A fluid delivery mechanism

摘要

A device for causing liquid contained in a container (23) to flow through a tube (28) that is in fluid communication with the container (23) is described. The device comprises a bladder (24) for compressing the container (23) thereby pressurizing the liquid in the tube (28) and causing the liquid to flow into a metering chamber defined in the tube (28) and compression means (73) for releasably compressing the metering chamber and thereby generating a flow of the liquid from the metering chamber.