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https://doi.org/10.21256/zhaw-22710| Publikationstyp: | Beitrag in wissenschaftlicher Zeitschrift |
| Art der Begutachtung: | Peer review (Publikation) |
| Titel: | Silicon micromachined ultrasonic scalpel for the dissection and coagulation of tissue |
| Autor/-in: | Lockhart, R. Friedrich, F. Briand, D. Margairaz, P. Sandoz, J.-P. Brossard, J. Keppner, H. Olson, W. Dietz, T. Tardy, Y. Meyer, H. Stadelmann, P. Robert, C. Boegli, A. Farine, P.-A. de Rooij, N. F. Burger, J. |
| et. al: | No |
| DOI: | 10.1007/s10544-015-9981-6 10.21256/zhaw-22710 |
| Erschienen in: | Biomedical Microdevices |
| Band(Heft): | 17 |
| Heft: | 4 |
| Seite(n): | 77 |
| Erscheinungsdatum: | 2015 |
| Verlag / Hrsg. Institution: | Springer |
| ISSN: | 1387-2176 1572-8781 |
| Sprache: | Englisch |
| Schlagwörter: | Animal; Chicken; Dissection; Electric impedance; Equipment design; Finite element analysis; Hemostasis; Material testing; Reproducibility of results; Silicon; Swine; Transducer; Ultrasonics; Surgical instrument |
| Fachgebiet (DDC): | 610.28: Biomedizin, Biomedizinische Technik |
| Zusammenfassung: | This work presents a planar, longitudinal mode ultrasonic scalpel microfabricated from monocrystalline silicon wafers. Silicon was selected as the material for the ultrasonic horn due to its high speed of sound and thermal conductivity as well as its low density compared to commonly used titanium based alloys. Combined with a relatively high Young's modulus, a lighter, more efficient design for the ultrasonic scalpel can be implemented which, due to silicon batch manufacturing, can be fabricated at a lower cost. Transverse displacement of the piezoelectric actuators is coupled into the planar silicon structure and amplified by its horn-like geometry. Using finite element modeling and experimental displacement and velocity data as well as cutting tests, key design parameters have been identified that directly influence the power efficiency and robustness of the device as well as its ease of controllability when driven in resonance. Designs in which the full- and half-wave transverse modes of the transducer are matched or not matched to the natural frequencies of the piezoelectric actuators have been evaluated. The performance of the Si micromachined scalpels has been found to be comparable to existing commercial titanium based ultrasonic scalpels used in surgical operations for efficient dissection of tissue as well as coaptation and coagulation of tissue for hemostasis. Tip displacements (peak-to-peak) of the scalpels in the range of 10-50 μm with velocities ranging from 4 to 11 m/s have been achieved. The frequency of operation is in the range of 50-100 kHz depending on the transverse operating mode and the length of the scalpel. The cutting ability of the micromachined scalpels has been successfully demonstrated on chicken tissue. |
| Weitere Angaben: | Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch) |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/22710 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Lizenz gemäss Verlagsvertrag |
| Departement: | School of Engineering |
| Organisationseinheit: | Institut für Mechatronische Systeme (IMS) |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
Dateien zu dieser Ressource:
| Datei | Beschreibung | Größe | Format | |
|---|---|---|---|---|
| 2015_Lockhart-etal_Silicon-micromachined-ultrasonic-scalpel.pdf | 1.43 MB | Adobe PDF |  Öffnen/Anzeigen |
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Lockhart, R., Friedrich, F., Briand, D., Margairaz, P., Sandoz, J.-P., Brossard, J., Keppner, H., Olson, W., Dietz, T., Tardy, Y., Meyer, H., Stadelmann, P., Robert, C., Boegli, A., Farine, P.-A., de Rooij, N. F., & Burger, J. (2015). Silicon micromachined ultrasonic scalpel for the dissection and coagulation of tissue. Biomedical Microdevices, 17(4), 77. https://doi.org/10.1007/s10544-015-9981-6
Lockhart, R. et al. (2015) ‘Silicon micromachined ultrasonic scalpel for the dissection and coagulation of tissue’, Biomedical Microdevices, 17(4), p. 77. Available at: https://doi.org/10.1007/s10544-015-9981-6.
R. Lockhart et al., “Silicon micromachined ultrasonic scalpel for the dissection and coagulation of tissue,” Biomedical Microdevices, vol. 17, no. 4, p. 77, 2015, doi: 10.1007/s10544-015-9981-6.
LOCKHART, R., F. FRIEDRICH, D. BRIAND, P. MARGAIRAZ, J.-P. SANDOZ, J. BROSSARD, H. KEPPNER, W. OLSON, T. DIETZ, Y. TARDY, H. MEYER, P. STADELMANN, C. ROBERT, A. BOEGLI, P.-A. FARINE, N. F. DE ROOIJ und J. BURGER, 2015. Silicon micromachined ultrasonic scalpel for the dissection and coagulation of tissue. Biomedical Microdevices. 2015. Bd. 17, Nr. 4, S. 77. DOI 10.1007/s10544-015-9981-6
Lockhart, R., F. Friedrich, D. Briand, P. Margairaz, J.-P. Sandoz, J. Brossard, H. Keppner, et al. 2015. “Silicon Micromachined Ultrasonic Scalpel for the Dissection and Coagulation of Tissue.” Biomedical Microdevices 17 (4): 77. https://doi.org/10.1007/s10544-015-9981-6.
Lockhart, R., et al. “Silicon Micromachined Ultrasonic Scalpel for the Dissection and Coagulation of Tissue.” Biomedical Microdevices, vol. 17, no. 4, 2015, p. 77, https://doi.org/10.1007/s10544-015-9981-6.
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