Infusion pump assembly with a backup power supply

• US 8,066,672 B2
• Filed: 10/10/2008
• Issued: 11/29/2011
• Est. Priority Date: 10/10/2008
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Mandro, Marc A.
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): Landry, II; Gerald
• Application Number:
  US12/249,540
• Publication Number:
  US 20100094220A1
• Time in Patent Office: 1,145 Days
• Field of Search: 417/477.2, 600431-435, 604 65- 67, 604118-121, 604132-147, 604151-155, 6048901-8921
• US Class Current: 604/151
• CPC Class Codes: A61M 2205/16 with back-up system in case of failure
• CPC Class Codes: A61M 2205/17 with redundant control systems
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/1452 pressurised by means of pistons
• CPC Class Codes: A61M 5/168 Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body flow control in general G05D7/00
• CPC Class Codes: A61M 5/16831 Monitoring, detecting, signalling or eliminating infusion flow anomalies low-level float-valves causing cut-off A61M5/40; indicating or recording presence, absence or direction of flow in general G01P13/0066
• CPC Class Codes: A61M 5/16854 by monitoring line pressure
• CPC Class Codes: A61M 5/5086 for indicating if defective, used, tampered with or unsterile
• CPC Class Codes: H01M 10/4264 with capacitors
• CPC Class Codes: H01M 16/00 Structural combinations of different types of electrochemical generators
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/345 using capacitors as storage or buffering devices
• CPC Class Codes: H02J 9/061 for DC powered loads
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

An infusion pump assembly includes a reservoir assembly configured to contain an infusible fluid. A motor assembly is configured to act upon the reservoir assembly and dispense at least a portion of the infusible fluid contained within the reservoir assembly. Processing logic is configured to control the motor assembly. A primary power supply is configured to provide primary electrical energy to at least a portion of the processing logic. A backup power supply is configured to provide backup electrical energy to the at least a portion of the processing logic in the event that the primary power supply fails to provide the primary electrical energy to the at least a portion of the processing logic.

Claims

1. An infusion pump assembly comprising:

a housing;

a reservoir assembly disposed within the housing and configured to contain an infusible fluid;

a motor assembly disposed within the housing and configured to act upon the reservoir assembly and dispense at least a portion of the infusible fluid contained within the reservoir assembly;

processing logic disposed within the housing and configured to control the motor assembly;

a primary power supply disposed within the housing and configured to provide primary electrical energy to at least a portion of the processing logic; and

a backup power supply disposed within the housing and configured to provide backup electrical energy to the at least a portion of the processing logic in the event that the primary power supply fails to provide the primary electrical energy to the at least a portion of the processing logic;

wherein the processing logic includes one or more circuit partitioning components configured to divide the processing logic into primary processing logic and backup processing logic; and

wherein the one or more circuit partitioning components includes one or more of a diode assembly and a current limiting assembly.

2. The infusion pump assembly of claim 1 wherein the primary power supply includes a first battery.

3. The infusion pump assembly of claim 1 wherein the backup power supply is a super capacitor assembly.

4. The infusion pump assembly of claim 1 wherein the primary processing logic includes a primary microprocessor.

5. The infusion pump assembly of claim 1 wherein the backup processing logic includes a safety microprocessor.

6. The infusion pump assembly of claim 1 wherein the diode assembly is configured to allow the primary power supply to charge the backup power supply while prohibiting the backup power supply from providing backup electrical energy to the primary processing logic in the event that the primary power supply fails to provide the primary electrical energy to the primary processing logic.

7. The infusion pump assembly of claim 1 wherein the current limiting assembly is configured to limit the amount of the primary electrical energy available to charge the backup power supply.

8. The infusion pump assembly of claim 1 wherein the primary power supply is configured to provide electrical energy to one or more subsystems included within the infusion pump assembly.

9. The infusion pump assembly of claim 1 wherein the primary power supply and the backup power supply are configured to provide electrical energy to an audio system included within the infusion pump assembly.

