| 摘要 |
According to the present invention, a dialyzing fluid pump comprises; a housing having an accommodating space formed therein; a dialyzing fluid supply tube and a dialyzing fluid recovery tube, at least a portion of each of which is accommodated in the accommodating space; a cam rotatably installed in the accommodation space; and a motor for rotating the cam. The dialyzing fluid supply tube is made of a flexible material which can be contracted or relaxed, and one end thereof is connected to a hemodialysis filter and the other end thereof is connected to a dialyzing fluid supply tank. The dialyzing fluid recovery tube is made of a flexible material which can be contracted or relaxed, and one end thereof is connected to the hemodialysis filter and the other end thereof is connected to a dialyzing fluid recovery tank. The cam has a cam surface for pressing the dialyzing fluid supply tube and the dialyzing fluid recovery tube so as to discharge a dialyzing fluid from the inside of the dialyzing fluid supply tube and of the dialyzing fluid recovery tube, respectively. According to the present invention, the dialyzing fluid being supplied to the hemodialysis filter is under pulsatile flow conditions, to thereby increase the magnitude of a pressure difference and the frequency of the occurrence of a pressure difference between blood and the dialyzing fluid in the hemodialysis filter. |
