Patent ID: 11857499
Assignee: ICU MEDICAL, INC.
Field: Medical technology (Instruments)
Classification: CPC A  Y | IPC A

Claim 16:
17. A method for manufacturing a device for accessing medicinal fluid from a container, the method comprising:
attaching a regulator assembly to a vial adaptor, the vial adaptor comprising:
a piercing member configured to be inserted into a container of medicinal substance, wherein the piercing member defines an axial centerline, wherein the axial centerline is embedded in a plane that divides the device into a first side and a second side;
an access channel extending between a distal access aperture disposed on the piercing member and a medical connector interface, wherein the access channel is configured to permit medicinal fluid to be removed from the container; and
a regulator channel configured to aid in regulating pressure in the container in response to fluid being added to and removed from the container;

wherein attaching the regulator assembly to the vial adaptor places the regulator assembly in fluid communication with the regulator channel; and
wherein the regulator assembly comprises:
a reservoir configured to receive, in response to fluid being added to the container, gas displaced from the container via the regulator channel, wherein a first check valve is disposed in the regulator channel between the container and the reservoir;
a second check valve configured to permit one-way fluid communication from ambient to the regulator channel;
a first filter configured to prevent contaminants from entering the container, wherein the first filter is disposed adjacent to a cover comprising a plurality of annular protrusions, wherein the plurality of annual protrusions are configured to inhibit the first filter from becoming concave shaped as regulating fluid passes through the first filter; and
a second filter spaced apart from the first filter, wherein the first filter and the second filter are on the first side of the container access device.