公开(公告)号：US20240206834A1

公开(公告)日：2024-06-27

申请号：US18520288

申请日：2023-11-27

Applicant: Siemens Healthcare GmbH ,  Dentsply Sirona Inc. ,  SIRONA Dental Systems GmbH

Inventor： Lars Lauer ,  Andreas Greiser ,  Stephan Biber ,  Gunnar Krüger ,  Daniel Rinck ,  Carmel Hayes ,  Kim Burzan ,  Johannes Ulrici

IPC: A61B6/00 ,  A61B46/10

CPC classification number: A61B6/4423 ,  A61B46/10 ,  A61B2046/205 ,  A61B2562/247

Abstract: The disclosure relates to a hygiene cover for preventing a contamination of a target surface of a medical imaging device. The hygiene cover is configured for reversibly attaching to the target surface of the medical imaging device and/or a body region of a patient, and the reversible attachment is configured to provide for maintaining a predefined relative position of the hygiene cover to the medical imaging device.

公开(公告)号：US20250098979A1

公开(公告)日：2025-03-27

申请号：US18892801

申请日：2024-09-23

Applicant: Siemens Healthineers AG ,  Dentsply Sirona Inc. ,  SIRONA Dental Systems GmbH

Inventor： Andreas Greiser ,  Lars Lauer ,  Gunnar Krüger ,  Carmel Hayes ,  Stephan Biber ,  Kim Burzan ,  Johannes Ulrici

IPC: A61B5/055 ,  A61B5/00

Abstract: Techniques are described for carrying out a dental magnetic resonance imaging examination of a field-of-view within a subject, the field-of-view including a dental area of the subject. The techniques include determining whether a metallic object is present within or near the field-of-view, initiating a standard examination workflow if it has been determined that no metallic object is present within or near the field-of-view, and initiating a modified examination workflow that is different from the standard examination workflow if it has been determined that a metallic object is present within or near the field-of-view, and carrying out the standard examination workflow or the modified examination workflow.

公开(公告)号：US12263023B2

公开(公告)日：2025-04-01

申请号：US17780107

申请日：2020-11-27

Applicant: DENTSPLY SIRONA Inc.

Inventor： Johannes Ulrici ,  Kai Stannigel ,  Wolf Blecher

IPC: A61B6/03 ,  A61B6/00 ,  A61B6/06 ,  A61B6/40 ,  G21K1/10 ,  A61B6/02 ,  A61B6/10 ,  A61B6/50

Abstract: A 3D X-ray device including an X-ray detector, an X-ray source and a computer. The X-ray detector and the X-ray source are moved about an object volume to be recorded on movement paths with a rotation of at least 185°. A number of X-ray projection images are recorded from different directions. X-rays irradiate the object volume in one of the irradiation directions and are captured by the detector. A 3D X-ray image of the object volume is calculated from the recorded X-ray projection images by a reconstruction method. The X-ray detector is arranged asymmetrically relative to a central axis through a center of rotation of the 3D X-ray device. A first fan beam and an opposite second fan beam rotated 180° form an overlap region. At least one X-ray filter is placed between the X-ray source and the object volume for attenuating an X-ray dose inside the overlap region.

公开(公告)号：US20240377487A1

公开(公告)日：2024-11-14

申请号：US18692645

申请日：2022-08-22

Applicant: Siemens Healthineers AG ,  Dentsply Sirona Inc. ,  SIRONA Dental Systems GmbH

Inventor： Andreas Greiser ,  Johannes Ulrici ,  Florian Odoj ,  Marco Geißner

IPC: G01R33/34 ,  A61B5/055 ,  G01R33/28

Abstract: A local coil including an antenna, base element, holding element, first and second guide mechanisms, and safety mechanism. The antenna receives high-frequency signals in a frequency range and power range of a magnetic resonance measurement and is mechanically connected to the holding element. The base element holds the holding element together with the antenna in a position for use on a diagnostically relevant body region of a patient. The first guide mechanism is mechanically connected to the base element and the holding element and positions the holding element variably relative to the base element. The second guide mechanism is mechanically connected to the holding element and the antenna and positions the antenna variably relative to the holding element. The safety mechanism prevents a collision between the antenna and the patient during a transfer of the holding element from an open position into a closed position using the first guide mechanism.

公开(公告)号：US10346957B2

公开(公告)日：2019-07-09

申请号：US15571073

申请日：2016-05-09

Applicant: DENTSPLY SIRONA inc.

Inventor： Johannes Ulrici ,  Ulrich Schulze-Ganzlin ,  Ciamak Abkai

IPC: G06T5/00 ,  G06T11/00 ,  G06T7/30 ,  G06T7/00 ,  G06T3/40

Abstract: In a method for image enhancement of image data of a dental image generation system, comprising a first image generating unit (205, 210) for producing two-dimensional image data and a second image generating unit (250, 255) for producing three-dimensional image data, wherein for an object to be examined (220, 222) the image generation system provides both two-dimensional image data and three-dimensional image data, it is in particular provided that the two-dimensional image data and the three-dimensional image data are merged in such a way that the image quality and/or the information content of the two-dimensional image data or of the three-dimensional image data is improved.

公开(公告)号：US20240354944A1

公开(公告)日：2024-10-24

申请号：US18640187

申请日：2024-04-19

Applicant: Siemens Healthineers AG ,  Dentsply Sirona Inc. ,  SIRONA Dental Systems GmbH

Inventor： Lars Lauer ,  Andreas Greiser ,  Kim Burzan ,  Stefan Wundrak ,  Johannes Ulrici ,  Tim Braun

IPC: G06T7/00 ,  G06T3/40

CPC classification number: G06T7/0012 ,  G06T3/40 ,  G06T2207/10088 ,  G06T2207/30036

Abstract: A magnetic resonance system may include a magnetic resonance device, an optical imaging device, and a controller. The controller may control the magnetic resonance device to acquire magnetic resonance image data from an object inside an oral cavity of a patient and/or control the optical imaging device to acquire optical data from the object inside the oral cavity of the patient. The controller (e.g., a processor of the controller) may merge the optical data with the magnetic resonance image data.

公开(公告)号：US20240090791A1

公开(公告)日：2024-03-21

申请号：US18369245

申请日：2023-09-18

Applicant: Siemens Healthcare GmbH ,  Dentsply Sirona Inc. ,  SIRONA Dental Systems GmbH

Inventor： Andreas Greiser ,  Johannes Ulrici ,  Kim Burzan ,  Gunnar Krüger ,  Lars Lauer ,  Daniel Rinck ,  Carmel Hayes

IPC: A61B5/055 ,  G06T7/00 ,  G06T7/70

CPC classification number: A61B5/055 ,  G06T7/0012 ,  G06T7/70 ,  G06T2207/10088 ,  G06T2207/20104 ,  G06T2207/30036

Abstract: In a method for masking one or more regions surrounding an anatomical region of interest for each of one or more MRI images obtained from MRI imaging data, the one or more regions surrounding the anatomical region of interest are masked based on control data determined for identifying the anatomical region of interest in the MRI imaging data. The MRI imaging data may be obtained during an MRI exam of a patient for a measurement volume including the anatomical region of interest. The anatomical region of interest may be ascertained before performing the MRI exam.