Adaptor for releasably mounting a vaporizer on an anesthesia machine

An adaptor for use with an anesthesia machine having an interlock/exclusion system, the interlock/exclusion system being arranged to removably mount a first, second and third gas flow units thereon, each of the gas flow units being arranged to be opened to enable the anesthesia machine to provide a gas to a patient, one of said first, second and third gas flow units having a horizontally oriented pin arranged to move in a horizontally outward motion from that one gas flow unit when that one gas flow unit is opened, the interlock/exclusion system comprising vertically oriented pins associated with respective ones of the gas flow units, all of the vertically oriented pins being coupled to one another, whereupon when one of the gas flow units is opened the vertically oriented pin associated with it is moved downward and the vertically oriented pins of the other gas flow units are moved upward to preclude the opening of those other gas flow units, said adaptor being arranged to be mounted on the interlock/exclusion system and comprising means for coupling it to one of the vertically oriented pins of the interlock/exclusion system for releasably mounting the gas flow unit having the horizontally oriented pin on the anesthesia machine, the horizontally oriented pin being arranged to move in a horizontally outward motion when the gas flow unit is opened, said adaptor comprising an assembly of movable members connected between the horizontally oriented pin and an associated one of the vertically oriented pins to couple the horizontally outward motion of the horizontally oriented pin to the associated vertically oriented pin of the interlock/exclusion system to move the associated vertically oriented pin downward, whereupon the interlock/exclusion system operates to cause the other vertically oriented pins to extend upward and thereby prevent the opening of the other gas flow units mounted on the interlock/exclusion system.