Dental Panoramic Patents (Class 378/38)
  • Patent number: 10307121
    Abstract: An X-ray arrangement for a medical work station includes a frame having a first frame section supporting an X-ray transmitter and a second frame section opposite the first frame section and supporting an X-ray receiver. The medical work station further includes an adjustment device configured to change a relative pose of at least one of the X-ray transmitter or the X-ray receiver relative to the frame by adjusting at least one of the pose of the X-ray transmitter at the first frame section or the pose of the X-ray receiver (at the second frame section independently of one other. In one aspect, the frame may be shaped as a C-arm.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: June 4, 2019
    Assignee: KUKA Deutschland GmbH
    Inventor: Sven Brudniok
  • Patent number: 10277816
    Abstract: One innovation includes an imaging device having an image sensor, a lens having a movable optical element, and an actuator operative to move the one optical element to a plurality of lens positions. The imaging device further includes an electronic display, a power source electrically coupled to the camera system and to the display, the power source (e.g., voltage regulator) configured to provide power to the display and the camera system, a memory circuit configured to store information representing an actuator control value that corresponds to a low-power focus position, and an electronic hardware processor coupled to the memory circuit, the actuator and the electronic display. The processor may retrieve the actuator control value from the memory circuit and controls the actuator to move the optical element to the lens position that corresponds to the low-power focus position when the camera system is in a deactivated state.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: April 30, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Ravi Shankar Kadambala, Ajay Kumar Dhiman, Gaurav Gagrani, Ravi Kishore Tanuku, Jeyaprakash Soundrapandian
  • Patent number: 10258306
    Abstract: A method, a device, a system and a computer program are for controlling limited-area computer tomography imaging. The method includes determining location data of a first imaging object when the first imaging object is positioned in an imaging area, determining reference location data related to the first imaging object and adjusting the imaging area based on the location data of the first imaging object and said reference location data for imaging a second imaging object. The first and the second imaging object can be located at a distance determined by the reference location data from each other or symmetrically in relation to the reference location data.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: April 16, 2019
    Assignee: PaloDEx Group Oy
    Inventor: Petri Jouhikainen
  • Patent number: 10223813
    Abstract: Methods and systems for computed tomography. A subject is imaged with a divergent beam source using a plurality of source positions and a detector array comprising a plurality of detector bins to obtain a representation of the subject including a plurality of image voxels. Contribution of a voxel to a detector bin in a computed forward projection or a detector bin to a voxel in a backprojection is determined by the intensity value assigned to the voxel, or to the detector bin, respectively, multiplied by the product of an area or volume of overlap and an additional weighting factor, and the area or volume of overlap is determined by overlap of the voxel with the area or volume of the image illuminated by a ray-wedge defined by detector bin edge rays.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: March 5, 2019
    Assignee: InstaRecon
    Inventors: Jeffrey Brokish, Yoram Bresler
  • Patent number: 10195002
    Abstract: The disclosure is related to a device and method for obtaining a complete and accurate three-dimensional surface image of a target object by registering a three-dimensional optical image with a volume data obtained by X-ray imaging. The device for generating a three-dimensional surface image for dentistry includes a three-dimensional imaging module including an optical camera which obtains a three-dimensional optical image of the target object and an X-ray imaging unit which obtains X-ray images of the target object in multiple directions, a reconstruction unit generating a volume data by reconstructing the X-ray images, and an image processing unit registering the three-dimensional optical image with the volume data and generating a three-dimensional surface image of the target object by substituting a different portion of the three-dimensional optical image with a boundary of the volume data.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 5, 2019
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Tae Woo Kim
  • Patent number: 10181206
    Abstract: A method and an apparatus for providing panoramic image data by reconstructing frame images captured by a panoramic imaging apparatus, are disclosed. In reconstruction of images with multiple image layers, sizes of images reconstructed with an image layer or images to be used for a reconstruction are scaled. An image is selected by analyzing sharpness. A panoramic image is provided by combining selected image. According to the present invention, parts having unclear focal planes may be completely removed in a panoramic image and it is possible to provide an image including only with focused regions.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: January 15, 2019
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 10166076
