A connector for transfer of an implantable device from a loading tube to a delivery catheter, comprising: a first connecting portion (110) having a first distal end (120) configured to receive a delivery catheter (190); a second connecting portion (130) having a second proximal end (150) configured to receive a loading tube (180) extending towards the first distal end, the second connecting portion movably connected to the first connecting portion; and a biasing element (160) connecting the first and second connecting portions, having a relaxed configuration in which the first distal end and the second proximal end are spaced apart by a predetermined distance, and configured to bias the first distal end and second proximal end to the relaxed configuration when the first distal end and second proximal end are moved apart; such that when the loading tube is received, upon receiving the delivery catheter by the first connecting portion, the loading tube is biased to the delivery catheter to form a connection for the transfer of the implantable device.