Handy type haemofiltration-plasma exchange apparatus.

A simple, compact and light weight design for a machine to perform plasma exchange or haemofiltration at a desired place is required. Based on these considerations, we have designed and fabricated a portable machine having a unique volume balancing mechanism and evaluated the in vitro and in vivo fluid balancing performances. We have obtained fully acceptable results during the evaluations and have performed clinical tests with favourable results.