Patents by Inventor Dirk Mühlhoff

Dirk Mühlhoff 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).

  • Patent number: 10898381
    Abstract: A method for precise working of material, particularly organic tissue, comprises the step of providing laser pulses with a pulse length between 50 fs and 1 ps and with a pulse frequency from 50 kHz to 1 MHz and with a wavelength between 600 and 2000 nm for acting on the material to be worked. Apparatus, in accordance with the invention, for precise working of material, particularly organic tissue comprising a pulsed laser, wherein the laser has a pulse length between 50 fs and 1 ps and with a pulse frequency of from 50 kHz to 1 MHz is also described.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: January 26, 2021
    Assignee: Carl Zeiss Meditec AG
    Inventors: Mark Bendett, Mark Bischoff, Mario Gerlach, Dirk Mühlhoff
  • Publication number: 20180110655
    Abstract: A method for precise working of material, particularly organic tissue, comprises the step of providing laser pulses with a pulse length between 50 fs and 1 ps and with a pulse frequency from 50 kHz to 1 MHz and with a wavelength between 600 and 2000 nm for acting on the material to be worked. Apparatus, in accordance with the invention, for precise working of material, particularly organic tissue comprising a pulsed laser, wherein the laser has a pulse length between 50 fs and 1 ps and with a pulse frequency of from 50 kHz to 1 MHz is also described.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 26, 2018
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Mark Bendett, Mark Bischoff, Mario Gerlach, Dirk Mühlhoff
  • Patent number: 9844464
    Abstract: A method for precise working of material, particularly organic tissue, comprises the step of providing laser pulses with a pulse length between 50 fs and 1 ps and with a pulse frequency from 50 kHz to 1 MHz and with a wavelength between 600 and 2000 nm for acting on the material to be worked. Apparatus, in accordance with the invention, for precise working of material, particularly organic tissue comprising a pulsed laser, wherein the laser has a pulse length between 50 fs and 1 ps and with a pulse frequency of from 50 kHz to 1 MHz is also described.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: December 19, 2017
    Assignee: Carl Zeiss Meditec AG
    Inventors: Mark Bendett, Mark Bischoff, Mario Gerlach, Dirk Mühlhoff
  • Publication number: 20170020733
    Abstract: A method for precise working of material, particularly organic tissue, comprises the step of providing laser pulses with a pulse length between 50 fs and 1 ps and with a pulse frequency from 50 kHz to 1 MHz and with a wavelength between 600 and 2000 nm for acting on the material to be worked. Apparatus, in accordance with the invention, for precise working of material, particularly organic tissue comprising a pulsed laser, wherein the laser has a pulse length between 50 fs and 1 ps and with a pulse frequency of from 50 kHz to 1 MHz is also described.
    Type: Application
    Filed: April 18, 2016
    Publication date: January 26, 2017
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Mark BENDETT, Mark Bischoff, Mario Gerlach, Dirk Mühlhoff
  • Patent number: 8808279
    Abstract: The invention relates to a device for measuring an optical penetration that is triggered in a tissue underneath the tissue surface by means of therapeutic laser radiation which a laser-surgical device concentrates in a treatment focus located in said tissue. The inventive device is provided with a detection beam path comprising a lens system which couples radiation emanating from the tissue underneath the tissue surface into the detection beam path. A detector device generating a detection signal which indicates the spatial dimension and/or position of the optical penetration in the issue is arranged downstream of the detection beam path.
