Infusion pump system

• US 8,277,435 B2
• Filed: 03/28/2011
• Issued: 10/02/2012
• Est. Priority Date: 05/05/2008
• Status: Active Grant

• Current Assignee: Insulet Corporation, M2 Medical Group Holdings, Inc.
• Original Assignee: Asante Solutions, Inc
• Inventors: Estes, Mark C.
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): PATEL, PRITESH ASHOK
• Application Number:
  US13/072,874
• Publication Number:
  US 20110178498A1
• Time in Patent Office: 554 Days
• Field of Search: 604 65- 67, 604/503, 604/504
• US Class Current: 604/503
• CPC Class Codes: A61M 2202/07 Proteins
• CPC Class Codes: A61M 2205/18 with alarm
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2205/502 User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• 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 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00

Abstract

Some embodiments of a portable infusion pump system can be configured to can be configured to adjust the sensitivity of particular detectors or alert systems based (at least in part) on information received from a monitoring device. For example, a glucose monitoring device can communication with an infusion pump assembly used to supply insulin or another medication to a user. In such circumstances, the data received from the monitoring device can be used to adjust the sensitivity of an occlusion detection system.

Claims

1. A method of operating a medical infusion pump system, comprising:

activating an occlusion detection system to detect a fluid condition in a flow path extending from a medicine reservoir in a portable pump assembly to a user, the portable pump assembly including a pump drive system to dispense medicine through the flow path to the user;

receiving glucose information from a monitoring device, the glucose information being indicative of a detected blood glucose level of the user;

adjusting a sensitivity of the occlusion detection system in response to receiving the glucose information from the monitoring device; and

outputting an occlusion alarm to the user when an occlusion is detected in the flow path.

2. The method of claim 1, wherein the sensitivity of the occlusion detection system is increased in response to glucose information received from the monitoring device that indicates the detected blood glucose level is greater than a predetermined value.

3. The method of claim 2, further comprising outputting an alarm via a user interface to indicate the detected blood glucose level is outside of a normal range.

4. The method of claim 2, further comprising outputting an alarm via a user interface to indicate a change to the occlusion detection system.

5. The method of claim 1, wherein the sensitivity of the occlusion detection system is increased in response to glucose information received from the monitoring device that indicates the detected blood glucose level is rising at a rate greater than a predetermined rate.

6. The method of claim 5, further comprising outputting an alarm via a user interface to indicate a change to the occlusion detection system.

7. The method of claim 1, wherein the sensitivity of the occlusion detection system is decreased in response to glucose information received from the monitoring device that indicates the detected blood glucose level is less than a predetermined value.

8. The method of claim 7, further comprising outputting an alarm via a user interface to indicate the detected blood glucose level is outside of a normal range.

9. The method of claim 7, further comprising outputting an alarm via a user interface to indicate a change to the occlusion detection system.

10. The method of claim 1, wherein the sensitivity of the occlusion detection system is decreased in response to glucose information received from the monitoring device that indicates the detected blood glucose level is decreasing at a rate greater than a predetermined rate.

11. The method of claim 10, further comprising outputting an alarm via a user interface to indicate a change to the occlusion detection system.

12. The method of claim 1, wherein the portable pump assembly comprises:

the portable pump housing that receives an insulin medicine for dispensation to a user, and a controller that provides electrical signals to activate the pump drive system to dispense the insulin medicine from the portable pump housing.

13. The method of claim 12, wherein the controller operates the occlusion detection system that detects the fluid condition in the flow path.

14. The method of claim 12, wherein the controller is removably attachable to the portable pump housing.

15. The method of claim 14, wherein the controller comprises a controller housing that removably attaches to the portable pump housing, the controller having an electrical connector that mates with a complementary electrical connector of the portable pump housing when the controller housing is removably attached to the portable pump housing.

16. The method of claim 14, wherein the controller comprises a user interface that includes a display device.

17. The method of claim 1, wherein the flow path comprises the medicine reservoir in which a medicine is retained, at least a portion of a cap device that secures to a portable pump housing of the portable pump assembly so as to cover an external opening of the portable pump housing, and an infusion set tube that extends from the cap device to the user.

18. The method of claim 1, wherein the occlusion detection system comprises at least one of a pressure transducer and a pressure switch to communicate signals to a controller of the portable pump assembly indicative of fluid pressure in the flow path of the insulin medicine.

19. The method of claim 1, wherein the occlusion detection system comprises an optical sensor arranged proximate to the flow path of the insulin medicine.

20. The method of claim 1, wherein the monitoring device comprises a portable housing wearable on the user'"'"'s skin, a sensor shaft that penetrates into the user'"'"'s skin, and a wireless communication device to transmit the glucose information to a wireless communication device of a controller of the portable pump assembly.