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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">sibmed</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский научный медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Сибирский научный медицинский журнал</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-2512</issn><issn pub-type="epub">2410-2520</issn><publisher><publisher-name>ИЦиГ СО РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18699/SSMJ20240514</article-id><article-id custom-type="elpub" pub-id-type="custom">sibmed-1713</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МЕДИКО-БИОЛОГИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOMEDICINE</subject></subj-group></article-categories><title-group><article-title>О постановке численного моделирования протезов клапанов сердца</article-title><trans-title-group xml:lang="en"><trans-title>On the setting up of numerical modeling of heart valve prostheses</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3211-1250</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Клышников</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Klyshnikov</surname><given-names>K. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клышников Кирилл Юрьевич, к.м.н</p><p>650002, г. Кемерово, б-р им. Академика Л.С. Барбараша, 6</p></bio><bio xml:lang="en"><p>Kirill Yu. Klyshnikov, candidate of medical sciences</p><p>650002, Kemerovo, Academika Barbarasha blvd., 6</p></bio><email xlink:type="simple">klyshku@kemcardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2404-2873</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Онищенко</surname><given-names>П. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Onishchenko</surname><given-names>P. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Онищенко Павел Сергеевич</p><p>650002, г. Кемерово, б-р им. Академика Л.С. Барбараша, 6</p></bio><bio xml:lang="en"><p>Pavel S. Onishchenko</p><p>650002, Kemerovo, Academika Barbarasha blvd., 6</p></bio><email xlink:type="simple">onisps@kemcardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4890-0393</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глушкова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Glushkova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Глушкова Татьяна Владимировна, к.б.н.</p><p>650002, г. Кемерово, б-р им. Академика Л.С. Барбараша, 6</p></bio><bio xml:lang="en"><p>Tatyana V. Glushkova, candidate of biological sciences</p><p>650002, Kemerovo, Academika Barbarasha blvd., 6</p></bio><email xlink:type="simple">glushtv@kemcardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0033-9376</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акентьева</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Akentyeva</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Акентьева Татьяна Николаевна</p><p>650002, г. Кемерово, б-р им. Академика Л.С. Барбараша, 6</p></bio><bio xml:lang="en"><p>Tatyana N. Akentyeva</p><p>650002, Kemerovo, Academika Barbarasha blvd., 6</p></bio><email xlink:type="simple">t.akentyeva@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6099-0315</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Костюнин</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kostyunin</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Костюнин Александр Евгеньевич, к.б.н.</p><p>650002, г. Кемерово, б-р им. Академика Л.С. Барбараша, 6</p></bio><bio xml:lang="en"><p>Alexander E. Kostyunin, candidate of biological sciences</p><p>650002, Kemerovo, Academika Barbarasha blvd., 6</p></bio><email xlink:type="simple">kostae@kemcardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4405-8904</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Резвова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Rezvova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Резвова Мария Александровна</p><p>650002, г. Кемерово, б-р им. Академика Л.С. Барбараша, 6</p></bio><bio xml:lang="en"><p>Maria A. Rezvova</p><p>650002, Kemerovo, Academika Barbarasha blvd., 6</p></bio><email xlink:type="simple">rezma@kemcardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7477-3979</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Овчаренко</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ovcharenko</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Овчаренко Евгений Андреевич, к.т.н.</p><p>650002, г. Кемерово, б-р им. Академика Л.С. Барбараша, 6</p></bio><bio xml:lang="en"><p>Evgeny A. Ovcharenko, candidate of technical sciences</p><p>650002, Kemerovo, Academika Barbarasha blvd., 6</p></bio><email xlink:type="simple">ovchea@kemcardio.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИИ комплексных проблем сердечно-сосудистых заболеваний</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research Institute for Complex Issues of Cardiovascular Diseases</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>10</month><year>2024</year></pub-date><volume>44</volume><issue>5</issue><fpage>119</fpage><lpage>128</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Клышников К.Ю., Онищенко П.С., Глушкова Т.В., Акентьева Т.Н., Костюнин А.Е., Резвова М.А., Овчаренко Е.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Клышников К.Ю., Онищенко П.С., Глушкова Т.В., Акентьева Т.Н., Костюнин А.Е., Резвова М.А., Овчаренко Е.А.</copyright-holder><copyright-holder xml:lang="en">Klyshnikov K.Y., Onishchenko P.S., Glushkova T.V., Akentyeva T.N., Kostyunin A.E., Rezvova M.A., Ovcharenko E.