Renal failure therapy system having electrically floating fluid pathway

US11116067B2 · kind B2 · utility

Assignee

• GAMBRO LUNDIA AB · SE

Inventors

• Sture Hobro · Lund, SE
• Erik Torgny · Lund, SE
• Par Lofgren · Lund, SE

Key dates

• Filing date: Oct 14, 2016
• Grant date: Sep 7, 2021
• Expiry date: Nov 4, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/702
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A renal failure therapy system (10) includes a dialyzer (102); a blood circuit (100) in fluid communication with the dialyzer (102); a dialysis fluid circuit (30) in fluid communication with the dialyzer (102); and an electrically floating fluid pathway (140) comprising at least a portion of the blood circuit (100) and at least a portion of the dialysis fluid circuit (30), wherein the only electrical path to ground is via used dialysis fluid traveling through machine (12) to earth ground (28), and wherein at least one electrical component (46, 90, 82, 66, 102, 116) in the at least a portion of the dialysis fluid circuit (30) of the electrically floating fluid pathway (140) is electrically bypassed.