Infusion Pump Assembly

• US 20110208123A1
• Filed: 10/09/2009
• Published: 08/25/2011
• Est. Priority Date: 10/10/2008
• Status: Active Grant

• Current Assignee: Eugly Diabetes Care LLC
• Original Assignee: Deka Products Limited Partnership
• Inventors: Foo, Bright C.K., Grant, Kevin L., Gray, Larry B., Fichera, Stephen L., Tracey, Brian D.
• Granted Patent: US 9,833,569 B2
• Time in Patent Office: Days
• US Class Current: 604/151
• CPC Class Codes: A61M 2005/14268 with a reusable and a disposable component
• CPC Class Codes: A61M 2005/14573 with a replaceable reservoir for quick connection/disconnection with a driving system
• CPC Class Codes: A61M 2005/16863 Occlusion detection
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2205/332 Force measuring means
• CPC Class Codes: A61M 2205/8206 battery-operated
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 5/14244 adapted to be carried by the patient, e.g. portable on the body
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: A61M 5/3129 Syringe barrels A61M5/3205 and A61M5/50 take precedence
• CPC Class Codes: A61M 5/31515 Connection of piston with piston rod
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A removable power supply cover assembly (116) for an infusion pump is disclosed. The assembly includes a housing body configured to removably attach to an infusion pump, a conductor assembly (1020) attached to the housing body, a power supply contact assembly, and a spring (1002) attached to the power supply contact assembly and the conductor assembly. An electrical coupling between a power supply to the conductor assembly is formed through the spring.

Claims

1. A removable power supply cover assembly for an infusion pump comprising:

a housing body configured to removably attach to an infusion pump;

a conductor assembly attached to the housing body;

a power supply contact assembly; and

a spring attached to the power supply contact assembly and the conductor assembly,

wherein an electrical coupling between a power supply to the conductor assembly is formed through the spring.

2. The infusion pump assembly of claim 1 wherein the removable power supply assembly comprising a battery.

3. The removable power supply cover assembly of claim 1 wherein the housing body further comprising:

a sealing assembly for releasable engaging at least a portion of the enclosure assembly and forming an essentially water-tight seal between the removable cover assembly and the enclosure assembly.

4. The removable power supply cover assembly of claim 3 wherein the sealing assembly comprising an o-ring assembly.

5. The removable power supply cover assembly of claim 1 wherein the housing body is configured to allow access to a power supply cavity and effectuate removable insertion of a removable power supply assembly into the power supply cavity.

6. An infusion pump assembly comprising:

an enclosure assembly;

a pump assembly positioned at least partially within the enclosure assembly and configured to effectuate the dispensing of the infusible fluid contained in a reservoir assembly; and

a removable cover assembly configured to releasably engage the enclosure assembly, the removable cover assembly comprising;

a housing body;

a conductor assembly attached to the housing body;

a power supply contact assembly; and

a spring attached to the power supply contact assembly and the conductor assembly, wherein an electrical coupling between a power supply to the conductor assembly is formed through the spring.

7. The infusion pump assembly of claim 6 further comprising wherein the reservoir assembly positioned at least partially within the enclosure assembly and configured to contain an infusible fluid.

8. The infusion pump assembly of claim 6 further comprising processing logic positioned at least partially within the enclosure assembly and configured to control the pump assembly.

9. The infusion pump assembly of claim 6 wherein the removable power supply assembly comprising a battery.

10. The infusion pump assembly of claim 6 wherein the removable cover assembly comprising:

a sealing assembly for releasable engaging at least a portion of the enclosure assembly and forming an essentially water-tight seal between the removable cover assembly and the enclosure assembly.

11. The infusion pump assembly of claim 10 wherein the sealing assembly comprising an o-ring assembly.

12. The infusion pump assembly of claim 6 wherein the removable cover assembly is configured to allow access to the power supply cavity and effectuate removable insertion of the removable power supply assembly into the power supply cavity.

13. A medical device assembly comprising:

an enclosure assembly; and

a removable cover assembly configured to releasably engage the enclosure assembly;

wherein a combination of the removable cover assembly and at least a portion of the enclosure assembly define a power supply cavity configured to prevent a removable power supply assembly from being reverse-polarity electrically coupled to the processing logic.

14. The medical device assembly of claim 13 wherein the removable cover assembly is configured to allow access to the power supply cavity and effectuate removable insertion of the removable power supply assembly into the power supply cavity.

