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公开(公告)号：US20220303435A1
公开(公告)日：2022-09-22
申请号：US17718735
申请日：2022-04-12
Applicant: Alcon Inc.
Inventor： Maximiliano Ramirez Luna , Michael Weissman , Thomas Paul Riederer , George Charles Polchin , Ashok Burton Tripathi , Patrick Terry
Abstract: A method of calibrating a robotic imaging apparatus includes providing the robotic imaging apparatus, calibrating a stereoscopic camera portion of the apparatus to robot space, and registering the robot space to a patient space. An embodiment of the apparatus includes a base section defining the robot space, a robotic arm including a first end connected to the base section, a second end including a coupling interface, and a plurality of joints and links connecting the first end to the second end, each joint including a motor configured to rotate the joint around an axis and a joint sensor configured to transmit a position of the respective joint, a stereoscopic camera connected at the coupling interface, and a sensor positioned at the coupling interface and configured to detect force imparted on the stereoscopic camera by an operator and to transmit output data indicative of the detected force.
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22.发明申请公开(公告)号：US20220192489A1
公开(公告)日：2022-06-23
申请号：US17516949
申请日：2021-11-02
Applicant: ALCON INC.
Inventor： Dan Durant , Ashok Burton Tripathi
Abstract: A system and method quantify light exposure of a patient retina during an ophthalmic procedure. A light source illuminates the patient retina with directed light during the procedure to produce an illuminated retina surface. A camera collects image data of the illuminated retina surface. An electronic control unit (ECU) in communication with the camera and an indicator device receives the image data, calculates a cumulative energy spectral density of the directed light falling incident upon the retina, and executes a control action indicative of possible light toxicity in response to the cumulative energy spectral density exceeding a light toxicity threshold, including activating the indicator device. The illuminated retina surface may be divided into virtual zones, with the ECU mapping the cumulative energy spectral density to the illuminated retina surface. Each of the optional zones has a corresponding cumulative energy spectral density.
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公开(公告)号：US11241294B2
公开(公告)日：2022-02-08
申请号：US16180726
申请日：2018-11-05
Applicant: Alcon Inc.
Inventor： Ashok Burton Tripathi , Michael A. Weissman
Abstract: Apparatus and methods are described which guide a surgeon in performing a reconstructive or cosmetic procedure. The apparatus and methods utilize three dimensional presentations of the target surgical site incorporating one or more virtual surgical guides which help attain proper alignment and orientation of the post surgical outcome.
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公开(公告)号：US20220008158A1
公开(公告)日：2022-01-13
申请号：US17369242
申请日：2021-07-07
Applicant: Alcon, Inc.
Inventor： Ashok Burton Tripathi , Maximiliano Ramirez Luna , George Polchin , Thomas Riederer , Alan Fridman
IPC: A61B90/00 , H04N13/296 , H04N5/232 , G06T19/00 , H04N13/225 , H04N13/236 , H04N13/246 , H04N13/254 , G02B15/14 , G03B5/00 , G03B35/08 , G03B35/10 , H04N13/239 , H04N13/156
Abstract: A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-infrared light source, and a near-ultraviolet light source. The stereoscopic camera also includes a light filter assembly having left and right filter magazines positioned respectively along left and right optical paths and configured to selectively enable certain wavelengths of light to pass through. Each of the left and right filter magazines includes an infrared cut filter, a near-ultraviolent cut filter, and a near-infrared bandpass filter. A controller of the camera is configured to provide for a visible light mode, an indocyanine green (“ICG”) fluorescence mode, and a 5-aminolevulinic acid (“ALA”) fluorescence mode by synchronizing the activation of the light sources with the selection of the filters. A processor of the camera combines image data from the different modes to enable fluorescence emission light to be superimposed on visible light stereoscopic images.
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公开(公告)号：US11083537B2
公开(公告)日：2021-08-10
申请号：US16552297
申请日：2019-08-27
Applicant: Alcon Inc.
Inventor： Ashok Burton Tripathi , Maximiliano Ramirez Luna , George Polchin , Thomas Riederer , Alan Fridman
IPC: A61B9/00 , A61B90/00 , H04N13/296 , H04N5/232 , G06T19/00 , H04N13/225 , H04N13/236 , H04N13/246 , H04N13/254 , G02B15/14 , G03B5/00 , G03B35/08 , G03B35/10 , H04N13/239 , H04N13/156 , H04N13/337 , H04N13/183 , H04N9/04
Abstract: A stereoscopic camera with fluorescence visualization is disclosed. An example stereoscopic camera includes a visible light source, a near-ultraviolet light source, and a near-ultraviolet light source. The stereoscopic camera also includes a light filter assembly having left and right filter magazines positioned respectively along left and right optical paths and configured to selectively enable certain wavelengths of light to pass through. Each of the left and right filter magazines includes an infrared cut filter, a near-ultraviolent cut filter, and a near-infrared bandpass filter. A controller of the camera is configured to provide for a visible light mode, an indocyanine green (“ICG”) fluorescence mode, and a 5-aminolevulinic acid (“ALA”) fluorescence mode by synchronizing the activation of the light sources with the selection of the filters. A processor of the camera combines image data from the different modes to enable fluorescence emission light to be superimposed on visible light stereoscopic images.
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Patent Agency Ranking
公开(公告)号：US10917543B2
公开(公告)日：2021-02-09
申请号：US16398014
申请日：2019-04-29
Applicant: Alcon Inc.
