WEARABLE INFUSION DEVICE AND SYSTEM

• US 20110112484A1
• Filed: 11/11/2009
• Published: 05/12/2011
• Est. Priority Date: 11/11/2009
• Status: Active Grant

• Current Assignee: Calibra Medical, Inc. (CeQur SA)
• Original Assignee: Calibra Medical, Inc. (CeQur SA)
• Inventors: ADAMS, John M., MARSOT, Travis, CARTER, Brett, CROSS, Brett, McKENZIE, John
• Granted Patent: US 8,449,504 B2
• Time in Patent Office: Days
• US Class Current: 604/180
• CPC Class Codes: A61M 2005/14252 with needle insertion means
• CPC Class Codes: A61M 2005/1585 Needle inserters
• CPC Class Codes: A61M 2005/1588 having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/14248 of the skin patch type
• CPC Class Codes: A61M 5/158 Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
• CPC Class Codes: A61M 5/162 Needle sets, i.e. connections by puncture between reservoir and tube ; Connections between reservoir and tube in jet-action syringes A61M5/30; connectors for tubes having sealed ends and a needle for piercing them A61M39/14
• CPC Class Codes: A61M 5/1626 Needle protectors therefor in combination with syringes A61M5/3202; protectors for sharps A61B50/3001
• 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

Abstract

Disclosed is a drug infusion system comprising a drug infusion device having a reservoir, a window for viewing the contents of the reservoir, a cannula arranged to be deployed beneath the skin of a patient, and an actuator configured to be manually actuated to drive a medicament from the reservoir to the cannula. The system also has a cannula cover and a needle handle that holds a needle for insertion into the patient. The cannula cover and needle handle are detachably attached to the drug infusion device, and each is attachable to the other. The device further comprises a septum and a septum pincher to seal the device. The device also comprises a pumping mechanism, part of which are a last-dose lock-out mechanism and an occlusion detection mechanism, both of which operate on the same actuator.

Claims

1. A drug infusion system comprising:

a skin-adherable drug infusion device comprising a reservoir, a cannula arranged to be deployed beneath the skin of a patient, and an actuator configured to be manually actuated to drive a medicament from the reservoir to the cannula;

a cannula cover; and

a needle handle, wherein the needle handle holds a needle for insertion into the patient.

2. The system of claim 1, wherein the cannula cover is configured to be detachably attached to the drug infusion device.

3. The system of claim 1, wherein the needle handle is configured to be detachably attached to the drug infusion device.

4. The system of claim 1, wherein the needle handle is configured to be coupled to the cannula cover.

5. The system of claim 4, wherein the cannula cover includes a cavity for receiving the needle when the needle handle is coupled to the cannula cover.

6. The system of claim 1 wherein the device includes an adhesive layer for adhering to the skin of a user and a removable cover overlying the adhesive layer and wherein the cannula cover is attached to the removable cover on the adhesive layer.

7. The system of claim 1, wherein the device comprises a last-dose lock-out mechanism.

8. The system of claim 1, wherein the device comprises an occlusion detection mechanism.

9. The system of claim 8, wherein the device comprises a last-dose lock-out mechanism, and wherein both the last-dose lock-out mechanism and the occlusion detection mechanism are configured to operate on the same actuator.

10. The system of claim 1, wherein the system further comprises an inserter for inserting the needle into the skin of a patient.

11. The system of claim 1, wherein the device includes a fill port through which the reservoir receives medicament, and wherein the cannula cover includes a guide port that guides a medicament supply instrument into alignment with the fill port.

12. The system of claim 11, wherein the guide port includes a stop structure that limits penetration of the medicament supply instrument within the fill port.

13. The system of claim 1, wherein the cannula cover includes a priming window through which priming of the device may be observed.

14. The system of claim 1, wherein the device includes a window for viewing the contents of the reservoir.

15. A drug infusion device comprising:

a skin-adherable surface;

a reservoir for holding a medicament;

a cannula arranged to be deployed beneath the skin of a patient that delivers the medicament to the patient;

an actuator to drive a medicament from the reservoir to the cannula;

an insertion needle port that receives an insertion needle and which fluidly communicates with the cannula;

a septum configured to seal the insertion needle port; and

a septum pincher configured to press against the septum to assist the septum in sealing the insertion needle port.

16. The device of claim 15, further comprising a last-dose lock-out mechanism.

17. The device of claim 15, further comprising an occlusion detection mechanism.

18. The device of claim 15, further comprising a last-dose lock-out mechanism, and wherein both the last-dose lock-out mechanism and the occlusion detection mechanism are configured to operate on the same actuator.

19. A drug infusion system comprising:

a skin-adherable drug infusion device comprising a reservoir, a cannula arranged to be deployed beneath the skin of a patient, and an actuator configured to be manually actuated to drive a medicament from the reservoir to the cannula; and

a cannula cover arranged to be releasably joined with the device, the cannula cover including a channel for receiving the cannula of the device when releasably joined with the device to protect the cannula and being arranged to capture medicament during priming of the device.

20. The system of claim 19, wherein the channel includes a plurality of inwardly radially projecting fins for capturing the medicament during priming of the device.

21. The system of claim 20, wherein the fins are longitudinally extending within the channel.

22. The system of claim 19, wherein the cannula cover includes a priming window through which priming of the device may be observed within the channel.

23. A drug infusion device comprising:

a skin-adherable surface;

a reservoir for holding a medicament;

a cannula arranged to be deployed beneath the skin of a patient that delivers the medicament to the patient; and

an actuator to drive a medicament from the reservoir to the cannula,

wherein, the cannula includes a tip end output port and at least one side output port.

24. The device of claim 23, wherein the cannula includes a pair of side output ports.

25. The device of claim 24, wherein the side output ports are directly opposite each other.