Apparatus for conducting fluids in a dialysis system

US4191646A · kind A · utility

Assignee

• Gambro AB · SE

Inventors

• Lars-Ake Larsson · Lund, SE
• Lars J. C. Traven · Lund, SE

Key dates

• Filing date: Oct 13, 1977
• Grant date: Mar 4, 1980
• Expiry date: Oct 13, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S210/929
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Fluid conducting apparatus is disclosed for a dialysis system having a dialyzer, a source of dialysis fluid for the dialyzer, a heating chamber for heating dialysis fluid before introduction into the dialyzer, and pump means for pumping heated dialysis fluid from the heating chamber to and through the dialyzer. The fluid conducting apparatus includes first and second fluid conducting means. The first fluid conducting means is adapted to be connected to the source of dialysis fluid and to the heating chamber for introducing dialysis fluid into the heating chamber, and the second fluid conducting means is adapted to be connected to the heating chamber, the dialyzer and the pump means for conducting the fluid from the heating chamber to and through the dialyzer. The apparatus also includes shut-off means adapted to terminate the flow of heated dialysis fluid from the heating chamber to the dialyzer when the rate of flow of fluid out of the chamber exceeds the rate of flow of fluid into the chamber. In this way, the heating chamber will not be emptied of dialysis fluid.