GB1437283A - Radiographic apparatus - Google Patents
Radiographic apparatusInfo
- Publication number
- GB1437283A GB1437283A GB4502975A GB4502975A GB1437283A GB 1437283 A GB1437283 A GB 1437283A GB 4502975 A GB4502975 A GB 4502975A GB 4502975 A GB4502975 A GB 4502975A GB 1437283 A GB1437283 A GB 1437283A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cone
- image
- radiation
- size
- receptor
- 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
Links
- 230000005855 radiation Effects 0.000 abstract 5
- 238000012544 monitoring process Methods 0.000 abstract 1
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
- A61B6/06—Diaphragms
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/20—Control of position or direction using feedback using a digital comparing device
-
- 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
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/548—Remote control of the apparatus or devices
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- High Energy & Nuclear Physics (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- X-Ray Techniques (AREA)
- Radiation-Therapy Devices (AREA)
- Radiography Using Non-Light Waves (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
1437283 Automatic control MACHLETT LABORATORIES Inc 24 April 1974 [26 April 1973] 45029/75 Divided out of 1437282 Heading G3N [Also in Division H5] A radiographic apparatus comprises means for directing radiation through a shutter aperture on to an image receptor, means for adjusting the aperture and distance between source and receptor and an electro-mechanical sensing means providing an electrical output signal proportional to both the size of the shutter aperture and the distance, so that it represents the size of the field of radiation at the image receptor. As shown, a cone 30 of X-radiation generated in a tube 16 passes through a shutter, comprising longitudinally extending leaves 37 of lead which overlap to form a cone. The leaves are connected to a ring 38 which is adjusted, to set the aperture 36, by a motor 138. The ring may be manually adjusted by a knob 40. The cone of radiation passes through a patient 42 to an image receptor 46, such as an image intensifier tube. The tube 16 is carried on a cantilever arm, Fig. 1 (not shown), so that the source-to-image distance S.I.D. can be varied. Variation in S.I.D. is indicated by a coupled drum 106 carrying cams 108 which actuate switches 110 at selected S.I.D.'s to energize lamps 112. In order that the cross-section of the cone 30 is limited to that necessary to cover a screen 48 of the image receptor, a collimation monitoring unit, see Specification 1437282 Division G2-G3, is responsive to signals from a potentiometer 120, representative of S.I.D., a potentiometer 72, representative of image size, and a potentiometer 130, providing feedback from the drive to the cone-ring 38. A logic arrangement is provided whereby the final positioning movement, consequent on a change of S.I.D. or image screen, is such as to tend to keep the cone size at a minus tolerance. In an alternative arrangement, Fig. 7 (not shown), the axis of the cone of radiation is vertical and two motors are employed to adjust plates determining the long and short dimensions of a pyramidal beam of radiation directed towards a rectangular screen of an image receptor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US354826A US3863073A (en) | 1973-04-26 | 1973-04-26 | Automatic system for precise collimation of radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1437283A true GB1437283A (en) | 1976-05-26 |
Family
ID=23395056
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1794974A Expired GB1437282A (en) | 1973-04-26 | 1974-04-24 | Electromechanical control systems |
| GB4502975A Expired GB1437283A (en) | 1973-04-26 | 1974-04-24 | Radiographic apparatus |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1794974A Expired GB1437282A (en) | 1973-04-26 | 1974-04-24 | Electromechanical control systems |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3863073A (en) |
| JP (1) | JPS5440197B2 (en) |
| CA (1) | CA1033854A (en) |
| DE (1) | DE2420364B2 (en) |
| GB (2) | GB1437282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127173A (en) * | 1982-09-13 | 1984-04-04 | Varian Associates | Thin fieldlight mirror for medical electron accelerators |
