Alexander Nikanorov, MD, PhD, H

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Fracture of self-expanding nitinol stents stressed in vitro under simulated intravascular conditions Alexander Nikanorov, MD, PhD, H. Bob Smouse, MD, Karim Osman, MS, Michael Bialas, ME, Sanjay Shrivastava, PhD, Lewis B. Schwartz, MD Journal of Vascular Surgery Volume 48, Issue 2, Pages 435-440 (August 2008) DOI: 10.1016/j.jvs.2008.02.029 Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig 1 Measurement of stent shortening and bending was tested in cadaveric femoropopliteal arteries. A, A radiograph shows the stent in a leg in neutral position. The bending angle (°) and stent length (L) are labeled. B, A radiograph shows the stent at knee/hip flexion 90°/90°. Axial compression was determined by subtraction of the measured data at flexed position from the data at neutral position and deflection angle by subtraction of the data at neutral position from the data at flexed position. Journal of Vascular Surgery 2008 48, 435-440DOI: (10.1016/j.jvs.2008.02.029) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig 2 The axial deformation fatigue testing apparatus consists of five elastic silicone tubes, each containing a single stent. Displacement consisted of 0% to 5% cyclic axial deformation (shortening). The apparatus is designed and manufactured by Abbott Vascular. Journal of Vascular Surgery 2008 48, 435-440DOI: (10.1016/j.jvs.2008.02.029) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig 3 The bending deformation fatigue testing apparatus consists of multiple elastic silicone tubes, with each tube containing a single stent. The three tubes shown loaded in the apparatus with a bend deflection angle of 48°. The apparatus is designed and manufactured by Abbott Vascular. Journal of Vascular Surgery 2008 48, 435-440DOI: (10.1016/j.jvs.2008.02.029) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions