公开(公告)号：US20240138930A1

公开(公告)日：2024-05-02

申请号：US18495561

申请日：2023-10-26

申请人： Alcon Inc.

发明人： Ashok Burton Tripathi ,  Lu Yin ,  Ramesh Sarangapani

IPC分类号： A61B34/20 ,  A61F2/16 ,  G06T7/00 ,  G06V10/774 ,  G06V10/776 ,  G06V10/94 ,  G06V20/40 ,  G16H10/60

CPC分类号： A61B34/20 ,  A61F2/1664 ,  G06T7/0012 ,  G06V10/774 ,  G06V10/776 ,  G06V10/945 ,  G06V20/41 ,  G16H10/60 ,  A61B2034/2057 ,  A61B2034/2065 ,  A61B2090/0805

摘要： Certain embodiments provide a method of performing ophthalmic surgical procedures. The method includes ingesting and preparing pre-operative data and intra-operative data associated with a patient's eye for further processing. In certain embodiments, the method further includes integrating the pre-operative data and intra-operative data to generate context sensitive data for further processing. The method also includes classifying and annotating the pre-operative data, the intra-operative data, and the context sensitive data. The method also includes extracting one or more actionable inferences from the pre-operative data, the intra-operative data, context sensitive data, and the classified and annotated data. The method further includes triggering, based on the one or more actionable inferences, one or more actions on an imaging system or a surgical system.

公开(公告)号：US20240107135A1

公开(公告)日：2024-03-28

申请号：US18475390

申请日：2023-09-27

申请人： Alcon Inc.

发明人： Lu Yin ,  Vignesh Suresh ,  Ramesh Sarangapani

IPC分类号： H04N23/16 ,  H04N5/265 ,  H04N23/56 ,  H04N23/90

CPC分类号： H04N23/16 ,  H04N5/265 ,  H04N23/56 ,  H04N23/90

摘要： In certain embodiments, a system, a computer-implemented method, and computer-readable medium are disclosed for light efficient fluorescence imaging. The retina is flashed with broadband light and returned light is imaged after passing through one or more filters, such as notch filers, low-pass filters, and high-pass filters. Images may be captured with a single camera or at least two cameras, one capturing transmitted light from the filter and the other capturing returned light. Images may be combined by subtraction and/or addition to obtain a combined image representing light within a passband whereas no passband filters are used during imaging.

公开(公告)号：US20240081975A1

公开(公告)日：2024-03-14

申请号：US18464050

申请日：2023-09-08

申请人： Alcon Inc.

发明人： Vignesh Suresh ,  Lu Yin ,  Ramesh Sarangapani ,  Tobias Jura Rapoport

IPC分类号： A61F2/16 ,  A61B34/10

CPC分类号： A61F2/16 ,  A61B34/10 ,  A61B2034/105 ,  A61B2034/107

摘要： Particular embodiments disclosed herein provide an alignment guide for aligning a toric IOL during surgery. An image with a reference axis is obtained, such as from a digital microscope, and processed, such as using an autoencoder, to label alignment marks on the IOL and possibly other features of the IOL. The label is processed, such as using a logistic regression model, to estimate an IOL axis of the IOL intersecting the alignment marks. An output image is generated from the image that has superimposed thereon guides to a surgeon, such as a line representing the IOL axis, a rotation direction indicator, and a number or other representation of a difference between the reference axis and the IOL axis. Tracking of features of the IOL may be performed across multiple images to predict the location of features not represented in a particular image.

公开(公告)号：US20230334678A1

公开(公告)日：2023-10-19

申请号：US18299029

申请日：2023-04-11

申请人： Alcon Inc.

发明人： Lu Yin ,  Ramesh Sarangapani ,  Vignesh Suresh

IPC分类号： G06T7/33 ,  G06T7/11 ,  G06T7/00 ,  G06T7/37 ,  A61B3/00

CPC分类号： G06T7/337 ,  G06T7/11 ,  G06T7/0014 ,  G06T7/37 ,  A61B3/0025 ,  G06T2207/20084 ,  G06T2207/10101 ,  G06T2207/30041 ,  G06T2207/10012 ,  G06T2207/20081

摘要： In certain embodiments, an ophthalmic system and computer-implemented method for performing ophthalmic image registration are described. The ophthalmic image registration includes obtaining a plurality of images of an eye of a user. Within each image of the plurality of images, a segmented region(s) of the eye within the image is determined based on evaluating the image with a neural network(s), and a set of point features of the eye within the segmented region(s) of the eye is determined based on evaluating the image with the neural network(s). A set of transformation information for transforming at least one of the plurality of images is generated based on performing one or more image processing operations on the set of point features within each image of the plurality of images. At least one of the plurality of images is transformed, based on the set of transformation information.

公开(公告)号：US20230329907A1

公开(公告)日：2023-10-19

申请号：US18299022

申请日：2023-04-11

申请人： Alcon Inc.

发明人： Lu Yin ,  Kongfeng Berger ,  Ramesh Sarangapani ,  Vignesh Suresh

IPC分类号： A61F9/007 ,  A61B3/14 ,  A61B34/20

CPC分类号： A61F9/007 ,  A61B3/14 ,  A61B34/20 ,  A61B2090/372

摘要： Certain embodiments provide a method of performing ophthalmic surgical procedures. The method includes ingesting and preparing pre-operative data and intra-operative data associated with a patient's eye for further processing. In certain embodiments, the method further includes integrating the pre-operative data and intra-operative data to generate context sensitive data for further processing. The method also includes classifying and annotating the pre-operative data, the intra-operative data, and the context sensitive data. The method also includes extracting one or more actionable inferences from the pre-operative data, the intra-operative data, context sensitive data, and the classified and annotated data. The method further includes triggering, based on the one or more actionable inferences, one or more actions on an imaging system or a surgical system.

公开(公告)号：US20210134035A1

公开(公告)日：2021-05-06

申请号：US17077941

申请日：2020-10-22

申请人： Alcon Inc.

发明人： Ramesh Sarangapani ,  Lu Yin

IPC分类号： G06T11/60

摘要： Systems and methods are presented for providing a vision simulation of a patient who has an eye condition. A composite image representing a real-world scene is obtained. The composite image includes multiple image layers, where each image layer represents objects that are at a particular viewing distance in the real-world scene. A first eye model representing the eye optics of the patient is generated. A second eye model representing the eye optics of a viewer is generated. The second eye model is modified by performing a mathematical function. A simulated image representing the vision of the patient is generated by convolving the first eye model and the modified second eye model with the composite image. In some embodiments, a tone mapping algorithm may also be applied to the simulated image to simulate a nighttime scene.