WO2009081327A3 - A rotor and x-ray ct scanners - Google Patents

A rotor and x-ray ct scanners Download PDF

Info

Publication number
WO2009081327A3
WO2009081327A3 PCT/IB2008/055317 IB2008055317W WO2009081327A3 WO 2009081327 A3 WO2009081327 A3 WO 2009081327A3 IB 2008055317 W IB2008055317 W IB 2008055317W WO 2009081327 A3 WO2009081327 A3 WO 2009081327A3
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
subject
detection means
housing
radiation source
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
PCT/IB2008/055317
Other languages
French (fr)
Other versions
WO2009081327A2 (en
Inventor
Randall Peter Luhta
Ronald Sharpless
Lester Miller
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to US12/808,695 priority Critical patent/US9314220B2/en
Priority to CN2008801211178A priority patent/CN101903764B/en
Priority to EP08865343A priority patent/EP2225550A2/en
Publication of WO2009081327A2 publication Critical patent/WO2009081327A2/en
Publication of WO2009081327A3 publication Critical patent/WO2009081327A3/en
Anticipated expiration legal-status Critical
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
    • A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
    • 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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A61B6/035—Mechanical aspects of CT
    • 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
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4291—Arrangements for detecting radiation specially adapted for radiation diagnosis the detector being combined with a grid or grating

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The invention relates to a rotor comprising a radiation source having a focal spot for radiating beam towards a subject, detection means for generating signals responsive to energy attenuation of said beam and a circular body having a cavity for housing the radiation source, and a circle arc-shaped surface on which the detection means are mounted. The circle arc-shaped surface is placed opposite to the cavity with respect to the subject, said cavity comprising an inside surface mounted with a shield for shielding the radiation not towards the subject. In this way, the conventional housing for radiation source and shielding are removed, resulting in reduction of focal spot motion caused by motion of the conventional housing. Furthermore, this invention proposes to mount the detection means directly on the circular body without an intermediate structural housing that reduces the detector modules motion relative to the focal spot.
PCT/IB2008/055317 2007-12-19 2008-12-16 A rotor and x-ray ct scanners Ceased WO2009081327A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/808,695 US9314220B2 (en) 2007-12-19 2008-12-16 Rotor and X-ray CT scanners
CN2008801211178A CN101903764B (en) 2007-12-19 2008-12-16 A rotor and X-ray CT scanners
EP08865343A EP2225550A2 (en) 2007-12-19 2008-12-16 A rotor and x-ray ct scanners

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1490307P 2007-12-19 2007-12-19
US61/014,903 2007-12-19

Publications (2)

Publication Number Publication Date
WO2009081327A2 WO2009081327A2 (en) 2009-07-02
WO2009081327A3 true WO2009081327A3 (en) 2009-12-17

Family

ID=40383934

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/055317 Ceased WO2009081327A2 (en) 2007-12-19 2008-12-16 A rotor and x-ray ct scanners

Country Status (4)

Country Link
US (1) US9314220B2 (en)
EP (1) EP2225550A2 (en)
CN (1) CN101903764B (en)
WO (1) WO2009081327A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103674979B (en) * 2012-09-19 2016-12-21 同方威视技术股份有限公司 A kind of luggage and articles CT safe examination system and detector assembly thereof
DE102013221169B4 (en) * 2013-10-18 2017-06-08 Siemens Healthcare Gmbh Rotor with a backplane bus comprising electrical connection elements for making electrical contact with electrical components in a medical device and rotary unit and medical device with such a rotor
DE102013221726B4 (en) * 2013-10-25 2021-08-05 Siemens Healthcare Gmbh High-strength frame for the rotatable bearing ring of a computed tomography device as well as a bearing ring and computed tomography device with such a frame
CN103598895B (en) * 2013-11-28 2015-12-02 中国科学院苏州生物医学工程技术研究所 CT scanner screening arrangement
DE102014217275A1 (en) * 2014-08-29 2016-03-03 Siemens Aktiengesellschaft Rotor for a gantry of a computed tomography device
US10143427B2 (en) * 2016-01-27 2018-12-04 General Electric Company Segmented direct drive motor for use in a computed tomography system
CN114007510A (en) * 2019-07-09 2022-02-01 雫石诚 Medical vehicle, CT device, and drive method
CN112577980B (en) * 2020-12-11 2023-03-28 西安增材制造国家研究院有限公司 Radiation self-shielding industrial online CT

