Patent ID: 9005180
Filing Date: 2015-04-14
Classification: A61J,Y10T

Abstract:
1. A pressure regulating adaptor for coupling with a vial, the adaptor comprising: a housing portion configured to couple with the vial, the housing portion comprising at least a portion of a regulator channel configured to permit regulating fluid to pass therethrough and at least a portion of an extractor channel configured to permit medicinal fluid to pass therethrough; a regulating enclosure portion comprising an interior volume in fluid communication with the regulator channel, wherein the regulating enclosure portion is configured to move between a first orientation in which at least a portion of the regulating enclosure portion is at least partially unexpanded or folded and a second orientation in which at least a portion of the regulating enclosure portion is at least partially expanded or unfolded when medicinal fluid is withdrawn from the vial via the extractor channel, and wherein the regulating enclosure portion is positioned outside the vial, when the adaptor is coupled with the vial; an input port disposed between the regulator channel and ambient, the input port comprising a one-way valve configured to permit ambient air to flow into the regulator channel and to prevent fluid from flowing out of the regulator channel to ambient; and a filter configured to filter ambient air entering the regulator channel via the input port.