Activity sensing techniques for an infusion pump system

• US 8,328,754 B2
• Filed: 02/11/2011
• Issued: 12/11/2012
• Est. Priority Date: 09/07/2007
• Status: Active Grant

• Current Assignee: Insulet Corporation, M2 Medical Group Holdings, Inc.
• Original Assignee: Asante Solutions, Inc
• Inventors: Estes, Mark C., Ruppert, Deb
• Primary Examiner(s): Sirmons, Kevin C
• Assistant Examiner(s): HAYMAN, IMANI N
• Application Number:
  US13/025,857
• Publication Number:
  US 20110130716A1
• Time in Patent Office: 669 Days
• Field of Search: 604/890.1, 604/131, 604/65, 604/66, 604/151
• US Class Current: 604/66
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• 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 2202/04 Liquids
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/3569 sublocal, e.g. between console and disposable
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2230/005 Parameter used as control input for the apparatus
• CPC Class Codes: A61M 2230/201 Glucose concentration
• CPC Class Codes: A61M 2230/63 Motion, e.g. physical activity
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• 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: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

Some embodiments of a wearable infusion pump system can include a pump device having a drive system to dispense a medicine to a user, an activity sensor that detects a possible change in an activity level of the user, and a controller to activate the drive system to dispense the medicine to the user. The controller device can query the user to indicate whether a detected activity level of the user represents an actual change in the activity level of the user. The controller device can alter the medicine dispensing schedule based on the user indicated changes in activity level.

Claims

1. A wearable infusion pump system, comprising:

a pump device including a drive system to dispense a medicine to a user;

an activity sensor to detect signals indicative of an activity level of the user; and

a controller to activate the drive system to dispense the medicine to the user based on a medicine dispensing schedule, the controller to query the user to confirm whether a detected activity level of the user represents an actual activity level of the user and to alter the medicine dispensing schedule based on the user-indicated activity level.

2. The system of claim 1, wherein the controller comprises a user interface to query the user to confirm whether the detected activity level of the user represents the actual activity level of the user.

3. The system of claim 1, wherein the user interface prompts the user to authorize a decrease in the dispensation of medicine that is determined in response to the detected activity level.

4. The system of claim 1, further comprising a body-worn glucose sensor device in wireless communication with the controller.

5. The system of claim 4, wherein the body-worn glucose sensor device comprises the activity sensor.

6. The system of claim 1, wherein the pump device comprises a pump housing that defines a space that extends in a longitudinal direction to receive the medicine.

7. The system of claim 6, wherein the pump device is removably attached to the controller device by guided movement of the pump device relative to the controller device in the longitudinal direction.

8. A wearable infusion pump system, comprising:

a pump device including a drive system to dispense a medicine to a user;

an activity sensor to detect signals indicative of an activity level of the user; and

a controller to activate the drive system to dispense the medicine to the user based on a medicine dispensing schedule, the controller to query the user to indicate whether a detected activity level of the user represents an actual activity level of the user and to alter the medicine dispensing schedule based on the user-indicated activity level;

wherein a first electrical connector of the pump device mates with a second electrical connector of the controller when the controller and the pump device are removably attached in a fixed relationship.

21. The system of claim 8, wherein the controller comprises a user interface to query the user to confirm whether the detected activity level of the user represents the actual activity level of the user.

22. The system of claim 8, wherein the user interface prompts the user to authorize a decrease in the dispensation of medicine that is determined in response to the detected activity level.

23. The system of claim 8, further comprising a body-worn glucose sensor device in communication with the controller.

9. A wearable infusion pump system, comprising:

a wearable pump device including a drive system to dispense a medicine to a user;

an activity sensor to detect signals indicative of an activity level of the user; and

control circuitry to activate the drive system of the wearable pump device to dispense the medicine to the user based on a medicine dispensing schedule, the control circuitry being electrically connected to the activity sensor and electrically connected to a user interface that, in response an activity level detected by the activity sensor, queries the user to confirm whether the detected activity level of the user represents an actual activity level of the user, wherein the control circuitry is configured to decrease the dispensation of medicine in response to confirmation of the detected activity level.

10. The system of claim 9, wherein the user interface prompts the user to authorize a decrease in the dispensation of medicine that is determined in response to the detected activity level.

11. The system of claim 9, further comprising a body-worn glucose sensor device in communication with the control circuitry.

12. The system of claim 9, wherein the pump device comprises a pump housing that defines a space that slidably receives a medicine cartridge containing the medicine.

13. The system of claim 12, wherein the pump device comprises a cap component that covers the space and attaches to the pump housing when the space receives the medicine cartridge therein, the cap component including a penetrating member to penetrate into the medicine cartridge when the cap component attaches to the pump housing.

14. The system of claim 9, wherein a first electrical connector of the pump device mates with a second electrical connector of the controller when the controller and the pump device are removably attached in a fixed relationship.

15. A portable and wearable insulin pump system, comprising:

a disposable and non-reusable pump device having a drive system to dispense insulin, the pump device defining a space to receive an insulin cartridge;

a reusable controller device removably attached to the pump device, the controller device having control circuitry that communicates control signals to the drive system to dispense insulin at a dispensation rate when the controller device removably attached to the pump device, the controller device including a user interface; and

an activity sensor arranged in the reusable controller and electrically connected to the control circuitry, the activity sensor providing signals indicative of activity levels of the user;

wherein the controller device queries the user to indicate whether a detected activity level of the user represents an actual change in the activity level of the user and the controller device alters the medicine dispensing schedule based on the user-indicated activity level.

16. The system of claim 15, wherein the controller device comprises a user interface to query the user to confirm whether the detected activity level of the user represents the actual activity level of the user.

17. The system of claim 16, wherein the user interface prompts the user to authorize a decrease in the dispensation of medicine that is determined in response to the detected activity level.

18. The system of claim 15, further comprising a body-worn glucose sensor device in communication with the control circuitry.

19. The system of claim 15, wherein the pump device comprises a cap component that covers the space when the space receives the insulin cartridge therein, the cap component including a penetrating member to penetrate into the insulin cartridge when the cap component covers the space.

20. The system of claim 15, wherein a first electrical connector of the pump device mates with a second electrical connector of the controller when the controller and the pump device are removably attached in a fixed relationship.