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101768A (en) * 1976-03-03 1978-07-18 Emi Limited Apparatus for computerized tomography having improved anti-scatter collimators
US4132895A (en) * 1976-08-28 1979-01-02 Emi Limited Radiography
WO1999019715A1 (en) * 1997-10-10 1999-04-22 Analogic Corporation Rotary energy shield for computed tomography scanner
JP2004057507A (en) * 2002-07-29 2004-02-26 Toshiba Corp X-ray detector, method of manufacturing through electrode, and x-ray tomography apparatus
WO2005096946A1 (en) * 2004-04-06 2005-10-20 Philips Intellectual Property & Standards Gmbh Modular device for the detection and/or transmission of radiation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1139872A (en) * 1994-02-03 1997-01-08 模拟公司 Pattern detection device of tomography X-ray apparatus
DE19837442A1 (en) * 1998-08-18 2000-03-02 Siemens Ag X-ray computer tomography unit
US6590953B2 (en) * 2000-09-12 2003-07-08 Hitachi Medical Corporation X-ray CT scanner
DE60234538D1 (en) * 2002-05-06 2010-01-07 Koninkl Philips Electronics Nv HIGH RESOLUTION CT SCANNER
US7492857B2 (en) * 2002-12-19 2009-02-17 General Electric Company Self-aligning scintillator-collimator assembly
JP2006528017A (en) * 2003-07-22 2006-12-14 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Radiation mask for 2D CT detector
EP1887937B1 (en) 2005-05-31 2016-10-05 Arineta Ltd. Graded resolution field of view ct scanner
WO2007034357A2 (en) * 2005-09-22 2007-03-29 Philips Intellectual Property & Standards Gmbh Data processing device, tomography apparatus for examination of an object of interest, method of examining an object of interest, computer-readable medium and program element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101768A (en) * 1976-03-03 1978-07-18 Emi Limited Apparatus for computerized tomography having improved anti-scatter collimators
US4132895A (en) * 1976-08-28 1979-01-02 Emi Limited Radiography
WO1999019715A1 (en) * 1997-10-10 1999-04-22 Analogic Corporation Rotary energy shield for computed tomography scanner
JP2004057507A (en) * 2002-07-29 2004-02-26 Toshiba Corp X-ray detector, method of manufacturing through electrode, and x-ray tomography apparatus
WO2005096946A1 (en) * 2004-04-06 2005-10-20 Philips Intellectual Property & Standards Gmbh Modular device for the detection and/or transmission of radiation

Also Published As

Publication number Publication date
CN101903764A (en) 2010-12-01
US20100303209A1 (en) 2010-12-02
EP2225550A2 (en) 2010-09-08
WO2009081327A2 (en) 2009-07-02
CN101903764B (en) 2012-08-29
US9314220B2 (en) 2016-04-19

Similar Documents

Publication Publication Date Title
US10231683B2 (en) Breast imaging apparatus
JP3595261B2 (en) Rotational energy shield for computer tomography scanner
WO2008021671A3 (en) Computed tomography image acquisition
WO2003044563A8 (en) Ct detector-module having radiation shielding for the processing circuitry
WO2009112986A3 (en) Circular tomosynthesis x-ray tube
WO2006129282A8 (en) Graded resolution field of view ct scanner
WO2008037731A3 (en) X-ray system and method for tomosynthetic scanning
EP1266621A4 (en) X-ray ct apparatus
WO2009029604A3 (en) Position tracking and control for a scanning assembly
WO2008022216A3 (en) Personnel x-ray inspection system
GB2565026A (en) Radiation signal processing system
WO2013132361A3 (en) X-ray beam shaper.
CA2725984A1 (en) Scanner device and method for computed tomography imaging
US9314220B2 (en) Rotor and X-ray CT scanners
WO2010133984A3 (en) Detector array with pre-focused anti-scatter grid
JP2007311340A5 (en)
WO2015075897A1 (en) Computed tomographic mammography apparatus
JP2014008361A (en) Radiation generating apparatus and radiographic system
JP3131827U (en) Radiation detector
WO2007111672A3 (en) Concentric dual drum raster scanning beam system and method
CN102170086B (en) Device for generating X rays by laser irradiation of solid cone target
KR20140137731A (en) Apparatus for Radiation Dose Measuring capable of driving the horizontal and rotated and Radiation Detection Devices thereof
JP2009189741A (en) Radiation irradiation apparatus and radiation imaging system
JP2017040581A (en) Photodetector, detection apparatus and detection system
CN209518875U (en) A kind of self-shileding structure for protecting X-ray ionising radiation

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200880121117.8

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08865343

Country of ref document: EP

Kind code of ref document: A2

REEP Request for entry into the european phase

Ref document number: 2008865343

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2008865343

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 12808695

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 4339/CHENP/2010

Country of ref document: IN