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

Résultat de recherche: Conference contribution

Résumé

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.

Langue d'origine	English
Titre de la publication principale	2019 IEEE International Ultrasonics Symposium, IUS 2019
Maison d'édition	IEEE Computer Society
Pages	1797-1800
Nombre de pages	4
ISBN (électronique)	9781728145969
DOI	https://doi.org/10.1109/ULTSYM.2019.8926086
Statut de publication	Published - oct. 2019
Événement	2019 IEEE International Ultrasonics Symposium, IUS 2019 - Glasgow, United Kingdom Durée: oct. 6 2019 → oct. 9 2019

Séries de publication

Prénom	IEEE International Ultrasonics Symposium, IUS
Volume	2019-October
ISSN (imprimé)	1948-5719
ISSN (électronique)	1948-5727

Conference

Conference	2019 IEEE International Ultrasonics Symposium, IUS 2019
Pays/Territoire	United Kingdom
Ville	Glasgow
Période	10/6/19 → 10/9/19

Note bibliographique

Publisher Copyright:
© 2019 IEEE.

ASJC Scopus Subject Areas

Acoustics and Ultrasonics

Accès au document

10.1109/ULTSYM.2019.8926086

Autres fichiers et liens

Citer

Mallay, M., Woodacre, J., Take, T., Napier, E., Gorgey, S., & Brown, J. (2019). A Miniature 16-element Endoscopic Histotripsy Transducer with Electronically Steerable Focus. Dans 2019 IEEE International Ultrasonics Symposium, IUS 2019 (pp. 1797-1800). Article 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).

Résultat de recherche: Conference contribution

Mallay, M, Woodacre, J, Take, T, Napier, E, Gorgey, S & Brown, J 2019, A Miniature 16-element Endoscopic Histotripsy Transducer with Electronically Steerable Focus. dans 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

Résumé

Séries de publication

Conference

Note bibliographique

ASJC Scopus Subject Areas

Accès au document

Autres fichiers et liens

Empreinte numérique

Citer