Catheter holding device

A catheter and catheter holding assembly comprising:

• longitudinally-extending walls defining an open-sided body having a main passage therethrough, at least a portion of said main passage being aligned with openings in forward and rear ends of said body, the portion of said walls adjacent openings in the forward end of the body being adapted for receipt within a blood vessel or cavity, a second portion of said walls having a side opening therethrough allowing communication with said main passage, and the portion of said walls adjacent the opening in the rear end of the body being adapted for connection to an intravenous system;
• a side tube extending from said body having one end encompassing said side opening and the other end being open;
• resilient material received within the side tube, said resilient material having a passage therethrough, said a catheter being removably passed therethrough into the main passage for projection from the forward end thereof with clearance being left between at least one of the walls of the main passage and the catheter so that fluid communication paths through the catheter and through the main passage external of the catheter can be simultaneously established;
• and means for compressing the resilient material in the side tube to reduce the cross-section of the passage through the resilient material for sealingly gripping said catheter passing therethrough.