Obturator, sheath and method for using same

An obturator comprising a hollow distal end portion, the distal end portion comprising:

• a single lumen;
• a distal end;
• an end hole at the distal end, for receipt of a guidewire extending through the single lumen;
• and
• a side hole located proximally to the distal end, the side hole being for receipt of the guidewire extending through the single lumen, from a position proximal to the side hole, and to direct the guidewire laterally from the obturator, the side hole further being located so that when the obturator is located in a first bodily lumen, in use, a second bodily lumen can be located by flowing contrast medium through the obturator to exit the side hole, the obturator further comprises a flexible slit extending between the end hole and side hole configured to flex around the guidewire to allow the guidewire to be received into the single lumen as the obturator is retracted.