Patent ID: 9089637
Filing Date: 2015-07-28
Classification: A61B,A61M,Y10T

Abstract:
1. A system for transferring fluidic media, the system comprising: a plunger head moveable in an axial direction within a reservoir having an interior volume for containing fluidic media, the plunger head comprising: at least one seal member positioned between the reservoir and the plunger head; wherein the at least one seal member is positioned between the first portion and the second portion of the plunger head; wherein the first portion of the plunger head has an outer diameter, the second portion of the plunger head has an outer diameter and the third portion of the plunger head between the first portion and the second portion has an outer diameter that is reduced relative to the outer diameters of the first portion and the second portion of the plunger head, and wherein the at least one seal member comprises a seal located around the third portion of the plunger head; and wherein the first portion comprises at least one protrusion arranged along an outer surface defined by the outer diameter of the first portion, the at least one protrusion is configured for at least one of stabilizing the plunger head and controlling the compression of the at least one seal member.