Naslov
Development and Use of a Neurosurgical Ultrasound Endoscope Probe

Autori
Ivančević, Bojan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the First Congress of Alps Adria Acoustics Association / Čudina, Mirko - Portorož : Fakulteta za Strojništvo, Ljubljana, 2003, 67-74

Skup
First Congress of Alps Adria Acoustics Association

Mjesto i datum
Portorož, Slovenija, 01.09.2003. - 02.09.2003

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ultrasound; surgery; cavitation; probe

Sažetak
Minimally invasive ultrasonic surgery is the most recent field of application of ultrasound in medicine. Due to the principle of ultrasonic surgery (direct cutting, cavitation, fragmentation and thermal damage), the irreversible changes in tissues and organs are reported. The aim of thies study has been to optimize construction of an endoscopic contact ultrasonic probe (ECUP) with respect to some specific technical, medical and operational/ergonomic requirements. On the basis of the theoretical model, the ECUP was constructed and verified through extensive experiments. The ECUP has been realized as a rod-type resonant vibrating system, consisting of a half-wave lenght transducer of piezoceramic material, and a resonant wave-guide in the form of a specially shaped velocity transformer. Special attention has been paid to the electroacoustical characteristics of the transducer as well as of the specially shaped wave guide. Neurosurgical treatments of brain tumors can result with damage to healthy tissue (because of focussing of high-energy ultrasound). In order to avoid this the 2D and 3D simulation of ultrasound field in the human scull was developed. To check the precision of simulation the measurements on real scull were carried out. The ECUP was tested in clinical applications (more then 40 patients were succefully operated).

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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