Patent attributes
A lyophilization nest and method of using the same is described herein. In various embodiments, the lyophilization nest includes a base and first and second covers and is configured to support one or more receptacles each supporting one or more substances within interior spaces of the lyophilization nest. The interior spaces may be in fluid communication with the exterior of the lyophilization nest through one or more vent holes extending through the first and second covers. Each of the one or more vent holes have a corresponding sealing element configured to selectively form an air-tight seal within the vent holes, such that a controlled environment may be maintained within the interior spaces when the ambient conditions surrounding the lyophilization nest are not lyophilization conditions. The one or more sealing elements may be operable while the lyophilization nest is positioned within a sealed lyophilizer by depressing the sealing elements into corresponding vent holes to form the air-tight seal.