Patent ID: 7160273

Claim:
A suction pump for medical applications, specifically a pump for sucking off secretions, with a collecting reservoir for material to be sucked off, a valve block for an alternating connection of a pump chamber through corresponding valves for a production of a vacuum in latter or a blowing off circuit respectively, depending from a direction of movement of a membrane pump plunger, and a driving unit of the membrane plunger, characterized in that the collecting reservoir, valve block and driving unit are housed separately and are releasably coupled to each other for operation of the pump, whereby the valve block comes to lie directly between the collecting reservoir and driving unit and the membrane pump plunger located in the driving unit cooperates at a front end of the plunger with a membrane which is arranged sealed against an inside of the driving unit, and exposed towards the environment, and the pump chamber is located between valve block and driving unit and is defined by a wall of the valve block provided with the valves and a wall of the driving unit or membrane, respectively.