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://sibmed.elpub.ru/jour/article/view/1713">https://sibmed.elpub.ru/jour/article/view/1713</self-uri><abstract><p>Цель работы – сравнение сценариев численного моделирования работы биопротезов клапана сердца, идентификация их преимуществ и ограничений. Материал и методы. Численное моделирование проводили в среде инженерного анализа Abaqus/CAE (Dassault Systèmes, Франция) в условиях имитации двух циклов работы створчатого аппарата. Всего исследовано три различных компьютерных модели, каждая из которых предоставляла разные уровни детализации и сложности биопротеза «ЮниЛайн». Модель № 1 была наиболее упрощенной и рассматривала только геометрию створки, модель № 2 имела упругие соединители с изменяемой жесткостью, модель № 3 включала композитный опорный каркас. Качественную валидацию результатов моделирования проводили при сравнении с натурными данными, полученными на гидродинамическом стенде (ViVitro Labs, Канада) при испытаниях клинической модели соответствующего биопротеза «ЮниЛайн». Результаты. Одна из постановок, модель № 2, продемонстрировала искусственную концентрацию напряжения по Мизесу в области крепления коннекторов, достигающую 2,695 МПа, что близко к пределу прочности биоматериала. Для других постановок обнаружено более умеренное распределение напряжения – до 0,803 и 0,529 МПа. При этом показано, что только модель № 2 и модель № 3 воспроизводят ключевой эффект работы биопротеза, подвижность комиссуральных стоек, за счет чего обеспечивают качественное совпадение с работой в стендовых условиях. Заключение. Предложена методика, которая может быть полезна для проведения дальнейших in silico исследо- ваний биопротезов клапанов сердца. Описаны граничные условия, методы связывания компонентов протеза и возможности для масштабных поисковых исследований на примере упрощенных моделей. Результаты работы подтверждают необходимость включения всех компонентов протеза в численный расчет для более полного и реалистичного представления его биомеханики. Такая детализация способствует более точной оценке безопасности и эффективности устройства, а также может служить основой для дальнейшей оптимизации устройства.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to compare scenarios of numerical modeling of the operation of a heart valve bioprosthesis, identifying their advantages and limitations. Material and methods. Numerical modeling was conducted in the Abaqus/ CAE (Dassault Systèmes, France) engineering analysis environment, simulating two cycles of the valve apparatus’s operation. In total, three different computer models were studied, each providing different levels of detail and complexity of the “UniLine” bioprosthesis. Model No.1 was the most simplified and considered only the geometry of the flap; Model No. 2 incorporated elastic connectors with variable stiffness; Model No. 3 included a composite support frame. Qualitative validation of the modeling results was conducted by comparing with the bench tests data obtained on the hydrodynamic stand (ViVitro Labs, Canada) during tests of the corresponding clinical model of the “UniLine” bioprosthesis. Results. One of the setups, Model No. 2, displayed an artificial stress concentration according to Von Mises in the connector attachment area, reaching 2.695 MPa, which is close to the material’s strength limit. Other setups showed a more moderate stress distribution – up to 0.803 and 0.529 MPa. Moreover, it was demonstrated that only Model No. 2 and Model No. 3 reproduce the key effect of the bioprosthesis operation, the mobility of the commissural posts, ensuring a qualitative match with the work in bench conditions. Conclusions. A methodology is proposed that may be useful for conducting further in silico studies of heart valve bioprostheses. Boundary conditions, methods for linking prosthetic components, and opportunities for large-scale “exploratory” studies based on using simplified models are described. The study results confirm the necessity of including all prosthesis components in the numerical model for a more comprehensive and realistic representation of its biomechanics. Such detail contributes to a more accurate safety and effectiveness assessment of the device and can also serve as a foundation for its further optimization.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>биопротез клапана сердца</kwd><kwd>численное моделирование</kwd><kwd>напряженно-деформированное состояние</kwd><kwd>оптимизация медицинских протезов</kwd><kwd>гидродинамический удар</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bioprosthetic heart valve</kwd><kwd>numerical modeling</kwd><kwd>stress-strain</kwd><kwd>optimization of medical prostheses</kwd><kwd>hydrodynamic load</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках фундаментальной темы № 0419-2022-0001 «Молекулярные, клеточные и биомеханические механизмы патогенеза сердечно-сосудистых заболеваний в разработке новых методов лечения заболеваний сердечно-сосудистой системы на основе персонифицированной фармакотерапии, внедрения малоинвазивных медицинских изделий, биоматериалов и тканеинженерных имплантатов».</funding-statement><funding-statement xml:lang="en">This work was carried out within the framework of the fundamental topic No. 0419-2022-0001 “Molecular, cellular and biomechanical mechanisms of the pathogenesis of cardiovascular diseases in the development of new methods of treatment of cardiovascular diseases based on personalized pharmacotherapy, the implementation of minimally invasive medical devices, biomaterials and tissue-engineered grafts”.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Abbasi M., Azadani A.N. 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