Universal test bench for repeatable multiparametric cochlear implant insertion tests
Introduction: In cochlear implant surgery, the insertion of the electrode array (EA) into the cochlea is critical as its implementation can influence the preservation of residual hearing. Insertion tests are the primary method for basic research on parameters influencing the insertion and help to fu...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-09-01
|
| Series: | Current Directions in Biomedical Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/cdbme-2023-1032 |
| _version_ | 1827780102637748224 |
|---|---|
| author | Böttcher-Rebmann Georg Lange Vera Schell Viktor Cramer Jakob Lenarz Thomas Rau Thomas S. |
| author_facet | Böttcher-Rebmann Georg Lange Vera Schell Viktor Cramer Jakob Lenarz Thomas Rau Thomas S. |
| author_sort | Böttcher-Rebmann Georg |
| collection | DOAJ |
| description | Introduction: In cochlear implant surgery, the insertion of the electrode array (EA) into the cochlea is critical as its implementation can influence the preservation of residual hearing. Insertion tests are the primary method for basic research on parameters influencing the insertion and help to further improve the design of EAs and surgical techniques. With automated insertion devices close to clinical application, a consensus on optimal insertion parameters is needed, which requires reliable testing methods. Moreover, the limited availability of EAs needs to be considered. We propose a test setup that provides high repeatability and flexibility for various research questions. Methods: Design requirements for multiple types of experiments such as variability of insertion speed or trajectory as well as cochlear geometry guided the computer aided design of the test bench. Moreover, repeated insertions with the same EA were supposed to be possible. To evaluate its functionality, insertion tests into a 3D printed cochlea model were performed and recorded. Results: The central components of the test bench are a linear actuator driving the EA and a goniometer changing the orientation of the target - a cochlea model or a specimen. A force sensor can be mounted below the target to measure forces in its frame of reference. The experimental results show high reproducibility of insertion forces for recurring trajectories with a single EA. Conclusion: The test bench enables reproducible insertion tests with a high number of repetitions and reduced EA usage. This allows a more detailed investigation of broadly discussed influences on the insertion such as the insertion speed or trajectory as well as cochlear geometry and can thereby drive future EA development. |
| first_indexed | 2024-03-11T15:01:07Z |
| format | Article |
| id | doaj.art-b30a707f540d4157ae2cf340d363326e |
| institution | Directory Open Access Journal |
| issn | 2364-5504 |
| language | English |
| last_indexed | 2024-03-11T15:01:07Z |
| publishDate | 2023-09-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Current Directions in Biomedical Engineering |
| spelling | doaj.art-b30a707f540d4157ae2cf340d363326e2023-10-30T07:58:11ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042023-09-019112612910.1515/cdbme-2023-1032Universal test bench for repeatable multiparametric cochlear implant insertion testsBöttcher-Rebmann Georg0Lange Vera1Schell Viktor2Cramer Jakob3Lenarz Thomas4Rau Thomas S.5Department for Otorhinolaryngology, Head and Neck Surgery and Cluster of Excellence EXC 2177/1 “Hearing4all”, Hannover Medical School, 30625Hannover, GermanyDepartment for Otorhinolaryngology, Head and Neck Surgery and Cluster of Excellence EXC 2177/1 “Hearing4all”, Hannover Medical School, 30625Hannover, GermanyDepartment for Otorhinolaryngology, Head and Neck Surgery and Cluster of Excellence EXC 2177/1 “Hearing4all”, Hannover Medical School, 30625Hannover, GermanyDepartment for Otorhinolaryngology, Head and Neck Surgery and Cluster of Excellence EXC 2177/1 “Hearing4all”, Hannover Medical School, 30625Hannover, GermanyDepartment for Otorhinolaryngology, Head and Neck Surgery and Cluster of Excellence EXC 2177/1 “Hearing4all”, Hannover Medical School, 30625Hannover, GermanyDepartment for Otorhinolaryngology, Head and Neck Surgery and Cluster of Excellence EXC 2177/1 “Hearing4all”, Hannover Medical School, 30625Hannover, GermanyIntroduction: In cochlear implant surgery, the insertion of the electrode array (EA) into the cochlea is critical as its implementation can influence the preservation of residual hearing. Insertion tests are the primary method for basic research on parameters influencing the insertion and help to further improve the design of EAs and surgical techniques. With automated insertion devices close to clinical application, a consensus on optimal insertion parameters is needed, which requires reliable testing methods. Moreover, the limited availability of EAs needs to be considered. We propose a test setup that provides high repeatability and flexibility for various research questions. Methods: Design requirements for multiple types of experiments such as variability of insertion speed or trajectory as well as cochlear geometry guided the computer aided design of the test bench. Moreover, repeated insertions with the same EA were supposed to be possible. To evaluate its functionality, insertion tests into a 3D printed cochlea model were performed and recorded. Results: The central components of the test bench are a linear actuator driving the EA and a goniometer changing the orientation of the target - a cochlea model or a specimen. A force sensor can be mounted below the target to measure forces in its frame of reference. The experimental results show high reproducibility of insertion forces for recurring trajectories with a single EA. Conclusion: The test bench enables reproducible insertion tests with a high number of repetitions and reduced EA usage. This allows a more detailed investigation of broadly discussed influences on the insertion such as the insertion speed or trajectory as well as cochlear geometry and can thereby drive future EA development.https://doi.org/10.1515/cdbme-2023-1032cochlear implantinsertion test benchinsertion trajectoryinsertion forcesinsertion speed |
| spellingShingle | Böttcher-Rebmann Georg Lange Vera Schell Viktor Cramer Jakob Lenarz Thomas Rau Thomas S. Universal test bench for repeatable multiparametric cochlear implant insertion tests Current Directions in Biomedical Engineering cochlear implant insertion test bench insertion trajectory insertion forces insertion speed |
| title | Universal test bench for repeatable multiparametric cochlear implant insertion tests |
| title_full | Universal test bench for repeatable multiparametric cochlear implant insertion tests |
| title_fullStr | Universal test bench for repeatable multiparametric cochlear implant insertion tests |
| title_full_unstemmed | Universal test bench for repeatable multiparametric cochlear implant insertion tests |
| title_short | Universal test bench for repeatable multiparametric cochlear implant insertion tests |
| title_sort | universal test bench for repeatable multiparametric cochlear implant insertion tests |
| topic | cochlear implant insertion test bench insertion trajectory insertion forces insertion speed |
| url | https://doi.org/10.1515/cdbme-2023-1032 |
| work_keys_str_mv | AT bottcherrebmanngeorg universaltestbenchforrepeatablemultiparametriccochlearimplantinsertiontests AT langevera universaltestbenchforrepeatablemultiparametriccochlearimplantinsertiontests AT schellviktor universaltestbenchforrepeatablemultiparametriccochlearimplantinsertiontests AT cramerjakob universaltestbenchforrepeatablemultiparametriccochlearimplantinsertiontests AT lenarzthomas universaltestbenchforrepeatablemultiparametriccochlearimplantinsertiontests AT rauthomass universaltestbenchforrepeatablemultiparametriccochlearimplantinsertiontests |