Peritoneal dialysis system and method having intraperitoneal pressure sensing

US12263285B2 · kind B2 · utility

Assignees

• Baxter International Inc. · US
• Baxter Healthcare SA · CH

Inventors

• Olof Jansson · Vellinge, SE
• Mattias Holmer · Lund, SE
• Olof Ekdahl · Lund, SE
• Innas Forsal · Malmö, SE
• Roger Nilsson · Höör, SE
• Henrik Hall · Sandviken, SE
• Bjorn Ericson · Lund, SE
• Jonas Alson · Lund, SE
• Michael Pettersson · Malmö, SE
• Oskar Erik Frode Styrbjorn Fallman · Lund, SE
• Jimmie Marcus Axel Hansson · Bunkeflo, SE

Key dates

• Filing date: Dec 28, 2021
• Grant date: Apr 1, 2025
• Expiry date: Dec 30, 2043

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2209/082
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A peritoneal dialysis (“PD”) system includes a housing; a dialysis fluid pump housed by the housing; a dual lumen patient line extending from the housing; a filter set including a final stage filter located along a first line, and which includes a second line in parallel with the first line, the first line in fluid communication with a first lumen of the dual lumen patient line, and the second line in fluid communication with a second lumen of the dual lumen patient line; a pressure sensor located within the housing and positioned so as to sense a static or substantially static PD fluid pressure in the second lumen while fresh PD fluid is pumped through the first lumen and the final stage filter; and a control unit configured to use the sensed static or substantially static pressure in a pressure control routine for the dialysis fluid pump.