Patent ID: 9572632
Date: 2017-02-21
CPC Classifications: A61B,A61C,A61N

Claim:
1. Dental irrigation system being configured for irrigation, including debriding, cleaning and decontamination, of open tooth cavities ( 2 ) filled with a liquid ( 3 ), the irrigation system comprising a laser system ( 1 ), wherein the laser system ( 1 ) comprises a laser source ( 4 ) for generating a laser beam ( 5 ) and an optical delivery system ( 6 ) for the laser beam ( 5 ), wherein the delivery system ( 6 ) includes a treatment handpiece ( 7 ) and an exit component ( 8 ), wherein the treatment handpiece ( 7 ) and the exit component ( 8 ) are configured to irradiate a liquid ( 3 ) within the open tooth cavity ( 2 ) with the laser beam ( 5 ), wherein a wavelength of the laser beam ( 5 ) is in a range from above 0.4 μm to 11.0 μm inclusive, wherein the laser system ( 1 ) is adapted to be operated in pulsed operation with pulse sets ( 21 ) containing at least two and maximally twenty individual pulses (p) of a temporally limited pulse length (t p ), wherein the pulse sets ( 21 ) follow one another with a temporal separation (T s ), and wherein the individual pulses (p) follow one another with a pulse repetition rate (f p ), wherein the laser system is adapted to generate at least one vapor bubble ( 18 ) within the liquid ( 3 ) when irradiated with the laser beam ( 5 ), wherein one single pulse (p) causes the at least one vapor bubble ( 18 ) to oscillate between a maximal and a minimal volume with a bubble oscillation frequency (f b ), and wherein the pulse repetition rate (f p ) of the individual pulses (p) within one pulse set ( 21 ) is adjusted relative to the bubble oscillation frequency (f b ) such, that a synchronization between the delivery of the pulses (p) and the bubble oscillation is achieved.