Intravenous catheter assembly

An intravenous catheter assembly comprising:

• a catheter tube;
• a catheter hub having a distal end and a proximal end and defining an axial direction extending between from the proximal end to the distal end, wherein the distal end is joined to the catheter tube and the proximal end defines a housing having an inner space;
• a needle extending through the catheter hub and the catheter tube and defining an axial direction, wherein the needle has opposite proximal and distal ends, the distal end forming a needle tip;
• a needle hub attached to the proximal end of the needle;
• a needle guard slidably arranged on the needle, wherein the needle guard is movably retained in the housing of the catheter hub;
• a valve provided in the inner space in the housing of the catheter hub to prevent foreign contamination from entering the housing of the catheter hub;
• and
• a disc that is arranged in the inner space in the housing of the catheter hub proximal or distal to the valve or that is joint or linked to the valve, wherein the disc defines a thickness extending along the axial direction of the catheter hub and defines an aperture extending along the thickness from a center of the disc to an outer perimeter of the disc such that the disc has a profile of a C-shape along the axial direction of the catheter hub.