Design, prototype development and pre-clinical validation of a novel instrument with a compliant steerable tip to facilitate endoscopic ear surgery
| Autor: | Lueder A. Kahrs, Adrian L. James, Colin G Leonard, Nichtima Chayaopas, Peter Francis, Kyle W. Eastwood, James M. Drake, Arushri Swarup |
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| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Computer science 0206 medical engineering Biomedical Engineering Ear Middle 02 engineering and technology Suction Endoscopic ear surgery 01 natural sciences medicine Cadaver Animals Humans Minimally Invasive Surgical Procedures Medical physics medicine.diagnostic_test Dissection Goats 010401 analytical chemistry Endoscopy General Medicine Equipment Design 020601 biomedical engineering 0104 chemical sciences Otologic Surgical Procedures human activities |
| Zdroj: | Journal of medical engineeringtechnology. 45(1) |
| ISSN: | 1464-522X |
| Popis: | This work presents the design of a novel compliant steerable tip (CST) instrument to facilitate transcanal (or totally) endoscopic ear surgery (TEES). The evolution of the instrument’s design is shown, where prototypes were evaluated by surgeons and their feedback was used to inform the design changes for the next prototype iteration. The final prototype enables the surgeon to articulate the compliant tip to achieve the desired bending curvature while automatically locking in place and providing dissection and suction capabilities. Pre-clinical validation testing was performed in goat and human cadaver models by two surgeons who successfully removed an allograft from the middle ear. Time and the number of blockages while suctioning saline in both cadaver models were measured and compared with current instruments used during TEES. The CST took significantly less time to suction saline within a flooded middle ear compared to the Panetti suction dissector (PSD) for atticus and underwent less blockages than the PSD for atticus, ear drum and sinus tympani instruments, Wilcoxon Method p |
| Databáze: | OpenAIRE |
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