    Abstract: Disclosed is a registration object for computed radiographic tomography. The object has a body portion defining a void for including at least part of a target object. The registration object comprises one or more relatively radiopaque or relatively radiolucent features. Said feature or features provide, in a suitable proportion of radiographic projections of the registration object with respect to angle about a predetermined axis, a pair of identifiable registration points which are spaced apart in a direction parallel to the predetermined axis by a first distance, and whose positions in that direction are each either a constant or a function only of the angle of the projection about the predetermined axis.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: January 1, 2019
    Assignee: NIKON METROLOGY NV
    Inventors: Andrew Timothy Ramsey, Andrew Robert Ray
  • Patent number: 10123762
    Abstract: An x-ray imaging system and a method for retrofitting existing x-ray generators to allow those generators to be controlled by a digital x-ray imaging system are disclosed. The x-ray imaging system includes an imaging array and an image controller. The imaging array is configured to be positioned within a patient's mouth, the imaging array acquiring an image of the patient's teeth when the patient's head is illuminated with x-rays. The imaging array includes an x-ray dosimeter that provides an x-ray exposure signal indicative of an x-ray exposure received by the imaging array. The image controller is coupled to the imaging array and receives the x-ray exposure signal, the image controller includes a first wireless link that controls an x-ray generator by initiating a pre-programmed x-ray exposure. The wireless controllable switch can be used to replace an existing manually controlled switch in an existing x-ray generator.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: November 13, 2018
    Assignee: BAE Systems Imaging Solutions Inc.
    Inventors: Xinqiao Liu, Boyd Fowler
  • Patent number: 10085700
    Abstract: Disclosed are an X-ray device to inform a patient of X-ray irradiation through a sound and a method for controlling the same. The X-ray device includes an input portion to output a first-step press signal and a second-step press signal according to an operator input, a high-voltage generating portion to perform pre-heating, and to output a ready completion signal when the high-voltage generating portion completes pre-heating, a control portion to output a sound output signal when it receives both the second-step press signal output from the input portion and the ready completion signal output from the high-voltage generating portion, and a sound output portion to receive the sound output signal output from the control portion and to output a predetermined sound.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: October 2, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Sun Kim, Jong Hyun Shin, Woo Sup Han
  • Patent number: 10004468
    Abstract: An X-ray imaging device and an X-ray imaging method for obtaining 3D X-ray images of an entire field of view (FOV). The device includes an X-ray source for radiating X-rays to a part of an FOV and an X-ray sensor for detecting the X-rays, which have passed through the part of the FOV. The X-ray sensor has a width narrower than the radius of a smallest circle including a cross section perpendicular to the longitudinal direction of the FOV. A rotating arm supports the X-ray source and the X-ray sensor to face each other with the FOV therebetween. The rotating arm rotates and moves about an axis of rotation between the X-ray source and the X-ray sensor so that the X-rays are radiated to the entire area of the FOV in various directions of the FOV.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: June 26, 2018
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventors: Sung Il Choi, Byung Jun Ahn, Sang Baek Noh, Chi Twak Oh
  • Patent number: 9852525
    Abstract: A method and an apparatus for providing panoramic image data by reconstructing frame images captured by a panoramic imaging apparatus, are disclosed. In reconstruction of images with multiple image layers, sizes of images reconstructed with an image layer or images to be used for a reconstruction are scaled. An image is selected by analyzing sharpness. A panoramic image is provided by combining selected image. According to the present invention, parts having unclear focal planes may be completely removed in a panoramic image and it is possible to provide an image including only with focused regions.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: December 26, 2017
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 9763637
    Abstract: The present invention provides an apparatus and method for reconstructing a panoramic X-ray image. The apparatus includes a storage unit for storing image data of multiple image layers; an image processing unit for determining a reference image layer among the multiple image layers, finding blocks that correspond to at least one block designated in the reference image layer from other image layers, selecting a clearest block by comparing image data of the corresponding blocks, and reconstructing the reference image layer by replacing the designated block in the reference image layer with the clearest block selected in any of the other image layers, if the selected block is not the same as the designated block in the reference image layer; and a display unit for displaying a panoramic image of the reconstructed reference image layer.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: September 19, 2017
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 9743893
    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.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 29, 2017
    Assignee: Carestream Health, Inc.
