JP4726504B2 - 画像形成断層撮影装置 - Google Patents
画像形成断層撮影装置 Download PDFInfo
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- JP4726504B2 JP4726504B2 JP2005020118A JP2005020118A JP4726504B2 JP 4726504 B2 JP4726504 B2 JP 4726504B2 JP 2005020118 A JP2005020118 A JP 2005020118A JP 2005020118 A JP2005020118 A JP 2005020118A JP 4726504 B2 JP4726504 B2 JP 4726504B2
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- Japan
- Prior art keywords
- counterweight
- unbalance
- measuring
- measuring device
- plane
- 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.)
- Expired - Fee Related
Links
- 238000003325 tomography Methods 0.000 title claims description 12
- 238000003384 imaging method Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 8
- 238000011156 evaluation Methods 0.000 description 4
- 238000002591 computed tomography Methods 0.000 description 3
- 239000013598 vector Substances 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
- F16F15/36—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved
-
- 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
- A61B6/44—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
- A61B6/447—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit or the detector unit being mounted to counterpoise or springs
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating imbalance
- G01M1/36—Compensating imbalance by adjusting position of masses built-in the body to be tested
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- General Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Pulmonology (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Testing Of Balance (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Description
図1はX線断層撮影装置の概略側面図、
図2は測定装置の概略側面図、
図3は測定装置の概略横断面図、
図4は図3による測定装置の概略縦断面図、
図5はつりあいおもりの部分斜視図を示す。
2 回転軸線
3 測定装置
4 X線源
5 X線検出器
6 評価電子装置
7 X線ファンビーム
8 測定視野
9 患者検査空間
10 スリップリング
11 コンピュータ
12 モニタ
13,13a,13b センサ
14 他のセンサ
15a,15b つりあいおもり
16a,16b モータ
17a,17b スピンドル
18a,18b レール
Claims (3)
- 不つりあいを測定するための測定手段(13,13a,13b)を有する固定側ユニット(1)を備え、固定側ユニット(1)にリング状測定装置(3)が患者検査空間(9)の周りを回転可能に取付けられ、測定装置(3)に不つりあいを補償するためのつりあいおもり(15a,15b)が設けられ、
つりあいおもり(15a,15b)は、測定装置(3)に、軸線方向に互いに隔てられた2つの平行な平面(E1,E2)において、半径方向にだけ位置調整可能に取付けられ、
各平面(E1,E2)にそれぞれ不つりあいを測定するための測定手段(13a,13b)が付設され、
測定装置(3)の回転角を求めるための他の測定手段(14)が設けられ、
各平面(E1,E2)に、回転軸線(2)に関して90°の角度だけ互いにずらされて配置されている2つのつりあいおもり(15a,15b)が設けられ、
第1の平面(E1)のつりあいおもり(15a)は、回転軸線(2)に関して180°の角度だけ、第2の平面(E2)のつりあいおもり(15b)に対してずらされて配置され、
不つりあい補償のための予め与えられたアルゴリズムに従ってつりあいおもり(15a,15b)を半径方向に位置調整するための制御装置(11)が設けられている
ことを特徴とする画像形成断層撮影装置。 - 各つりあいおもり(15a,15b)をそれぞれ半径方向に位置調整するためのモータ(16a,16b)が設けられていることを特徴とする請求項1記載の画像形成断層撮影装置。
- つりあいおもり(15a,15b)はそれぞれレール(18)で案内されていることを特徴とする請求項1又は2記載の画像形成断層撮影装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004004299A DE102004004299B4 (de) | 2004-01-28 | 2004-01-28 | Bildgebendes Tomographie-Gerät mit Auswuchtvorrichtung |
DE102004004299.3 | 2004-01-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005211660A JP2005211660A (ja) | 2005-08-11 |
JP4726504B2 true JP4726504B2 (ja) | 2011-07-20 |
Family
ID=34801143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005020118A Expired - Fee Related JP4726504B2 (ja) | 2004-01-28 | 2005-01-27 | 画像形成断層撮影装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050199059A1 (ja) |
JP (1) | JP4726504B2 (ja) |
CN (1) | CN100464706C (ja) |
DE (1) | DE102004004299B4 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007170921A (ja) | 2005-12-20 | 2007-07-05 | Rigaku Corp | X線ct装置 |
JP5433151B2 (ja) * | 2008-01-08 | 2014-03-05 | 株式会社東芝 | 回転機械の調整装置、回転機械の調整方法及びx線ct装置の製造方法 |
GB2457060A (en) * | 2008-02-01 | 2009-08-05 | Rolls Royce Plc | Rotor with balance mass |
DE102008028892A1 (de) * | 2008-06-18 | 2009-12-31 | Dittel Messtechnik Gmbh | Wuchteinrichtung, Auswuchtsystem und Auswuchtverfahren |
