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1.发明公开公开(公告)号：US20240027180A1
公开(公告)日：2024-01-25
申请号：US18354096
申请日：2023-07-18
Applicant: Alcon Inc.
Inventor： Wei Wei , Parisa Rabbani , Sahar Hosseinzadeh Kassani , Qiang Li , Lance Noller
IPC: G01B9/02055 , A61B3/10 , A61B90/20 , G01B9/02091
CPC classification number: G01B9/02072 , A61B3/102 , A61B90/20 , G01B9/02091
Abstract: An imaging system includes a housing assembly having a head unit configured to be at least partially directed towards a target site. An optical coherence tomography (OCT) module and a visualization module are located in the housing assembly and configured to respectively obtain OCT data and visualization data of the target site. The system includes a controller configured to generate a scanning pattern for a region of calibration selected in a calibration target. OCT data of the region of calibration is synchronously acquired. The controller is configured to obtain a projected two-dimensional OCT image of the region of calibration based on the OCT data, as an inverse mean-intensity projection. The controller is configured to register the projected two-dimensional OCT image to a corresponding view extracted from the visualization data, via a cascaded image registration process having a coarse registration stage and a fine registration stage.
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公开(公告)号：US20220095909A1
公开(公告)日：2022-03-31
申请号：US17477682
申请日：2021-09-17
Applicant: Alcon Inc.
Inventor： Steven T. Charles , Sahar Hosseinzadeh Kassani
Abstract: The systems and methods described herein provide improved techniques for displaying imaging markers for verifying biometry. A method includes receiving an indication to initiate a first optical coherence tomography (OCT) scanning of an eye; initiating, based on the received indication, the first OCT scanning of the eye; generating, based on the first OCT scanning, a first OCT image of the eye; detecting, based on the first OCT image, a retinal pigment epithelium (RPE) and a fovea in the eye; based on the detecting, causing a first enhanced OCT image to be displayed to a user, the first enhanced OCT image displaying: a first virtual marker segmenting at least a portion of the detected RPE, and a second virtual marker, where the second virtual marker visually identifies a location of the detected fovea, and where the second virtual marker is a radial line through the location of the detected fovea.
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3.发明申请公开(公告)号：US20250090015A1
公开(公告)日：2025-03-20
申请号：US18828214
申请日：2024-09-09
Applicant: Alcon Inc.
Inventor： Sahar Hosseinzadeh Kassani , Parisa Rabbani , Marcia Ong , Lingxiao Yang
Abstract: A system of visualizing a target site in an eye, using a polarization sensitive optical coherence tomography (PS-OCT) device, includes a controller having at least one processor and at least one non-transitory, tangible memory on which instructions are recorded. The target site is one or more vitreous opacities in the vitreous humor of the eye. The controller is configured to receive PS-OCT data and determine at least one parameter corresponding to birefringence properties of collagen fibrils in the vitreous humor based on the PS-OCT data. The at least one parameter includes respective spacing of the collagen fibrils. The controller is configured to determine a respective location of the one or more vitreous opacities when the at least one parameter is outside a predefined range and generate a control signal adapted for guiding a treatment beam at the respective location of the one or more vitreous opacities.
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公开(公告)号：US20230021386A1
公开(公告)日：2023-01-26
申请号：US17938616
申请日：2022-10-06
Applicant: Alcon Inc.
Inventor： Muhammad K. Al-Qaisi , Tomas Sedlacek , Joseph T. Traynor , Antonije M. Radojevic , Todd Schernig , Sahar Hosseinzadeh Kassani
IPC: A61B3/10 , G01B9/02015 , G01B9/02
Abstract: An Optical Coherence Tomography receiver may include prisms, polarizing beam splitters, reflectors, lenses, and a photodetector array arranged in a compact package. Sample and reference beams are combined into an interference beam and split in two. The two resulting interference beams are then split into two polarization sates each. The optical path lengths for both pairs of interference beams with the same polarization state are equal or nearly equal.
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公开(公告)号：US20200163546A1
公开(公告)日：2020-05-28
申请号：US16691697
申请日：2019-11-22
Applicant: Alcon Inc.
Inventor： Muhammad K. Al-Qaisi , Tomas Sedlacek , Joseph T. Traynor , Antonije M. Radojevic , Todd Schernig , Sahar Hosseinzadeh Kassani
Abstract: An Optical Coherence Tomography receiver may include prisms, polarizing beam splitters, reflectors, lenses, and a photodetector array arranged in a compact package. Sample and reference beams are combined into an interference beam and split in two. The two resulting interference beams are then split into two polarization sates each. The optical path lengths for both pairs of interference beams with the same polarization state are equal or nearly equal.
