Pressure-regulating vial adaptors
AssigneeICU Medical, Inc.
InventorThomas F. Fangrow
Life of this patent
Estimating the term…
Abstract
In certain embodiments, a vial adaptor comprises a housing configured to couple the adaptor with a vial, an access channel, a regulator channel, and a regulator assembly. The access channel is configured to facilitate withdrawal of fluid from the vial when the adaptor is coupled to the vial. The regulator channel is configured to facilitate a flow of a regulating fluid from the regulator assembly to compensate for changes in volume of a medical fluid in the vial. The regulator assembly can include a valve configured to transition between a closed configuration and an opened configuration.
Claims19
A vial adaptor configured to couple with a vial comprising:
- a piercing member;
- a regulator channel at least partially extending through the piercing member;
- and
- a filter chamber in fluid communication with the regulator channel, the filter chamber comprising:
- a base having a first plurality of protrusions;
- a cover having an aperture, the cover configured to couple with the base;
- and
- a filter, wherein the filter is housed between the base and the cover, and the filter is configured to contact the first plurality of protrusions;
- wherein the aperture is configured to allow fluids to exit the vial adaptor.
A vial adaptor configured to couple with a vial comprising:
- a piercing member capable of piercing a septum of a sealed vial when the piercing member is urged against the septum;
- a regulator channel extending through at least a portion of the piercing member to a distal regulator opening in the piercing member;
- and
- a filter housing assembly in fluid communication with the regulator channel, the filter housing assembly comprising:
- a first housing portion having a first plurality of protrusions;
- a second housing portion configured to couple with the first housing portion;
- and
- a filter, wherein the filter is housed between the first housing portion and the second housing portion, and the filter is configured to contact the first plurality of protrusions;
- wherein the piercing member and regulator channel form at least part of a body portion, wherein the filter housing assembly is configured to couple with the body portion, wherein the vial adaptor further comprises an inflatable member coupled to the filter housing assembly;
- and
- wherein the filter housing assembly is sealed and wherein regulating fluid is configured to pass through the filter housing assembly in response to a volume of fluid being withdrawn from or added to a vial.
Dependencies are inferred from the claim text.