公开(公告)号：US11723746B2

公开(公告)日：2023-08-15

申请号：US17235969

申请日：2021-04-21

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi

IPC: A61B90/00 ,  A61B34/10 ,  A61F2/16

CPC classification number: A61B90/37 ,  A61F2/16 ,  A61B2034/107 ,  A61B2090/365

Abstract: A system, method, and apparatus for performing intraocular lens implantation using real-time surgical reference indicium are disclosed. An example method includes recording a patient specific pre-operative still image of an eye prior to cyclorotation of the eye when a patient lies down for surgery and generating at least one real-time multidimensional visualization of at least a portion of the eye for display. The method further includes using the patient specific pre-operative still image to at least produce at least one virtual surgical reference indicium including an ocular natural vertical axis of the eye and align the at least one virtual surgical reference indicium to the eye in conjunction with the real-time multidimensional visualization of at least a portion of the eye. The patient specific pre-operative still image is captured under a dilation condition selected from the group consisting of natural dilation, chemical dilation, and no dilation.

公开(公告)号：US11682483B2

公开(公告)日：2023-06-20

申请号：US17835356

申请日：2022-06-08

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi ,  George Charles Polchin ,  Yen Ting Ng

IPC: G06K9/00 ,  G16H30/40 ,  H04N13/204 ,  G06T7/33 ,  G06T19/00 ,  A61B5/00 ,  A61B90/20 ,  A61B90/00 ,  H04N13/30 ,  G16H20/40 ,  A61B5/055 ,  A61B6/03 ,  G06T7/00 ,  G06T11/00 ,  G06T19/20 ,  G06T5/00 ,  G16H30/20

CPC classification number: G16H30/40 ,  A61B5/0077 ,  A61B5/055 ,  A61B5/743 ,  A61B5/745 ,  A61B5/7425 ,  A61B6/03 ,  A61B6/032 ,  A61B6/037 ,  A61B90/20 ,  A61B90/37 ,  G06T5/002 ,  G06T7/0014 ,  G06T7/337 ,  G06T11/008 ,  G06T19/00 ,  G06T19/20 ,  G16H20/40 ,  G16H30/20 ,  H04N13/204 ,  H04N13/30 ,  A61B2090/365 ,  A61B2090/3983 ,  A61B2576/00 ,  G06T2200/24 ,  G06T2207/10021 ,  G06T2207/10028 ,  G06T2207/10088 ,  G06T2207/20104 ,  G06T2207/20221 ,  G06T2207/30016 ,  G06T2207/30196 ,  G06T2207/30204 ,  G06T2210/41 ,  G06T2210/62 ,  G06T2211/40 ,  G06T2219/028 ,  G06T2219/2004

Abstract: A system, method, and apparatus for displaying a fused reconstructed image with a multidimensional image are disclosed. An example imaging system receives a selection corresponding to a portion of a displayed multidimensional visualization of a surgical site. At the selected portion of the multidimensional visualization, the imaging system displays a portion of a three-dimensional image which corresponds to the selected multidimensional visualization such that the displayed portion of the at least one of the three-dimensional image or model is fused with the displayed multidimensional visualization.

公开(公告)号：US20230036067A1

公开(公告)日：2023-02-02

申请号：US17938894

申请日：2022-10-07

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi

IPC: A61B34/20 ,  A61B3/13 ,  A61F9/013 ,  A61B34/00 ,  A61B34/10 ,  A61B90/20 ,  A61B90/00 ,  A61F9/007

Abstract: A system, method, and apparatus for guiding an astigmatism correction procedure on an eye of a patient are disclosed. An example apparatus includes a photosensor configured to record a pre-operative still image of an ocular target surgical site of the patient. The apparatus also includes a real-time, multidimensional visualization module configured to produce a real-time multidimensional visualization of the ocular target surgical site during an astigmatism correction procedure. The apparatus further includes a data processor configured to determine a virtual indicium that includes data for guiding the astigmatism correction procedure. The data processor uses the pre-operative still image to align the virtual indicium with the multidimensional visualization such that the virtual indicium is rotationally accurate. The data processor then displays the multidimensional visualization of the ocular target surgical site in conjunction with the virtual indicium.

