Method and device for monitoring the introduction of substitution fluids upstream of downstream of a dialyzer of filter

US8852135B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Josef Beden · Mainz, DE
• Itka Bado · Bad Homburg vor der Höhe, DE
• Georg Verch · Wiesbaden, DE

Key dates

• Filing date: Oct 8, 2009
• Grant date: Oct 7, 2014
• Expiry date: Feb 9, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/3386
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method is provided for monitoring the introduction of substitution fluids for an extra-corporeal blood processing device with an extra-corporeal blood circuit, comprising an arterial blood line, running from an arterial patient connection to a first chamber of a dialyzer or filter divided into said first chamber and a second chamber by a membrane and a venous blood line, running from the first chamber of the dialyzer or filter to a venous patient connection. A device is provided for monitoring the introduction of substitution fluids for an extra-corporeal blood processing unit with an extra-corporeal blood circuit and an extra-corporeal blood processing device with a device for monitoring the introduction of substitution fluids. The method and the device for monitoring the introduction of substitution fluids are based on monitoring the fluid level in the bubble trap, arranged in the venous blood line of the extra-corporeal blood circuit. The method and the device require that fluid is added to fill the extra-corporeal blood circuit, for example, for a rinsing procedure of the extra-corporeal blood circuit by means of the substitution fluid supply line arranged upstream or downstr…