What is a catheter bulb?

A catheter bulb, often referred to as a drainage bulb or suction bulb, is a device used in medical settings to collect fluid from a patient's body, typically in conjunction with a catheter. It is typically a flexible, collapsible container that can create negative pressure to assist in the removal of fluids, such as urine or wound drainage. The bulb can be manually compressed to facilitate drainage and is designed for easy monitoring of fluid output.