Plastic Shaping of Concentrator-Waveguide Tip for Ultrasound Endovascular Ablation-Reference-Cited by-同舟云学术

Plastic Shaping of Concentrator-Waveguide Tip for Ultrasound Endovascular Ablation

Published:2021-04-08 Issue:2 Volume:20 Page:101-108
ISSN:2414-0392
Container-title:Science & Technique
language:
Short-container-title:Nauka teh.

Author:

Dai Wenqi¹,Aliakseyeu Yu. G.¹,Korolyov A. Yu.¹,Budnitskiy A. S.¹

Affiliation:

1. Belarusian National Technical University

Abstract

One of the most effective methods of treating intravascular formations at present is the use of stepped ultrasonic waveguide systems of a tubular type (concentrators-waveguides) with a hollow spherical tip, the presence of which makesit possible to supply liquid media to the dislocation zone of an intravascular formation with the aim of additional cavitation effect and as efficiently as possible. destroy intravascular formations due to vibration impact. Based on the results of the analysis on the features of the existing shaping methods for obtaining a hollow spherical tip of the concentrator-waveguide, it is advisable to use methods of plastic deformation – expansion and crimping. The paper presents results of preliminary calculations, numerical modeling and experimental studies of tip shaping processes of the concentrator-waveguide by distribution and crimping. On the basis of the finite element method in the environment of the ABAQUS software package, modeling of the expansion and crimping of a pipe billet was carried out, which has made it possible to: evaluate the stress-strain state of the deformable conical section of the billet, the change in wall thickness during the forming process and calculate the length of the billet for the design of the conical section; to establish the patterns of the influence of geometric parameters on the power modes of the distribution process; to set the parameters of the modes of forming the tip of the concentrator-waveguide by the method of distribution and crimping, which ensure the formation of the required geometry. The obtained results of preliminary calculation, numerical modeling and experimental studies of tip shaping processes of the concentrator-waveguide by distribution and crimping have similar values, which confirms the correctness of using both the method of preliminary calculation and numerical modeling in the development of the technology for manufacturing the concentrator-waveguide.

Publisher

Belarusian National Technical University

Reference10 articles.

1. Karande G. Y., Hedgire S. S., Sanchez Y., Baliyan V., Mishra V., Ganguli S., Prabhakar A. M. (2016) Advanced Imaging in Acute and Chronic Deep Vein Thrombosis. Cardiovascular Diagnosis and Therapy, 6 (6), 493–507. https://doi.org/10.21037/cdt.2016.12.06.

2. Birchall M., Sevciuc N., Madureira C. (2007, October) Internal Ultrasonic Pipe & Tube Inspection – IRIS. IV Con-ferencia Panamericana de END. Available at: http://www.ndt.net/article/panndt2007/papers/149.pdf.

3. Bokarev I. N., Popova L. V. (2014) Modern Problems of Arterial and Venous Thrombosis. Prakticheskaya Meditsina = Practical Medicine, 9 (6), 13–17 (in Russian).

4. Minchenya V. T., Adzerikho I. E., Korolyov A. Yu. (2016) Application of Tube-Type Ultrasonic Concentrators-Waveguides to Eliminate Obstruction of Blood Vessels. Doklady Belorusskogo Gosudarstvennogo Universiteta Informatiki i Radioèlektroniki = Doklady BGUIR, (7), 300–303 (in Russian).

5. Mrochek A. G., Adzerikho I. E. (2001) Method of Destruction of Venous and Arterial Thromboemboli. Patent No 3808 C1 Republic of Belarus (in Russian).