Patents by Inventor Juergen Kuehnert
Juergen Kuehnert 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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Publication number: 20200179164Abstract: A method of phacoemulsification includes dissecting a lens tissue of an eye into lens fragments, opening an anterior capsule of the lens of the eye, and placing an access incision in the eye using a femto- or picosecond laser. The method further includes subsequently aspirating lens fragments through the access incision. Lens fragments that impede aspiration due to their size are disintegrated using an ablating laser, and the disintegrated fragments are subsequently aspirated.Type: ApplicationFiled: February 14, 2020Publication date: June 11, 2020Inventors: Juergen Kuehnert, Mark Bischoff
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Patent number: 10675183Abstract: A method for creating cuts in a transparent material using optical radiation, the optical radiation being focused onto the material in a focal point and the focal point being shifted along a curve: A simple or double harmonic curve is used when seen at a right angle to a main direction of incidence of the radiation and preferably successively traveled curves do not lie on top of each other.Type: GrantFiled: September 29, 2015Date of Patent: June 9, 2020Assignee: Carl Zeiss Meditec AGInventors: Steffen Kahra, Herrn Jürgen Kühnert, Michael Bergt
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Patent number: 10478342Abstract: An ophthalmologic laser device includes a pulsed laser configured to produce radiation focused along at treatment beam path. A variably adjustable beam deflector unit and a focusing lens system are disposed in the treatment beam path. The deflector unit is configured to focus the radiation in different target volumes. Measuring equipment is configured to determine a shape and position of optical interfaces along a detection beam path. A control unit is configured to control the laser and the deflector unit and to implement steps including determining a shape and position of an interface of a membrane of a capsular bag of an eye located in a treatment area using the measuring equipment, determining coordinates of a target volume such that, on irradiation of the target volume, a pressure wave runs from the target volume to the anterior or posterior membrane, and adjusting the deflector unit to the target determined volume.Type: GrantFiled: July 26, 2012Date of Patent: November 19, 2019Assignee: CARL ZEISS MEDITEC AGInventors: Manfred Dick, Juergen Kuehnert, Matthias Reich
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Apparatus and method for generating cut surfaces in the cornea of an eye for correction of ametropia
Patent number: 9943441Abstract: A method for generating cut surfaces in the cornea of an eye in order to correct ametropia using an apparatus. The method includes providing the apparatus including a laser unit, which focuses pulsed laser radiation into the cornea and moves the focused radiation in the cornea to generate cut surfaces, and a control unit, which controls the laser unit for generating cut surfaces. The method includes forming at least two mutually spaced apart cut surfaces as opening cuts by application of the pulsed laser radiation from the laser unit, each opening cut extending from an anterior corneal surface into the cornea and forming a further cut surface as a relieving cut by application of the pulsed laser radiation from the laser unit, which relieving cut extends from the anterior corneal surface into the cornea. The position and shape of the relieving cut is selected such that the relieving cut contributes to the correction of the ametropia of the eye.Type: GrantFiled: January 31, 2017Date of Patent: April 17, 2018Assignee: Carl Zeiss Meditec AGInventors: Christoph Russmann, Juergen Kuehnert, Wilfried Bissmann, Gregor Stobrawa -
Publication number: 20170266047Abstract: A method for creating cuts in a transparent material using optical radiation, the optical radiation being focused onto the material in a focal point and the focal point being shifted along a curve: A simple or double harmonic curve is used when seen at a right angle to a main direction of incidence of the radiation and preferably successively traveled curves do not lie on top of each other.Type: ApplicationFiled: September 29, 2015Publication date: September 21, 2017Applicant: Carl Zeiss Meditec AGInventors: Steffen KAHRA, Herrn Jürgen KÜHNERT, Michael BERGT
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APPARATUS AND METHOD FOR GENERATING CUT SURFACES IN THE CORNEA OF AN EYE FOR CORRECTION OF AMETROPIA
