Patent ID: 8613725
Filing Date: 2013-12-24
Classification: A61M,B23P,Y10T

Abstract:
1. A reservoir having an axis and a plunger head moveable along the axis within the reservoir to transfer fluidic media, the reservoir comprising: a reservoir body portion having a wall defining an interior volume, the interior volume for containing the fluidic media, the reservoir having a first port in the reservoir body portion to be in fluid flow communication with the interior volume of the reservoir body portion, the first port for expelling fluidic media from the interior volume of the reservoir body portion as the plunger is moved within the reservoir; and a collecting portion having a wall defining a volume in fluid flow communication with the interior volume of the reservoir body portion, the volume of the collecting portion for collecting gas bubbles in the fluidic media as the fluidic media is expelled through the first port from the interior volume of the reservoir body portion, the reservoir having a second port in the collecting portion to be in fluid flow communication with the volume of the collecting portion, the second port for receiving fluidic media into the reservoir; the plunger head having a shape that is asymmetric about the axis of the reservoir and comprising a body portion and a protruding portion, the protruding portion of the plunger head extending toward the collecting portion of the reservoir; wherein the volume of the collecting portion has a size such that when the plunger head is fully advanced within the reservoir, the protruding portion extends into the volume of the collecting portion.