Patent ID: 9446188
Filing Date: 2016-09-20
CPC Classification: A61M,Y10T

Claim Text:
1. An infusion pump device for delivering infusible fluid to a user, the device comprising: a reusable pump portion comprising a motor assembly; a disposable portion in removable relation to the reusable pump portion, the disposable portion comprising a plunger rod, the plunger rod connected to the plunger and extending away from the plunger to a distal end, the plunger rod having a threaded portion; and processing logic for executing one or more processes in the reusable pump portion, wherein when the disposable portion is attached to the reusable pump portion the plunger rod is engaged with the motor assembly, and wherein the plunger rod is displaceable by the motor assembly, and wherein the processing logic configured to monitor a displacement of the plunger rod to determine if the plunger rod was displaced an expected displacement in response to displacement by the motor assembly; and wherein if the plunger rod was not displaced the expected displacement, initiating an alarm sequence on the infusion pump device.