2020 Volume Annual58 Issue Abstract Pages 494
The double-lumen catheter (DLC) for hemodialysis is widely used as a means of vascular access (VA) for blood purification in emergency and acute medical care. In the clinical use of DLCs, however, blood removal failure tends to occur and may impede therapy continuation. In such cases, continuation of therapy may be possible by reversing the DLC connection in the blood circuit from the normal connection. Despite the resolution of sticking phenomenon to the vessel wall, however, this interchange between the blood removal port and the retransfusion port gives rise to recirculation and markedly reduces dialysis efficiency. In the present study, to decrease sticking phenomenon by optimizing DLC tip shape, we focused on pressure change in blood removal and construction of a system that can quantitatively assess the effect of various DLC tip shape parameters on sticking phenomenon.
