The disclosure relates to a catheter device (1) comprising a catheter (2) and a hypodermic introducer needle (3), wherein an extended portion (19) of the hypodermic introducer needle (3) is provided with ribs (23, 23a) that circumvent said extended portion, and a proximal end (5) of the catheter (2) is provided with a locking flange (25) adapted to engage with the ribs (23, 23a), such that each rib engaging with the locking flange (25) will provide a tactile indication to the user of the advancement of the catheter (2) in relation to the needle (3).