10. The infusion pump assembly of claim 9 wherein the audio system is configured to provide an escalating alarm sequence in the event of a loss of a beacon signal, wherein the escalating alarm sequence includes at least a low-intensity alarm and a high-intensity alarm.

11. An infusion pump assembly comprising:

a housing;

a reservoir assembly disposed within the housing and configured to contain an infusible fluid;

a motor assembly disposed within the housing and configured to act upon the reservoir assembly and dispense at least a portion of the infusible fluid contained within the reservoir assembly;

processing logic disposed within the housing and configured to control the motor assembly;

a first battery disposed within the housing and configured to provide primary electrical energy to at least a portion of the processing logic; and

a super capacitor assembly disposed within the housing and configured to provide backup electrical energy to the at least a portion of the processing logic in the event that the first battery fails to provide the primary electrical energy to the at least a portion of the processing logic;

wherein the processing logic includes one or more circuit partitioning components configured to divide the processing logic into primary processing logic and backup processing logic.

12. The infusion pump assembly of claim 11 wherein the primary processing logic includes a primary microprocessor.

13. The infusion pump assembly of claim 11 wherein the backup processing logic includes a safety microprocessor.

14. The infusion pump assembly of claim 11 wherein the one or more circuit partitioning components includes one or more of a diode assembly and a current limiting assembly.

15. An infusion pump assembly comprising:

a housing;

a reservoir assembly disposed within the housing and configured to contain an infusible fluid;

a motor assembly disposed within the housing and configured to act upon the reservoir assembly and dispense at least a portion of the infusible fluid contained within the reservoir assembly;

processing logic disposed within the housing and configured to control the motor assembly;

a primary power supply disposed within the housing and configured to provide primary electrical energy to at least a portion of the processing logic; and

a backup power supply disposed within the housing and configured to provide backup electrical energy to the at least a portion of the processing logic in the event that the primary power supply fails to provide the primary electrical energy to the at least a portion of the processing logic;

wherein the processing logic includes one or more circuit partitioning components configured to divide the processing logic into primary processing logic and backup processing logic.

16. The infusion pump assembly of claim 15 wherein the primary power supply includes a first battery.

17. The infusion pump assembly of claim 15 wherein the backup power supply is a super capacitor assembly.

18. The infusion pump assembly of claim 15 wherein the primary processing logic includes a primary microprocessor.

19. The infusion pump assembly of claim 15 wherein the backup processing logic includes a safety microprocessor.

20. The infusion pump assembly of claim 15 wherein the one or more circuit partitioning components includes one or more of a diode assembly and a current limiting assembly.

21. The infusion pump assembly of claim 20 wherein the diode assembly is configured to allow the primary power supply to charge the backup power supply while prohibiting the backup power supply from providing backup electrical energy to the primary processing logic in the event that the primary power supply fails to provide the primary electrical energy to the primary processing logic.

22. An infusion pump assembly comprising:

a housing;

a reservoir assembly disposed within the housing and configured to contain an infusible fluid;

a motor assembly disposed within the housing and configured to act upon the reservoir assembly and dispense at least a portion of the infusible fluid contained within the reservoir assembly;

processing logic disposed within the housing and configured to control the motor assembly and configured to generate an alarm control signal;

an RS232 line driver circuit coupled to the processing logic and configured to receive the alarm control signal and generate an alarm output signal based, at least in part, upon the alarm control signal;

an audio driver assembly coupled to the RS232 line driver circuit and configured to receive the alarm output signal and generate an audible alarm signal based, at least in part, upon the alarm output signal;

a primary power supply disposed within the housing and configured to provide primary electrical energy to at least a portion of the processing logic; and

a backup power supply disposed within the housing and configured to provide backup electrical energy to the at least a portion of the processing logic in the event that the primary power supply fails to provide the primary electrical energy to the at least a portion of the processing logic;

wherein the processing logic includes one or more circuit partitioning components configured to divide the processing logic into primary processing logic and backup processing logic.

23. The infusion pump assembly of claim 22 wherein the audio driver assembly includes a Piezo electric diaphragm.