Patent ID: 7383852

Claim:
A mechanical ventilation system comprising: a cap having an inlet and an outlet; a fluid collection vessel engageable with the cap; a rotatable closure interposed between the cap and the fluid collection vessel and including at least one aperture, the fluid collection vessel is operably linked to the closure such that movement of the fluid collection vessel from the cap causes the closure to be rotated; wherein the cap is formed with an internal partition in the form of a skirt that extends into abutment with the closure to define a chamber via which the inlet and outlet are in fluid communication, the closure forming a base of the chamber, such that when the fluid collection vessel is engaged with the cap the closure has a first orientation in which the at least one aperture is located within the periphery of the skirt in the base of the chamber and the fluid collection vessel is in communication with the chamber via the at least one aperture, and when the fluid collection vessel is removed from the cap the closure is rotated to a second orientation in which the at least one aperture is located externally of the periphery of the skirt and the base of the chamber; and conduits connected to the inlet and outlet.