公开(公告)号：US20230190425A1

公开(公告)日：2023-06-22

申请号：US18067047

申请日：2022-12-16

Applicant: 3SHAPE A/S

Inventor： Finn HANSEN ,  Mads Grønlund ANDERSEN

IPC: A61C9/00 ,  G01B11/25

CPC classification number: A61C9/006 ,  G01B11/2518 ,  G06T2207/30036

Abstract: An intra-oral handheld 3D optical scanner includes an illumination module configured to generate an illumination signal to illuminate a dental object, and an image sensor configured to obtain data in response to the illumination of the dental object. The data is configured to be used to generate a 3D dental model of the dental object. The scanner also includes a lens housing including an optical lens that is configured to direct the illuminating signal towards the dental object, and a drive including a shaft that is configured to rotate around a rotation axis. The scanner also includes a guide extending continuously along at least a part of a length of the shaft and a spring, arranged intermediate between the lens housing and the guide, configured to exert a spring force towards the guide.

公开(公告)号：US20230190424A1

公开(公告)日：2023-06-22

申请号：US18067108

申请日：2022-12-16

Applicant: 3SHAPE A/S

Inventor： Morten Bo BONDING ,  Sergey MESCHERINOV

IPC: A61C9/00

CPC classification number: A61C9/0053 ,  A61C9/0006

Abstract: A three-dimensional optical scanning system for scanning a three-dimensional dental object, the system including a first scanning station configured to receive a first three-dimensional dental object, and further configured to rotate around a first axis during the scanning; and an imaging unit including at least one camera and configured to rotate around an imaging unit axis during the scanning, wherein the optical scanning system is configured such that the imaging unit acquires a plurality of two-dimensional images of the first three-dimensional dental object corresponding to a set of predefined static relative positions between the imaging unit and the first scanning station for generating a first three-dimensional digital representation of the first three-dimensional dental object.

公开(公告)号：US11671582B2

公开(公告)日：2023-06-06

申请号：US17742115

申请日：2022-05-11

Applicant: 3SHAPE A/S

Inventor： Rune Fisker ,  Henrik Öjelund ,  Rasmus Kjaer ,  Mike Van Der Poel ,  Arish A. Qazi ,  Karl-Josef Hollenbeck

IPC: H04N13/296 ,  A61B5/00 ,  G01B11/25 ,  A61B5/107

CPC classification number: H04N13/296 ,  A61B5/0068 ,  A61B5/1077 ,  G01B11/2513 ,  G01B11/2518 ,  A61B5/1075 ,  A61B5/1076 ,  A61B5/4547 ,  G01B2210/58

Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.

公开(公告)号：US11622102B2

公开(公告)日：2023-04-04

申请号：US17340806

申请日：2021-06-07

Applicant: 3SHAPE A/S

Inventor： Rune Fisker ,  Henrik Öjelund ,  Rasmus Kjaer ,  Mike Van Der Poel ,  Arish A. Qazi ,  Karl-Josef Hollenbeck

IPC: H04N13/296 ,  A61B5/00 ,  G01B11/25 ,  A61B5/107

Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.

公开(公告)号：US11553985B2

公开(公告)日：2023-01-17

申请号：US15328643

申请日：2015-07-06

Applicant: 3Shape A/S

Inventor： Rune Fisker ,  Birk Ploennigs ,  Thomas Hedegaard

IPC: A61C1/08 ,  A61C1/00 ,  A61B34/10 ,  A61B17/17

Abstract: A drill guide assembly used to guide a drill into the jawbone of a patient during dental surgery includes at least one through going guide bore for guiding the drill, at least one attachment for securing a part of the drill guide assembly to the jaw of the patient during surgery, wherein the drill guide assembly includes a first part including the at least one first through going guide bore, the at least one first attachment and at least a first reference area for referring the first part to a first anatomical feature of the patient, a second part including a second reference area for referring the second part to a second anatomical feature of the patient, and a guiding structure for guiding the first part and the second into a desired configuration.

