公开(公告)号：US20230049019A1

公开(公告)日：2023-02-16

申请号：US17792000

申请日：2020-12-29

Applicant: CARESTREAM DENTAL LLC

Inventor： Jean-Marc INGLESE ,  David ROUDERGUES ,  Arnaud CAPRI ,  Subramanyan KRISHNAMOORTHY ,  Vincent LOUSTAUNEAU

IPC: A61B6/14 ,  A61B6/00

Abstract: An intraoral x-ray system mountable to a dentist’s office wall including components movable to compensate for defects in the wall’s flatness or the wall not being sufficiently perpendicular to the floor. The system also includes monitoring and compensation capabilities to compensate for drift in the position of the system’s x-ray source or patient movement before and during x-ray imaging, thereby avoiding the need for the taking of additional x-ray images and exposing the patient unnecessarily to extra x-ray dose. Additionally, the system further includes a data/signal processing unit that allows the x-ray source to be precisely moved along a predetermined trajectory and allows the system to perform computed tomosynthesis examinations of a patient. In addition, the x-ray source is attachable/detachable from the system’s robotic arm, with the system compensating automatically for the change in weight at the robotic arm’s end due to removal of the x-ray source.

公开(公告)号：US20220151576A1

公开(公告)日：2022-05-19

申请号：US17431743

申请日：2020-03-11

Applicant: CARESTREAM DENTAL LLC

Inventor： Krishnamoorthy SUBRAMANYAN ,  Vincent LOUSTAUNEAU ,  Jay S. SCHILDKRAUT ,  Jean-Marc INGLESE

IPC: A61B6/00 ,  A61B6/02 ,  A61B6/14 ,  A61B6/06 ,  A61B90/00

Abstract: An intraoral tomosynthesis imaging apparatus having an intraoral detector coupled to a frame or radio-opaque marker attached to its radiation facing surface without any frame attached, wherein the frame defines a target aperture for an incident radiation beam. An enclosure seats against the target aperture and houses at least one x-ray source configured to emit a radiation beam from each of a plurality of focal points within the enclosure A collimator is disposed to form a collimated radiation beam and direct the collimated beam through the target aperture and to the detector. A geometric calibration phantom having a plurality of radio-opaque markers is disposed in the path of the collimated beam. This arrangement is modified to operate as a regular intraoral imaging device by accommodating a high-power central source at the same or different distances as other sources from the detector and displacing the phantom from the field of view.

公开(公告)号：US20230371804A1

公开(公告)日：2023-11-23

申请号：US18087107

申请日：2022-12-22

Applicant: Carestream Dental LLC

Inventor： Jean-Marc INGLESE ,  Sylvie BOTHOREL ,  Vincent LOUSTAUNEAU ,  Donna RANKIN-PAROBEK

IPC: A61B1/24 ,  H04N5/32 ,  A61B6/02 ,  A61B6/03 ,  A61B6/14 ,  A61B6/00 ,  H04N23/698

CPC classification number: A61B1/24 ,  H04N5/32 ,  A61B6/025 ,  A61B6/032 ,  A61B6/145 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/027 ,  A61B6/4452 ,  H04N23/698 ,  A61B6/14 ,  A61B6/4233 ,  A61B6/4266 ,  A61B6/4441 ,  A61B6/501 ,  A61B6/5235 ,  A61B6/0421

Abstract: An extra-oral dental imaging apparatus for obtaining an image from a patient has a radiation source; a first digital imaging sensor that provides, for each of a plurality of image pixels, at least a first digital value according to a count of received photons that exceed at least a first energy threshold; a mount that supports the radiation source and the first digital imaging sensor on opposite sides of the patient's head; a computer in signal communication with the digital imaging sensor for acquiring a first two-dimensional image from the first digital imaging sensor; and a second digital imaging sensor that is alternately switched into place by the mount and that provides image data according to received radiation.

公开(公告)号：US20220061794A1

公开(公告)日：2022-03-03

申请号：US17419088

申请日：2019-12-27

Applicant: CARESTREAM DENTAL LLC

Inventor： Jay S. SCHILDKRAUT ,  Jean-Marc INGLESE ,  Krishnamoorthy SUBRAMANYAN ,  Vincent LOUSTAUNEAU

IPC: A61B6/00 ,  G01T1/169 ,  G01T1/36

Abstract: The present disclosure describes methods for calibrating a spectral X-ray system to perform material decomposition with a single scan of an energy discriminating detector or with a single scan at each used X-ray spectrum. The methods may include material pathlengths exceeding the size of the volume reconstructable by the system. Example embodiments include physical and matching calibration phantoms. The physical calibration phantom is used to measure the attenuation of X-rays passing therethrough with all combinations of pathlengths through the calibration's basis materials. The matching digital calibration phantom is registered with the physical calibration phantom and is used to calculate the pathlength though each material for each measured attenuation value. A created data structure includes the X-ray attenuation for each X-ray spectrum or detector energy bin for all combinations of basis material pathlengths. The data structure is usable to perform a material decomposition on the X-ray projection of an imaged object.

公开(公告)号：US20230337993A1

公开(公告)日：2023-10-26

申请号：US18215460

申请日：2023-06-28

Applicant: CARESTREAM DENTAL LLC

Inventor： Jean-Marc INGLESE ,  David ROUDERGUES ,  Arnaud CAPRI ,  Vincent LOUSTAUNEAU ,  Subramanyan KRISHNAMOORTHY

IPC: A61B6/14 ,  A61B6/00

CPC classification number: A61B6/145 ,  A61B6/4458 ,  A61B6/4476 ,  A61B6/547

Abstract: The present invention provides an intraoral X-ray system comprising:



an X-ray source located in an environment;
a robotic arm comprising an actuatable scissor arm, the robotic arm having a first end configured to be attached to a mounting and a second end attached to the X-ray source, at least one of the first and the second ends comprising a rotatable actuatable joint;
a position sensor to determine variation of position and/or orientation of the environment with respect to the X-ray source and variation of position and/or orientation of a mobile X-ray sensor with respect to the X-ray source; and
a driving unit actuating the robotic arm as a function of the determined variation of position and/or orientation to control the position and/or orientation of the X-ray source with respect to a predetermined position and/or orientation of the X-ray source.

公开(公告)号：US20210343020A1

公开(公告)日：2021-11-04

申请号：US17284493

申请日：2019-10-11

Applicant: CARESTREAM DENTAL LLC ,  TROPHY SAS

Inventor： Jay S. SCHILDKRAUT ,  Shoupu CHEN ,  Jean-Marc INGLESE ,  Vincent LOUSTAUNEAU

IPC: G06T7/11

Abstract: The present disclosure describes methods for improving semi-automatic and/or fully automatic tooth segmentation in reconstructed images of X-ray scans using multi-energy X-ray spectra and/or a multi-energy X-ray scanner at more than one energy. Such improved segmentation of teeth in a reconstructed image of an X-ray scan is a critical first step in the utilization of the image for applications in orthodontics, endodontics, and implant planning In accordance with the methods, tooth segmentation may be performed semi-automatically or automatically for images which are reconstructed from a multi-energy X-ray scan. The results of the tooth segmentation may be represented as an image map which identifies voxels which are within a tooth or as a three-dimensional (3D) grid or any other representation of a three-dimensional (3D) spatial region.