Abstract
At present, a number of reports says hemodialysis without anticoagulant is appropriate as a treatment to hemorrhagic complications in hemodialyzed patients, the use of EVAL membrane which is composed of high molecule is particularly effective as a method. We aimed at the process of coagulation in the blood circuit (especialy, in the drip chamber) of extracorporal circuit and examined it at the aspect of hydrodynamics. By improving the chamber with equalized watercourse in each chamber and decreased blood stagnation, easy and stabilized hemodialysis without anticoagulant could be performed with various dialyzers without limiting membrane material and so on when it was used 80 times clinically. Furthermore, though the changes in blood properties affected the usage of hemodialysis without anticoagulant, the time blood coagulated during it could be grasped and it was performed smoothly by using thromboelastgram. From the above mentioned, it becomes clear that maintaining blood quantity equally in the circuit inhibits an effect of membrane material or structure of port's part.