Publication number: 20170135856Abstract: A method for generating cut surfaces in the cornea of an eye in order to correct ametropia using an apparatus. The method includes providing the apparatus including a laser unit, which focuses pulsed laser radiation into the cornea and moves the focused radiation in the cornea to generate cut surfaces, and a control unit, which controls the laser unit for generating cut surfaces. The method includes forming at least two mutually spaced apart cut surfaces as opening cuts by application of the pulsed laser radiation from the laser unit, each opening cut extending from an anterior corneal surface into the cornea and forming a further cut surface as a relieving cut by application of the pulsed laser radiation from the laser unit, which relieving cut extends from the anterior corneal surface into the cornea. The position and shape of the relieving cut is selected such that the relieving cut contributes to the correction of the ametropia of the eye.Type: ApplicationFiled: January 31, 2017Publication date: May 18, 2017Inventors: Christoph Russmann, Juergen Kuehnert, Wilfried Bissmann, Gregor Stobrawa -
Apparatus and method for generating cut surfaces in the cornea of an eye for correction of ametropia
Patent number: 9572716Abstract: A method for generating cut surfaces in the cornea of an eye in order to correct ametropia using an apparatus. The method includes providing the apparatus including a laser unit, which focuses pulsed laser radiation into the cornea and moves the focused radiation in the cornea to generate cut surfaces, and a control unit, which controls the laser unit for generating cut surfaces. The method includes forming at least two mutually spaced apart cut surfaces as opening cuts by application of the pulsed laser radiation from the laser unit, each opening cut extending from an anterior corneal surface into the cornea and forming a further cut surface as a relieving cut by application of the pulsed laser radiation from the laser unit, which relieving cut extends from the anterior corneal surface into the cornea. The position and shape of the relieving cut is selected such that the relieving cut contributes to the correction of the ametropia of the eye.Type: GrantFiled: February 11, 2015Date of Patent: February 21, 2017Assignee: Carl Zeiss Meditec AGInventors: Christoph Russmann, Juergen Kuehnert, Wilfried Bissmann, Gregor Stobrawa -
APPARATUS AND METHOD FOR GENERATING CUT SURFACES IN THE CORNEA OF AN EYE FOR CORRECTION OF AMETROPIA
Publication number: 20150150722Abstract: A method for generating cut surfaces in the cornea of an eye in order to correct ametropia using an apparatus. The method includes providing the apparatus including a laser unit, which focuses pulsed laser radiation into the cornea and moves the focused radiation in the cornea to generate cut surfaces, and a control unit, which controls the laser unit for generating cut surfaces. The method includes forming at least two mutually spaced apart cut surfaces as opening cuts by application of the pulsed laser radiation from the laser unit, each opening cut extending from an anterior corneal surface into the cornea and forming a further cut surface as a relieving cut by application of the pulsed laser radiation from the laser unit, which relieving cut extends from the anterior corneal surface into the cornea. The position and shape of the relieving cut is selected such that the relieving cut contributes to the correction of the ametropia of the eye.Type: ApplicationFiled: February 11, 2015Publication date: June 4, 2015Inventors: Christoph Russmann, Juergen Kuehnert, Wilfried Bissmann, Gregor Stobrawa -
Apparatus and method for generating cut surfaces in the cornea of an eye for correction of ametropia
Patent number: 8956344Abstract: An apparatus for generating cut surfaces in the cornea of an eye in order to correct ametropia is provided, said apparatus comprising a laser unit, which can focus pulsed laser radiation into the cornea and move it therein in order to generate cut surfaces, and a control unit, which controls the laser unit for generating cut surfaces such that a predetermined lenticle to be removed is separated from the surrounding corneal material in the cornea by at least one cut surface, and that at least two mutually spaced apart cut surfaces are formed as opening cuts, each extending from the lenticle to the anterior corneal surface, the position and shape of the opening cuts being selected such that the opening cuts contribute to the correction of the ametropia of the eye or do not counteract the correction of the ametropia of the eye.Type: GrantFiled: April 25, 2008Date of Patent: February 17, 2015Assignee: Carl Zeiss Meditec AGInventors: Christoph Russmann, Juergen Kuehnert, Wilfried Bissmann, Gregor Stobrawa -
Publication number: 20140194860Abstract: An ophthalmologic laser device includes a pulsed laser configured to produce radiation focused along at treatment beam path. A variably adjustable beam deflector unit and a focusing lens system are disposed in the treatment beam path. The deflector unit is configured to focus the radiation in different target volumes. Measuring equipment is configured to determine a shape and position of optical interfaces along a detection beam path. A control unit is configured to control the laser and the deflector unit and to implement steps including determining a shape and position of an interface of a membrane of a capsular bag of an eye located in a treatment area using the measuring equipment, determining coordinates of a target volume such that, on irradiation of the target volume, a pressure wave runs from the target volume to the anterior or posterior membrane, and adjusting the deflector unit to the target determined volume.Type: ApplicationFiled: July 26, 2012Publication date: July 10, 2014Applicant: CARL ZEISS MEDITEC AGInventors: Manfred Dick, Juergen Kuehnert, Matthias Reich