Families Citing this family (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018716A (en) * | 1975-06-16 | 1977-04-19 | The Machlett Laboratories, Incorporated | Radiographic system |
| DE2759073C3 (en) * | 1977-12-30 | 1981-10-22 | Siemens AG, 1000 Berlin und 8000 München | Electron tube |
| US4416022A (en) * | 1982-03-29 | 1983-11-15 | Litton Industrial Products, Inc. | Prism light-line system |
| US4443888A (en) * | 1982-03-29 | 1984-04-17 | Litton Industrial Products, Inc. | SID Monitor |
| JPH02238448A (en) * | 1989-03-13 | 1990-09-20 | Konica Corp | Radiographic device |
| US7609806B2 (en) * | 2004-10-18 | 2009-10-27 | Hologic Inc. | Mammography system and method employing offset compression paddles, automatic collimations, and retractable anti-scatter grid |
| EP1444873A2 (en) | 2001-10-19 | 2004-08-11 | Hologic, Inc. | Mammography system and method employing offset compression paddles, automatic collimation, and retractable anti-scatter grid |
| US8565372B2 (en) | 2003-11-26 | 2013-10-22 | Hologic, Inc | System and method for low dose tomosynthesis |
| US10638994B2 (en) | 2002-11-27 | 2020-05-05 | Hologic, Inc. | X-ray mammography with tomosynthesis |
| US7616801B2 (en) | 2002-11-27 | 2009-11-10 | Hologic, Inc. | Image handling and display in x-ray mammography and tomosynthesis |
| US8571289B2 (en) | 2002-11-27 | 2013-10-29 | Hologic, Inc. | System and method for generating a 2D image from a tomosynthesis data set |
| US7577282B2 (en) | 2002-11-27 | 2009-08-18 | Hologic, Inc. | Image handling and display in X-ray mammography and tomosynthesis |
| US7123684B2 (en) * | 2002-11-27 | 2006-10-17 | Hologic, Inc. | Full field mammography with tissue exposure control, tomosynthesis, and dynamic field of view processing |
| US7662082B2 (en) | 2004-11-05 | 2010-02-16 | Theragenics Corporation | Expandable brachytherapy device |
| WO2006055830A2 (en) | 2004-11-15 | 2006-05-26 | Hologic, Inc. | Matching geometry generation and display of mammograms and tomosynthesis images |
| EP1816965B1 (en) * | 2004-11-26 | 2016-06-29 | Hologic, Inc. | Integrated multi-mode mammography/tomosynthesis x-ray system |
| DE102005002559B4 (en) * | 2005-01-19 | 2007-06-21 | Siemens Ag | X-ray device with error protection circuit |
| US7242749B2 (en) * | 2005-11-15 | 2007-07-10 | General Electric Company | Methods and systems for dynamic pitch helical scanning |
| US7465268B2 (en) | 2005-11-18 | 2008-12-16 | Senorx, Inc. | Methods for asymmetrical irradiation of a body cavity |
| JP5554927B2 (en) | 2006-02-15 | 2014-07-23 | ホロジック， インコーポレイテッド | Breast biopsy and needle localization using tomosynthesis system |
| US7630533B2 (en) | 2007-09-20 | 2009-12-08 | Hologic, Inc. | Breast tomosynthesis with display of highlighted suspected calcifications |
| US7792245B2 (en) * | 2008-06-24 | 2010-09-07 | Hologic, Inc. | Breast tomosynthesis system with shifting face shield |
| US7991106B2 (en) | 2008-08-29 | 2011-08-02 | Hologic, Inc. | Multi-mode tomosynthesis/mammography gain calibration and image correction using gain map information from selected projection angles |
| US9248311B2 (en) | 2009-02-11 | 2016-02-02 | Hologic, Inc. | System and method for modifying a flexibility of a brachythereapy catheter |
| US9579524B2 (en) | 2009-02-11 | 2017-02-28 | Hologic, Inc. | Flexible multi-lumen brachytherapy device |
| US10207126B2 (en) | 2009-05-11 | 2019-02-19 | Cytyc Corporation | Lumen visualization and identification system for multi-lumen balloon catheter |
| ES2862525T3 (en) | 2009-10-08 | 2021-10-07 | Hologic Inc | Needle Breast Biopsy System and Method of Use |
| US9352172B2 (en) | 2010-09-30 | 2016-05-31 | Hologic, Inc. | Using a guide member to facilitate brachytherapy device swap |
| KR101836549B1 (en) | 2010-10-05 | 2018-03-08 | 홀로직, 인크. | Upright x-ray breast imaging with a ct mode, multiple tomosynthesis modes, and a mammography mode |
| US9075903B2 (en) | 2010-11-26 | 2015-07-07 | Hologic, Inc. | User interface for medical image review workstation |
| US10342992B2 (en) | 2011-01-06 | 2019-07-09 | Hologic, Inc. | Orienting a brachytherapy applicator |
| WO2012122399A1 (en) | 2011-03-08 | 2012-09-13 | Hologic, Inc. | System and method for dual energy and/or contrast enhanced breast imaging for screening, diagnosis and biopsy |
