Predictive infusion device operations and related methods and systems

1. An infusion device comprising:

a motor operable to deliver fluid to a body of a user; and

a control module coupled to the motor, wherein the control module is configured to:

verify that a refractory time period has elapsed after enabling operation of the motor; and

automatically suspend operation of the motor after the refractory time period has elapsed, in response to determining a current measurement value for a physiological condition in the body of the user is less than a suspend enable threshold value and a predicted value for the physiological condition of the user is less than a predictive suspend threshold value.

2. The infusion device of claim 1 , wherein the control module is configured to automatically enable operation of the motor in response to determining the current measurement value is greater than a resume enable threshold value and the predicted value is greater than a predictive enable threshold value.

3. The infusion device of claim 1 , further comprising a user interface to receive an acknowledgment input, wherein the control module is configured to determine the refractory time period based on responsiveness of the user.

4. The infusion device of claim 1 , wherein the control module is configured to verify that a minimum suspension time period has elapsed after automatically suspending operation of the motor prior to automatically enabling operation of the motor.

5. The infusion device of claim 1 , further comprising a user interface to receive a suspend protection threshold value, wherein the control module is coupled to the user interface to obtain the suspend protection threshold value and configured to determine the predictive suspend threshold value based at least in part on the suspend protection threshold value.

6. The infusion device of claim 5 , wherein:

the control module is configured to determine a resume enable threshold value based at least in part on the suspend protection threshold value and automatically enable operation of the motor to deliver the fluid to the user after automatically suspending operation of the motor when a subsequent measurement value is greater than the resume enable threshold value and a subsequent predicted value is greater than a predictive resume threshold value; and

the predictive resume threshold value is greater than the resume enable threshold value.

7. The infusion device of claim 1 , the fluid comprising insulin, wherein the control module is configured to determine a current insulin on board for the user and automatically enable operation of the motor to deliver the fluid to the user after automatically suspending operation of the motor when the current insulin on board is less than a threshold insulin on board.

8. The infusion device of claim 1 , wherein the control module is configured to determine the predicted value for the physiological condition of the user at a time in the future based at least in part on the current measurement value.

9. An infusion system comprising:

a sensing arrangement configured to obtain a current measurement value for a physiological condition from a body of a user; and

an infusion device comprising:

a motor operable to deliver fluid to the body of the user; and

a control module coupled to the motor and communicatively coupled to the sensing arrangement, wherein the control module is configured to:

receive the current measurement value from the sensing arrangement;

verify that a refractory time period has elapsed after enabling operation of the motor; and

automatically suspend operation of the motor after the refractory time period has elapsed, in response to determining the current measurement value is less than a suspend enable threshold value and a predicted value for the physiological condition of the user is less than a predictive suspend threshold value.

10. An infusion system comprising:

a sensing arrangement to obtain a current measurement value for a physiological condition from a body of a user; and

an infusion device communicatively coupled to the sensing arrangement, wherein the infusion device is configured to:

receive the current measurement value from the sensing arrangement;

verify that a refractory time period has elapsed after enabling operation of the infusion device to deliver fluid to the body of the user; and

automatically suspend operation of the infusion device to deliver fluid after the refractory time period has elapsed, in response to determining the current measurement value is less than a suspend enable threshold value and a predicted value for the physiological condition of the user is less than a predictive suspend threshold value.

11. The infusion system of claim 10 , wherein the infusion device is configured to automatically resume operation of the infusion device to deliver the fluid in response to determining the current measurement value is greater than a resume enable threshold value and the predicted value is greater than a predictive enable threshold value.

12. The infusion system of claim 11 , wherein the infusion device is configured to verify a minimum suspension time period has elapsed after automatically suspending operation of the infusion device to deliver the fluid prior to automatically enabling operation.

13. The infusion system of claim 10 , further comprising a user interface to receive a suspend protection threshold value, wherein the infusion device is configured to determine the predictive suspend threshold value based at least in part on the suspend protection threshold value.

14. The infusion system of claim 13 , wherein:

the infusion device is configured to determine a resume enable threshold value based at least in part on the suspend protection threshold value and automatically enable operation of the infusion device to deliver the fluid to the user after automatically suspending operation when a subsequent measurement value is greater than the resume enable threshold value and a subsequent predicted value is greater than a predictive resume threshold value; and

the predictive resume threshold value is greater than the resume enable threshold value.

15. The infusion system of claim 10 , the fluid comprising insulin, wherein the infusion device is configured to determine a current insulin on board for the user and automatically enable operation of the infusion device to deliver the fluid to the user after automatically suspending operation when the current insulin on board is less than a threshold insulin on board.

16. An infusion device comprising:

a motor operable to deliver fluid to a body of a user; and

a control module coupled to the motor, wherein the control module is configured to:

verify that a minimum suspension time period has elapsed after suspending operation of the motor; and

automatically enable operation of the motor after the minimum suspension time period has elapsed, in response to determining a current measurement value for a physiological condition in the body of the user is greater than a resume enable threshold value and a predicted value for the physiological condition of the user is greater than a predictive resume threshold value.

17. The infusion device of claim 16 , wherein the control module is configured to verify a refractory time period has elapsed after enabling operation of the motor before automatically suspending operation of the motor in response to determining a subsequent measurement value for the physiological condition in the body of the user is less than a suspend enable threshold value and a subsequent predicted value for the physiological condition of the user is less than a predictive suspend threshold value.