Matches 451 - 500 out of 514 < 1 2 3 4 5 6 7 8 9 10 11 >
Match Document Document Title
5019713 Radiation therapy device with moveable aperture plate  
In a radiation therapy device isodose curves are adjusted both by a movable plate that is controlled during the irradiation and by a non-movable filter body in the radiation path. The filter body...
5014290 Method and apparatus for generating radiation blockers  
A simulation/generation/verification system for blocker patterns and blockers for use in radiation therapy comprises a fluoroscopic simulator apparatus, a computer system for acquisition and...
5012357 CT compatible intracavity radiation applicator with afterloading shielding  
A system for providing therapeutic radiation to a predetermined tissue region within a body cavity of a living being utilizes an applicator arrangement which may, in a specific embodiment, comprise...
5008907 Therapy x-ray scanner  
A CT therapy scanner moves a therapy x-ray source in an arc about a subject. A tumor or lesion is isocentered by the x-ray beam which is a pencil beam. A fan beam, from which the pencil beam is...
4998268 Apparatus and method for therapeutically irradiating a chosen area using a diagnostic computer tomography scanner  
In combination with a diagnostic CT scanner using radiant energy for imaging, an apparatus for therapeutically irradiating a target, comprising a mask that partially attenuates the radiant energy...
4995068 Radiation therapy imaging apparatus  
A radiation therapy imager provides images of a patient while being treated while on a radiation therapy machine for purposes of verification and monitoring of position and alignment, and for...
4943990 Therapy simulator  
This therapy simulator contains a radiation source (1) in a radiator head. An image acquisition unit (7) is connected to the radiator head and can be swivelled jointly with the latter about a...
4890313 Bi-directional x-ray imager  
An x-ray imager system of the type that indicates alignment of patient treatment field with x-ray field, using fluorescence screen and imaging sensor, has a cabinet that permits selection of two...
4868843 Multileaf collimator and compensator for radiotherapy machines  
In a radiation therapy machine it is desirable to produce irregular radiation field shapes in order to shield critical organs not invaded by the tumor. A system is provided using a multileaf...
4827493 Radiographic source  
A radiography source, preferably a cobalt-60 source constructed of a plurality of radioactive cobalt-60 pellets contained in an open capsule preferably constructed of titanium. The pellets are...
4827491 Radiosurgical collimator knife  
Apparatus for treatment by radiation of an intracranial portion disposed at a predetermined region, comprises a linear accelerator for supplying a source of energetic electrons, and a collimator...
4815448 Mossbauer cancer therapy  
Frequency selective radiation therapy providing selective tissue damage or necrosis by irradiating a component element of the target tissue at the corresponding Mossbauer absorption frequency. The...
4798961 Device for radiation field shielding in radiotherapy  
A radiation field-shielding device is mounted on a collimator (4) in an radiotherapy apparatus. The collimator (4) is rotatable in a per se known manner about its axis and in its entirety about the...
4780898 Arrangement in a gamma unit  
An arrangement in a gamma unit, comprising a large number of radiation sources (9) mounted within a radiation shield (2) and having beam channels (6, 19) directed radially from said radiation...
4726046 X-ray and electron radiotherapy clinical treatment machine  
A radiotherapy machine includes a microwave powered accelerator to produce an energetic beam of charged particles, bending and focussing magnets to parallel scan the beam in a plane and collimators...
4647456 Methods of increasing tolerance to radiotherapy and chemotherapy using propioni bacteria  
It has been found that compositions derived from Propioni bacteria, especially P. granulosum, P. avidium, and P. acnes are useful in increasing tolerance of individuals to radiotherapy and...
4472637 Composite shielding means and mounting means therefor  
A shielding means for an X-ray machine or the like comprised of a base plate which removably receives shielding members masking out selective portions of the base plate to control the passage of...
4365341 On-line treatment monitoring for radiation teletherapy  
A method and apparatus are provided for the on-line treatment monitoring of patients during radiation teletherapy. A patient is positioned in the irradiation portal of the radiation teletherapy...
4327293 Electron accelerator and target with collimator  
The invention relates to a radio therapy apparatus comprising an electron accelerator having a target and a collimator for limiting the X-ray cone. In the use of such electron accelerators, the...
4256966 Radiotherapy apparatus with two light beam localizers  
The radiation emitting apparatus contains a radiation source which projects a beam of radiation along a central axis onto a surface to be irradiated. There are provided a first and a second...
4233519 Radiation therapy apparatus having retractable beam stopper  
A translation mechanism for linearly moving a beam stopper in radiation therapy apparatus includes first and second arms pivotally mounted to a support and third and fourth arms pivotally mounted...
4230129 Radio frequency, electromagnetic radiation device having orbital mount  
A method and apparatus for treating tumors, both benign and malignant, involving radio frequency heating of the tumor within the body of the animal host, the method comprising precisely locating...
4223227 Laser alignment fixture  
In conjunction with a linear accelerator or a cobalt-60 teletherapy machine disposed in a room having a head mounted for rotation about a horizontal epicenter axis, and wherein the head is adapted...
4172979 Method and apparatus for automatically providing radiation therapy treatment conforming to a desired volume of tissue  
A device implemented method for conformation radiotherapy of tumors or the like involves sequentially interposing a plurality of separate, individual radiation beam shaping shields between a tumor...
