인조혈관 동정맥루의 혈액 투석량에 따른인조혈관 내부 유동 특성에 관한 수치해석 연구NUMERICAL STUDY ON BLOOD FLOW CHARACTERISTICS IN A ARTERIOVENOUS GRAFTWITH DELIVERED DOSE DURING HEMODIALYSIS
- Authors
- 김재열; 노경철; 유홍선
- Issue Date
- 2011
- Publisher
- 한국전산유체공학회
- Keywords
- CFD; Unsteady Flow; Arteriovenous Graft; AVF Graft; Hemodialysis; Delivered Dose; 전산유체역학; 비정상유동; 동정맥루; 혈액투석; 투석량
- Citation
- 한국전산유체공학회지, v.16, no.4, pp 84 - 91
- Pages
- 8
- Journal Title
- 한국전산유체공학회지
- Volume
- 16
- Number
- 4
- Start Page
- 84
- End Page
- 91
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/27214
- ISSN
- 1598-6071
- Abstract
- Hemodialysis is essential for patients with end stage renal failure. It is important to improve the patency rate and to minimize occurrence of the stenosis. Also, the blood flow to the artificial kidney can affect the blood flow characteristics through arteriovenous graft. Thus, the delivered dose are important factors for analyzing hemodynamic characteristics during hemodialysis access. In this study, the numerical analysis was performed for the effect of the delivered dose during hemodialysis access on the blood flow through the graft. As a result, The adverse pressure gradient occurred in case of a larger delivered dose through a catheter than standard dose and the flow instability increased. Also the circulation flow appeared largely at anastomotic site of the vein when the delivered dose was exceeded about half blood flow of inlet blood flow.
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