公开(公告)号：US20170333164A1

公开(公告)日：2017-11-23

申请号：US15522787

申请日：2015-10-29

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Thomas OSKAM

IPC: A61C13/00 ,  A61C13/08

CPC classification number: A61C13/0004 ,  A61C13/08

Abstract: The invention relates to a method for generating a digital model (6) of a dental replacement part, formed by a dental prosthesis and a prosthesis base having a rear protection plate, and for producing a dental replacement part of this type, wherein, in a digital model (1) of a jawbone to be provided and a digital dental prosthesis model (2) positioned therein, an interface (3) is automatically and/or manually marked in the region of the dental prosthesis model (2), a rear protection plate model (4) is formed by the interface (3), an abutting surface (1′) of the digital jawbone model (1) and a region of a surface (2′) of the dental prosthesis model (2) joining the surface (1′) and the interface (3), a revised dental prosthesis model (5) is formed from the digital dental prosthesis model (2) by adopting the interface (3) as a surface, and the digital model (6) of the dental replacement part is created from the rear protection plate model (4) and the revised dental prosthesis model (5).

公开(公告)号：US20170307711A1

公开(公告)日：2017-10-26

申请号：US15517282

申请日：2015-10-07

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Stefan WUNDRAK ,  Volker RASCHE

IPC: G01R33/561 ,  G01R33/565 ,  G01R33/48

CPC classification number: G01R33/5614 ,  G01R33/4824 ,  G01R33/56518

Abstract: Disclosed herein is a method for generating an MRI image in which a radial or spiral k-chamber path with a constant angular increment Psi is used to take an MRI image, the angular increment Psi being in the angular range of between 5-55 degrees or being in the corresponding supplementary angle Psi′ and is selected according to the formula PsiN,M=pi/(N+1/(M+tau−1)). Alternatively, for an angular increment Psi which deviates from the angle increment of the optimal distribution of n radial profiles Psiopt=180°/n, the minimum scanning efficiency of the angular increment Psi for n>21 profiles is greater than 0.95, the angular increment Psi is in an angular range of 5° to less than 68.7537°, in particular between 5-55 degrees or in the corresponding supplementary angle Psi′. Compared to the arrangement of the radial or spiral profile using the golden angle of 111.24°, the angle increments calculated according to the above formula lead to lower eddy current artifacts, for example during the use of a b-SSFP-pulse sequence.

公开(公告)号：USD793557S1

公开(公告)日：2017-08-01

申请号：US29546065

申请日：2015-11-18

Applicant: Sirona Dental Systems GmbH

Designer： Dieter Thoma ,  Stefan Maier

公开(公告)号：US09672641B2

公开(公告)日：2017-06-06

申请号：US14795293

申请日：2015-07-09

Applicant: Sirona Dental Systems GmbH

Inventor： Ciamak Abkai ,  Kai Lindenberg

IPC: G06K9/00 ,  G06T11/00 ,  G06T15/08 ,  G06T15/40 ,  G06T5/00 ,  G06T7/00 ,  A61B6/03 ,  A61B6/14 ,  A61B6/00 ,  A61C13/00

CPC classification number: G06T11/008 ,  A61B6/032 ,  A61B6/14 ,  A61B6/4085 ,  G06T5/002 ,  G06T7/0012 ,  G06T15/08 ,  G06T15/40 ,  G06T2200/04 ,  G06T2207/10081 ,  G06T2207/30036 ,  G06T2207/30196

Abstract: A method, apparatus, and computer readable medium for removing an unwanted object from an image volume are provided. Volumetric data of an object of study is generated in a radiographic scan. Volumetric data of the unwanted object is obtained. The two sets of volumetric data are registered in a common coordinate system. The unwanted object is removed from the volumetric data of the object of study to create modified volumetric data of the object of study. Data from voxels surrounding the removed unwanted object may be used to populate voxels corresponding to the unwanted object with interpolated data. A plurality of forward projections are performed on the modified volumetric data of the object of study, and a tomogram with the unwanted object removed is constructed.

