A stopcock medical connector device, comprising: a housing having a proximal opening, a distal end, and an inner lumen extending therebetween; an upstream port coupled to the housing and having a hollow interior in fluid communication with the inner lumen; a downstream port coupled to the housing and having a hollow interior in fluid communication with the inner lumen; a middle port coupled to the housing and having a hollow interior in fluid communication with the inner lumen; a tap rotatably seated in the inner lumen of the housing and comprising a shaft having an outer surface and further comprising a fluid channel formed on the outer surface of the shaft, the fluid channel providing a fluid pathway between the outer surface of the shaft and an inner surface of the housing, wherein the fluid channel permits fluid to simultaneous contact and freely flow through the hollow interior of the downstream port, the hollow interior of the middle port, and the hollow interior of the upstream port when the tap is rotated to an open position, and the outer surface of tap preventing fluid communication between the downstream and upstream ports (50, 40) when the tap is rotated to a closed position, wherein the closed position results in the fluid channel being in fluid communication with only one of the downstream port and the upstream port, and the open position results in the fluid channel being in fluid communication with the upstream port, the downstream port, and the middle port; wherein the fluid channel comprises an antimicrobial coating which is contacted by fluid as fluid passes through fluid channel; characterised in that the shaft comprises an antimicrobial groove that is positioned opposite to fluid channel, wherein the antimicrobial groove is positioned on the outer surface of shaft to align with one or more ports (40, 50, 80) that are not in alignment or fluid communication with fluid channel, wherein the antimicrobial groove further comprises an antimicrobial coating, and wherein the fluids within the respective ports (40, 50, 80) that are not in alignment or fluid communication with fluid channel are exposed to the antimicrobial coating in antimicrobial groove. a housing having a proximal opening, a distal end, and an inner lumen extending therebetween; an upstream port coupled to the housing and having a hollow interior in fluid communication with the inner lumen; a downstream port coupled to the housing and having a hollow interior in fluid communication with the inner lumen; a middle port coupled to the housing and having a hollow interior in fluid communication with the inner lumen; a tap rotatably seated in the inner lumen of the housing and comprising a shaft having an outer surface and further comprising a fluid channel formed on the outer surface of the shaft, the fluid channel providing a fluid pathway between the outer surface of the shaft and an inner surface of the housing, wherein the fluid channel permits fluid to simultaneous contact and freely flow through the hollow interior of the downstream port, the hollow interior of the middle port, and the hollow interior of the upstream port when the tap is rotated to an open position, and the outer surface of tap preventing fluid communication between the downstream and upstream ports (50, 40) when the tap is rotated to a closed position, wherein the closed position results in the fluid channel being in fluid communication with only one of the downstream port and the upstream port, and the open position results in the fluid channel being in fluid communication with the upstream port, the downstream port, and the middle port; wherein the fluid channel comprises an antimicrobial coating which is contacted by fluid as fluid passes through fluid channel; characterised in that the shaft comprises an antimicrobial groove that is positioned opposite to fluid channel, wherein the antimicrobial groove is positioned on the outer surface of shaft to align with one or more ports (40, 50, 80) that are not in alignment or fluid communication with fluid channel, wherein the antimicrobial groove further comprises an antimicrobial coating, and wherein the fluids within the respective ports (40, 50, 80) that are not in alignment or fluid communication with fluid channel are exposed to the antimicrobial coating in antimicrobial groove.