Patent · US Expired

Dialysis apparatus and method for its control

US4614590A · kind A · utility

77Cited by

2References

11Claims

0Family size

Assignee

Intermedicat GmbH · CH

Inventors

Dieter Rath · Homberg (Efze), DE
Peter Seeck · Homberg (Efze), DE

Key dates

Filing date	Sep 28, 1984
Grant date	Sep 30, 1986
Priority date	—
Expiry date	Sep 28, 2004

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M1/308
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A dialysis apparatus utilizes an expansion chamber in parallel with a pump from which the chamber receives blood via a valve. During the return flow phase the pump rotates in the same direction; but, the valve is closed and a valve at the chamber outlet is opened. The pump draws blood from the chamber and transports it to a dialyzer. A control device regulates the pump and valves depending on the time integral of the pump delivery. In each phase, blood is transported until the chamber has received or discharged a predetermined volume. The pump speed is variable during operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.