Title :
Physics of ultrasonic surgery using tissue fragmentation
Author :
Cimino, W.W. ; Bond, L.J.
Author_Institution :
Valleylab Inc., Boulder, CO, USA
Abstract :
The mechanism of interaction for the ultrasonic surgical aspirator is poorly understood. A model for the primary mechanism for tissue fragmentation is presented. This involves the horn-tip impact and other mechanical forces, operating in combination with hydrodynamic forces applied to the tissue on the forward stroke in each cycle. No evidence of cavitation in tissue was observed
Keywords :
biological effects of acoustic radiation; biomedical ultrasonics; hydrodynamics; radiation pressure; radiation therapy; surgery; ultrasonic effects; cavitation; forward stroke; horn-tip impact; hydrodynamic forces; mechanical forces; primary mechanism; tissue fragmentation; ultrasonic surgery; ultrasonic surgical aspirator; Acoustic devices; Arteries; Biological tissues; Bonding; Frequency; Hydrodynamics; Instruments; Physics; Piezoelectric transducers; Surgery;
Conference_Titel :
Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2940-6
DOI :
10.1109/ULTSYM.1995.495860