    Inventors: Jean-Marc Inglese, Sylvie Bothorel, Vincent Loustauneau, Donna Rankin-Parobek
  • Patent number: 9668705
    Abstract: An X-ray tomographic imaging apparatus includes an X-ray and a direct conversion type of detector. The X-ray tube and the detector are supported by the support means so as to be rotatable along curved orbits mutually independently. Under instructions from a computer, scans and image reconstruction are performed. The X-ray tube and the detector are moved along the orbits mutually independently so that X-ray beams are always transmitted through a desired tomographic plane of an object at desired angles. Acquired frame data are used to produce a panoramic image of the plane, while the frame data and the panoramic image are used to produce a tomographic image in which structural components of the object are optically focused and distortions caused due to differences in X-ray paths are suppressed. The apparatus can be used as devices for dental, medical diagnosis and nondestructive inspection, and can have a CT imaging function.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: June 6, 2017
    Assignee: TAKARA TELESYSTEMS CORP.
    Inventors: Tsutomu Yamakawa, Masahiro Tsujita, Akitoshi Katsumata, Koichi Ogawa, Hisatoshi Aoki
  • Patent number: 9662085
    Abstract: A method, a device, a system and a computer program are for controlling limited-area computer tomography imaging. The method includes determining location data of a first imaging object when the first imaging object is positioned in an imaging area, determining reference location data related to the first imaging object and adjusting the imaging area based on the location data of the first imaging object and said reference location data for imaging a second imaging object. The first and the second imaging object can be located at a distance determined by the reference location data from each other or symmetrically in relation to the reference location data.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: May 30, 2017
    Assignee: PaloDExGroup Oy
    Inventor: Petri Jouhikainen
  • Patent number: 9652873
    Abstract: The invention relates to a method for creating a virtual dental image from a 3D volume (1) comprising volumetric image data. Firstly, a sub-volume (8, 12, 15, 18) of the 3D volume (1) is defined and then a virtual projection image (30, 41) is generated for said sub-volume (8, 12, 15, 18) from a specific X-ray imaging direction (11) by computation of the volumetric image data in said X-ray imaging direction (11).
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: May 16, 2017
    Assignee: Sirona Dental Systems GmbH
    Inventor: Johannes Ulrici
  • Patent number: 9579046
    Abstract: A method and apparatus for determining a three-dimensional orientation of a human head. The method includes first interposing a left and a right anthropological baselines on a patient's face, each anthropological baseline connecting an orbitale point and an auricular point on a corresponding side of the patient's face. A headgear unit having a pair of temple elements and a from housing rotatably attached to the temple elements, where the front housing includes at least two cameras and a 3D compass all movable within the front housing, is then positioned on a patient's head. Each of the two cameras is adjusted such that its view field picks up one of the two anthropological baselines on the patient's face. These view fields of the two cameras are then used to construct a Human Skull Base Plane as a plane formed by the left and right anthropological baselines when these anthropological baselines are parallel and aligned.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: February 28, 2017
    Assignee: Albert Davydov
    Inventor: Albert Davydov
  • Patent number: 9514516
    Abstract: A method and an apparatus for providing panoramic image data by reconstructing frame images captured by a panoramic imaging apparatus, are disclosed. In reconstruction of images with multiple image layers, sizes of images reconstructed with an image layer or images to be used for a reconstruction are scaled. An image is selected by analyzing sharpness. A panoramic image is provided by combining selected image. According to the present invention, parts having unclear focal planes may be completely removed in a panoramic image and it is possible to provide an image including only with focused regions.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: December 6, 2016
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 9504434
    Abstract: A craniostat for an extraoral dental radiographic apparatus includes an upper portion connected to a lower portion by rods. The upper portion includes a crossbeam and rests for a patient's temples, the rests being formed by two arches articulated with the crossbeam. The arches lean on the patient's temples, and are blocked by a control system, which, in one embodiment, is configured as oscillating levers. The blocking action is caused by shape friction generated at the time of activation via the control levers. A method of use of a craniostat is also described.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: November 29, 2016
    Assignee: CEFLA SOCIETÁ COOPERATIVA
    Inventors: Davide Bianconi, Andrea Geminiani, Gianluca Manuzzato, Giovanna Cornacchia, Giorgio Ramorino, Davide Galassi
  • Patent number: 9486174
    Abstract: The present invention provides an apparatus and method for reconstructing a panoramic X-ray image. The apparatus includes a storage unit for storing image data of multiple image layers; an image processing unit for determining a reference image layer among the multiple image layers, finding blocks that correspond to at least one block designated in the reference image layer from other image layers, selecting a clearest block by comparing image data of the corresponding blocks, and reconstructing the reference image layer by replacing the designated block in the reference image layer with the clearest block selected in any of the other image layers, if the selected block is not the same as the designated block in the reference image layer; and a display unit for displaying a panoramic image of the reconstructed reference image layer.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: November 8, 2016
    Assignees: VATECH Co., Ltd., VATECH EWOO Holdings Co., Ltd.
