Carl Zeiss Meditec Ag

Christian Voigt

Christoph Hauger

Stefan Saur

Marco Wilzbach

Delbert Peter Andrews

Dominik Litsch

Markus Philipp

Holger Matz

Nancy Hecker-denschlag

Christine Hanel

Nils Haverkamp

Markus Seesselberg

Joachim Steffen

Roland Guckler

Helge Jess

Matthias Hillenbrand

Martin Fanenbruck

Jonathan Essig

Dominik Scherer

Andreas Raab

Steffen Siegler

Steffen Urban

Carolin Klusmann

Franziska Mathis-ullrich

Max Riedel

Christian Marzi

Fritz Hengerer

A method for operating a microscopy system is provided. The microscopy system includes a microscope and a stand supporting the microscope. The microscope is arranged on the stand. The stand includes at least one drive device configured to move the microscope. The method includes determining a specified value or a specified change of a modulable inertia of the microscopy system based on a state variable and/or based on user information and/or based on a force acting on the microscopy system and/or based on a current instance of application. The at least one drive device is controlled such that a divergence between the specified value and an actual value of the modulable inertia is reduced or the modulable inertia is varied in accordance with the specified change.

Method for operating a surgical microscopy system, and surgical microscopy system

A medical apparatus for determining a relative spatial position of a planar marker is provided. The medical apparatus has an illumination device configured to illuminate the marker, a detector configured to detect light steered from the marker to the detector, and an evaluation device configured to determine a direction of a tilt of the marker from an analysis of a first value detected by the detector while the marker is illuminated from a first direction and a second value detected by the detector while the marker is illuminated from a second direction.

Medical apparatus for determining the relative spatial position of a planar marker

A microscopy system includes a microscope, a stand configured to mount the microscope and including a drive device configured to move the microscope, a detection device configured to detect a spatial position of a target fastened to a body part or to an instrument, wherein the position detection device includes the target with at least one marker element and an image capture device configured to optically capture the target. The microscopy system further includes at least one control device configured to operate the microscopy system according to the detected position of the target, wherein the position detection device is configured to determine the position of the target by evaluating a two-dimensional image of the image capture device. In addition, a method for operating the microscopy system is provided.

Microscopy system and method for operating the microscopy system

An eye surgery surgical system includes a visualization device for visualizing the position of at least one trocar point for a trocar on the sclera of a patient's eye. The trocar serves to introduce a surgical instrument configured for surgical interventions on the fundus of the patient's eye into the patient's eye. The eye surgery surgical system also includes a computer unit which is configured to provide the position of the at least one trocar point to the visualization device. Here, the computer unit contains a trocar point computation routine configured to calculate the position of the at least one trocar point from the location of at least one surgical site in a model of the patient's eye and from geometric data relating to at least one surgical instrument introducible into the patient's eye through the trocar.

Eye surgery surgical system and computer implemented method for providing the position of at least one trocar point

A visualization system includes an observation apparatus having a first image recording device to observe an operation region with a first observation plane, and an endoscope having a probe and a second image recording device to observe the operation region with a second observation plane. A display device represents a first image recorded by the first image recording device in a first orientation and a second image recorded by the second image recording device in a second orientation. The visualization system further includes a tracking system to determine an orientation of the endoscope relative to the observation apparatus and a controller configured to transform the second image based on the orientation of the endoscope relative to the observation apparatus.

Visualization system comprising an observation apparatus and an endoscope

A method for operating a microscopy system and to a microscopy system are provided. A pivot point is defined, wherein the microscopy system is operated such that a microscope of the microscopy system moves at a constant distance around the pivot point, wherein a reference surface is determined, wherein an intersection of an optical axis of the microscope and the reference surface is determined as the pivot point, wherein the pose of the reference surface is defined in a focal position-independent reference coordinate system and the pivot point is determined as the intersection of the optical axis with the thus defined reference surface in the reference coordinate system.

Method for operating a microscopy system, and microscopy system

Disclosed is a method for determining the three-dimensional positions of points in a target region on a patient in a reference coordinate system of a surgical visualization system. The method includes generating at least one light marking in the target region. Using at least one imaging unit to capture at least one image representation containing the at least one light marking. Determining a three-dimensional position of the at least one light marking in the reference coordinate system proceeding from image coordinates of the light marking in the captured image representation, with the known pose of the at least one light source and/or the light path and the known pose of the at least one imaging unit being taken into account. Repeating measures multiple times, with a position of the at least one light marking within the target region being changed each time, and providing the determined three-dimensional positions.

Method for determining the three-dimensional positions of points in a target region on a patient in a reference coordinate system of a surgical visualization system and surgical visualization system

A microinstrument system comprises: a microinstrument, having at least one integrated optical fiber which has a distal end facing the object to be observed; a recording apparatus, to which light from the object to be observed can be supplied for recording image data with the aid of the at least one optical fiber; a determining device, which is designed to determine the positions of the distal end of the at least one optical fiber at the recording times of the particular image data; wherein a data-processing device, connected to the recording apparatus in order to receive the image data; is connected to the determining device in order to receive the position data; and is designed to compile the image data with the aid of the position data to form a two-dimensional or three-dimensional image.

Microinstrument system and method for recording an image by fibre-optic scanning, and computer-implemented method for generating an image

An eye surgery surgical system includes a device for displaying a relative position of a section of a surgery object in a 3D reconstruction of a region of an eye, a device for continuously providing at least two data records relating to at least partly overlapping portions of the region of the eye and of the section of the surgery object to a computer, a computer program for continuously ascertaining the relative position of the section of the surgery object and continuously ascertaining the 3D reconstruction of the eye from the data records provided. The program includes a first routine for continuously ascertaining the relative position of the section of the surgery object and the 3D reconstruction of the region of the eye from the data records provided via a registration method and a second routine for adapting the registration method based on a criterion.

Eye surgery surgical system having an OCT device and computer program and computer-implemented method for continuously ascertaining a relative position of a surgery object

The invention relates to an arrangementwith an OCT devicefor scanning an object region volumearranged in an object regionwith an OCT scanning beam, comprising an itemwhich has a sectionthat is arrangeable in the object regionand is localizable in the object region volumeby means of the OCT device, and having a computing unitconnected to the OCT deviceand having a computer program for determining a 3-D reconstruction of the object region volumeand determining the location of the portion of the objectin the object region volumeby processing OCT scan information obtained with the OCT deviceby scanning the object region volume. According to the invention, the computer program has a calculation routine for determining a target area in the 3-D reconstruction of the object region volume, which routine determines a reference variable for the objectfor the target area. The computer program contains a path planning routine that uses a criterion to calculate an optimal path for objectto the target spatial position, the criterion being a shadow measure that quantifies the occurrence of shadows caused by objectin the calculated 3-D reconstruction. The invention also relates to a computer program and a method for determining a 3-D reconstruction of an object region volumein an object region

Assembly comprising an OCT device for ascertaining a 3D reconstruction of an object region volume, computer program, and computer-implemented method for same

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.

Stand for an optical observation unit, optical observation apparatus, method for calibrating an optical observation apparatus, and computer program

A method for calibrating an object includes determining a position and an alignment of the object in a reference coordinate system, determining the position of at least three measurement spots by at least one capture apparatus, determining a target spot having a fixed spatial relationship with the measurement spots, determining a spatial relationship between the target spot and a tracking spot located on the object by virtue of the tracking spot being positioned at a calibration spot, and determining the spatial location of the calibration spot by a sensor.

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Abtsgmuend, Germany

Christian Voigt