    Type: Grant
    Filed: August 22, 2003
    Date of Patent: August 19, 2014
    Assignee: Carl Zeiss Meditec AG
    Inventors: Dirk Mühlhoff, Michael Kempe, Markus Strehle, Mario Gerlach, Markus Sticker, Mark Bischoff, Dick Manfred, Michael Bergt
  • Patent number: 8652122
    Abstract: Disclosed is a laser device for machining material, comprising a laser beam source which supplies pulsed laser radiation, and a variable deflection unit that introduces said laser radiation into the material at different, selectable points so as to create optical breakthroughs. The inventive laser device further comprises a pulse-selecting apparatus which modifies selected laser pulses of the pulsed laser radiation regarding at least one optical parameter in such a way that no more optical breakthroughs can be created using the modified laser pulses.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 18, 2014
    Assignee: Carl Zeiss Meditec AG
    Inventors: Mark Bischoff, Dirk Mühlhoff, Mario Gerlach
  • Patent number: 8597281
    Abstract: The invention relates to a method for producing cuts in a transparent material, in particular in the cornea, by creating optical openings in said material by means of laser radiation that is focused in said material, whereby the focal point is displaced in order to produce the cut from a surface grid-type array of optical openings arranged in sequence. The focal point is displaced along a trajectory and optical openings along said trajectory that are adjacent are not produced immediately after one another. In addition, the surface grid-type array of optical openings is constructed from at least two sub-grids, the optical openings of which are processed sequentially grid by grid.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: December 3, 2013
    Assignee: Carl Zeiss Meditec AG
    Inventors: Mark Bischoff, Dirk Mühlhoff, Mario Gerlach, Carsten Lang, Markus Sticker, Michael Bergt
  • Patent number: 8425494
    Abstract: An adapter for mechanically coupling a laser processing device to an object. The adapter has a central region which can be moved into the beam path of the laser processing device and a peripheral region located outside the central region. The beam path extends up to the object along an optical axis. The adapter is fixable to the laser processing device on the one hand and provided so as to contact the object with its central region on the other hand. A fixture is provided at the peripheral region that allows the adapter to be releasably fixed to a receiving part of the laser processing device such that, upon application of a determined pulling force along the optical axis, the The fixture is removable from the receiving part.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: April 23, 2013
    Assignee: Carl Zeiss Meditec AG
    Inventors: Dirk Mühlhoff, Elke Ebert, Karsten Festag, Uwe Wolf
  • Publication number: 20130072917
    Abstract: Improvements in respect of performing cataract surgery, and the result thereof, by application of a laser system. A device for cataract surgery, includes a surgical microscope or stereo microscope and a laser source. A module, consisting of a laser-coupling/deflecting unit, a laser-scan unit, and a focusing unit, can be attached to the surgical microscope or stereo microscope, in which at least one of these units can selectively be introduced between the surgical microscope and eye, and in which the focusing unit can scan a depth-of-focus range of greater than 1 mm.
    Type: Application
    Filed: May 26, 2011
    Publication date: March 21, 2013
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Michael Kaschke, Ludwin Monz, Tobias Damm, Dirk Mühlhoff, Karlheinz Rein, Gregor Stobrawa, Manfred Dick, Martin Kühner, Artur Högele, Matthias Reich, Dieter Grebner
  • Publication number: 20120136342
    Abstract: Disclosed is a laser device for machining material, comprising a laser beam source which supplies pulsed laser radiation, and a variable deflection unit that introduces said laser radiation into the material at different, selectable points so as to create optical breakthroughs. The inventive laser device further comprises a pulse-selecting apparatus which modifies selected laser pulses of the pulsed laser radiation regarding at least one optical parameter in such a way that no more optical breakthroughs can be created using the modified laser pulses.
