Machine and procedure for extracorporeal treatment of blood

US8105260B2 · kind B2 · utility

Assignee

• GAMBRO LUNDIA AB · SE

Inventors

• Claudio Tonelli · Vimercate, IT
• Bernd Wittner · Hechingen, DE
• Werner Beck · Rottenburg am Neckar, DE
• Helmut Hildwein · Werl, DE
• Reinhold Deppisch · Hechingen, DE
• Jonas Svensson · Ängelholm, SE
• Bjorn Ericson · Lund, SE

Key dates

• Filing date: May 27, 2005
• Grant date: Jan 31, 2012
• Expiry date: May 7, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2205/60
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A machine (1) for extracorporeal blood treatment comprises a device (2) for ultrafiltration of a liquid through a semi-permeable membrane (3) of a blood treatment device (4), a first sensor (11) for ultrafiltration rate through the membrane, a second group of sensors (13) for measuring a trans-membrane pressure, and a programmed controller (14) for calculating a maximum ultrafiltration rate as a function of the transmembrane pressure. The machine is suitable for kidney failure treatments, such as hemofiltration and hemodiafiltration. In a relatively short time the machine enables a large quantity of corporeal blood to be removed from the patient.