公开(公告)号：US09554870B2

公开(公告)日：2017-01-31

申请号：US14415511

申请日：2013-07-17

Applicant: Sirona Dental Systems GmbH

Inventor： Matthias Rein ,  Siegfried Goisser ,  Metin Ertugrul ,  Ralf Sutter ,  Alexander Muhlbeyer

IPC: A61C1/05

CPC classification number: A61C1/05

Abstract: A dentists' preparation instrument (1) comprises a turbine (4) for driving a tool (3) using compressed air, and a rotor (6) that is arranged in a turbine compartment (5), rotates about a longitudinal axis (7), and has blades (11) extending to a face (13) of the rotor (6). The turbine compartment (5) has a discharge port (12) for the compressed air towards a returning air duct (8). Said discharge port (12) is disposed in such a way that both the face (13) of the rotor (6) and parts of the blades (11) sweep past the discharge port (12) as the rotor rotates about the longitudinal axis (7). For deceleration purposes, the rotor (6) has a deceleration contour (9) on the face (13), said deceleration contour being formed by projections (14), and the turbine compartment (5) has a deceleration contour chamber (15) inside which the deceleration contour (9) is accommodated. The discharge port (12) in part also extends across the deceleration contour chamber (15).

Abstract translation: 牙医的准备仪器（1）包括用于使用压缩空气驱动工具（3）的涡轮机（4）和布置在涡轮机室（5）中的转子（6）围绕纵向轴线（7）旋转， 并且具有延伸到转子（6）的面（13）的叶片（11）。 涡轮机室（5）具有用于压缩空气朝向返回空气管道（8）的排出口（12）。 所述排出口（12）的设置方式使转子（6）的面（13）和叶片（11）的一部分随着转子围绕纵向轴线旋转而扫过排出口（12） 7）。 为了减速，转子（6）在面（13）上具有减速轮廓（9），所述减速轮廓由突起（14）形成，涡轮室（5）内部具有减速轮廓室（15） 减速轮廓（9）被容纳。 排出口（12）也部分延伸穿过减速轮廓室（15）。

公开(公告)号：US20160317257A1

公开(公告)日：2016-11-03

申请号：US15105530

申请日：2014-12-18

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Peter FORNOFF ,  Christian SCHMIDT

IPC: A61C13/00 ,  F27B17/02 ,  A61C13/20

CPC classification number: A61C5/77 ,  A61C13/0004 ,  A61C13/20 ,  F27B17/025

Abstract: The invention relates to a method for planning a heat treatment of a dental prosthesis part (1), in which a 3D model (9) of the dental prosthesis part to be produced (1) already exists. A temperature profile (16) for the heat treatment of the dental prosthesis part (1) is automatically determined by a computer (17) as a function of determined geometric parameters (10, 11, 12, 13) of the dental prosthesis part to be produced (1) and/or of determined material parameters of the dental prosthesis part to be produced (1).

Abstract translation: 本发明涉及一种用于规划牙科假体部件（1）的热处理的方法，其中已经存在待制造的牙科假体部件的3D模型（9）（1）。 用于牙科假体部件（1）的热处理的温度曲线（16）由计算机（17）自动确定，作为所述牙科假体部件的确定的几何参数（10,11,12,13）的函数 （1）和/或要生产的假牙部件的确定的材料参数（1）。

公开(公告)号：US20160231551A1

公开(公告)日：2016-08-11

申请号：US15021588

申请日：2014-09-11

Applicant: Sirona Dental Systems GmbH

Inventor： Markus Berner

IPC: G02B21/00 ,  A61C9/00 ,  G02B27/10 ,  G02F1/01 ,  G02B5/30

CPC classification number: G02B21/0032 ,  A61B5/0066 ,  A61B5/0068 ,  A61B5/1077 ,  A61C9/006 ,  G02B5/3083 ,  G02B21/0028 ,  G02B21/004 ,  G02B21/008 ,  G02B21/0092 ,  G02B21/365 ,  G02B21/367 ,  G02B27/10 ,  G02F1/0136 ,  G02F1/03 ,  G02F1/0311

