Mobile Or Portable Patents (Class 378/102)
  • Publication number: 20080123814
    Abstract: Systems, methods and apparatus are provided through which in some embodiments, a mobile imaging system includes one or more fuel cells. Some embodiments include further electric power sources, such as battery and/or an external AC power source.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 29, 2008
    Applicant: General Electric Company, a New York Corporation
    Inventors: Steven E. Curtis, Richard Larry Anderton
  • Publication number: 20080112537
    Abstract: Apparatus includes a fixed computed tomography (CT) system including a storage device configured to share power delivery with an input power line in order to reduce peak load requirements of the input power line.
    Type: Application
    Filed: November 14, 2006
    Publication date: May 15, 2008
    Inventors: Jason Stuart Katcha, Jonathan Richard Schmidt
  • Patent number: 7322745
    Abstract: The inspection methods and systems of the present invention are mobile, rapidly deployable, and capable of scanning a wide variety of receptacles cost-effectively and accurately on uneven surfaces. The present invention is directed toward a portable inspection system for generating an image representation of target objects using a radiation source, comprising a mobile vehicle, a detector array physically attached to a movable boom having a proximal end and a distal end. The proximal end is physically attached to the vehicle. The invention also comprises at least one source of radiation. The radiation source is fixedly attached to the distal end of the boom, wherein the image is generated by introducing the target objects in between the radiation source and the detector array, exposing the objects to radiation, and detecting radiation.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: January 29, 2008
    Assignee: Rapiscan Security Products, Inc.
    Inventors: Neeraj Agrawal, Andreas F. Kotowaki
  • Patent number: 7252182
    Abstract: A vibration isolation structure for an image-forming apparatus includes an exposure unit disposed in a vehicle compartment, for applying radiation to a subject and capturing a radiation image of the subject; a support post fixedly mounted in the compartment of the vehicle; a holder for holding the exposure unit; and a vibration-suppressing mechanism for connecting the support post and the holder to each other to suppress vibrations transmitted from the vehicle through the support post to the holder. The vibration-suppressing mechanism may include a resilient member disposed between the support post and the holder, holding the holder swingably with respect to the support post. The resilient member may include a helical spring or a plurality of resilient components. The resilient member may have characteristics established depending on the weight and position of the center of gravity of the holder or exposure unit, or conditions in which the vehicle is driven.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: August 7, 2007
    Assignee: Fujifilm Corporation
    Inventor: Yuzuru Ohtsuka
  • Patent number: 7233645
    Abstract: A control system for an X-ray source includes a sensor interface for receiving one or more sensor signals representative of operation of the X-ray source; a programmable controller operative in response to the one or more sensor signals and a sequence of control instructions for generating one or more control signals for controlling the X-ray source; and a control interface for supplying the one or more control signals to the X-ray source, either directly or indirectly.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: June 19, 2007
    Assignee: INPHO, Inc.
    Inventor: Francis Michael Feda
  • Patent number: 7224769
    Abstract: Portable x-ray devices and methods for using such devices are described. The devices have an x-ray tube powered by an integrated power system. The x-ray tube is shielded with a low-density insulating material containing a high-Z substance. The devices can also have an integrated display component. With these components, the size and weight of the x-ray devices can be reduced and the portability of the devices enhanced. The x-ray devices also have an x-ray detecting means that is not structurally attached to the device and therefore is free standing. Consequently, the x-ray devices can also be used as a digital x-ray camera. The portable x-ray devices are especially useful for applications where portability is an important feature such as in field work, remote operations, and mobile operations such as nursing homes, home healthcare, or teaching classrooms.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: May 29, 2007
    Assignee: Aribex, Inc.