EP2341833B1 (en) * | 2008-11-05 | 2014-12-10 | Koninklijke Philips N.V. | Controlled gantry imbalance |
CN102346087A (zh) * | 2011-06-17 | 2012-02-08 | 大连交通大学 | 无损动平衡机构 |
EP2706034B1 (de) * | 2012-09-10 | 2015-11-04 | Integrated Dynamics Engineering GmbH | Aktiver Tilger für tieffrequent schwingende Strukturen |
DE102012217966B4 (de) | 2012-10-01 | 2015-09-10 | Siemens Aktiengesellschaft | Anordnung und Verfahren zur tomosynthetischen Fluoroskopie |
DE102014202517A1 (de) * | 2014-02-12 | 2015-08-13 | Siemens Aktiengesellschaft | Rotierbarer Träger, CT-System sowie Verfahren zum Auswuchten eines rotierbaren Trägers |
JP2015231516A (ja) | 2014-05-12 | 2015-12-24 | 株式会社東芝 | X線ct装置 |
EP3171783A1 (en) * | 2014-07-22 | 2017-05-31 | Carestream Health, Inc. | Extremity imaging apparatus for cone beam computed tomography |
CN106153258A (zh) * | 2016-07-29 | 2016-11-23 | 郑州磨料磨具磨削研究所有限公司 | 一种超硬磨料砂轮的精密平衡校正方法 |
CN106198582B (zh) * | 2016-08-31 | 2019-02-15 | 天津三英精密仪器股份有限公司 | 一种用于ct检测的自平衡重心的转盘 |
CN106768643B (zh) * | 2016-11-29 | 2019-06-04 | 国家电网公司 | 一种旋转机械动平衡快速配重调整装置及方法 |
CN107714065A (zh) | 2017-09-29 | 2018-02-23 | 上海联影医疗科技有限公司 | X射线成像设备 |
CN107804014A (zh) * | 2017-12-11 | 2018-03-16 | 南通棉花机械有限公司 | 一种转箱机构 |
DE102021213559B4 (de) | 2021-11-30 | 2023-04-13 | Siemens Healthcare Gmbh | Verfahren zur Stabilisierung einer Gantry eines Computertomographiegeräts und Computertomographiegerät |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4357832A (en) * | 1979-04-20 | 1982-11-09 | Ird Mechanalysis, Inc. | Digital electronic balancing apparatus |
US5201586A (en) * | 1988-09-22 | 1993-04-13 | Basf Aktiengesellschaft | Arrangement for the dynamic compensation of eccentricities of solids of rotation |
JPH02292171A (ja) * | 1989-05-01 | 1990-12-03 | Oomiya Kogyo Kk | 回転工具の不釣合い自動修正方法 |
JPH0674852A (ja) * | 1991-09-19 | 1994-03-18 | Hitachi Shonan Denshi Co Ltd | 回転体の自動フィールドバランス取り機構 |
FR2754866B1 (fr) * | 1996-10-21 | 1999-01-29 | Abb Solyvent Ventec | Dispositif d'equilibrage dynamique et ponderal pour machines a rotors, en particulier pour ventilateurs industriels |
EP0922208A1 (de) * | 1997-05-23 | 1999-06-16 | Hofmann Mess- und Auswuchttechnik GmbH | Verfahren und vorrichtung zum auswuchten von rotoren |
FR2768072B1 (fr) * | 1997-09-08 | 1999-12-17 | E P B Emile Pfalzgraf | Machine de prereglage et d'equilibrage de porte-outil |
DE19743578A1 (de) * | 1997-09-30 | 1999-04-01 | Hofmann Mes Und Auswuchttechni | Verfahren zum Auswuchten eines Rotationskörpers |
JP2001170038A (ja) * | 1999-12-22 | 2001-06-26 | Ge Yokogawa Medical Systems Ltd | ガントリの回転バランス調整装置 |
US6412345B1 (en) * | 2000-09-29 | 2002-07-02 | Ge Medical Systems Global Technology Company, Llc | Balancing of rotational components of CT imaging equipment |
DE10108065B4 (de) * | 2001-02-20 | 2005-09-15 | Siemens Ag | Computertomograph |
US6748806B2 (en) * | 2002-02-27 | 2004-06-15 | Ge Medical Systems Global Technology Company Llc | Dynamic balancing system for computed tomography gantry |
US7286643B2 (en) * | 2003-12-23 | 2007-10-23 | General Electric Company | X-ray tube target balancing features |
-
2004
- 2004-01-28 DE DE102004004299A patent/DE102004004299B4/de not_active Expired - Fee Related
-
2005
- 2005-01-27 JP JP2005020118A patent/JP4726504B2/ja not_active Expired - Fee Related
- 2005-01-28 US US11/045,896 patent/US20050199059A1/en not_active Abandoned
- 2005-01-28 CN CNB2005100061097A patent/CN100464706C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20050199059A1 (en) | 2005-09-15 |
CN100464706C (zh) | 2009-03-04 |
CN1647762A (zh) | 2005-08-03 |
JP2005211660A (ja) | 2005-08-11 |
DE102004004299A1 (de) | 2005-08-25 |
DE102004004299B4 (de) | 2012-04-05 |
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