A fuel dispensing nozzle system including a spout configured to dispense fuel flowing therethrough, and a flow shaper positioned in the spout such that fuel flowing through the spout passes through the flow shaper. The device furthermore comprises means for regulating the extent to which liquid is supplied to the container via the inlet in dependence on the amount of liquid that is present in the container. Furthermore, they include features that make them suitable for performing a minimally invasive knee surgery in which a smaller than normal incision is made and oriented. The receiver includes a restrictive lower opening that allows for uploading the shank upper portion and compressed retainer ring into the receiver cavity, but prevents passage of the retainer ring out of the receiver once the ring inner surface engages the conical surface of the shank upper portion.