Infusion pump battery capacity management and battery charge alert system and method

• US 9,333,291 B2
• Filed: 01/16/2015
• Issued: 05/10/2016
• Est. Priority Date: 01/16/2014
• Status: Active Grant

• Current Assignee: ICU Medical Incorporated
• Original Assignee: Hospira Incorporated (Pfizer Inc.)
• Inventors: Jacobson, James D., Sileika, Tadas S., Day, William K.
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): Piggush, Aaron
• Application Number:
  US14/598,846
• Publication Number:
  US 20150196709A1
• Time in Patent Office: 480 Days
• Field of Search: 320/107, 320/132, 320/134, 604/67
• US Class Current: 1/1
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/332 Force measuring means
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/505 Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 2205/8212 with means or measures taken for minimising energy consumption
• CPC Class Codes: A61M 2205/8237 Charging means
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/14228 with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

Enables an infusion pump battery capacity management and battery charge alert system and method including an infusion pump with rechargeable batteries, a controller, a computer and a user interface. The infusion pump accepts a programmed infusion and selects a battery capacity assessment option to determine one or more recharge options of the batteries, and may optionally select a program delay option to execute an infusion delay and later select the battery capacity assessment option. During the battery capacity assessment option, the infusion pump calculates an anticipated power capacity requirement to execute the programmed infusion, calculates a remaining battery power capacity, compares the calculated anticipated power capacity requirement to the calculated remaining battery power capacity, and determines whether the infusion pump is able to fully execute the programmed infusion based only on the remaining battery power capacity or whether a recharge is required.

Claims

1. An infusion pump battery capacity management and battery charge alert system comprising:

an infusion pump configured to infuse a fluid into a patient comprising

one or more rechargeable batteries,

a user interface and a user interface screen, and

an infusion pump controller comprising a computer and coupled with said user interface and said user interface screen;

wherein said infusion pump accepts an infusion input comprising a programmed infusion by one or more users via said user interface;

wherein said user interface displays on said user interface screen a confirmation of said programmed infusion, and,

a battery capacity assessment option;

wherein said infusion pump controller accepts a selection input to select said battery capacity assessment option;

wherein if said infusion pump controller detects said selection input associated with said battery capacity assessment option, said infusion pump controller

calculates an anticipated power capacity requirement to execute said programmed infusion,

calculates a remaining power capacity of said one or more rechargeable batteries,

compares said calculated anticipated power capacity requirement to said calculated remaining power capacity of said one or more rechargeable batteries, and,

determines whether said infusion pump is able to fully execute said programmed infusion based only on said remaining power capacity;

wherein if said infusion pump controller determines wherein said infusion pump is able to fully execute said programmed infusion using only said remaining power capacity,

said infusion pump controller executes said programmed infusion via said infusion pump only using said remaining power capacity; and

wherein if said infusion pump controller determines wherein said infusion pump is unable to fully execute said programmed infusion only using said remaining power capacity, said infusion pump controller one or more of

executes said programmed infusion via said infusion pump, and

provides a message to said one or more users wherein a recharge time is required to fully execute said programmed infusion.

2. The infusion pump battery capacity management and battery charge alert system of claim 1, wherein said infusion pump controller

accepts a selection input to select one or more of a program delay option and a start option, and asserts a respective option;

wherein if said infusion pump controller detects said selection input associated with said start option,

said programmed infusion is executed via said infusion pump;

wherein if said infusion pump controller detects said selection input associated with said program delay option,

an infusion delay is programmed and said infusion pump controller then selects said battery capacity assessment option or selects said start option.

3. The infusion pump battery capacity management and battery charge alert system of claim 1, wherein said user interface displays on said user interface screen

a start screen with said confirmation of said programmed infusion,

a start option,

a battery charge indicator that indicates said remaining power capacity of said one or more rechargeable batteries as at least one of

a percentage,

a time,

or both said percentage and said time;

and,

requirements of said programmed infusion.

4. The infusion pump battery capacity management and battery charge alert system of claim 1, wherein said notification includes

wherein said remaining power capacity is insufficient to execute said programmed infusion,

wherein a recharge time is required during execution of said programmed infusion, and

a determination of a time before said one or more rechargeable batteries are depleted, or

a determination of time before said one or more rechargeable batteries are depleted within a safety level.

5. The infusion pump battery capacity management and battery charge alert system of claim 1, wherein when said message is provided wherein a recharge time is required to fully execute said programmed infusion, said infusion pump is further configured to enter a first recharge state or a second recharge state,

wherein said first recharge state includes a partial recharge of said one or more rechargeable batteries or a full recharge of said one or more rechargeable batteries, to fully execute said programmed infusion, and,

wherein said second recharge state includes a full recharge of said one or more rechargeable batteries and a continuous recharge of said one or more rechargeable batteries during execution of said programmed infusion.

6. The infusion pump battery capacity management and battery charge alert system of claim 5, wherein during said first recharge state, said infusion pump controller is further configured to

defer said partial or full recharge of said one or more rechargeable batteries via said one or more users,

wherein said infusion pump is further configured to determine a time deferral value and notify said one or more users with said determined time deferral value, and,

wherein said determined time deferral value is a value that allows said infusion pump to remain to operate safely before requiring said partial recharge or said fully recharge.

