Fluid transfer devices

A fluid transfer device comprising:

• a fluid chamber in communication with a male connector tip, the male connector tip being tapered in a forwards direction along an axis to form a friction fit when inserted in a corresponding female hub,
• a lever member pivotally mounted to the device and comprising a front surface, and one or more side surfaces which extend away from the front surface in a direction opposite to the forwards direction, and wherein the one or more side surfaces comprise an actuation surface moveable towards a facing surface of the fluid chamber and a pair of supporting surfaces that are opposed to one another on either side of the actuation surface and extend in a direction substantially parallel to the axis of the male connector tip, and wherein the actuation surface and the supporting surfaces together form a shroud extending back from the front surface towards the fluid chamber and thereby at least partially surrounding the fluid chamber,
• wherein the lever member is pivotally mounted such that movement of the actuation surface towards the facing surface of the fluid chamber moves the front surface along the male connector tip in the forwards direction from a first position proximal to the fluid chamber that is substantially transverse to the axis of the male connector tip to a second position spaced from the first position towards a distal end of the male connector tip in the forwards direction, and
• further comprising a locking arrangement for locking the lever member so that the front surface of the lever member is in the second position and the actuation surface of the lever member is pivoted towards the fluid chamber, wherein the locking arrangement is arranged to be overcome when the front surface is moved to the first position, by connecting a female hub to the male connector tip, so that the actuation surface pivots away from the fluid chamber.