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1.发明公开公开(公告)号：US20240120094A1
公开(公告)日：2024-04-11
申请号：US18263162
申请日：2022-01-26
发明人： Hendrik BURWINKEL , Holger MATZ , Stefan SAUR , Christoph HAUGER
摘要： A computer-implemented method for determining the refractive power of an intraocular lens includes providing a physical model for determining refractive power and training a machine learning system with clinical ophthalmological training data and associated desired results to form a learning model for determining the refractive power. A loss function for training includes: a first component taking into account clinical ophthalmological training data and associated and desired results and a second component taking into account limitations of the physical model wherein a loss function component value is greater the further a predicted value of the refractive power during the training is from results of the physical model with the same clinical ophthalmological training data as input values. Moreover, the method includes providing ophthalmological data of a patient and predicting the refractive power of the intraocular lens to be used by means of the trained machine learning system.
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公开(公告)号：US20220164027A1
公开(公告)日：2022-05-26
申请号：US17529044
申请日：2021-11-17
发明人： Stefan SAUR , Christoph HAUGER , Christoph SCHAEFF
摘要： The invention relates to a method for operating a visualization system in a surgical application, wherein a registration device of the visualization system provides a video data stream with a first image size as an output, wherein an image excerpt of the video data stream with a second image size that has been reduced in relation to the first image size is transmitted to a head-mounted visualization device via a communications link and is displayed on a display device of the visualization device, wherein a viewing direction of a user is registered by means of a sensor system, and wherein the image excerpt of the video data stream is defined on the basis of the registered viewing direction. Further, the invention relates to a visualization system.
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公开(公告)号：US20220392061A1
公开(公告)日：2022-12-08
申请号：US17780017
申请日：2020-10-14
发明人： Patrick HOYER , Stefan SAUR , Gerald PANITZ
摘要： The invention relates to a method for determining information for distinguishing between tissue fluid cells and tissue cells in a high-resolution image (34) of a tissue area. In the method, images (33A-E) stored temporarily with a low resolution and a high image rate before the high-resolution image (34) is recorded are accessed and the information for distinguishing between tissue fluid cells and tissue cells is obtained from the temporarily stored images (33A-E) with the low resolution and the high image rate.
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公开(公告)号：US20190056582A1
公开(公告)日：2019-02-21
申请号：US16168886
申请日：2018-10-24
发明人： Stefan SAUR , Marco WITZBACH
摘要： A microscope system (1) includes a microscope and a camera (3) for generating and recording image-based information on an area of observation. A storage and evaluation unit (4) is connected to the microscope (2) and the camera (3) for detecting parameter settings of the microscope associated with the image-based information. A display (5) renders visible the digital image of the area of observation, and a control unit (6) is connected to the storage and evaluation unit (4) and to the display (5). The control unit (6) places digital markers for marking observed objects in a digital image of the area of observation and displays the digital markers on the display (5). The storage and evaluation unit (4) selects and stores information on each digital marker so that the marker can be associated at a later point in time with the position of the observed object.
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5.发明公开公开(公告)号：US20240189064A1
公开(公告)日：2024-06-13
申请号：US18525836
申请日：2023-11-30
发明人： Stefan SAUR , Johannes RANGEL
IPC分类号： A61B90/00 , A61B90/30 , H05B47/125
CPC分类号： A61B90/361 , A61B90/30 , H05B47/125 , G06V40/193
摘要： The invention relates to a method for operating a microsurgical visualization system, wherein the microsurgical visualization system comprises at least one camera for capturing a capture region and at least one illumination source for illuminating at least a part of the capture region, wherein a presence of an eye area of a patient in an image captured by means of the at least one camera is identified, wherein a region in the captured image illuminated by the at least one illumination source is identified and/or the illuminated region is determined, and wherein an irradiance is reduced, at least in the identified eye area, by controlling the at least one illumination source if an overlap between the eye area and the illuminated region is ascertained. The invention also relates to a microsurgical visualization system.
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公开(公告)号：US20220160454A1
公开(公告)日：2022-05-26
申请号：US17529041
申请日：2021-11-17
发明人： Stefan SAUR , Christoph HAUGER , Christoph SCHAEFF
摘要： The invention relates to a method for operating an augmented reality observation system in a surgical application, wherein a viewing direction of a user is registered by means of a viewing direction sensor system of an AR observation apparatus, wherein the registered viewing direction is evaluated by means of a control device, and wherein at least one property of at least one controllable light source in the environment is altered by means of the control device by means of a control signal on the basis of the registered viewing direction. Further, the invention relates to an augmented reality observation system for a surgical application.
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公开(公告)号：US20220157306A1
公开(公告)日：2022-05-19
申请号：US17529036
申请日：2021-11-17
发明人： Christian ALBRECHT , Stefan SAUR
摘要： The invention relates to a method for controlling a microscope, wherein a voice information item is captured by means of at least one microphone, wherein, based on the captured voice information item, a command assigned to the voice information item is recognized from a plurality of commands, wherein an operational context, in which the microscope is when the voice information item is captured, is determined based on at least one context information item, wherein at least one microscope action is determined in consideration of the recognized command, and wherein at least one control command is generated to control the microscope to carry out the at least one determined microscope action, and wherein the at least one microscope action is carried out by controlling the microscope by means of the generated at least one control command, wherein the associated command is recognized in consideration of the determined operational context, and/or wherein the at least one microscope action is determined in consideration of the determined operational context. Further, the invention relates to a microscope.
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公开(公告)号：US20200371361A1
公开(公告)日：2020-11-26
申请号：US16990279
申请日：2020-08-11
发明人： Stefan SAUR , Marco WILZBACH , Christopher KÄSBACH
摘要： A screen (3) for an HMD (1) is provided, and may be designed as a display screen or as a projection screen. The screen (3) comprises a layer (19) of a material with a switchable degree of transparency and at least one further switchable layer (17, 21, 23) which, in dependence on the switching state, can assume at least two physical states, the physical states differently influencing at least one optical property of light passing through the switchable layer or reflected by it.
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公开(公告)号：US20230088437A1
公开(公告)日：2023-03-23
申请号：US17909270
申请日：2021-03-01
发明人： Christoph HAUGER , Stefan SAUR , Christoph SCHAEFF
摘要： A head-mounted visualization unit is proposed having an at least partially light-transmissive optical system, wherein the optical system has a first optical channel, which is assigned to a first eye of a user of the head-mounted visualization unit, and a second optical channel, which is assigned to a second eye of the user, wherein the first optical channel is substantially transmissive to optical radiation of a first polarization and substantially opaque to optical radiation of a second polarization, with the first polarization substantially being orthogonal to the second polarization, wherein the second optical channel is substantially transmissive to optical radiation of the second polarization and substantially opaque to optical radiation of the first polarization, wherein at least in the first optical channel a polarizer and a light attenuator are arranged, and wherein the light attenuator is arranged downstream of the polarizer in a direction toward the first eye of the user.
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公开(公告)号：US20230026585A1
公开(公告)日：2023-01-26
申请号：US17871081
申请日：2022-07-22
发明人： Stefan SAUR
摘要： The invention relates to a method and a system for determining a pose of at least one object in an operating theatre, in a reference coordinate system of a pose detection device of a surgical microscope, involving the determination of the pose of the object by way of a movably arranged microscope-external pose detection device in a first coordinate system, the first coordinate system being a coordinate system that is arranged to be stationary relative to the operating theatre, the determination of the pose of the reference coordinate system by the non-stationary microscope-external pose detection device in the first coordinate system, and the transformation of the pose of the object from the first coordinate system into the reference coordinate system of the pose detection device of the surgical microscope.
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