4157475 Electron accelerator comprising a target exposed to the electron beam  
In order to supply a dose rate which is as constant as possible over the cross section of the x-ray cone for radiation therapy, especially at lesser tissue depths (e.g. 3 cm), the surfaces of the...
4132900 Optical pointer for radiographic apparatus  
A therapeutic radiographic apparatus includes a source of a pencil-like beam of penetrating radiation which requires to be positioned relative to a patient's body so that the radiation passes, at...
4123660 Optical alignment apparatus for teletherapy machine or the like  
In conjunction with a linear accelerator or a cobalt-60 teletherapy machine disposed in a room having a head mounted for rotation about a horizontal epicenter axis, and wherein the head is adapted...
4118631 Radiographic apparatus  
In therapeutic radiographic apparatus it is desirable to maintain the penetrating radiation in passing through tissue to be irradiated, rather than surrounding healthy tissue, despite movements of...
4034222 System for measuring radiation doses in radiotherapy apparatus  
A system for measuring radiation doses in radiotherapy comprises two identical metering networks energized in parallel from a common radiation source, each network including an integrating...
3991310 Biplane radiographic localization of target center for radiotherapy  
The center of tissue within a patient to be subjected to radiation treatment is located in terms of coordinates with respect to a predetermined origin defined by three mutually orthogonal reference...
3987281 Method of radiation therapy treatment planning  
A technique of radiation therapy treatment planning designed to allow the assignment of dosage limits directly to chosen points in the computer-displayed cross-section of the patient. These dosage...
3969629 X-ray treatment machine having means for reducing secondary electron skin dose  
In an x-ray treatment machine a charged particle accelerator or cobalt source is provided for producing a field of high energy x-ray radiation for application to a body, for treatment thereof. The...
3955089 Automatic steering of a high velocity beam of charged particles  
In a high energy X-ray therapy machine, an accelerator accelerates a beam of electrons to energies of several MEV. The electron beam is directed, generally via a beam deflector, onto an X-ray...
3950651 Method and an arrangement for defining a radiation treatment field  
A method of defining the radiation beam for medical therapy in which the beam is shaped by an aperture in an easily formable, radiation absorbing member. The member is formed by compressing a...
3944836 Auxiliary collimating device for obtaining irradiation fields of any shape for high energy radiotherapy apparatus  
An auxiliary collimator is added to the main collimator of a radiotherapy apparatus and comprises a master-container filled with mercury and a localising container containing a block of non...
3906233 System and method for administering radiation  
A system and method for metering the quantity of radiation administered a subject by a source of radiation movable along a path relative to the subject. The system cumulatively counts the amount of...
3882314 Device for X-ray treatment  
A device for X-ray treatment comprising an electronic accelerator, an anticathode exposed to the accelerated electrons for producing X-rays, an adjustable collimator for the X-rays, and at least...
3866050 REMOTELY CONTROLLED BRACHYTHERAPY UNIT  
A method and apparatus is provided whereby a point or elongate radioactive source is introduced into the body of a patient and a source is subsequently oscillated whereby the spacial distribution...
3861807 POSITION LOCATING AND MAINTAINING METHOD AND MEANS  
A locating technique employs a beam of concentrically patterned, varying intensity light to position one object, for example a hospital patient, with respect to a second object, such as a radiation...
3805081 COLLIMATOR FOR HIGH ENERGY RADIATION  
A plurality of cells are disposed in an aperture insert which is receivable in an aperture of a collimator for high energy radiation. The cells can be selectively filled with radiation shielding...
3794840 METHOD AND APPARATUS FOR DIRECTING A RADIATION BEAM TOWARD A TUMOR OR THE LIKE  
Method and apparatus for accurately directing a therapeutic radiation beam to a tumor or the like within a human body, including the implantation at the tumor of a source emitting radioactive rays...
3777124 COMPUTER ASSISTED RADIATION THERAPY MACHINE  
A computer assisted radiation therapy machine is disclosed. The machine includes a rotatable gantry having a radiation source portion and a beam stopping portion. The gantry is rotatable about a...
3627250 OVERHEAD ISOCENTRIC COUCH FOR THERAPY EQUIPMENT  
There is disclosed a patient positioning apparatus, particularly for use with therapy wherein an associated couch is suspended from above rather than forming an integral part of therapy equipment....
3582650 SUPPORT STRUCTURE FOR ELECTRON ACCELERATOR WITH DEFLECTING MEANS AND TARGET AND COOPERATING PATIENT SUPPORT  
Improved linear accelerator apparatus for directing ionizing radiation on an object is realized by utilization of a horizontal axis of rotation about which the linear accelerator axis rotates while...
3487559 LIGHT ANALOG RADIOTHERAPY PLANNING METHOD AND APPARATUS  
3466439 RADIATION TREATMENT APPARATUS WITH TRANSVERSELY GAPPED TABLE  
3349242 Apparatus for radiation therapy of diseased tissues with minimum exposure to healthy tissues  
3322950 Linear accelerator radiotherapy device and associated beam defining structure  
3283147 Energy-projecting and scanning apparatus  
3090868 Device for a radiation plant comprising ray generator and treatment bed  
Matches 451 - 500 out of 514 < 1 2 3 4 5 6 7 8 9 10 11 >