Device and method for regulating a treatment device

US10307526B2 · kind B2 · utility

Assignee

• Fresenius Medical Care Deutschland GmbH · DE

Inventors

• Alexander Heide · Eppstein, DE
• Dejan Nikolic · Bad Soden, DE
• Arne Peters · Bad Homburg vor der Höhe, DE
• Christoph Wiktor · Gelnhausen, DE

Key dates

• Filing date: Jan 29, 2014
• Grant date: Jun 4, 2019
• Expiry date: Jan 4, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/3365
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method and a device are disclosed for regulating an ultrafiltration in a dialysis treatment, in which the blood to be ultrafiltered in an extracorporeal blood circulation (109) flows through a blood chamber (110) of a dialyzer (113), which is subdivided by a semipermeable membrane (111) into a blood chamber (110) and a dialysis fluid chamber (108), and dialysis fluid in a dialysis fluid circulation (109) flows through the dialysis fluid chamber (108) of the dialyzer (113). The device has a blood pump (115) for controlling a blood flow in the extracorporeal blood circulation (112), a dialysis fluid pump (107) for controlling a dialysis fluid flow in the dialysis fluid circulation (109) upstream or downstream from the dialyzer (113), for controlling the dialysis fluid flow upstream of downstream from the dialyzer, a balancing device (104) for setting up a fluid balance in the dialysis fluid circulation between an inflow (106) and an outflow (105) of the dialysis fluid chamber (113) as a measure of the ultrafiltration, as well as a regulating unit (101) for regulating the blood pump (115), the throttle (117) and/or the dialysis fluid pump (107). The pumps or the throttles (117) are …