    Inventor: Sung Il Choi
  • Patent number: 9408580
    Abstract: The invention generally relates to generating digital dental panoramic images from multiple frame images acquired during a dental panoramic imaging scan about a patient's head. This generating includes using information of location and orientation of the x-ray beam and the x-ray detector at times when taking the frames in the procedure of summing information of the frames.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: August 9, 2016
    Assignee: Planmeca Oy
    Inventor: Lasse Toimela
  • Patent number: 9265469
    Abstract: An extraoral dental radiographic apparatus which performs panoramic radiographies, cone beam volumetric radiographies of the facial skeleton and cranial teleradiographies. An alternating mechanism brings x-ray sensors toward the x-ray radiation source, such that the sensor axes intersect at an angle.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: February 23, 2016
    Assignee: CEFLA SOCIETA COOPERATIVA
    Inventors: Antonio Baldini, Davide Bianconi, Antonio Becca
  • Patent number: 9185314
    Abstract: Output voltage of a charge-to-voltage converter used in an image sensing system is compared with one or more thresholds to determine if the output voltage exceeds predetermined threshold levels. If the output voltage exceeds one or more of the threshold levels, the input terminal of the charge-to-voltage converter is connected to a reference voltage to prevent the charge-to-voltage converter from saturating. Problems that could be caused due to overload of the voltage-to-charge converter are obviated. In an embodiment, the charge-to-voltage converter is implemented by an operational amplifier (OPAMP). A pair of comparators compares the output of the OPAMP with corresponding threshold voltages. The result of the comparison is used to generate a signal for connecting the input of the OPAMP to the reference voltage, thereby preventing saturation of the OPAMP.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: November 10, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Rajiv Shrikant Mantri, Nagesh Surendranath
  • Patent number: 9173623
    Abstract: A method and a device for low x-ray radiation dosage while taking x-ray images of a patient's teeth is disclosed. The method includes use of an x-ray source and receiver positioned at least partially inside the patient's mouth. The device includes an x-ray source and receiver attached together by a bite holder and configured to both be disposed at least partially inside the patient's mouth across a tooth while taking x-ray images of a patient's tooth.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: November 3, 2015
    Assignees: Moxtek, Inc.
    Inventors: Samuel Soonho Lee, Victor Armando Tirado, David S. Crawford
  • Patent number: 9173616
    Abstract: Provided is a method and apparatus for providing a three-dimensional (3D) image. A plurality of first projection images may be created by detecting X-rays which are emitted toward an object at different angles. A plurality of second projection images with respect to a partial volume of the object may be created by applying a forward projection and interpolation to at least one of the plurality of first projection images. A left image and a right image may be selected from among the plurality of second projection images, and the selected left image and right image may be displayed for a user as a 3D projection image.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: November 3, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kang Eui Lee, Jong Ha Lee, Kwang Eun Jang, Young Hun Sung
  • Patent number: 9148566
    Abstract: Conventional X-ray photographing has several problems for eliminating the influence from the cervical vertebrae such as rework of original images, causing possible loss of useful information, as well as long processing time and the need for a plurality of panoramic images. The X-ray photographic device according to the present invention can eliminate the influence from the cervical vertebrae projected at around the anterior teeth of the panoramic image of a tooth row, without missing the original image information and without influence of different shapes of cervical vertebrae and X-ray permeability by each subject. In addition, as the present invention achieves these through arithmetic processing, there is no need to intensify X-ray output in the section corresponding to the anterior teeth, nor decelerate the rotating speed of arms during photographing, and it is possible to suppress the X-ray dose received by the subject.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: September 29, 2015
    Assignee: The Yoshida Dental Mfg., Co., Ltd.
