Assignee: Siemens Medical Laboratories, Inc.

Location: WalnutCreek, CA
No. of patents: 30

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Number	Title	Issue Date
5010562	Apparatus and method for inhibiting the generation of excessive radiation The generation of excessive electron radiation or X-ray radiation is prevented in an apparatus which comprises an accelerator means for generating and accelerating electrons. These electrons form an electron beam which has a predetermined low intensity le...	04/23/1991
5006759	Two piece apparatus for accelerating and transporting a charged particle beam Apparatus for accelerating and transporting a charged particle beam. The apparatus has a housing which encases an accelerating structure as well as a magnet system. The accelerating structure accelerates an injected charged particle beam within a first ev...	04/09/1991
4845371	Apparatus for generating and transporting a charged particle beam An apparatus for generating and transporting a charged particle beam. The apparatus has a source which generates the charged particle beam at two current levels, and a magnet system for bending the beam. Particles of different energies are bent along diff...	07/04/1989
4803368	Assembly and method for monitoring the lateral position of a beam of ionizing radiation A transmission ion chamber assembly for detecting the lateral displacement of an ionizing beam has two ion chambers located one behind the other along the beam axis. Each chamber contains two electrode plates and a spacer which separates and electrically ...	02/07/1989
4800891	Doppler velocity processing method and apparatus Method and apparatus for developing an estimation of the velocity of a moving target, comprising, transmitting groups of pulse signals towards the target, receiving groups of echo signals caused by reflections of the transmitted groups of pulse signals fr...	01/31/1989
4767930	Method and apparatus for enlarging a charged particle beam A method and an apparatus for irradiating a relatively large area with a charged particle beam. In the method, a pencil-like beam is generated and spread along a fan axis perpendicular to the beam axis. The fan axis is rotated around the beam axis so that...	08/30/1988
4737647	Target assembly for an electron linear accelerator A target assembly for an electron linear accelerator (LINAC), comprising a target for converting electron beams of different energies into x-ray beams. The target has a variable thickness which can be set to a predetermined value by adjustment means. In a...	04/12/1988
4642572	Filter adjustment system for use in electronic accelerators and the like A filter adjustment system for use in electron accelerator and the like includes a plug-shaped ring which engages the filter and is tiltably plugged into an immobile element....	02/10/1987
4638814	Electron accelerator unit for electron beam therapy An electron accelerator unit comprises a source of an electron beam and means for finally directing at least a portion of the beam to a therapy site. The directing means is mechanically independent of, and electrically isolated from, the source of the ele...	01/27/1987
4627089	Device for positioning a flattening filter in the center of an X-ray radiation A device for positioning a flattening filter in the center of an x-ray radiation, which comprises a drive means for driving the flattening filter between positions outside and inside the x-ray radiation; and a stop means for restricting the inside movemen...	12/02/1986
4612937	Ultrasound diagnostic apparatus An ultrasound diagnostic apparatus for displaying two-dimensional blood flow information superimposed over anatomical information. A transducer generates a series of ultrasound bursts which are directed towards the area of the body where blood flow and an...	09/23/1986
4575064	Patient treatment table A patient treatment table has a base and a table plate upon which a patient may be positioned. A spine having two bars supports at least one part of the table. The bars are so mounted that they may be shifted towards and away from each other beneath the t...	03/11/1986
4514633	Ionization chamber for measuring the profile of a radiation field of electron or X-ray radiation An ionization chamber for measuring the profile of a radiation field is provided which comprises a first electrode and a second electrode arranged parallel to said first electrode, both electrodes forming a gap therebetween. A shield made of a material op...	04/30/1985
4484078	Medical apparatus The apparatus comprises a first apparatus part and a second apparatus part which is disposed on and extends outward from the first part. The second part is movable with respect to the first part between an attracted position, in which it is extended to a ...	11/20/1984
4451945	Medical couch The medical couch contains a lower frame, an upper frame for carrying a table top, and a link mechanism interconnecting both frames. The link mechanism includes pivotally interconnected support arms which are operated in a scissor action to lift and lower...	06/05/1984
4449262	Medical couch incorporating a lifting mechanism The medical couch contains a lower frame, an upper frame for carrying a patient table top, and a link mechanism interconnecting both frames. The link mechanism includes two pairs of pivotally interconnected support arms which are operated in a scissors ac...	05/22/1984
4427890	Dose monitor chamber for electron or X-ray radiation The chamber contains a first and a second measuring electrode and a third electrode. The first measuring electrode is essentially a first flat ring portion. The second measuring electrode comprises an inner circular area to the periphery of which a second...	01/24/1984
4359642	Collimator assembly for an electron accelerator The collimator assembly comprises a collimator shielding block for blocking undesired X-rays and an insert piece inserted into the shielding block. The insert piece which is made of a material of high atomic number, has an inner conical surface which defi...	11/16/1982
4347440	Filter arrangement for an x-ray apparatus The filter arrangement for an X-ray apparatus contains an X-ray source for emitting a diverging beam of X-rays and a filter plate positioned in the beam of X-rays. The beam is symmetrical with respect to a center beam axis. The filter plate which serves f...	08/31/1982
4347547	Energy interlock system for a linear accelerator The energy interlock system is designed for a linear accelerator having no electron beam bending system. The accelerator emits electron pulses which are directed to a target for generation of X-ray pulses. The interlock system contains an ionization chamb...	08/31/1982
4343997	Collimator assembly for an electron accelerator The collimator assembly comprises a collimator shielding block for blocking undesired X-rays and an insert piece inserted into the shielding block. The insert piece, which is made of a material of high atomic number, has an inner conical surface which def...	08/10/1982
4342060	Energy interlock system for a linear accelerator The energy interlock system contains a measuring device, a discriminator and a switch. The measuring device determines the level of the particle beam pulses which are emitted by the accelerator. For this purpose it contains a target which is exposed to th...	07/27/1982
4329654	Particle accelerator The particle accelerator contains an accelerator guide for accelerating particles, an injector for injecting particles into the accelerator guide, a pulsed source of high frequency power which has power adjusting means, a device for introducing the high f...	05/11/1982
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 radiation load of the patient is increased in an undesirable ...	04/27/1982
4324980	Electron exit window assembly for a linear accelerator The electron exit window assembly contains a metal cover plate, a titanium insert piece and a titanium exit window. The cover plate covers the interior of the last cavity of the accelerator. It contains an insert opening into which is inserted the insert ...	04/13/1982
4323780	Target assembly for a linear accelerator The target assembly contains a metal plate which has two end faces, a recess in one of these end faces, a target for generating X-rays when hit by high-energy electrons, and a cooling channel in the metal plate for directing a cooling medium therethrough....	04/06/1982
4314158	Electron applicator for a linear accelerator The electron applicator incorporates a stationary support tube and an insert tube. The support tube and the insert tube each have a first end portion and a second end portion. The first end portion of the insert tube slideably extends into the second end ...	02/02/1982
4300055	Radiation filter The invention relates to an electron accelerator including an evacuated acceleration tube, a target exposed to the electron beam, an electron absorber following the target in beam direction, a collimator and a compensation body arranged therein centered o...	11/10/1981
4293772	Wobbling device for a charged particle accelerator A charged particle accelerator has an accelerator chamber in the interior of which a narrow beam of charged particles is accelerated. The particle beam is directed to a discharge window for discharging the particles therethrough. A device is provided for ...	10/06/1981
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 light-beam localizer for emitting a first and a second plane ligh...	03/17/1981

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Assignee: Siemens Medical Laboratories, Inc.