US 5,381,836 A · Fluid delivery system

Abstract

A system for delivery of volatile liquid drugs as supplied to a patient by an anaesthetic vaporizer comprises a supply container (2) and a vaporizer (32) which includes a sump. Each of the supply container and the vaporizer is provided with a valve assembly (6, 34) which, when closed, prevent passage of fluid from the supply container into the sump. The supply container and the sump are connected to one another by means of a bayonet connection, which is made when indexing elements on the containers correspond. The valve assemblies in the containers are opened when the containers are connected to one another by means of an insert (40) located within an inlet conduit (10) linking the two containers. The inlet conduit (10) is rotatable between lowered and raised positions, to open a valve (37) by which flow of fluid into and out of a reservoir for fluid in the sump can be controlled.

Claims9

Dependent claims

A delivery system for delivery of an anaesthetic agent to an anaesthetic vaporiser, comprising an anaesthetic vaporiser which comprises a sump which has a sump valve for controlling the flow of fluid into and out of said sump, an inlet conduit through which fluid supplied from a supply container can enter said sump, means for engaging the supply container, provided at or towards the end of the inlet conduit remote from said sump, said conduit being rotatably moveable to operate said sump valve between a first position in which said sump valve is closed, and a second position in which said sump valve is open, and means for guiding the supply container engaging means during the rotational movement of said inlet conduit.

Dependencies are inferred from the claim text.

Fluid delivery system

Life of this patent

Fluid delivery system

Life of this patent

Abstract

Claims9