A system 100 for delivery of an anchor 120, comprises a driver 110 which co-operates with a hollow anchor 120 so as to allow presentation of the driver 110 through the anchor 120. A sharpened tip 130 of the driver extends through the anchor and provides a piercing leading surface that extends beyond the body of the anchor and, which on delivery of the anchor to the abdominal cavity, can be withdrawn from the anchor leaving the anchor in situ. The anchor is spring biased 160 towards the driver needle end portion 130 so that when there is no force acting on the assembly, (eg. it has not yet been pushed into the abdomen or has just been pushed through the wall of the abdomen) the anchor shields the sharpened tip 130 of the driver.