Data storage for an infusion pump system

• US 7,935,105 B2
• Filed: 09/07/2007
• Issued: 05/03/2011
• Est. Priority Date: 09/07/2007
• Status: Active Grant

• Current Assignee: Insulet Corporation, M2 Medical Group Holdings, Inc.
• Original Assignee: Asante Solutions, Inc
• Inventors: Miller, Steve, Mochel, Ken, Rich, David, Estes, Mark C.
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): BERDICHEVSKY, AARTI
• Application Number:
  US11/851,986
• Publication Number:
  US 20090069746A1
• Time in Patent Office: 1,334 Days
• Field of Search: 604/65, 604/66, 604/67, 604/151, 604/890.1, 604/891.1
• US Class Current: 604/890.1
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/31518 designed to reduce the overall size of an injection device, e.g. using flexible or pivotally connected chain-like rod members
• CPC Class Codes: A61M 2205/16 with back-up system in case of failure
• CPC Class Codes: A61M 2205/52 with memories providing a history of measured variating parameters of apparatus or patient
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/14566 with a replaceable reservoir for receiving a piston rod of the pump
• CPC Class Codes: A61M 5/172 electrical or electronic A61M5/16804, A61M5/16831 take precedence
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/60 for the operation of medical equipment or devices

Abstract

A pump system can include a pump device and a controller device removably attachable to the pump device. The controller device can be reusable, and one or more pump devices can be disconnected and reconnected to the controller device. As such, some pump usage data can be conveniently stored in the pump device itself. In such circumstances, the controller device can receive data related to the pump'"'"'s history or other usage when the pump device is attached to the controller.

Claims

1. A wearable infusion pump system comprising:

a pump device including a pump housing structure that defines a space to receive a medicine source and a cap device attachable to the pump housing structure such that a penetration member of the cap device extends into an interior of the space to penetrate a septum when the medicine source is received in the space, the pump device including a drive system to dispense medicine from the pump device when the medicine source is received in the space, the drive system comprising a mechanical actuator housed inside the pump device so that the drive system is adapted to move a plunger toward medicine of the medicine source, the pump device including a memory device storing an event log of pump system operations;

a controller device removably attachable to the pump device and including a user interface display and buttons for programming the controller device, wherein when the controller device is removably attached to the pump device, the controller device activates the drive system to dispense the medicine source and records data to the event log on the memory device.

2. The system of claim 1, wherein the event log includes time and date information for medicine dispensing operations.

3. The system of claim 1, wherein the controller device includes a user interface and the event log includes time and date information for user input.

4. The system of claim 1, wherein the event log includes time and date information for sensor inputs.

5. The system of claim 1, wherein the pump device is non-reusable and disposable.

6. The system of claim 1, wherein the memory device of the pump device stores data indicative of a charge level of the battery, and wherein when the controller device is removably attached to the pump device, the controller device activates the drive system to dispense the medicine source and receives the data indicative of the charge level of the battery.

7. The system of claim 6, wherein the controller device includes a user interface.

8. The system of claim 6, wherein the pump device is non-reusable and disposable.

9. The system of claim 6, wherein the controller device includes a rechargeable energy source.

10. The system of claim 6, wherein the battery is a non-rechargeable battery.

11. The system of claim 10, wherein the data regarding the charge level of the battery indicates whether the battery is in a depleted or non-depleted state.

12. The system of claim 10, wherein the battery is a zinc-air cell.

13. A wearable infusion pump system comprising:

a disposable and non-reusable pump device including a pump housing structure that defines a space to receive a medicine cartridge, the pump device including a drive system to dispense medicine from the pump device when the medicine cartridge is received in the space, the drive system comprising a mechanical actuator housed inside the pump housing structure so that the drive system is adapted to cause motion to a plunger within the medicine cartridge, wherein the pump housing structure of the disposable and non-reusable pump device houses a battery-powered actuator of the drive system and a memory device storing an event log of pump system operations on the memory device;

a reusable controller device removably attachable to the pump device, the controller device including a user interface, wherein when the controller device is removably attached to the pump device the controller device activates the drive system to dispense the medicine source and records data to the event log on the memory device, the controller device including control circuitry communicating control signals to the drive system to dispense the medicine.

14. The system of claim 13, wherein the event log includes time and date information for medicine dispensing operations.

15. The system of claim 13, wherein the user interface of the controller device includes a display device and buttons for programming the controller device.

16. The system of claim 13, wherein the event log includes time and date information for sensor inputs.

17. The system of claim 13, wherein the memory device housed inside the pump housing structure stores an energy requirement profile to perform a medicine dispensing operation, and wherein when the controller device is removably attached to the pump device, the controller device receives the energy requirement profile from the memory device and initiates a medicine dispensing operation by supplying a pattern of voltage pulses from the energy storage source to the drive system, the pattern of voltage pulses being correlated to the energy requirement profile of the drive system.

18. A wearable infusion pump system comprising:

a pump device defining a space to receive a medicine source, the pump device including a drive system to dispense medicine from the pump device when the medicine source is received in the space, the drive system comprising a mechanical actuator housed inside the pump device, the pump device including a memory device storing an event log of pump system operations;

a controller device removably attachable to the pump device, wherein when the controller device is removably attached to the pump device, the controller device activates the drive system to dispense the medicine source and records data to the event log on the memory device,

wherein the memory device of the pump device stores an energy requirement profile to perform a medicine dispensing operation, the energy requirement profile being defined by the drive system, and wherein when the controller device is removably attached to the pump device, the controller device receives the energy requirement profile from the memory device and initiates a medicine dispensing operation by supplying a pattern of voltage pulses from the energy storage source to the drive system, the pattern of voltage pulses being correlated to the energy requirement profile of the drive system.

19. The system of claim 18, wherein the controller device detects a time period for completing a medicine dispensing operation, adjusts the energy requirement profile for the pump device based on the detected time period, and records the adjusted energy requirement profile on the memory device.

20. The system of claim 18, wherein the energy requirement profile is a torque profile.

21. The system of claim 18, wherein the pump device is non-reusable and disposable.

22. A method of storing information regarding a pump device, the method comprising:

initiating one or more pump system operations of a pump device removably attached to a controller device having a user interface display and buttons for programming the controller device, the pump device including a pump housing structure that retains therein a medicine reservoir, a drive system including a battery-powered actuator housed inside the pump housing structure so that the drive system causes motion to a plunger to dispense medicine from the medicine reservoir, and a memory device storing an event log of pump system operations, the controller device communicating data to the memory device housed inside the pump housing structure when the controller device is removably attached to the pump device; and

communicating event log data from the controller device to memory device housed inside the pump housing structure of the pump device, the event log data being indicative of the pump system operations.

23. The method of claim 22, wherein the event log includes time and date information for medicine dispensing operations.

24. The method of claim 22, wherein the controller device includes a user interface and the event log includes time and date information for user input.

25. The method of claim 22, wherein the event log includes time and date information for sensor inputs.

26. The method of claim 22, wherein the data is indicative of operational history of the pump device.

27. The method of claim 22, further comprising:

determining a time period for the drive system to complete the medicine dispensing operation;

adjusting an energy requirement profile for the pump device, wherein the data recorded on the memory device further comprises the adjusted energy requirement profile.

28. The method of claim 22, wherein the pump device includes a battery and the data recorded on the memory device further comprises data indicate of a charge level of the battery.

29. The method of claim 22, further comprising determining if the pump device has exceeded a threshold number of pump operations.