CA2370151A1 - Position detector with auxiliary means for detecting the direction of the gravity vector - Google Patents

Position detector with auxiliary means for detecting the direction of the gravity vector Download PDF

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Publication number
CA2370151A1
CA2370151A1 CA002370151A CA2370151A CA2370151A1 CA 2370151 A1 CA2370151 A1 CA 2370151A1 CA 002370151 A CA002370151 A CA 002370151A CA 2370151 A CA2370151 A CA 2370151A CA 2370151 A1 CA2370151 A1 CA 2370151A1
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CA
Canada
Prior art keywords
gravity vector
detecting
position detector
auxiliary means
gravity
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.)
Granted
Application number
CA002370151A
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French (fr)
Other versions
CA2370151C (en
Inventor
Robert Hofstetter
Nicolas Guggenheim
Jose L. Scherrer
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AO Technology AG
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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 CA2370151A1 publication Critical patent/CA2370151A1/en
Application granted granted Critical
Publication of CA2370151C publication Critical patent/CA2370151C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/58—Testing, adjusting or calibrating apparatus or devices for radiation diagnosis
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/547—Control of apparatus or devices for radiation diagnosis involving tracking of position of the device or parts of the device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. 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

Abstract

The present invention relates to an imaging system for obtaining an image correctable for the presence of a gravity induced image error. The imaging system includes an imager to obtain an image of an object and a position measurement device to obtain position data indicative of a gravity-induced deformation of the imager. The position data may include gravity vector data indicative of an orientation of a gravity vector.
CA002370151A 1999-05-03 1999-05-03 Position detector with auxiliary means for detecting the direction of the gravity vector Expired - Lifetime CA2370151C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1999/000183 WO2000066971A1 (en) 1999-05-03 1999-05-03 Position detector with auxiliary means for detecting the direction of the gravity vector

Publications (2)

Publication Number Publication Date
CA2370151A1 true CA2370151A1 (en) 2000-11-09
CA2370151C CA2370151C (en) 2008-07-22

Family

ID=4551675

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002370151A Expired - Lifetime CA2370151C (en) 1999-05-03 1999-05-03 Position detector with auxiliary means for detecting the direction of the gravity vector

Country Status (10)

Country Link
US (1) US7277594B2 (en)
EP (1) EP1175592B1 (en)
JP (1) JP4693246B2 (en)
AT (1) ATE242865T1 (en)
AU (1) AU768975B2 (en)
CA (1) CA2370151C (en)
DE (1) DE59905962D1 (en)
DK (1) DK1175592T3 (en)
ES (1) ES2201700T3 (en)
WO (1) WO2000066971A1 (en)

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CN112629410B (en) * 2020-12-09 2022-07-01 苏州热工研究院有限公司 Non-contact measuring equipment and measuring method for inclination angle of space rod piece

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US7277594B2 (en) 2007-10-02
EP1175592B1 (en) 2003-06-11
CA2370151C (en) 2008-07-22
WO2000066971A1 (en) 2000-11-09
ATE242865T1 (en) 2003-06-15
JP2002543410A (en) 2002-12-17
ES2201700T3 (en) 2004-03-16
JP4693246B2 (en) 2011-06-01
AU768975B2 (en) 2004-01-15
EP1175592A1 (en) 2002-01-30
DE59905962D1 (en) 2003-07-17
DK1175592T3 (en) 2003-10-06
US20020109705A1 (en) 2002-08-15

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