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Patent Agency Ranking
公开(公告)号：US20250143563A1
公开(公告)日：2025-05-08
申请号：US19018234
申请日：2025-01-13
Applicant: Alcon Inc.
Inventor： Steven T. Charles , Sahar Hosseinzadeh Kassani
Abstract: The systems and methods described herein provide improved techniques for displaying imaging markers for verifying biometry. A method includes receiving an indication to initiate a first optical coherence tomography (OCT) scanning of an eye; initiating, based on the received indication, the first OCT scanning of the eye; generating, based on the first OCT scanning, a first OCT image of the eye; detecting, based on the first OCT image, a retinal pigment epithelium (RPE) and a fovea in the eye; based on the detecting, causing a first enhanced OCT image to be displayed to a user, the first enhanced OCT image displaying: a first virtual marker segmenting at least a portion of the detected RPE, and a second virtual marker, where the second virtual marker visually identifies a location of the detected fovea, and where the second virtual marker is a radial line through the location of the detected fovea.
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公开(公告)号：US11490804B2
公开(公告)日：2022-11-08
申请号：US16691697
申请日：2019-11-22
Applicant: Alcon Inc.
Inventor： Muhammad K Al-Qaisi , Tomas Sedlacek , Joseph T. Traynor , Antonije M. Radojevic , Todd Schernig , Sahar Hosseinzadeh Kassani
IPC: G01B9/02 , A61B3/10 , G01B9/02015
Abstract: An Optical Coherence Tomography receiver may include prisms, polarizing beam splitters, reflectors, lenses, and a photodetector array arranged in a compact package. Sample and reference beams are combined into an interference beam and split in two. The two resulting interference beams are then split into two polarization sates each. The optical path lengths for both pairs of interference beams with the same polarization state are equal or nearly equal.
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公开(公告)号：US20220148187A1
公开(公告)日：2022-05-12
申请号：US17453559
申请日：2021-11-04
Applicant: Alcon Inc.
Inventor： Parisa Rabbani , Sahar Hosseinzadeh Kassani
Abstract: The systems and methods described herein provide improved techniques for segmenting corneal epithelium layer. A method includes receiving an optical coherence tomography (OCT) image of an eye; generating, based on the OCT image, a binarized image of the eye; generating, based on the binarized image of the eye and the OCT image, a binary mask of a cornea of the eye; segmenting, based on the binary mask of the cornea of the eye, an anterior cornea of the eye on the OCT image; generating, based on the OCT image and the segmented anterior cornea of the eye, a binary mask for an epithelium layer of the eye; segmenting, based on the binary mask for the epithelium layer of the eye, a Bowman's layer in the cornea of the eye on the OCT image; and causing the segmented anterior cornea and the segmented Bowman's layer data to be used for generation of an epithelium map.
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公开(公告)号：US12226155B2
公开(公告)日：2025-02-18
申请号：US17477682
申请日：2021-09-17
Applicant: Alcon Inc.
Inventor： Steven T. Charles , Sahar Hosseinzadeh Kassani
Abstract: The systems and methods described herein provide improved techniques for displaying imaging markers for verifying biometry. A method includes receiving an indication to initiate a first optical coherence tomography (OCT) scanning of an eye; initiating, based on the received indication, the first OCT scanning of the eye; generating, based on the first OCT scanning, a first OCT image of the eye; detecting, based on the first OCT image, a retinal pigment epithelium (RPE) and a fovea in the eye; based on the detecting, causing a first enhanced OCT image to be displayed to a user, the first enhanced OCT image displaying: a first virtual marker segmenting at least a portion of the detected RPE, and a second virtual marker, where the second virtual marker visually identifies a location of the detected fovea, and where the second virtual marker is a radial line through the location of the detected fovea.
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公开(公告)号：US12211211B2
公开(公告)日：2025-01-28
申请号：US17453559
申请日：2021-11-04
Applicant: Alcon Inc.
Inventor： Parisa Rabbani , Sahar Hosseinzadeh Kassani
Abstract: The techniques described herein provide improved techniques for segmenting corneal epithelium layer. A method includes receiving an optical coherence tomography (OCT) image of an eye; generating, based on the OCT image, a binarized image of the eye; generating, based on the binarized image of the eye and the OCT image, a binary mask of a cornea of the eye; segmenting, based on the binary mask of the cornea of the eye, an anterior cornea of the eye on the OCT image; generating, based on the OCT image and the segmented anterior cornea, a binary mask for an epithelium layer of the eye; segmenting, based on the binary mask for the epithelium layer of the eye, a Bowman's layer in the cornea of the eye on the OCT image; and causing the segmented anterior cornea and the segmented Bowman's layer data to be used for generation of an epithelium map.
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