B. Braun Melsungen Ag

Juergen Steger

Rolf Heitmeier

Matthias Schwalm

Berthold Wolfram

Dominik Niedenzu

Heiko Rosenkranz

A medical fluid pump, comprising a first, inner fluid system including a motor-driven suction/pressure unit and a first fluid pressure chamber which can be filled with fluid and emptied by the suction/pressure unit, and a second, outer fluid system including a second fluid pressure chamber which is coupled to the first pressure chamber in a pressure- and/or volume-dynamic manner via a movable separating wall and which is alternately coupled&#x2014;via a valve means of the second fluid system&#x2014;to a suction line and pressure line depending on the current working phase of the suction/pressure unit of the first fluid system is disclosed.

Pump for medical purposes

A pressure sensor is provided with two supporting bodies () with plane supporting surfaces () between which a hose () is compressed or flattened. For measuring the internal pressure of the hose (), pressure transmission means (or) is displaceable in a gap () that is arranged at a supporting body (or) adjacent to the compressed of flattened hose (). The pressure transmission means (or) presses against the plane surface of the flattened-hose () and is supported on a force sensor (). Thus, the deformation forces generated upon compressing the hose are eliminated for the measurement of pressure.

Growing community of inventors

Koerle, Germany

Juergen Steger