    Inventor: D. Clark Turner
  • Patent number: 7110505
    Abstract: The present invention discloses an X-ray source comprising an X-ray source including a high-voltage applying part for generating an X-ray projecting from a bulb part; a power supply including an insulating block molding therein a voltage generating part for supplying a voltage to the high-voltage applying part; and a metallic tubular member accommodating the bulb part and securing the X-ray tube. The metallic tubular member is secured to the outside of the insulating block. The metallic tubular member encapsulates therein an insulating liquid material for the bulb part to be dipped therein.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: September 19, 2006
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kazutaka Suzuki, Michihiro Ito, Takatoshi Yoshiyama, Hiroki Kawakami, Tutomu Inazuru
  • Patent number: 7031433
    Abstract: The present invention discloses an X-ray source comprising an X-ray source including a high-voltage applying part for generating an X-ray projecting from a bulb part; a power supply including an insulating block molding therein a voltage generating part for supplying a voltage to the high-voltage applying part; and a metallic tubular member accommodating the bulb part and securing the X-ray tube. The metallic tubular member is secured to the outside of the insulating block. The metallic tubular member encapsulates therein an insulating liquid material for the bulb part to be dipped therein.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: April 18, 2006
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kazutaka Suzuki, Michihiro Ito, Takatoshi Yoshiyama, Hiroki Kawakami, Tutomu Inazuru
  • Patent number: 7020238
    Abstract: The measurement head (101) of an X-ray fluorescence analyzer device is protected against heat from a hot target by using an adapter (201). It comprises a sheet of material having low thermal conductivity and has a three-dimensional shape that follows the form of a front part of the measurement head (101). Said sheet of material is attached to said measurement head (101) and has a central part (401) which defines an opening (202) coincident with a radiation window (109) in said measurement head (101). Said attachment means (204, 205, 301, 302, 311, 312) are located at a part of said sheet of material that is distant from said central part (401).
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: March 28, 2006
    Assignee: Oxford Instruments Analytical Oy
    Inventors: Esko Juhani Kantonen, Janne Adolf Petteri Kesälä, Erkki Tapani Puusaari, Heikki Johannes Sipilä
  • Patent number: 7016467
    Abstract: A mobile x-ray apparatus for generating a digital x-ray image and transmitting it to a remote site, includes: (a) a first computer; (b) a flat panel detector in communication with the first computer; and (c) an x-ray cart assembly removably supporting the first computer, which includes a cart with a battery charger and an x-ray machine in communication with the flat panel detector; wherein the mobile x-ray apparatus includes an x-ray tube extendible from the cart, and a mechanism for framing a target body area of a patient. Also included herein is a method of generating a digital x-ray image and forwarding it to a remote site using the mobile x-ray apparatus.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: March 21, 2006
    Inventor: Jack Jerome Brooks
  • Patent number: 6999558
    Abstract: In a radiographic method using a mobile radiographic apparatus including an image generating unit which includes photoelectric conversion elements and generates radiographic image data of an object, key information for selecting radiographic request information is transmitted to an external information system having the radiographic request information. The radiographic request information transmitted from the information system is received. The operation of the image generating unit is controlled based on the received radiographic request information.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: February 14, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventor: Keiji Okoda
  • Patent number: 6925150
    Abstract: A method and apparatus for providing a miniaturized, flexible high voltage up-converter. Aspects of the invention are particularly useful in providing an apparatus comprising a plurality of up-converting modules while also allowing the apparatus to maintain a desired degree of flexibility. However, certain aspects of the invention may be equally applicable in other scenarios as well.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: August 2, 2005
    Assignee: Cabot Microelectronics Corporation
    Inventor: Heinz H. Busta
  • Patent number: 6816573
    Abstract: The voltage applied to a first grid electrode 71 of an X-ray tube 11 by a grid voltage control section 110 is controlled with reference to a predetermined negative voltage from a negative voltage generating section 112 when an object 5 to be inspected does not exist in an imaging area (irradiation area of an X-ray from an X-ray source 1) so that the pulse outputted from a pulse generator 105 is in its OFF state, and is controlled with reference to a reference positive voltage from a reference voltage generating section 115 when the object 5 to be inspected exists in the imaging area in the X-ray image intensifier 2 (irradiation area of the X-ray from the X-ray source 1) so that the pulse outputted from the pulse generator 105 is in its ON state, whereby both of the cutoff voltage and grid operating voltage are applied in a stable state.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: November 9, 2004
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Masayuki Hirano, Hiroki Kawakami
  • Publication number: 20040146142
    Abstract: A mobile X-ray apparatus and method for performing X-ray imaging is capable of speeding up the working procedure and, thus, the imaging of the patient. Information provided by a digital sensor for X-ray radiation is provided in a wireless manner directly to a hospital information system or to a data processing device having a wireless connection to the hospital information system.