    Inventor: Takanori Wagatsuma
  • Patent number: 9117301
    Abstract: A method of obtaining a panoramic image and an apparatus for the same are disclosed. In particular, a method of obtaining a panorama image and an apparatus for the same capable of obtaining a more clear panoramic image with reproducibility by extracting best-focused-images in case of forming images of multiple image-layer-trace images are disclosed. In accordance with the method and the device of this invention for obtaining the panoramic image, it is possible to complete the optimal image-layer-trace to be reconstructed and to obtain a clear panoramic image which vividly shows an arch of a patient by reconstructing a panoramic image for an optimal image-layer-trace most closely related to a focus-trace.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: August 25, 2015
    Assignee: VATECH CO., LTD.
    Inventors: Hyosung Cho, Sungil Choi, Yangseo Koo
  • Patent number: 9036776
    Abstract: An X-ray photography apparatus including: a turning arm that supports an X-ray generator and an X-ray detector while the X-ray generator and the X-ray detector are opposed to each other so that a head of a patient can be interposed therebetween; and a moving mechanism that turns the turning arm about a turning axis with respect to the head and moves the turning arm in a direction perpendicular to the turning axis with respect to the head. The X-ray photography apparatus further includes: an image processor that generates an X-ray image based on an electric signal output from the X-ray detector; and a photographic region designation receiving part that designates part of a row of teeth along a dental arch as a pseudo intraoral radiography region. The image processor generates plural tomographic images by applying convolution and filtered back projection to X-ray image data obtained by pseudo intraoral radiography.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: May 19, 2015
    Assignee: J. MORITA MANUFACTURING CORPORATION
    Inventors: Tomoyuki Sadakane, Hideki Yoshikawa
  • Patent number: 9036775
    Abstract: An X-ray photography apparatus including: a turning arm that supports an X-ray generator and an X-ray detector which are opposed to each other so that the head of a patient can be interposed therebetween, and a moving mechanism that includes a turning part and a moving part. The turning part turns the turning arm about a turning axis with respect to the head. The moving part moves the turning arm relative to the head in a direction perpendicular to the turning axis. The X-ray photography apparatus also includes: an image processor that generates an X-ray image, a photographic region designation part that designates part of a row of teeth along a dental arch as a pseudo intraoral radiography region, and an X-ray forming mechanism that changes the irradiation direction in which the head is irradiated with an X-ray relative to the axial direction of the body axis of the patient.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: May 19, 2015
    Assignee: J. MORITA MANUFACTURING CORPORATION
    Inventors: Hideki Yoshikawa, Makoto Honjo
  • Patent number: 8979364
    Abstract: A combined imaging apparatus for x-ray imaging of a subject in multiple modes has a supporting structure having an extended rotary arm, wherein the rotary arm has a computed tomography detector and a panoramic imaging detector, both mounted adjacently against a movable platen. A detector positioning apparatus is actuable to translate the position of the movable platen to either of at least first and second positions with respect to an x-ray source. The first position disposes the computed tomography detector in the direct path of an x-ray source and the second position disposes the panoramic imaging detector in the direct path of the x-ray source.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: March 17, 2015
    Assignee: Trophy
    Inventors: Sylvie Bothorel, Philippe Maillet, Jean-Marc Inglese
  • Patent number: 8953740
    Abstract: The invention relates to an X-ray device comprising an x-ray sensitive camera for creating tomograms, especially panoramic tomograms. Means for creating 3D shots of a partial volume of the mandibular arch are also provided, said 3D shots being created especially by a second image receiver for creating a 2D shot and means for taking a plurality of 2D shots from different directions and creating a 3D shot therefrom, preferably according to conebeam technology with the associated reconstruction algorithms. The x-ray sensitive camera comprises a first x-ray sensitive image receiver for creating a tomogram, and a second x-ray sensitive image receiver for creating plane shots.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 10, 2015
    Assignee: Sirona Dental Systems GmbH
    Inventors: Norbert Erhardt, Werner Gunther
  • Publication number: 20150036797
    Abstract: An intraoral radiation device comprises a biocompatible intraoral receptacle with an X-ray source therein.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 5, 2015
