EP2434955A1 - Système d'imagerie fluoroscopique dentaire - Google Patents

Système d'imagerie fluoroscopique dentaire

Info

Publication number
EP2434955A1
EP2434955A1 EP09833773A EP09833773A EP2434955A1 EP 2434955 A1 EP2434955 A1 EP 2434955A1 EP 09833773 A EP09833773 A EP 09833773A EP 09833773 A EP09833773 A EP 09833773A EP 2434955 A1 EP2434955 A1 EP 2434955A1
Authority
EP
European Patent Office
Prior art keywords
flat panel
dental
emitter
rays
panel detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP09833773A
Other languages
German (de)
English (en)
Other versions
EP2434955A4 (fr
Inventor
Daniel Uzbelger Feldman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2434955A1 publication Critical patent/EP2434955A1/fr
Publication of EP2434955A4 publication Critical patent/EP2434955A4/fr
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4441—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm

Definitions

  • the present invention relates generally to the field of diagnostic radiology, and specifically to a dental fluoroscopic imaging system apparatus using flat panel detectors and emitters in C-arm/U-arm, O-arm configurations suitable for two dimensional (2D) and three dimensional (3D) dental fluoroscopy and the method of producing the same.
  • Dental digital radiography is a form of x-ray imaging, where digital X-ray sensors are used instead of traditional photographic film. Advantages include time efficiency through bypassing chemical processing and the ability to digitally transfer and enhance images. Also less radiation can be used to produce a 2D still image of similar contrast to conventional film-based radiography. Some types of digital dental radiography sensors are small and thin enough that they can be placed intraorally or inside the mouth. Others are larger in size and are used extraorally or outside the mouth in order to obtain a dental image. The first intraoral X-rays imaging sensor available on the market was introduced following the principles described in US Patent No.
  • CMOS complementary metal-oxide-semiconductor
  • Fluoroscopy is a dynamic x-ray, or x-ray movie showing images of video frame rates. It differs from dental digital radiography in that dental digital radiography is static x-ray, or an x-ray picture. An analogy is that of a movie compared to a snapshot. The beginning of fluoroscopy can be traced back to 8 November 1895 when Wilhelm Roentgen noticed a barium platinocyanide screen fluorescing as a result of being exposed to what he would later call x-rays. The fluoroscopic image obtained in this way was rather faint. Thomas Edison quickly discovered that calcium tungstate screens produced brighter images and is credited with designing and producing the first commercially available fluoroscope.
  • the first fluoroscope for dental use was described by William Herbert Rollins in 1896. Due to the limited light produced from the fluorescent screens, early radiologists were required to sit in a darkened room in which the procedure was to be performed, getting their eyes accustomed to the dark and thereby increasing their sensitivity to the light. The placement of the radiologist behind the screen resulted in significant radiation doses to the radiologist. Red adaptation goggles were developed by Wilhelm Trendelenburg in 1916 to address the problem of dark adaptation of the eyes, The resulting red light from the goggles' filtration correctly sensitized the physician's eyes prior to the procedure while still allowing him to receive enough light to function normally.
  • the invention of X-ray image intensif ⁇ ers in the 1950s allowed the image on the screen to be visible under normal lighting conditions, as well as providing the option of recording the images with a conventional camera.
  • Medical fluoroscopes also known as C- arms or mini C-arms are too large to fit in a dental operatory. The main reason is the size of one of their main components: > 6 inches diameter image intensif ⁇ ers.
  • recent breakthroughs in imaging and night vision technologies made possible the miniaturization of the medical fluoroscope for dental use as disclosed in the Patent No. 6,543,936 of Feldman, 2003 by using small image intensifiers.
  • Night vision image intensifiers (18-40 mm diameter) — like those used for military purposes - can convert fluoroscopy's low-radiation beam — after going through the patient's dental area - on a vivid video image. This image can be captured by a video digital camera chip and then displayed in real-time video on a monitor. Consequently, this breakthrough has allowed the fluoroscopy technology to fit in a dental operatory.
  • Another attempt to reduce the medical fluoroscope size is seen in foreign Patents No. WO/2004/110277, WO/2005/072615 and WO/2005/110234 of Kim, 2004, 2005 and 2005 respectively.
  • the X-ray CT unit irradiates the subject with X-rays from the second X-ray tube and acquires projection data from a beam of the X-rays that has passed through the subject, to reconstruct an image using the acquired projection data, and to obtain a tomographic image.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Dentistry (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

