Patent ID: 7784504

Claim:
An adapter used to connect an anesthetic agent container to a vaporizer fluid port, the adapter comprising: a base connectable to an anesthetic agent container; a spout that extends from the base and defines at least one flow path therethrough, the spout having a longitudinal axis and a lip; a valve assembly disposed within the at least one flow path; a radially expandable seal disposed about the spout, the seal having a first end, a second end, and an intermediate region between the first and second ends that expands radially outward relative to the longitudinal axis; a collar that is disposed about the spout and that moves axially relative to the longitudinal axis, the radially expandable seal disposed between the lip of the spout and the collar; and a cam that rotates about an axis perpendicular to the longitudinal axis and having a surface that abuts the collar to move the collar axially relative to the longitudinal axis.