| EP2782505B1 (en) | 2011-11-27 | 2020-04-22 | Hologic, Inc. | System and method for generating a 2d image using mammography and/or tomosynthesis image data |
| CN104135935A (en) | 2012-02-13 | 2014-11-05 | 霍罗吉克公司 | System and method for navigating a tomosynthesis stack using synthesized image data |
| EP2967479B1 (en) | 2013-03-15 | 2018-01-31 | Hologic Inc. | Tomosynthesis-guided biopsy in prone |
| JP6523265B2 (en) | 2013-10-09 | 2019-05-29 | ホロジック, インコーポレイテッドHologic, Inc. | X-ray chest tomosynthesis to improve spatial resolution including flattened chest thickness direction |
| EP3060132B1 (en) | 2013-10-24 | 2019-12-04 | Hologic, Inc. | System and method for navigating x-ray guided breast biopsy |
| EP3868301B1 (en) | 2014-02-28 | 2023-04-05 | Hologic, Inc. | System and method for generating and displaying tomosynthesis image slabs |
| US11076820B2 (en) | 2016-04-22 | 2021-08-03 | Hologic, Inc. | Tomosynthesis with shifting focal spot x-ray system using an addressable array |
| CN106773513B (en) * | 2016-12-30 | 2018-07-20 | 成都信息工程大学 | The method of the ray automatic tracing imaging of digital radiography |
| CN106873302B (en) * | 2016-12-30 | 2018-09-11 | 成都信息工程大学 | A kind of method of detector longitudinal direction automatic tracing bulb focus radial imaging |
| CN110621231B (en) | 2017-03-30 | 2024-02-23 | 豪洛捷公司 | System and method for hierarchical multi-level feature image synthesis and representation |
| EP3600051B1 (en) | 2017-03-30 | 2024-05-01 | Hologic, Inc. | Method for synthesizing low-dimensional image data from high-dimensional image data using an object grid enhancement |
| WO2018183550A1 (en) | 2017-03-30 | 2018-10-04 | Hologic, Inc. | System and method for targeted object enhancement to generate synthetic breast tissue images |
| EP3641635A4 (en) | 2017-06-20 | 2021-04-07 | Hologic, Inc. | Dynamic self-learning medical image method and system |
| US11707244B2 (en) | 2017-08-16 | 2023-07-25 | Hologic, Inc. | Techniques for breast imaging patient motion artifact compensation |
| EP3449835B1 (en) | 2017-08-22 | 2023-01-11 | Hologic, Inc. | Computed tomography system and method for imaging multiple anatomical targets |
| US11090017B2 (en) | 2018-09-13 | 2021-08-17 | Hologic, Inc. | Generating synthesized projection images for 3D breast tomosynthesis or multi-mode x-ray breast imaging |
| EP3832689A3 (en) | 2019-12-05 | 2021-08-11 | Hologic, Inc. | Systems and methods for improved x-ray tube life |
| US11471118B2 (en) | 2020-03-27 | 2022-10-18 | Hologic, Inc. | System and method for tracking x-ray tube focal spot position |
| US11786191B2 (en) | 2021-05-17 | 2023-10-17 | Hologic, Inc. | Contrast-enhanced tomosynthesis with a copper filter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3206604A (en) * | 1962-11-13 | 1965-09-14 | Gen Electric | Adjustable x-ray field defining cone and field size indicating means |
| US3502878A (en) * | 1967-09-22 | 1970-03-24 | Us Health Education & Welfare | Automatic x-ray apparatus for limiting the field size of a projected x-ray beam in response to film size and to source-to-film distance |
| US3581094A (en) * | 1968-11-07 | 1971-05-25 | Machlett Lab Inc | X-ray apparatus |
| US3643095A (en) * | 1969-11-28 | 1972-02-15 | Picker Corp | Automatic collimator control for x-ray apparatus |
-
1973
- 1973-04-26 US US354826A patent/US3863073A/en not_active Expired - Lifetime
-
1974
- 1974-03-28 CA CA196,204A patent/CA1033854A/en not_active Expired
- 1974-04-24 GB GB1794974A patent/GB1437282A/en not_active Expired
- 1974-04-24 GB GB4502975A patent/GB1437283A/en not_active Expired
- 1974-04-26 DE DE2420364A patent/DE2420364B2/en not_active Ceased
- 1974-04-26 JP JP4674874A patent/JPS5440197B2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2127173A (en) * | 1982-09-13 | 1984-04-04 | Varian Associates | Thin fieldlight mirror for medical electron accelerators |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5019384A (en) | 1975-02-28 |
| DE2420364A1 (en) | 1974-11-07 |
| JPS5440197B2 (en) | 1979-12-01 |
| GB1437282A (en) | 1976-05-26 |
| DE2420364B2 (en) | 1980-09-11 |
| US3863073A (en) | 1975-01-28 |
| CA1033854A (en) | 1978-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930424 |