Blood treatment apparatus for reducing the probability of contact phase activation

US10668198B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Ursula Kreuzberg · Leverkusen, DE
• Cacilia Scholz · Schwalbach, DE
• Stefano Stuard · Francavilla al Mare, IT
• Wolfgang Wehmeyer · Tübingen, DE

Key dates

• Filing date: Aug 10, 2016
• Grant date: Jun 2, 2020
• Expiry date: Sep 8, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/3324
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A blood treatment apparatus having an extracorporeal circuit has a dialyzate circuit with a dialyzer, having a blood-side chamber, and a dialyzate-side chamber separated from the blood-side chamber by a membrane. The blood-side chamber is in fluid communication with the extracorporeal circuit and the dialyzate-side chamber is in fluid communication with the dialyzate circuit, and the apparatus has a preparation unit for online preparation of a solution. The apparatus has a first means for carrying out a priming mode and a second means for carrying out an initial treatment mode. The first means is configured to control the preparation unit to prepare a flushing solution having a pH of ≥7.3, with the extracorporeal circuit being filled with the flushing solution. The second means is configured to control the preparation unit to prepare the dialyzate having a pH of ≥7.3, with the dialyzate circuit being filled with the dialyzate.