Title :
Programmed synthesis of liquid shockwaves with piezoelectric high polymer film [therapeutic lithotripsy]
Author :
Häusler, E. ; Krings, T. ; Rech, V.
Author_Institution :
High Speed Phys. Lab., Saarland Univ., Saarbrucken, West Germany
Abstract :
A method for generating liquid waves with arbitrary shape in liquids is described. The method is based on a traveling wave principle. Suitable arrangement and excitation of piezoelectric film sheets and focusing leads to a peak pressure in the focal region between 10 and 50 MPa, depending on the spectral composition of the shock waves. This composition depends on the shape of the exciting electric signals
Keywords :
biological fluid dynamics; patient treatment; shock waves; 10 to 50 MPa; focusing leads; liquid shockwaves; medical therapeutic lithotripsy; peak pressure; piezoelectric high polymer film; programmed synthesis; spectral composition; traveling wave principle; Acoustic pulses; Frequency; Lenses; Medical treatment; Optical films; Piezoelectric films; Polymer films; Shape; Shock waves; Societies;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96378
