Feasibility of Parylene C for encapsulating piezoelectric actuators in active medical implants
- Parylene C is well-known as an encapsulation material for medical implants. Within the approach of miniaturization and automatization of a bone distractor, piezoelectric actuators were encapsulated with Parylene C. The stretchability of the polymer was investigated with respect to the encapsulation functionality of piezoelectric chips. We determined a linear yield strain of 1% of approximately 12-μm-thick Parylene C foil. Parylene C encapsulation withstands the mechanical stress of a minimum of 5×105 duty cycles by continuous actuation. The experiments demonstrate that elongation of the encapsulation on piezoelectric actuators and thus the elongation of Parylene C up to 0.8 mm are feasible.
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| Document Type: | Article (peer-reviewed) |
|---|---|
| Author: | Alina Kohler, Felix BlendingerORCiDGND, Sonja Müller, Ulrich MeschederORCiDGND, Volker BucherORCiDGND |
| URN: | https://urn:nbn:de:bsz:fn1-opus4-100585 |
| DOI: | https://doi.org/10.3389/fmedt.2023.1211423 |
| ISSN: | 2673-3129 |
| Parent Title (German): | Frontiers in Medical Technology |
| Language: | English |
| Year of Completion: | 2023 |
| Release Date: | 2023/11/23 |
| Tag: | Active implant; Encapsulation; Parylene C; Piezoelectric actuator; Stretchability |
| Volume: | 5.2023 |
| Article Number: | 1211423 |
| Page Number: | 6 |
| Open-Access-Status: | Open Access |
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| Licence (German): |  Creative Commons - CC BY - Namensnennung 4.0 International |