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Class 378/150 - Variable


Subclass of Class 378 - X-ray or gamma ray systems or devices
Definition: Subject matter wherein the shape, size, axial direction,
No. of applications: 54
Last issue date: 01/19/2012


1    
Application No.Application TitleIssue Date
20120012763Method and Apparatus Pertaining to Use of Jaws During Radiation Treatment
These various embodiments are employed in conjunction with the use of both a multi-leaf collimator and jaws that are interposed between a source of radiation and a treatment target while sourcing radiation from the source of radiation towards the treatment target. Gener...
01/19/2012
20110293069MEDICAL VIEWING SYSTEM FOR DISPLAYING AN X-RAY IMAGE
A medical viewing system comprises an X-ray source, a collimator for limiting the X-ray radiation output of the X-ray source and a flat X-ray detector, wherein the collimator is adjustable such that the subsequent X-ray images acquired by the X-ray detector comprise a r...
12/01/2011
20110200170Method and System for Treating Moving Target
A method and system for providing intensity modulated radiation therapy to a moving target is disclosed. According to a preferred embodiment of the invention, a treatment plan for providing radiotherapy using a multi-leaf collimator (“MLC”) comprises a plurality of ...
08/18/2011
20110188624TOMOSYNTHESIS WITH SHIFTING FOCAL SPOT AND OSCILLATING COLLIMATOR BLADES
In a tomosynthesis system a static focal spot is moved in a direction opposite to and generally synchronized with the directional movement of an x-ray source and X-ray collimator blades are moved during each exposure in synchronization with the shifting of the static fo...
08/04/2011
20110182492ANGIOGRAPHIC IMAGE ACQUISITION SYSTEM AND METHOD WITH AUTOMATIC SHUTTER ADAPTATION FOR YIELDING A REDUCED FIELD OF VIEW COVERING A SEGMENTED TARGET STRUCTURE OR LESION FOR DECREASING X-RADIATION DOSE IN MINIMALLY INVASIVE X-RAY-GUIDED INTERVENTIONS
The present invention refers to an angiographic image acquisition system and method which can beneficially be used in the scope of minimally invasive image-guided interventions. In particular, the present invention relates to a system and method for graphically visualiz...
07/28/2011
20110182404Collimator with an adjustable focal length
The invention relates to a collimator with adjustable focal length, especially for use in X-ray testing devices whose operating principle is based on diffraction phenomena in an object. Fixed focal length collimators used in such X-ray testing devices have to be displac...
07/28/2011
20100296631FILTERING OF A SOURCE OF PULSED RADIATION
A source of pulsed radiation is coupled to a positionable filter. The positionable filter includes an element that produces an indication of a position of the filter. The source is configured to receive the indication of the position of the filter, and to regulate emiss...
11/25/2010
20100278310MULTI-LEAF COLLIMATOR WITH ROTATORY ELECTROMECHANICAL MOTOR AND OPERATING METHOD
Multi-leaf collimators have a guide frame (1) with a plurality of metal plates (3) arranged in a displaceable fashion, by which each individual metal plate can be displaced by an electric motor (M), with the electric motor (M) being a rotatory electromecha...
11/04/2010
20100274120SYNCHRONOUS INTERVENTIONAL SCANNER
When performing an interventional CT scan on a subject, radiation dose is limited by employing a dynamic collimator (142) that collimates X-rays emitted by an X-ray source (112). The X-ray source (112) and collimator (142) rotate around a VOI...
10/28/2010
20100246752DYNAMIC COLLIMATION IN CONE BEAM COMPUTED TOMOGRAPHY TO REDUCE PATIENT EXPOSURE
When performing a fly-by or helical CT scan of a subject, radiation dose is limited by positioning a dynamic collimator (142) between the subject and an X-ray source (112). The collimator moves axially with the X-ray source (112) along a volume of i...
09/30/2010
20100246764SOURCE GRATING FOR X-RAYS, IMAGING APPARATUS FOR X-RAY PHASE CONTRAST IMAGE AND X-RAY COMPUTED TOMOGRAPHY SYSTEM
A source grating for X-rays and the like which can enhance spatial coherence and is used for X-ray phase contrast imaging is provided. The source grating for X-rays is disposed between an X-ray source and a test object and is used for X-ray phase contrast imaging. The s...
09/30/2010
20100189218THREE DIMENSIONAL IMAGE PROCESSING APPARATUS AND X-RAY DIAGNOSIS APPARATUS
A three dimensional image processing apparatus includes a feature point designation unit which designates feature points on at least two selected images selected from a plurality of images in different radiographing directions, a three dimensional position calculation u...
