公开(公告)号：US20240099807A1

公开(公告)日：2024-03-28

申请号：US18536516

申请日：2023-12-12

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi ,  Michael A. Weissman

IPC: A61B90/00

CPC classification number: A61B90/37 ,  A61F2/0059

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.

公开(公告)号：US11571272B2

公开(公告)日：2023-02-07

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 ,  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-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.

公开(公告)号：US20220392012A1

公开(公告)日：2022-12-08

申请号：US17659123

申请日：2022-04-13

Applicant: Alcon Inc.

Inventor： Patrick Terry ,  Ashok Burton Tripathi

IPC: G06T1/00 ,  B25J19/02 ,  G06T7/80

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.

公开(公告)号：US11497561B2

公开(公告)日：2022-11-15

申请号：US16445936

申请日：2019-06-19

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi

IPC: A61F9/013 ,  A61B34/20 ,  A61B3/13 ,  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 include 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：US20220301693A1

公开(公告)日：2022-09-22

申请号：US17835356

申请日：2022-06-08

Applicant: Alcon Inc.

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

IPC: G16H30/40 ,  H04N13/204 ,  G06T7/33 ,  G06T19/00 ,  A61B5/00 ,  A61B90/20 ,  A61B90/00 ,  H04N13/30 ,  G16H20/40 ,  G06V10/44 ,  G06V10/22 ,  A61B5/055 ,  A61B6/03 ,  G06T7/00 ,  G06T11/00 ,  G06T19/20 ,  G06T5/00 ,  G16H30/20

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：US11386992B2

公开(公告)日：2022-07-12

申请号：US16916683

申请日：2020-06-30

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 ,  G06V10/44 ,  G06V10/22 ,  A61B5/055 ,  A61B6/03 ,  G06T7/00 ,  G06T11/00 ,  G06T19/20 ,  G06T5/00 ,  G16H30/20

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：US20220198653A1

公开(公告)日：2022-06-23

申请号：US17507082

申请日：2021-10-21

Applicant: ALCON INC.

Inventor： Lu Yin ,  Ashok Burton Tripathi ,  Ramesh Sarangapani

IPC: G06T7/00 ,  A61B3/14 ,  G06T5/00

Abstract: A system and method for visually enhancing an original image of an eye includes a visualization module. A controller is configured to convert an output of the visualization module to a first pixel cloud in a first color space and map the first pixel cloud to a second pixel cloud in a second color space. The method includes identifying at least one selected zone in the second color space. The controller is configured to move the selected zone from an original location to a modified location in the second color space. The second pixel cloud is updated to obtain a modified second pixel cloud, which is transformed into a third pixel cloud in the first color space. An enhanced image is formed based in part on the modified second pixel cloud and provides selective visual enhancement in the selected zone without affecting contrast in a remainder of the original image.

公开(公告)号：US20220168140A1

公开(公告)日：2022-06-02

申请号：US17673317

申请日：2022-02-16

Applicant: Alcon Inc.

Inventor： Ashok Burton Tripathi

IPC: A61F9/008 ,  A61B3/13 ,  A61B3/14 ,  G02B21/36 ,  G02B23/12 ,  A61B3/00 ,  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：US11336804B2

公开(公告)日：2022-05-17

申请号：US17141661

申请日：2021-01-05

Applicant: ALCON INC.

Inventor： Maximiliano Ramirez Luna ,  Michael Weissman ,  Thomas Paul Riederer ,  George Charles Polchin ,  Ashok Burton Tripathi ,  Patrick Terry

IPC: H04N5/225 ,  H04N5/232 ,  H04N13/204 ,  B25J9/00 ,  A61B34/00 ,  B25J9/04 ,  B25J9/16 ,  A61B34/32

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/or 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/or rotational forces imparted by the operator.

公开(公告)号：US11285043B2

公开(公告)日：2022-03-29

申请号：US16872954

申请日：2020-05-12

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. An imaging system includes a first high resolution photosensor configured to acquire at least one first 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. A second high resolution photosensor is configured to acquire at least one second real-time high resolution video signal representing the at least one view of the eye inside of the wavelengths of visible light. A control unit is configured to acquire the at least one first real-time high resolution video signal and the at least one second real-time high resolution video signal after the light conditions are low enough such that a pupil of the eye does not constrict substantially from its maximum pupillary diameter, via the first and the second high resolution photosensor, respectively.