公开(公告)号：US20220175241A1

公开(公告)日：2022-06-09

申请号：US17116912

申请日：2020-12-09

Applicant: ALCON INC.

Inventor： Ashok Burton Tripathi

IPC: A61B3/00 ,  A61B3/13

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.

公开(公告)号：US20210251718A1

公开(公告)日：2021-08-19

申请号：US17235969

申请日：2021-04-21

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi

IPC: A61B90/00 ,  A61F2/16

Abstract: A system, method, and apparatus for performing intraocular lens implantation using real-time surgical reference indicium are disclosed. An example method includes recording a patient specific pre-operative still image of an eye prior to cyclorotation of the eye when a patient lies down for surgery and generating at least one real-time multidimensional visualization of at least a portion of the eye for display. The method further includes using the patient specific pre-operative still image to at least produce at least one virtual surgical reference indicium including an ocular natural vertical axis of the eye and align the at least one virtual surgical reference indicium to the eye in conjunction with the real-time multidimensional visualization of at least a portion of the eye. The patient specific pre-operative still image is captured under a dilation condition selected from the group consisting of natural dilation, chemical dilation, and no dilation.

公开(公告)号：US10687979B2

公开(公告)日：2020-06-23

申请号：US16517100

申请日：2019-07-19

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi

IPC: A61F9/008 ,  A61B3/00 ,  A61B3/13 ,  A61B3/14 ,  G02B21/36 ,  G02B23/12 ,  A61B3/10

Abstract: Performance of enhanced visually directed procedures under low ambient lighting conditions. A computer readable medium storing a set of computer instructions for performing an enhanced visually directed procedure under low ambient visible light on a patient's eye. The computer instructions include: acquiring at least one real-time high resolution video signal representing at least one view of the eye in at least one wavelength of light outside of the wavelengths of visible light. The computer instructions include converting the at least one view is converted corresponding to the at least one real-time high resolution video signal at the at least one wavelength of light outside of the wavelengths of visible light into at least one wavelength of visible light. The at least one high resolution photosensor is acquired after light conditions are low enough such that a pupil of the eye does not constrict substantially from its maximum pupillary diameter.

公开(公告)号：US20250166798A1

公开(公告)日：2025-05-22

申请号：US19028390

申请日：2025-01-17

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi ,  George Charles Polchin ,  Yen Ting Ng

IPC: G16H30/40 ,  A61B5/00 ,  A61B5/055 ,  A61B6/03 ,  A61B90/00 ,  A61B90/20 ,  G06T5/70 ,  G06T7/00 ,  G06T7/33 ,  G06T11/00 ,  G06T19/00 ,  G06T19/20 ,  G16H20/40 ,  G16H30/20 ,  H04N13/204 ,  H04N13/30

Abstract: A system, method, and apparatus for displaying a fused reconstructed image with a multidimensional image are disclosed. An example imaging system receives a selection corresponding to a portion of a displayed multidimensional visualization of a surgical site. At the selected portion of the multidimensional visualization, the imaging system displays a portion of a three-dimensional image which corresponds to the selected multidimensional visualization such that the displayed portion of the at least one of the three-dimensional image or model is fused with the displayed multidimensional visualization.

公开(公告)号：US12279917B2

公开(公告)日：2025-04-22

申请号：US18339785

申请日：2023-06-22

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi

IPC: A61B90/00 ,  A61B34/10 ,  A61F2/16

Abstract: A system, method, and apparatus for performing intraocular lens implantation using real-time surgical reference indicium are disclosed. An example method includes recording a patient specific pre-operative still image of an eye prior to cyclorotation of the eye when a patient lies down for surgery and generating at least one real-time multidimensional visualization of at least a portion of the eye for display. The method further includes using the patient specific pre-operative still image to at least produce at least one virtual surgical reference indicium including an ocular natural vertical axis of the eye and align the at least one virtual surgical reference indicium to the eye in conjunction with the real-time multidimensional visualization of at least a portion of the eye. The patient specific pre-operative still image is captured under a dilation condition selected from the group consisting of natural dilation, chemical dilation, and no dilation.

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

IPC: A61B3/14 ,  G06T7/00

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.

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

IPC: A61B3/14 ,  G06T7/00

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.