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A catheter hub (1) has a proximal end (2) and a distal end (3). The proximal end (2) of the hub is provided with a leuer fitting (5) for removable connection to an accessory such as a Y-adapter. The hub (1) has an integral clip adjacent the distal end for temporarily retaining a looper hypotube (4).
The clip is defined by two diametrically opposed slots (10). An end entrance (11) of the slots (10) is arranged substantially perpendicular to a longitudinal axis of the hub for ease of insertion of the coiled hypotube (4). Each slot (10) has a retainer in the form of a return leg (15) in which the hypotube (4) is temporarily retained. The hub with the coiled hypotube can be retained in the sterile field ready for re-use by the clinician, if required.