Patent ID: 9005179
Filing Date: 2015-04-14
Classification: A61J,Y10T

Abstract:
1. A pressure-regulating apparatus for withdrawing a medicinal fluid from a vial containing the fluid, the pressure-regulating apparatus comprising: a casing member including a medical connector interface configured to couple with a medical instrument; a connector configured to couple the casing member with the vial; at least one piercing member having a distal regulator aperture, the at least one piercing member configured to pierce a septum and thereby be placed in fluid communication with an interior of the vial when the apparatus is coupled with the vial; a reservoir with a volume configured to increase and decrease, the reservoir having an interior that includes a sterilized gas that is maintained sterile by isolating the sterilized gas from a region outside the reservoir until the pressure-regulating apparatus is coupled to a vial; a proximal regulator aperture connected to the reservoir; a regulator channel configured to permit at least some of the sterilized gas to flow from the reservoir through the proximal regulator aperture and the distal regulator aperture to the vial when the apparatus is coupled with the vial; and an extractor channel configured to permit withdrawal of at least some of the fluid from the vial via the distal extractor aperture when the apparatus is coupled with the vial.