Patent · US Expired

Dialytic apparatus

US4758336A · kind A · utility

12Cited by

1References

8Claims

0Family size

Assignee

Intermedicat GmbH · CH

Inventors

Gerhard Bock · Trostberg, DE
Michael Panse · Homberg (Efze), DE
Dieter Rath · Homberg (Efze), DE
Heinrich Eckel · Lengede, DE
Rolf Heitmeier · Kassel, DE

Key dates

Filing date	Dec 12, 1986
Grant date	Jul 19, 1988
Priority date	—
Expiry date	Dec 12, 2006

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M1/307
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A dialytic apparatus for single-needle dialysis comprises a first pump in the artery conduit, which first pump in the first phase conveys blood from the patient into the expansion chamber while the vein conduit is shut off. At the same time, the second pump transports blood from the expansion chamber to the dialyzer. This regulation is performed in dependence from the pressure in the vein conduit so that the pressure decrease caused by ultrafiltration is counterbalanced. In the second phase, the first pump stands still and closes the artery conduit while the second pump conveys blood out of the expansion chamber to the dialyzer at a constant rate.

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