Method for rinsing and/or for filling a blood treatment device and blood treatment device

US9950104B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Soeren Gronau · Gerolzhofen, DE
• Joachim Noack · Bad Neustadt an der Saale, DE
• Juergen Haecker · Neu-Anspach, DE
• Ralf Mueller · Germersheim, DE

Key dates

• Filing date: May 22, 2012
• Grant date: Apr 24, 2018
• Expiry date: May 30, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/14
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method of rinsing and/or filling a blood treatment device, in particular for priming a blood treatment device, is associated with a blood treatment device that includes a membrane filter, in particular a hollow fiber membrane filter, a first partial circuit, and a second partial circuit. The first and the second partial circuits are separated by the membrane filter in a semipermeable manner, with temporarily the first partial circuit being first filled with a fluid with a uniform and/or a pulsatile first volumetric flow rate, with the volumetric flow rate not exceeding a specified threshold value at which the fluid has not completely wetted and/or soaked the membrane. The second partial circuit is temporarily open towards the atmosphere, air is displaced from the first partial circuit into the second partial circuit via the membrane, and during filling no negative pressure is applied to the first partial circuit.