An artifical hybrid organ or gland is formed from two serially-interconnected chambers, the first of which comprises an ultrafiltration chamber which forms an ultrafiltrate from the blood stream applied to it and the second of which comprises a cell exchange chamber which, though immunologically isolated...http://www.google.com/patents/US4925555?utm_source=gb-gplus-sharePatent US4925555 - Ultrafiltering hybrid artificial organ
