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1.发明申请公开(公告)号：US20250057419A1
公开(公告)日：2025-02-20
申请号：US18934436
申请日：2024-11-01
Applicant: ALCON INC.
Inventor： Dan Durant , Ashok Burton Tripathi
Abstract: A system and method quantify light exposure of a patient's retina during an ophthalmic procedure. A light source illuminates the patient's 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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2.发明授权公开(公告)号：US12171495B2
公开(公告)日：2024-12-24
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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3.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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4.发明申请公开(公告)号：US20200309760A1
公开(公告)日：2020-10-01
申请号：US16826828
申请日：2020-03-23
Applicant: Alcon Inc.
Inventor： Dan Durant
IPC: G01N33/487 , A61M1/00 , A61F9/007 , G01N27/02 , G01N27/327
Abstract: Systems and methods are disclosed for identifying material aspirated during an ophthalmic procedure. Example systems comprise a first electrode and a second electrode positioned such that aspirated material flows between the first electrode and the second electrode and an alternating current impedance measuring component connected to the first electrode and the second electrode. The alternating current impedance measuring component measures the impedance of the aspirated material between the first electrode and the second electrode, and, based upon the measured impedance, the aspirated material can be identified.
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