公开(公告)号：US20230005196A1

公开(公告)日：2023-01-05

申请号：US17782253

申请日：2020-12-04

Applicant: 3SHAPE A/S

Inventor： Marat KHAITOV ,  Karl-Josef HOLLENBECK

IPC: G06T11/20 ,  A61C13/34 ,  G06T7/13

Abstract: According to an embodiment, a computer-implemented method for generating an edge curve to facilitate manufacture of at least a portion of a dental device is disclosed. The method includes identifying at least one tooth reference point for each of at least two teeth on a dental model; identifying at least one offset point corresponding to each of the at least one tooth reference points such that the at least one offset point is on a gingival surface of the dental model and located outside an interproximal area; and generating the edge curve by connecting the offset points such that the edge curve is outside the interproximal area and on the gingival surface.

公开(公告)号：US11510759B2

公开(公告)日：2022-11-29

申请号：US16140630

申请日：2018-09-25

Applicant: 3Shape A/S

Inventor： Rune Fisker

IPC: A61C8/00 ,  A61C13/00 ,  A61C13/225 ,  A61C13/34 ,  G16H20/40 ,  A61C13/01 ,  A61C13/267

Abstract: A system and a method for providing a model of a superstructure joining a denture and a corresponding dental arch, the method includes the steps of obtaining a first 3D representation of at least a part of a preliminary model of the denture, obtaining a second 3D representation of at least a part of the dental arch comprising dental implants, and generating a model of a superstructure based on the first 3D representation, the second 3D representation, dental implant positions and dental implant orientations.

公开(公告)号：US11478344B2

公开(公告)日：2022-10-25

申请号：US16580167

申请日：2019-09-24

Applicant: 3SHAPE A/S

Inventor： Rune Fisker ,  Lars Henriksen ,  Kristian Evers Hansen

IPC: A61C19/05 ,  A61C11/00 ,  A61C9/00 ,  A61C13/107

Abstract: Disclosed is a method for determining the relative arrangement of patient's jaws in a bite position when the patient's occlusion is not defined by natural teeth alone, where the method includes a step of obtaining a digital 3D representation including both surface data relating to dental tissue in one of the patient's jaws and surface data relating to a scan appliance arranged in relation to the jaw, where the scan appliance is configured for at least partly defining the patient's occlusion.

公开(公告)号：US20220265403A1

公开(公告)日：2022-08-25

申请号：US17742955

申请日：2022-05-12

Applicant: 3SHAPE A/S

Inventor： Bo ESBECH ,  Rune FISKER ,  Lars HENRIKSEN ,  Tais CLAUSEN

IPC: A61C13/08 ,  G01J3/50

Abstract: Disclosed in a method, a user interface and a system for use in determining shade of a patient's tooth, wherein a digital 3D representation including shape data and texture data for the tooth is obtained. A tooth shade value for at least one point on the tooth is determined based on the texture data of the corresponding point of the digital 3D representation and on known texture values of one or more reference tooth shade values.

公开(公告)号：US20220172430A1

公开(公告)日：2022-06-02

申请号：US17434205

申请日：2020-02-25

Applicant: 3SHAPE A/S

Inventor： Jens Peter TRÄFF ,  Jens Christian JØRGENSEN ,  Alejandro Alonso DIAZ ,  Mathias Bøgh STOKHOLM ,  Asger Vejen HOEDT

IPC: G06T17/20 ,  G06T11/00 ,  G06T9/00 ,  G06V10/774 ,  G06T19/20 ,  G06T7/00 ,  G16H30/40 ,  A61C9/00 ,  A61C7/00 ,  A61C13/00

Abstract: A computer-implemented method for generating a 2D or 3D object, including training an autoencoder on a first set of training data to identify a first set of latent variables and generate a first set of output data; training an hourglass predictor on a second set of training data, where the hourglass predictor encoder converts a set of related but different training input data to a second set of latent variables, which decode into a second set of output data of the same type as the first set of output data; and using the hourglass predictor to predict a 2D or 3D object of the same type as the first set of output data based on a 2D or 3D object of the same type as the second set of input data.