Abstract: The invention relates to an optical system for generating a pattern which changes over time for a confocal microscope comprising a light source arrangement (1, 12a, 12b, 12c) from which light beams travel to an object (7) which reflects the light beams, a beam splitter (3) for allowing passage of the light beams proceeding from the light source arrangement (1, 12a, 12b, 12c) in the direction of the object (7) and for deflecting the light beams reflected by the object (7) in a focal plane in the direction of a detector (8) with a detector pattern for detecting an image of the object (7) and a lens arrangement (4a, 4b) between the beam splitter (3) and the object (7). In particular the light source arrangement (1, 12a, 12b, 12c) has at least one light source (1) and an arrangement (12a, 12b, 12c) which switches over the light beams emitted by the at least one light source (1) with respect to their direction of polarization for generating a changing projector pattern (2) without moving a mask with the projector (2) pattern.

Abstract translation: 本发明涉及一种用于产生随着时间推移的图案的光学系统，该共聚焦显微镜包括光源装置（1,12a，12b，12c），光束从该光源装置传播到反射光束的物体（7） 用于允许沿着物体（7）的方向从光源装置（1,12a，12b，12c）进入的光束通过并用于偏转由物体（7）反射的光束的分束器（3） 在具有用于检测物体（7）的图像的检测器图案的检测器（8）的方向的焦平面和分束器（3）与物体（7）之间的透镜装置（4a，4b）之间。 特别地，光源装置（1,12a，12b，12c）具有至少一个光源（1）和用于切换由至少一个光源（1）发射的光束的装置（12a，12b，12c） ）相对于它们的偏振方向产生改变的投影仪图案（2），而不用投影仪（2）图案移动掩模。

公开(公告)号：US20160157796A1

公开(公告)日：2016-06-09

申请号：US14905750

申请日：2014-07-16

Applicant: SIRONA DENTAL SYSTEMS GMBH

Inventor： Kai Lindenberg ,  Stefan Wundrak

IPC: A61B6/00 ,  A61B6/06 ,  A61B6/14

CPC classification number: A61B6/4266 ,  A61B6/032 ,  A61B6/06 ,  A61B6/14 ,  A61B6/405 ,  A61B6/4435 ,  A61B6/463 ,  A61B6/466 ,  A61B6/469 ,  A61B6/488 ,  A61B6/5217 ,  A61B6/542 ,  A61F13/20 ,  G21K1/046

Abstract: The invention relates to a method for capturing a three-dimensional x-ray image (1) of an object (2) by means of an x-ray system (3) comprising an x-ray source (4), an x-ray detector (5) and a shutter matrix (7), the shutter matrix (7) having a plurality of shutter elements (18), the x-ray absorption properties of which are controllable. In the first method step, at least one region (21) to be captured of the object (2) is defined, wherein settings are planned for the individual shutter elements (18) of the shutter matrix (7) for different rotary positions (14, 15, 16, 17), taking into account the defined area (21) to be captured. Then, a plurality of two-dimensional x-ray images is captured from the planned rotary positions (14, 15, 16, 17) during at least one partial rotation (9) using the planned settings of the shutter elements (18), wherein the overall three-dimensional x-ray image (1) of the area (21) to be captured is generated from the individual two-dimensional x-ray images.

