Incidence of cavitation in the fragmentation process of extracorporeal shock wave lithotriptors

Autor:	G. Pittomvils, Jean-Pierre Lafaut, G. Delacrétaz, K. Rink, R. Boving
Rok vydání:	1994
Předmět:	Shock wave Materials science Optical fiber Physics and Astronomy (miscellaneous) Acoustics medicine.medical_treatment Extracorporeal shock wave Extracorporeal shock wave lithotripsy law.invention Nonlinear acoustics Fragmentation (mass spectrometry) law Cavitation Stress sensing medicine
Zdroj:	Applied Physics Letters. 64:2596-2598
ISSN:	1077-3118 0003-6951
Popis:	The fragmentation mechanism occurring in extracorporeal shock wave lithotripsy (ESWL) is investigated using a fiber optic stress sensing technique. With our technique, we demonstrate that cavitation is a major cause of fragmentation in ESWL procedures. When a target is placed in the operating area of the lithotriptor, two shock waves are detected. The first detected shock wave corresponds to the incoming shock wave generated by the lithotriptor. The second shock wave, detected some hundreds of microseconds later, is generated in situ. It results from the collapse of a cavitation bubble, formed by the reflection of the incoming shock wave at the target boundary. This cavitation induced shock wave generates the largest stress in the target area according to our stress sensing measurements.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2cb8aa5ab2f565a307d4b09e5d458108 https://doi.org/10.1063/1.111537 Zobrazit plný text záznamu