Methods and systems for providing battery feedback to patient

1. A method of generating an alarm in a mechanically assisted circulation (MAC) system, the method comprising:

monitoring a subsystem of the MAC system, by a subsystem monitor module, to detect a fault condition of the subsystem;

generating, by the subsystem monitor module, a series of indications for the fault condition indicative of whether the fault condition is detected during a respective time period;

processing the series of indications, by a fault handler module, to generate a fault status output indicative of whether the fault condition is classified as being active, the fault handler module classifying the fault condition as active if each of a first subseries of the series of indications at the end of the series of indications indicate detection of the fault condition, the first subseries including a predetermined set soaking number of the series of indications, the set soaking number being at least two; and

outputting an alarm for the fault condition in response to the fault condition being reclassified as active by the fault handler module.

2. The method of claim 1 , wherein the set soaking number is from three to ten.

3. The method of claim 1 , wherein:

the subsystem comprises a blood pump assembly; and

the fault condition comprises a fault condition of the blood pump assembly.

4. The method of claim 3 , wherein the fault condition comprises one of:

a low flow fault condition;

a pump stopped fault condition;

a low speed hazard fault condition; and

a low speed advisory fault condition.

5. The method of claim 3 , wherein the fault condition comprises a suction event fault condition.

6. The method of claim 3 , wherein the fault condition comprises one of:

excessive rotor displacement fault condition;

excessive rotor noise fault condition;

a magnetic centering fault condition;

a harmonic compensation fault condition; and

a displacement fault condition.

7. The method of claim 3 , wherein the fault condition comprises a circuit over temperature fault condition.

8. The method of claim 3 , wherein the fault condition comprises one of:

a magnetic bearing over current fault condition; and

a drive coil over current fault condition.

9. The method of claim 1 , wherein:

the subsystem comprises a battery power supply system; and

the fault condition comprises a fault condition of the battery power supply system.

10. The method of claim 9 , wherein the fault condition comprises one of:

a battery cable disconnect fault condition;

a battery relative state of charge fault condition;

a battery voltage level fault condition; and

an unknown power source fault condition.

11. The method of claim 1 , wherein:

the subsystem comprises an emergency backup battery (EBB); and

the fault condition comprises a fault condition of the blood pump assembly.

12. The method of claim 11 , wherein the fault condition comprises one of:

usage duration of the EBB exceeding a usage duration limit fault condition;

an expiration date for the EBB has passed fault condition;

a memory tag fault condition;

a communication fault condition;

a charge failure fault condition; and

the EBB being used to power the MAC system fault condition.

13. The method of claim 1 , wherein the fault conditions is classified as being active or inactive at any particular time.

14. The method of claim 1 , wherein outputting the alarm for the fault condition comprises generating the alarm for the fault condition, by an alarm handler module, in response to the fault status output indicating, for a persistence time between one and fifteen seconds, that the fault condition is classified as active.

15. The method of claim 1 , wherein the fault handler module classifies the fault condition as inactive if each of a second subseries of the series of indications at the end of the series of indications indicate non-detection of the fault condition, the second subseries including a predetermined clear soaking number of the series of indications.

16. The method of claim 15 , wherein the clear soaking number is from one to three.

17. The method of claim 15 , wherein the clear soaking number is equal to or greater than the set soaking number.

18. A method of generating an alarm in a mechanically assisted circulation (MAC) system, the method comprising:

monitoring a subsystem of the MAC system, by a subsystem monitor module, to detect a fault condition of the subsystem;

generating, by the subsystem monitor module, a series of indications indicative of whether the fault condition is detected by the subsystem monitor module;

processing the series of indications, by a fault handler module, to generate a fault status output indicative of whether the fault condition is classified as being active, the fault handler module classifying the fault condition as active if each of a first subseries of the series of indications at the end of the series of indications indicate detection of the fault condition, the first subseries including a predetermined set soaking number of the series of indications; and

outputting an alarm for the fault condition in response to the fault condition being classified as active for a persistence time between one and fifteen seconds.

19. The method of claim 18 , wherein the fault handler module classifies the fault condition as inactive if each of a second subseries of the series of indications at the end of the series of indications indicate non-detection of the fault condition, the second subseries including a predetermined clear soaking number of the series of indications.

20. The method of claim 19 , further comprising clearing the alarm in response to the fault condition be reclassified from active to inactive.