A peritoneal dialysis apparatus comprises a single lumen catheter through which in an intermittently operated circuit dialysis liquid is pumped from the peritoneal cavity of a patient and is then moved along in contact with a dialysis membrane, at which not only mass exchange but furthermore the withdrawal...http://www.google.fr/patents/US4618343?utm_source=gb-gplus-shareBrevet US4618343 - Apparatus for peritoneal dialysis
