Patents Assigned to Fotona d.o.o.
  • Patent number: 11964311
    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.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: April 23, 2024
    Assignee: FOTONA D.O.O.
    Inventors: Nejc Lukac, Matjaz Lukac, Matija Jezersek, Peter Gregorcic
  • Patent number: 11648417
    Abstract: An apparatus for tissue regeneration is provided. The apparatus comprises means for generating at least one laser pulse comprising a wavelength; and means for directing the at least one laser pulse onto a tissue surface of a human or animal body, wherein the means for generating comprises control means to ensure that a sum of the pulse energies of the at least one laser pulse is selected so that the corresponding fluence on the tissue surface heats the tissue surface up to a maximal temperature Tmax between 70° C. and a tissue boiling temperature Tb. Further, the means for generating of the apparatus are adapted so that a delivery time ted of the at least one laser pulse (during which the second half of the pulse energy is delivered) is sufficiently short so that, given the wavelength and thus a corresponding penetration depth ? of the at least one laser pulse, a thermal exposure time texp of the tissue surface is shorter than 900 microseconds.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: May 16, 2023
    Assignee: Fotona d.o.o.
    Inventors: Matjaz Lukac, Franci Bajd, Marko Kazic, Zdenko Vizintin, Tadej Perhavec
  • Patent number: 11648056
    Abstract: A treatment method for non-ablative tissue regeneration includes directing at least one laser pulse having a wavelength onto a tissue surface of a human or animal body, and controlling an energy delivery time ted of the at least one laser pulse, during which the second half of the pulse energy is delivered, to be sufficiently short, so that, given the wavelength and thus a corresponding penetration depth ? of the at least one laser pulse, a thermal exposure time texp of the tissue surface is smaller than 900 microseconds. The thermal exposure time texp of the tissue surface is defined as a time interval in which the temperature of the tissue surface is above To+(Tmax?To)/2, wherein To defines the initial temperature of the tissue surface, before the laser pulse arrives, and Tmax is a maximal temperature of the tissue surface.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: May 16, 2023
    Assignee: Fotona d.o.o.
    Inventors: Matjaz Lukac, Franci Bajd, Marko Kazic, Zdenko Vizintin, Tadej Perhavec
  • Publication number: 20230064019
    Abstract: An apparatus for cooling tissues which are treated with an energy-based device, such as a laser, is disclosed. The apparatus comprises a spray nozzle which generates an atomized liquid spray for the treatment area, wherein the atomized liquid spray is based on a mixture of liquid and gas. Further, the spray nozzle comprises at least one liquid outlet which ejects a liquid, and at least one gas outlet which ejects a gas stream. Besides, the apparatus for cooling comprises at least one delivery means for delivering pressurized gas to the spray nozzle; and a pumping means for the liquid, wherein the pumping means is configured to operate in pulses.
    Type: Application
    Filed: November 8, 2022
    Publication date: March 2, 2023
    Applicant: Fotona d.o.o.
    Inventors: Marko KAZIC, Nejc LUKAC, Blaz TASIC MUC, Matjaz LUKAC
  • Patent number: 11490945
    Abstract: An apparatus for cooling tissues which are treated with an energy-based device, such as a laser, is disclosed. The apparatus comprises a spray nozzle which generates an atomized liquid spray for the treatment area, wherein the atomized liquid spray is based on a mixture of liquid and gas. Further, the spray nozzle comprises at least one liquid outlet which ejects a liquid, and at least one gas outlet which ejects a gas stream. Besides, the apparatus for cooling comprises at least one delivery means for delivering pressurized gas to the spray nozzle; and a pumping means for the liquid, wherein the pumping means is configured to operate in pulses.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: November 8, 2022
    Assignee: Fotona d.o.o.
    Inventors: Marko Kazic, Nejc Lukac, Blaz Tasic Muc, Matjaz Lukac
  • Publication number: 20200086362
    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.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Applicant: FOTONA D.O.O.
    Inventors: Nejc Lukac, Matjaz Lukac, Matija Jezersek, Peter Gregorcic
  • Patent number: 10559938
    Abstract: A Laser system is disclosed which comprises a pump, wherein the laser system is adapted to be operated in pulsed operation so that at least one individual pulse of a temporally limited pulse duration (T0) is generated, wherein the pulse ablates a material such that a debris cloud forms above the ablated material. Further, the pump power of the pump is modulated in such a way that the following three conditions are fulfilled: (1) the intensity of the pulse oscillates between maximum values and minimum values during the pulse duration, wherein the laser pulse comprises a plurality of intensity maxima Imax which occur at times {Ti, i=1, . . . N}; and a plurality of intensity minima Imin which occur at times {tk, k=1, . . .
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: February 11, 2020
    Assignee: Fotona d.o.o.