    Inventor: EHUD NACHALIEL
  • Patent number: 8934602
    Abstract: An apparatus for dental and facial imaging including a rotatable gantry having an axis of rotation generally in the direction of local gravitational vertical; a source of penetrating radiation mounted on the gantry; an elongated detector for detecting radiation and producing image data, the detector mounted opposite the source on the gantry, and having a length, a long axis, and a short axis The gantry, source, and detector configured to receive the head of a patient between the source and the detector, with the axis of rotation of the gantry passing through the patient's head. The detector is mounted rotatably to the gantry and movable between a first position where the long axis of the detector is generally perpendicular to the axis of rotation of the gantry and a second position where the long axis of the detector is generally parallel to the axis of rotation of the gantry.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: January 13, 2015
    Assignee: Dental Imaging Technologies Corporation
    Inventors: Henry Tancredi, Edward Marandola, John Tancredi
  • Publication number: 20150010126
    Abstract: An X-ray apparatus for digital radiography has a rotating arm where the X-ray source and X-ray sensor cassette are oppositely mounted. The source has a primary collimator to adjust the X-ray beam size according to the selected imaging modality. The sensor cassette encloses a first X-ray detector for a first imaging mode, while a second X-ray detector usable for a second imaging mode is detachably mounted on the external side of the sensor cassette. The sensor cassette accommodates a second collimator to create a fan shaped X-ray beam for a third imaging modality. The sensor cassette has a linear motorized movement which is used for: aligning the X-ray beam with respect to the first and second detector; positioning the first detector in the first imaging mode to achieve an extended view; and scanning movement during the third imaging modality synchronized with the horizontal movement of a third X-ray detector.
    Type: Application
    Filed: January 22, 2013
    Publication date: January 8, 2015
    Applicant: DE GOTZEN S.R.L.
    Inventors: Giuseppe Rotondo, Fabio Lissandrello, Claudio Giani
  • Patent number: 8855262
    Abstract: An X-ray photographing device comprising a turning means for turning an x-ray source and an X-ray sensor around a subject is provided with an arcuate movement means for arcuately moving the X-ray sensor around an arcuate movement center axis, and a control unit. The control unit continuously performs a first photographing step for detecting an X-ray flux while turning the X-ray sensor in a first arcuate movement range around the arcuate movement center axis by the arcuate movement means, a shifting/turning step for shifting/turning an arcuate movement arm around the subject by the turning means, and a shifting/photographing step for detecting the X-ray flux while turning the X-ray sensor in a second arcuate movement range around the arcuate movement center axis by the arcuate movement means in the state shifted from the first arcuate movement range by a very small angle in the shifting/turning step.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: October 7, 2014
    Assignee: The Yoshida Dental Mfg. Co. Ltd.
    Inventors: Terumi Takemoto, Michizo Yamanaka
  • Patent number: 8774497
    Abstract: A method for locating artifacts, such as particles or voids, in a material includes the steps of defining a path through a volume of the material, sensing the presence and type of any artifacts along the path and determining for each sensed artifact, the respective distance along the path. Analysis of the quantity of sensed artifacts and their respective position along the path enables the determination of measures for the artifact density, artifact size and artifact distribution in the material.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: July 8, 2014
    Assignee: Rolls-Royce PLC
    Inventor: Alison J McMillan
  • Patent number: 8757875
    Abstract: A sensor positioning and stabilizing device is provided. The sensor positioning and stabilizing device holds and stabilizes dental x-ray film or digital sensors during implant surgery with requiring a patient to bite down or manually hold it in position in order to take an x-ray.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: June 24, 2014
    Inventor: Peter Mayer
  • Patent number: 8750450
    Abstract: In a method for the creation of a dental 3D radiograph of at least a subregion, forming a volume, of an object using an X-ray apparatus, the volume is recorded as a 3D radiograph from a plurality of projected images during a revolution around the object. At least a part of the object is displayed in a graphical representation before the radiograph of the volume is created, the position of the graphical representation relative to the current position of the apparatus and the patient being known. The volume to be radiographed, governed by the positioning of the object relatively to the apparatus and by the choice of the settings data and/or control data, is placed in the graphical representation in an at least approximately correct position, and when there is a change in position and/or size of the volume to be radiographed within the graphical representation, the settings data and/or control data for the creation of the 3D radiograph are defined.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: June 10, 2014
