INFUSION PUMP ASSEMBLY
First Claim
1. 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, andwherein said reservoir moves said locking tab from a locked position to an unlocked position when said plunger rod is inserted through said clearance hole, andwherein 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.
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Accused Products
Abstract
An infusion pump assembly is disclosed. The infusion pump assembly includes a locking tab and a pump barrel inside a pump barrel housing, where the pump barrel accommodates a reservoir assembly. The reservoir assembly includes a reservoir and a plunger rod. The infusion pump assembly also includes a locking disc at a terminus of the pump barrel. The locking disc includes a clearance hole for the plunger rod. The locking disc also includes at least one locking tab notch in close proximity with the locking tab. The locking tab is in moveable engagement with the locking tab notch, and the reservoir moves the locking tab from a locked position to an unlocked position when the plunger rod is inserted through clearance hole. The locking disc rotates upon torque being applied to the reservoir assembly, the locking disc rotating from a non-loaded position to a loaded position with respect to the plunger rod and a drive screw.
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Citations
12 Claims
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1. An infusion pump assembly comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A reservoir assembly comprising:
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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. - View Dependent Claims (10, 11)
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12. A method of loading a reservoir assembly to a drive mechanism of an infusion pump assembly, the method comprising:
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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.
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Specification