Nuzulistina, Elvin (2023) Pengaruh Jumlah, Dimensi, dan Geometri Manik Magnetik terhadap Gaya Ekspansi dan Kontraksi Magnetik pada Magnetic Sphincter Augmentation (MSA) untuk Penanganan Gastroesophageal Reflux Disease (GERD). Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Gastroesophageal reflux disease (GERD) adalah terjadinya refluks atau naiknya isi gaster ke esofagus, saluran pernapasan bahkan rongga mulut akibat penurunan tonus lower esophageal sphincter (LES) tidak dapat menutup sempurna. Magnetic sphincter augmentation (MSA) merupakan salah satu penanganan pembedahan pada GERD yang terbuat dari cincin manik-manik titanium dengan inti magnetik yang mengelilingi esofagus distal untuk mendukung LES mencegah refluks. Pengujian gaya magnetik dilakukan secara simulasi menggunakan ANSYS Product 2019 R3 dan pembuatan model menggunakan Autodesk Inventor Professional 2023. Pengujian dilakukan dengan membandingkan jumlah N35 manik magnetik 10, 12, 14, dan 16 buah serta membandingkan ukuran diameter luar manik magnetik 0,5 kali dan 2 kali dari ukuran normal. Hasil simulasi gaya magnetik dengan enclosure box memiliki hasil yang lebih konsisten dan relevan, walaupun besar gaya magnetiknya belum sesuai dengan nilai acuan. Gaya ekspansi dan kontraksi magnetik rata-rata meningkat sebesar 0,02 N dan 0,04 N seiring dengan bertambahnya 2 manik magnetik. Rata-rata gaya ekspansi magnetik 0,5 kali, satu kali dan dua kali ukuran normal antara lain 0,05 N, 0,19 N, dan 0,25 N. Rata-rata gaya kontraksi magnetik 0,5 kali, satu kali dan dua kali ukuran normal antara lain 0,05 N, 0,28 N dan 0,29 N. Semakin banyak jumlah dan besar ukuran magnet maka semakin besar pula gaya magnetik yang dihasilkan.
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Gastroesophageal reflux disease (GERD) is the occurrence of reflux or rising gastric contents into the esophagus, respiratory tract and even the oral cavity due to decreased lower esophageal sphincter (LES) tone which cannot close completely. Magnetic sphincter augmentation (MSA) is a treatment for GERD which is made of a ring of titanium beads with a magnetic core that surrounds the distal esophagus to support the LES to prevent reflux. The type force test was carried out by simulation using ANSYS Product 2019 R3 and the manufacturing model used Autodesk Inventor Professional 2023. The test was carried out by comparing the number of N35 magnetic beads 10, 12, 14 and 16 pieces and comparing the outer diameter of the magnetic beads 0.5 times and 2 times the normal size. The magnetic force simulation results with the enclosure box have more consistent and relevant results, even though the magnitude of the magnetic force does not match the reference value. The average magnetic expansion and contraction forces increased by 0.02 N and 0.04 N with the addition of 2 magnetic beads. The average magnetic expansion force is 0.5 times, once and twice the normal size, namely 0.05 N, 0.19 N, and 0.25 N. The average magnetic contraction force is 0.5 times, once and twice the normal size, including 0.05 N, 0.28 N and 0.29 N. The greater the number and size of the magnets, the greater the magnetic force produced.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | LES, GERD, MSA, simulasi, manik magnetik, gaya magnetik |
| Subjects: | Q Science > QC Physics > QC765 Magnetic materials R Medicine > R Medicine (General) R Medicine > RC Internal medicine T Technology > T Technology (General) > T57.62 Simulation |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 27101-(S2) Master Thesis |
| Depositing User: | Elvin Nuzulistina |
| Date Deposited: | 14 Aug 2023 04:08 |
| Last Modified: | 14 Aug 2023 04:08 |
| URI: | http://repository.its.ac.id/id/eprint/103357 |
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