07/29/2010
20100177873Apparatus and Method to Facilitate Dynamically Adjusting Radiation Intensity for Imaging Purposes
An x-ray-based radiation imaging apparatus (200) for use in imaging an object (201) can comprise a source of x-rays (202) having an output radiation intensity control input and a radiation intensity controller (207) operably coupled thereto. ...
07/15/2010
20100166150Collimation apparatus for radiotherapy
A radiotherapy apparatus comprises a means for producing a beam of radiation directed along a beam axis and having a width in first and second directions transverse to the beam axis, a multi-leaf collimator for selectively limiting the width of the beam in at least the ...
07/01/2010
20100116993RADIOGRAPHY MEASURING APPARATUS AND RADIOGRAPHY MEASURING METHOD
A neutron reactant layer (220) is directly coated inside an aluminum substrate (200) of an incident window (20). A first scintillator layer (201) is formed inside the neutron reactant layer 220, and a photoelectric conversion layer (
05/13/2010
20100119036Limiting An X-Ray Beam In Connection With Dental Imaging
The present invention relates to limiting an x-ray beam used in connection with dental extra oral imaging by a plate mechanism (1) arranged to be operated by a drive mechanism including an actuator (3) arranged to move at least one plate element (2, 3
05/13/2010
20100111261ADD-ON-X-RAY-COLLIMATOR FOR NON-SYMMETRICAL BEAM COLLIMATION
It is described a device (10) for non-symmetrical X-ray beam collimation of a X-ray tube (30), wherein the device comprises a housing (1), a X-ray absorbing plate (2) for collimating a x-ray asymmetrically, and a sleigh (3) for moving ...
05/06/2010
20100091937X-RAY BEAM MODIFYING DIAPHRAGM AND DIAPHRAGM DEVICE
A diaphragm and diaphragm device for the specific manipulation of x-ray radiation that emanates from an x-ray focus of a CT apparatus and serves for scanning an examination subject, wherein the x-ray focus and the diaphragm arranged relatively near to the focus can be r...
04/15/2010
20100091939CIRCULAR MULTI-BEAM X-RAY DEVICE
A multi-beam x-ray device has a multi-beam x-ray tube with an interior in the form of a circle. Focal spots of the x-ray radiation are arranged along the circle. An x-ray tube control unit controls the x-ray radiation emission such that an x-ray beam is emitted from eac...
04/15/2010
20100091938MULTI-BEAM X-RAY DEVICE
A multi-beam x-ray device has a multi-beam x-ray tube in the form of a polygon, wherein the focal spots of the x-ray radiation are arranged along the polygon sides. An x-ray tube control unit controls the x-ray radiation emission such that an x-ray beam is alternately e...
04/15/2010
20100061511Modulatable Radiation Collimator
The invention specifies a radiation collimator, in particular an x-ray collimator, which can be arranged between a radiation source outputting radiation and an object. The radiation collimator includes absorber channels arranged adjacent to one another which form a two-...
03/11/2010
20100054408Irradiation Device and Collimator
An irradiation device for radiation treatment and a collimator (1) are used to define a beam of high-energy rays (2) with beam limitation by means of an iris diaphragm (5) having adjusting elements (7), and a mechanism that is used to direct ...
03/04/2010
20100054420ADJUSTING DEVICE FOR BARRIER BLADE OF SCATTERED X-RAY
An adjusting device for a barrier blade includes a barrier blade for limiting scattered X-ray of a tube and a base plate for mounting the barrier blade. The adjusting device also includes a barrier blade support and a drive unit, wherein said barrier blade support inclu...
03/04/2010
20100046713LEAF SEQUENCING ALGORITHM FOR MOVING TARGETS
A method of providing intensity modulated radiation therapy to a moving target is disclosed. The target moves periodically along a trajectory that is projected onto a multi-leaf collimator (MLC) plane. The MLC plane is divided into thin slices parallel to the movement o...
02/25/2010
20100008472LAMELLA COLLIMATOR AND BEAM THERAPY APPLIANCE
A lamella collimator, in particular for a beam therapy appliance, is provided. The lamella collimator has a plurality of lamellae, which can be moved by a motor or motors in a movement direction in order to preset a countour of a beam path on an X-ray beam. Each lamella...
01/14/2010
20090304150SLIT-SLAT COLLIMATION
This invention is directed to a collimator and collimation techniques. Specifically, the invention is directed to a collimator and method for collimation wherein the collimator combines the resolution and sensitivity properties of pinhole Single Photon Emission Computed...
12/10/2009
20090285749Apparatus and Method for Functional Neurological Screening
A variable focus collimator device and method for functional neurological screening. The variable focus collimator uses sets of corresponding holes in two plates of gamma shielding material, arranged so that only gamma rays emitted from a defined focal region detected. ...
11/19/2009
20090220046COLLIMATOR DEVICE FOR RADIOTHERAPY AND RADIOTHERAPY APPARATUS USING THE SAME
Provided is a collimator device for radiotherapy including: a body including a first through unit and disposed on a path of high energy radiation which in use is irradiated toward a patient's treatment part; a frame including a through hole corresponding to the first th...
09/03/2009
20090213990X-ray apparatus
An investigative X-ray apparatus comprises a source of X-rays emitting a cone beam centred on a beam axis, a collimator to limit the extent of the beam, and a two-dimensional detector, the apparatus being mounted on a support which is rotatable about a rotation axis, th...
08/27/2009
20090207975Multi-leaf collimator
A multi-leaf collimator for use in a radiotherapeutic apparatus comprises a plurality of elongate narrow leaves arranged side-by side and supported in a frame, the frame having upper and lower formations for guiding each leaf into which extend ridges on the upper and lo...
08/20/2009
20090196401Machine vision system
A fluorescing marker is used in order to mark (for example) a leaf of a multi-leaf collimator and/or the reference points within the field of view. The markers are illuminated with light tuned to cause the markers to fluoresce at a wavelength different to that of the il...
08/06/2009
20090129552X-RAY OPTIC WITH VARYING FOCAL POINTS
An x-ray optical device delivers an x-ray beam with variable convergence. The convergence or the divergence of the x-ray beams varies over different parts of the reflector. The device may include an adjustable aperture to further select the convergence or divergence. Th...
05/21/2009
20090074147APPARATUS FOR SHIELDING X-RAYS AND X-RAY DEVICE INCORPORATING SAID APPARATUS
An X-ray shielding apparatus (40) and an X-ray device incorporating such an apparatus are described. The apparatus (40) comprises a stationary member (94) having an aperture and one or more shielding members (96, 98) movable in relation to th...
03/19/2009
20090041188METHOD AND SYSTEM FOR FOUR DIMENSIONAL INTENSITY MODULATED RADIATION THERAPY FOR MOTION COMPENSATED TREATMENTS
A deliverable four dimensional (4D) intensity modulated radiation therapy (IMRT) planning method is disclosed, for delivery using a linear accelerator with a dynamic multi-leaf collimator (DMLC). A 4D computed tomography (CT) scan is used for segmenting tumor anatomy on...
02/12/2009
20090010395ADJUSTABLE APERTURE COLLIMATOR
A collimator including an inner border whose inner perimeter defines an aperture, an outer border positioned outwards of the inner border, an enclosure being defined and bounded between the inner and outer borders, the enclosure being sufficiently filled with a radiopaq...
01/08/2009
20080285718X-RAY DIAPHRAGM
A diaphragm system for an x-ray apparatus for scanning an object is provided. The diaphragm system includes a diaphragm support arranged within a radiation path of an x-ray beam. The diaphragm support includes at least two different individual diaphragms. The at least t...
11/20/2008
20080260103X-RAY IMAGING APPARATUS
When a tabletop is rolling, an aperture specifying unit calculates an aperture of diaphragm blades such that a radiation field is to be R′ based on a rolling angle, where R′ is a radiation field having the same radiation area of X-rays after tabletop rolling as a ra...
10/23/2008
20080247510ORTHOVOLTAGE RADIOSURGERY
A radiosurgery system is described that is configured to deliver a therapeutic dose of radiation to a target structure in a patient. In some embodiments, inflammatory ocular disorders are treated, specifically macular degeneration. In some embodiments, other disorders o...
10/09/2008
20080237482Variable collimation in radiation detection
Apparatus for detecting radiation emitted from a number of volume elements of a body. The apparatus includes a first plurality of detector elements, each detector element being configured to output signals indicative of an intensity of radiation that is incident thereon...
10/02/2008
20080084968Configuration of a Medical Radiotherapeutic Instrument
A configuration of a medical radiotherapeutic instrument comprising a body of ray source, a switch and an end collimation body, a pre-collimation hole and a ray source cavity for placing ray source are defined on the body of ray source; the switch is a plentiful of pill...
04/10/2008
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