Patents Assigned to Carl Zeiss Meditec AG
  • Publication number: 20240233942
    Abstract: A computer-implemented method for increasing a training data volume for a machine learning system for determining an initial refractive power value for an intraocular lens to be inserted is described. The method includes measuring a group of ophthalmological biometry data of a patient and determining an initial refractive power value for the intraocular lens to be inserted by a trained machine learning system. The measured ophthalmological biometry data and a postoperative target refraction value are used as input data for the trained machine learning system. The method also includes measuring a postoperative refractive results value, assigning the postoperative refractive results value to the measured ophthalmological biometry data of the patient, and determining an importance indicator value for the new training data record.
    Type: Application
    Filed: October 24, 2023
    Publication date: July 11, 2024
    Applicant: Carl Zeiss Meditec AG
    Inventors: Hendrik Burwinkel, Michael Trost, Nicolas Bensaid, Stefan Saur
  • Patent number: 12029486
    Abstract: A low cost fundus camera uses LED light sources placed adjacent the camera's imaging stop, and thereby eliminates the need for optics for introducing the light source to the camera's optical path. Lens reflex in the pupil relay is avoided by using only reflective optics in the pupil relay. Reflex from the LED is mitigated by actuating each LED separately, one at a time, and capturing a separate image with each actuated LED. Reflex-free regions of each captured image are extracted and combined to create a composite reflex-free image.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: July 9, 2024
    Assignees: CARL ZEISS MEDITEC, INC., CARL ZEISS MEDITEC AG
    Inventors: Jochen Straub, Robert Sprowl, Yuan Liu, Matthew J. Everett
  • Patent number: 12029685
    Abstract: A method for detecting structures within an optical element of an eye and processing the optical element as a function of the detected structures includes acquiring, by a detection device, geometric data of an eye, transferring, by the detection device, the geometric data of the eye to a controller, calculating, by the controller, target coordinates for a processing device including a laser, the processing device being connected to the controller, and applying a beam produced by the laser to the eye according to the target coordinates calculated by the controller so as to process the optical element.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: July 9, 2024
    Assignee: CARL ZEISS MEDITEC AG
    Inventors: Manfred Dick, Matthias Reich, Diego Zimare
  • Patent number: 12025785
    Abstract: A medical-optical observation apparatus is provided, which includes an image recording device with an optical system and an optical field of view, for recording optical signals from an operating region, and a microphone device with an acoustic directional area, for the directed recording of acoustic signals with reference to the operating region, and wherein the acoustic directional area includes the optical field of view.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: July 2, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Christian Albrecht, Stefan Saur
  • Patent number: 12023208
    Abstract: The invention relates to a method for operating a visualization system in a surgical application, wherein at least one image representation of a region to be operated on and/or operated on is captured by means of a capturing device, wherein the at least one image representation is displayed on a main display device, wherein a pose of a visualization device that can be worn on the head relative to a display surface of the main display device is captured by means of a pose sensor system, and wherein at least one three-dimensional augmentation information item corresponding to the at least one image representation displayed is generated and/or provided and is displayed on a display device of the visualization device, wherein the augmentation information item is generated and/or provided in consideration of the captured pose in such a way that the at least one image representation displayed on the main display device is extended into a three-dimensional region by the at least one three-dimensional augmentation in
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: July 2, 2024
    Assignee: CARL ZEISS MEDITEC AG
    Inventors: Stefan Saur, Christoph Hauger, Christoph Schaeff
  • Patent number: 12016771
    Abstract: An intraocular lens has an optic body, a haptic element mounted on the optic body and having a haptic curvature and a plurality of recesses on the side of the haptic element facing the optic body, a first actuator configured to reversibly change the haptic curvature of the haptic element such that the haptic element is moved away from the optic body from a rest position, a brace arm mounted on the optic body and the longitudinal brace arm end which is configured to be provided a recess when the haptic element is in the rest position, and a second actuator configured to reversibly change, with a change in a property of the second actuator, a brace arm curvature of the brace arm such that the recess in which the longitudinal brace arm end is to be provided can be adjusted with the property of the second actuator.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: June 25, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Benjamin Schreiber, Thorben Badur
  • Patent number: 12016798
    Abstract: The claimed embodiments relate to methods for characterizing a laser beam (24) of a laser processing system (30). The method includes a) providing an aperture arrangement (10) with a plurality of apertures (14) in a work plane (300) of the laser processing system (30) such that the apertures (14) extend within the work plane (300). The method also includes b) scanning the laser beam (24) along a scanning direction (200) parallel to the work plane (300) across the aperture arrangement (10) in such a way that the laser beam (24) at least partially sweeps over the apertures (14).