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Publication number: 20140052113Abstract: An instrument system for phacoemulsification includes a femto- or picosecond laser device configured to dissect a lens of a patient's eye into lens fragments, open an anterior capsule of the lens of the eye, and make an incision in the eyeball so as to provide access to the lens of the eye. The system also includes device for fragmenting and aspirating the lens fragments through the access incision. A monitoring device is provided for monitoring results achieved by the phacoemulsification. A control device is configured to control the femto- or picosecond laser device and the device for fragmenting and aspirating the lens fragments, subject to parameters of the eye to be treated or of given surgical steps.Type: ApplicationFiled: February 26, 2013Publication date: February 20, 2014Applicant: CARL ZEISS MEDITEC AGInventors: Juergen Kuehnert, Mark Bischoff
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Patent number: 8491575Abstract: An apparatus for generating a correcting cut surface in the cornea including a laser unit, which can focus and move pulsed laser radiation; a first contact element; and a control unit, controlling the laser unit which has a standard setting which, when a standard curvature is imposed upon corneal surface by the first contact element, would lead to a standard cut surface. The standard cut surface has a known curvature with respect to a reference surface. The curvature, with respect to the reference surface of the correcting cut surface to be generated deviates from the known curvature of the standard cut surface. The apparatus includes a second contact element adapted to generate the correcting cut surface, which cornea imposes an actual curvature deviating from the standard curvature, thus generating a cut surface using the standard setting results in the correcting cut surface to be generated.Type: GrantFiled: November 14, 2007Date of Patent: July 23, 2013Assignee: Carl Zeiss Meditec AGInventors: Juergen Kuehnert, Martin Wiechmann, Michael Bergt
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Patent number: 7929218Abstract: The invention relates to a variable lens for controlling electromagnetic radiation that interacts with said lens in a controlled manner. The lens includes a container; a first dielectric fluid that is held in the container; a second dielectric fluid that is held in the container, a phase boundary layer between the first and the second fluid. The relative dielectric constant of the first fluid is different from a relative dielectric constant of the second fluid. At least one first electrode; and at least one second electrode is positioned in relation to the first electrode in such a way that an electric current that is applied between the first and the second electrode generates an electric field, which infiltrates the phase boundary layer.Type: GrantFiled: February 7, 2006Date of Patent: April 19, 2011Assignee: Carl Zeiss Meditec AGInventors: Thomas Mohr, Manfred Dick, Juergen Kuehnert
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Publication number: 20110040294Abstract: A method for monitoring the processing of a lens includes recording the lens using a spatial recording system so as to generate image information for the lens; generating an actual three-dimensional image of the lens from the image information on a spatial display unit; and displaying the actual three-dimensional image of the lens together with a predetermined three-dimensional image of at least a portion of an eye on the spatial display unit.Type: ApplicationFiled: August 17, 2010Publication date: February 17, 2011Applicant: CARL ZEISS MEDITEC AGInventors: Manfred DICK, Juergen KUEHNERT, Holger MAEUSEZAHL
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Patent number: 7859684Abstract: A device for shaping objects by removal of material from the surface thereof with a pulsed laser beam and a deflecting device through which the laser bean is guided over the surface of the object. An optical device is provided for changing the distribution of the radiation intensity inside the laser beam cross section. After the passage of the laser beam through this optical device, the radiation intensity has a bell-shaped or Gaussian distribution, or a distribution similar to a bell-shaped or Gaussian distribution, in at least one cross-sectional direction through the laser beam.Type: GrantFiled: May 15, 2009Date of Patent: December 28, 2010Assignee: Carl Zeiss Meditec AGInventors: Claus Goder, Thomas Hollerbach, Juergen Kuehnert, Eckhard Schroeder
