公开(公告)号：US12033742B2

公开(公告)日：2024-07-09

申请号：US17549830

申请日：2021-12-13

Applicant: Align Technology, Inc.

Inventor： Shai Farkash ,  Yossef Atiya ,  Maayan Moshe ,  Moti Ben-Dov ,  Raphael Levy ,  Doron Malka

IPC: G06T7/00 ,  A61B1/04 ,  A61B1/06 ,  A61B1/24 ,  A61C9/00 ,  G16H30/40 ,  G16H50/20 ,  G16H70/60 ,  G06N20/00

CPC classification number: G16H30/40 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/24 ,  A61C9/0053 ,  G06T7/0016 ,  G16H50/20 ,  G16H70/60 ,  G06N20/00 ,  G06T2200/04 ,  G06T2207/10024 ,  G06T2207/10048 ,  G06T2207/10064 ,  G06T2207/20081 ,  G06T2207/30036 ,  G06T2207/30096

Abstract: Methods and apparatuses for assessing oral health and automatically providing diagnosis of one or more oral diseases. Described herein are intraoral scanning methods and apparatuses for collecting and analyzing image data and to detect and visualize features within image data that are indicative of oral diseases or conditions, such as gingival inflammation or oral cancer. These methods and apparatuses may be used for identifying and evaluating lesions, redness and inflammation in soft tissue and caries and cracks in the teeth. The methods can include training a machine learning model and using the trained machine learning model to provide a diagnosis of an oral disease or condition based on image data collected using multiple scanning modes of an intraoral scanner.

公开(公告)号：US20240138961A1

公开(公告)日：2024-05-02

申请号：US18485222

申请日：2023-10-11

Applicant: Align Technology, Inc.

Inventor： Ofer Saphier ,  Yossef Atiya ,  Arkady Rudnitsky ,  Nir Makmel ,  Sergei Ozerov ,  Tal Verker ,  Tal Levy

IPC: A61C9/00 ,  A61B1/00 ,  A61B1/24 ,  G02B27/42 ,  G06T7/521 ,  G06T7/586 ,  G06T7/80 ,  G06T17/00 ,  H04N9/31

CPC classification number: A61C9/006 ,  A61B1/00096 ,  A61B1/00172 ,  A61B1/00193 ,  A61B1/24 ,  G02B27/4222 ,  G02B27/4227 ,  G06T7/521 ,  G06T7/586 ,  G06T7/80 ,  G06T7/85 ,  G06T17/00 ,  H04N9/3161 ,  G06T2207/10024 ,  G06T2207/10028 ,  G06T2207/10052 ,  G06T2207/30036

Abstract: A dental scanning system comprises an intraoral scanner and one or more processors. The intraoral scanner comprises one or more light projectors configured to project a pattern (comprising a plurality of pattern features) on a surface of a dental object, and two or more cameras configured to acquire one or more sets of images, wherein each set of images comprises at least one image from each camera, and wherein each image includes at least a portion of the projected pattern. The processors are configured to determine one or more image features within each set of images, solve a correspondence problem within each set of images such that points in 3D space are determined based on the image features, wherein said points form a solution to the correspondence problem, and wherein the correspondence problem is solved for groups of pattern features, and generate a digital 3D representation of the dental object using the solution to the correspondence problem.

公开(公告)号：US20240138960A1

公开(公告)日：2024-05-02

申请号：US18410931

申请日：2024-01-11

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Avi Kopelman ,  Erez Lampert

IPC: A61C9/00 ,  A61B1/00 ,  A61B1/015 ,  A61B1/04 ,  A61B1/06 ,  A61B1/12 ,  A61B1/24 ,  A61B1/253 ,  A61B5/00 ,  A61B5/107

CPC classification number: A61C9/006 ,  A61B1/00009 ,  A61B1/000095 ,  A61B1/00016 ,  A61B1/00142 ,  A61B1/00181 ,  A61B1/00193 ,  A61B1/00194 ,  A61B1/015 ,  A61B1/04 ,  A61B1/06 ,  A61B1/0605 ,  A61B1/0625 ,  A61B1/0684 ,  A61B1/126 ,  A61B1/128 ,  A61B1/24 ,  A61B1/253 ,  A61B5/0088 ,  A61B5/1077 ,  A61B5/1079 ,  A61B5/4547 ,  A61C9/0006 ,  A61B5/01 ,  A61C2204/002

Abstract: A system comprises a dental tray comprising an array of cameras, wherein each camera of the first array of cameras has a fixed position and orientation relative to one or more other camera of the array of cameras, the array of cameras configured to generate a plurality of images comprising image data of at least a portion of the dental arch. The system further comprises a processing device to receive a plurality of images generated by the array of cameras, stitch the plurality of images together based on calibration data specifying predetermined image stitching parameters for combining the plurality of images, wherein the predetermined image stitching parameters are based on predetermined fixed relative positions and orientations of cameras from the array of cameras, and generate a three-dimensional model of a plurality of teeth based on the stitched plurality of images.

