DISPOSABLE INFUSION DEVICE WITH PRIME INDICATOR

• US 20090326456A1
• Filed: 06/26/2008
• Published: 12/31/2009
• Est. Priority Date: 06/26/2008
• Status: Active Grant

• Current Assignee: Calibra Medical, Inc. (CeQur SA)
• Original Assignee: Calibra Medical, Inc. (CeQur SA)
• Inventors: Cross, Brett, Marsot, Travis
• Granted Patent: US 7,927,306 B2
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61M 2005/1402 Priming
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2205/273 preventing reuse, e.g. of disposables
• CPC Class Codes: A61M 5/14216 Reciprocating piston type
• CPC Class Codes: A61M 5/1424 Manually operated pumps
• CPC Class Codes: A61M 5/14248 of the skin patch type

Abstract

A disposable wearable infusion device comprises a base that is arranged to adhere to the surface of a patient, a source arranged to provide a liquid medicament to be delivered to a patient, an outlet through which the medicament is delivered to the patient, a pump that pumps the medicament, and a conduit that conducts the pumped medicament to the outlet. The device further comprises a prime indicator that provides a visible indication that the conduit is substantially full with medicament from the reservoir to the outlet

Claims

1. A disposable wearable infusion device comprising:

a base that is arranged to adhere to the surface of a patient;

a source arranged to provide a liquid medicament to be delivered to a patient;

an outlet through which the medicament is delivered to the patient;

a pump that pumps the medicament;

a conduit that conducts the pumped medicament to the outlet; and

a prime indicator that provides a visible indication that the conduit is substantially full of medicament between the reservoir and the outlet.

2. The device of claim 1, wherein the prime indicator is adjacent the outlet.

3. The device of claim 1, further comprising a port for receiving a cannula in fluid communication with the conduit.

4. The device of claim 1, further comprising a cannula in fluid communication with the conduit and arranged to subcutaneously deliver the medicament to the patient.

5. The device of claim 1, further comprising a cannula in fluid communication with the conduit and arranged to intravenously deliver the medicament to the patient.

6. The device of claim 1, wherein the source is a reservoir containing the liquid medicament.

7. The device of claim 1, wherein the source is a reservoir arranged to be filled with the liquid medicament.

8. The device of claim 1, wherein the base that is arranged to adhere to a patient'"'"'s skin includes a surface and wherein the prime indicator is located on the surface of the base.

9. The device of claim 8, wherein the prime indicator includes a window forming a portion of the surface of the base.

10. The device of claim 9, wherein the surface of the base includes an adhesive layer that adheres the device to the patient'"'"'s skin, the adhesive layer having an opening that exposes at least a portion of the window.

11. The device of claim 10, further comprising a releasable hacking layer overlying the adhesive layer, the releasable backing layer having a cutout at least partially overlying the opening of the adhesive layer.

12. The device of claim 1, wherein the prime indicator comprises a window within the conduit that changes in transparency when wetted by the medicament.

13. The device of claim 12, wherein the window becomes more transparent when wetted by the medicament.

14. The device of claim 12, wherein the window is adjacent the outlet.

15. The device of claim 12, wherein the source comprises a reservoir, wherein the device further includes an enclosure that encloses the reservoir, pump, and conduit, and wherein the window comprises a portion of both the conduit and the enclosure.

16. The device of claim 15, wherein the window becomes more transparent when covered with the medicament.

17. The device of claim 16, wherein the prime indicator further comprises an indicia arranged to become more visible as the window becomes more transparent.

18. The device of claim 15, wherein the window is immediately adjacent the outlet.

19. The device of claim 1, wherein the pump is disposed between the source and the outlet.

20. The device of claim 19, wherein the prime indicator is immediately adjacent the outlet.

21. The device of claim 20, wherein the prime indicator comprises a window within the conduit that changes in transparency when covered with the medicament.

22. The device of claim 21, wherein the window becomes more transparent when covered with the medicament.

23. The device of claim 21, wherein the source comprises a reservoir, wherein the device further includes an enclosure that encloses the reservoir, pump, and conduit, and wherein the window comprises a portion of both the conduit and the enclosure.

24. The device of claim 19, wherein the pump comprises a piston pump.

25. The device of claim 24, wherein the outlet is arranged to receive and communicate with a cannula that delivers the medicament to beneath the patient'"'"'s skin.

27. The device of claim 25, further comprising a pad, the pad being attached to the base, the pad having an adhesive layer opposite the side attachable to the base, the pad having at least one hole therein and overlying the prime indicator window when the pad is attached to the base.

28. The device of claim 27, wherein the pad further comprises a removable non-adhesive layer that overlies the pad.

26. A disposable wearable infusion device comprising:

a base that is arranged to adhere to a patient'"'"'s skin;

a reservoir arranged to contain a liquid medicament to be delivered beneath a patient'"'"'s skin;

an outlet through which the medicament is delivered to the patient;

a pump that pumps the medicament, the pump being a piston pump;

a conduit that conducts the pumped medicament to the outlet, the pump being disposed by the conduit between the reservoir and the outlet;

an enclosure that encloses the reservoir, pump, and conduit; and

a prime indicator comprising a window shared by the conduit and the enclosure that changes in transparency when covered by the medicament and provides a visible indication that the conduit is primed with medicament and prepared to deliver medicament to the patient.