7. The infusion pump battery capacity management system and battery charge alert of claim 5, wherein during said second recharge state, said infusion pump controller is further configured to recharge said one or more rechargeable batteries by

partially or fully recharging said one or more rechargeable batteries before execution of said programmed infusion and then continuously charging said one or more rechargeable batteries during execution of said programmed infusion, or

partially or fully recharging said one or more rechargeable batteries during execution of said programmed infusion and continuously charging said one or more rechargeable batteries during execution of said programmed infusion, or

deferring said recharge of said one or more rechargeable batteries,

wherein said infusion pump is further configured to determine a time deferral value and notify said one or more users with said determined time deferral value,

wherein said determined time deferral value is a value that allows said infusion pump to remain to operate safely before requiring said partial recharge or said fully recharge.

8. The infusion pump battery capacity management and battery charge alert system of claim 1, further comprising at least one detector that detects ambulation of said patient, wherein when said at least one detector detects patient ambulation, said infusion pump controller

calculates and displays a required remaining duration of said programmed infusion to fully execute said programmed infusion,

calculates the anticipated power capacity requirement to fully execute said programmed infusion,

calculates the remaining power capacity of said one or more rechargeable batteries,

compares said calculated anticipated power capacity requirement to said calculated remaining power capacity of said one or more rechargeable batteries, and,

determines whether said infusion pump is able to fully execute said programmed infusion based on a comparison of said calculated required remaining duration of said programmed infusion and said calculated remaining power capacity of said one or more rechargeable batteries;

wherein when said infusion pump controller determines wherein said infusion pump is able to fully execute said programmed infusion with said required remaining duration of said programmed infusion using only said remaining power capacity,

said infusion pump controller asserts said start option and said programmed infusion is executed via said infusion pump; and

wherein when said infusion pump controller determines wherein said infusion pump is unable to fully execute said programmed infusion with said required remaining duration of said programmed infusion only using said remaining power capacity,

said infusion pump controller provides a warning to said one or more users indicating insufficient remaining power capacity.

9. The infusion pump battery capacity management and battery charge alert system of claim 8, wherein said at least one detector that detects said ambulation of said patient comprises one or more of

an accelerometer coupled with said computer wherein said accelerometer detects acceleration indicative of ambulation of said patient coupled with said infusion pump;

a wireless network interface coupled with said computer wherein said wireless interface detects wireless connectivity changes of said infusion pump coupled with said patient; and

,

a sensor that detects removal of a power input from said infusion pump.

10. The infusion pump battery capacity management and battery charge alert system of claim 9, wherein during said programmed infusion, said at least one detector detects ambulation based on removal of a power input from said infusion pump for less than a first predetermined value, and one or more of

sustained infusion pump movements for at least a predetermined value of time detected by said accelerometer, and

infusion pump movement based on a predetermined number of wireless connectivity changes detected by said wireless network interface.

11. The infusion pump battery capacity management and battery charge alert system of claim 8, wherein when said infusion pump controller determines wherein said infusion pump is unable to fully execute said programmed infusion with said required remaining duration of said programmed infusion only using said remaining power capacity, said infusion pump controller provides one or more of

a duration of charge required of said one or more rechargeable batteries prior to starting the programmed infusion to fully execute said programmed infusion with said required remaining duration of said programmed infusion, and

an anticipated time when a recharge of said one or more rechargeable batteries of said infusion pump is required during execution of said programmed infusion to fully execute said programmed infusion with said required remaining duration of said programmed infusion.

12. The infusion pump battery capacity management and battery charge alert system of claim 8, wherein said infusion pump displays on said user interface screen a time-remaining counter in hours and minutes that indicates said calculated required remaining duration of said programmed infusion to fully execute said programmed infusion.

13. The infusion pump battery capacity management and battery charge alert system of claim 8, wherein said infusion pump displays on said user interface screen a therapy-progress bar comprising

said calculated required remaining duration of said programmed infusion to fully execute said programmed infusion;

said calculated remaining power capacity of said one or more rechargeable batteries; and

a bar graph displaying a moving bar indicating the progress of said programmed infusion.

14. The infusion pump battery capacity management and battery charge alert system of claim 13, wherein said bar graph comprises

a first segment displaying a first therapy option time of an infusion,

a second segment displaying a second therapy option time of an infusion,

wherein said first therapy option time of an infusion and said second therapy option time are displayed as a rate plot,

a third segment highlighted alone one or more of said first segment and said second segment that indicates when said remaining power capacity of said one or more rechargeable batteries will be essentially exhausted.

15. The infusion pump battery capacity management and battery charge alert system of claim 8, wherein said infusion pump controller determines and calculates one or more changes in

said required remaining duration of said programmed infusion to fully execute said programmed infusion,

said anticipated power capacity requirement to execute said programmed infusion, and,

said remaining power capacity of said one or more rechargeable batteries.