Cleaning system and method for operating the cleaning system
First Claim
1. A method for cleaning of cavities filled with a liquid using an electromagnetic radiation system, wherein the electromagnetic radiation system comprises a radiation source for generating a radiation beam and an optical delivery system for delivering the radiation beam, wherein the delivery system includes a treatment handpiece and an exit component, and wherein the method comprises the following steps:
- using the treatment handpiece and the exit component for irradiating the liquid within the cavity with the radiation beam,choosing a wavelength of the radiation beam for significant absorption of the radiation beam in the liquid,operating the electromagnetic radiation system in pulsed operation with at least one pulse set containing at least two individual pulses, wherein a first pulse of the pulses is followed by a second pulse of the pulses with a pulse repetition time,generating a first vapor bubble within the liquid by means of the corresponding first pulse such, that the first vapor bubble oscillates in an expansion phase from a minimal volume to a maximal volume and in a subsequent contraction phase from a maximal volume to a minimal volume,generating a second vapor bubble within the liquid by means of the corresponding second pulse at a location different to the location where the first vapor bubble is present at the time of generating the second vapor bubble,adjusting the pulse repetition time such, that an onset time of the second vapor bubble is within the first contraction phase of the first vapor bubble, when the first vapor bubble has contracted from its maximal volume to a size in a range from about 0.7 to about 0.1 of the maximal volume.
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Abstract
The application relates to a cleaning system configured for cleaning of cavities filled with a liquid, including fragmentation, debridement, material removal, irrigation, disinfection, and decontamination. The cleaning system includes an electromagnetic radiation system and a liquid. A treatment handpiece irradiates the liquid within a cavity with a radiation beam, producing a first vapor bubble using first pulse, and, at a different location, a second vapor bubble using a second pulse. The pulse repetition time is adjusted to ensure efficacy, for example such that an onset time of the second vapor bubble is within the first contraction phase of the first vapor bubble, when the first vapor bubble has contracted from its maximal volume to a size in a range from about 0.7 to about 0.1 of the maximal volume.
33 Citations
24 Claims
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1. A method for cleaning of cavities filled with a liquid using an electromagnetic radiation system, wherein the electromagnetic radiation system comprises a radiation source for generating a radiation beam and an optical delivery system for delivering the radiation beam, wherein the delivery system includes a treatment handpiece and an exit component, and wherein the method comprises the following steps:
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using the treatment handpiece and the exit component for irradiating the liquid within the cavity with the radiation beam, choosing a wavelength of the radiation beam for significant absorption of the radiation beam in the liquid, operating the electromagnetic radiation system in pulsed operation with at least one pulse set containing at least two individual pulses, wherein a first pulse of the pulses is followed by a second pulse of the pulses with a pulse repetition time, generating a first vapor bubble within the liquid by means of the corresponding first pulse such, that the first vapor bubble oscillates in an expansion phase from a minimal volume to a maximal volume and in a subsequent contraction phase from a maximal volume to a minimal volume, generating a second vapor bubble within the liquid by means of the corresponding second pulse at a location different to the location where the first vapor bubble is present at the time of generating the second vapor bubble, adjusting the pulse repetition time such, that an onset time of the second vapor bubble is within the first contraction phase of the first vapor bubble, when the first vapor bubble has contracted from its maximal volume to a size in a range from about 0.7 to about 0.1 of the maximal volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A cleaning system configured for cleaning cavities filled with a liquid, the cleaning system comprising an electromagnetic radiation system and the liquid, wherein the electromagnetic radiation system comprises a radiation source for generating a radiation beam and an optical delivery system for delivering the radiation beam, wherein the delivery system includes a treatment handpiece and an exit component, wherein the treatment handpiece and the exit component are configured to irradiate the liquid within the cavity with the radiation beam, wherein a wavelength of the radiation beam is chosen for significant absorption of the radiation beam in the liquid, wherein the electromagnetic radiation system is adapted to be operated in pulsed operation with at least one pulse set containing at least two individual pulses, wherein a first pulse of the pulses is followed by a second pulse of the pulses with a pulse repetition time, wherein the electromagnetic radiation system is adapted to generate a first vapor bubble within the liquid by means of the corresponding first pulse such, that the first vapor bubble oscillates in an expansion phase from a minimal volume to a maximal volume and in a subsequent contraction phase from a maximal volume to a minimal volume, wherein the electromagnetic radiation system is adapted to generate a second vapor bubble within the liquid by means of the corresponding second pulse at a location different to the location where the first vapor bubble is present at the time of generating the second vapor bubble, and wherein the pulse repetition time is adjusted such, that an onset time of the second vapor bubble is within the first contraction phase of the first vapor bubble, when the first vapor bubble has contracted from its maximal volume to a size in a range from about 0.7 to about 0.1 of the maximal volume.
Specification