    Type: Application
    Filed: September 23, 2011
    Publication date: May 31, 2012
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Mark BISCHOFF, Dirk MÜHLHOFF, Mario GERLACH
  • Patent number: 8025659
    Abstract: Disclosed is a laser device for machining material, comprising a laser beam source which supplies pulsed laser radiation, and a variable deflection unit that introduces said laser radiation into the material at different, selectable points so as to create optical breakthroughs. The inventive laser device further comprises a pulse-selecting apparatus which modifies selected laser pulses of the pulsed laser radiation regarding at least one optical parameter in such a way that no more optical breakthroughs can be created using the modified laser pulses.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: September 27, 2011
    Assignee: Carl Zeiss Meditec AG
    Inventors: Mark Bischoff, Dirk Mühlhoff, Mario Gerlach
  • Patent number: 7921852
    Abstract: The invention relates to a method for forming curved sections in a transparent material, especially in a cornea, by producing optical breaks at various points in the material by means of pulsed laser beams focused into the material. The laser beam is deviated in a two-dimensional manner from a deviation point in order to form the section by arranging the optical breaks in a sequence. The two-dimensional deviation occurs such that the areas of the optical opening along a curve, whereon the optical openings are arranged in a sequence, are arranged at a distance in relation to the deviation point according to an angle function which is not linear and which is adapted to the curvature of the section. The areas along the curve adjacent to optical openings inside a specific tolerance range are arranged at an even distance.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: April 12, 2011
    Assignee: Carl Zeiss Meditec AG
    Inventors: Mario Gerlach, Carsten Lang, Dirk Mühlhoff, Markus Sticker, Mark Bischoff, Michael Bergt
  • Publication number: 20100228236
    Abstract: An adapter contact lens to be applied in contact with an anterior corneal surface. The adapter includes a contact glass portion having a corneal contact surface curvature that is flatter than that of the undeformed anterior corneal surface. When the contact glass is applied the cornea deforms assume a deformed state corneal curvature that is parallel to the flatter corneal contact surface curvature. A mount portion circumferentially surrounds the contact glass and defines a suction duct that is structured to secure the adapter to the cornea by negative pressure when it is brought into contact with a surface of the eye surrounding the contact glass portion. The suction duct being partially defined by a peripheral edge of the mount; that extends outwardly away from the mount portion and toward but not intersecting or extending beyond a geometric continuation of the corneal contact surface curvature.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 9, 2010
    Applicant: CARL ZEISS MEDITEC AG
    Inventors: Dirk MÜHLHOFF, Elke EBERT, Karsten FESTAG, Uwe WOLF
  • Patent number: 7692865
    Abstract: An adapter for coupling a laser processing device to an object, said adapter having a central region which can be moved into the beam path of the laser processing device, an illumination beam path through which illumination radiation can be guided for illumination of an object field which can be covered by the central region, and a peripheral region located outside the central region and by which the adapter can be mounted on the object and/or on the laser processing device, wherein the illumination beam path extends in the peripheral region and guides illumination radiation, coupled into the peripheral region, to the object field direct and/or via the central region.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: April 6, 2010
    Assignee: Carl Zeiss Meditec AG
    Inventors: Dirk Mühlhoff, Elke Ebert, Karsten Festag, Uwe Wolf
  • Publication number: 20070237620
    Abstract: What is described is an adapter for mechanically coupling a laser processing device to an object, said adapter comprising having a central region which can be moved into the beam path of the laser processing device, which beam path extends up to the object along an optical axis, and a peripheral region located outside the central region, said adapter being fixable to the laser processing device on the one hand and being provided so as to contact the object with its central region on the other hand, wherein fixing means are provided at the peripheral region, said means allowing the adapter to be releasably fixed to a receiving part of the laser processing device such that, upon application of a determined pulling force along the optical axis, the fixing means are removable from said receiving part.
    Type: Application
    Filed: November 16, 2004
    Publication date: October 11, 2007
    Inventors: Dirk Mühlhoff, Elke Ebert, Karsten Festag, Uwe Wolf
  • Patent number: 6337920
    Abstract: The invention is directed to a laser scanning ophthalmoscope for viewing the ocular fundus of the eye of a patient. A laser source generates a laser beam and a first scanner imparts an oscillatory deflection to the laser beam in a first direction. A second scanner imparts an oscillatory deflection to the laser beam in a second direction and transmits the oscillating laser beam toward the ocular fundus. At least a portion of the light of the laser beam is reflected from the ocular fundus and a detector detects the reflected light. A display displays an image defined by the light reflected from the ocular fundus and a control is connected to the display for selecting a sectional image of the image and the sectional image corresponds to a subregion of the ocular fundus. A drive motor pivotally moves at least one of the first and second scanners and a drive unit controls the drive motor. An interface connects the control to the drive unit.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: January 8, 2002
    Assignee: Carl Zeiss Jena GmbH
    Inventor: Dirk Mühlhoff