    Type: Application
    Filed: January 29, 2003
    Publication date: July 29, 2004
    Inventor: Miikka Maijala
  • Publication number: 20040120460
    Abstract: A portable device for recording X-ray images. The device comprising an X-ray image capture panel, a housing member connected to and surrounding the X-ray capture panel, at least a first handle secured to the housing member, means moveably connected to the at least first handle for moving the handle from a position parallel to the plane of the portable device to a position perpendicular to the plane of the portable device and from a position perpendicular to the plane of the portable device to a position parallel to the plane of the portable device. An accessory for carrying or holding the portable device, wherein the accessory is in the form of a framne secured to the portable device or a cover that portable device is placed within.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventors: Yasushi Kuramoto, Tsuneo Imai, Junichi Yamayoshi, Keith O. Gillams, Kristine D. Gerhards
  • Patent number: 6754306
    Abstract: A portable medical digital radiography apparatus includes a ruggedized transport case housing several system components, a digital X-ray image sensor and an X-ray generator. The digital X-ray image sensor is hingedly coupled to a stand that is mounted to the ruggedized transport case. The X-ray generator is preferably positioned opposite to the center of digital X-ray image sensor. A patient support unit is disposed between digital X-ray image sensor and the X-ray generator. An image acquisition unit is connected to the X-ray generator and to the digital X-ray image sensor and fixedly mounted in the ruggedized transport case. An image display unit is connected to the image acquisition unit and spaced from the X-ray generator.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: June 22, 2004
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Kenneth Cho, Mark Freckleton, Peter Martin
  • Publication number: 20040066899
    Abstract: An X-ray equipment includes a movable carriage, an X-ray tube for irradiating an X-ray on a subject, and a cassette storage box for storing a cassette with a radiographic storage medium such as a film. In the X-ray equipment, when the cassette storage box is pulled and tilted, a gateway for the cassette is opened. When the cassette storage box is pushed back, the gateway is closed. The X-ray equipment further includes a storage box locking device for locking the cassette storage box in a state where the gateway is closed and for unlocking the cassette storage box when the locked state is released, and a locking release holding device for holding the storage box locking device in a released state.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 8, 2004
    Applicant: SHIMADZU CORPORATON
    Inventors: Tatsuya Araki, Kimihiro Takahama, Hiroshi Miyata, Mitsuhiro Hashimoto, Toshiaki Nakamura, Takahiro Kamitake
  • Patent number: 6705758
    Abstract: A mobile X-ray apparatus has a carriage provided with at least one pair of independently driven driving wheels and a motor. The carriage includes a driving handle, which comprises sidebars, attached to a rotation axis solidly fixed to the carriage, and a crossbar, which is connected to the sidebars in an articulated manner to allow the turning movement of the sidebars about the said axis independently of each other. The apparatus also controls the operation of the motor by movements of the handle. The sidebars are provided with a toothed rim that moves along with the movement of the respective sidebar. The movements are measured by a potentiometer, which converts the movement into an electric signal by which the motor of the driving wheels is controlled.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: March 16, 2004
    Assignee: Instrumntarium Corp.
    Inventors: Jarmo Luusua, Petri Pohjoispuro, Petri Pyrrö
  • Patent number: 6661876
    Abstract: A mobile, miniature x-ray source includes a low-power consumption cathode element for mobility, and an anode optic creating a field free region to prolong the life of the cathode element. An electric field is applied to an anode and a cathode that are disposed on opposite sides of an evacuated tube. The anode includes a target material to produce x-rays in response to impact of electrons. The cathode includes a cathode element to produce electrons that are accelerated towards the anode in response to the electric field between the anode and the cathode. The tube can have a length less than approximately 3 inches, and a diameter or width less than approximately 1 inch. The cathode element can include a low-power consumption cathode element with a low power consumption less than approximately 1 watt. The power source can include a battery power source. A field-free region can be positioned at the anode to resist positive ion acceleration back towards the cathode element.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: December 9, 2003
    Assignee: Moxtek, Inc.
    Inventors: Clark Turner, Arturo Reyes, Hans K. Pew, Mark W. Lund, Michael Lines, Paul Moody, Sergei Voronov
  • Publication number: 20030219100
    Abstract: In a radiographic method using a mobile radiographic apparatus including an image generating unit which includes photoelectric conversion elements and generates radiographic image data of an object, key information for selecting radiographic request information is transmitted to an external information system having the radiographic request information. The radiographic request information transmitted from the information system is received. The operation of the image generating unit is controlled based on the received radiographic request information.
