Fabrication of Rigid Polyurethane Foam Lumbar Spine Model for Surgical Training using Indirect Additive Manufacturing
Lumbar model is an artificial bone that is commonly used in surgical training to simulate working with the human-like bone for the trainer. The common lumbar model is made of rigid polyurethane (PU) foam and is produced using casting. However, the current lumbar model is expensive and has limita...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Universitas Indonesia
2022-12-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/6125 |
| _version_ | 1797974788313972736 |
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| author | Asriyanti Kushendarsyah Saptaji Nisa Khoiriyah Muhammad Satrio Utomo Made Subekti Dwijaya Farid Triawan Muhammad Hanif Nadhif |
| author_facet | Asriyanti Kushendarsyah Saptaji Nisa Khoiriyah Muhammad Satrio Utomo Made Subekti Dwijaya Farid Triawan Muhammad Hanif Nadhif |
| author_sort | Asriyanti |
| collection | DOAJ |
| description | Lumbar model is an artificial bone that is commonly used in
surgical training to simulate working with the human-like bone for the trainer.
The common lumbar model is made of rigid polyurethane (PU) foam and is produced
using casting. However, the current lumbar model is expensive and has
limitations in representing the real human lumbar, especially in geometry,
visuals, and haptics. Therefore, an alternative method of fabricating lumbar
models made of rigid polyurethane for surgical training using indirect additive
manufacturing will be investigated in this paper. The proposed indirect
additive manufacturing is a combination of 3D printing and casting methods. The
main process of this method is started by fabricating a mold made of polyvinyl
alcohol (PVA) using fused deposition modeling (FDM) 3D printing and
subsequently casting PU foam material into the 3D printed PVA mold.
Accordingly, the aim of this study is to find the optimized casting process
parameters, especially for injecting the material into the mold, to achieve a
better quality of lumbar model. The study was conducted using a Design of
Experiment (DoE) Taguchi Orthogonal Array to optimize the casting process. The
geometrical measurements of middle end-plate depth, upper end-plate width,
spinal canal width, spinal canal depth, and lower pedicle length show the error
ranged from 0.14% to 0.85%. The average porosity, measured from the body,
lamina, and spinous, was found to be non-uniform. It is ranged from 19.58% to
21.94% on the middle part and 39.78% to 45.41% on the subsurface of lumbar
model. The density was increased by 64.89% compared to the reference open
molded PU foam. |
| first_indexed | 2024-04-11T04:24:12Z |
| format | Article |
| id | doaj.art-c19834379d344baaa91a1f1c5b918d62 |
| institution | Directory Open Access Journal |
| issn | 2086-9614 2087-2100 |
| language | English |
| last_indexed | 2024-04-11T04:24:12Z |
| publishDate | 2022-12-01 |
| publisher | Universitas Indonesia |
| record_format | Article |
| series | International Journal of Technology |
| spelling | doaj.art-c19834379d344baaa91a1f1c5b918d622022-12-30T02:23:43ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002022-12-011381612162110.14716/ijtech.v13i8.61256125Fabrication of Rigid Polyurethane Foam Lumbar Spine Model for Surgical Training using Indirect Additive ManufacturingAsriyanti0Kushendarsyah Saptaji1Nisa Khoiriyah2Muhammad Satrio Utomo3Made Subekti Dwijaya4Farid Triawan5Muhammad Hanif Nadhif61. Mechanical Engineering Department, Faculty of Engineering and Technology, Sampoerna University, Jl. Raya Pasar Minggu No. Kav. 16, Jakarta 12780 Indonesia, 2. Department of Aerospace and MechanicMechanical Engineering Department, Faculty of Engineering and Technology, Sampoerna University, Jl. Raya Pasar Minggu No.Kav. 16, Jakarta 12780 Indonesia1. Mechanical Engineering Department, Faculty of Engineering and Technology, Sampoerna University, Jl. Raya Pasar Minggu No.Kav. 16, Jakarta 12780 Indonesia, 2. Department of Aerospace and Mechanica1. National Agency for Research and Innovation, Kawasan PUSPIPTEK, Banten 15314 Indonesia, 2. Faculty of Medicine, University of Indonesia, Jakarta 10430 IndonesiaNational Agency for Research and Innovation, Kawasan PUSPIPTEK, Banten 15314 IndonesiaMechanical Engineering Department, Faculty of Engineering and Technology, Sampoerna University, Jl. Raya Pasar Minggu No.Kav. 16, Jakarta 12780 IndonesiaFaculty of Medicine, University of Indonesia, Jakarta 10430 IndonesiaLumbar model is an artificial bone that is commonly used in surgical training to simulate working with the human-like bone for the trainer. The common lumbar model is made of rigid polyurethane (PU) foam and is produced using casting. However, the current lumbar model is expensive and has limitations in representing the real human lumbar, especially in geometry, visuals, and haptics. Therefore, an alternative method of fabricating lumbar models made of rigid polyurethane for surgical training using indirect additive manufacturing will be investigated in this paper. The proposed indirect additive manufacturing is a combination of 3D printing and casting methods. The main process of this method is started by fabricating a mold made of polyvinyl alcohol (PVA) using fused deposition modeling (FDM) 3D printing and subsequently casting PU foam material into the 3D printed PVA mold. Accordingly, the aim of this study is to find the optimized casting process parameters, especially for injecting the material into the mold, to achieve a better quality of lumbar model. The study was conducted using a Design of Experiment (DoE) Taguchi Orthogonal Array to optimize the casting process. The geometrical measurements of middle end-plate depth, upper end-plate width, spinal canal width, spinal canal depth, and lower pedicle length show the error ranged from 0.14% to 0.85%. The average porosity, measured from the body, lamina, and spinous, was found to be non-uniform. It is ranged from 19.58% to 21.94% on the middle part and 39.78% to 45.41% on the subsurface of lumbar model. The density was increased by 64.89% compared to the reference open molded PU foam.https://ijtech.eng.ui.ac.id/article/view/6125indirect additive manufacturinglumbar spine modelrigid polyurethane (pu) foamsurgical trainingsurgical training |
| spellingShingle | Asriyanti Kushendarsyah Saptaji Nisa Khoiriyah Muhammad Satrio Utomo Made Subekti Dwijaya Farid Triawan Muhammad Hanif Nadhif Fabrication of Rigid Polyurethane Foam Lumbar Spine Model for Surgical Training using Indirect Additive Manufacturing International Journal of Technology indirect additive manufacturing lumbar spine model rigid polyurethane (pu) foam surgical trainingsurgical training |
| title | Fabrication of Rigid Polyurethane Foam Lumbar Spine Model for Surgical Training using Indirect Additive Manufacturing |
| title_full | Fabrication of Rigid Polyurethane Foam Lumbar Spine Model for Surgical Training using Indirect Additive Manufacturing |
| title_fullStr | Fabrication of Rigid Polyurethane Foam Lumbar Spine Model for Surgical Training using Indirect Additive Manufacturing |
| title_full_unstemmed | Fabrication of Rigid Polyurethane Foam Lumbar Spine Model for Surgical Training using Indirect Additive Manufacturing |
| title_short | Fabrication of Rigid Polyurethane Foam Lumbar Spine Model for Surgical Training using Indirect Additive Manufacturing |
| title_sort | fabrication of rigid polyurethane foam lumbar spine model for surgical training using indirect additive manufacturing |
| topic | indirect additive manufacturing lumbar spine model rigid polyurethane (pu) foam surgical trainingsurgical training |
| url | https://ijtech.eng.ui.ac.id/article/view/6125 |
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