Inventor： Maximiliano Ramirez Luna , Michael Weissman , Thomas Paul Riederer , George Charles Polchin , Ashok Burton Tripathi , Patrick Terry
Abstract: A robotic imaging apparatus is disclosed. A robotic imaging apparatus includes a robotic arm, a stereoscopic camera, and a sensor positioned between the robotic arm and the stereoscopic camera. The sensor transmits output data that is indicative of translational and rotational force imparted on the stereoscopic camera by an operator. The robotic imaging apparatus also includes a processor that is configured to determine a movement sequence for the robotic arm based on a current position of the robotic arm and the output data from the sensor and to cause at least one of the joints of the robotic arm to rotate based on the determined movement sequence via one or more motor control signals provided to the at least one joint. The rotation of the at least one joint provides power-assisted movement of the robotic arm based on the detected translational and rotational forces imparted by the operator.
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公开(公告)号：US12274498B2
公开(公告)日：2025-04-15
申请号：US18487193
申请日：2023-10-16
Applicant: ALCON INC.
Inventor： Ashok Burton Tripathi
Abstract: A retina viewing system and method of using the same includes an ophthalmic microscope, a disposable lens attachment, and an electronic control unit (ECU). The microscope has an optical head and a set of internal focusing lenses, the latter providing the microscope with a variable working distance or focal length. The disposable lens attachment includes a resilient body with a proximal end connected to the optical head and a distal end connected to a high-power/high-diopter distal lens. The ECU executes instructions for viewing a retina or other intraocular anatomy of a patient eye. Execution of the instructions causes the ECU to automatically adjust the variable working distance or focal length of the microscope when viewing an image of the retina through the distal lens.
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公开(公告)号：US12219228B2
公开(公告)日：2025-02-04
申请号：US17718735
申请日：2022-04-12
Applicant: Alcon Inc.
Inventor： Maximiliano Ramirez Luna , Michael Weissman , Thomas Paul Riederer , George Charles Polchin , Ashok Burton Tripathi , Patrick Terry
IPC: H04N23/51 , A61B34/00 , A61B34/32 , B25J9/00 , B25J9/04 , B25J9/16 , H04N13/204 , H04N23/695
Abstract: A method of calibrating a robotic imaging apparatus includes providing the robotic imaging apparatus, calibrating a stereoscopic camera portion of the apparatus to robot space, and registering the robot space to a patient space. An embodiment of the apparatus includes a base section defining the robot space, a robotic arm including a first end connected to the base section, a second end including a coupling interface, and a plurality of joints and links connecting the first end to the second end, each joint including a motor configured to rotate the joint around an axis and a joint sensor configured to transmit a position of the respective joint, a stereoscopic camera connected at the coupling interface, and a sensor positioned at the coupling interface and configured to detect force imparted on the stereoscopic camera by an operator and to transmit output data indicative of the detected force.
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公开(公告)号：US12175556B2
公开(公告)日：2024-12-24
申请号：US17659123
申请日：2022-04-13
Applicant: Alcon Inc.
Inventor： Patrick Terry , Ashok Burton Tripathi
Abstract: A method, instructions for which are executed from a computer-readable medium, calibrates a robotic camera system having a digital camera connected to an end-effector of a serial robot. The end-effector and camera move within a robot motion coordinate frame (“robot frame”). The method includes acquiring, using the camera, a reference image of a target object on an image plane having an optical coordinate frame, and receiving input signals, including a depth measurement and joint position signals. Separate roll and pitch offsets are determined of a target point within the reference image with respect to the robot frame while moving the robot. Offsets are also determined with respect to x, y, and z axes of the robot frame while moving the robot through another motion sequence. The offsets are stored in a transformation matrix, which is used to control the robot during subsequent operation of the camera system.
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公开(公告)号：US11969215B2
公开(公告)日：2024-04-30
申请号：US17108458
申请日：2020-12-01
Applicant: ALCON INC.
Inventor： Ashok Burton Tripathi , George Charles Polchin , Maximiliano Ramirez Luna , Patrick Terry , Thomas Paul Riederer
IPC: A61B3/18 , A61B3/00 , A61B3/10 , A61B3/14 , A61B34/30 , G06T3/14 , G06T7/30 , H04N13/156 , H04N13/204 , H04N13/246 , H04N13/296 , A61B90/00 , A61F9/007
CPC classification number: A61B3/185 , A61B3/0025 , A61B3/0033 , A61B3/102 , A61B3/14 , A61B34/30 , G06T3/14 , G06T7/30 , H04N13/156 , H04N13/204 , H04N13/246 , H04N13/296 , A61B2090/364 , A61B2505/05 , A61B2560/0223 , A61F9/007 , G06T2200/24 , G06T2207/10012 , G06T2207/10101 , G06T2207/20221 , G06T2207/30041
Abstract: System and method for imaging a target site with a housing assembly having a head unit configured to be at least partially directed towards the target site. An optical coherence tomography (OCT) module and stereoscopic visualization camera are at least partially located in the head unit and configured to obtain a first set and a second of volumetric data of the target site, respectively. A controller is configured to register the first set of volumetric data with the second set of volumetric data to create a third set of registered volumetric data. The third set of registered volumetric data and second set of volumetric data are rendered, via a volumetric render module, to a first and second region. The first region and the second region are overlaid to obtain a composite shared view of the target.
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