    Type: Application
    Filed: May 13, 2003
    Publication date: November 27, 2003
    Inventor: Keiji Okoda
  • Patent number: 6625252
    Abstract: A mobile medical image scanner and teleradiology system are incorporated into an ambulance or other vehicle to permit a patient to be diagnosed while en route to a treatment facility such as a trauma center. The system obtains medical image data while the patient is being transported in the vehicle and transmits the medical image data to a receiver at a location which is remote from the vehicle. At the remote location, the transmitted medical image data is displayed in a humanly discernable manner and interpreted by a qualified physician, who then communicates diagnostic information to the technicians in the vehicle and/or to the treating physicians at the treatment facility. By providing diagnostic information back to the treating physicians prior to the patient's arrival at the treatment facility, the patient can be routed directly to the operating room, or the intensive care unit as necessary, thereby saving valuable time.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: September 23, 2003
    Assignee: GE Medical Systems Global Technology Co., LLC
    Inventor: Paul J. Mirabella
  • Publication number: 20030142788
    Abstract: A portable medical digital radiography apparatus includes a ruggedized transport case housing several system components, a digital X-ray image sensor and an X-ray generator. The digital X-ray image sensor is hingedly coupled to a stand that is mounted to the ruggedized transport case. The X-ray generator is preferably positioned opposite to the center of digital X-ray image sensor. A patient support unit is disposed between digital X-ray image sensor and the X-ray generator. An image acquisition unit is connected to the X-ray generator and to the digital X-ray image sensor and fixedly mounted in the ruggedized transport case. An image display unit is connected to the image acquisition unit and spaced from the X-ray generator.
    Type: Application
    Filed: November 21, 2002
    Publication date: July 31, 2003
    Inventors: Kenneth Cho, Michael Freckleton, Peter Martin
  • Publication number: 20030021377
    Abstract: A mobile, miniature x-ray source includes a low-power consumption cathode element for mobility, and an anode optic creating a field free region to prolong the life of the cathode element. An electric field is applied to an anode and a cathode that are disposed on opposite sides of an evacuated tube. The anode includes a target material to produce x-rays in response to impact of electrons. The cathode includes a cathode element to produce electrons that are accelerated towards the anode in response to the electric field between the anode and the cathode. The tube can have a length less than approximately 3 inches, and a diameter or width less than approximately 1 inch. The cathode element can include a low-power consumption cathode element with a low power consumption less than approximately 1 watt. The power source can include a battery power source. A field-free region can be positioned at the anode to resist positive ion acceleration back towards the cathode element.
    Type: Application
    Filed: July 29, 2002
    Publication date: January 30, 2003
    Applicant: Moxtek, Inc.
    Inventors: Clark Turner, Arturo Reyes, Hans K. Pew, Mark W. Lund, Michael Lines, Paul Moody, Sergei Voronov
  • Publication number: 20020191744
    Abstract: A mobile medical image scanner and teleradiology system are incorporated into an ambulance or other vehicle to permit a patient to be diagnosed while en route to a treatment facility such as a trauma center. The system obtains medical image data while the patient is being transported in the vehicle and transmits the medical image data to a receiver at a location which is remote from the vehicle. At the remote location, the transmitted medical image data is displayed in a humanly discernable manner and interpreted by a qualified physician, who then communicates diagnostic information to the technicians in the vehicle and/or to the treating physicians at the treatment facility. By providing diagnostic information back to the treating physicians prior to the patient's arrival at the treatment facility, the patient can be routed directly to the operating room, or the intensive care unit as necessary, thereby saving valuable time.
    Type: Application
    Filed: August 22, 2002
    Publication date: December 19, 2002
    Inventor: Paul J. Mirabella
  • Patent number: 6442316
    Abstract: The present invention is a fiber optic cable which uses pressure sensitive films or tactile films in order to detect areas on a fiber optic cable where excessive loads have been applied or experienced. In the present invention, a plurality of strips of tactile film or pressure sensitive film are inserted, at regular intervals, throughout the fiber optic cable structure in a fashion similar to that of swellable tape. The tactile film or pressure sensitive film used can be any color-changing stress sensor which is formed in the shape of a flat strip. The present invention uses strips of tactile or pressure sensitive film of different widths which are inserted periodically throughout the cable, both circumferentially and along the length of the cable. The films are located between the buffer tube(s) and the outer jacket of the cable or between the fibers and the outer jacket of the cable. This intermittent use decreases the overall cost and weight of the cable, over using a continuous length of tactile film.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: August 27, 2002
    Assignee: Alcatel
    Inventors: Mike Rossi, Nicholas V. Nechitailo
  • Publication number: 20020057762
    Abstract: A portable radiation imaging system is provided which is capable of always performing imaging in a state where the tilt of the radiation emitted from a radiation source in relation to the detection surface of an image detection device is substantially perpendicular. The system is equipped with a tilt adjustment means that makes the tilt of the radiation in relation to the detection surface of a radiation image detection device substantially perpendicular by changing the tilt angle of a radiation source based on an angular signal representing the degree of tilt of the radiation in relation to said detection surface output by an angular signal output means, and a command means that generates an exposure command to the radiation source when the tilt of the radiation to be emitted from said radiation source in relation to the detection surface of said radiation image detection device is substantially perpendicular.
