Development of four different devices to turn over introducer sheaths

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Presentation transcript:

Development of four different devices to turn over introducer sheaths Jan Borggrefe, MD, Helmuth Knabe, MD, Beata Hoffmann, Martin Heller, MD, Jost Philipp Schäfer, MD Journal of Vascular Surgery Volume 58, Issue 1, Pages 194-200 (July 2013) DOI: 10.1016/j.jvs.2012.10.065 Copyright © 2013 Society for Vascular Surgery Terms and Conditions

Fig 1 Turning maneuver with prototype A. A, A sheath is placed in a blood vessel. The sheath-turning auxiliary device (STAD) is loaded in the sheath while a guidewire can be kept in place. The split tip of the STAD spreads apart when reaching the endovascular position. B, The STAD with the sheath is retracted. When the split tip reaches the puncture site, the STAD and the sheath are flipped as shown. C, The wire is guided into the opposite direction. D, The STAD is pulled out. Journal of Vascular Surgery 2013 58, 194-200DOI: (10.1016/j.jvs.2012.10.065) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

Fig 2 Turning maneuver with prototype B. A, The sheath-turning auxiliary device (STAD) with the sheath is retracted after the STAD is loaded in the sheath and a hook unfolds when reaching the endovascular position. A guidewire (not shown) can be kept in place. B, When the hook reaches the puncture site, there will be a slight resistance. C, The STAD and the sheath are flipped over, as shown. The wire (not shown) is guided into the opposite direction. D, The STAD is pulled out after folding in the hook by pulling a suture (not shown) inside the STAD. Journal of Vascular Surgery 2013 58, 194-200DOI: (10.1016/j.jvs.2012.10.065) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

Fig 3 Turning maneuver with prototype C. A, A sheath is regularly placed in a blood vessel. The sheath-turning auxiliary device (STAD) is loaded in the sheath while a guidewire can be kept in place. B, The balloon is inflated and the STAD with the sheath is retracted. C, When the inflated balloon reaches the puncture site, the STAD and the sheath are flipped over, as shown. D, The wire is guided into the opposite direction, the balloon is deflated, and the STAD is pulled out. Journal of Vascular Surgery 2013 58, 194-200DOI: (10.1016/j.jvs.2012.10.065) Copyright © 2013 Society for Vascular Surgery Terms and Conditions

Fig 4 Turning maneuver with prototype D. A, The sheath-turning auxiliary device (STAD) is loaded into the sheath. B, After the filament attached to the stick's center is pulled, (C) the sheath can be flipped over. D, Consecutive removal by pulling the filament attached to the stick's end. Journal of Vascular Surgery 2013 58, 194-200DOI: (10.1016/j.jvs.2012.10.065) Copyright © 2013 Society for Vascular Surgery Terms and Conditions