-
公开(公告)号：US20240112333A1
公开(公告)日：2024-04-04
申请号：US18475396
申请日：2023-09-27
Applicant: Alcon Inc.
Inventor： Qing Xiang , John Park , Ying Zhu , Jonathan Che-Pin Chen
CPC classification number: G06T7/0012 , G06T1/0007 , G06T2207/30041
Abstract: In certain embodiments, a system, a computer-implemented method, and computer-readable medium are disclosed for enhanced ophthalmic visualization. A plurality of images corresponding to different portions of the electromagnetic spectrum are obtained and combined, such as by pixel-wise subtraction to obtain a combined image. The images may be weighted with weights selected to enhance visualization of features, such as layers of the retina or features corresponding to pathologies. The combined image may be processed, such as by a machine learning model, to extract features.
-
2.发明公开公开(公告)号：US20230190098A1
公开(公告)日：2023-06-22
申请号：US18065425
申请日：2022-12-13
Applicant: Alcon Inc.
Inventor： Ashok Burton Tripathi , John Park , Qing Xiang
CPC classification number: A61B3/14 , G01J3/2823
Abstract: In certain embodiments, a system for obtaining ophthalmic information includes an illumination device having an optical fiber; a hyperspectral illumination source; a controller; a modulation device; and an imaging device. The modulation device is configured to receive first source light generated from the hyperspectral illumination source. The first source light includes multiple wavelengths. The modulation device is also configured to modulate each of the wavelengths with a different frequency to generate second source light having multiple frequency modulated wavelengths, and transmit the second source light to an optical fiber, which emits the second source light to contact an eye tissue. The imaging device selects a first frequency associated with a first frequency modulated wavelength and captures light returning from the eye tissue as a result of the first frequency modulated wavelength contacting the eye tissue. The controller determines parameter(s) of the eye tissue based on the return light.
-
公开(公告)号：US20230157885A1
公开(公告)日：2023-05-25
申请号：US18054448
申请日：2022-11-10
Applicant: Alcon Inc.
Inventor： Edward A. DeHoog , John Park
IPC: A61F9/008
CPC classification number: A61F9/00825 , A61F2009/00897 , A61F2009/00874 , A61F2009/00851
Abstract: In certain embodiments, an ophthalmic laser surgical system for imaging and treating a target in an eye includes a digital micromirror device (DMD) confocal microscope, a laser device, and a computer. The DMD confocal microscope generates of images of the eye and includes a light source, a DMD device, and an image sensor. The light source provides a microscope imaging beam. The DMD device directs the microscope imaging beam along an imaging path towards the eye, receives the microscope imaging beam reflected from the eye, and rejects light of the reflected microscope imaging beam that is not from an image plane to scan the microscope imaging beam. The image sensor detects the scanned microscope imaging beam to generate the images of the eye. The laser device directs a laser beam along a laser beam path towards the target in the eye.
-
公开(公告)号：US20230157881A1
公开(公告)日：2023-05-25
申请号：US18049986
申请日：2022-10-26
Applicant: Alcon Inc.
Inventor： John Park , Edward A. DeHoog
IPC: A61F9/008
CPC classification number: A61F9/008 , A61F2009/00851 , A61F2009/00897
Abstract: In certain embodiments, an ophthalmic laser surgical system for imaging and treating a target in an eye includes an imaging system. The imaging system includes a scanning laser ophthalmoscope (SLO) device and an optical coherence tomography (OCT) device. The SLO device generates SLO images, and the OCT device generates OCT images. The SLO device and the OCT device share a scanning system and a light detector. The scanning system scans SLO and OCT imaging beams within the eye. The light detector detects the SLO and OCT imaging beams reflected from the eye and generates SLO and OCT signals in response to detecting the imaging beams.
-
公开(公告)号：US20250025341A1
公开(公告)日：2025-01-23
申请号：US18909382
申请日：2024-10-08
Applicant: Alcon Inc.
Inventor： John Park , Qing Xiang , Ravi Durvasula , Ronald T. Smith
Abstract: In certain embodiments, an optical system for obtaining surgical information includes a probe housing a first optical fiber, a light source, a photoanalyzer, and an optical circulator optically coupled to each of the first optical fiber, the light source, and the photoanalyzer. The optical circulator has a first port configured to receive source light generated from the light source, a second port configured to transmit the source light from the first port to the first optical fiber, and a third port configured to transmit return light in the first optical fiber from the second port to the photoanalyzer. The first optical fiber is configured to emit at least a portion of the source light in the first optical fiber from the probe to contact a body structure, and collect light returning from the body structure as a result of the portion of the source light contacting the body structure.
