Evaluation of effect of aneurysm model material on coil contact force and catheter movement
To ensure safe coil embolization for cerebral aneurysms, it is important to investigate the contact force between a coil and an aneurysm wall. Therefore, in our previous study, we developed an experimental system for measuring the contact force between a coil and an aneurysm biomodel. However, becau...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2021-09-01
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| Series: | Journal of Biomechanical Science and Engineering |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jbse/17/1/17_21-00261/_pdf/-char/en |
| _version_ | 1811225556757250048 |
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| author | Takuya OISHI Kazuto TAKASHIMA Kiyoshi YOSHINAKA Kaihong YU Makoto OHTA Koji MORI Naoki TOMA |
| author_facet | Takuya OISHI Kazuto TAKASHIMA Kiyoshi YOSHINAKA Kaihong YU Makoto OHTA Koji MORI Naoki TOMA |
| author_sort | Takuya OISHI |
| collection | DOAJ |
| description | To ensure safe coil embolization for cerebral aneurysms, it is important to investigate the contact force between a coil and an aneurysm wall. Therefore, in our previous study, we developed an experimental system for measuring the contact force between a coil and an aneurysm biomodel. However, because the aneurysm model was made of silicone rubber, its physical properties, such as the friction coefficient, differed from those of aneurysms in vivo. Therefore, in this study, we made an aneurysm model using poly (vinyl alcohol) hydrogel (PVA-H) and evaluated the effect of the model material on the contact force. In addition, we acquired images during the experiment and evaluated the behavior of the coil and catheter and the relationship between the catheter movement and the contact force. A commercially available coil was inserted through a catheter into two types of aneurysm models (silicone rubber and PVA-H), and the effects of the model material and the catheter tip position (near dome, at the center, and near neck) were evaluated. The contact force and the total movement of the catheter tip for the PVA-H model were smaller than those for the silicone rubber model. The contact force (total catheter movement) was greater (smaller) when the catheter tip was inserted deeper into the silicone rubber model. These results suggest that the state of contact between the aneurysm and the coil affects the contact force and the catheter movement and that these two values are related. |
| first_indexed | 2024-04-12T09:09:18Z |
| format | Article |
| id | doaj.art-79bc9214a604491f9c2577410c421584 |
| institution | Directory Open Access Journal |
| issn | 1880-9863 |
| language | English |
| last_indexed | 2024-04-12T09:09:18Z |
| publishDate | 2021-09-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Biomechanical Science and Engineering |
| spelling | doaj.art-79bc9214a604491f9c2577410c4215842022-12-22T03:39:00ZengThe Japan Society of Mechanical EngineersJournal of Biomechanical Science and Engineering1880-98632021-09-0117121-0026121-0026110.1299/jbse.21-00261jbseEvaluation of effect of aneurysm model material on coil contact force and catheter movementTakuya OISHI0Kazuto TAKASHIMA1Kiyoshi YOSHINAKA2Kaihong YU3Makoto OHTA4Koji MORI5Naoki TOMA6Graduate School of Life Science and Systems Engineering, Kyushu Institute of TechnologyGraduate School of Life Science and Systems Engineering, Kyushu Institute of TechnologyNational Institute of Advanced Industrial Science and TechnologyInstitute of Fluid Science, Tohoku UniversityInstitute of Fluid Science, Tohoku UniversityGraduate School of Sciences and Technology for Innovation, Yamaguchi UniversityGraduate School of Medicine, Mie UniversityTo ensure safe coil embolization for cerebral aneurysms, it is important to investigate the contact force between a coil and an aneurysm wall. Therefore, in our previous study, we developed an experimental system for measuring the contact force between a coil and an aneurysm biomodel. However, because the aneurysm model was made of silicone rubber, its physical properties, such as the friction coefficient, differed from those of aneurysms in vivo. Therefore, in this study, we made an aneurysm model using poly (vinyl alcohol) hydrogel (PVA-H) and evaluated the effect of the model material on the contact force. In addition, we acquired images during the experiment and evaluated the behavior of the coil and catheter and the relationship between the catheter movement and the contact force. A commercially available coil was inserted through a catheter into two types of aneurysm models (silicone rubber and PVA-H), and the effects of the model material and the catheter tip position (near dome, at the center, and near neck) were evaluated. The contact force and the total movement of the catheter tip for the PVA-H model were smaller than those for the silicone rubber model. The contact force (total catheter movement) was greater (smaller) when the catheter tip was inserted deeper into the silicone rubber model. These results suggest that the state of contact between the aneurysm and the coil affects the contact force and the catheter movement and that these two values are related.https://www.jstage.jst.go.jp/article/jbse/17/1/17_21-00261/_pdf/-char/enendovascular treatmentcerebral aneurysmcoil embolizationcontact forcecatheterphantomfirst coil |
| spellingShingle | Takuya OISHI Kazuto TAKASHIMA Kiyoshi YOSHINAKA Kaihong YU Makoto OHTA Koji MORI Naoki TOMA Evaluation of effect of aneurysm model material on coil contact force and catheter movement Journal of Biomechanical Science and Engineering endovascular treatment cerebral aneurysm coil embolization contact force catheter phantom first coil |
| title | Evaluation of effect of aneurysm model material on coil contact force and catheter movement |
| title_full | Evaluation of effect of aneurysm model material on coil contact force and catheter movement |
| title_fullStr | Evaluation of effect of aneurysm model material on coil contact force and catheter movement |
| title_full_unstemmed | Evaluation of effect of aneurysm model material on coil contact force and catheter movement |
| title_short | Evaluation of effect of aneurysm model material on coil contact force and catheter movement |
| title_sort | evaluation of effect of aneurysm model material on coil contact force and catheter movement |
| topic | endovascular treatment cerebral aneurysm coil embolization contact force catheter phantom first coil |
| url | https://www.jstage.jst.go.jp/article/jbse/17/1/17_21-00261/_pdf/-char/en |
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