Dialysis machine, and method of determining the calcification in a dialysis machine

US10155077B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Andreas Maierhofer · Schweinfurt, DE
• Alfred Gagel · Litzendorf, DE
• Malte Gross · Schweinfurt, DE
• Michael Koch · Biberist, CH

Key dates

• Filing date: Nov 17, 2014
• Grant date: Dec 18, 2018
• Expiry date: Oct 21, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/7554
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A dialysis machine has at least one filter for the filtration of dialysis liquid and a device for determining calcification of the dialysis machine. The device has one or more sensors configured and arranged to detect either downstream, or upstream and downstream, of the at least one filter an ion concentration or a parameter representative of the ion concentration or of its change of the dialysis liquid, of a solution serving the decalcification or of another measuring solution. The device for determining the calcification of the dialysis machine has an evaluation or calcification unit configured to determine the calcification of the dialysis machine based on the ion concentration or parameter value detected by the sensor or sensors.