公开(公告)号：US11950880B2

公开(公告)日：2024-04-09

申请号：US18190026

申请日：2023-03-24

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker ,  Nir Makmel

IPC: A61B5/00 ,  A61C9/00 ,  F21V8/00 ,  G01B11/24 ,  G01B11/245 ,  G02B5/04 ,  G02B6/26 ,  G02B13/16 ,  G02B23/24 ,  G02B6/00

CPC classification number: A61B5/0088 ,  A61C9/0066 ,  G01B11/24 ,  G01B11/245 ,  G02B5/04 ,  G02B6/0006 ,  G02B6/0046 ,  G02B6/262 ,  G02B13/16 ,  G02B23/2461 ,  G01B2210/50 ,  G02B2006/0098

Abstract: An intraoral scanner comprises a light source for generating light, an optics system for focusing the light, and a light-guiding part having an entrance and an exit. The light source, the optics system and the light-guiding part are arranged such that the light passes through the optics system, enters the light-guiding part via the entrance, and exits the light-guiding part via the exit. The optics system is configured such that, upon entering the light-guiding part, an outermost chief ray of the light with respect to an optical axis of the optics system is divergent to the optical axis and an outermost marginal ray of the light with respect to the optical axis is parallel or divergent to the optical axis.

公开(公告)号：US11903794B2

公开(公告)日：2024-02-20

申请号：US17881506

申请日：2022-08-04

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Avi Kopelman ,  Erez Lampert

IPC: A61C9/00 ,  A61B1/253 ,  A61B1/00 ,  A61B1/06 ,  A61B5/00 ,  A61B5/107 ,  A61B1/04 ,  A61B1/015 ,  A61B1/12 ,  A61B1/24 ,  A61B5/01

CPC classification number: A61C9/006 ,  A61B1/00009 ,  A61B1/00016 ,  A61B1/000095 ,  A61B1/00142 ,  A61B1/00181 ,  A61B1/00193 ,  A61B1/00194 ,  A61B1/015 ,  A61B1/04 ,  A61B1/06 ,  A61B1/0605 ,  A61B1/0625 ,  A61B1/0684 ,  A61B1/126 ,  A61B1/128 ,  A61B1/24 ,  A61B1/253 ,  A61B5/0088 ,  A61B5/1077 ,  A61B5/1079 ,  A61B5/4547 ,  A61C9/0006 ,  A61B5/01 ,  A61B2560/0242 ,  A61B2562/043 ,  A61C2204/002

Abstract: A system comprises a dental tray comprising an array of cameras, wherein each camera of the first array of cameras has a fixed position and orientation relative to one or more other camera of the array of cameras. The system further comprises a processing device to receive a plurality of images generated by the array of cameras, stitch the plurality of images together based on calibration data specifying predetermined image stitching parameters for combining the plurality of images, wherein the predetermined image stitching parameters are based on predetermined fixed relative positions and orientations of cameras from the array of cameras, and generate a three-dimensional model of a plurality of teeth based on the stitched plurality of images.

公开(公告)号：US20240036448A1

公开(公告)日：2024-02-01

申请号：US18226651

申请日：2023-07-26

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Ofer Saphier ,  Noam Shekel

IPC: G03B21/14 ,  A61B1/00 ,  G03B21/20 ,  A61C9/00 ,  G03B21/16 ,  G03B17/54

CPC classification number: G03B21/145 ,  A61B1/00096 ,  G03B21/2033 ,  A61C9/006 ,  G03B21/16 ,  G03B17/54 ,  G03B21/208 ,  G03B21/2013 ,  G03B21/2066

Abstract: An apparatus for intraoral scanning comprises an elongate wand comprising a probe at a distal end of the elongate wand. The apparatus further comprises one or more structured light projectors disposed within the probe, each structured light projector comprising: (a) a housing; (b) a light source disposed within the housing and comprising: a semiconductor laser die; and a beam shaping optical element; and (c) a pattern generating optical element. A distance D between an emission point of the semiconductor laser die and an input face of the beam shaping optical element is 50-250 microns. Each structured light projector is configured to project a pattern of light onto an intraoral surface when the light source of the structured light projector is activated to emit light through the pattern generating optical element of the structured light projector.

