Details
| Original language | English |
|---|---|
| Pages (from-to) | 173-181 |
| Number of pages | 9 |
| Journal | International journal of computer assisted radiology and surgery |
| Volume | 5 |
| Issue number | 2 |
| Publication status | Published - Mar 2010 |
Abstract
Purpose: As a substantial part of our concept of a minimally invasive cochlear implant (CI) surgery, we developed an automated insertion tool. Studies on an artificial scala tympani model were performed in order to evaluate force application when using the insertion tool. Methods: Contour electrodes were automatically inserted into a transparent cochlea model in Advance Off-Stylet technique. Occurring forces were measured by the use of a load cell and correlated with observed intracochlear movement of the electrode carriers. Results: Mean insertion forces were measured up to 20 mN comparable to previous studies on temporal bones. The most influencing factor is the implant's 2D curling behaviour in comparison to the 3D helical shape of the cochlea. Conclusion: The study confirms the functionality and reliability of the automated insertion tool for insertion of preformed CI. Improved insertion strategies considering patient-specific anatomy become possible.
Keywords
- Automated insertion tool, Cochlear implant, Force measurement, Intracochlear force, Minimally invasive surgery
ASJC Scopus subject areas
- Medicine(all)
- Surgery
- Engineering(all)
- Biomedical Engineering
- Medicine(all)
- Radiology Nuclear Medicine and imaging
- Computer Science(all)
- Computer Vision and Pattern Recognition
- Medicine(all)
- Health Informatics
- Computer Science(all)
- Computer Science Applications
- Computer Science(all)
- Computer Graphics and Computer-Aided Design
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In: International journal of computer assisted radiology and surgery, Vol. 5, No. 2, 03.2010, p. 173-181.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Automated insertion of preformed cochlear implant electrodes
T2 - Evaluation of curling behaviour and insertion forces on an artificial cochlear model
AU - Rau, Thomas S.
AU - Hussong, Andreas
AU - Leinung, Martin
AU - Lenarz, Thomas
AU - Majdani, Omid
N1 - Funding information: Acknowledgments The authors would like to thank the DFG (German Research Association) for funding the development of the automated insertion tool in the priority programme “Medical Navigation and Robotics” (SPP 1124, MA 4038/1-1, HE-2445/19-1). We would also like to thank KARL STORZ GmbH & Co. KG (Tuttlingen, Germany) as well as Cochlear Ltd. (Sydney, Australia) for supporting our work.
PY - 2010/3
Y1 - 2010/3
N2 - Purpose: As a substantial part of our concept of a minimally invasive cochlear implant (CI) surgery, we developed an automated insertion tool. Studies on an artificial scala tympani model were performed in order to evaluate force application when using the insertion tool. Methods: Contour electrodes were automatically inserted into a transparent cochlea model in Advance Off-Stylet technique. Occurring forces were measured by the use of a load cell and correlated with observed intracochlear movement of the electrode carriers. Results: Mean insertion forces were measured up to 20 mN comparable to previous studies on temporal bones. The most influencing factor is the implant's 2D curling behaviour in comparison to the 3D helical shape of the cochlea. Conclusion: The study confirms the functionality and reliability of the automated insertion tool for insertion of preformed CI. Improved insertion strategies considering patient-specific anatomy become possible.
AB - Purpose: As a substantial part of our concept of a minimally invasive cochlear implant (CI) surgery, we developed an automated insertion tool. Studies on an artificial scala tympani model were performed in order to evaluate force application when using the insertion tool. Methods: Contour electrodes were automatically inserted into a transparent cochlea model in Advance Off-Stylet technique. Occurring forces were measured by the use of a load cell and correlated with observed intracochlear movement of the electrode carriers. Results: Mean insertion forces were measured up to 20 mN comparable to previous studies on temporal bones. The most influencing factor is the implant's 2D curling behaviour in comparison to the 3D helical shape of the cochlea. Conclusion: The study confirms the functionality and reliability of the automated insertion tool for insertion of preformed CI. Improved insertion strategies considering patient-specific anatomy become possible.
KW - Automated insertion tool
KW - Cochlear implant
KW - Force measurement
KW - Intracochlear force
KW - Minimally invasive surgery
UR - http://www.scopus.com/inward/record.url?scp=77649236265&partnerID=8YFLogxK
U2 - 10.1007/s11548-009-0299-9
DO - 10.1007/s11548-009-0299-9
M3 - Article
AN - SCOPUS:77649236265
VL - 5
SP - 173
EP - 181
JO - International journal of computer assisted radiology and surgery
JF - International journal of computer assisted radiology and surgery
SN - 1861-6410
IS - 2
ER -