A study of the influence of single needle dialysis on the principal parameters of haemodialyser performance.

The clearance and ultrafiltration characteristics of flat plate and hollow fibre hemodialysers have been established using conventional two needle dialysis and unipuncture with a Bellco BL 760 double head pump system. The results obtained are comparable with no detriment to the performance when in the unipuncture mode. Furthermore, the unipuncture system used for our studies enables control of ultrafiltration to be achieved enabling the use of high flux dialysers without the need for special equipment.