    Type: Application
    Filed: November 15, 2001
    Publication date: May 16, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hiroshi Tanaka, Kazuo Shimura, Takeshi Ohkubo
  • Patent number: 6285740
    Abstract: A dual-energy x-ray system is provided which is useful in densitometry and other applications. A dual energy x-ray source, formed field emission x-ray tube driven by a Marx generator, produces a single x-ray pulse of a very short duration (e.g., 10 to 200 nanoseconds). The pulse provides x-ray energy of a first, high value early in the pulse and x-ray energy of a second, lower value later in the pulse so as to provide a dual energy level x-ray distribution comprising hard and soft x-rays. A detector system having dual x-ray energy discrimination properties, formed by soft and hard x-ray detectors and an inter-detector, receives the x-ray pulse and discriminates between the dual x-ray energy levels of the pulse.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: September 4, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John F. Seely, Craig N. Boyer, Glenn E. Holland
  • Patent number: 6205200
    Abstract: A portable X-ray unit, of a relatively light-weight, occoping a volume of less then one-half a cubic foot containing an x-ray head assembly, a unique Marx generator, a plurality of spark-gap switches and control electronics is disclosed. The Marx generator allows for the development of a relatively high voltage in excess of 100 kV, yet allows for the discharge thereof within the nanosecond range. The Marx generator is enclosed by an acrylic insulator that cooperates with an aluminum enclosure, which functions as a return current path for the capacitors in the Marx generator and also as a shield against the escape of electromagnetic radiation from the pulsed x-ray unit. The Marx generator and spark-gap switches are confined within the pressurized chamber that may contain nitrogen gas to reduce the separation of the gap in the spark-gap switches.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: March 20, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Craig N. Boyer, Glenn E. Holland, John F. Seely
  • Patent number: 6169782
    Abstract: A portable x-ray system includes an x-ray source, an internal power supply for supplying an input voltage, and a voltage converter in electrical connection between the power supply and the source. The converter varies the input voltage from the power supply to provide an output voltage useable in the x-ray source to generate x-rays of a predetermined energy. The power supply includes a battery power store, a capacitor power store, and a switching unit to selectively connect the power stores to the voltage converter individually or together to provide the input voltage to the voltage converter during an exposure.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: January 2, 2001
    Assignee: Siemens-Elema AB
    Inventor: Lennart Zetterlund
  • Patent number: 6151379
    Abstract: The present invention relates to a device for measuring density or determining the presence and the amount of materials of different density in an object to be measured, of a solid, liquid or gaseous material, said device comprising at least one source of radiation for emitting electromagnetic radiation, and at least one sensor for measuring the radiation intensity, so positioned as to absorb radiation form the source of radiation and being connected to a calculation unit. In accordance with the invention the device emits radiation of at least two wavelenghts and comprises measurement means for determination of the extension of the object between the source of radiation and the sensor. In addition, the invention relates to a method of measuring density, comprising radiating electromagnetic rays through an object to be measured and measuring the radiation intensity on the ray-exit side of the object to be measured.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: November 21, 2000
    Inventors: Ragnar Kullenberg, Anders Ullberg
  • Patent number: 5651045
    Abstract: A X-ray pulse generator for scientific, medical and industrial applications comprises a high-voltage source, a X-ray emitting head which is able to produce X-rays when it receives an electric pulse, a plurality of electric lines between the source and the head, a charge store for storing the electric power supplied by the source and a trigger for releasing the electric power stored in the store and triggering the pulse which is then transferred to the head by the electric lines. These lines are wound and are on one side are connected in parallel to the store and on the other side are connected in series to the head.