-
Patent Agency Ranking
公开(公告)号：US20240115345A1
公开(公告)日：2024-04-11
申请号：US18480612
申请日：2023-10-04
Applicant: Alcon Inc.
Inventor： John Park , Ronald T. Smith
CPC classification number: A61B90/30 , A61B3/13 , G02B21/0012 , G02B21/06 , G02B21/361 , A61B2090/306
Abstract: A surgical microscope is configured to capture images of an eye of a patient and defines an optical axis. An illumination source is configured to emit a plurality of beams onto the eye of the patient at a plurality of angles relative to the optical axis. A controller is coupled to the surgical microscope and the illumination source, the controller configured to independently control values for illumination parameters for each beam of the plurality of beams to facilitate imaging of the eye of the patient. The illumination parameters may compensate for reflections from the iris, offset of the eye relative to the optical axis, and reflections of ambient light. The illumination parameters may be controlled subject to inputs received from a surgeon or other user.
-
公开(公告)号：US20230181364A1
公开(公告)日：2023-06-15
申请号：US18062639
申请日：2022-12-07
Applicant: Alcon Inc.
Inventor： John Park , Qing Xiang , Ravi Durvasula , Ronald T. Smith
CPC classification number: A61F9/008 , A61F9/00763 , A61F2009/00897 , A61F2009/00844
Abstract: In certain embodiments, an optical system for obtaining surgical information includes a probe housing a first optical fiber, a light source, a photoanalyzer, and an optical circulator optically coupled to each of the first optical fiber, the light source, and the photoanalyzer. The optical circulator has a first port configured to receive source light generated from the light source, a second port configured to transmit the source light from the first port to the first optical fiber, and a third port configured to transmit return light in the first optical fiber from the second port to the photoanalyzer. The first optical fiber is configured to emit at least a portion of the source light in the first optical fiber from the probe to contact a body structure, and collect light returning from the body structure as a result of the portion of the source light contacting the body structure.
-
8.发明公开公开(公告)号：US20240164850A1
公开(公告)日：2024-05-23
申请号：US18466335
申请日：2023-09-13
Applicant: Alcon Inc.
Inventor： Maximiliano Ramirez Luna , Hillary Schatz , John Park
CPC classification number: A61B34/20 , A61F2/1662 , G06T7/13 , A61B2034/2051 , A61B2034/2057 , A61B2090/364
Abstract: A visualization system for an ophthalmic procedure on a target eye, e.g., lens replacement surgery, includes first and second light sources respectively operable for directing visible and NIR light toward the target eye. A hot mirror directs reflected light from the eye along two paths, i.e., a visible light path for reflected visible light and an NIR light path for reflected NIR light. First and second cameras are respectively positioned in the visible and NR light paths to detect the reflected visible or NIR light and output a visible or NIR image. An electronic control unit (ECU) executes a method to detect a perimeter edge of an imaged portion of the target eye in the NIR image using edge detection logic, merges the visible image with the NIR image to construct a combined image, and indicates the perimeter edge in the combined image.
-
公开(公告)号：US20230160690A1
公开(公告)日：2023-05-25
申请号：US18055732
申请日：2022-11-15
Applicant: Alcon Inc.
Inventor： John Park , Edward A. DeHoog
CPC classification number: G01B11/22 , A61B90/06 , A61B2090/062
Abstract: In certain embodiments, an ophthalmic system includes an anamorphic depth gauge (ADG) device and a computer. The ADG device measures the z-location in the interior of an eye and includes a detector array arranged at an oblique angle with respect to the z-axis. The array generates a detector signal in response to detecting a light beam, which has a z-focus in the interior of the eye. A set of line focus optical elements focuses the light beam to form a line focus on the detector array, and a set of nominal focus optical elements focuses the light beam to form a nominal focus on the detector array. The computer: generates an image using the detector signal; determines the position of the nominal focus on the line focus according to the image; and determines the z-location of the z-focus from the position of the nominal focus on the line focus.
-
公开(公告)号：US20250123501A1
公开(公告)日：2025-04-17
申请号：US18911759
申请日：2024-10-10
Applicant: Alcon Inc.
Inventor： Yu Yan , John Park , Qing Xiang
Abstract: An illuminated contact lens system for illuminating an interior of a patient's eye includes a contact lens, an external light source, and a light engine. The lens refracts directed light into the eye. The light source emits the directed light toward the eye. The light engine transmits electronic control signals that cause the light source to emit the directed light. A prism array connected to an annular tube containing the light source may optionally shape the directed light into a conical distribution pattern. A control board may drive the light source in response to the electronic control signals, and may be optionally used as a proximity sensor. A method includes receiving the electronic control signals from the light engine via the control board, illuminating the light source, and emitting the directed light from the toward the eye.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.011 seconds)