    Assignee: Sirona Dental Systems GmbH
    Inventors: Johannes Ulrici, Roland Bonk
  • Patent number: 8744162
    Abstract: A method and system for evaluating images, such as x-ray image, to provide feedback that can be used for subsequent image acquisition. The feedback may be used to adjust the positioning of a patient with respect to an image capture device, or a setting of the image capture device. The image capture device may be part of a dental x-ray imaging system that generates an x-ray image of the patent and provides the image to a collector service. The image is evaluated by the collector service for positioning errors and other operator correctable issues that may have had an impact on the image quality. A report that includes feedback regarding the operator correctable issues, as well as suggested corrective action, is generated and provided to the imaging system operator.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: June 3, 2014
    Assignee: Midmark Corporation
    Inventors: Mark Greenwood, Edwin McDonough, Bradley McDougall, Don Walker
  • Patent number: 8705691
    Abstract: A dental X-ray apparatus of the conical-beam digitized-tomography type includes: an X-ray generator emitting an X-ray beam towards an object and provided with a collimation element for collimating the emitted beam; an X-ray sensor having an active surface arranged opposite the generator; wherein the generator and the sensor can rotate simultaneously about a rotation axis, the sensor being oriented so that a longitudinal axis extending from the generator to the sensor through the rotation axis is perpendicular to the active surface of the sensor, the center of the sensor being transversally offset relative to the projection of the axis on the sensor's active surface, the arrangement of the collimation element and the sensor thus offset defining that the collimated beam illuminates the sensor's active surface while leaving a peripheral area of the surface that is faintly illuminated by the collimated beam relative to the rest of the active surface.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: April 22, 2014
    Assignee: Trophy
    Inventors: Vincent Loustauneau, Sylvie Bothorel, Colombe Isabelle Maury
  • Patent number: 8693624
    Abstract: An extra-oral digital panoramic dental x-ray imaging system for multi-layer panoramic and transverse X-ray imaging providing with an X-ray source and a digital imaging device providing real time frame mode output and autofocusing. The X-ray source and imaging device are mounted in a mechanical manipulator defining the trajectory of a predetermined image layer. The imaging device communicates with a processor that generates a frames memory from which an image reconstruction mechanism composes the final images.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: April 8, 2014
    Assignee: Oy AJAT Ltd.
    Inventors: Konstantinos Spartiotis, Tuomas Pantsar
  • Patent number: 8641276
    Abstract: A sensor that is at least partially covered by a sheath, and a positioning arm that is electrically coupled to the sensor, and arranged outside of the sheath, such that a hygienic barrier is formed around the sensor. The sensor is used for filmless dental radiography and the positioning arm enables positioning of the sensor in a patient's mouth. The positioning arm includes a contact that pierces the sheath and establishes an electrical connection with the sensor when the positioning arm is coupled to the sensor.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: February 4, 2014
    Assignee: Sirona Dental, Inc.
    Inventors: Mark Abramovich, Valeriy Armencha, Stan Mandelkern
  • Publication number: 20140029719
    Abstract: Provided is an intraoral X-ray imaging apparatus for detecting X-ray outside an oral cavity, including: a frame; an X-ray irradiator which is installed to be supported by the frame and of which the one end portion is inserted into the oral cavity and which irradiates X-ray through an X-ray irradiation hole formed on the one end portion inserted into the oral cavity; and an X-ray detector which is arranged to be separated from the X-ray irradiator in the frame so as to detect the X-ray irradiated from the X-ray irradiator outside the oral cavity and which is movably installed so as to adjust a distance to the X-ray irradiator. In the X-ray imaging apparatus and an imaging method using the X-ray imaging apparatus, since the X-ray irradiator is located inside the oral cavity, it is possible to obtain an image having a high quality with a low X-ray dose and to avoid confusion in image diagnosis by removing a ghost image.
