ANESTHETIC VAPORIZER FILLING SYSTEM

摘要

A system is provided for the delivery of a liquid anesthetic agent to an anaesthetic vaporizer (20). The system includes a supply container (24) having a spout (40) defining an outlet through which the agent can be discharged. A reservoir is provided in the vaporizer (20) for holding the agent, and a receiving station (22) is provided on the vaporizer (20) for receiving the container spout (40). The agent flows from the container (24) through the spout (40) by gravity into the reservoir. The container spout (40) is located at the station (22) to define the maximum liquid level of the agent in the vaporizer (20) when gas flow into the container (24) is blocked by the rising level of the liquid agent. In one embodiment, a frangible seal (50) is provided in the container (24), an outlet valve (96) is provided in the container (24), and an inlet valve (132) is provided in the receiving station (22). The valves (96, 132) open automatically as the container (24) is inserted into the receiving station (22) of the vaporizer (20). Also the container spout (40) is preferably movable relative to a collar (36) so as to automatically effect rupture of the frangible membrane (50) as the container (24) is inserted into the receiving station (22) of the vaporizer (20).