Patent ID: 9089641
Filing Date: 2015-07-28
Classification: A61J,A61M

Abstract:
1. A system for automated pressure equalization, the system comprising: a transfer guard, the transfer guard comprising: a first needle having a fluid path for transferring fluidic media from an interior volume of a vial to an interior volume of a reservoir; a second needle having a fluid path for communicating between atmosphere and the interior volume of the vial; and a bias member connected between an end of the reservoir and a plunger head positioned in the reservoir, the bias member for providing a force behind the plunger head as the plunger head is moved within the reservoir to transfer fluidic media from the interior volume of the vial to the interior volume of the reservoir; the bias member and the transfer guard configured to equalize pressure relative to atmosphere in the interior volume of the vial in a case where the second needle communicates between atmosphere and the interior volume of the vial and the plunger head is moved within the reservoir to transfer fluidic media from the interior volume of the vial to the interior volume of the reservoir.