| 摘要 |
The invention relates to a cleaning system being configured for cleaning, including fragmentation, debridement, material removal, irrigation, disinfection and decontamination, of cavities (2) filled with a liquid (3). The cleaning system comprises an electromagnetic radiation system and the liquid (3). A treatment handpiece (7) and its exit component (8) are configured to irradiate the liquid (3) within the cavity (2) with the radiation beam, wherein a wavelength of the radiation beam is chosen for significant absorption of the radiation beam in the liquid (3). The electromagnetic radiation system is adapted to generate a first vapor bubble (18) within the liquid (3) by means of a corresponding first pulse (p a ) and a second vapor bubble (18') within the liquid (3) by means of a corresponding second pulse (p b ) at a location different to the location where the first vapor bubble (18) is present at the time of generating the second vapor bubble (18'). The pulse repetition time (Tp) is adjusted such, that an onset time (t 0b ) of the second vapor bubble (18') is within the first contraction phase of the first vapor bubble (18), when the first vapor bubble (18) has contracted from its maximal Volume (V max ) to a size in a range from about 0.7 to about 0.1 of the maximal Volume (V max ). |