    Type: Grant
    Filed: December 26, 1995
    Date of Patent: July 22, 1997
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Jean-Michel Pouvesle, Christophe Cachoncinlle, Raymond Viladrosa
  • Patent number: 5631943
    Abstract: A portable and preferably hand-held X-ray generator for use in intraoral and other X-ray applications, and a new process of dental image acquisition which utilizes a novel receptor holder physically linked to the lightweight, portable generator, and a unique, articulating arm and cradle which allows one generator to be used in multiple operatories. The system's generator has a reduced X-ray output and much smaller focal spot area than conventional dental X-ray generators, which reduces the X-ray output and the overall patient X-ray burden. The smaller focal spot also allows for improved resolution in the final image.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: May 20, 1997
    Inventor: Dale A. Miles
  • Patent number: 5627871
    Abstract: A compact x-ray tube assembly comprises an evacuated chamber enclosed by a ceramic tubular envelope, an attached power supply at one end connected to an emitter inside the chamber, electrostatic means for focusing a beam of electrons on a metal foil target, an end window at the other end comprising said target, the thickness and composition of the metal foil target and the e-beam energy being selected to generate a microfocused bright beam of x rays of a preselected energy. The compact assembly is useful in a method for aligning or positioning layers used in the production of microelectronics components.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: May 6, 1997
    Assignee: Nanodynamics, Inc.
    Inventor: Chia-Gee Wang
  • Patent number: 5608774
    Abstract: A portable, self-contained, electronic radioscopic imaging system uses a pulsed X-ray source, a remote X-ray sensor, and a self-contained, display and controller unit to produce, store, and/or display digital radioscopic images of an object under investigation. The pulsed X-ray source transmits a burst of narrow pulses of X-rays at the object being investigated at a low repetition rate. The X-ray sensor utilizes an X-ray scintillating screen in combination with either an integrating CCD camera, or an active matrix of thin film transistors and sample-and-hold photodiodes, to produce an integrated signal representative of the accumulated number of flashes of radiation (X-ray pulses that pass through the object) that are sensed in a given pixel area of the scintillating screen.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: March 4, 1997
    Assignee: Science Applications International Corporation
    Inventors: Raulf M. Polichar, Scott T. Smith
  • Patent number: 5530362
    Abstract: A mobile x-ray unit operates from a rechargeable battery in a number of different modes which draw current from the battery. The present invention determines the number of patient exams remaining in the mobile x-ray unit, and has the capability of monitoring battery capacity usage as well as displaying information. The current drawn from the battery is measured as the system operates, which allows for the remaining capacity of the battery to be calculated. The remaining capacity of the battery can be adjusted based on usage of the system in each particular application. The system then calculates patient exams remaining based on the adjusted calculated remaining capacity of the battery, and displays the calculated patient exams remaining.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: June 25, 1996
    Assignee: General Electric Company
    Inventors: Manfred D. Boehm, Michael J. Pajerski
  • Patent number: 5514873
    Abstract: An x-ray apparatus has a portable radiation detector having a housing containing a radiation transducer formed of individual detector cells that convert incident radiation, particularly x-radiation, into electrical signals. The radiation detector is implemented cable-free. A wireless transceiver for the infeed of operating energy and for the outfeed of the signals is provided. An advantage of this radiation detector is the cable-free construction, and the simple manipulation and reusability resulting therefrom. Moreover, the radiation detector is better suited to hygienic demands.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: May 7, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ulrich Schulze-Ganzlin, Josef Ploetz
  • Patent number: 5442677
    Abstract: A light weight battery powered x-ray source capable of producing high intensity x-ray emissions with low power consumption. A modular construction locates all high voltage components including the x-ray tube, spark gap trigger, spiral capacitor and the secondary of a step-up transformer in a sealed canister which can be decoupled both mechanically and electrically by unscrewing a simple threaded coupling. A center module contains the primary of the step-up transformer, circuit boards for electronic components and a pulse counter/selector. A battery pack with rechargeable Nicad batteries is removably connectable to the center module. High intensity pulses are achieved in part by connecting the spiral capacitor at midlength to the spark gap trigger. An improved x-ray tube with light weight but effective lead shielding and an overall length of less than two inches is also disclosed.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: August 15, 1995
