of claim 14, wherein the open-loop therapy delivery and the closed-loop therapy delivery each comprise delivery of an electrical stimulation to a structure in a patient'"'"'s body.

15. A medical system comprising:

one or more external computing devices; and

one or more implantable medical devices where the one or more implantable medical devices each include one or more memory modules and one or more processors configured to estimate a life of a power source for the implantable medical device by;

determining a first life estimate of the power source based on a first open-loop value corresponding to an open-loop parameter for open-loop therapy delivery, a first closed-loop value corresponding to a closed-loop parameter for closed-loop therapy delivery, a second closed-loop value corresponding to manually-initiated therapy delivery where the manually-initiated therapy delivery was initiated by a patient, and prior usage data corresponding to prior therapy delivery;

displaying via the one or more external computing devices one or more automatic close-loop therapy energy usages;

displaying via the one or more external computing devices one or more automatic close-loop detection sensitivity options; and

modifying an automatic close-loop detection sensitivity based on at least one of the one or more automatic close-loop therapy energy usages and the one or more automatic close-loop detection sensitivity options.