Abstract
CAPD and CHF are our kinds of portable artificial kidney, but they have such a weak point as infection, or restrict of activity. So we are developing the wearable artificial kidney, which contain some kinds of adsoebent in order to regenerate for the dialysate. This new artificial kidney has some problems. 1) There was no adsorbent which adsorb urea directly. 2) Alumina, which is used for adsorbent of phosphate, has side effect such as bone or brain disorder. 3) It is very difficult to make a light wearable artificial kidney because of too much of adsorbents. In order to solve such problems we are developing new urea and phosphate adsorbents and new type container of adsorbents, which can be changed easily. But still now, more effective adsorbents are expected to make more small wearable artificial kidney.