A Study Of The Effects Of Side Holes In Indwelling Needles For Hemodialysis On Actual Blood Flow Rate Using Computational Fluid Dynamics Analysis
2016 年 54Annual 巻 Proc 号 p. P3-G04-1-P3-G04-2
詳細
2016 年 54Annual 巻 Proc 号 p. P3-G04-1-P3-G04-2
In indwelling needles, use of thinner needles leads to a greater discrepancy between set blood flow rate and actual blood flow rate. Providing side holes in the indwelling needle is an effective means for increasing the actual blood flow rate without changing the diameter of the indwelling needle. Given this situation, we are seeking theoretical optimization of side holes using computational fluid dynamics (CFD) analysis. The blood removal pressure obtained at each prescribed blood flow rate was determined at the blood removal end. In addition, I defined fluid resistance in order to reconcile the results of the analysis with the experimental results. The results showed that the blood removal flow rate obtained from the CFD analysis conducted on indwelling needles with side holes was largely consistent with the actual blood flow rate obtained from the experiment. Thus, we were able to explore the optimization of side holes from a theoretical standpoint using CFD analysis.
