DISPOSABLE INFUSION DEVICE WITH REFILL PREVENTION

• US 20090156989A1
• Filed: 02/20/2009
• Published: 06/18/2009
• Est. Priority Date: 09/28/2007
• Status: Abandoned Application

• Current Assignee: Calibra Medical, Inc. (CeQur SA)
• Original Assignee: Calibra Medical, Inc. (CeQur SA)
• Inventors: Cross, Brett, Carter, Brett J., Adams, John M.
• Application Number:
  US12/390,366
• Publication Number:
  US 20090156989A1
• Time in Patent Office: Days
• US Class Current: 604/65
• CPC Class Codes: A61M 2039/009 Means for limiting access to the septum, e.g. shields, grids
• CPC Class Codes: A61M 5/1424 Manually operated pumps
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/1684 by detecting the amount of infusate remaining, e.g. signalling end of infusion

Abstract

A wearable infusion device prevents reservoir refilling. The device includes a base adapted to be adhered to a patient'"'"'s skin, a reservoir that holds a liquid medicament, and a cannula that delivers liquid medicament from the reservoir to the patient. The device further includes a fill port communicating with the reservoir to permit the reservoir to be provided with the liquid medicament, and a lock-out that prevents the reservoir from being refilled through the fill port after the reservoir has been provided with the liquid medicament.

Claims

1-16. -16. (canceled)

17. A wearable infusion device comprising:

a reservoir that holds a liquid medicament;

an outlet port that delivers the liquid medicament to a patient;

a pump that displaces a volume of the liquid medicament to the outlet port when actuated;

a control that actuates the pump;

a fill port communicating with the reservoir to permit the reservoir to be filled with the liquid medicament; and

a lock-out that prevents the reservoir from being refilled after the reservoir has been filled.

18. The device of claim 17, wherein the lock-out blocks the fill port.

19. The device of claim 17, wherein the lock-out prevents the reservoir from being refilled after the reservoir has been once filled.

20. The device of claim 17, wherein the lock-out is responsive to pressure to prevent the reservoir from being refilled after the reservoir has been filled.

21. The device of claim 20, wherein the lock-out is responsive to pressure within the fill port.

22. The device of claim 20, further comprising a chamber between the fill port and the reservoir, and wherein the lock-out senses pressure within the chamber.

23. The device of claim 22, wherein the lock-out includes a diaphragm for sensing pressure within the chamber.

24. The device of claim 17, wherein the lock-out is responsive to the reservoir being at a given level to prevent the reservoir from being refilled.

25. The device of claim 24, wherein the lock-out blocks the fill port.

26. A wearable infusion device comprising:

a base adapted to be adhered to a patient'"'"'s skin;

a reservoir that holds a liquid medicament;

a cannula that delivers liquid medicament from the reservoir to the patient;

a fill port communicating with the reservoir to permit the reservoir to be provided with the liquid medicament; and

a lock-out that prevents the reservoir from being refilled through the fill port after the reservoir has been provided with the liquid medicament.

27. The device of claim 26, wherein the lock-out blocks the fill port.

28. The device of claim 26, wherein the lock-out prevents the reservoir from being refilled after the reservoir has once been provided with the liquid medicament.

29. The device of claim 26, wherein the lock-out is responsive to pressure to prevent the reservoir from being refilled through the fill port after the reservoir has once been provided with the liquid medicament.

30. The device of claim 29, wherein the lock-out is responsive to pressure within the fill port.

31. The device of claim 29, further comprising a chamber between the fill port and the reservoir, and wherein the lock-out senses pressure within the chamber.

32. The device of claim 31, wherein the lock-out includes a diaphragm for sensing pressure within the chamber.

33. The device of claim 26, wherein the lock-out is responsive to the reservoir being at a given level to prevent the reservoir from being refilled.

34. The device of claim 33, wherein the lock-out blocks the fill port.