A functional medical package is disclosed having a disposable package and a sterile container removably received inside the disposable package. A subsystem is received in the sterile container and is configured to be at least partially inserted into a host. The sterile container has an insertion exit opening for the subsystem and a liner closes the insertion exit opening. The liner is attached to the disposable package and automatically peels off the insertion exit opening when the sterile container is removed from the disposable package. Also disclosed are a method of manufacturing the medical package and a method of using the medical package with an inserter.