L'invention porte sur un système d'imagerie fluoroscopique dentaire qui comprend un détecteur à panneau plat composé d'un convertisseur de rayons gamma ou de rayons X, d'une plaque, d'un collecteur, d'une unité de traitement et d'un émetteur approprié pour une fluoroscopie dentaire intra-orale/extra-orale en 2D et extra-orale en 3D. Le convertisseur de rayons X contient un matériau capable de transformer le faisceau de rayons gamma ou de rayons X à dose faible, reçu en provenance d'un émetteur après être passé à travers la zone d'examen dentaire, en signaux électriques ou en une image de lumière conforme à l'image radiographiée. La plaque transmet les signaux électriques ou l'image de lumière à un collecteur qui l'amplifie et l'envoie à une unité de traitement puis à un émetteur conçu pour transférer des images numériques en séquence à un ordinateur hôte et à un logiciel hôte qui peuvent acquérir, traiter, transformer, enregistrer, geler et améliorer les images en 2D et en 3D à des fréquences de trames vidéo. On obtient les images en deux dimensions en utilisant une configuration bras en C/bras en U, tandis que l'on obtient les images en 3D en utilisant la configuration bras en O.
EP09833773.6A 2008-12-16 2009-12-22 Système d'imagerie fluoroscopique dentaire Ceased EP2434955A4 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US20174508P 2008-12-16 2008-12-16
US20174408P 2008-12-16 2008-12-16
US20174708P 2008-12-16 2008-12-16
US20174808P 2008-12-16 2008-12-16
US65396408A 2008-12-16 2008-12-16
US20174608P 2008-12-16 2008-12-16
PCT/US2009/006648 WO2010071680A1 (fr) 2008-12-16 2009-12-22 Système d'imagerie fluoroscopique dentaire

Publications (2)

Publication Number Publication Date
EP2434955A1 true EP2434955A1 (fr) 2012-04-04
EP2434955A4 EP2434955A4 (fr) 2014-01-01

Family

ID=42269100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09833773.6A Ceased EP2434955A4 (fr) 2008-12-16 2009-12-22 Système d'imagerie fluoroscopique dentaire

Country Status (2)

Country Link
EP (1) EP2434955A4 (fr)
WO (1) WO2010071680A1 (fr)

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160997A (en) * 1974-05-14 1979-07-10 Robert Schwartz Intraoral fluoroscope
US5391881A (en) * 1992-06-30 1995-02-21 Commissariat A L'energie Atomique Ionizing radiation imaging device
US5434418A (en) * 1992-10-16 1995-07-18 Schick; David Intra-oral sensor for computer aided radiography
US5510623A (en) * 1995-02-24 1996-04-23 Loral Fairchild Corp. Center readout intra-oral image sensor
WO1997048988A1 (fr) * 1996-06-18 1997-12-24 Thermotrex Corp. Dispositif d'imagerie
US5771271A (en) * 1997-04-16 1998-06-23 Infimed, Inc. Phototimer for radiology imaging
WO2002052505A2 (fr) * 2000-12-22 2002-07-04 Simage Oy Systeme, dispositif et procede d'imagerie radiologique pour imagerie par balayage
JP2003088519A (ja) * 2001-09-19 2003-03-25 Shimadzu Corp 歯科用ｘ線撮影装置
US20040042588A1 (en) * 2002-08-28 2004-03-04 Imaging3, Inc. Apparatus and method for three-dimensional imaging system
EP1705478A1 (fr) * 2005-03-23 2006-09-27 The General Electric Company Film phosphorique, ensemble d'imagerie et procédé d'inspection
EP1706035A1 (fr) * 2003-11-21 2006-10-04 Trophy Radiologie Appareil de radiologie dentaire et son procede de traitement de signaux
US20070053498A1 (en) * 2005-09-08 2007-03-08 Schick Technologies, Inc. Flexible intra-oral x-ray imaging device
US20080063139A1 (en) * 2005-05-02 2008-03-13 Tuomas Pantsar Extra-oral digital panoramic dental x-ray imaging system
EP2009902A2 (fr) * 2007-06-26 2008-12-31 FUJIFILM Corporation Dispositif de détection d'images et procédé de conduite de détecteur d'images
US20090261259A1 (en) * 2008-04-17 2009-10-22 Carestream Health, Inc. Digital radiography panel with pressure-sensitive adhesive for optical coupling between scintillator screen and detector and method of manufacture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI103177B (fi) * 1997-10-02 1999-05-14 Planmeca Oy Kallon alueen röntgenkuvauslaite
AU2887499A (en) * 1998-03-02 1999-09-20 Image Anaylsis, Inc. Automated x-ray bone densitometer
US6632089B2 (en) * 1999-11-30 2003-10-14 Orametrix, Inc. Orthodontic treatment planning with user-specified simulation of tooth movement
US6543936B2 (en) * 2001-04-24 2003-04-08 Daniel Uzbelger Feldman Apparatus for diagnosis and/or treatment in the field of dentistry using fluoroscopic and conventional radiography
WO2003010556A2 (fr) * 2001-07-25 2003-02-06 Dentsply International Inc. Imageur radiologique numerique en temps reel
US7317819B2 (en) * 2002-08-28 2008-01-08 Imaging3, Inc. Apparatus and method for three-dimensional imaging