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Publication number: 20100049174Abstract: An apparatus for generating a correcting cut surface in the cornea of including a laser unit, which can focus and move pulsed laser radiation; a first contact element; and a control unit, controlling the laser unit which has a standard setting which, when a standard curvature is imposed upon corneal surface by the first contact element, would lead to a standard cut surface. The standard cut surface has a known curvature with respect to a reference surface. The curvature, with respect to the reference surface of the correcting cut surface to be generated deviates from the known curvature of the standard cut surface. The apparatus includes a second contact element adapted to generate the correcting cut surface, which cornea imposes an actual curvature deviating from the standard curvature, thus generating a cut surface using the standard setting results in the correcting cut surface to be generated.Type: ApplicationFiled: November 14, 2007Publication date: February 25, 2010Applicant: CARL ZEISS MEDITEC AGInventors: Juergen Kuehnert, Martin Wiechmann, Michael Bergt
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Publication number: 20090326522Abstract: A device for shaping objects by removal of material from the surface thereof with a pulsed laser beam and a deflecting device through which the laser bean is guided over the surface of the object. An optical device is provided for changing the distribution of the radiation intensity inside the laser beam cross section. After the passage of the laser beam through this optical device, the radiation intensity has a bell-shaped or Gaussian distribution, or a distribution similar to a bell-shaped or Gaussian distribution, in at least one cross-sectional direction through the laser beam.Type: ApplicationFiled: May 15, 2009Publication date: December 31, 2009Applicant: Carl Zeiss Meditec AGInventors: Claus Goder, Thomas Hollerbach, Juergen Kuehnert, Eckhard Schroeder
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Patent number: 7545515Abstract: A device for shaping objects by removal of material from the surface thereof with a pulsed laser beam and a deflecting device through which the laser beam is guided over the surface of the object. An optical device is provided for changing the distribution of the radiation intensity inside the laser beam cross section. After the passage of the laser beam through this optical device, the radiation intensity has a bell-shaped or Gaussian distribution, or a distribution similar to a bell-shaped or Gaussian distribution, in at least one cross-sectional direction through the laser beam.Type: GrantFiled: October 24, 2006Date of Patent: June 9, 2009Assignee: Carl Zeiss Meditec AGInventors: Claus Goder, Thomas Hollerbach, Juergen Kuehnert, Eckhard Schroeder
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Publication number: 20080310031Abstract: The invention relates to a variable lens for controlling electromagnetic radiation that interacts with said lens in a controlled manner. The lens includes a container; a first dielectric fluid that is held in the container; a second dielectric fluid that is held in the container, a phase boundary layer between the first and the second fluid. The relative dielectric constant of the first fluid is different from a relative dielectric constant of the second fluids. At least one first electrode; and at least one second electrode is positioned in relation to the first electrode in such a way that an electric current that is applied between the first and the second electrode generates an electric field, which infiltrates the phase boundary layer.Type: ApplicationFiled: February 7, 2006Publication date: December 18, 2008Applicant: CARL ZEISS MEDITEC AGInventors: Thomas Mohr, Manfred Dick, Juergen Kuehnert
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APPARATUS AND METHOD FOR GENERATING CUT SURFACES IN THE CORNEA OF AN EYE FOR CORRECTION OF AMETROPIA
Publication number: 20080275433Abstract: An apparatus for generating cut surfaces in the cornea of an eye in order to correct ametropia is provided, said apparatus comprising a laser unit, which can focus pulsed laser radiation into the cornea and move it therein in order to generate cut surfaces, and a control unit, which controls the laser unit for generating cut surfaces such that a predetermined lenticle to be removed is separated from the surrounding corneal material in the cornea by at least one cut surface, and that at least two mutually spaced apart cut surfaces are formed as opening cuts, each extending from the lenticle to the anterior corneal surface, the position and shape of the opening cuts being selected such that the opening cuts contribute to the correction of the ametropia of the eye or do not counteract the correction of the ametropia of the eye.Type: ApplicationFiled: April 25, 2008Publication date: November 6, 2008Applicant: CARL ZEISS MEDITEC AGInventors: Christoph Russmann, Juergen Kuehnert, Wilfried Bissmann, Gregor Stobrawa