A Miniature 16-element Endoscopic Histotripsy Transducer with Electronically Steerable Focus

Matthew Mallay; Jeffery Woodacre; Taha Take; Emily Napier; Sandra Gorgey; Jeremy Brown

doi:10.1109/ULTSYM.2019.8926086

A Miniature 16-element Endoscopic Histotripsy Transducer with Electronically Steerable Focus

Matthew Mallay, Jeffery Woodacre, Taha Take, Emily Napier, Sandra Gorgey, Jeremy Brown

Medicine

Medicine

Producción científica: Capítulo en Libro/Reporte/Acta de conferencia › Contribución a la conferencia

Resumen

A 5 mm by 5 mm 16-element histotripsy transducer was built and tested using a lens bonded to an air-backed 1-3 piezoelectric composite. The transducer was driven by a custom designed 16 channel pulse generator. Both aluminum and methacrylate photopolymer (resin) lens designs were modelled using a COMSOL FEM model. A resin lens was 3D printed and used to fabricate a transducer array with a focus that could be steered over a greater area than the aluminum lens design. The resin lens transducer had a peak negative pressure trend of 5.7 MPa/100 V. The -3 dB focal length and width were 1.94 mm and 0.30 mm. A pulse sequence cycling through 5 foci spaced within a 1.5 mm square was used to ablate ex vivo rat brain tissue through shock scattering cavitation near the surface.

Idioma original	English
Título de la publicación alojada	2019 IEEE International Ultrasonics Symposium, IUS 2019
Editorial	IEEE Computer Society
Páginas	1797-1800
Número de páginas	4
ISBN (versión digital)	9781728145969
DOI	https://doi.org/10.1109/ULTSYM.2019.8926086
Estado	Published - oct. 2019
Evento	2019 IEEE International Ultrasonics Symposium, IUS 2019 - Glasgow, United Kingdom Duración: oct. 6 2019 → oct. 9 2019

Serie de la publicación

Nombre	IEEE International Ultrasonics Symposium, IUS
Volumen	2019-October
ISSN (versión impresa)	1948-5719
ISSN (versión digital)	1948-5727

Conference

Conference	2019 IEEE International Ultrasonics Symposium, IUS 2019
País/Territorio	United Kingdom
Ciudad	Glasgow
Período	10/6/19 → 10/9/19

Nota bibliográfica

Publisher Copyright:
© 2019 IEEE.

ASJC Scopus Subject Areas

Acoustics and Ultrasonics

Acceder al documento

10.1109/ULTSYM.2019.8926086

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Mallay, M., Woodacre, J., Take, T., Napier, E., Gorgey, S., & Brown, J. (2019). A Miniature 16-element Endoscopic Histotripsy Transducer with Electronically Steerable Focus. En 2019 IEEE International Ultrasonics Symposium, IUS 2019 (pp. 1797-1800). Artículo 8926086 (IEEE International Ultrasonics Symposium, IUS; Vol. 2019-October). IEEE Computer Society. https://doi.org/10.1109/ULTSYM.2019.8926086

A Miniature 16-element Endoscopic Histotripsy Transducer with Electronically Steerable Focus. / Mallay, Matthew; Woodacre, Jeffery; Take, Taha et al.
2019 IEEE International Ultrasonics Symposium, IUS 2019. IEEE Computer Society, 2019. p. 1797-1800 8926086 (IEEE International Ultrasonics Symposium, IUS; Vol. 2019-October).

Producción científica: Capítulo en Libro/Reporte/Acta de conferencia › Contribución a la conferencia

Mallay, M, Woodacre, J, Take, T, Napier, E, Gorgey, S & Brown, J 2019, A Miniature 16-element Endoscopic Histotripsy Transducer with Electronically Steerable Focus. En 2019 IEEE International Ultrasonics Symposium, IUS 2019., 8926086, IEEE International Ultrasonics Symposium, IUS, vol. 2019-October, IEEE Computer Society, pp. 1797-1800, 2019 IEEE International Ultrasonics Symposium, IUS 2019, Glasgow, United Kingdom, 10/6/19. https://doi.org/10.1109/ULTSYM.2019.8926086

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abstract = "A 5 mm by 5 mm 16-element histotripsy transducer was built and tested using a lens bonded to an air-backed 1-3 piezoelectric composite. The transducer was driven by a custom designed 16 channel pulse generator. Both aluminum and methacrylate photopolymer (resin) lens designs were modelled using a COMSOL FEM model. A resin lens was 3D printed and used to fabricate a transducer array with a focus that could be steered over a greater area than the aluminum lens design. The resin lens transducer had a peak negative pressure trend of 5.7 MPa/100 V. The -3 dB focal length and width were 1.94 mm and 0.30 mm. A pulse sequence cycling through 5 foci spaced within a 1.5 mm square was used to ablate ex vivo rat brain tissue through shock scattering cavitation near the surface.",

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A Miniature 16-element Endoscopic Histotripsy Transducer with Electronically Steerable Focus

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Nota bibliográfica

ASJC Scopus Subject Areas

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