    Inventors: Marko Marincek, Janko Nendl, Matjaz Mocnik, Lukac Matjaz
  • Patent number: 10518299
    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.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: December 31, 2019
    Assignee: FOTONA D.O.O.
    Inventors: Nejc Lukac, Matjaz Lukac, Matija Jezersek, Peter Gregorcic
  • Patent number: 10454236
    Abstract: A laser system includes a first laser source with a laser resonator for generating a first pulsed laser beam. The resonator has a back mirror, an outcoupling mirror and an active lasing medium in between. The system includes a second laser source for generating a second pulsed laser beam and an optical block. The optical block includes a coupling polarizer and a first polarization rotator. The optical block is movable back and forth between an active position and a passive position. In its active position the optical block is located between the outcoupling mirror and the active lasing medium such that the coupling polarizer couples the second beam into the laser resonator of the first laser source while the first rotator is positioned between the outcoupling mirror and the coupling polarizer. In the active position of the optical block a second polarization rotator is between it and the back mirror.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: October 22, 2019
    Assignee: Fotona d.o.o.
    Inventors: Dejan Skrabelj, Kranjec Jozica, Matjaz Lukac
  • Patent number: 10080908
    Abstract: A laser treatment head guides a laser beam to a target area within a body cavity and includes a laser output element having a deflection element. The laser output element with deflection element is rotatable relative to a guide element about an axis. First and second thread elements mutually engage to cause the deflection element to perform a combined axial and rotational movement relative to the guide element. A control unit and the laser treatment head are configured such that the target area is irradiated by individual pulses (p) in a helical pattern of irradiation spots over a section of the circumference of the body cavity. The control unit is further configured such that reference locations (X) on the target area are irradiated by an individual pulse number (N) of subsequent pulses (p), thereby heating the mucosa tissue within the target area to a predetermined temperature.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: September 25, 2018
    Assignee: Fotona d.o.o.
    Inventors: Marko Kazic, Matjaz Lukac
  • Patent number: 9610125
    Abstract: A laser system for body tissue treatment has laser source, control device, scanner, and handpiece with treatment head transparent to the laser beam. An incoming laser beam section enters the treatment head longitudinally. The treatment head has a conical output surface with a minimum and a maximum surface radius and a half opening angle for total reflection of the incoming beam section. The reflected beam section is refracted radially into an emerging beam section away from the treatment head through the output surface. The incoming beam section has at the output surface a mean diameter that is ?a difference of maximum surface radius and minimum scanning radius. A conical scanning surface as a part of the conical output surface extends from the minimum scanning radius to the maximum surface radius. The control device controls the scanner for scanning the conical scanning surface with the incoming beam section.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: April 4, 2017
    Assignee: Fotona D.O.O.
    Inventors: Marko Kazic, Matjaz Lukac
  • Patent number: 9572632
    Abstract: A dental irrigation system is provided with a laser source for generating a laser beam and an optical delivery system for the laser beam. The laser beam wavelength ranges from 0.4 ?m to 11.0 ?m. The laser system operates in pulsed operation with pulse sets of 2 to 20 individual pulses of temporally limited pulse length. The pulse sets follow one another with temporal separation. The individual pulses follow one another with pulse repetition rate. The laser system generates at least one vapor bubble within the liquid irradiated with the laser beam. A single pulse causes the vapor bubble to oscillate between a maximal and a minimal volume with a bubble oscillation frequency. The pulse repetition rate within one pulse set is adjusted relative to the bubble oscillation frequency such that synchronization between delivery of the pulses and bubble oscillation is achieved.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: February 21, 2017
    Assignee: Fotona d.o.o
    Inventors: Matjaz Lukac, Marko Kazic
  • Publication number: 20170036253
    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.
    Type: Application
    Filed: August 3, 2016
    Publication date: February 9, 2017
    Applicant: Fotona d.o.o
    Inventors: Nejc Lukac, Matjaz Lukac, Matija Jezersek, Peter Gregorcic
  • Patent number: 9254174
    Abstract: For lightening or eradicating pigments in human skin, a first conditioning laser optical energy having first optical parameters selected to obtain an ablative effect on the epidermal layer of human skin is provided. A target area of the human skin is conditioned by directing the first conditioning laser optical energy onto the target area and forming in an epidermal layer of the target area discrete pressure and gas release ducts across the target area. A second treatment laser optical energy is provided that has second optical parameters selected to obtain a lightening or eradicating effect on the pigments located within the human skin and to substantially avoid damaging the epidermal layer of the human skin. The second treatment laser optical energy is directed onto the target area subsequent to conditioning, and the pigments within the human skin are lightenmed or eradicated by the second treatment laser optical energy.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: February 9, 2016
    Assignee: Fotona d.o.o.
    Inventors: Matjaz Lukac, Zdenko Vizintin, Boris Cencic