    Inventors: John Golden, Phillip Golden
  • Patent number: 5335161
    Abstract: An unusually lightweight and readily portable X-ray machine is achieved through the use of a multi-stage DC voltage multiplier combined with a multi-stage AC filament current stepdown transformer, incorporating unique components and subassemblies. Multi-prong clamping inter-stage connectors couple diode strings to plural capacitor array junctions and to conductors matching interstage DC potentials between multiplier stages and transformer stages. A high voltage input transformer for the multiplier incorporates dual insulating layers, a relatively thick, heat-resistant Teflon layer exhibiting extremely low dielectric losses and a thinner Epoxy layer having a tractive outer surface supporting a large plurality of fine wire secondary winding turns. A laser target selector removably mountable on the X-ray tube's projection portal illuminates a target spot to allow adjusted aiming of the X-ray beam.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: August 2, 1994
    Assignee: Lorad Corporation
    Inventors: Anthony J. Pellegrino, Earl C. Mayes, Donald E. Sharpe, George H. Bantz
  • Patent number: 5231564
    Abstract: A power supply for producing excitation of an X-ray tube filament of an unusually lightweight and readily portable X-ray machine is achieved through the use of multiple voltage multiplying-rectifying stages powered by a transformer driven at 25 kHz. A four amp-four volt electrical current is applied across the X-ray tube filament by the use of a multi-stage filament transformer array driven at 33 kHz. The multi-stage filament transformer array is interconnected to the multiple voltage multiplying-rectifying stage so as to limit the voltage potential between stages. The use of 25 kHz and 33 kHz driving signals eliminates cross talk between signal producing circuits.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: July 27, 1993
    Assignee: Lorad Corporation
    Inventors: Anthony J. Pellegrino, Earl C. Mayes, Donald E. Sharpe, George H. Bantz
  • Patent number: 5226064
    Abstract: In a CT (computerized tomographic) scanning apparatus, a biological body under medical examination is scanned to acquire image data on the scanned body, whereby a computerized tomographic image of the scanned body is reconstructed by processing the acquired image data. The CT scanning apparatus comprises: an AC/DC converting unit for converting AC (alternating current) power supplied from a commercial power source into first DC (direct current) power; a peak power consumption unit for consuming peak power during a scanning operation; and a secondary battery unit rechargeable by the first DC power supplied from the AC/DC converting unit and capable of supplying second DC power to the peak power consumption unit during at least the scanning operation.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: July 6, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsuru Yahata, Shigeru Tanaka
  • Patent number: 5111493
    Abstract: A small, hand held X-ray machine is constructed to be readily portable, including a portable power supply, yet is sufficiently powerful to take an X-ray of a human patient. The X-ray machine includes a ceramic X-ray tube which is resistant to shocks and vibrations, structurally strong, as well as light weight, further contributing to the convenient portability of the X-ray machine.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: May 5, 1992
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Melvin P. Siedband
  • Patent number: 5091929
    Abstract: An X-ray stand with two hollow arms for supporting an X-ray tube and an X-ray receptor contains within one hollow arm a grounded anode X-ray tube and a non-inductive Cockcroft-Walton voltage multiplier power supply also grounded at one end to the support arm. The hollow arm forms a chamber filled with insulating fluid surrounding both the X-ray tube and its voltage multiplier. The voltage multiplier and X-ray tube plug together physically and electrically within the oil filled arm.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: February 25, 1992
    Inventor: John K. Grady
  • Patent number: 5077771
    Abstract: A pulsed precision x-ray source includes a miniaturized internally self-shielding x-ray tube and an integral generator contained in a hand-held housing for generating timed bursts of x-ray having regulated energy level. A control grid and focus electrode within the tube enable precise on-off control of an electron beam directed to an x-ray emitting anode. The integral generator system includes an elongated, U-shaped unitary, molded plastic block mounted in the housing and includes a high voltage transformer having primary and secondary annular windings encased in a transformer portion of the block defining a central opening outside of the block for receiving a transformer core therethrough and, a capacitor-diode voltage multiplier stack connected to the secondary winding and having a positive node connectable to the anode and a negative node connectable to the cathode.
    Type: Grant
    Filed: March 1, 1989
    Date of Patent: December 31, 1991
    Assignee: Kevex X-ray Inc.
