PROBLEM TO BE SOLVED: To provide a dialyzer capable of reducing an absorbed amount of an osmotic agent contained in a dialysate in a body within a safe range.SOLUTION: A dialyzer includes at least an injection catheter 2, a semipermeable membrane container 1, a drainage catheter 3, and a filter 5. In the dialyzer, a set of the injection catheter 2, the semipermeable membrane container 1, and the drainage catheter 3, which are previously connected and integrated, is placed in the abdominal cavity of a patient the filter 5 is connected between one end of the drainage catheter 3 outside the body of a patient and one end of the injection catheter 2 outside the body of the patient the abdominal cavity of the patient is filled with a liquid with a higher osmotic pressure than the extracellular fluid in the body a dialysate, which contains a colloidal osmotic agent, with a higher osmotic pressure than the liquid filled in the abdominal cavity of the patient is circulated and water and uremic toxins discharged from the inside of the patients body are filtered by the filter 5.COPYRIGHT: (C)2014,JPO&INPIT【課題】透析液に含まれる浸透圧剤の体内吸収量を安全な範囲にまで低減させる透析装置を提供する。【解決手段】注入カテーテル2と、半透膜容器1と、排出カテーテル3と、フィルター5と、を少なくとも有し、予め接続一体化した注入カテーテル2、半透膜容器1、排出カテーテル3のセットを患者の腹腔内に留置し、排出カテーテル3の患者の体外側の一端と、注入カテーテル2の体外側の一端との間にフィルター5を接続し、患者の腹腔内に体内細胞外液より浸透圧が高い液を充填し、患者の腹腔内に充填した前記液より浸透圧が高い膠質浸透圧剤を含む透析液を循環させ、患者の体内から排出された水分と尿毒素をフィルター5によって濾過させる構成とした。【選択図】図1
