Types of Catheters
The first catheter from the top is called a Foley catheter or retention or indwelling catheter (continuous). Foley catheters have an inflatable bulb at the end that can be filled with H2O (~5-10 ml) to retain the tip of the catheter within the bladder. A suprapubic catheter is basically an indwelling catheter that is placed directly into the bladder through the abdomen.
The bottom catheter is a intermittent or straight catheter, usually red rubber.