Detection of tympanic membrane movement using film patch with integrated strain gauge, assessed by optical coherence tomography: experimental study
| Autor: | Olaf Specht, Christoph Punke, Tino Just, Eva Lankenau, Detlef Behrend, Wolfram Schmidt, Hans Wilhelm Pau, Thorsten Zehlicke, W. Sass |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
medicine.medical_specialty
Tympanic Membrane Optical coherence tomography Materials Testing medicine Cadaver Humans Pliability Strain gauge Titanium Air Pressure medicine.diagnostic_test Tympanic Membrane Perforation business.industry Experimental model Polyethylene Terephthalates Tympanum (architecture) Eustachian Tube General Medicine Equipment Design Surgery medicine.anatomical_structure Membrane Otorhinolaryngology Middle ear sense organs Tomography Gold Stress Mechanical business Tomography Optical Coherence Biomedical engineering |
| Zdroj: | The Journal of laryngology and otology. 125(5) |
| ISSN: | 1748-5460 0022-2151 |
| Popis: | Objective:We report an ex vivo and in vivo experimental study of a device designed to measure tympanic membrane movement under normal and pathological conditions, assessed using optical coherence tomography.Materials and methods:We designed two types of flexible, round film patch with integrated strain gauge, to be attached to the tympanic membrane in order to measure tympanic membrane movement. Tympanic membrane attachment was assessed using optical coherence tomography. The devices were tested experimentally using an ex vivo model with varying middle-ear pressure.Results:Optical coherence tomography reliably assessed attachment of the film patch to the tympanic membrane, before and after middle-ear pressure changes. Strain gauge voltage changes were directly proportional to middle-ear pressure recordings, for low pressure changes. Tympanic membrane perforations smaller than 2 mm could be sealed off with the film patch.Conclusion:Attachment of the film patch with integrated strain gauge to the tympanic membrane was not ideal. Nevertheless, the strain gauge was able to precisely detect small pressure changes within the middle ear, in this experimental model. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|