The suction pump will work similarly to a vacuum, albeit on a much smaller scale. The machine consists of a main component, which houses the actual pump, along with a hose, and a container to hold the fluid and other elements removed from the body. Many of the machines are relatively small and portable. Others might be on casters, so you can move them easily, and still others will be fixed and immovable. You have to bring the patient to them rather than the other way around.