公开(公告)号：US11759295B2

公开(公告)日：2023-09-19

申请号：US17209166

申请日：2021-03-22

Applicant: Align Technology, Inc.

Inventor： Michael Sabina ,  Avi Kopelman ,  Eric Kuo ,  Gilad Elbaz ,  Assaf Weiss ,  Doron Malka ,  Ofer Saphier ,  Eliahou Franklin Nizard ,  Ido Tishel ,  Shai Ayal ,  Maayan Moshe

IPC: A61C9/00 ,  A61B1/00 ,  A61B1/06 ,  A61B1/24 ,  G06T19/00 ,  A61B5/00 ,  A61B6/14 ,  A61C7/00 ,  A61C13/00 ,  A61C13/34

CPC classification number: A61C9/0053 ,  A61B1/000094 ,  A61B1/000096 ,  A61B1/00172 ,  A61B1/00186 ,  A61B1/00194 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/24 ,  A61B5/0086 ,  A61B5/0088 ,  A61B6/145 ,  A61C7/002 ,  A61C13/0004 ,  G06T19/00 ,  A61B5/0062 ,  A61B5/0066 ,  A61B5/4547 ,  A61C13/0019 ,  A61C13/34 ,  G06T2200/24 ,  G06T2207/30036 ,  G06T2210/41

Abstract: Methods and apparatuses for taking, using and displaying three-dimensional (3D) volumetric models of a patient's dental arch. A 3D volumetric model may include surface (e.g., color) information as well as information on internal structure, such as near-infrared (near-IR) transparency values for internal structures including enamel and dentin.

公开(公告)号：US11672631B2

公开(公告)日：2023-06-13

申请号：US17740113

申请日：2022-05-09

Applicant: Align Technology, Inc.

Inventor： Tal Verker ,  Adi Levin ,  Ofer Saphier ,  Maayan Moshe

IPC: G01J3/06 ,  A61C9/00 ,  G01B11/24 ,  G02B23/24 ,  G02B21/00 ,  G02B27/00 ,  G02B23/26

CPC classification number: A61C9/0066 ,  G01B11/24 ,  G02B21/006 ,  G02B23/2446 ,  G02B23/2461 ,  G02B23/26 ,  G02B27/0025

Abstract: A method comprises obtaining reference data about a 3D calibration object, the reference data comprising known coordinates for a plurality of points on the object, and obtaining measurement data comprising measurements for the plurality of points on the object, the measurement data having been generated based on scanning of the object by an uncalibrated intraoral scanner. The method comprises comparing the measurement data to the reference data to determine differences therebetween and applying the determined differences between the measurement data and the reference data for the plurality of points to a function to generate a compensation model that compensates for one or more inaccuracies of the intraoral scanner. The compensation model is then stored, wherein the compensation model causes the intraoral scanner to be a calibrated intraoral scanner and is usable to correct measurement errors of the intraoral scanner caused by the one or more inaccuracies of the intraoral scanner.

公开(公告)号：US11563929B2

公开(公告)日：2023-01-24

申请号：US16910042

申请日：2020-06-23

Applicant: Align Technology, Inc.

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

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

Abstract: A method for generating a 3D image includes driving structured light projector(s) to project a pattern of light on an intraoral 3D surface, and driving camera(s) to capture images, each image including at least a portion of the projected pattern, each one of the camera(s) comprising an array of pixels. A processor compares a series of images captured by each camera and determines which of the portions of the projected pattern can be tracked across the images. The processor constructs a three-dimensional model of the intraoral three-dimensional surface based at least in part on the comparison of the series of images. Other embodiments are also described.

公开(公告)号：US11426053B2

公开(公告)日：2022-08-30

申请号：US16583091

申请日：2019-09-25

Applicant: Align Technology, Inc.

Inventor： Sergei Ozerov ,  Ofer Saphier ,  Avi Kopelman ,  Adi Levin ,  Pavel Razumovskiy ,  Michael Sabina ,  Mikhail Dyachenko ,  René M. Sterental ,  Partha Dey ,  Roman A. Roschin ,  Anton Gavrilov ,  Leonid Vyacheslavovich Grechishnikov

IPC: A61B1/00 ,  A61B1/04 ,  A61B1/24 ,  A61B6/14 ,  A61B6/00 ,  A61B5/00 ,  A61B5/11 ,  G16H30/40 ,  A61C7/00 ,  G16H50/50 ,  A61B1/06

Abstract: Processing logic makes a comparison between first image data and second image data of a dental arch and determines a plurality of spatial differences between a first representation of the dental arch in the first image data and a second representation of the dental arch in the second image data. The processing logic determines that a first spatial difference is attributable to scanner inaccuracy and that a second spatial difference is attributable to a clinical change to the dental arch. The processing logic generates a third representation of the dental arch that is a modified version of the second representation, wherein the first spatial difference is removed in the third representation, and wherein the third representation comprises a visual enhancement that accentuates the second spatial difference.

公开(公告)号：US20200214811A1

公开(公告)日：2020-07-09

申请号：US16823156

申请日：2020-03-18

Applicant: Align Technology, Inc.

Inventor： Tal Verker ,  Adi Levin ,  Ofer Saphier ,  Maayan Moshe

IPC: A61C9/00 ,  G02B21/00 ,  G02B23/24 ,  G01B11/24 ,  G02B23/26 ,  G02B27/00

Abstract: A method of generating a three-dimensional virtual model of an intraoral object includes capturing, by an intraoral scanner for performing intraoral scans, surface scan data of the intraoral object while changing a position of at least one lens of focusing optics of the intraoral scanner, wherein the surface scan data comprises depth data for a plurality of points of the intraoral object. The method further includes adjusting the depth data for one or more of the plurality of points based at least in part on a value associated with a temperature of at least a portion of the imaging apparatus. The method further includes generating the three-dimensional virtual model of the intraoral object using the adjusted depth data.