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: June 25, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Christian Deutsch, Gerard Antkowiak, Martin Hacker
  • Patent number: 12011394
    Abstract: Devices and methods of laser surgery of an eye, especially for refractive surgery, preferably for keratoplasty. The invention includes a planning and control unit, a system for laser surgery of an eye and a planning and control method wherein a device coordinate system of the first laser device and a device coordinate system of the characterization device are coupled using registration and measurement data or model data of the lamella can be unambiguously registered to the device coordinate systems, further by a defined edge geometry of the lamella, an ametropia correction during the generation of the lamella and by taking into account the hydration condition of the lamella, as well as methods for surgery.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: June 18, 2024
    Assignees: Carl Zeiss Meditec AG, Resbiomed Technologies OOD
    Inventors: Alexander Angelov Angelov, Yavor Petrov Angelov, Mark Bischoff, Robert Pomraenke
  • Patent number: 12011392
    Abstract: A treatment device for the surgical correction of hyperopia in the eye comprising a laser device controlled by a control device. The laser device separating corneal tissue by applying laser radiation. The control device controls the laser device for emitting the laser radiation into the cornea such that a lenticule-shaped volume is isolated. Removal thereof effects the desired correction. The control device predefines the volume such that a posterior surface and an anterior surface are connected via an edge surface that has a width in projection along the visual axis that is wider than the one which a straight line in the same projection, that is perpendicular at the edge of the posterior or the anterior surface would have relative to the associated surface and connects the anterior surface to the posterior surface or to the perceived extension thereof.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: June 18, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Mark Bischoff, Gregor Stobrawa, Wilfried Bissmann
  • Patent number: 11998272
    Abstract: After OCT scans are acquired, error compensation is be applied anew by identifying motion tracking data that was collected simultaneously with (or closest in time to) each acquired OCT scan. The effects of any previously applied motion tracking information is removed from an OCT scan before applying the new motion tracking data, which may provide higher resolution motion tracking.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: June 4, 2024
    Assignees: Carl Zeiss Meditec, Inc., Carl Zeiss Meditec AG
    Inventors: Luis De Sisternes, Patrick Krawec, Simon Bello, Sophie Kubach
  • Patent number: 11992439
    Abstract: A system for therapy of the eye by treating tissue with therapeutic radiation using nonlinear interaction. A laser device is provided, which delivers the therapeutic radiation. The therapeutic radiation is focussed by a focussing device in an image field, and xy scanners and z scanners shift the focus laterally and longitudinally within a treatment volume. The therapeutic radiation is either a second short pulse radiation or a first short pulse radiation, each of which have a spectral centroid within a wavelength range defined by the short pulse properties. The system is particularly corrected with regard to longitudinal chromatic aberrations and lateral chromatic aberrations such that the spectral characteristic curves of the two aberrations each have a local extreme within the wavelength ranges, and a certain tolerance within the wavelength ranges is not exceeded, therefore the characteristic curves are very shallow.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: May 28, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Thomas Nobis, Marco Hanft, Mark Bischoff
  • Patent number: 11980437
    Abstract: A holding element for a drape for a surgical microscope is provided. The holding element has a holding ring and a recess located in the holding ring for an interface of the surgical microscope. The holding ring has an asymmetrical contour delimiting the recess such that in a condition in which the holding element is fastened to the surgical microscope there is only one possible fastening position of the holding element on the interface of the surgical microscope that corresponds to the contour of the holding ring, in which position an orientation of the holding element relative to the surgical microscope is defined.