15. The medical device assembly of claim 13 wherein the removable power supply assembly comprising a battery.

16. The medical device assembly of claim 13 wherein the removable cover assembly comprising:

a sealing assembly for releasable engaging at least a portion of the enclosure assembly and forming an essentially water-tight seal between the removable cover assembly and the enclosure assembly.

17. The medical device assembly of claim 16 wherein the sealing assembly comprising an o-ring assembly.

18. The medical device assembly of claim 13 wherein the removable cover assembly comprising:

a conductor assembly configured to electrically couple the removable cover assembly with an interior wall of the power supply cavity.

19. The medical device assembly of claim 13 wherein:

the removable cover assembly includes a first twist lock assembly; and

the enclosure assembly includes a second twist lock assembly configured to releasably engage the first twist lock assembly and effectuate the releasable engagement of the removable cover assembly and the enclosure assembly.

20. The medical device assembly of claim 13 further comprising:

a reservoir assembly positioned at least partially within the enclosure assembly and configured to contain an infusible fluid;

a pump assembly positioned at least partially within the enclosure assembly and configured to effectuate the dispensing of the infusible fluid contained within the reservoir assembly; and

processing logic positioned at least partially within the enclosure assembly and configured to control the pump assembly.

21. An infusion pump assembly comprising:

a locking tab;

a pump barrel inside a pump barrel housing, said pump barrel accommodates a reservoir assembly comprising a reservoir and a plunger rod; and

a locking disc at a terminus of said pump barrel, said locking disc having a clearance hole for said plunger rod and at least one locking tab notch, said locking disc being in close proximity with said locking tab,

wherein said locking tab is in moveable engagement with said locking tab notch, and

wherein said reservoir moves said locking tab from a locked position to an unlocked position when said plunger rod is inserted through said clearance hole, and

wherein said locking disc rotates upon torque being applied to said reservoir assembly, said locking disc rotating from a non-loaded position to a loaded position with respect to said plunger rod and a drive screw.

22. The infusion pump of claim 21 wherein said locking disc further comprising a second locking tab notch, wherein said second locking tab notch is engaged with said locking tab when said locking disc is in said loaded position.

23. The infusion pump of claim 21 wherein said locking disc further comprising a plunger rod support, said plunger rod support in close relation with said plunger rod when said plunger rod is inserted through said clearance hole.

24. The infusion pump of claim 21 wherein said locking disc further comprising at least two reservoir tab openings for mating with at least two reservoir alignment tabs on said reservoir.

25. The infusion pump of claim 24 wherein said reservoir assembly further comprising a locking hub, said locking hub fluidly connected to said reservoir.

26. The infusion pump of claim 25 wherein said locking hub further comprising at least two locking hub alignment tabs, said locking hub alignment tabs aligning with said reservoir alignment tabs when said locking hub is fluidly connected to said reservoir.

27. The infusion pump of claim 26 further comprising a hub and battery end cap, said end cap having an opening to said pump barrel, said pump barrel opening being complementary to said locking hub alignment tabs wherein the loading of said reservoir assembly provides alignment of said reservoir alignment tabs with said reservoir tab openings and said plunger rod with said clearance hole.

28. The infusion pump of claim 27, said hub and battery end cap further comprising a first alignment feature, said first alignment feature complementary to a second alignment feature on said reservoir, wherein when said first and second alignment features are aligned, said locking hub alignment tabs are aligned with said hub and battery cap opening.

29. A reservoir assembly comprising:

a reservoir, said reservoir having an interior volume and terminating with a male feature on a first end;

a plunger rod, said plunger rod comprising a threaded portion and a notched portion; and

a reservoir bottom, said reservoir bottom having a plunger rod opening, and at least two reservoir alignment tabs, wherein said plunger rod extends through said plunger rod opening.

30. The reservoir assembly of claim 29 further comprising an alignment feature on said reservoir, said alignment feature for aligning the reservoir assembly with an infusion pump assembly for loading said reservoir assembly into said infusion pump assembly.

31. The reservoir assembly of claim 29 further comprising a removable filling aid, said filling aid comprising a threaded portion and a handle portion, wherein said threaded portion threads to said threaded portion of said plunger rod.

32. A method of loading a reservoir assembly to a drive mechanism of an infusion pump assembly, the method comprising:

aligning locking tab alignment features of a reservoir and locking tab assembly with an alignment feature on a hub and battery end cap of said infusion pump assembly;

applying pressure to said locking tab of said reservoir and locking tab assembly; and

rotating said locking tab until said locking tab is flush with said infusion pump assembly,

wherein said rotating said locking tab loads said reservoir and locking hub assembly onto the drive mechanism of said infusion pump assembly.