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4160997A (en) * 1974-05-14 1979-07-10 Robert Schwartz Intraoral fluoroscope
US5391881A (en) * 1992-06-30 1995-02-21 Commissariat A L'energie Atomique Ionizing radiation imaging device
US5434418A (en) * 1992-10-16 1995-07-18 Schick; David Intra-oral sensor for computer aided radiography
US5510623A (en) * 1995-02-24 1996-04-23 Loral Fairchild Corp. Center readout intra-oral image sensor
WO1997048988A1 (fr) * 1996-06-18 1997-12-24 Thermotrex Corp. Dispositif d'imagerie
US5771271A (en) * 1997-04-16 1998-06-23 Infimed, Inc. Phototimer for radiology imaging
WO2002052505A2 (fr) * 2000-12-22 2002-07-04 Simage Oy Systeme, dispositif et procede d'imagerie radiologique pour imagerie par balayage
JP2003088519A (ja) * 2001-09-19 2003-03-25 Shimadzu Corp 歯科用ｘ線撮影装置
US20040042588A1 (en) * 2002-08-28 2004-03-04 Imaging3, Inc. Apparatus and method for three-dimensional imaging system
EP1706035A1 (fr) * 2003-11-21 2006-10-04 Trophy Radiologie Appareil de radiologie dentaire et son procede de traitement de signaux
EP1705478A1 (fr) * 2005-03-23 2006-09-27 The General Electric Company Film phosphorique, ensemble d'imagerie et procédé d'inspection
US20080063139A1 (en) * 2005-05-02 2008-03-13 Tuomas Pantsar Extra-oral digital panoramic dental x-ray imaging system
US20070053498A1 (en) * 2005-09-08 2007-03-08 Schick Technologies, Inc. Flexible intra-oral x-ray imaging device
EP2009902A2 (fr) * 2007-06-26 2008-12-31 FUJIFILM Corporation Dispositif de détection d'images et procédé de conduite de détecteur d'images
US20090261259A1 (en) * 2008-04-17 2009-10-22 Carestream Health, Inc. Digital radiography panel with pressure-sensitive adhesive for optical coupling between scintillator screen and detector and method of manufacture

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ROBERT A. STREET ET AL: "<title>Printed active-matrix TFT arrays for x-ray imaging (Invited Paper)</title>", PROCEEDINGS OF SPIE, vol. 5745, 20 April 2005 (2005-04-20), pages 7 - 17, XP055134918, ISSN: 0277-786X, DOI: 10.1117/12.593521 *
See also references of WO2010071680A1 *

Also Published As

Publication number Publication date
WO2010071680A1 (fr) 2010-06-24
WO2010071680A4 (fr) 2011-08-04
EP2434955A4 (fr) 2014-01-01

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