INFUSION PUMP ASSEMBLY
1 Assignment
0 Petitions
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.
58 Citations
30 Claims
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1-12. -12. (canceled)
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13. A delivery device for delivering an infusion medium to a user, the device comprising:
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a disposable housing portion adapted to be secured to a user; a durable housing portion configured to be selectively engaged with and disengaged from the disposable housing portion to allow disposal of the disposable housing portion without disposing of the durable housing portion; a reservoir supported by the disposable housing portion, the reservoir having an interior for containing a fluidic medium and a plunger moveable within the interior of the reservoir the plunger having a threaded portion; a rotatable shaft having a longitudinal axis parallel to and displaced from the longitudinal axis of the reservoir, the rotatable shaft having a threaded portion engaged with the threaded portion of the plunger, wherein rotation of the rotatable shaft causes the rotatable shaft to move along the length of the threaded portion of the plunger to vary the interior volume of the reservoir; and a drive device supported by the durable housing portion in a position to operatively connect to the rotatable shaft, to selectively rotate the rotatable shaft, when the disposable and durable housing portions are engaged. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of making a delivery device for delivering an infusion medium to a user, the method comprising:
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providing a first housing portion adapted to be secured to a user; providing a second housing portion configured to be selectively engaged with and disengaged from the first housing portion to allow disposal of the first housing portion without disposing of the second housing portion; supporting a reservoir on the first housing portion, the reservoir having an interior for containing a fluidic medium; arranging a plunger within the interior of the reservoir and moveable relative to the reservoir along an axial direction of the reservoir, the plunger having a threaded channel; arranging a rotatable shaft along the axial direction of the reservoir, extending the rotatable shaft through the threaded channel of the plunger, and operatively engaging a threaded portion of the rotatable shaft with the threaded channel of the plunger, wherein rotation of the rotatable shaft relative to the plunger causes the plunger to move along the length of the threaded portion of the rotatable shaft to vary the interior volume of the reservoir; and supporting a drive device on the second housing portion in a position to operatively connect to the rotatable shaft, to selectively rotate the rotatable shaft, when the first and second housing portions are engaged. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification