US3670163A - Radiological examination apparatus - Google Patents
Radiological examination apparatus Download PDFInfo
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- US3670163A US3670163A US52305A US3670163DA US3670163A US 3670163 A US3670163 A US 3670163A US 52305 A US52305 A US 52305A US 3670163D A US3670163D A US 3670163DA US 3670163 A US3670163 A US 3670163A
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- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 210000000056 organ Anatomy 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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
- A61B6/44—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
-
- 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
- A61B6/501—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 diagnosis of the head, e.g. neuroimaging or craniography
-
- 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
- A61B6/512—Intraoral means
-
- 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
Definitions
- ABSTRACT A support for a patient. such as a chair. table or the like, is movably mounted on a track to slide horizontally, or move up and down, the track itself being rotatable within a ring-like frame forming a common structural support for the patient supporting device, as well as for an X-ray examining system including an X-ray source and an X-ray receiver, so as to position the patient to have the region of the patients body to be examined at the center of the ring-shaped structure.
- the X- ray examining device itself is mounted on a two-axis gimbal, having its center of rotation coincident with the center of the ring-shaped structure, so that the same region of the patient's body can be examined from all angular positions in three dimensions, that is, can be spherically examined.
- the present invention relates to radiological examination apparatus, and more particularly to structural arrangements to support the patient with respect to an X-ray source and an X- ray image receiver in such a way that a region of the patients body can be examined from all angular positions in space, and regardless of the position of the patient himself.
- an X-ray examining assembly formed of an X-ray source, and an X-ray receiver (such as a screen, a radiographic film, an X-ray image intensifier, an X-ray image television receiving tube or the like) in various positions with respect to the patients head, in such a manner that the X-ray examining assembly can be located around the patients head in three dimensions.
- an X-ray examining assembly formed of an X-ray source, and an X-ray receiver (such as a screen, a radiographic film, an X-ray image intensifier, an X-ray image television receiving tube or the like) in various positions with respect to the patients head, in such a manner that the X-ray examining assembly can be located around the patients head in three dimensions.
- an X-ray examining assembly formed of an X-ray source, and an X-ray receiver (such as a screen, a radiographic film, an X-ray image intensifier, an X-ray image television receiving tube or the like) in various positions
- Such medical examining techniques have already been done with apparatus in which the assembly of an X-ray generating tube and an X-ray image receiver is arranged to describe a spherical path (or a portion thereof) in space.
- the center of the sphere can be moved with respect to a fixed vertical axis.
- Apparatus to carry out such X-ray examination ineludes carrying arms carrying orientational axes forming right angles between themselves and the direction of radiation; in another system, a source-image receiver is movable about an axis which is swingable following an arc of a circle.
- the patient himself is supported on a table, or similar support, permitting complete rotation in his sagittal plane. It has been the practice to provide patient supports secured to the floor of the examining room, independent of the mountings and holders of the radiological apparatus, the patient supports being arranged to permit rotation of the patient about one, or two axes.
- FIG. 1 is a schematic front view of the apparatus in which the movable elements are placed in a position facilitating explanation of the invention.
- FIG. 2 is a side view of the apparatus of FIG. 1, partly in section, through an axial plane.
- a fixed support B is provided to permit movement of the entire radiological apparatus in positions along the circumference of a sphere.
- an X-ray examining device is provided including an X-ray source 2 and an X-ray image pickup 3.
- the image pickup 3 may take many forms, for example an X-ray image intensifier connected to a television receiver, a radiographic plate, or the like.
- the X-ray examining assembly formed of source 2 and receiver or picture generator 3 is interconnected by a carrying arm 1, rotatable about an axis provided by shaft 4 4.
- Shaft 4, itself, is mounted in a gimbal 5 rotating, in turn, about axis provided by shafts 6 and located in the plane defined by the axis R-R of the X-ray generator 2.
- Gimbal 5 is carried at its extremities by two coaxial shafts 6 respectively mounted on two arms 10 which, in turn, are mounted on a ring-shaped structural support 9.
- the intersection of the axes 4, and that of shafts 6, defines a center 0 of an examining sphere.
- the axis R-R which defines the path of radiation is congruent with the axis of shafts 6.
- the support itself is also mounted on the ring-shaped support 9 by mounting means allowing its displacement along two axes which are at right angles to each other, as indicated by arrows f f, and fl f in order to center the portion of the body of patient P which is to be radiologically examined to coincide with the center 0 of the sphere.
- the patient support, together with the patient is rotatable in a vertical axis 8, corresponding generally to the longitudinal axis of the patient, permitting rotation of the centered organ of the patients body whose center is located at point 0.
- the support 7 may be displaced in the plane of the axis 4 of rotation, and parallel thereto along a traverse II which is an integral part of ring-shaped support 9..
- Traverse I1 is secured to the ring-shaped member 9, for example by means of a suitable bracket, mounted on the ring 9 at point 12 (FIG. 2).
- the entire unit of radiological apparatus and patient support is thus a single assembly, by interconnection by the ring-shaped member 9 of which one axis is perpendicular to the plane of the paper of FIG. 1 and passes through the center 0 of the sphere.
- the ring 9 itself can rotate in the support Bin a vertical plane by means of a drive (which may be remotecontrolled) and which is not shown and well known in the art, for example by a chain transmission a rack and pinion, or worm gear arrangement.
- a drive which may be remotecontrolled
- the entire unit of radiological apparatus together with patient may be rotated in a vertical plane.
- the structure of the apparatus accurately interconnects the position for the patient, on its support, and the source of X-rays, as well as the X-ray receiver for all axes of incidence, that is for all paths of the X-ray beam; thus, a large number of possible X-ray examining positions can be covered, with little handling and permitting substantial versatility and speed in examination.
- the comfort of the patient is increased and ease of operation for the technician provided.
- automatic sequences of pictures can readily be taken, programmed in accordance with a desired pattern, so that a sequence of X-ray images of the same region of the patients body can be obtained, looked at from various angles and orientations.
- Radiological apparatus for examining a patient in any position in space comprising:
- a common structural support mounted on said base for rotation about a first horizontal axis
- a fork-shaped bracket having extremities respectively mounted on said shafts pair for rotation about said second axis;
- a further shaft mounted on said bracket, at about the middle thereof, for defining a third axis perpendicular to said second axis; said first, second and third axes intersecting at one point of intersection;
- an X-ray source mounted on one extremity of said member for emitting an X-ray beam, the central ray thereof transversing said intersection point;
- an X-ray receiver for supplying a visible picture mounted on the other extremity of said arm member in radiation receiving relation relatively to said X-ray source;
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- X-Ray Techniques (AREA)
Abstract
A support for a patient, such as a chair, table or the like, is movably mounted on a track to slide horizontally, or move up and down, the track itself being rotatable within a ring-like frame forming a common structural support for the patient supporting device, as well as for an X-ray examining system including an Xray source and an X-ray receiver, so as to position the patient to have the region of the patient''s body to be examined at the center of the ring-shaped structure. The X-ray examining device itself is mounted on a two-axis gimbal, having its center of rotation coincident with the center of the ring-shaped structure, so that the same region of the patient''s body can be examined from all angular positions in three dimensions, that is, can be spherically examined.
Description
United States Patent Lajus 14 1 June 13, 1972 [54] RADIOLOGICAL EXAMINATION 2,103,693 12/1937 Pohl ..250/50 APPARATUS 3,449.569 6/l969 Oller.... ...250/50 3,500,045 3/1970 Rossi ...250/58 [72] inventor: Pierre Lglus, Meudon, France [73] Assignee: Compagnle Generale de Radiologie, Paris, 'r Lawrence France Assistant Examiner-C. E. Church Attorney-Flynn & Frishauf 22 Filed: July 6,1970
[30] Foreign Application Priority Data July 16, i969 France ..6924187 [52] US. Cl ..250/50, 250/57. 250/58, 250/65 R [5!] Int. Cl. ..G03b 41/16 [58] Field ofSearch ..250/50, 57, 65, 58
[56] References Cited UNlTED STATES PATENTS 1,573,57l 2/l926 Pohl ..250/57 Appl. No.: 52,305
[57] ABSTRACT A support for a patient. such as a chair. table or the like, is movably mounted on a track to slide horizontally, or move up and down, the track itself being rotatable within a ring-like frame forming a common structural support for the patient supporting device, as well as for an X-ray examining system including an X-ray source and an X-ray receiver, so as to position the patient to have the region of the patients body to be examined at the center of the ring-shaped structure. The X- ray examining device itself is mounted on a two-axis gimbal, having its center of rotation coincident with the center of the ring-shaped structure, so that the same region of the patient's body can be examined from all angular positions in three dimensions, that is, can be spherically examined.
1 Claim, 2 Drawing Figures PATENTEDJUN 13 m2 SHEET 2 BF 2 RADIOLOGICAL EXAMINATION APPARATUS The present invention relates to radiological examination apparatus, and more particularly to structural arrangements to support the patient with respect to an X-ray source and an X- ray image receiver in such a way that a region of the patients body can be examined from all angular positions in space, and regardless of the position of the patient himself.
In certain radiological examinations, and particularly in X- ray examination of the head, it is necessary to locate an X-ray examining assembly formed of an X-ray source, and an X-ray receiver (such as a screen, a radiographic film, an X-ray image intensifier, an X-ray image television receiving tube or the like) in various positions with respect to the patients head, in such a manner that the X-ray examining assembly can be located around the patients head in three dimensions. In some of these examinations it is desirable that the patient be permitted to move, for reasons of comfort or, for example, to study the level and position of liquids or gases previously injected. Such medical examining techniques have already been done with apparatus in which the assembly of an X-ray generating tube and an X-ray image receiver is arranged to describe a spherical path (or a portion thereof) in space. The center of the sphere can be moved with respect to a fixed vertical axis. Apparatus to carry out such X-ray examination ineludes carrying arms carrying orientational axes forming right angles between themselves and the direction of radiation; in another system, a source-image receiver is movable about an axis which is swingable following an arc of a circle. The patient himself is supported on a table, or similar support, permitting complete rotation in his sagittal plane. It has been the practice to provide patient supports secured to the floor of the examining room, independent of the mountings and holders of the radiological apparatus, the patient supports being arranged to permit rotation of the patient about one, or two axes.
It has been found difiicult in such installations to maintain the center of radiation constant with respect to the sections desired to be radiated, with out substantial manipulation of equipment or the patient on his support. Thus, it proved difficult to maintain the virtual center of the sphere described by the various positions of the X-ray source constant. It easily happened that the center of rotation was subjected to a substantially vertical displacement, so that the center itself, upon movement of the X-ray source in its given path would describe a circular path. Such movement of the center of the sphere defined by various possible paths of the X-ray system was superimposed on movement of the patients head itself. the maximum off-center position which is a function of the diameter of the error circle described by the movement of the patient, was difficult to be compensated except by moving the support of the patient by a similar, compensating amount. To obtain accurate and clearly defined X-ray images, therefore, required complicated and careful manipulation, and it is almost impossible to design appropriate power-operated displacement arrangements which may be remote controlled, because of The variety of possible positions.
It is an object of the present invention to provide a radiological examining apparatus, which can easily be operated by remote control and in which the center of examined part, of the parients body, with respect to all possible axes of radiation, remains constant.
The invention will be described by way of example with reference to the accompanying drawings, wherein:
FIG. 1 is a schematic front view of the apparatus in which the movable elements are placed in a position facilitating explanation of the invention; and
FIG. 2 is a side view of the apparatus of FIG. 1, partly in section, through an axial plane.
A fixed support B is provided to permit movement of the entire radiological apparatus in positions along the circumference of a sphere. Basically, an X-ray examining device is provided including an X-ray source 2 and an X-ray image pickup 3. The image pickup 3 may take many forms, for example an X-ray image intensifier connected to a television receiver, a radiographic plate, or the like. The X-ray examining assembly formed of source 2 and receiver or picture generator 3 is interconnected by a carrying arm 1, rotatable about an axis provided by shaft 4 4. Shaft 4, itself, is mounted in a gimbal 5 rotating, in turn, about axis provided by shafts 6 and located in the plane defined by the axis R-R of the X-ray generator 2. Gimbal 5 is carried at its extremities by two coaxial shafts 6 respectively mounted on two arms 10 which, in turn, are mounted on a ring-shaped structural support 9. The intersection of the axes 4, and that of shafts 6, defines a center 0 of an examining sphere. In FIG. 1, the axis R-R which defines the path of radiation is congruent with the axis of shafts 6.
A patient support 7, which may be a chair, table, or the like, is provided to locate the patient P in sitting or lying-down position. The support itself is also mounted on the ring-shaped support 9 by mounting means allowing its displacement along two axes which are at right angles to each other, as indicated by arrows f f, and fl f in order to center the portion of the body of patient P which is to be radiologically examined to coincide with the center 0 of the sphere. In sitting position, as shown in FIG. I, the patient support, together with the patient, is rotatable in a vertical axis 8, corresponding generally to the longitudinal axis of the patient, permitting rotation of the centered organ of the patients body whose center is located at point 0. The support 7 may be displaced in the plane of the axis 4 of rotation, and parallel thereto along a traverse II which is an integral part of ring-shaped support 9.. Traverse I1 is secured to the ring-shaped member 9, for example by means of a suitable bracket, mounted on the ring 9 at point 12 (FIG. 2). The entire unit of radiological apparatus and patient support is thus a single assembly, by interconnection by the ring-shaped member 9 of which one axis is perpendicular to the plane of the paper of FIG. 1 and passes through the center 0 of the sphere. The ring 9 itself can rotate in the support Bin a vertical plane by means of a drive (which may be remotecontrolled) and which is not shown and well known in the art, for example by a chain transmission a rack and pinion, or worm gear arrangement. Thus, the entire unit of radiological apparatus together with patient may be rotated in a vertical plane. The structure of the apparatus accurately interconnects the position for the patient, on its support, and the source of X-rays, as well as the X-ray receiver for all axes of incidence, that is for all paths of the X-ray beam; thus, a large number of possible X-ray examining positions can be covered, with little handling and permitting substantial versatility and speed in examination. The comfort of the patient is increased and ease of operation for the technician provided. By mean of automatic, or remote-controlled positioning, automatic sequences of pictures can readily be taken, programmed in accordance with a desired pattern, so that a sequence of X-ray images of the same region of the patients body can be obtained, looked at from various angles and orientations.
I claim:
I. Radiological apparatus for examining a patient in any position in space comprising:
a fixed base;
a common structural support mounted on said base for rotation about a first horizontal axis;
a pair of coaxial shafts rotatably mounted on said support to both sides of said first axis for defining a second axis perpendicular to said first one;
a fork-shaped bracket having extremities respectively mounted on said shafts pair for rotation about said second axis;
a further shaft mounted on said bracket, at about the middle thereof, for defining a third axis perpendicular to said second axis; said first, second and third axes intersecting at one point of intersection;
an arm member mounted, at about its middle, on said further shaft for rotation about said third axis, said arm member having two extremities;
an X-ray source mounted on one extremity of said member for emitting an X-ray beam, the central ray thereof transversing said intersection point;
an X-ray receiver for supplying a visible picture mounted on the other extremity of said arm member in radiation receiving relation relatively to said X-ray source;
a carrying member integral with said common structural support and including a straight portion parallel to said second axis;
a mounting member mounted on said straight portion for displacement therealong; and
means for supporting said patient movably, mounted on said mounting member, on the one hand, for rotation about a seas:
Claims (1)
1. Radiological apparatus for examining a patient in any position in space comprising: a fixed base; a common structural support mounted on said base for rotation about a first horizontal axis; a pair of coaxial shafts rotatably mounted on said support to both sides of said first axis for defining a second axis perpendicular to said first one; a fork-shaped bracket having extremities respectively mounted on said shafts pair for rotation about said second axis; a further shaft mounted on said bracket, at about the middle thereof, for defining a third axis perpendicular to said second axis; said first, second and third axes intersecting at one point of intersection; an arm member mounted, at about its middle, on said further shaft for rotation about said third axis, said arm member having two extremities; an X-ray source mounted on one extremity of said member for emitting an X-ray beam, the central ray thereof transversing said intersection point; an X-ray receiver for supplying a visible picture mounted on the other extremity of said arm member in radiation receiving relation relatively to said X-ray source; a carrying member integral with said common structural support and including a straight portion parallel to said second axis; a mounting member mounted on said straight portion for displacement therealong; and means for supporting said patient movably, mounted on said mounting member, on the one hand, for rotation about a further axis parallel to a line perpendicular to both said first and said second axes and, on the other hand, for displacement in directions perpendicular to said straight portion, thereby allowing the locating of a predetermined organ within said patient''s body at said intersection point and the displacement of said X-ray source about a sphere whose center is located at said intersection point for carrying out X-ray examinations under substantially all possible angles of incidence of said X-rays relatively to said point.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR696924187A FR2054492B1 (en) | 1969-07-16 | 1969-07-16 |
Publications (1)
Publication Number | Publication Date |
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US3670163A true US3670163A (en) | 1972-06-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US52305A Expired - Lifetime US3670163A (en) | 1969-07-16 | 1970-07-06 | Radiological examination apparatus |
Country Status (5)
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---|---|
US (1) | US3670163A (en) |
JP (1) | JPS511398B1 (en) |
DE (1) | DE7018349U (en) |
FR (1) | FR2054492B1 (en) |
GB (1) | GB1297573A (en) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3833813A (en) * | 1972-09-25 | 1974-09-03 | Philips Corp | Device for examining a patient, in particular by means of x-rays |
US3852611A (en) * | 1972-05-05 | 1974-12-03 | Radiologie Cie Gle | Radiodiagnostic apparatus including a pivotable x-ray table |
US3908126A (en) * | 1974-01-02 | 1975-09-23 | Pennwalt Corp S S White Dental | X-ray apparatus for providing panoramic radiographic projections |
US3934140A (en) * | 1973-10-12 | 1976-01-20 | Establissements Dutertre | X-ray diagnostic apparatus in particular for examining the injured |
US3952201A (en) * | 1973-07-21 | 1976-04-20 | Emi Limited | Radiography |
US3965357A (en) * | 1974-03-01 | 1976-06-22 | Emi Patents Limited | Apparatus for examining a body by means of penetrating radiation |
US3973128A (en) * | 1973-08-18 | 1976-08-03 | Emi Limited | Tomography |
US3991317A (en) * | 1973-07-05 | 1976-11-09 | Siemens Aktiengesellschaft | X-ray examining apparatus |
EP0011407A1 (en) * | 1978-10-31 | 1980-05-28 | Pfizer Inc. | X-ray examination apparatus, particularly for X-ray photographs of the head |
US4209706A (en) * | 1976-11-26 | 1980-06-24 | Varian Associates, Inc. | Fluoroscopic apparatus mounting fixture |
US4541108A (en) * | 1984-01-30 | 1985-09-10 | John K. Grady | X-Ray apparatus with tilting table |
US4639941A (en) * | 1968-08-23 | 1987-01-27 | Emi Limited | Radiography |
US4646335A (en) * | 1984-01-02 | 1987-02-24 | Orion-Yhtyma | Apparatus for X-ray photography of the area of the dentition and of the jaws |
US4649560A (en) * | 1984-01-30 | 1987-03-10 | John K. Grady | Digital X-ray stand |
US4683581A (en) * | 1984-02-01 | 1987-07-28 | Orion-Yhtyma | Apparatus for X-ray photography of the area of the dentition and of the jaws |
US4705955A (en) * | 1985-04-02 | 1987-11-10 | Curt Mileikowsky | Radiation therapy for cancer patients |
US4769828A (en) * | 1975-02-21 | 1988-09-06 | Emi Limited | Radiography |
US4987585A (en) * | 1989-04-04 | 1991-01-22 | General Electric Company | X-ray positioner for multi-axis profiling |
WO1991007131A1 (en) * | 1989-11-13 | 1991-05-30 | Marquardt Mark R | Examination unit including positionable patient chair, examination device and support system |
US5052036A (en) * | 1990-04-02 | 1991-09-24 | Grady John K | X-ray stand with laterally inclined rotation axis |
US5287546A (en) * | 1992-09-14 | 1994-02-15 | Lunar Corporation | Patient positioning apparatus for bone scanning |
US5410584A (en) * | 1992-04-29 | 1995-04-25 | Siemens Aktiengesellschaft | Apparatus for supporting a radiation transmitter |
US6259762B1 (en) * | 1997-08-20 | 2001-07-10 | Deutsches Krebsforschungszentrum Stiftung Des Offentlichen Rechts | Radiation system with several radiation sources directed to a control point |
US6375355B1 (en) | 1999-03-10 | 2002-04-23 | Joseph Fortin | Moveable table |
EP1588664A1 (en) * | 2004-04-21 | 2005-10-26 | Canon Kabushiki Kaisha | X-Ray imaging apparatus and its control method |
US20130320234A1 (en) * | 2012-06-01 | 2013-12-05 | General Electric Company | Methods and systems for positioning detectors for nuclear medicine imaging |
CN103462631A (en) * | 2013-09-22 | 2013-12-25 | 江苏美伦影像系统有限公司 | Multi-angle cone beam CT (Computed Tomography) imager |
CN107456242A (en) * | 2017-09-22 | 2017-12-12 | 江苏美伦影像系统有限公司 | A kind of oral cavity tomography system based on curve panoramic scanning |
US10499861B2 (en) | 2017-09-06 | 2019-12-10 | Zap Surgical Systems, Inc. | Self-shielded, integrated-control radiosurgery system |
US11684446B2 (en) | 2019-02-27 | 2023-06-27 | Zap Surgical Systems, Inc. | Device for radiosurgical treatment of uterine fibroids |
US11826582B2 (en) | 2017-05-05 | 2023-11-28 | Zap Surgical Systems, Inc. | Revolving radiation collimator |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2750781A1 (en) * | 1976-11-26 | 1978-06-01 | Varian Associates | DEVICE FOR EXAMINATION OF THE INSIDE OF THE BODY, IN PARTICULAR FLUOROSCOPIC X-RAY SYSTEM |
US4503331A (en) * | 1982-04-21 | 1985-03-05 | Technicare Corporation | Non-circular emission computed tomography |
Citations (4)
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US1573571A (en) * | 1924-03-28 | 1926-02-16 | Pohl Ernst | Table for X-ray transradiation |
US2103693A (en) * | 1934-02-12 | 1937-12-28 | Pohl Ernst | Radiographic couch |
US3449569A (en) * | 1966-07-22 | 1969-06-10 | Jose L Garcia Oller | Radiological apparatus wherein the x-ray source is mounted for rotational and straight-line movement |
US3500045A (en) * | 1965-09-21 | 1970-03-10 | Generay Gen Radiologica | Tiltable x-ray table supporting an x-ray tube and detector for displacement and rotation in two directions relative to the table |
-
1969
- 1969-07-16 FR FR696924187A patent/FR2054492B1/fr not_active Expired
-
1970
- 1970-05-16 DE DE7018349U patent/DE7018349U/en not_active Expired
- 1970-07-06 US US52305A patent/US3670163A/en not_active Expired - Lifetime
- 1970-07-08 GB GB1297573D patent/GB1297573A/en not_active Expired
- 1970-07-16 JP JP45062518A patent/JPS511398B1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1573571A (en) * | 1924-03-28 | 1926-02-16 | Pohl Ernst | Table for X-ray transradiation |
US2103693A (en) * | 1934-02-12 | 1937-12-28 | Pohl Ernst | Radiographic couch |
US3500045A (en) * | 1965-09-21 | 1970-03-10 | Generay Gen Radiologica | Tiltable x-ray table supporting an x-ray tube and detector for displacement and rotation in two directions relative to the table |
US3449569A (en) * | 1966-07-22 | 1969-06-10 | Jose L Garcia Oller | Radiological apparatus wherein the x-ray source is mounted for rotational and straight-line movement |
Cited By (39)
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US4639941A (en) * | 1968-08-23 | 1987-01-27 | Emi Limited | Radiography |
US3852611A (en) * | 1972-05-05 | 1974-12-03 | Radiologie Cie Gle | Radiodiagnostic apparatus including a pivotable x-ray table |
US3833813A (en) * | 1972-09-25 | 1974-09-03 | Philips Corp | Device for examining a patient, in particular by means of x-rays |
US3991317A (en) * | 1973-07-05 | 1976-11-09 | Siemens Aktiengesellschaft | X-ray examining apparatus |
US3952201A (en) * | 1973-07-21 | 1976-04-20 | Emi Limited | Radiography |
US3973128A (en) * | 1973-08-18 | 1976-08-03 | Emi Limited | Tomography |
US3934140A (en) * | 1973-10-12 | 1976-01-20 | Establissements Dutertre | X-ray diagnostic apparatus in particular for examining the injured |
US3908126A (en) * | 1974-01-02 | 1975-09-23 | Pennwalt Corp S S White Dental | X-ray apparatus for providing panoramic radiographic projections |
US3965357A (en) * | 1974-03-01 | 1976-06-22 | Emi Patents Limited | Apparatus for examining a body by means of penetrating radiation |
US4769828A (en) * | 1975-02-21 | 1988-09-06 | Emi Limited | Radiography |
US4209706A (en) * | 1976-11-26 | 1980-06-24 | Varian Associates, Inc. | Fluoroscopic apparatus mounting fixture |
EP0011407A1 (en) * | 1978-10-31 | 1980-05-28 | Pfizer Inc. | X-ray examination apparatus, particularly for X-ray photographs of the head |
US4646335A (en) * | 1984-01-02 | 1987-02-24 | Orion-Yhtyma | Apparatus for X-ray photography of the area of the dentition and of the jaws |
US4649560A (en) * | 1984-01-30 | 1987-03-10 | John K. Grady | Digital X-ray stand |
US4541108A (en) * | 1984-01-30 | 1985-09-10 | John K. Grady | X-Ray apparatus with tilting table |
US4683581A (en) * | 1984-02-01 | 1987-07-28 | Orion-Yhtyma | Apparatus for X-ray photography of the area of the dentition and of the jaws |
US4705955A (en) * | 1985-04-02 | 1987-11-10 | Curt Mileikowsky | Radiation therapy for cancer patients |
US4987585A (en) * | 1989-04-04 | 1991-01-22 | General Electric Company | X-ray positioner for multi-axis profiling |
WO1991007131A1 (en) * | 1989-11-13 | 1991-05-30 | Marquardt Mark R | Examination unit including positionable patient chair, examination device and support system |
US5042487A (en) * | 1989-11-13 | 1991-08-27 | Marquardt Mark R | Examination unit including positionable patient chair, examination device and support system |
US5052036A (en) * | 1990-04-02 | 1991-09-24 | Grady John K | X-ray stand with laterally inclined rotation axis |
US5410584A (en) * | 1992-04-29 | 1995-04-25 | Siemens Aktiengesellschaft | Apparatus for supporting a radiation transmitter |
US5287546A (en) * | 1992-09-14 | 1994-02-15 | Lunar Corporation | Patient positioning apparatus for bone scanning |
US6259762B1 (en) * | 1997-08-20 | 2001-07-10 | Deutsches Krebsforschungszentrum Stiftung Des Offentlichen Rechts | Radiation system with several radiation sources directed to a control point |
US6375355B1 (en) | 1999-03-10 | 2002-04-23 | Joseph Fortin | Moveable table |
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US20050238141A1 (en) * | 2004-04-21 | 2005-10-27 | Canon Kabushiki Kaisha | X-ray imaging apparatus and its control method |
KR100782409B1 (en) | 2004-04-21 | 2007-12-05 | 캐논 가부시끼가이샤 | X-ray imaging apparatus and its control method |
US7315606B2 (en) | 2004-04-21 | 2008-01-01 | Canon Kabushiki Kaisha | X-ray imaging apparatus and its control method |
EP1588664A1 (en) * | 2004-04-21 | 2005-10-26 | Canon Kabushiki Kaisha | X-Ray imaging apparatus and its control method |
US8841619B2 (en) * | 2012-06-01 | 2014-09-23 | General Electric Company | Methods and systems for positioning detectors for nuclear medicine imaging |
US20130320234A1 (en) * | 2012-06-01 | 2013-12-05 | General Electric Company | Methods and systems for positioning detectors for nuclear medicine imaging |
CN103462631A (en) * | 2013-09-22 | 2013-12-25 | 江苏美伦影像系统有限公司 | Multi-angle cone beam CT (Computed Tomography) imager |
CN103462631B (en) * | 2013-09-22 | 2015-10-21 | 江苏美伦影像系统有限公司 | Multi-angle cone-beam CT imaging instrument |
US11826582B2 (en) | 2017-05-05 | 2023-11-28 | Zap Surgical Systems, Inc. | Revolving radiation collimator |
US10499861B2 (en) | 2017-09-06 | 2019-12-10 | Zap Surgical Systems, Inc. | Self-shielded, integrated-control radiosurgery system |
US11844637B2 (en) | 2017-09-06 | 2023-12-19 | Zap Surgical Systems, Inc. | Therapeutic radiation beam detector for radiation treatment systems |
CN107456242A (en) * | 2017-09-22 | 2017-12-12 | 江苏美伦影像系统有限公司 | A kind of oral cavity tomography system based on curve panoramic scanning |
US11684446B2 (en) | 2019-02-27 | 2023-06-27 | Zap Surgical Systems, Inc. | Device for radiosurgical treatment of uterine fibroids |
Also Published As
Publication number | Publication date |
---|---|
DE7018349U (en) | 1972-07-20 |
FR2054492B1 (en) | 1974-06-14 |
GB1297573A (en) | 1972-11-22 |
FR2054492A1 (en) | 1971-04-23 |
JPS511398B1 (en) | 1976-01-16 |
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