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Characterization of Surgical Tools for Specific Endovascular Navigation

Abstract : Purpose-The aim of this work was to mechanically characterize a specific active guidewire and catheters that are commercially available, for further implementation into numerical simulation of endovascular navigation towards complex targets. Methods-For the guidewire, 3-point bending tests and bending with added masses were used to obtain the Young moduli of its various components. To study its behavior, the guidewire was activated under "ideal" conditions and its performance was investigated. As for the various catheters, they were measured and 3-point bending tests were conducted to determine their mechanical properties. Results & Conclusion-The Young moduli of the shaft and the distal tip of the guidewire were determined. We defined a suitable current intensity to activate the guidewire related to an optimal curvature. Then, the time of activation / deactivation was measured at 1.7s. On the flip side, parts of the catheters were considered either elastic or viscoelastic. In all cases, the rigidity gradients along the various catheters were highlighted. The characterization of the aforementioned surgical tools provides the opportunity to simulate the endovascular nagivation process.
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https://hal.archives-ouvertes.fr/hal-03676019
Contributor : Nicolas TARDIF Connect in order to contact the contributor
Submitted on : Wednesday, July 13, 2022 - 1:20:40 PM
Last modification on : Tuesday, August 2, 2022 - 4:32:10 AM

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Arif Badrou, Nicolas Tardif, A. Even, Philippe Chaudet, Nathan Lescanne, et al.. Characterization of Surgical Tools for Specific Endovascular Navigation. Cardiovascular Engineering and Technology, Springer, 2022, ⟨10.1007/s13239-022-00612-8⟩. ⟨hal-03676019v2⟩

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