Abstract translation: 本发明涉及一种用于通过包括x射线源（4）的X射线系统（3），X射线源（X）和X射线源（X）的X射线系统（3）来捕获物体（2）的三维X射线图像 检测器（5）和快门矩阵（7），快门矩阵（7）具有多个快门元件（18），其X射线吸收特性是可控的。 在第一方法步骤中，限定要被捕获的物体（2）的至少一个区域（21），其中对于不同的旋转位置（14）的快门矩阵（7）的各个快门元件（18） ，15,16,17），考虑到被捕获的定义区域（21）。 然后，使用快门元件（18）的计划设置在至少一个部分旋转（9）期间从计划的旋转位置（14,15,16,17）捕获多个二维X射线图像，其中 从单独的二维x射线图像生成要捕获的区域（21）的整体三维X射线图像（1）。

公开(公告)号：US20160151131A1

公开(公告)日：2016-06-02

申请号：US15014468

申请日：2016-02-03

Applicant: Sirona Dental Systems GmbH

Inventor： Axel Schwotzer ,  Volker Schmidt

IPC: A61C9/00 ,  A61B1/00 ,  A61C1/08 ,  A61B1/24 ,  A61B1/04

CPC classification number: A61C9/006 ,  A61B1/00163 ,  A61B1/00193 ,  A61B1/04 ,  A61B1/0646 ,  A61B1/0669 ,  A61B1/24 ,  A61B5/0084 ,  A61B5/4547 ,  A61C1/088

Abstract: A 3-D camera for obtaining an image of at least one surface of at least one object. The camera comprises a light source, arranged to illuminate the object, wherein a light beam emitted from the light source defines a projection optical path. The camera also includes at least one first aperture having a first predetermined size, interposed in the projection optical path such that the light beam passes through it. An image sensor receives light back-scattered by the object, the back-scattered light defining an observation optical path. At least one second aperture having a second predetermined size, is interposed in the observation optical path such that the back-scattered light passes through it. In one example embodiment of the invention, the first predetermined size is greater than the second predetermined size, and at least one optic is arranged in both the projection and observation optical paths.

Abstract translation: 一种用于获得至少一个物体的至少一个表面的图像的3-D照相机。 相机包括被布置成照亮物体的光源，其中从光源发射的光束限定投影光路。 照相机还包括具有第一预定尺寸的至少一个第一孔，插入在投影光路中，使得光束通过它。 图像传感器接收由物体反向散射的光，所述背散射光限定观察光路。 具有第二预定尺寸的至少一个第二孔被插入观察光路中，使得背散射光通过它。 在本发明的一个示例实施例中，第一预定尺寸大于第二预定尺寸，并且在投影和观察光路两者中布置至少一个光学元件。

公开(公告)号：US20160100919A1

公开(公告)日：2016-04-14

申请号：US14880577

申请日：2015-10-12

Applicant: Sirona Dental Systems GmbH

Inventor： Klaus Niewiadomski

IPC: A61C13/00 ,  G06K19/06

CPC classification number: A61C13/0022 ,  A61C13/0009 ,  G05B19/401 ,  G06K19/06046 ,  Y10T29/49567 ,  Y10T29/49568

Abstract: A blank for manufacturing molded dental components includes a blank body that includes tooth repairing material. A molded dental component is manufactured by removing portions of the tooth repairing material using a tool. The blank is encoded with at least one structure as a carrier of information regarding properties of the blank body. The at least one structure is arranged such that at least one of a position, dimensions, or a type of structure can be determined by sensing or measuring the blank. In this context, the position, the dimensions, or the type of the structure are embodied such that a value acquired during a determination of the above corresponds to information about a property of the blank body.

Abstract translation: 用于制造模制牙科部件的坯件包括包括牙修复材料的坯体。 通过使用工具去除牙齿修复材料的部分来制造成型的牙科部件。 空白编码有至少一个结构作为关于空白体的性质的信息的载体。 至少一个结构被布置成使得可以通过感测或测量坯件来确定结构的位置，尺寸或类型中的至少一个。 在这种情况下，结构的位置，尺寸或类型被实现为使得在上述确定期间获取的值对应于关于坯体的属性的信息。