Patent · US Expired

Dialysis apparatus

US4514295A · kind A · utility

42Cited by

3References

17Claims

0Family size

Assignee

Fresenius AG · DE

Inventors

Bernd Mathieu · Spiesen, DE
Hans-Dietrich Polaschegg · Steyr, AT

Key dates

Filing date	Aug 2, 1982
Grant date	Apr 30, 1985
Priority date	—
Expiry date	Aug 2, 2002

Classification

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

Abstract

A blood accumulator for use in single needle dialysis systems is provided with elastic walls so that expansion of the accumulator in an outward direction may take place and in the filled condition, the walls are stretched. After the blood input pump is stopped and a valve opened, blood makes its way at a controlled rate out of the accumulator past the dialysis diaphragm back to the patient's body.

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