公开(公告)号：US20240024082A1

公开(公告)日：2024-01-25

申请号：US18371348

申请日：2023-09-21

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

IPC: A61C9/00 ,  A61C1/08 ,  A61B5/00 ,  A61B1/247 ,  A61B1/06 ,  A61B1/00 ,  G01B11/24 ,  G01B11/30

CPC classification number: A61C9/0066 ,  A61C1/088 ,  A61B5/0088 ,  A61B1/247 ,  A61B1/0676 ,  A61B5/7228 ,  A61B1/00011 ,  A61B5/0013 ,  A61B5/0022 ,  G01B11/24 ,  A61C9/0046 ,  A61C9/0053 ,  A61B1/000094 ,  A61B1/00045 ,  G01B11/30 ,  A61B2562/0233

Abstract: An apparatus for determining surface topography of a patient's teeth comprises a probe sized to be at least partially inserted into an intraoral cavity of the patient, a light source to output light; and a light focusing assembly. The light focusing assembly comprises a first lens, a second lens and a focus changing assembly comprising one or more additional lenses that shares an optical axis with the first lens and the second lens and being configured to focus the light to a plurality of external focal planes to illuminate the patient's teeth, wherein the focus changing assembly has a movement gain factor, and wherein as a result of the movement gain factor a change in separation between lenses of the focus changing assembly by a first distance results in a change in a focus setting by a second distance that is 2-10 times greater than the first distance. The apparatus further comprises a detector configured to measure one or more characteristics of incident light returning from the illuminated patient's teeth and a processor coupled to the detector and configured to generate data representative of a topography of the patient's teeth based on the one or more measured characteristics of the incident light returning from the illuminated patient's teeth.

公开(公告)号：US11843222B2

公开(公告)日：2023-12-12

申请号：US17835857

申请日：2022-06-08

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker

IPC: H01S5/00 ,  H01S5/068 ,  H01S5/183 ,  H01S5/42 ,  F21V5/04

CPC classification number: H01S5/06817 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/183 ,  H01S5/42 ,  H01S5/423 ,  F21V5/04 ,  H01S2301/02 ,  H01S2301/04 ,  H01S2301/206

Abstract: In embodiments, a system for scanning an intraoral cavity comprises an intraoral scanner to generate intraoral scan data of the intraoral cavity and viewfinder images of the intraoral cavity, a display, and a processing unit operatively connected to the intraoral scanner and to the display. The processing unit is to: receive the intraoral scan data and the viewfinder images from the intraoral scanner; generate a three-dimensional (3D) digital model of the intraoral cavity using the intraoral scan data; output the 3D digital model to the display; output the viewfinder images to the display; determine which portions of the intraoral cavity have been scanned; determine a current field of view of the intraoral scanner; determine a visual indicator that provides guidance for positioning and orienting the field of view of the intraoral scanner; and output the visual indicator to the display.

公开(公告)号：US20230156173A1

公开(公告)日：2023-05-18

申请号：US18156349

申请日：2023-01-18

Applicant: Align Technology, Inc.

Inventor： Ofer Saphier ,  Tal Levy ,  Gal Peleg ,  Eliran Dafna ,  Sergei Ozerov ,  Tal Verker ,  Nir Makmel ,  Yossef Atiya

IPC: H04N13/204 ,  G06T7/521 ,  G01B11/25 ,  H04N1/00

CPC classification number: H04N13/204 ,  G06T7/521 ,  G01B11/25 ,  H04N1/00018

Abstract: An intraoral scanning system comprises and intraoral scanner and a processor. The intraoral scanner comprises one or more cameras and one or more structured light projectors, the intraoral scanner to generate a series of images using the one or more cameras, each image including at least a portion of a pattern projected by the one or more structured light projectors onto an intraoral three-dimensional surface. The processor runs a correspondence algorithm to compute respective three-dimensional positions of a plurality of features of the pattern on the intraoral three-dimensional surface, as captured in the series of images. The processor identifies the computed three-dimensional position of a detected feature of the pattern as corresponding to a particular projector ray r, in at least a subset of the series of images. The processor tracks the particular projector ray r across one or more additional images of the series of images.

公开(公告)号：US11638525B2

公开(公告)日：2023-05-02

申请号：US17570285

申请日：2022-01-06

Applicant: Align Technology, Inc.

Inventor： Yossef Atiya ,  Tal Verker ,  Nir Makmel

IPC: A61B5/00 ,  G02B13/16 ,  G02B6/26 ,  G01B11/24 ,  G01B11/245 ,  A61C9/00 ,  G02B6/00 ,  F21V8/00 ,  G02B5/04 ,  G02B23/24

Abstract: An apparatus for dental imaging comprises a light source for generating light, an optics system for focusing the light, and a probe head. The light source, the optics system and the probe head are arranged such that the light passes through the optics system, passes through the probe head, and exits the probe head. The optics system is configured such that chief rays of the light before entering the probe head are divergent to each other, wherein an angle defined by a marginal ray of an outermost beam of the light is complementary to an angle defined by an extreme off-axis chief ray of the light with respect to the optical axis.