    Type: Application
    Filed: February 9, 2012
    Publication date: January 30, 2014
    Applicant: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION
    Inventor: Rena Lee
  • Patent number: 8634515
    Abstract: A method of obtaining a panoramic image and an apparatus for the same are disclosed. In particular, a method of obtaining a panorama image and an apparatus for the same capable of obtaining a more clear panoramic image with reproducibility by extracting best-focused-images in case of forming images of multiple image-layer-trace images are disclosed. In accordance with the method and the device of this invention for obtaining the panoramic image, it is possible to complete the optimal image-layer-trace to be reconstructed and to obtain a clear panoramic image which vividly shows an arch of a patient by reconstructing a panoramic image for an optimal image-layer-trace most closely related to a focus-trace.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: January 21, 2014
    Assignee: Vatech Co., Ltd.
    Inventors: Hyosung Cho, Sungil Choi, Yangseo Koo
  • Patent number: 8588364
    Abstract: A medical X-ray apparatus comprising a supporting part for supporting an X-ray generator and a two-dimensional X-ray detector while interposing an object to be examined therebetween, a radiation area restricting part for restricting a radiation area of X-ray generated from the X-ray generator, and a scan driving part for scanning the object with the X-ray restricted by the radiation area restricting part as X-ray beam and for executing radiography. A direction intersecting with X-ray scan direction is defined as a height direction, the apparatus further comprises a radiation area setting part for setting at least one of both ends of width of the X-ray beam in the height direction at a desired position in accordance with the position of an interested area of the object; and the X-ray beam is irradiated only to the radiation area as set by the radiation area setting part with its beam width in height direction restricted by the radiation area restricting part.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: November 19, 2013
    Assignee: J. Morita Manufacturing Corporation
    Inventors: Masakazu Suzuki, Hideki Yoshikawa, Takahiro Yoshimura, Makoto Honjo
  • Patent number: 8548120
    Abstract: A method and a system for generating an image by obtaining x-ray image data, segmenting the x-ray image data into a first portion above a vertical threshold and a second portion below the vertical threshold. Further, the method and the system include generating an arch for the second plurality of slices, and generating an image based on the arch.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 1, 2013
    Assignee: Dental Imaging Technologies Corporation
    Inventors: Hongjian Shi, Arun Singh, Ed Marandola, Uwe Mundry, Somchai Kreang-arekul
  • Patent number: 8532255
    Abstract: The invention relates to a method for generating and presenting a panorama image of a jaw region, where first a set of volume data representing the jaw region of a patient is generated by means of a tomographic method.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: September 10, 2013
    Assignee: Sicat GmbH & Co. KG
    Inventors: Manfred Breuer, Nils Hanβen, Joachim Hey
  • Patent number: 8532254
    Abstract: An extra-oral digital panoramic dental x-ray imaging system for multi-layer panoramic and transverse X-ray imaging providing with an X-ray source and a digital imaging device providing real time frame mode output and autofocusing. The X-ray source and imaging device are mounted in a mechanical manipulator defining the trajectory of a predetermined image layer. The imaging device communicates with a processor that generates a frames memory from which an image reconstruction mechanism composes the final images.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: September 10, 2013
    Assignee: Oy AJAT Ltd
    Inventors: Tuomas Pantsar, Konstantinos Spartiotis
  • Patent number: 8520922
    Abstract: A method for forming an enhanced image (60) of a tooth (20) making use of the tooth (20) fluorescence and/or reflectance effects, employs a morphological image processing technique, and reduces susceptibility to overall intensity variations in the image (60).
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: August 27, 2013
    Assignee: Carestream Health, Inc.
    Inventors: Wei Wang, Liangliang Pan, Lixing Shi, Victor C. Wong
  • Patent number: 8504207
    Abstract: A method controls motions of a mechanical arm using an electronic device. The mechanical arm includes an x-axis, a y-axis, and a z-axis. The method sets a step angle of a motor installed in line with the z-axis, and predefines angles of rotation as reference points regarding orientation of the rotating arm when rotated. The method further calculates a rotation angle of the rotating arm in a polar coordinate system, calculates coordinate motions of the x-axis and the y-axis if a free end of the rotating arm orientates to one of the reference points, and calculates an offset correction value of a pole origin position of the polar coordinate system. After correcting each of the coordinate motions and the pole origin position, the method controls the mechanical arm to move, and drives the rotating arm to reach another reference point according to a multiple of the step angle.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: August 6, 2013
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Shen-Chun Li, Hsien-Chuan Liang, Shou-Kuo Hsu