公开(公告)号：US10528636B2

公开(公告)日：2020-01-07

申请号：US15672248

申请日：2017-08-08

Applicant: Align Technology, Inc.

Inventor： Gilad Elbaz ,  Erez Lampert ,  Yossef Atiya ,  Avi Kopelman ,  Ofer Saphier ,  Maayan Moshe ,  Shai Ayal

IPC: A61B1/24 ,  A61B5/00 ,  A61C9/00 ,  G06T7/55 ,  G06T7/73 ,  G06T15/08 ,  H04N13/221 ,  H04N13/246 ,  H04N13/254 ,  H04N13/257 ,  H04N13/271 ,  G06F16/9535 ,  G06T17/00 ,  G06Q50/00

Abstract: Methods and apparatuses for generating a model of a subject's teeth. Described herein are intraoral scanning methods and apparatuses for generating a three-dimensional model of a subject's intraoral region (e.g., teeth) including both surface features and internal features. These methods and apparatuses may be used for identifying and evaluating lesions, caries and cracks in the teeth. Any of these methods and apparatuses may use minimum scattering coefficients and/or segmentation to form a volumetric model of the teeth.

公开(公告)号：US09675430B2

公开(公告)日：2017-06-13

申请号：US14825173

申请日：2015-08-13

Applicant: Align Technology, Inc.

Inventor： Tal Verker ,  Adi Levin ,  Ofer Saphier ,  Maayan Moshe

IPC: G01B11/24 ,  A61C9/00 ,  G02B23/24 ,  G02B27/00 ,  G02B23/26

CPC classification number: A61C9/0066 ,  G01B11/24 ,  G02B21/006 ,  G02B23/2446 ,  G02B23/2461 ,  G02B23/26 ,  G02B27/0025

Abstract: A confocal imaging apparatus includes an illumination module to generate an array of light beams. Focusing optics perform confocal focusing of an array of light beams onto a non-flat focal surface and direct the array of light beams toward a three dimensional object to be imaged. A translation mechanism adjusts a location of at least one lens to displace the non-flat focal surface along an imaging axis. A detector measures intensities of an array of returning light beams that are reflected off of the three dimensional object and directed back through the focusing optics. Intensities of the array of returning light beams are measured for locations of the at least one lens for determination of positions on the imaging axis of points of the three dimensional object. Detected positions of one or more points are adjusted to compensate for the non-flat focal surface.

公开(公告)号：US20250143850A1

公开(公告)日：2025-05-08

申请号：US19019046

申请日：2025-01-13

Applicant: Align Technology, Inc.

Inventor： Tal Verker ,  Adi Levin ,  Ofer Saphier ,  Maayan Moshe

IPC: A61C9/00 ,  G01B11/24 ,  G02B21/00 ,  G02B23/24 ,  G02B23/26 ,  G02B27/00

Abstract: A system includes a scanner comprising a light source to emit light onto an object, and an image sensor to form a sequence of images of the object under a plurality of different conditions. The system includes a computing device to perform a calibration of the scanner by determining, from the sequence of images, differences in measured coordinates for a plurality of points on the object under the plurality of different conditions, generating or updating one or more compensation models that compensate for inaccuracies of the intraoral scanner based at least in part on the differences in the measured coordinates for the plurality of points of the object between the plurality of different conditions, and storing the one or more compensation models. The one or more compensation models cause the intraoral scanner to be a calibrated intraoral scanner.

公开(公告)号：US20250127389A1

公开(公告)日：2025-04-24

申请号：US18913038

申请日：2024-10-11

Applicant: Align Technology, Inc.

Inventor： Yossef Y. Atiya ,  Ido Tishel ,  Avi Kopelman ,  Ofer Saphier ,  Nadav Fain ,  Eddy Pincu ,  Tal Verker ,  Nir Makmel ,  Asaf Pellman

IPC: A61B1/24 ,  A61B1/00

Abstract: An intraoral scanner includes a probe housing disposed at a distal end of an elongate wand. The probe housing forms an interior volume. The intraoral scanner further includes a distributed projector disposed in the interior volume. The distributed projector includes a diode module including a laser diode configured to emit a beam of light. The distributed projector further includes a lens module including a first pattern generating optical element configured to generate structured light based on at least a first portion of the beam of light. The lens module is disposed at least a threshold distance from the diode module.

公开(公告)号：US12251186B2

公开(公告)日：2025-03-18

申请号：US18449660

申请日：2023-08-14

Applicant: Align Technology, Inc.

Inventor： Ariel Shalev ,  Eran Green ,  Zakhar Ginzburg ,  Matthew Durban ,  Roee Gorfinkel ,  Ofer Saphier ,  Tal Verker ,  Nir Makmel ,  Eran Ishay ,  Raphael Levy

IPC: A61B6/51 ,  A61B46/00 ,  A61B46/17

Abstract: Removable barrier devices for covering an intraoral scanner. The barrier device includes a cover that is adapted to fit over a probe of the scanner. The cover includes a distal portion having walls defining an internal cavity for accommodating a distal end of the probe and formed of a first material, wherein at least one of the walls includes at least one window for allowing transmission of an optical signal between the probe and an external environment. The cover also includes a proximal portion coupled to the distal portion. The barrier device also includes a flexible sleeve adapted to cover a handle of the scanner, the flexible sleeve coupled to the proximal portion of the cover at an interface region configured to prevent fluid from passing through the barrier device between the cover and the sleeve.