Dialysis machines and methods of disinfecting a dialysis machine

US11890401B2 · kind B2 · utility

Assignee

• GAMBRO LUNDIA AB · SE

Inventors

• Helena Jeppsson · Hörby, SE
• Jan Sternby · Lund, SE
• Thomas Hertz · Lund, SE
• Olof Jansson · Vellinge, SE
• Sture Hobro · Lund, SE
• Evi Martinson · Södra Sandby, SE

Key dates

• Filing date: Feb 24, 2022
• Grant date: Feb 6, 2024
• Expiry date: Feb 24, 2042

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/366
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Dialysis machines comprising a feed arrangement to supply a dialysis fluid to a dialyzer during dialysis treatment and a return arrangement to remove the dialysis fluid from the dialyzer during dialysis treatment and forward it to an exit; a feed recirculation circuit to allow a fluid of the feed arrangement to be re-circulated in a fluid loop path comprising, at least a portion of, the feed arrangement and the feed recirculation circuit and a return recirculation circuit to allow a fluid of the return arrangement to re-circulate in an auxiliary fluid loop path comprising, at least a portion of, the return arrangement and the return recirculation circuit. A controller configured to perform disinfection by re-circulating a disinfectant and/or a heated fluid through said fluid loop path and/or through said auxiliary fluid loop path. The dialysis machine further comprises a feed forward arrangement connected to the fluid loop path and arranged to enable a fluid of the feed arrangement to be forwarded to the exit by-passing the auxiliary fluid loop path.