Disposable infusion device positive pressure filling apparatus and method

• US 20090163865A1
• Filed: 12/19/2007
• Published: 06/25/2009
• Est. Priority Date: 12/19/2007
• Status: Active Grant

• Current Assignee: Calibra Medical, Inc. (CeQur SA)
• Original Assignee: Seattle Medical Technologies, Inc. (CeQur SA)
• Inventors: Williamson, Cory, Hines, Craig
• Granted Patent: US 7,815,609 B2
• Time in Patent Office: Days
• US Class Current: 604/131
• CPC Class Codes: A61M 2209/045 for filling, e.g. for filling reservoirs
• CPC Class Codes: A61M 5/14216 Reciprocating piston type
• CPC Class Codes: A61M 5/14248 of the skin patch type

Abstract

An infusion system comprises a disposable wearable infusion device having a body arranged to be adhered to a patient'"'"'s skin and a reservoir for holding a liquid medicament to be infused into the patient. The infusion system further comprises a filler device arranged to be detachably received by the infusion device and to provide a positive pressure directly to the liquid medicament to transfer a volume of the liquid medicament to the infusion device reservoir.

Claims

1. An infusion system comprising:

a disposable wearable infusion device having a body arranged to be adhered to a patient'"'"'s skin and a reservoir for holding a liquid medicament to be infused into the patient; and

a filler device arranged to be detachably received by the infusion device and to provide a positive pressure directly to the liquid medicament to transfer a volume of the liquid medicament to the infusion device reservoir.

2. The system of claim 1 wherein the filler device is arranged to receive a vial of the liquid medicament.

3. The system of claim 2, wherein the filler device is arranged to transfer a set volume of the liquid medicament from the vial to the infusion device reservoir.

4. The system of claim 2, wherein in the filler further includes a chamber that receives the liquid medicament from the vial before the liquid medicament is transferred to the infusion device reservoir.

5. The system of claim 1, wherein the filler includes a piston and a piston chamber to meter a predetermined volume of the medicament to the reservoir.

6. The system of claim 1, wherein the filler includes a peristaltic pump.

7. The system of claim 1, wherein the filler includes a vent that vents the liquid medicament to atmospheric pressure.

8. A method comprising:

providing a disposable infusion device adapted to adhere to a patient'"'"'s skin and having a reservoir for holding a liquid medicament to be infused into the patient;

coupling a medicament filler to the infusion device reservoir; and

filling the infusion device reservoir with the liquid medicament by providing a positive pressure with the medicament filler directly to the medicament.

9. The method of claim 8, wherein the coupling step comprises detachably joining the medicament filler to the infusion device.

10. The method of claim 8, wherein the filling step further comprises providing the medicament filler with a vial of the liquid medicament.

11. The method of claim 8, comprising the further step of venting the liquid medicament to atmospheric pressure.

12. The method of claim 8, comprising the further step of transferring the liquid medicament to an intermediate chamber before transferring the liquid medicament to the infusion device reservoir.

13. The method of claim 8, wherein the filling step includes providing a piston and a piston chamber, filling the piston chamber with the liquid medicament, and causing the piston to act upon the liquid medicament within the piston chamber.

14. A filler device for filling a reservoir of a disposable wearable infusion device with a liquid medicament, comprising:

an outlet arranged to be detachably received by the infusion device; and

a pump that provides a positive pressure directly to the liquid medicament to transfer a volume of the liquid medicament to the infusion device reservoir.

15. The device of claim 14, further comprising a device body defining a cavity, and wherein the cavity is arranged to receive a vial of the liquid medicament.

16. The device of claim 15, wherein the filler device is arranged to transfer a set volume of the liquid medicament from the vial to the infusion device reservoir.

17. The device of claim 14, wherein the pump comprises a piston and a piston chamber and wherein the piston acts upon liquid medicament within the piston chamber to meter a predetermined volume of the liquid medicament to the reservoir.

18. The device of claim 14, wherein the pump is a peristaltic pump.

19. The device of claim 14, further comprising a vent that vents the liquid medicament to atmospheric pressure.

20. The device of claim 14, further comprising a chamber that receives the liquid medicament before the liquid medicament is transferred to the infusion device reservoir.