Apical aortic blood pump preclinical assessment for long‐term use: Durability test and stator topology to reduce wear in the bearing system
| العنوان: | Apical aortic blood pump preclinical assessment for long‐term use: Durability test and stator topology to reduce wear in the bearing system |
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| المؤلفون: | Aron Andrade, Bruno Utiyama da Silva, Edir Branzoni Leal, José F. Biscegli, Jeison Fonseca, José Roberto Cardoso |
| المصدر: | Artificial Organs. 44:779-784 |
| بيانات النشر: | Wiley, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Time Factors, Materials science, Stator, medicine.medical_treatment, 0206 medical engineering, Biomedical Engineering, Medicine (miscellaneous), Bioengineering, Topology (electrical circuits), 02 engineering and technology, 030204 cardiovascular system & hematology, Prosthesis Design, Topology, law.invention, Biomaterials, 03 medical and health sciences, 0302 clinical medicine, law, medicine, Humans, Device failure, Aorta, Bridge to transplant, Bearing (mechanical), General Medicine, 020601 biomedical engineering, Durability, Prosthesis Failure, Equipment Failure Analysis, Blood pump, Ventricular assist device, Heart-Assist Devices |
| الوصف: | This study presents an assessment for long-term use of the apical aortic blood pump (AABP), focusing on wear reduction in the bearing system. AABP is a centrifugal left ventricle assist device initially developed for bridge to transplant application. To analyze AABP performance in long-term applications, a durability test was performed. This test indicated that wear in the lower bearing pivot causes device failure in long-term. A wear test in the bearing system was conducted to demonstrate the correlation of the load in the bearing system with wear. Results from the wear test showed a direct correlation between load and wear at the lower bearing pivot. In order to reduce load, thus reducing wear, a new stator topology has been proposed. In this topology, a radial stator would replace the axial stator previously used. Another durability test with the new stator has accounted twice the time without failure when compared with the original model. |
| تدمد: | 1525-1594 0160-564X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99c9a24ff14a983d49f0bc0e87c5df77 https://doi.org/10.1111/aor.13587 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....99c9a24ff14a983d49f0bc0e87c5df77 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15251594 0160564X |
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