Patents by Inventor Matjaz Lukac
Matjaz Lukac has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11964311Abstract: 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: GrantFiled: November 22, 2019Date of Patent: April 23, 2024Assignee: FOTONA D.O.O.Inventors: Nejc Lukac, Matjaz Lukac, Matija Jezersek, Peter Gregorcic
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Publication number: 20230293233Abstract: 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: ApplicationFiled: April 5, 2023Publication date: September 21, 2023Inventors: Matjaz LUKAC, Franci BAJD, Marko KAZIC, Zdenko VIZINTIN, Tadej PERHAVEC
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Patent number: 11648056Abstract: 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: GrantFiled: January 10, 2020Date of Patent: May 16, 2023Assignee: Fotona d.o.o.Inventors: Matjaz Lukac, Franci Bajd, Marko Kazic, Zdenko Vizintin, Tadej Perhavec
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Patent number: 11648417Abstract: 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: GrantFiled: May 14, 2019Date of Patent: May 16, 2023Assignee: Fotona d.o.o.Inventors: Matjaz Lukac, Franci Bajd, Marko Kazic, Zdenko Vizintin, Tadej Perhavec
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Publication number: 20230064019Abstract: 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: ApplicationFiled: November 8, 2022Publication date: March 2, 2023Applicant: Fotona d.o.o.Inventors: Marko KAZIC, Nejc LUKAC, Blaz TASIC MUC, Matjaz LUKAC
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Patent number: 11490945Abstract: 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: GrantFiled: January 11, 2019Date of Patent: November 8, 2022Assignee: Fotona d.o.o.Inventors: Marko Kazic, Nejc Lukac, Blaz Tasic Muc, Matjaz Lukac
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Publication number: 20220266055Abstract: The present disclosure relates to a method and an apparatus for generating a laser pulse sequence for application to a predetermined target tissue. Means are provided for setting a cumulative fluence Fs of the laser pulse sequence. Means are provided for determining a duration of the laser pulse sequence as a function of the cumulative fluence Fs such that the predetermined target tissue is heated to a final temperature that is within a predetermined range.Type: ApplicationFiled: February 17, 2022Publication date: August 25, 2022Inventors: Matjaz LUKAC, Nejc LUKAC, Blaz TASIC MUC, Anze ZORMAN, Tadej PERHAVEC
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Publication number: 20210361970Abstract: Applicator for ameliorating alopecia, for improving quality, color and density of hair, and/or for improving a condition of a scalp of a person by laser light, comprising means for splitting at least one laser beam into at least two partial laser beams and at least two output means, each adapted to apply at least one of the at least two partial laser beams to the person, wherein the at least two output means are adapted such that hair can be accommodated at least partly in between them.Type: ApplicationFiled: May 20, 2021Publication date: November 25, 2021Inventors: Marko KAZIC, Irena HRELJAC, Matjaz LUKAC
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Publication number: 20210069756Abstract: An apparatus and a method for cleaning a cavity filled with a liquid are disclosed. An apparatus (1) for applying pulses of electromagnetic radiation to a cavity (2) filled with a liquid (3) may comprise a source (4, 4?) for generating a first pulse and a second pulse of electromagnetic radiation and a control unit (22) adapted to control a time between the first pulse and the second pulse as a function of a diameter D and/or a cross-sectional area of the cavity (2).Type: ApplicationFiled: September 10, 2020Publication date: March 11, 2021Inventors: Nejc LUKAC, Matjaz LUKAC, Matija JEZERSEK
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Publication number: 20200170704Abstract: 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: ApplicationFiled: January 10, 2020Publication date: June 4, 2020Inventors: Matjaz LUKAC, Franci BAJD, Marko KAZIC, Zdenko VIZINTIN, Tadej PERHAVEC
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Publication number: 20200086362Abstract: 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: ApplicationFiled: November 22, 2019Publication date: March 19, 2020Applicant: FOTONA D.O.O.Inventors: Nejc Lukac, Matjaz Lukac, Matija Jezersek, Peter Gregorcic
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Patent number: 10518299Abstract: 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: GrantFiled: August 3, 2016Date of Patent: December 31, 2019Assignee: FOTONA D.O.O.Inventors: Nejc Lukac, Matjaz Lukac, Matija Jezersek, Peter Gregorcic
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Publication number: 20190351253Abstract: 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: ApplicationFiled: May 14, 2019Publication date: November 21, 2019Inventors: Matjaz Lukac, Franci Bajd, Marko Kazic, Zdenko Vizintin, Tadej Perhavec
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Patent number: 10454236Abstract: 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: GrantFiled: July 3, 2018Date of Patent: October 22, 2019Assignee: Fotona d.o.o.Inventors: Dejan Skrabelj, Kranjec Jozica, Matjaz Lukac
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Publication number: 20190239938Abstract: 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: ApplicationFiled: January 11, 2019Publication date: August 8, 2019Inventors: Marko KAZIC, Nejc LUKAC, Blaz TASIC MUC, Matjaz LUKAC
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Publication number: 20190006815Abstract: 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: ApplicationFiled: July 3, 2018Publication date: January 3, 2019Inventors: Dejan Skrabelj, Kranjec Jozica, Matjaz Lukac
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Patent number: 10080908Abstract: 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: GrantFiled: June 18, 2015Date of Patent: September 25, 2018Assignee: Fotona d.o.o.Inventors: Marko Kazic, Matjaz Lukac
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Patent number: 9610125Abstract: 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: GrantFiled: June 27, 2014Date of Patent: April 4, 2017Assignee: Fotona D.O.O.Inventors: Marko Kazic, Matjaz Lukac
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Patent number: 9572632Abstract: 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: GrantFiled: February 13, 2015Date of Patent: February 21, 2017Assignee: Fotona d.o.oInventors: Matjaz Lukac, Marko Kazic
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Publication number: 20170036253Abstract: 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: ApplicationFiled: August 3, 2016Publication date: February 9, 2017Applicant: Fotona d.o.oInventors: Nejc Lukac, Matjaz Lukac, Matija Jezersek, Peter Gregorcic