Flow pattern and shear stress distribution in distal end-to-side anastomosis

• Autorzy: Adamiec J. , Matecha J. , Netrebska H. , Tuma J.
• Języki publikacji: EN

Abstrakty

EN

We present the results of the first part of the project whose objective is to optimize the shape of anastomosis (end-to-side), which is used for the bypass anastomosis, and thus to minimize the negative impact of the flow dynamics on the vascular walls and blood, thanks to which the bypass failure risk can be successfully reduced. The Particle Image Velocimetry (PIV) method is used for experimental measurements that are combined with numerical solution. The goal of this work was to develop, both experimentally and numerically, a basic idea of flow behind the distal end-to-side bypass junction, depending on the connection angle both in steady and unsteady conditions.

Słowa kluczowe

EN

anastomosis; bypass; flow dynamics; shear stress distribution

PL

anastomoza; przepływ omijający

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2006
• Tom: Vol. 8, nr 1
• Strony: 3--12
• Opis fizyczny: Bibliogr. 14 poz., rys., wykr.

Twórcy

autor

Adamiec J.

autor

Matecha J.

autor

Netrebska H.

autor

Tuma J.

• Czech Technical University in Prague, Faculty of Mechanical Engineering, Technická 4, Prague 6, 166 07, Czech Republic

Bibliografia

• [1] ADAMEC J., NOŽIČKA J., KORENÁR J., Turbulent Stress in Unsteady Fluid Flow, Danubia-Adria Symposiumon Experimental Methods in Solid Mechanics – Abstracts, Warsaw, 2002, pp. 174–175.
• [2] ADAMEC J., NOŽIČKA J., HANUS D., KORENÁR J., Experimental Investigation of Pulsatile Flow in Circular Tubes, Journal of Propulsion and Power, USA, 2001, Vol. 17, No. 5, pp. 1133–1136.
• [3] ADAMEC J., NOŽIČKA J., KORENÁR J., Reynolds Stress in Pulsatile Flow, Danubia-Adria Symposium. Proceedings – Extended Summaries, Steyr: Austrian Society of Experimental Strain Analysis, 2001, pp. 135–136.
• [4] ADAMEC J., NOŽIČKA J., KORENÁR J., Investigation of the Pulsatile Pipe Flow, International Journal of Heat and Technology, Italy, 2000, Vol. 18, No. 2, pp. 17–22.
• [5] ADAMEC J., MATÉCHA J., NETREBSKÁ H., TUMA J., Flow Pattern and Shear Stress Distribution in Distal End-to-Side Anastomosis, The 22nd Danubia-Adria Symposium on Experimental Methods in Solid Mechanics, Parma, 2005, pp. 86–87.
• [6] MATECHA J., NETREBSKÁ H., TUMA J., ADAMEC J., BÍCA M., Flow Investigation behind the End-to-Side Anastomosis, The 16-th International Symposium on Transport Phenomena, Prague, 2005, pp. 107.
• [7] MATECHA J., NETREBSKÁ H., TUMA J., SCHMIRLER M., ADAMEC J., Unsteady Flow Investigation behind the End-to-Side Anastomosis, The 3rd European Medical and Biological Engineering Conference, Prague, 2005.
• [8] PÉTA M., NOVOTNÝ J., Image Processing in PIV, [in:] The 16-th International Symposium on Transport Phenomena, Praha, Czech Technical University in Prague, 2005, s. 140.
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• [12] JACKSON Z.S., ISHIBASHI H., GOTLIEB A.I., LANGILLE B.L., Effect of anastomotic angle on vascular tissue responses at end-to-side arterial grafts, Journal of Vascular Surgery, August 2001, Vol. 31, No. 2, pp. 300–307.
• [13] KEYNTON R.S., EVANCHO M.M., SIMS L.R., RITTGERS E.L., RODWAY N.V., GOBIN A., Intimal Hyperplasia and Wall Shear in Arterial Bypass Graft Distal Anastomoses: An In Vivo Model Study, Journal of Biomechanical Engineering, October 2001, Vol. 123, pp. 464–473.
• [14] DEPLANO V., BERTOLOTTI V., BOIRON O., Numerical Simulations of Unsteady Flows in a StenosedCoronary Bypass Graft, Medical & Biological Engineering & Computing, 2001, Vol. 9, pp. 488–499.