    Type: Grant
    Filed: May 27, 2023
    Date of Patent: May 14, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Andreas Raab, Frank König
  • Patent number: 11974912
    Abstract: An injector for inserting an intraocular lens into the capsular bag of an eye has an injector body; a plunger for displacing the lens out of the injector in an insertion direction, with the lens having an optic body with an optical axis and a rear and a front haptic; a rear mechanism for displacing an optic body distant longitudinal end of the rear haptic onto the optic body via a displacement of the plunger; a front mechanism for displacing an optic body distant longitudinal end of the front haptic along a front trajectory having a front component parallel to the optical axis; and a handle operable from outside of the injector and which has a first catch coupled to the plunger to carry along the plunger in the insertion direction via a longitudinal displacement of the handle and has a second catch to carry along the front displacement mechanism.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: May 7, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Martin Kelp, Marco Hoelzel, Hadi Moein
  • Patent number: 11974949
    Abstract: A laser-surgical apparatus includes a laser emitting laser light with a narrowband wavelength distribution, a digital image sensor or a plurality of digital image sensors that separately record(s) different color channels that represent mutually different spectral wavelength distributions with in each case one maximum corresponding to a specific spectral color and produce(s) separate pieces of image information for the individual color channels, and a graphics module for combining the separate pieces of image information into one color image. In addition, it includes a manipulation module for suppressing the laser light in the color image, which makes it possible to electronically manipulate the pieces of image information of the color channel the spectral wavelength distribution of which has the largest overlap with the narrowband wavelength distribution of the laser light before the separate pieces of image information are combined or during the combining of the separate pieces of image information.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: May 7, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Frank Keib, Christian Beder, Peter Reimer
  • Patent number: 11977212
    Abstract: To simplify the optical calibration of an optical observation apparatus, a stand for an optical observation unit including a calibration object arranged directly on the stand in a fixed location is specified. Moreover, an optical observation apparatus, which includes such a stand and an optical observation unit connected to the stand, a method for calibrating such an optical observation apparatus, and a computer program are specified.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: May 7, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Andreas Raab, Jonathan Essig, Dominik Scherer, Christian Voigt, Stefan Saur
  • Publication number: 20240139033
    Abstract: An arrangement for laser treatment of vitreous floaters. The arrangement for laser vitreolysis of an eye includes an OCDR system, a laser system having a deflection unit, optical elements that couple the OCDR system and the laser system, a display unit and a central control and operating unit. The OCDR system is configured to localize the position of a floater along the optical axis of the OCDR system. The laser system is configured to destroy the floaters by application of laser pulses, and the central control and operating unit is configured to focus the laser system onto the position of the floater and to activate it, in particular when the position of the laser focus and the floater match in a sufficient manner. The present invention relates to an arrangement for the gentle, low risk and painless laser treatment of vitreous floaters, which allows a partially or fully automated therapy.
    Type: Application
    Filed: September 8, 2020
    Publication date: May 2, 2024
    Applicant: Carl Zeiss Meditec AG
    Inventors: Martin HACKER, Manfred DICK
  • Publication number: 20240136066
    Abstract: A computer-implemented method for increasing a training data volume for a machine learning system for determining an initial refractive power value for an intraocular lens to be inserted is described. The method includes measuring a group of ophthalmological biometry data of a patient and determining an initial refractive power value for the intraocular lens to be inserted by a trained machine learning system. The measured ophthalmological biometry data and a postoperative target refraction value are used as input data for the trained machine learning system. The method also includes measuring a postoperative refractive results value, assigning the postoperative refractive results value to the measured ophthalmological biometry data of the patient, and determining an importance indicator value for the new training data record.
    Type: Application
    Filed: October 23, 2023
    Publication date: April 25, 2024
    Applicant: Carl Zeiss Meditec AG
    Inventors: Hendrik Burwinkel, Michael Trost, Nicolas Bensaid, Stefan Saur
  • Publication number: 20240127446
    Abstract: System/Method/Device for labelling images in an automated manner to satisfy a performance of a different algorithm and then applying active learning to learn a deep learning model which would enable ‘real-time’ operation of quality assessment and with high accuracy.
    Type: Application
    Filed: February 25, 2022
    Publication date: April 18, 2024
    Applicants: Carl Zeiss Meditec, Inc., Carl Zeiss Meditec AG
    Inventors: Homayoun Bagherinia, Aditya Nair, Niranchana Manivannan, Mary Durbin, Lars Omlor, Gary Lee
  • Patent number: 11950846
    Abstract: A device for determining biometric variables of the eye, as are incorporated in the calculation of intraocular lenses including a multi-point keratometer and an OCT arrangement. The keratometer measurement points are illuminated telecentrically and detected telecentrically and the OCT arrangement is designed as a laterally scanning swept-source system with a detection region detecting the whole eye over the whole axial length thereof. Illumination points are arranged in three rings concentrically around an instrument axis; and the three rings include a first ring, a second ring and a third ring and the illumination points on the first ring and the third ring are rotated in relation to the illumination points on the second ring such that each of the illumination points on the first ring is on a common radial with one of the illumination points on the third ring and each of the illumination points on the second ring is not on the common radial.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: April 9, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Ralf Ebersbach, Martin Hacker, Gerard Antkowiak, Peter Klopfleisch, Ferid Bajramovic, Tobias Bühren, Matthias Reich
  • Patent number: 11953667
    Abstract: A device by which the magnification stages of a magnification selector based on Galilean telescope systems can be adjusted by a motor. The magnification selector has a sensor that transmits the currently magnification stage to a control unit; in the control unit, an assignment of the magnification stages present on the magnification selector to a sequence of the magnification stages, organized based on size, is stored. For the user, there are operating elements connected to the control unit for selecting a magnification stage. In order to set the magnification stage selected by the user via the operating elements, the magnification selector has an actuator, which is connected to the control unit to receive appropriate control signals. Although provided in particular for slit lamps and surgical microscopes having eyepieces, the solution can also be applied in other ophthalmological devices or devices from other technical fields.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 9, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: David Golz, Dietrich Martin, Ingo Koschmieder