    Inventors: Brian Skillicorn, David C. Reynolds, Richard S. Burrow
  • Patent number: 4979198
    Abstract: Method and apparatus for the production of fluoroscopic and radiographic x-ray images utilizing a portable hand-held and battery operated x-ray system. The system incorporates a unique high voltage power supply of diminutive size and weight which may be disposed totally within the hand-held system. By utilizing the system in conjunction with a currently available hand operated instant Polaroid film developer, the system provides total portability and field operability in both fluoroscopic and radiographic mode.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: December 18, 1990
    Inventors: David H. Malcolm, George P. T. Wilenius
  • Patent number: 4924485
    Abstract: A portable radiographic generator is provided with an explosive magnetic flux compression generator producing the high voltage necessary to generate a relativistic electron beam. The relativistic electron beam is provided with target materials which generates the desired radiographic pulse. The magnetic flux compression generator may require at least two conventional explosively driven generators in series to obtain a desired output voltage of at least 1 MV. The cathode and anode configuration of the diode are selected to provide a switching action wherein a high impedance load is presented to the magnetic flux compression generator when the high voltage is being generated, and thereafter switching to a low impedance load to generate the relativistic electron beam. Magnetic flux compression generators can be explosively driven and provided in a relatively compact, portable form for use with the relativistic x-ray equipment.
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: May 8, 1990
    Inventor: Robert F. Hoeberling
  • Patent number: 4856036
    Abstract: Method and apparatus for the production of fluoroscopic and radiographic x-ray images utilizing a portable hand-held and battery operated x-ray system. The system incorporates a unique high voltage power supply of diminutive size and weight which may be disposed totally within the hand-held system. By utilizing the system in conjunction with a currently available hand operated instant Polaroid film developer, the system provides total portability and field operability in both fluoroscopic and radiographic mode.
    Type: Grant
    Filed: June 20, 1988
    Date of Patent: August 8, 1989
    Assignee: Xi Tech Inc.
    Inventors: David H. Malcolm, George P. T. Wilenius
  • Patent number: 4797907
    Abstract: A mobile X-ray machine utilizes batteries to provide electrical power to produce high-voltage necessary to generate X-rays during a X-ray exposure. A battery charger circuit is used to supplement the battery during the X-ray exposure and charges the batteries during non-exposure periods. By using batteries to power the X-ray generating device, the X-ray machine is capable of being operated from 110 volt AC power sources permitting the machine to be mobile due to its ability of being operated from ordinary house current.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: January 10, 1989
    Assignee: Diasonics Inc.
    Inventor: Richard L. Anderton
  • Patent number: 4789998
    Abstract: A circuit for controlling a medium frequency x-ray diagnostics generator, the generator having a power rectifier connected to a main power source having an unknown internal resistance. A low-voltage filter stage, and inverter, a high-voltage transformer, and a high-voltage rectifier are connected in sequence between the power rectifier and an x-ray tube. A control unit for the x-ray tube is provided which controls the x-ray tube input current dependent upon the input voltage to the inverter, so that the x-ray tube voltage is maintained constant independently of the internal network resistance of the main. The generator can thus be connected to different mains having different internal resistances without affecting operation of the x-ray tube, making the generator suitable for use as a portable generator.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: December 6, 1988
    Assignee: Siemens Aktiengesellschaft
    Inventor: Werner Kuehnel
  • Patent number: 4694480
    Abstract: A hand held x-ray source includes an x-ray tube and integral generator for exciting the tube at precisely controllable high voltage and direct current levels. The integral generator includes an elongated housing grippable by the hand and an elongated unitary molded block mounted in the housing and thermally sumped thereto. The block defines a first heat conduction fluid fillable cavity for receiving the tube and for providing a high voltage connection to the anode adjacent to the interior end thereof, the block being formed to contain and insulate interconnected elements providing a single voltage multipliers tack, and primary and secondary windings of a single high voltage switching transformer having a ferrite magnetic core external to the block. A heat conduction fluid is disposed between the tube and the block for conducting heat generated during tube operation to the block.
    Type: Grant
    Filed: July 30, 1985
    Date of Patent: September 15, 1987
    Assignee: Kevex Corporation
    Inventor: Brian Skillicorn
  • Patent number: RE35025
    Abstract: A mobile X-ray machine utilizes batteries to provide electrical power to produce high-voltage necessary to generate X-rays during a X-ray exposure. A battery charger circuit is used to supplement the battery during the X-ray exposure and charges the batteries during non-exposure periods. By using batteries to power the X-ray generating device, the X-ray machine is capable of being operated from 110 volt AC power sources permitting the machine to be mobile due to its ability of being operated from ordinary house current.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: August 22, 1995
    Assignee: OEC Medical Systems
    Inventor: Richard L. Anderton