Keyed anesthetic vaporizer filling system

The present invention generally relates to a system for transferring a liquid anesthetic agent from an anesthetic bottle to an anesthetic vaporizer. More specifically, the present invention relates to an anesthetic vaporizer filling system that includes a unique valve arrangement and keyed engagement system that prevents the anesthetic agent from being released to atmosphere during filling and insures that only the desired type of anesthetic agent can be discharged into the anesthetic vaporizer. A system for facilitating the delivery of a liquid anesthetic agent from an anesthetic bottle to an anesthetic vaporizer. The system includes a bottle adapter, an anesthetic bottle and a filler arrangement positioned on the anesthetic vaporizer. The bottle adapter and filler arrangement each include a keyed configuration such that only the correct type of anesthetic agent can be emptied into the anesthetic vaporizer. The bottle adapter includes an adapter valve assembly that engages a filler valve assembly contained within the filler. The dimensions and arrangement of the adapter valve assembly and the filler valve assembly insure anesthetic agent is delivered to the anesthetic vaporizer only when the anesthetic agent can safely flow from the anesthetic bottle to the anesthetic vaporizer.