Carl Zeiss Meditec Ag

Abouzar Eslami

Corinna Maier-Matic

Christine Kochwagner

Falk Hartwig

Thomas Schuhrke

Konstantinos Filippatos

Carolin Schiele

Hessam Roodaki

Stefan Duca

Mhd Hasan Sarhan

Christoph Hauger

Christopher Käsbach

Günter Meckes

Guenter Meckes

Stefan Gräber

Thorsten Tritschler

Thomas Hartkens

A surgical microscope and method, including: capturing a left-side image of a capturing region by a left-side camera and a right-side image of the capturing area by a right-side camera; supplying the captured images to at least one trained machine learning method and/or computer vision evaluation method of a control device of the surgical microscope; and identifying a target object on the basis of the captured images by the at least one trained machine learning method and/or computer vision evaluation method, and optimal microscope parameters and/or a change thereof and/or control commands for an actuator system of the surgical microscope are estimated, control commands for the actuator system of the surgical microscope being generated based on the estimated optimal microscope parameters and/or the estimated change in the microscope parameters, and/or the actuator system being controlled corresponding to the generated and/or estimated control commands.

Method for operating a surgical microscope, and surgical microscope

The invention relates to a treatment apparatus having a modular intraocular lens, which comprises a first part having a haptic and a marking, visible in optical coherence tomography, with known dimensions of said marking and a second part having an optics body and which has a convergence state, in which the second part is in contact with the first part, and a spaced-apart state, in which the second part is spaced apart from the first part, having an optical coherence tomography device, which is configured to record, by means of optical coherence tomography, an OCT cross-sectional image which shows the first part arranged in a capsular bag of an eye and which shows dimensions of the marking in the OCT cross-sectional image, and having an evaluation unit which is configured to create a corrected OCT cross-sectional image by transforming coordinates of the OCT cross-sectional image in such a way that dimensions of the marking in the corrected OCT cross-sectional image are closer to the known dimensions of the marking than the dimensions of the marking in the OCT cross-sectional image.

Treatment apparatus with an optical coherence tomography device, and method for correcting an OCT cross-sectional image

A computer-implemented method and a corresponding system for context-sensitive white balancing for a stereomicroscope are presented. The method comprises recording a first digital image by way of a first camera in a first optical path of the stereomicroscope, and recording a second digital image by way of a second camera in a second optical path of the stereomicroscope. Furthermore, the method comprises determining, by means of a trained machine learning system, the context identified in the images, and determining, by means of the trained machine learning system, camera parameters suitable for controlling color channels of the first and second cameras for white balancing.

Context-sensitive white balancing for surgical microscopes

A method for visualizing a membrane on a retina of an eye includes recording a first image of the retina of the eye, wherein the membrane on the retina of the eye is not stained, recording a second image of the retina of the eye after the membrane on the retina of the eye has been stained, determining a first transformation such that mutually corresponding structures of the retina of the eye are located at mutually corresponding places in the second image and in the first image which was transformed with the first transformation, identifying image regions in the second image, which contain the membrane on the retina, based on the transformed first image and the recorded second image, and displaying the second image such that the identified image regions in the second image are highlighted relative to the surroundings of the identified image regions.

Method for visualizing a membrane on a retina of an eye and surgical microscope for performing the method

A method for improving an OCT image of an object such as the retina of an eye, using optical coherence tomography by an imaging beam path. In order to suppress shadowing effects due to a surgical instrument moved in the imaging beam path, a time series of OCT images is produced. For an OCT image to be corrected, an area of the object lying in the image and shadowed by the instrument is determined. Another earlier OCT image in which the area of the object is not shadowed is searched in the time series. Image information for the area of the object is read from the earlier OCT image. A corrected OCT image is produced by inserting the read-image information into the OCT image to be corrected, wherein in the OCT image to be corrected, the image information replaces the area of the object which is shadowed by the instrument.

Method for correcting an OCT image and combination microscope

An ophthalmologic system comprising and eye tracker and an OCT system. A method of operating the ophthalmologic system comprises: providing data representing a placement of a first B-scan performed on an eye relative to the eye; performing a measurement on the eye using the eye tracker; determining a placement of the eye relative to the ophthalmologic system based on the measurement using the eye tracker; placing the eye relative to a reference placement of the OCT system based on the provided data and the determined placement; performing A-scans on the eye at at least three A-scan positions; determining a placement of a second B-scan relative to the OCT system based on at least one of the at least three A-scans and the provided data such that the second B-scan and the first B-scan have a substantially same placement relative to the eye; and generating a representation of the second B-scan.

Ophthalmologic system and method of operating the same

A treatment apparatus for a subretinal injection into an eye includes a 3D imaging device configured to generate a 3D image of a retina and a choroid of the eye. The apparatus has a planning device for inputting at least one set position for an injection instrument to be used for the injection. The set position is a location indication in the 3D image. The apparatus includes a 2D imaging device to generate a surface image of the retina and supplement the image to form a supplemented image, via the 2D imaging device ascertaining in the surface image at least one location which, in the surface image, corresponds to the at least one set position indicated in the 3D image, and inserting into the surface image at least one mark that corresponds to the ascertained at least one location. A display device displays the supplemented image.

Treatment apparatus for a subretinal injection and method for assisting in a subretinal injection

A surgery system comprises a camera obtaining camera images, an OCT system, a data memory storing geometry data of a surgical tooland a controller configured to identify a first portion of the tool in the camera images by object recognition using the geometry data; to determine, in the field of view, first locations where the tool is located and second locations aside of the tool; to trigger the OCT system to perform depth scans at the first and second locations; to identify a second portionof the tool in the depth scans by object recognition using the geometry data; and to generate a first imagerepresenting a third portionof the tool based on the geometry data and the depth scans.

Surgery system

A system and method for optical coherence elastography of tissue of an eye. The method includes introducing a probe into the eye, the probe including a vibration element, generating time resolved images of the tissue of the eye located posterior the vibration element of the probe by optical coherence tomography, exciting the vibration element to ultrasonic vibrations making the tissue vibrate or oscillate, measuring a displacement of the tissue in the time resolved images, and calculating elasticity values of the tissue from the displacement.

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Munich, Germany

Abouzar Eslami