Device and method for treating a medical fluid and medical cassette

US10646631B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Götz Günther · Bad Homburg vor der Höhe, DE
• Jürgen Häcker · Neu-Anspach, DE
• Markus Kohler · Emmendingen, DE
• Martin Lauer · Sankt Wendel, DE
• Ralf Müller · Geringswalde, DE
• Hans-Peter Schneider · Stuttgart, DE
• Tobias Weber · Verl, DE
• Manfred Weis · Sankt Wendel, DE

Key dates

• Filing date: May 9, 2017
• Grant date: May 12, 2020
• Expiry date: Mar 2, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49826
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An apparatus for treating a medical fluid is provided which includes a treatment machine having a coupling surface, with a cassette made of a hard part having liquid-conducting passages which are covered by a flexible film being able to be coupled to the coupling surface of the treatment machine. A corresponding medical cassette is also provided. An air-free coupling of the flexible film of the cassette to the treatment machine is ensured in that air can be sucked out areally along a plane between the flexible film and the coupling surface during the coupling process and/or with a coupled cassette. A method for coupling the cassette and a method for checking the leaktightness of the cassette via the vacuum control of the air suction is also provided.